:root {
  color-scheme: dark;
  
  /* Deep Space Theme - Softened Contrast */
  --bg: #111418; /* Slightly lighter than pure black */
  --bg-accent: #191D24;
  
  /* Panels */
  --panel: rgba(28, 33, 40, 0.75);
  --panel-strong: rgba(22, 27, 34, 0.95);
  --panel-muted: rgba(28, 33, 40, 0.4);
  --panel-header: rgba(28, 33, 40, 0.9);
  
  /* Borders */
  --panel-border: rgba(240, 246, 252, 0.08);
  --panel-border-strong: rgba(240, 246, 252, 0.12);
  
  /* Controls */
  --control-bg: rgba(240, 246, 252, 0.04);
  --control-border: rgba(240, 246, 252, 0.06);
  
  /* Inputs - Modern Translucent */
  --input-bg: rgba(13, 17, 23, 0.4); /* Translucent */
  --input-bg-strong: rgba(1, 4, 9, 0.6);
  --input-border: rgba(240, 246, 252, 0.1);
  --input-border-strong: rgba(240, 246, 252, 0.15);
  
  /* Typography - Softened for better readability */
  --text: #C9D1D9; /* Reverted to soft gray */
  --text-soft: #8B949E;
  --muted: #6E7681;
  
  /* Accents */
  --accent: #797EF9;
  --accent-strong: #A2A7FC;
  --accent-soft: rgba(121, 126, 249, 0.15);
  --accent-soft-strong: rgba(121, 126, 249, 0.25);
  --focus-ring: rgba(121, 126, 249, 0.5);
  
  /* Functional Colors */
  --warning: #D29922;
  --warning-soft: rgba(210, 153, 34, 0.15);
  --warning-faint: rgba(210, 153, 34, 0.05);
  --warning-border: rgba(210, 153, 34, 0.4);
  --warning-text: #E3B341;
  
  --danger: #F85149;
  --danger-soft: rgba(248, 81, 73, 0.15);
  --danger-faint: rgba(248, 81, 73, 0.05);
  --danger-border: rgba(248, 81, 73, 0.4);
  --danger-text: #FF7B72;
  
  --status: #27C948;
  
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0,0,0,0.3);

  /* Success colors */
  --success: #27C948;
  --success-soft: rgba(39, 201, 72, 0.15);
  --success-text: #6fdca5;

  /* Border Radius — 3-level scale + pill */
  --radius: 12px;
  --radius-sm: 6px;   /* buttons, badges, small inputs */
  --radius-md: 10px;  /* panels, cards, proposals, code blocks */
  --radius-lg: 14px;  /* modals, dialogs, large containers */

  /* Spacing — 4px-based scale */
  --space-1: 4px;
  --space-2: 6px;
  --space-3: 8px;
  --space-4: 12px;
  --space-5: 16px;
  --space-6: 20px;
  --space-7: 24px;
  --space-8: 32px;

  /* Transition — 3 speeds */
  --duration-fast: 0.12s;
  --duration-normal: 0.18s;
  --duration-slow: 0.25s;

  --sidebar-width: 52px;
  --sidebar-panel-width: calc((100vw - var(--sidebar-width) - 4px) * 0.25);
  --topbar-height: 44px;
}

* {
  box-sizing: border-box;
}

/* ── Universal focus-visible ring ── */
:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Suppress for elements that handle their own focus */
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[contenteditable]:focus-visible {
  outline: none;
}

/* ── Universal scrollbar styling ── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.14);
}

::-webkit-scrollbar-corner {
  background: transparent;
}

/* ── Reduced motion preference ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  /* Build & update spinners: always animate (essential status feedback) so
     the custom spinner — not the OS wait cursor — signals progress. */
  .build-button-spinner,
  .update-button-spinner {
    animation-duration: 0.8s !important;
    animation-iteration-count: infinite !important;
  }
  /* TeX environment setup spinner: essential progress feedback. */
  .env-hero.is-checking .env-hero-icon::before,
  .env-hero.is-installing .env-hero-icon::before {
    animation-duration: 0.8s !important;
    animation-iteration-count: infinite !important;
  }
  /* Thinking indicator: always animate (status feedback) */
  .ai-message.ai-thinking-message::after {
    animation-duration: 2s !important;
    animation-iteration-count: infinite !important;
  }
  .ai-message.ai-thinking-message .ai-message-content {
    animation-duration: 3s !important;
    animation-iteration-count: infinite !important;
    transition-duration: 0.2s !important;
  }
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 15% 0%, rgba(121, 126, 249, 0.08), transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(162, 167, 252, 0.05), transparent 45%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.01), transparent 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.01em;
  opacity: 0;
  transition: opacity 0.35s ease;
}

body.is-ready {
  opacity: 1;
}

.app {
  min-height: 100vh;
  height: 100%;
  display: grid;
  grid-template-rows: var(--topbar-height) 1fr;
  gap: 0;
  padding: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 32%);
}

body.is-ready .app {
  opacity: 1;
}

body.has-editor .editor-group.is-empty .editor-placeholder {
  opacity: 1;
}

body.has-editor .editor-group:not(.is-empty) .editor-placeholder {
  opacity: 0;
}

.editor-group.is-empty .editor-host {
  visibility: hidden;
  pointer-events: none;
}

/* ===========================================
   Launcher - Two Column Layout
   =========================================== */

.launcher {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 20;
}

.launcher.is-visible {
  display: flex;
}

body.has-launcher {
  overflow: hidden;
}

body.has-launcher .app {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

/* Two column container */
.launcher-container {
  display: flex;
  gap: 64px;
  max-width: 800px;
  width: 100%;
  padding: 32px;
  align-items: flex-start;
}

/* Left column - brand and actions */
.launcher-left {
  display: flex;
  flex-direction: column;
  gap: 32px;
  width: 240px;
  flex-shrink: 0;
}

/* Right column - recent projects */
.launcher-right {
  flex: 1;
  min-width: 0;
  max-height: 400px;
  display: flex;
  flex-direction: column;
}

/* Brand section */
.launcher-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.launcher-icon-wrap {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.launcher-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.launcher-icon-wrap::after {
  display: none;
}

.launcher-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.launcher-tagline,
.launcher-note,
.launcher-divider {
  display: none;
}



.launcher-status {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.5;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--danger-faint);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
}

/* Action buttons - vertical layout */
.launcher-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.launcher-action {
  position: relative;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  text-align: left;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-normal) ease, border-color var(--duration-normal) ease;
}

.launcher-action:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.launcher-action::before {
  display: none;
}

.launcher-action:not(:disabled):hover {
  background: var(--panel-strong);
  border-color: var(--panel-border-strong);
}

.launcher-action.is-selected {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.launcher-action.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.launcher-action.primary:not(:disabled):hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.launcher-action:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.launcher-action-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
}

.launcher-action-desc {
  display: none;
}


/* Recent Projects Section */
.launcher-recent {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.launcher-recent-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.launcher-recent-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.launcher-recent-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  margin: -4px -8px;
  border: none;
  background: transparent;
  color: var(--text-soft);
  font-size: 11px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--duration-normal) ease, color var(--duration-normal) ease;
}

.launcher-recent-toggle:hover {
  background: var(--control-bg);
  color: var(--text);
}

.launcher-recent-toggle-icon {
  transition: transform var(--duration-normal) ease;
}

.launcher-recent-toggle[aria-expanded="true"] .launcher-recent-toggle-icon {
  transform: rotate(180deg);
}

.launcher-recent-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.launcher-recent-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.launcher-recent-row .launcher-recent-item {
  flex: 1;
  min-width: 0;
}

.launcher-recent-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  min-width: 34px;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  transition: background var(--duration-normal) ease, color var(--duration-normal) ease, opacity var(--duration-normal) ease;
  opacity: 0.55;
  flex-shrink: 0;
  font-size: 18px;
  line-height: 1;
}

.launcher-recent-row:hover .launcher-recent-remove,
.launcher-recent-row:focus-within .launcher-recent-remove {
  opacity: 1;
}

.launcher-recent-remove:hover {
  background: var(--panel);
  color: var(--danger-text);
}

.launcher-recent-remove:active {
  background: var(--panel-strong);
}

.launcher-recent-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
  transition: background var(--duration-normal) ease;
  flex-shrink: 0;
}

.launcher-recent-item:hover {
  background: var(--panel);
}

.launcher-recent-item:active {
  background: var(--panel-strong);
}

.launcher-recent-item-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.launcher-recent-item-path {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  direction: rtl;
  text-align: left;
}

.launcher-recent-empty {
  padding: 24px 16px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.launcher-lang-wrap {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
}

.launcher-lang-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.launcher-lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  padding: 6px;
  background: var(--panel-strong, #1c242e);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.launcher-lang-menu.is-hidden {
  display: none;
}

.launcher-lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s ease;
}

.launcher-lang-option:hover {
  background: rgba(255, 255, 255, 0.08);
}

.launcher-lang-option.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.launcher-lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--panel-border-strong);
  color: var(--text);
}

.launcher-lang-toggle:active {
  transform: translateY(1px);
}

.launcher-lang-toggle svg {
  flex-shrink: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
  /* Fixed height + centered content so the toolbar buttons sit on a known
     baseline that we can line up with the macOS traffic lights
     (trafficLightPosition y:10 → ~12px lights centered around y16). */
  height: 33px;
  box-sizing: border-box;
  padding: 0;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  -webkit-app-region: drag;
}

.topbar-left {
  display: inline-flex;
  align-items: center;
  padding-left: 78px;
  -webkit-app-region: no-drag;
}

.topbar-drag {
  flex: 1;
  min-width: 0;
  -webkit-app-region: drag;
}

.top-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  -webkit-app-region: no-drag;
}

.topbar-layout-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
  -webkit-app-region: no-drag;
}

.topbar-layout-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-soft);
}

.topbar-layout-toggle.is-active {
  color: var(--text);
}

.topbar-layout-toggle.is-active .topbar-layout-fill {
  opacity: 0.45;
}

.topbar-layout-toggle svg {
  flex-shrink: 0;
}

.pill {
  border: 1px solid var(--control-border);
  background: var(--control-bg);
  color: var(--text);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: default;
}

.pill.ghost {
  background: transparent;
  color: var(--muted);
}

.pill:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pill.is-busy {
  border-color: var(--focus-ring);
  background: var(--accent-soft);
}

.main {
  display: grid;
  grid-template-columns: var(--sidebar-width) var(--sidebar-panel-width) 4px 1fr;
  min-height: 0;
  overflow: hidden;
}

.main.sidebar-collapsed {
  grid-template-columns: var(--sidebar-width) 0 0 1fr;
}

.main.sidebar-collapsed .sidebar-panel {
  overflow: hidden;
  width: 0;
  min-width: 0;
  border: none;
  padding: 0;
  visibility: hidden;
}

.main.sidebar-collapsed .resizer {
  width: 0;
  min-width: 0;
  overflow: hidden;
  visibility: hidden;
}

.resizer {
  cursor: col-resize;
  background: var(--panel-border);
  transition: background 0.2s;
}

.resizer:hover,
.resizer.is-resizing {
  background: var(--accent);
}

/* Glass Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-3); /* Symmetrical padding */
  background: rgba(255, 255, 255, 0.02); /* Slight white tint to brighten */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--panel-border);
}

.sidebar-panel {
  display: grid;
  grid-template-rows: 1fr;
  background: rgba(255, 255, 255, 0.02); /* Slight white tint to brighten */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--panel-border);
  min-height: 0;
  overflow: hidden;
}

.panel {
  display: none;
  grid-template-rows: 40px 1fr; /* Taller header */
  min-height: 0;
  overflow: hidden;
}

.panel.is-active {
  display: grid;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px; /* More padding */
  border-bottom: 1px solid transparent; /* Hidden border for cleaner look */
  background: transparent; /* Let glass shine through */
  font-size: 11px;
  color: var(--muted);
}

.panel.no-header {
  grid-template-rows: 1fr;
}

.panel.no-header .panel-header {
  display: none;
}

.panel-header-actions {
  display: inline-flex;
  gap: 4px; /* Tighter gap */
  align-items: center;
}

.panel-title {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
}

.panel-button {
  border: none;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease, transform var(--duration-fast) ease, border-color var(--duration-fast) ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.panel-button.icon-only {
  padding: 0;
  width: 24px;
  min-width: 24px;
  justify-content: center;
}

.panel-button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  transform: translateY(-1px);
}

.panel-button:active {
  transform: translateY(0);
}

.panel-button:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.panel-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  background: transparent;
}

.block-mode-toggle {
  position: relative;
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 0;
  border: 1px solid var(--control-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  padding: 0; /* Flush with border */
  font-size: 11px; /* Increased from 10px */
  cursor: pointer;
  color: var(--text-soft);
  overflow: hidden;
  min-width: 140px; /* Ensure sufficient width */
}

.block-mode-toggle:hover {
  color: var(--text-soft);
}

.block-mode-toggle::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  border-radius: 0; /* Let container clip the corners */
  border: 1px solid var(--accent-soft-strong);
  background: var(--accent-soft);
  transition: transform 0.15s ease-out; /* Snappier transition */
  pointer-events: none;
  box-shadow: none;
}

.block-mode-toggle.is-edit::before {
  transform: translateX(100%);
}

.block-mode-toggle-label {
  position: relative;
  z-index: 1;
  padding: 4px 10px; /* Increased padding */
  line-height: 1.2;
  white-space: nowrap;
  transition: color 0.15s ease;
  text-align: center;
  font-weight: 500;
}

.block-mode-toggle:not(.is-edit) .block-mode-toggle-label--insert {
  color: var(--accent);
  font-weight: 600;
}

.block-mode-toggle.is-edit .block-mode-toggle-label--edit {
  color: var(--accent);
  font-weight: 600;
}

.panel-button.ghost {
  background: transparent;
  color: var(--muted);
}

.panel-button.danger {
  background: rgba(248, 81, 73, 0.18);
  color: var(--danger-text);
  border-color: rgba(248, 81, 73, 0.3);
}

.panel-button.danger:hover {
  background: rgba(248, 81, 73, 0.28);
  border-color: rgba(248, 81, 73, 0.45);
}

.panel-button.danger:active {
  background: rgba(248, 81, 73, 0.35);
}

.panel-body {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 6px;
  padding: 6px;
  min-height: 0;
  overflow: hidden;
}

.panel-body.outline-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

.panel-body.blocks-panel {
  display: flex !important; /* Force flex */
  flex-direction: column;
  gap: 6px;
  overflow: hidden; /* No scroll on container */
  height: 100%;
  position: relative;
}

.block-compose {
  display: flex;
  flex-direction: column;
  gap: 0; /* Remove gap, handle spacing in children */
  flex: 1; /* Grow to fill space above keyboard */
  min-height: 0;
  overflow: hidden; /* Container doesn't scroll */
  padding-right: 0;
  padding-bottom: 0;
}

.block-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  flex: none; /* Don't shrink */
  padding-bottom: 8px; /* Visual spacing */
  margin-bottom: 8px; /* Spacing from input */
  padding-right: 4px; /* Align with scrollbar gutter */
}

.block-textarea {
  min-height: 120px;
  resize: vertical;
}

.block-form {
  display: none;
  gap: 6px;
}

.block-form.is-active {
  display: flex;
  flex-direction: column;
  flex: 1; /* Take remaining space */
  overflow-y: auto; /* Scroll internal content */
  overflow-x: hidden;
  padding-top: 8px; /* Buffer from header */
  padding-right: 4px; /* Space for scrollbar */
  padding-bottom: 20px; /* Bottom comfort space */
}

.block-form[data-form="math"] {
  gap: 10px;
  /* flex: 1 removed - no longer expands to fill space */
  min-height: 0;
}

.block-label {
  font-size: 10px;
  color: var(--muted);
}

.block-math-preview {
  display: grid;
  gap: 6px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 8px 10px 10px;
  background: var(--input-bg);
}

.block-math-preview-label {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.block-math-preview-body {
  position: relative;
  min-height: 54px;
  display: grid;
  align-items: center;
}

.block-math-preview-render {
  font-size: 18px;
  line-height: 1.4;
  display: block;
  color: var(--text);
}

.block-math-preview-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 11px;
  text-align: center;
  padding: 0 8px;
}

.block-math-preview:not(.is-empty) .block-math-preview-placeholder {
  display: none;
}

.block-input {
  width: 100%;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  font-size: 12px;
  font-family: "SF Mono", Menlo, monospace;
}

.block-math-input {
  background: var(--input-bg-strong);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 16px;
  font-family: "Hiragino Sans", "Avenir Next", "Yu Gothic", sans-serif;
  line-height: 1.4;
}

.block-input:focus {
  outline: 2px solid var(--focus-ring);
  outline-offset: 1px;
}

math-field.block-input {
  display: block;
  min-height: 36px;
}

math-field.block-input:focus-within {
  outline: 2px solid var(--focus-ring);
  outline-offset: 1px;
}

math-field.block-math-input {
  min-height: 72px;
  --caret-color: var(--accent);
  --selection-color: var(--focus-ring);
  --selection-background-color: transparent;
}

/* =============================================================================
   MathLive Block Math Field (Enhanced)
   ============================================================================= */

math-field.block-math-field {
  display: inline-block;
  width: max-content;
  min-width: 100%;
  height: auto;
  min-height: 100%;
  padding: 6px 0 10px;
  font-size: 20px;
  line-height: normal;
  background: transparent;
  color: var(--text);
  border: none;
  border-radius: 0;
  --caret-color: var(--accent-strong);
  --selection-color: var(--text);
  --selection-background-color: var(--focus-ring);
  transition: none;
  outline: none;
  box-shadow: none !important;
  overflow: visible;
}

.block-math-input-container {
  min-height: 120px;
  height: auto;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  border-radius: var(--radius-md);
  display: block;
  padding: 0;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.block-math-scroll {
  min-height: 120px;
  max-height: 300px;
  width: 100%;
  overflow: auto;
  padding: 16px 44px 16px 16px;
  scrollbar-gutter: stable both-edges;
}

.math-wysiwyg-panel {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--panel-border-strong);
  background: rgba(18, 22, 28, 0.92);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.28);
  z-index: 3;
  overflow-x: auto;
}

.math-wysiwyg-panel[aria-hidden="true"] {
  display: none;
}

.math-wysiwyg-panel::-webkit-scrollbar {
  height: 6px;
}

.math-wysiwyg-panel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
}

.math-wysiwyg-item {
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-radius: var(--radius-md);
  padding: 4px 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.math-wysiwyg-item.is-active {
  border-color: var(--accent-strong);
  background: rgba(92, 156, 255, 0.18);
  color: var(--text);
}

.math-wysiwyg-item:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.math-wysiwyg-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
}

.math-wysiwyg-label {
  font-size: 11px;
  color: var(--muted);
}

.block-math-menu-toggle {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 24px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border-strong);
  background: rgba(18, 22, 28, 0.85);
  color: var(--text);
  cursor: pointer;
  z-index: 2;
}

.block-math-menu-toggle:hover {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
}

.block-math-menu-toggle:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.block-math-menu-line {
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.85;
}

.block-math-input-container:focus-within {
  outline: none;
}

math-field.block-math-field::placeholder {
  color: var(--text-soft);
}

.block-math-hint {
  font-size: 10px;
  color: var(--muted);
}

.ML__keyboard {
  display: none !important;
}

.block-field {
  display: grid;
  gap: 6px;
}

.block-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  width: 100%;
  min-width: 0;
}

.block-actions-right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  min-width: 0;
}

.block-settings-button,
.block-capture-button {
  padding: 0;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
}

.block-settings-button svg,
.block-capture-button svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.block-format {
  position: relative;
  display: inline-flex;
}

.block-format-button {
  white-space: nowrap;
  width: 56px;
  min-width: 56px;
  max-width: 56px;
  flex: 0 0 56px;
  box-sizing: border-box;
  padding: 2px 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-overflow: ellipsis;
}

.block-format-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 160px;
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
  display: none;
  gap: 4px;
  z-index: 20;
}

.block-format-menu.is-open {
  display: grid;
}

.block-format-option {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font-size: 11px;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.block-format-option:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft-strong);
}

.block-format-option.is-active {
  background: var(--accent-soft-strong);
  border-color: var(--accent);
  color: var(--text);
}

.block-settings-card {
  width: min(840px, 96vw);
  min-height: 540px;
  max-height: min(90vh, 960px);
  overflow: hidden;
  grid-template-rows: auto minmax(0, 1fr);
}

.block-settings-body {
  display: grid;
  gap: 12px;
  overflow-y: auto;
  min-height: 0;
  align-content: start;
}

.block-settings-page {
  display: none;
  gap: 12px;
  grid-auto-rows: max-content;
  align-content: start;
  justify-items: stretch;
}

.block-settings-page.is-active {
  display: grid;
}

.block-settings-item {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  text-align: left;
  display: grid;
  gap: 4px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  align-content: start;
}

.block-settings-item:hover {
  background: var(--panel-strong);
  border-color: var(--panel-border-strong);
}

.block-settings-item-title {
  font-size: 12px;
  font-weight: 600;
}

.block-settings-item-desc {
  font-size: 11px;
  color: var(--muted);
}

.block-settings-nav {
  display: flex;
  justify-content: flex-start;
}

.block-settings-section {
  display: grid;
  gap: 8px;
}

.block-settings-section-title {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.block-settings-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.block-settings-option {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.block-settings-option:hover {
  background: var(--panel-strong);
  border-color: var(--panel-border-strong);
}

.block-settings-option.is-active {
  background: var(--accent-soft-strong);
  border-color: var(--accent);
}

.block-settings-section-hint {
  font-size: 11px;
  color: var(--muted);
}

.block-settings-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: var(--panel-strong);
  font-size: 10px;
  color: var(--text);
}

.block-divider {
  height: 1px;
  background: var(--panel-border);
}

.search-panel {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 8px;
  padding: 10px;
  min-height: 0;
}

.search-input-row {
  display: flex;
  gap: 8px;
}

.search-input {
  flex: 1;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 12px;
  transition: all var(--duration-normal) ease;
}

.search-input:focus {
  outline: none;
  background: var(--input-bg-strong);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--focus-ring);
}

.search-rename {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 10px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: rgba(20, 24, 31, 0.55);
}

.search-rename-header {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: -2px;
}

.search-rename-icon {
  color: var(--accent);
  opacity: 0.8;
  flex-shrink: 0;
}

.search-rename-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.search-rename-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 4px;
  align-items: center;
}

.search-rename-arrow {
  color: var(--muted);
  opacity: 0.5;
  flex-shrink: 0;
}

.search-rename-input {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 7px 9px;
  font-size: 11.5px;
  min-width: 0;
  transition: border-color var(--duration-normal), box-shadow var(--duration-normal);
}

.search-rename-input::placeholder {
  color: var(--muted);
  opacity: 0.55;
  font-size: 11px;
}

.search-rename-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.search-rename-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.search-rename-scopes {
  display: flex;
  gap: 2px;
}

.search-rename-scope {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.search-rename-scope input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.search-rename-scope span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  transition: all var(--duration-normal);
  line-height: 1.4;
}

.search-rename-scope:hover span {
  background: rgba(255, 255, 255, 0.07);
}

.search-rename-scope input:checked + span {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--focus-ring);
}

.search-rename-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px 4px 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-normal), opacity var(--duration-normal);
  line-height: 1.4;
  white-space: nowrap;
  flex-shrink: 0;
}

.search-rename-btn:hover {
  background: color-mix(in srgb, var(--accent) 85%, #fff);
}

.search-rename-btn:active {
  opacity: 0.85;
}

.search-rename-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.search-rename-btn svg {
  flex-shrink: 0;
}

.search-rename-status {
  font-size: 10px;
  color: var(--muted);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

.search-rename-status:empty,
.search-rename-status:not(.is-busy):not(.is-ok):not(.is-error) {
  display: none;
}

.search-rename-status.is-busy {
  color: var(--text);
  background: var(--accent-soft);
}

.search-rename-status.is-ok {
  color: var(--success-text);
  background: rgba(111, 220, 165, 0.08);
}

.search-rename-status.is-error {
  color: var(--danger-text);
  background: rgba(255, 154, 162, 0.08);
}


.search-results {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  padding-bottom: 16px;
  border-top: 1px solid var(--panel-border);
  padding-top: 8px;
}

.search-file-group {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--input-bg);
}

.search-file-header {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--panel-strong);
  border-bottom: 1px solid var(--panel-border);
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-file-count {
  flex: 0 0 auto;
  font-size: 10px;
  color: var(--muted);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 1px 7px;
  background: rgba(255, 255, 255, 0.02);
}

.search-match-item {
  display: grid;
  gap: 2px;
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--panel-border);
  width: 100%;
  text-align: left;
  border-left: none;
  border-right: none;
  border-top: none;
  background: transparent;
  color: var(--muted);
  transition: background var(--duration-fast) ease;
}

.search-match-item:last-child {
  border-bottom: none;
}

.search-match-item:hover {
  background: var(--accent-soft);
  color: var(--text);
}

.search-match-line {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  color: var(--muted);
  opacity: 0.7;
}

.search-match-preview {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-match-highlight {
  background: var(--accent-soft);
  color: var(--text);
  border-radius: 3px;
  padding: 0 1px;
}

.search-empty {
  padding: 18px 8px;
  text-align: center;
  color: var(--muted);
  font-size: 10px;
}

@media (max-width: 320px) {
  .search-rename-fields {
    grid-template-columns: 1fr;
  }

  .search-rename-arrow {
    display: none;
  }
}

/* =============================================================================
   Settings Panel - Modern Redesign
   ============================================================================= */

.settings-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: 12px;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  padding: 0;
}

/* ── Full-screen Settings (feedback-style overlay, side-by-side) ── */
.panel[data-panel="settings"].is-active {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg);
  grid-template-rows: 1fr;
  animation: settingsOverlayIn 0.16s ease;
}
/* The sidebar panel's backdrop-filter would otherwise act as the containing
   block for the fixed settings panel and trap it inside the sidebar column.
   Neutralize it while settings is open (the overlay covers it anyway). */
body[data-active-tab="settings"] .sidebar-panel {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  overflow: visible;
  contain: none;
}
.panel[data-panel="settings"].is-active .panel-header {
  display: none;
}
.panel[data-panel="settings"] .settings-panel {
  flex-direction: row;
  align-items: stretch;
  overflow: hidden;
  padding: 0;
}
.panel[data-panel="settings"] .settings-nav {
  flex: 0 0 248px;
  width: 248px;
  height: 100%;
  overflow-y: auto;
  padding: 88px 16px 24px;
  border-right: 1px solid var(--panel-border);
  gap: 4px;
}
.panel[data-panel="settings"] .settings-pages {
  flex: 1 1 auto;
  height: 100%;
  overflow-y: auto;
  padding: 60px 56px 72px;
}
.panel[data-panel="settings"] .settings-pages .settings-page {
  max-width: 720px;
  margin: 0 auto;
}
.panel[data-panel="settings"] .settings-back {
  display: none;
}
.panel[data-panel="settings"] .settings-page-title {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: 0.01em;
}
.panel[data-panel="settings"] .settings-nav-item.is-active {
  background: rgba(121, 126, 249, 0.12);
}
.panel[data-panel="settings"] .settings-nav-item.is-active .settings-nav-title {
  color: var(--text);
}
.settings-overlay-close {
  position: absolute;
  top: 44px;
  left: 20px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px 0 7px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  -webkit-app-region: no-drag;
  transition: background 0.16s ease, color 0.16s ease;
}
.settings-overlay-close:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}
.settings-overlay-close svg {
  width: 18px;
  height: 18px;
}
@keyframes settingsOverlayIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Settings content: spacious full-width rows (overrides the old narrow,
      container-query card layout used when settings lived in the sidebar) ── */
.panel[data-panel="settings"] .settings-pages {
  flex: 1 1 auto;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  display: block;
}
.panel[data-panel="settings"] .settings-page {
  display: block;
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 44px 104px;
  box-sizing: border-box;
}
.panel[data-panel="settings"] .settings-page-header {
  position: static;
  z-index: auto;
  padding: 0 2px 22px;
}
.panel[data-panel="settings"] .settings-page-title {
  font-size: 27px;
  font-weight: 680;
  letter-spacing: 0.01em;
  color: var(--text);
}
/* Section card */
.panel[data-panel="settings"] .settings-group {
  display: block;
  gap: 0;
  margin: 0 0 20px;
  padding: 2px 24px 8px;
  background: rgba(255, 255, 255, 0.022);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  overflow: hidden;
  container-type: normal;
  animation: none;
}
.panel[data-panel="settings"] .settings-group-title {
  display: block;
  gap: 0;
  margin: 0;
  padding: 16px 0 14px;
  border-bottom: 1px solid var(--panel-border);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}
.panel[data-panel="settings"] .settings-group-title::before {
  display: none;
}
/* Rows: label on the left, control on the right */
.panel[data-panel="settings"] .settings-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 17px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  min-height: 0;
}
.panel[data-panel="settings"] .settings-item:last-child {
  border-bottom: none;
  padding-bottom: 17px;
}
.panel[data-panel="settings"] .settings-item.is-stacked {
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}
.panel[data-panel="settings"] .settings-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 auto;
  min-width: 0;
}
.panel[data-panel="settings"] .settings-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}
.panel[data-panel="settings"] .settings-desc,
.panel[data-panel="settings"] .settings-description,
.panel[data-panel="settings"] .settings-nav-desc,
.panel[data-panel="settings"] .settings-help-text:not([id]),
.panel[data-panel="settings"] .settings-subsection-desc,
.panel[data-panel="settings"] #settings-build-profile-hint {
  display: none;
}
/* Action button rows wrap within the card instead of overflowing. */
.panel[data-panel="settings"] .settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
}
.panel[data-panel="settings"] .settings-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}
.panel[data-panel="settings"] .settings-item .settings-control.settings-inline {
  max-width: 60%;
}
.panel[data-panel="settings"] .settings-control {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}
.panel[data-panel="settings"] .settings-item.is-stacked .settings-control {
  width: 100%;
  justify-content: flex-start;
}
.panel[data-panel="settings"] .settings-select,
.panel[data-panel="settings"] .settings-input {
  min-width: 200px;
  max-width: 300px;
}
.panel[data-panel="settings"] .settings-item.is-stacked .settings-input {
  max-width: none;
  width: 100%;
}
/* Subsections (e.g. verbatim) follow a row that already draws a divider, so drop
   the doubled top border and tighten the gap down to the row's input/buttons. */
.panel[data-panel="settings"] .settings-subsection {
  border-top: none;
  margin-top: 0;
  padding: 18px 0 0;
  gap: 4px;
}
.panel[data-panel="settings"] .settings-subsection + .settings-inline {
  margin-top: 10px;
}

/* Settings Navigation Menu */
.settings-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px;
}

.settings-nav-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  transition: all var(--duration-normal) ease;
  position: relative;
  overflow: hidden;
}

.settings-nav-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.settings-nav-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform var(--duration-normal) ease;
  border-radius: 0 2px 2px 0;
}

.settings-nav-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.settings-nav-item:hover::before {
  transform: scaleY(1);
}

.settings-nav-item:active {
  background: rgba(255, 255, 255, 0.05);
}

.settings-nav-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: color var(--duration-normal) ease;
}

.settings-nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(248, 81, 73, 0.35);
  background: rgba(248, 81, 73, 0.16);
  color: var(--danger-text);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  white-space: nowrap;
}

.settings-nav-item.has-alert {
  border-color: rgba(248, 81, 73, 0.26);
  background: rgba(248, 81, 73, 0.08);
}

/* Account "update available" is positive news, not a warning — show it green
   instead of the red used for runtime-setup alerts. */
#settings-account-attention {
  border-color: rgba(39, 201, 72, 0.4);
  background: var(--success-soft);
  color: var(--success-text);
}

.settings-nav-item[data-settings-target="account"].has-alert {
  border-color: rgba(39, 201, 72, 0.28);
  background: rgba(39, 201, 72, 0.08);
}

.settings-nav-item:hover .settings-nav-title {
  color: var(--accent-strong);
}

.settings-nav-desc {
  font-size: 10px;
  color: var(--muted);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Settings Pages Container */
.settings-pages {
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: settingsPageSlideIn 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes settingsPageSlideIn {
  from {
    opacity: 0;
    transform: translateX(8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes settingsGroupFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.settings-page {
  display: flex;
  flex-direction: column;
}

/* Staggered animation for settings groups */
.settings-page .settings-group {
  animation: settingsGroupFadeIn 0.35s cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
}

.settings-page .settings-group:first-of-type {
  animation-delay: 0.05s;
}

.settings-page .settings-group:nth-of-type(2) {
  animation-delay: 0.12s;
}

.settings-page .settings-group:nth-of-type(3) {
  animation-delay: 0.18s;
}

.settings-page .settings-group:nth-of-type(4) {
  animation-delay: 0.24s;
}

/* Settings Page Header */
.settings-page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  margin: 0;
  padding: 14px 16px 12px;
}

.settings-page-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.settings-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-soft);
  cursor: pointer;
  transition: all var(--duration-normal) ease;
}

.settings-back::before {
  content: "";
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238B949E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M15 18l-6-6 6-6'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--duration-normal) ease;
}

.settings-back:hover {
  background: rgba(255, 255, 255, 0.06);
}

.settings-back:hover::before {
  transform: translateX(-2px);
}

.settings-back:active {
  background: rgba(255, 255, 255, 0.08);
}

/* Settings Page Panel Button Overrides */
.settings-page .panel-button {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--duration-normal) ease, border-color var(--duration-normal) ease, transform var(--duration-fast) ease;
}

.settings-page .panel-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.settings-page .panel-button:active {
  transform: translateY(0) scale(0.98);
}

/* Settings Group - Card Style */
.settings-group {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 16px;
  margin: 8px;
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  container-type: inline-size;
}

.settings-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-group-title::before {
  content: "";
  width: 3px;
  height: 12px;
  background: var(--accent);
  border-radius: 2px;
}

/* Settings Item */
.settings-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 0;
}

.settings-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.settings-item:first-child {
  padding-top: 10px;
}

.settings-item.is-stacked {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.settings-item.is-stacked .settings-control {
  justify-content: flex-start;
  width: 100%;
}

.settings-item.is-stacked .settings-input {
  width: 100%;
  resize: vertical;
}

/* Container query for responsive layout */
@container (max-width: 300px) {
  .settings-item {
    grid-template-columns: 1fr;
    gap: 8px;
    align-items: start;
    padding: 10px 2px;
  }
}

@container (max-width: 300px) {
  .settings-select {
    min-width: 0;
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  .settings-item {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* Settings Label */
.settings-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.settings-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.settings-desc {
  font-size: 11px;
  color: var(--text-soft);
  line-height: 1.5;
  opacity: 0.85;
}

/* Settings Help Text */
.settings-help-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-md);
  margin-top: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-help-text.settings-help-intro {
  margin-top: 0;
  margin-bottom: 14px;
}

.settings-help-text.is-success {
  color: var(--success-text);
  border-color: rgba(125, 211, 139, 0.35);
  background: rgba(125, 211, 139, 0.08);
}

.settings-help-text.is-warning {
  color: var(--warning-text);
  border-color: rgba(255, 211, 138, 0.35);
  background: rgba(255, 211, 138, 0.08);
}

.settings-help-text.is-error {
  color: var(--danger-text);
  border-color: rgba(255, 155, 155, 0.35);
  background: rgba(255, 155, 155, 0.08);
}

.settings-runtime-setup-status {
  font-weight: 500;
}

.settings-runtime-onboarding {
  font-weight: 500;
  margin-top: 10px;
}

/* Settings Subsection */
.settings-subsection {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 6px;
}

.settings-subsection-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.settings-subsection-desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

/* Settings Control */
.settings-control {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
}

/* Project panel: keep controls readable in narrow side panes */
.panel[data-panel="project"] .settings-item {
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
}

.panel[data-panel="project"] .settings-control {
  justify-content: flex-start;
  width: 100%;
  flex-wrap: wrap;
}

.panel[data-panel="project"] #settings-root-select {
  flex: 1 1 220px;
  min-width: 0;
  max-width: 100%;
}

.panel[data-panel="project"] #settings-workspace {
  width: 100%;
}

@container (max-width: 520px) {
  .panel[data-panel="project"] #settings-root-select {
    flex-basis: 100%;
  }

  .panel[data-panel="project"] #settings-root-auto {
    width: 100%;
  }
}

/* Settings Select */
.settings-select {
  width: 100%;
  min-width: 0;
  max-width: 240px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.15s ease;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B949E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

.settings-select:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.settings-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

/* Settings Inline Layout */
.settings-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  width: 100%;
}

/* Add breathing room when inline buttons are direct children of a group card */
.settings-group > .settings-inline {
  margin-top: 14px;
}

.settings-inline-wrap {
  flex-wrap: wrap;
}

.settings-inline-compact {
  justify-content: flex-end;
}

/* Update progress bar */
.settings-update-progress {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  margin-top: 14px;
}

.settings-update-progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #7aa2ff);
  border-radius: 999px;
  transition: width 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Version badge (used in update section) */
.settings-version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-family: "SF Mono", Menlo, monospace;
  font-weight: 600;
  color: var(--text-soft);
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.settings-version-badge.is-new {
  color: var(--accent-strong);
  border-color: var(--accent-soft-strong);
  background: var(--accent-soft);
}

/* Settings Input */
.settings-input {
  width: 100%;
  min-width: 0;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.15s ease;
}

.settings-input.is-compact {
  max-width: 80px;
  text-align: center;
  font-family: "SF Mono", Menlo, monospace;
  font-weight: 600;
  font-size: 13px;
  padding: 8px 10px;
}

.settings-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

/* Settings Unit Label */
.settings-unit {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  font-weight: 500;
}

/* Disabled States */
.settings-item.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.settings-item.is-disabled .settings-input {
  pointer-events: none;
}

[data-ghost-config].is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Settings Path Display */
.settings-path {
  color: var(--text-soft);
  font-size: 12px;
  font-family: "SF Mono", Menlo, monospace;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  max-width: 100%;
  white-space: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  word-break: normal;
  overflow-wrap: normal;
  line-height: 1.4;
  user-select: text;
  transition: all 0.2s ease;
}

.settings-path:not(:empty):hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.3);
}

/* Settings Toggle Button */
.settings-toggle {
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--duration-normal) ease;
}

.settings-toggle.is-on {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
}

/* =============================================================================
   Premium Toggle Switch
   ============================================================================= */

.settings-switch {
  display: inline-flex;
  align-items: center;
}

.settings-switch-input {
  appearance: none;
  width: 44px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.25);
  position: relative;
  cursor: pointer;
  transition: all var(--duration-normal) ease;
}

.settings-switch-input::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: all var(--duration-normal) ease;
}

.settings-switch-input:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.settings-switch-input:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.settings-switch-input:checked::after {
  transform: translateX(20px);
}

.settings-switch-input:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.settings-switch-track {
  display: none;
}

/* =============================================================================
   Environment Status Badges - Modern Style
   ============================================================================= */

.env-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  justify-self: start;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.env-badge.ok {
  color: var(--success-text);
  background: rgba(125, 211, 168, 0.1);
  border-color: rgba(125, 211, 168, 0.25);
}

.env-badge.error {
  color: var(--danger-text);
  background: var(--danger-faint);
  border-color: var(--danger-border);
}

.env-badge.checking {
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-color: var(--accent-soft-strong);
  animation: envBadgePulse 1.5s ease-in-out infinite;
}

.env-badge.checking::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: envBadgeSpin 0.8s linear infinite;
}

.settings-item.env-item .settings-control {
  justify-content: flex-start;
  flex-wrap: wrap;
  row-gap: 8px;
}

@container (max-width: 520px) {
  .settings-item.env-item .settings-control {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 10px;
  }

  .settings-item.env-item .env-btn {
    width: 100%;
  }
}

@keyframes envBadgePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes envBadgeSpin {
  to { transform: rotate(360deg); }
}

/* =============================================================================
   Environment screen — status-first, one-click setup
   ============================================================================= */

.panel[data-panel="settings"] .settings-group.env-group {
  padding: 18px 24px;
}

.env-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.env-hero-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
}

.env-hero-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.env-hero-title {
  font-size: 15px;
  font-weight: 650;
  line-height: 1.35;
  color: var(--text);
}

.env-hero-sub {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-soft);
}

.env-hero.is-checking,
.env-hero.is-installing {
  border-color: var(--accent-soft-strong);
  background: var(--accent-soft);
}
.env-hero.is-ready {
  border-color: rgba(125, 211, 168, 0.3);
  background: rgba(125, 211, 168, 0.08);
}
.env-hero.is-ready .env-hero-icon {
  background: rgba(125, 211, 168, 0.16);
}
.env-hero.is-missing {
  border-color: rgba(255, 211, 138, 0.32);
  background: rgba(255, 211, 138, 0.08);
}
.env-hero.is-missing .env-hero-icon {
  background: rgba(255, 211, 138, 0.16);
}

.env-hero.is-checking .env-hero-icon::before,
.env-hero.is-installing .env-hero-icon::before {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--accent-strong);
  border-top-color: transparent;
  animation: envBadgeSpin 0.8s linear infinite;
}
.env-hero.is-ready .env-hero-icon::before {
  content: "";
  width: 22px;
  height: 22px;
  background: var(--success-text);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
}
.env-hero.is-missing .env-hero-icon::before {
  content: "";
  width: 22px;
  height: 22px;
  background: var(--warning-text);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 8v5'/%3E%3Cpath d='M12 16h.01'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 8v5'/%3E%3Cpath d='M12 16h.01'/%3E%3C/svg%3E") center / contain no-repeat;
}

.panel[data-panel="settings"] .env-setup-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  height: 40px;
  padding: 0 22px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.12s ease;
}
.panel[data-panel="settings"] .env-setup-btn:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  transform: translateY(-1px);
}
.panel[data-panel="settings"] .env-setup-btn:active {
  transform: translateY(0) scale(0.99);
}
.panel[data-panel="settings"] .env-setup-btn:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.env-install-note {
  margin-top: 12px;
}

.env-explainer {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-soft);
}

.env-link {
  display: inline;
  margin-left: 4px;
  padding: 0;
  background: none;
  border: none;
  font: inherit;
  color: var(--accent-strong);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.env-link:hover {
  color: var(--accent);
}

.env-progress {
  margin-top: 14px;
}
.env-progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.env-progress-fill {
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #7aa2ff);
  transition: width 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.env-progress-label {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-soft);
  font-variant-numeric: tabular-nums;
}

.is-hidden {
  display: none !important;
}

/* =============================================================================
   Environment Registry - Modern Card Style
   ============================================================================= */

.env-registry {
  display: grid;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.15);
}

.env-registry-add {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.env-registry-add .env-registry-input {
  flex: 1 1 120px;
  min-width: 0;
}

.env-registry-add .env-registry-select {
  flex: 0 0 auto;
}

.env-registry-add .panel-button {
  flex: 0 0 auto;
}

.env-registry-input,
.env-registry-select {
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  transition: all 0.2s ease;
}

.env-registry-input:focus,
.env-registry-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.env-registry-hint {
  font-size: 11px;
  color: var(--muted);
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(255, 255, 255, 0.08);
}

.env-registry-lists {
  display: grid;
  gap: 16px;
}

.env-registry-section {
  display: grid;
  gap: 8px;
}

.env-registry-title {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
  font-weight: 600;
}

.env-registry-list {
  display: grid;
  gap: 6px;
  max-height: 220px;
  overflow: auto;
  padding-right: 4px;
}

.env-registry-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease;
}

.env-registry-row:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.env-registry-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.env-registry-name {
  font-size: 12px;
  font-family: "SF Mono", Menlo, monospace;
  color: var(--text);
}

.env-registry-meta {
  font-size: 10px;
  color: var(--muted);
}

.env-registry-flag {
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warning);
  background: var(--warning-soft);
  border-radius: 999px;
  padding: 2px 6px;
}

.env-registry-flag.is-custom {
  color: var(--accent-strong);
  background: var(--accent-soft-strong);
}

.env-registry-spacer {
  min-width: 28px;
}

.outline-empty {
  font-size: 11px;
  color: var(--muted);
}

.outline-empty.is-hidden {
  display: none;
}

.outline-section {
  display: block;
  margin-top: 10px;
}

.outline-section:first-of-type {
  margin-top: 0;
}

.outline-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  -webkit-user-select: none;
  user-select: none;
}

.outline-section-title::-webkit-details-marker {
  display: none;
}

.outline-section-title::before {
  content: "▸";
  display: inline-block;
  transition: transform 0.15s ease;
}

.outline-section[open] .outline-section-title::before {
  transform: rotate(90deg);
}

.outline-list {
  display: flex;
  flex-direction: column;
  gap: 2px; /* Tighter spacing like a TOC */
  padding-left: 16px;
  margin-top: 6px;
  border-left: 1px solid var(--panel-border); /* Vertical guide line */
}

.outline-item {
  border: none; /* Remove block borders */
  background: transparent;
  color: var(--text-soft);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 6px;
  transition: all 0.1s ease;
  position: relative;
}

/* Hierarchy indentation */
.outline-item[data-level="1"] { padding-left: 8px; }
.outline-item[data-level="2"] { padding-left: 20px; font-size: 11px; }
.outline-item[data-level="3"] { padding-left: 32px; font-size: 11px; color: var(--muted); }

.outline-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.outline-item-meta {
  display: none;
}

#outline-mode-current.is-active,
#outline-mode-project.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.outline-item.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 500;
}

.outline-item[data-kind="todo"] {
  color: var(--warning-text);
}

.outline-item[data-kind="todo"]::before {
  content: "☐";
  font-size: 10px;
  opacity: 0.7;
}

.outline-item[data-kind="figure"] {
  color: var(--accent);
}

.outline-item[data-kind="figure"]::before {
  content: "▣";
  font-size: 9px;
  opacity: 0.6;
}

.outline-item[data-kind="table"] {
  color: #76CC7A;
}

.outline-item[data-kind="table"]::before {
  content: "⊞";
  font-size: 9px;
  opacity: 0.6;
}

.outline-meta {
  font-size: 10px;
  color: var(--muted);
  opacity: 0.7;
}

.panel-placeholder {
  color: var(--muted);
  font-size: 12px;
}

.workspace-label {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-tree {
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

.file-tree.is-drop-target {
  outline: 1px dashed rgba(92, 156, 255, 0.5);
  outline-offset: -4px;
  background: rgba(92, 156, 255, 0.06);
}

.file-folder-children.is-drop-target {
  background: rgba(92, 156, 255, 0.08);
  border-radius: var(--radius-sm);
}

.panel-actions {
  display: flex;
  justify-content: flex-end;
}

.file-folder {
  display: block;
  color: var(--muted);
}

.file-folder summary {
  list-style: none;
  cursor: pointer;
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  -webkit-user-select: none;
  user-select: none;
  position: relative;
}

.file-folder summary.is-selected {
  background: rgba(92, 156, 255, 0.12);
  color: var(--text);
}

.file-folder summary.is-drop-target {
  background: rgba(92, 156, 255, 0.2);
  border: 1px dashed rgba(92, 156, 255, 0.5);
}

.file-folder summary::-webkit-details-marker {
  display: none;
}

.file-folder summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 6px;
  transform: rotate(0deg);
  transition: transform var(--duration-normal) ease;
}

.file-folder summary.is-open::before {
  transform: rotate(90deg);
}

.file-folder-children {
  display: grid;
  gap: 0;
  padding-left: 16px;
  margin-left: 4px;
  position: relative;
}

.file-folder-children::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--accent-soft);
}

.file-item {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  padding: 3px 6px 3px 18px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  position: relative;
}

.file-folder summary::after,
.file-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 6px; /* Shorter line */
  height: 1px;
  background: var(--panel-border-strong);
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0.5; /* Subtle */
}

.file-item.is-dragging,
.file-folder summary.is-dragging {
  opacity: 0.5;
  background: var(--panel-muted);
}

.file-item.is-active {
  background: rgba(92, 156, 255, 0.25); /* Stronger, blue-ish highlight */
  color: #fff; /* White text for contrast */
  font-weight: 500;
  box-shadow: 0 0 10px rgba(92, 156, 255, 0.1); /* Subtle glow */
}

.file-item.is-drop-target {
  background: var(--accent-soft);
  border: 1px dashed var(--accent);
}

.file-item.is-dirty::after {
  content: "●";
  margin-left: 6px;
  font-size: 9px;
  color: var(--accent);
}

.tab-group {
  display: grid;
  gap: 3px;
}

.tab-group.secondary {
  opacity: 0.75;
}

.tab {
  position: relative;
  border: 1px solid transparent;
  background: transparent;
  padding: 6px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
}

.tab.is-dragging {
  opacity: 0.5;
  background: var(--panel-muted);
}

.tab.is-drop-target {
  color: var(--text);
}

.tab.is-drop-target::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.tab.is-drop-target[data-drop-position="before"]::after {
  top: 2px;
}

.tab.is-drop-target[data-drop-position="after"]::after {
  bottom: 2px;
}

.tab-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tab-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tab-label {
  display: none;
}

.tab.is-active {
  color: var(--text);
  background: rgba(92, 156, 255, 0.08);
}

.tab.is-alert {
  color: var(--danger-text);
  background: rgba(248, 81, 73, 0.14);
  box-shadow: inset 0 0 0 1px rgba(248, 81, 73, 0.35);
}

.tab.is-alert::after {
  content: "";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--danger);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.35);
}

.tab:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.tab.is-alert:hover {
  color: var(--danger-text);
  background: rgba(248, 81, 73, 0.2);
}

.tab:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.tab.is-active::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.editor {
  display: grid;
  grid-template-rows: 1fr auto auto;
  min-height: 0;
  background: linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 35%);
  position: relative;
}

.editor.has-bottom-panel {
  grid-template-rows: minmax(120px, var(--editor-main-height, 1fr)) auto minmax(120px, var(--bottom-panel-height, 220px));
}

.editor-groups {
  --split-min: 96px;
  --split-handle: 8px;
  --split-primary: 1fr;
  --split-secondary: 1fr;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-height: 0;
  height: 100%;
  position: relative;
}

.editor-groups[data-split="true"] {
  grid-template-columns:
    minmax(var(--split-min), var(--split-primary))
    var(--split-handle)
    minmax(var(--split-min), var(--split-secondary));
}


.editor-splitter {
  position: relative;
  min-width: var(--split-handle);
  cursor: col-resize;
  background: transparent;
  z-index: 2;
}

.editor-splitter::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: var(--panel-border);
  transition: background 0.2s ease;
}

.editor-groups.is-resizing .editor-splitter::before,
.editor-splitter:hover::before {
  background: var(--panel-border-strong);
}

.editor-group {
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  min-height: 0;
  position: relative;
}

.editor-groups[data-split="false"] .editor-group.is-secondary {
  display: none;
}

.editor-groups[data-split="false"] .editor-splitter {
  display: none;
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
}

.editor-tabs {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0;
  min-height: 34px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  position: relative;
}

#save-button,
#format-button,
#synctex-button,
#update-button,
#build-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  margin: 0;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0 8px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  transition:
    background-color 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease,
    box-shadow 0.16s ease,
    transform 0.12s ease;
}

#save-button,
#format-button,
#synctex-button {
  border-color: var(--panel-border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-soft);
}

#save-button,
#format-button,
#synctex-button {
  color: var(--text);
}

#save-button {
  gap: 4px;
  letter-spacing: 0.06em;
}

#format-button {
  letter-spacing: 0.08em;
}

#synctex-button {
  letter-spacing: 0.06em;
}

#save-button:hover,
#format-button:hover,
#synctex-button:hover {
  color: var(--text);
  border-color: var(--panel-border-strong);
  background: rgba(255, 255, 255, 0.08);
}

#save-button:active,
#format-button:active,
#synctex-button:active {
  transform: translateY(1px);
}

#editor-split-button.is-active {
  color: var(--text);
}

#save-button:focus-visible,
#format-button:focus-visible,
#synctex-button:focus-visible,
#update-button:focus-visible,
#build-button:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.editor-tabs-list {
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  flex: 1;
  min-width: 0;
  scrollbar-width: none;
  position: relative;
  z-index: 1;
}

.editor-tabs-list.is-empty {
  display: none;
}

.editor-tabs-list::-webkit-scrollbar {
  display: none;
}

.editor-tab-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  padding: 0 6px;
  position: relative;
  z-index: 3;
  background: var(--panel);
  flex-shrink: 0;
}

.editor-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 100px;
  max-width: 100px;
  border: 1px solid var(--panel-border);
  border-top-width: 2px;
  border-bottom-color: var(--panel-border);
  background: var(--panel);
  color: var(--text-soft);
  border-radius: 0;
  padding: 0 12px;
  font-size: 11px;
  cursor: pointer;
  margin-bottom: -1px;
  position: relative;
  height: 100%;
  overflow: hidden;
}

.editor-tab + .editor-tab {
  margin-left: -1px;
}

.editor-tab.is-active {
  border-color: var(--panel-border-strong);
  border-top-color: var(--accent);
  border-bottom-color: var(--bg);
  background: var(--bg);
  color: var(--text);
  z-index: 1;
}

.editor-tab:hover {
  color: var(--text);
  border-color: var(--panel-border-strong);
}

#build-button {
  width: 30px;
  padding: 0;
  margin-left: 2px;
  border-color: rgba(121, 126, 249, 0.45);
  background: rgba(121, 126, 249, 0.18);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px rgba(121, 126, 249, 0.24);
  z-index: 4;
}

#update-button {
  order: -1;
  gap: 6px;
  min-width: 54px;
  padding: 0 10px;
  margin-left: 0;
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  z-index: 4;
}

.update-button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.update-button-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: build-spin 0.8s linear infinite;
}

#update-button:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.22);
}

#update-button:active {
  transform: translateY(1px);
}

#update-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

#update-button.is-attention {
  border-color: rgba(121, 126, 249, 0.65);
  background: linear-gradient(
    90deg,
    rgba(121, 126, 249, 0.26),
    rgba(255, 79, 216, 0.18)
  );
  color: var(--accent-strong);
  box-shadow:
    0 0 0 1px rgba(121, 126, 249, 0.24),
    0 0 18px rgba(121, 126, 249, 0.18);
  animation: pulse 1.2s ease-in-out infinite;
}

#update-button.is-busy {
  cursor: default;
  animation: none;
}

#update-button.is-busy .update-button-icon {
  display: none;
}

#update-button.is-busy .update-button-spinner {
  display: inline-block;
}

.build-button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.build-button-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: build-spin 0.8s linear infinite;
}

#save-file-button {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--text-soft);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  height: 32px;
  margin: 2px 0;
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.2s ease;
}

#save-file-button:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--panel-border-strong);
  color: var(--text);
}

#save-file-button:active {
  transform: translateY(1px);
}

#build-button svg {
  fill: currentColor;
  width: 16px;
  height: 16px;
}

#build-button:hover {
  background: rgba(121, 126, 249, 0.28);
  border-color: rgba(162, 167, 252, 0.65);
  color: var(--accent-strong);
}

#build-button:active {
  background: rgba(121, 126, 249, 0.34);
  transform: translateY(1px);
}

#synctex-button:disabled {
  color: var(--muted);
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

#synctex-button:disabled:hover {
  border-color: var(--panel-border);
  background: rgba(255, 255, 255, 0.02);
}

#build-button.is-busy {
  color: var(--accent-strong);
  cursor: default;
}

@keyframes build-spin {
  to {
    transform: rotate(360deg);
  }
}

#build-button.is-busy .build-button-icon {
  display: none;
}

#build-button.is-busy .build-button-spinner {
  display: inline-block;
}

@keyframes pulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.editor-tab-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.editor-tab.is-dirty .editor-tab-label::after {
  content: "●";
  font-size: 9px;
  color: var(--accent);
}

.editor-tab-close {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  padding: 4px;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  margin-right: -4px;
}

.editor-tab-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.editor-status {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.editor-surface {
  position: relative;
  background: var(--bg);
  min-height: 0;
  overflow: hidden;
}


.editor-host {
  position: absolute;
  inset: 0;
}

.editor-host.is-hidden {
  visibility: hidden;
}

.editor-viewer {
  position: absolute;
  inset: 0;
  display: none;
  z-index: 2;
  background: var(--bg);
}

.editor-viewer.is-visible {
  display: grid;
}

.editor-viewer-body {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: 16px;
}

.editor-viewer-media {
  display: none;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.editor-viewer-image {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.editor-viewer-pdf {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-sm);
}

.editor-viewer-message {
  display: none;
  max-width: 420px;
  text-align: center;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  background: var(--panel-strong);
  color: var(--text);
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.35);
}

.editor-viewer-message h2 {
  font-size: 16px;
  margin: 0 0 8px;
}

.editor-viewer-message p {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.editor-viewer[data-view="image"] .editor-viewer-image,
.editor-viewer[data-view="pdf"] .editor-viewer-pdf,
.editor-viewer[data-view="unsupported"] .editor-viewer-message {
  display: block;
}

.editor-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  max-width: 520px;
  text-align: center;
  padding: 28px;
  margin: 0 auto;
  pointer-events: none;
}

.editor-placeholder h1 {
  font-size: 18px;
  margin: 0 0 8px;
  font-weight: 600;
}

.editor-placeholder p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.editor-placeholder .hint {
  font-size: 12px;
  color: var(--text-soft);
  background: var(--control-bg);
  border-radius: 999px;
  padding: 6px 12px;
  display: inline-block;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
}

body.has-editor .editor-group:not(.is-empty) .editor-placeholder {
  opacity: 0;
}

.pill.is-active {
  border-color: var(--focus-ring);
  background: var(--accent-soft);
  color: var(--text);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 11, 16, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: min(400px, 90vw);
  background: var(--panel-strong, #1c242e);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  display: grid;
  gap: 18px;
  transform: translateY(10px) scale(0.97);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease;
}

.modal.is-open .modal-card {
  transform: translateY(0) scale(1);
}

.diff-modal-card {
  padding: 0;
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius-lg); /* Increased radius */
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45); /* Stronger shadow */
  background: var(--panel-strong); /* Ensure panel background */
}

/* Announcement modal lives at body level (outside .app) so the launcher's
   `opacity: 0` cascade doesn't hide it. Still needs z-index above the
   launcher overlay (which is z-index: 20). */
#announcement-modal {
  z-index: 40;
}

.announcement-card {
  width: min(720px, 94vw);
  padding: 44px 52px 36px;
  gap: 26px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at top right, rgba(162, 167, 252, 0.13) 0%, transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(121, 126, 249, 0.07) 0%, transparent 55%),
    linear-gradient(180deg, rgba(28, 36, 46, 1) 0%, rgba(20, 25, 32, 1) 100%);
  border: 1px solid rgba(121, 126, 249, 0.22);
  border-radius: 18px;
  box-shadow:
    0 32px 80px -12px rgba(0, 0, 0, 0.6),
    0 0 80px -16px rgba(121, 126, 249, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.announcement-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(121, 126, 249, 0.6) 25%,
    rgba(162, 167, 252, 0.95) 50%,
    rgba(121, 126, 249, 0.6) 75%,
    transparent 100%
  );
}

.announcement-card::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(162, 167, 252, 0.18) 0%, transparent 65%);
  pointer-events: none;
}

.announcement-card .announcement-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  background: linear-gradient(180deg, #ffffff 0%, #c9d1d9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
}

.announcement-card .announcement-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
  white-space: pre-wrap;
  margin-top: -6px;
}

.announcement-input {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.announcement-input.is-hidden {
  display: none;
}

.announcement-input textarea {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.announcement-input textarea::placeholder {
  color: rgba(201, 209, 217, 0.4);
}

.announcement-input textarea:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.announcement-status {
  font-size: 12.5px;
  color: var(--text-soft);
  min-height: 18px;
  letter-spacing: 0.01em;
}

.announcement-status.is-error {
  color: #f87171;
}

.announcement-status.is-success {
  color: #7dd38b;
}

.announcement-card .modal-actions {
  margin-top: 6px;
  gap: 12px;
}

.announcement-card #announcement-modal-submit {
  position: relative;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  border: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 30px;
  border-radius: 10px;
  letter-spacing: 0.02em;
  box-shadow:
    0 6px 16px -4px rgba(121, 126, 249, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease,
    filter 0.2s ease;
}

.announcement-card #announcement-modal-submit:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.08);
  box-shadow:
    0 10px 24px -4px rgba(121, 126, 249, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.announcement-card #announcement-modal-submit:active:not(:disabled) {
  transform: translateY(0);
}

.announcement-card #announcement-modal-submit:disabled {
  opacity: 0.55;
  cursor: default;
}

.announcement-card #announcement-modal-close {
  font-size: 14px;
  padding: 12px 22px;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.diff-modal-header {
  align-items: flex-start;
  padding: 24px 32px 20px; /* Increased padding */
  border-bottom: 1px solid var(--panel-border-strong);
  background: var(--panel-header); /* Use variable */
}

.diff-header-left {
  display: grid;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.diff-title {
  font-size: 16px; /* Larger title */
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 4px; /* Space below title */
}

.diff-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
  min-width: 0;
}

.diff-file {
  font-family: "SF Mono", Menlo, Monaco, monospace;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.diff-header-actions {
  display: flex;
  align-items: center;
  gap: 12px; /* Increased gap */
}

.diff-header-actions .panel-button {
  padding: 8px 16px; /* Larger touch target */
  font-size: 13px;
  border-radius: var(--radius-sm);
  min-width: 80px; /* Consistent width */
  justify-content: center;
}

#diff-modal-cancel {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
}

#diff-modal-cancel:hover {
  background: var(--control-bg);
  color: var(--text);
}

#diff-modal-submit {
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  border: none;
  box-shadow: 0 2px 8px rgba(121, 126, 249, 0.3);
}

#diff-modal-submit:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(121, 126, 249, 0.4);
}

#diff-modal-submit:active {
  transform: translateY(0);
}

.diff-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
}

.diff-summary-item {
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.diff-summary-item.is-add {
  background: rgba(73, 194, 120, 0.2);
  color: var(--success-text);
}

.diff-summary-item.is-del {
  background: var(--danger-soft);
  color: var(--danger-text);
}

.modal-subtitle {
  font-size: 12px;
  color: var(--muted);
  margin-top: -12px;
}

.modal-body {
  display: grid;
  gap: 14px;
}

.diff-modal-body {
  border-top: none; /* Removed double border visual */
  padding: 0 32px 32px; /* Side padding matches header */
  background: var(--panel-header); /* Extend background down */
  display: flex;
  flex-direction: column;
}

.block-diff-container {
  height: min(75vh, 720px);
  background: var(--bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border-strong);
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ── Multi-file diff (Pattern B vertical concat) ── */
.multi-diff-scroll {
  height: 100%;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.multi-diff-section {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}
.multi-diff-monaco {
  width: 100%;
  min-height: 60px;
}
.multi-diff-file-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.multi-diff-file-name {
  font-family: "SF Mono", Menlo, Monaco, monospace;
  font-size: 12px;
  color: var(--text);
}

.modal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
}

.modal-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.modal-path {
  max-width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: right;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  font-family: "SF Mono", Menlo, Monaco, monospace;
}

.modal-field {
  display: grid;
  gap: 6px;
}

.modal-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  font-family: inherit;
  transition: all 0.15s ease;
}

.modal-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.modal-help {
  min-height: 16px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.modal-help:empty {
  display: none;
}

.modal-help.is-error {
  color: var(--danger-text, #ff6b6b);
  background: rgba(248, 81, 73, 0.08);
  border-color: rgba(248, 81, 73, 0.2);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 4px;
}

.modal-actions .panel-button {
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  min-width: 72px;
  justify-content: center;
  transition: all 0.15s ease;
}

.context-menu {
  position: fixed;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease;
  z-index: 12;
}

.context-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.context-menu-panel {
  position: absolute;
  min-width: 220px;
  padding: 6px;
  border-radius: var(--radius-md);
  background: var(--bg-accent);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.35);
  display: grid;
  gap: 2px;
}

.context-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
}

.context-menu-item:hover {
  background: var(--accent-soft);
}

.context-menu-item.is-danger {
  color: var(--danger);
}

.context-menu-item:disabled {
  opacity: 0.5;
  cursor: default;
}

.context-menu-shortcut {
  font-size: 10px;
  color: var(--muted);
}

.context-menu-separator {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 4px 0;
}

.issues-panel-body {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 8px;
  height: 100%;
  min-height: 0;
}

.issues-log {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  background: var(--panel-strong);
  padding: 8px 10px;
  color: var(--text-soft);
  font-size: 11px;
}

.issues-log-summary {
  cursor: pointer;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.issues-log-content {
  margin: 8px 0 0;
  max-height: 220px;
  overflow: auto;
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  line-height: 1.5;
  white-space: pre-wrap;
  color: var(--text-soft);
}

.issues-empty {
  padding: 16px;
  font-size: 12px;
  color: var(--muted);
}

.issues-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px 14px;
  overflow: auto;
  height: 100%;
}

.issue-item {
  text-align: left;
  border: 1px solid var(--panel-border);
  border-left-width: 4px;
  border-radius: var(--radius-md);
  background: var(--bg-accent);
  padding: 11px 12px;
  display: grid;
  gap: 8px;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.issue-item:hover {
  border-color: rgba(148, 163, 184, 0.55);
  background: rgba(38, 46, 56, 0.72);
  transform: translateY(-1px);
}

.issue-item[data-severity="error"] {
  border-left-color: var(--danger);
  border-color: rgba(248, 81, 73, 0.35);
  background: rgba(248, 81, 73, 0.12);
}

.issue-item[data-severity="warning"] {
  border-left-color: var(--warning);
  border-color: rgba(210, 153, 34, 0.28);
  background: rgba(210, 153, 34, 0.1);
}

.issue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-soft);
}

.issue-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.issue-badge-error {
  background: var(--danger-soft);
  color: var(--danger-text);
}

.issue-badge-warning {
  background: var(--warning-soft);
  color: var(--warning-text);
}

.issue-location {
  color: var(--text-soft);
  font-family: "SF Mono", Menlo, monospace;
  overflow-wrap: anywhere;
}

.issue-message {
  font-size: 13px;
  line-height: 1.45;
  color: var(--text);
  font-weight: 500;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.issue-extra {
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  padding-top: 6px;
  display: grid;
  gap: 3px;
}

.issue-resolution {
  font-size: 11px;
  line-height: 1.45;
  color: var(--text-soft);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.issue-hintline {
  font-size: 11px;
  color: var(--text-soft);
}

.issue-item[data-action="open-runtime"] .issue-hintline {
  color: var(--accent-strong);
  font-weight: 600;
}

.issue-item:disabled {
  cursor: default;
  opacity: 0.7;
}

.issue-item:disabled:hover {
  border-color: var(--panel-border);
  background: var(--bg-accent);
  transform: none;
}

.monaco-editor .issue-line-highlight {
  background: rgba(248, 81, 73, 0.24);
  box-shadow: inset 3px 0 0 rgba(248, 81, 73, 0.92);
}

.monaco-editor .issue-line-warning {
  background: rgba(210, 153, 34, 0.2);
  box-shadow: inset 3px 0 0 rgba(210, 153, 34, 0.9);
}

.monaco-editor .jump-line-highlight {
  background: var(--accent-soft);
}

.monaco-editor .synctex-reverse-highlight {
  background: rgba(100, 180, 255, 0.18);
  box-shadow: inset 3px 0 0 rgba(100, 180, 255, 0.7);
}

.monaco-editor .detected-block-highlight {
  background: transparent;
  border-radius: 3px;
}

.monaco-editor .detected-block-glyph {
  position: relative;
}

.monaco-editor .detected-block-glyph::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #E3B341;
  box-shadow: 0 0 0 2px rgba(210, 153, 34, 0.22);
}

/* ═══════════════════════════════════════════════════════════════
   AI Panel — Minimal Copilot
   ═══════════════════════════════════════════════════════════════ */

.ai-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* ── Top Bar ────────────────────────────────────────────── */
.ai-topbar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.015);
}
.ai-topbar-title {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.ai-topbar-status {
  font-size: 10px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
  flex-shrink: 1;
  min-width: 0;
  opacity: 0.75;
}
.ai-topbar-status:empty {
  display: none;
}
.ai-topbar-auth.panel-button {
  min-height: 26px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  line-height: 1;
}
/* ── Usage Meter (circular ring + hover tooltip) ──── */
.ai-usage-meter {
  --ai-usage-pct: 0;
  --ai-remaining-pct: 100;
  --ai-usage-fg: rgba(99, 102, 241, 0.95);
  width: 16px;
  height: 16px;
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  cursor: default;
  background: conic-gradient(
    var(--ai-usage-fg) calc(var(--ai-remaining-pct) * 1%),
    rgba(255, 255, 255, 0.08) 0
  );
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.ai-usage-meter::before {
  content: "";
  position: absolute;
  inset: 2.5px;
  border-radius: inherit;
  background: rgba(12, 15, 22, 0.95);
}
.ai-usage-meter:hover {
  transform: scale(1.08);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}
.ai-usage-meter-text {
  display: none;
}
.ai-usage-meter-bar {
  display: none;
}
.ai-usage-meter.is-warn {
  --ai-usage-fg: rgba(245, 158, 11, 0.95);
}
.ai-usage-meter.is-critical {
  --ai-usage-fg: rgba(239, 68, 68, 0.95);
}

/* ── Hover Tooltip ──── */
.ai-usage-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  right: -8px;
  min-width: 180px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: rgba(15, 18, 25, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 20;
  pointer-events: none;
}
.ai-usage-meter:hover .ai-usage-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.ai-usage-tooltip-header {
  font-size: 11px;
  font-weight: 700;
  color: rgba(226, 232, 240, 0.6);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ai-usage-tooltip-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 3px 0;
}
.ai-usage-tooltip-label {
  font-size: 12px;
  color: rgba(226, 232, 240, 0.65);
}
.ai-usage-tooltip-value {
  font-size: 12px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.92);
  font-variant-numeric: tabular-nums;
}
.ai-usage-tooltip-bar-track {
  margin-top: 8px;
  width: 100%;
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
.ai-usage-tooltip-bar-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--ai-usage-fg);
  width: calc(var(--ai-remaining-pct) * 1%);
  transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.ai-icon-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  transition: all var(--duration-normal) ease;
  flex-shrink: 0;
}
.ai-icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

/* ── Model picker (topbar dropdown) ─────────────────────── */
/* Static so the menu anchors to .ai-topbar (full panel width), letting us cap
   the menu to the panel and avoid the .ai-panel overflow:hidden clip. */
.ai-model-picker {
  position: static;
  flex-shrink: 0;
}
.ai-model-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 23px;
  max-width: 132px;
  padding: 0 5px 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
}
.ai-model-trigger:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.14);
}
.ai-model-picker.is-open .ai-model-trigger {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(99, 102, 241, 0.45);
}
.ai-model-trigger-label {
  overflow: hidden;
  text-overflow: ellipsis;
}
.ai-model-trigger-caret {
  flex-shrink: 0;
  opacity: 0.5;
  transition: transform var(--duration-fast) ease, opacity var(--duration-fast) ease;
}
.ai-model-trigger:hover .ai-model-trigger-caret {
  opacity: 0.8;
}
.ai-model-picker.is-open .ai-model-trigger-caret {
  transform: rotate(180deg);
  opacity: 0.9;
}
.ai-model-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 8px;
  min-width: 0;
  max-width: calc(100% - 16px);
  padding: 4px;
  border-radius: var(--radius-md);
  background: rgba(15, 18, 25, 0.94);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px) scale(0.98);
  transform-origin: top left;
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
  z-index: 30;
}
.ai-model-picker.is-open .ai-model-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.ai-model-menu-item {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  width: 100%;
  padding: 6px 8px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  color: var(--text-soft);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}
.ai-model-menu-item + .ai-model-menu-item {
  margin-top: 1px;
}
.ai-model-menu-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}
.ai-model-menu-item.is-selected {
  background: rgba(99, 102, 241, 0.1);
}
.ai-model-menu-check {
  flex-shrink: 0;
  margin-top: 1px;
  color: rgba(129, 140, 248, 0.95);
  opacity: 0;
  transition: opacity var(--duration-fast) ease;
}
.ai-model-menu-item.is-selected .ai-model-menu-check {
  opacity: 1;
}
.ai-model-menu-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.ai-model-menu-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
  white-space: nowrap;
}
.ai-model-menu-desc {
  font-size: 10px;
  color: var(--muted);
  line-height: 1.3;
}
.ai-model-badge {
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 999px;
  color: rgba(196, 181, 253, 0.95);
  background: rgba(99, 102, 241, 0.16);
  border: 1px solid rgba(99, 102, 241, 0.28);
  text-transform: uppercase;
  line-height: 1.4;
}
.ai-model-menu-item.is-locked {
  cursor: default;
  opacity: 0.5;
}
.ai-model-menu-item.is-locked:hover {
  background: transparent;
  color: var(--text-soft);
}
/* Upgrade prompt revealed when a non-Pro user picks the locked Pro model. */
.ai-model-upsell {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  padding-top: 0;
  border-top: 1px solid transparent;
  transition: max-height 0.24s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.18s ease, margin-top 0.18s ease, padding-top 0.18s ease,
    border-color 0.18s ease;
}
.ai-model-upsell.is-visible {
  max-height: 160px;
  opacity: 1;
  margin-top: 5px;
  padding-top: 9px;
  border-top-color: rgba(255, 255, 255, 0.07);
}
.ai-model-upsell-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 0 5px 9px;
}
.ai-model-upsell-icon {
  flex-shrink: 0;
  margin-top: 1px;
  color: rgba(196, 181, 253, 0.95);
}
.ai-model-upsell-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.ai-model-upsell-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}
.ai-model-upsell-sub {
  font-size: 10.5px;
  color: var(--muted);
  line-height: 1.4;
}
.ai-model-upsell-btn {
  width: 100%;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #fff;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.95), rgba(79, 82, 221, 0.96));
  box-shadow: 0 4px 12px rgba(79, 82, 221, 0.25);
  transition: filter var(--duration-fast) ease, transform var(--duration-fast) ease;
}
.ai-model-upsell-btn:hover {
  filter: brightness(1.08);
}
.ai-model-upsell-btn:active {
  transform: translateY(1px);
}

/* ── History Panel ──────────────────────────────────────── */
.ai-history {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) ease;
  border-bottom: 1px solid transparent;
}
.ai-history.is-open {
  max-height: 220px;
  overflow-y: auto;
  border-bottom-color: rgba(255, 255, 255, 0.05);
}
.ai-history-list { padding: 4px; }
.ai-history-item {
  display: block;
  width: 100%;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-soft);
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background var(--duration-fast);
}
.ai-history-item:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); }
.ai-history-item.is-active { background: rgba(255, 255, 255, 0.08); color: var(--text); }
.ai-history-item.is-running {
  color: #c4f0ff;
}
.ai-history-item-wrap {
  display: flex;
  align-items: center;
  gap: 2px;
}
.ai-history-item-wrap .ai-history-item {
  flex: 1;
  min-width: 0;
}
.ai-history-delete {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.12s ease, background 0.12s ease, color 0.12s ease;
}
.ai-history-item-wrap:hover .ai-history-delete {
  opacity: 1;
}
.ai-history-delete:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
}

/* ── Chat Delete Modal (compact) ──── */
.ai-chat-delete-modal {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}
.ai-chat-delete-modal.is-visible {
  display: flex;
}
.ai-chat-delete-modal-card {
  background: var(--surface, var(--bg-accent));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px;
  width: min(300px, 85%);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ai-chat-delete-modal-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.ai-chat-delete-modal-text {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.ai-chat-delete-modal-text span {
  font-weight: 600;
  color: var(--text);
}
.ai-chat-delete-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}
.ai-chat-delete-modal-actions .panel-button.danger {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger-text);
  border-color: rgba(239, 68, 68, 0.2);
}
.ai-chat-delete-modal-actions .panel-button.danger:hover {
  background: rgba(239, 68, 68, 0.2);
}

.ai-history-empty {
  padding: 12px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
}
.ai-history::-webkit-scrollbar { width: 4px; }
.ai-history::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.07); border-radius: 99px; }

/* ── Main Content ──────────────────────────────────────── */
.ai-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Chat Log ──────────────────────────────────────────── */
.ai-chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 16px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}
.ai-chat-log::-webkit-scrollbar { width: 4px; }
.ai-chat-log::-webkit-scrollbar-track { background: transparent; }
.ai-chat-log::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.07); border-radius: 99px; }

/* ── Empty State ───────────────────────────────────────── */
.ai-empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 40px 24px;
  animation: ai-empty-in 0.5s ease-out;
  user-select: none;
}
@keyframes ai-empty-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.ai-empty-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}
.ai-empty-desc {
  font-size: 12px;
  color: var(--text-soft);
  text-align: center;
  line-height: 1.7;
  opacity: 0.7;
}
.ai-empty-hints {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
  width: 100%;
  max-width: 240px;
}
.ai-empty-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 11.5px;
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.18s ease;
}
.ai-empty-hint:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text);
}
/* ── Messages ──────────────────────────────────────────── */
.ai-message {
  display: flex;
  font-size: 14px;
  line-height: 1.625;
  color: var(--text);
  animation: ai-msg-in 0.15s ease-out;
}
@keyframes ai-msg-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.ai-message-content { word-break: break-word; }

/* User */
.ai-message.is-user {
  justify-content: flex-end;
  padding-left: 28px;
}
.ai-message.is-user .ai-message-content {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 16px;
  max-width: 85%;
  font-size: 14px;
}

/* Assistant */
.ai-message.is-assistant {
  align-items: flex-start;
}
.ai-message-indicator {
  display: none;
}
.ai-message-body {
  min-width: 0;
  max-width: 85%;
}
.ai-message.is-assistant .ai-message-content p { margin: 0 0 14px; }
.ai-message.is-assistant .ai-message-content p:last-child { margin-bottom: 0; }
.ai-message.is-assistant .ai-message-content strong { font-weight: 600; color: var(--text); }
.ai-message.is-assistant .ai-message-content .ai-md-heading {
  margin: 14px 0 8px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
}
.ai-message.is-assistant .ai-message-content .ai-md-heading-1 { font-size: 1.1em; }
.ai-message.is-assistant .ai-message-content .ai-md-heading-2 { font-size: 1.04em; }
.ai-message.is-assistant .ai-message-content .ai-md-heading-3 { font-size: 1em; }
.ai-message.is-assistant .ai-message-content .ai-md-heading:first-child { margin-top: 0; }
/* ── Thinking indicator animation ── */
@keyframes ai-thinking-text-flow {
  0%   { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes ai-thinking-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.ai-message.ai-thinking-message {
  position: relative;
  padding-bottom: 4px;
}
.ai-message.ai-thinking-message::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(99,102,241,0.5) 35%,
    rgba(139,92,246,0.7) 50%,
    rgba(99,102,241,0.5) 65%,
    transparent 100%);
  background-size: 200% 100%;
  animation: ai-thinking-shimmer 2s ease-in-out infinite;
}
.ai-message.ai-thinking-message .ai-message-content {
  font-size: 12px;
  letter-spacing: 0.01em;
  background: linear-gradient(90deg,
    rgba(226,232,240,0.4) 0%,
    rgba(99,102,241,0.9) 40%,
    rgba(139,92,246,0.95) 50%,
    rgba(99,102,241,0.9) 60%,
    rgba(226,232,240,0.4) 100%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: ai-thinking-text-flow 3s ease-in-out infinite;
  transition: opacity 0.2s ease;
}
.ai-message.ai-thinking-message .ai-message-content.is-transitioning {
  opacity: 0;
}
.ai-message.ai-thinking-message .ai-message-body {
  display: flex;
  align-items: center;
  min-height: 20px;
}

/* System */
.ai-message.is-system {
  justify-content: center;
  padding: 4px 0;
}
.ai-message.is-system .ai-message-content {
  font-size: 11px;
  color: var(--muted);
  padding: 4px 12px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

/* Thought process */
.ai-message.is-system .ai-message-content.ai-thought-content {
  font-size: 11px;
  color: rgba(168, 162, 158, 0.8);
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  white-space: pre-wrap;
  max-height: 120px;
  overflow-y: auto;
  text-align: left;
}
/* Tool log */
.ai-message.is-system .ai-message-content.ai-tool-log-content {
  font-size: 10px;
  color: rgba(148, 163, 184, 0.7);
  padding: 4px 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.15);
  white-space: pre-wrap;
  max-height: 100px;
  overflow-y: auto;
  text-align: left;
  font-family: var(--font-mono, monospace);
}

/* ── Background Agent Toast ────────────────────────────── */
.ai-bg-toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin: 4px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-size: 12px;
  animation: aiBgToastIn 0.2s ease;
}
.ai-bg-toast.is-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.2);
  color: var(--danger-text);
}
.ai-bg-toast-action {
  margin-left: auto;
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  font-size: 11px;
  cursor: pointer;
  opacity: 0.8;
}
.ai-bg-toast-action:hover { opacity: 1; }
@keyframes aiBgToastIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── History Running Pulse Dot ────────────────────────── */
.ai-history-item-wrap.is-running .ai-history-item::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #60a5fa;
  margin-right: 6px;
  animation: aiRunPulse 1.5s ease-in-out infinite;
  vertical-align: middle;
}
@keyframes aiRunPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ── Markdown — Code Blocks (Monaco-aligned) ─────────── */
.ai-code-block {
  margin: 10px 0;
  background: #1E1E1E;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.ai-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 12px;
  background: #252526;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.ai-code-lang {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  font-weight: 600;
  color: #858585;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.ai-code-copy {
  font-size: 10px;
  color: #858585;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}
.ai-code-copy:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #D4D4D4;
}
.ai-code-block pre {
  margin: 0;
  padding: 10px 14px;
  overflow-x: auto;
}
.ai-code-block code {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px;
  line-height: 1.6;
  color: #D4D4D4;
}
.ai-code-block pre::-webkit-scrollbar { height: 4px; }
.ai-code-block pre::-webkit-scrollbar-thumb { background: rgba(121,121,121,0.4); border-radius: 99px; }

/* ── Syntax highlight tokens (Monaco VS Dark palette) ── */
.hl-keyword   { color: #C586C0; }
.hl-command   { color: #4FC1FF; }
.hl-type      { color: #4EC9B0; }
.hl-delimiter { color: #DCDCAA; }
.hl-number    { color: #B5CEA8; }
.hl-comment   { color: #6A9955; font-style: italic; }

/* ── Markdown — Inline Code ────────────────────────────── */
.ai-inline-code {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 0.88em;
  background: rgba(255, 255, 255, 0.07);
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  color: var(--text);
}

/* ── Markdown — Lists ──────────────────────────────────── */
.ai-md-list {
  margin: 10px 0 14px;
  padding-left: 22px;
}
.ai-md-list li {
  margin: 7px 0;
  line-height: 1.68;
}
.ai-md-list li::marker {
  color: rgba(203, 213, 225, 0.92);
}
.ai-md-list li.ai-md-list-item-heading {
  list-style: none;
  margin-left: -20px;
  margin-top: 14px;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 1.03em;
  color: var(--text);
}
.ai-md-list li.ai-md-list-item-heading::marker {
  content: "";
}
.ai-md-list li.ai-md-list-item-heading:first-child {
  margin-top: 2px;
}
.ai-md-list li.ai-md-list-item-heading + li {
  margin-top: 8px;
}
.ai-md-list li.ai-md-list-item-sub {
  margin-left: 16px;
  padding-left: 2px;
  color: #cbd5e1;
  list-style-type: disc;
}
.ai-md-list li.ai-md-list-item-sub::marker {
  color: rgba(196, 181, 253, 0.9);
}

/* ── Tables (GFM) ───────────────────────────────────────── */
.ai-table-wrapper {
  overflow-x: auto;
  margin: 8px 0;
}
.ai-md-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.5;
}
.ai-md-table th,
.ai-md-table td {
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}
.ai-md-table th {
  background: rgba(255, 255, 255, 0.04);
  font-weight: 600;
  color: var(--text);
}
.ai-md-table td {
  color: var(--text-soft);
}
.ai-md-table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}
.ai-md-table-wrapper::-webkit-scrollbar { height: 4px; }
.ai-md-table-wrapper::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 99px; }

/* ── AI Diff decorations (Monaco editor) ──────────────── */
.ai-diff-added-line {
  background: rgba(34, 197, 94, 0.08) !important;
  border-left: 3px solid rgba(34, 197, 94, 0.5) !important;
}
.ai-diff-added-glyph {
  background: rgba(34, 197, 94, 0.3);
  width: 3px !important;
  margin-left: 3px;
}

/* ── Undo/Keep bar (editor bottom) ────────────────────── */
.ai-undo-keep-bar {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(30, 30, 46, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  backdrop-filter: blur(8px);
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.ai-undo-keep-btn {
  padding: 4px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
}
.ai-undo-keep-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}
.ai-undo-keep-btn.is-keep {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
  color: #4ade80;
}
.ai-undo-keep-btn.is-keep:hover {
  background: rgba(34, 197, 94, 0.25);
}

/* ── Proposals ─────────────────────────────────────────── */
.ai-proposals {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}
.ai-chat-log .ai-proposals { padding: 0; max-height: none; overflow: visible; }
.ai-proposals.is-hidden { display: none; }
.ai-proposal {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--duration-normal) ease, background var(--duration-normal) ease;
}
.ai-proposal:hover {
  background: rgba(255, 255, 255, 0.035);
  border-color: rgba(99, 102, 241, 0.15);
}
.ai-proposal.is-applied::before {
  background: #818cf8;
  opacity: 0.3;
}
.ai-proposal::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #818cf8 0%, #6366f1 100%);
  opacity: 0.4;
  transition: opacity var(--duration-normal) ease;
}
.ai-proposal:hover::before {
  opacity: 0.7;
}
.ai-proposal-header {
  display: flex;
  align-items: center;
  gap: 5px;
}
.ai-proposal-icon { color: rgba(129, 140, 248, 0.7); display: flex; flex-shrink: 0; }
.ai-proposal-path {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11.5px;
  color: var(--text);
  opacity: 0.8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.ai-proposal-badge {
  margin-left: auto;
  font-size: 9px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  background: rgba(73, 194, 120, 0.1);
  color: #49c278;
  border: 1px solid rgba(73, 194, 120, 0.15);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}
.ai-proposal-summary {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
  padding-left: 19px;
}
.ai-proposal-file-list {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 1px 0;
  padding: 4px 0 2px 0;
}
.ai-proposal-file-item {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  align-items: center;
  gap: 0 6px;
  padding: 3px 10px 3px 19px;
  font-size: 11px;
  border-radius: var(--radius-xs, 4px);
}
.ai-proposal-file-item .ai-proposal-file-name { grid-column: 1; }
.ai-proposal-file-item .ai-proposal-file-badge { grid-column: 2; }
.ai-proposal-file-item .diff-summary-item.is-add { grid-column: 3; text-align: center; }
.ai-proposal-file-item .diff-summary-item.is-del { grid-column: 4; text-align: center; }
.ai-proposal-file-item:hover {
  background: rgba(255, 255, 255, 0.02);
}
.ai-proposal-file-name {
  font-family: "SF Mono", Menlo, Monaco, monospace;
  color: var(--text-secondary, var(--muted));
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
}
.ai-proposal-file-badge {
  font-size: 9px;
  padding: 1px 5px;
  border-radius: var(--radius-xs, 4px);
  background: rgba(99, 102, 241, 0.08);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.12);
  white-space: nowrap;
  flex-shrink: 0;
}
.ai-proposal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 4px;
  padding-top: 2px;
}
.ai-proposal-actions .panel-button {
  font-size: 10.5px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  transition: all var(--duration-fast) ease;
  white-space: nowrap;
}
.ai-proposal-actions .panel-button:hover {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-strong);
  border-color: rgba(99, 102, 241, 0.25);
}
.ai-proposal-actions .panel-button.ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.1);
}
.ai-proposal-actions .panel-button.ghost:hover {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-strong);
  border-color: rgba(99, 102, 241, 0.25);
}
.ai-proposal-diff {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: none;
}
.ai-proposal-diff.is-open { display: block; }
.ai-proposal-diff-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: 10px;
  color: var(--muted);
}
.ai-proposal-diff-note { font-size: 10px; color: var(--muted); }
.ai-proposal-diff-empty { font-size: 10px; color: var(--muted); }
.ai-diff {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  max-height: 200px;
  overflow: auto;
}
.ai-diff-line {
  white-space: pre;
  display: block;
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--text);
}
.ai-diff-line.is-add { color: #86efac; background: rgba(73, 194, 120, 0.08); }
.ai-diff-line.is-del { color: var(--danger-text); background: var(--danger-soft); }
.ai-diff-line.is-same { color: var(--text-soft); }

/* ── Input Area ────────────────────────────────────────── */
.ai-input-area {
  flex-shrink: 0;
  padding: 6px 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  position: relative;
}
.ai-context-bar {
  display: none;
  gap: 4px;
  flex-wrap: nowrap;
  align-items: center;
  padding: 0 6px;
  min-width: 0;
}
.ai-context-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-soft);
  line-height: 1;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ai-context-chip--file {
  flex: 1 1 auto;
}
.ai-context-chip--range {
  flex: 0 0 auto;
  margin-left: auto;
}
.ai-attachments {
  display: none;
  gap: 6px;
  flex-wrap: wrap;
  padding: 0 4px 2px;
}
.ai-attachments:not(.is-empty) {
  display: flex;
}
.ai-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(147, 197, 253, 0.28);
  background: rgba(59, 130, 246, 0.12);
  color: #bfdbfe;
  font-size: 11px;
  line-height: 1.2;
}
.ai-attachment-name {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ai-attachment-remove {
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  padding: 0;
}
.ai-attachment-remove:hover {
  background: rgba(255, 255, 255, 0.18);
}
.ai-chat-input {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 10px 10px 10px 14px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.ai-chat-input:focus-within {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.04);
}
.ai-chat-textarea {
  flex: 1;
  min-height: 28px;
  max-height: 200px;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.5;
  resize: none;
  outline: none;
  padding: 2px 0;
}
.ai-chat-textarea::placeholder { color: rgba(255, 255, 255, 0.25); }
.ai-btn-icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.18s ease;
  flex-shrink: 0;
}
.ai-btn-send {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  box-shadow: none;
  border-radius: 50%;
}
.ai-btn-attach {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-soft);
}
.ai-btn-attach:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}
.ai-btn-attach:disabled {
  opacity: 0.35;
  cursor: default;
}
.ai-btn-send:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}
.ai-btn-send:active:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
}
.ai-btn-send:disabled { display: none; }
.ai-btn-send.is-loading {
  display: flex;
  position: relative;
  color: transparent !important;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.08);
  opacity: 0.7;
  box-shadow: none;
}
.ai-btn-send.is-loading::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ai-spin 0.6s linear infinite;
}
.ai-btn-stop {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-text);
}
.ai-btn-stop:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.18);
  transform: translateY(-1px);
}
.ai-btn-stop:disabled { display: none; }
@keyframes ai-spin { to { transform: rotate(360deg); } }

/* ── Status ────────────────────────────────────────────── */
.ai-status {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-soft);
}
.ai-status:empty {
  display: none;
}

/* ── @-mention Popover ──── */
.ai-mention-popover {
  position: absolute;
  bottom: 100%;
  left: 8px;
  right: 8px;
  max-height: 240px;
  overflow-y: auto;
  background: rgba(24, 28, 36, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
  padding: 4px;
}
.ai-mention-item {
  padding: 6px 10px;
  font-size: 12px;
  font-family: "SF Mono", Menlo, monospace;
  color: rgba(226, 232, 240, 0.85);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background var(--duration-fast) ease;
}
.ai-mention-item.is-selected {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}
.ai-mention-item:hover {
  background: rgba(255, 255, 255, 0.06);
}
.ai-mention-empty {
  padding: 8px 10px;
  font-size: 11px;
  color: rgba(226, 232, 240, 0.4);
  text-align: center;
}
.ai-mention-more {
  padding: 4px 10px;
  font-size: 10px;
  color: rgba(226, 232, 240, 0.35);
  text-align: center;
}

/* ── Login Overlay ──── */
@keyframes ai-login-glow-drift {
  0%, 100% { transform: translate(-30%, -30%) scale(1); opacity: 0.5; }
  50% { transform: translate(10%, 10%) scale(1.2); opacity: 0.7; }
}
@keyframes ai-login-icon-pulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.3)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 16px rgba(139, 92, 246, 0.5)); }
}
@keyframes ai-login-slide-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.ai-login-overlay {
  position: absolute;
  inset: 0;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 8, 14, 0.82);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.ai-login-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.ai-login-overlay-glow {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(139, 92, 246, 0.12) 40%, transparent 70%);
  animation: ai-login-glow-drift 6s ease-in-out infinite;
  pointer-events: none;
}
.ai-login-overlay-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px 32px;
  max-width: 300px;
  text-align: center;
}
.ai-login-overlay.is-visible .ai-login-overlay-card {
  animation: ai-login-slide-up 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.ai-login-overlay-icon-wrap {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(139, 92, 246, 0.15);
  margin-bottom: 8px;
}
.ai-login-overlay-icon {
  color: var(--accent-strong);
  animation: ai-login-icon-pulse 3s ease-in-out infinite;
}

.ai-login-overlay-title {
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-strong) 50%, #818cf8 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.5;
}
.ai-login-overlay-subtitle {
  font-size: 12px;
  color: rgba(226, 232, 240, 0.5);
  line-height: 1.5;
  margin-bottom: 8px;
}
.ai-login-overlay-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3), 0 0 0 1px rgba(139, 92, 246, 0.2) inset;
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.ai-login-overlay-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45), 0 0 0 1px rgba(139, 92, 246, 0.3) inset;
  filter: brightness(1.08);
}
.ai-login-overlay-btn:active {
  transform: translateY(0);
}
.ai-login-overlay-btn svg {
  transition: transform 0.15s ease;
}
.ai-login-overlay-btn:hover svg {
  transform: translateX(2px);
}

.ai-status.ai-status--actions-only {
  margin-top: 8px;
  padding: 0;
  border: 0;
  background: transparent;
}
.ai-status-line {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}
.ai-status-detail {
  margin-top: 3px;
  font-size: 11.5px;
  color: rgba(203, 213, 225, 0.9);
  line-height: 1.45;
}
.ai-status-actions {
  margin-top: 8px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.ai-status.ai-status--actions-only .ai-status-actions {
  margin-top: 0;
}
.ai-status-action {
  border: 1px solid rgba(148, 163, 184, 0.38);
  background: rgba(15, 23, 42, 0.48);
  color: rgba(226, 232, 240, 0.95);
  border-radius: var(--radius-sm);
  font-size: 11px;
  padding: 4px 8px;
  cursor: pointer;
  transition: all var(--duration-normal) ease;
}
.ai-status-action:hover {
  border-color: rgba(165, 180, 252, 0.7);
  background: rgba(99, 102, 241, 0.2);
}

/* Capture Window - Premium Redesign */
.capture-window-card {
  max-width: 90vw;
  width: 1200px;
  background: rgba(18, 22, 28, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
}

.capture-window-body {
  display: grid;
  gap: 16px;
  padding: 8px 4px;
}

.capture-window-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.capture-window-search {
  flex: 1;
  min-width: 0;
  background: rgba(13, 17, 23, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text);
  transition: all 0.2s ease;
}

.capture-window-search:focus {
  background: rgba(13, 17, 23, 0.8);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(121, 126, 249, 0.2);
  outline: none;
}

.capture-window-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  max-height: 60vh;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px;
  scrollbar-gutter: stable;
}

/* Card Item */
.capture-window-item {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-lg);
  padding: 12px;
  background: rgba(255, 255, 255, 0.02);
  display: grid;
  gap: 12px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
}

.capture-window-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.capture-window-item:active {
  transform: translateY(-1px) scale(0.98);
}

.capture-window-item.is-active {
  background: rgba(121, 126, 249, 0.1);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-strong), 0 8px 24px rgba(121, 126, 249, 0.2);
}

/* Thumbnail */
.capture-window-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: #050505;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: border-color 0.2s;
}

.capture-window-item:hover .capture-window-thumb {
  border-color: rgba(255, 255, 255, 0.2);
}

/* Metadata */
.capture-window-meta {
  display: grid;
  gap: 4px;
  padding: 0 2px;
}

.capture-window-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.01em;
}

.capture-window-app {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.8;
}

.capture-window-item:hover .capture-window-title {
  color: #fff;
}

/* Capture Crop */
.modal-card.capture-crop-card {
  max-width: 100vw !important;
  width: 100vw !important;
  height: 100vh !important;
  max-height: 100vh !important;
  margin: 0 !important;
  background: rgba(10, 12, 16, 0.98);
  border: none;
  box-shadow: none;
  display: flex !important;
  flex-direction: column;
  border-radius: 0;
  padding: 0 !important;
  gap: 0 !important;
}

.capture-crop-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  position: relative;
}

.capture-crop-canvas {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: 0;
  background: #050608;
  overflow: hidden;
  user-select: none;
  touch-action: none;
  cursor: crosshair;
  will-change: contents;
}

.capture-crop-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  pointer-events: none;
  image-rendering: auto;
}

/* Selection Box */
.capture-crop-selection {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.55);
  cursor: move;
  z-index: 10;
  will-change: left, top, width, height;
}

/* Guide (hidden duplicate — kept for JS compat) */
.capture-crop-guide {
  position: absolute;
  pointer-events: none;
  z-index: 9;
  display: none !important;
}

/* Handles */
.capture-crop-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #fff;
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
  z-index: 20;
}

.capture-crop-handle::after {
  content: "";
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
}

.capture-crop-handle.tl { top: -5px; left: -5px; cursor: nw-resize; }
.capture-crop-handle.tr { top: -5px; right: -5px; cursor: ne-resize; }
.capture-crop-handle.bl { bottom: -5px; left: -5px; cursor: sw-resize; }
.capture-crop-handle.br { bottom: -5px; right: -5px; cursor: se-resize; }

/* Footer — compact bar at bottom */
.capture-crop-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.4);
}

.capture-crop-size {
  font-size: 11px;
  font-family: "SF Mono", Menlo, monospace;
  color: var(--muted);
  min-width: 80px;
}

.capture-crop-hint {
  flex: 1;
  font-size: 11px;
  color: var(--muted);
}

.capture-crop-hint.is-error {
  color: var(--danger-text);
  font-weight: 500;
}

.capture-crop-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* OCR processing busy state on Apply button */
#math-capture-crop-apply.is-busy {
  pointer-events: none;
  position: relative;
  min-width: 72px;
}

#math-capture-crop-apply.is-busy::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 8px;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--accent-strong);
  border-radius: 50%;
  animation: capture-spin 0.6s linear infinite;
}

@keyframes capture-spin {
  to { transform: rotate(360deg); }
}

/* Capture Permission Guide Modal */
.capture-permission-card {
  max-width: 480px;
  width: 90vw;
}

.capture-permission-body {
  padding: 16px 20px 8px;
  line-height: 1.6;
}

.capture-permission-description {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text-secondary, rgba(255, 255, 255, 0.75));
}

.capture-permission-steps {
  margin: 0 0 12px;
  padding-left: 20px;
  font-size: 13px;
  color: var(--text-secondary, rgba(255, 255, 255, 0.75));
}

.capture-permission-steps li {
  margin-bottom: 6px;
}

.capture-permission-steps strong {
  color: var(--text-primary, rgba(255, 255, 255, 0.95));
}

.capture-permission-note {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted, rgba(255, 255, 255, 0.45));
}

.capture-permission-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px 16px;
  justify-content: flex-end;
}

@media (max-width: 720px) {
  .topbar {
    justify-content: flex-end;
    padding: 6px 10px;
    height: auto;
  }

  .main {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: row;
    gap: 6px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--panel-border);
  }

  .tab-group {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  }

  .tab-group.secondary {
    display: none;
  }

  .sidebar-panel {
    display: none;
  }
}

.modal-card.wide {
  width: min(1080px, 97vw);
  max-width: 1080px;
}

/* Monaco Sash Debug Override */
.monaco-sash.debug,
.monaco-sash.debug.disabled,
.monaco-sash.debug:not(.disabled) > .orthogonal-drag-handle {
  background: transparent !important;
}

/* Monaco Scrollbar Override */
.monaco-editor .monaco-scrollable-element > .scrollbar.vertical,
.monaco-editor .monaco-scrollable-element > .decorationsOverviewRuler {
  background: transparent !important;
}

.monaco-editor .monaco-scrollable-element > .scrollbar > .slider {
  background: rgba(255, 255, 255, 0.12);
}

.monaco-editor .monaco-scrollable-element > .scrollbar > .slider:hover {
  background: rgba(255, 255, 255, 0.2);
}

.monaco-editor .monaco-scrollable-element > .scrollbar > .slider.active {
  background: rgba(255, 255, 255, 0.28);
}

.monaco-editor .scroll-decoration,
.monaco-scrollable-element > .shadow.top,
.monaco-scrollable-element > .shadow.top-left-corner {
  display: none !important;
}

/* ── Monaco Suggest Widget ── */
.monaco-editor .suggest-widget {
  border: 1px solid rgba(240, 246, 252, 0.08) !important;
  border-radius: 0 !important;
  background: rgba(22, 26, 34, 0.92) !important;
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  backdrop-filter: blur(20px) saturate(1.4);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.55),
    0 4px 12px rgba(0, 0, 0, 0.35),
    inset 0 0.5px 0 rgba(255, 255, 255, 0.06) !important;
}

/* Hide default border on inner tree */
.monaco-editor .suggest-widget .tree {
  border: none !important;
}

/* List rows */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row {
  border-radius: 0 !important;
  transition: background 0.1s ease;
}

/* Focused / selected row */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row.focused,
.monaco-editor .suggest-widget .monaco-list .monaco-list-row.selected {
  background: rgba(121, 126, 249, 0.14) !important;
}

/* Hover row (not focused) */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row:hover:not(.focused) {
  background: rgba(240, 246, 252, 0.04) !important;
}

/* Label text */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row .label-name {
  font-size: 12.5px !important;
  font-weight: 500 !important;
  letter-spacing: 0;
}

/* Highlight matches in label */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row .label-name .highlight {
  color: #A2A7FC !important;
  font-weight: 600 !important;
}

/* Focused row highlight matches */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row.focused .label-name .highlight {
  color: #C5C8FC !important;
}

/* Detail / path label */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row .label-description,
.monaco-editor .suggest-widget .monaco-list .monaco-list-row .details-label {
  color: rgba(139, 148, 158, 0.7) !important;
  font-size: 11px !important;
  font-weight: 400 !important;
  opacity: 1 !important;
}

/* Focused row detail */
.monaco-editor .suggest-widget .monaco-list .monaco-list-row.focused .label-description,
.monaco-editor .suggest-widget .monaco-list .monaco-list-row.focused .details-label {
  color: rgba(162, 167, 252, 0.65) !important;
}

/* Status bar at bottom */
.monaco-editor .suggest-widget > .suggest-status-bar {
  background: transparent !important;
  border-top: 1px solid rgba(240, 246, 252, 0.06) !important;
  border-radius: 0 !important;
  padding: 2px 8px !important;
}

/* Scrollbar inside suggest */
.monaco-editor .suggest-widget .monaco-scrollable-element > .scrollbar > .slider {
  background: rgba(255, 255, 255, 0.10) !important;
  border-radius: 99px !important;
}

.monaco-editor .suggest-widget .monaco-scrollable-element > .scrollbar > .slider:hover {
  background: rgba(255, 255, 255, 0.18) !important;
}

/* ── Monaco Editor Widgets (Hover, Find, etc.) ── */
.monaco-editor .editor-widget:not(.suggest-widget) {
  border-radius: var(--radius-sm) !important;
}

/* Keep Monaco problems/peek widgets inside editor bounds on narrow panes. */
.monaco-editor .marker-widget,
.monaco-editor .peekview-widget,
.monaco-editor .zone-widget {
  max-width: calc(100% - 12px) !important;
}

/* Marker navigation widget can keep stale inline width in split panes. */
.monaco-editor .zone-widget:has(.marker-widget) {
  left: 6px !important;
  width: calc(100% - 12px) !important;
  max-width: calc(100% - 12px) !important;
}

.monaco-editor .zone-widget:has(.marker-widget) .zone-widget-container,
.monaco-editor .zone-widget:has(.marker-widget) .marker-widget {
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}

.monaco-editor .marker-widget .message,
.monaco-editor .marker-widget .descriptioncontainer,
.monaco-editor .peekview-widget .message,
.monaco-editor .peekview-widget .filename {
  white-space: normal !important;
  overflow-wrap: anywhere !important;
  word-break: break-word !important;
}

/* Monaco hover outer wrapper still draws a frame by default. */
.monaco-editor .monaco-resizable-hover,
.monaco-resizable-hover {
  border: none !important;
  outline: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  position: fixed !important;
  top: var(--tex64-hover-fixed-top, 84px) !important;
  right: var(--tex64-hover-fixed-right, 18px) !important;
  left: auto !important;
  bottom: auto !important;
  transform: none !important;
  opacity: 1 !important;
  pointer-events: auto !important;
}

.monaco-resizable-hover.tex64-hover-docked {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  background: transparent !important;
}

.monaco-editor .monaco-resizable-hover .resizer {
  display: none !important;
}

.monaco-editor .monaco-hover {
  border: none !important;
  outline: none !important;
  border-radius: var(--radius-sm) !important;
  background: rgba(39, 54, 84, 0.98) !important;
  color: #f2f6ff !important;
  box-shadow: none !important;
  margin-top: 8px !important;
  margin-left: 10px !important;
  max-width: 360px !important;
  max-height: 200px !important;
  padding: 0 !important;
  overflow: hidden !important;
  mix-blend-mode: normal !important;
}

.monaco-resizable-hover.tex64-hover-docked .monaco-hover {
  margin-top: 0 !important;
  margin-left: 0 !important;
}

.monaco-editor .monaco-hover .hover-row:not(:first-child):not(:empty) {
  border-top: none !important;
}

.monaco-editor .monaco-hover .hover-row {
  padding: 6px 8px !important;
  margin: 0 !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.monaco-editor .monaco-hover .hover-row .hover-row-contents,
.monaco-editor .monaco-hover .hover-row .hover-contents {
  min-width: 0;
  font-size: 12px;
  line-height: 1.3;
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.monaco-editor .monaco-hover .monaco-hover-content,
.monaco-editor .monaco-hover .monaco-scrollable-element,
.monaco-editor .monaco-hover .markdown-hover,
.monaco-editor .monaco-hover .rendered-markdown {
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.monaco-editor .monaco-hover .monaco-scrollable-element {
  max-height: 200px !important;
}

.monaco-editor .monaco-hover .monaco-scrollable-element > .shadow,
.monaco-editor .monaco-hover .monaco-scrollable-element > .scrollbar {
  display: none !important;
}

.monaco-editor .monaco-hover .rendered-markdown,
.monaco-editor .monaco-hover .rendered-markdown p {
  margin: 0 !important;
  padding: 0 !important;
}

.monaco-editor .monaco-hover .rendered-markdown pre {
  margin: 4px 0 0 !important;
  padding: 5px 6px !important;
  border-radius: var(--radius-sm) !important;
  background: rgba(14, 24, 44, 0.94) !important;
}

.monaco-editor .monaco-hover code {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
}

/* Inline code chips inside text hovers (e.g. resolved file path) */
.monaco-editor .monaco-hover .rendered-markdown code {
  display: inline-block !important;
  padding: 1px 6px !important;
  border-radius: var(--radius-sm) !important;
  border: 1px solid rgba(197, 214, 255, 0.24) !important;
  background: rgba(95, 123, 176, 0.32) !important;
  color: rgba(242, 246, 255, 0.98) !important;
  line-height: 1.25 !important;
}

.monaco-editor .monaco-hover .rendered-markdown pre code {
  display: inline !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  background: transparent !important;
}

/* Default hover surface: opaque for readability over editor content. */
.monaco-editor .monaco-hover,
.monaco-editor .monaco-hover .monaco-hover-content,
.monaco-editor .monaco-hover .hover-row,
.monaco-editor .monaco-hover .hover-row-contents,
.monaco-editor .monaco-hover .hover-contents,
.monaco-editor .monaco-hover .markdown-hover,
.monaco-editor .monaco-hover .rendered-markdown,
.monaco-editor .monaco-hover .monaco-scrollable-element {
  background: rgba(39, 54, 84, 0.98) !important;
}

/* Preview content uses a compact card, but shell remains opaque for readability. */

.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="image"],
.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="math"],
.monaco-editor .monaco-hover .rendered-markdown > div.tex64-hover-preview,
.monaco-editor .monaco-hover .rendered-markdown > div:has(> math),
.monaco-editor .monaco-hover .rendered-markdown > div:has(math),
.monaco-editor .monaco-hover .rendered-markdown > div:has(> span.ML__latex),
.monaco-editor .monaco-hover .rendered-markdown > div:has(span.ML__latex),
.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src*="#tex64-image"]),
.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src*="#tex64-math"]),
.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src^="data:image"]) {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  margin: 0 !important;
  padding: 3px !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  border-radius: var(--radius-sm) !important;
  background: rgba(39, 54, 84, 0.98) !important;
  line-height: 0 !important;
  max-width: 320px !important;
  overflow: hidden !important;
}

/* Math previews should size to content and avoid clipping delimiters. */
.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="math"] {
  width: auto !important;
  max-width: none !important;
  padding: 2px 4px !important;
  line-height: 1 !important;
  overflow: visible !important;
}

.monaco-editor .monaco-hover img[src^="data:image"] {
  display: block !important;
  width: auto !important;
  height: auto !important;
  object-fit: contain !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  border-radius: var(--radius-sm) !important;
  background: transparent !important;
}

/* Hover target highlight: avoid cyan overlap with dark editor background. */
.monaco-editor .hoverHighlight {
  background-color: rgba(216, 172, 95, 0.28) !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="image"] img {
  max-width: 220px !important;
  max-height: 120px !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src*="#tex64-image"]) img,
.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src^="data:image"]) img {
  max-width: 220px !important;
  max-height: 120px !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="math"] img {
  max-width: 260px !important;
  max-height: 96px !important;
  width: auto !important;
  height: auto !important;
  image-rendering: auto !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div:has(> img[src*="#tex64-math"]) img {
  max-width: 260px !important;
  max-height: 96px !important;
  width: auto !important;
  height: auto !important;
  image-rendering: auto !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="math"] math,
.monaco-editor .monaco-hover .rendered-markdown > div:has(> math) math,
.monaco-editor .monaco-hover .rendered-markdown > div:has(math) math {
  display: block !important;
  max-width: 260px !important;
  max-height: 96px !important;
  margin: 0 !important;
  font-size: 1.2rem !important;
  line-height: 1.15 !important;
  color: rgba(247, 250, 255, 0.99) !important;
}

.monaco-editor .monaco-hover .tex64-hover-math-markup {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: auto !important;
  max-width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1 !important;
  overflow: visible !important;
}

.monaco-editor .monaco-hover .tex64-hover-math-markup .ML__latex {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  background: transparent !important;
  margin: 0 !important;
  padding: 0 !important;
}

.monaco-editor .monaco-hover .rendered-markdown > div[data-tex64-preview="math"] .ML__latex,
.monaco-editor .monaco-hover .rendered-markdown > div:has(> span.ML__latex) .ML__latex,
.monaco-editor .monaco-hover .rendered-markdown > div:has(span.ML__latex) .ML__latex {
  display: inline-block !important;
  max-width: none !important;
  max-height: none !important;
  margin: 0 !important;
  font-size: 1.18rem !important;
  line-height: 1.15 !important;
  color: rgba(247, 250, 255, 0.99) !important;
}

/* Global Scrollbar (Webkit) - Calm Slate */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.2);
}
::-webkit-scrollbar-corner {
  background: transparent;
}
.segmented-control {
  display: flex;
  background: var(--input-bg);
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  gap: 2px;
}

.segmented-control-item {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.1s ease;
  text-align: center;
}

.segmented-control-item:hover {
  color: var(--text);
}

.segmented-control-item.is-active {
  background: var(--panel-strong);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
/* Segmented Control */
.segmented-control {
  display: flex;
  background: var(--input-bg);
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  gap: 2px;
}

.segmented-control-item {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.1s ease;
  text-align: center;
}

.segmented-control-item:hover {
  color: var(--text);
}

.segmented-control-item.is-active {
  background: var(--panel-strong);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
/* Format Selector */
.block-format-selector {
  position: relative;
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 0;
  border: 1px solid var(--control-border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  padding: 0;
  overflow: hidden;
  height: 26px; /* Match height of other controls */
}

.block-format-option {
  position: relative;
  z-index: 1;
  background: transparent;
  border: none;
  padding: 0 4px;
  font-size: 11px;
  font-weight: 500;
  color: #94a3b8;
  cursor: pointer;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
  white-space: nowrap;
}

.block-format-option:hover {
  color: var(--text-soft);
}

.block-format-option.is-active {
  color: var(--accent);
  font-weight: 600;
}

/* Background Highlight for 3 items */
.block-format-selector::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 33.333%;
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-strong);
  transition: transform 0.15s ease-out;
  pointer-events: none;
  z-index: 0;
}

/* Active State Positions */
/* Assuming usage of data attributes or classes on container to move the highlight */
.block-format-selector[data-active="inline"]::before {
  transform: translateX(0%);
}
.block-format-selector[data-active="display"]::before {
  transform: translateX(100%);
}
.block-format-selector[data-active="none"]::before {
  transform: translateX(200%);
}

/* Math preview panel sizing and contrast are defined in the hover block above. */

/* =============================================================================
   Bottom Panel (VS Code-style terminal / math wide view)
   ============================================================================= */

.bottom-panel-resizer {
  display: none;
  height: 4px;
  cursor: row-resize;
  background: var(--panel-border);
  transition: background 0.2s;
  flex-shrink: 0;
}

.editor.has-bottom-panel .bottom-panel-resizer {
  display: block;
}

.bottom-panel-resizer:hover,
.bottom-panel-resizer.is-resizing {
  background: var(--accent);
}

.bottom-panel {
  display: none;
  grid-template-rows: 32px minmax(0, 1fr);
  min-height: 0;
  overflow: hidden;
  background: var(--panel);
  border-top: 1px solid var(--panel-border);
}

.editor.has-bottom-panel .bottom-panel {
  display: grid;
}

.bottom-panel[aria-hidden="true"] {
  display: none;
}

.editor.has-bottom-panel .bottom-panel[aria-hidden="true"] {
  display: none;
}

.bottom-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px 0 12px;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.bottom-panel-tabs {
  display: flex;
  align-items: center;
  gap: 0;
  height: 100%;
}

.bottom-panel-tab {
  position: relative;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  padding: 0 12px;
  height: 100%;
  cursor: pointer;
  transition: color var(--duration-normal) ease;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.bottom-panel-tab:hover {
  color: var(--text-soft);
}

.bottom-panel-tab.is-active {
  color: var(--text);
}

.bottom-panel-tab.is-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px 1px 0 0;
}

.bottom-panel-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
  flex-shrink: 0;
}

.bottom-panel-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.bottom-panel-body {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  padding: 0;
}

/* --- Integrated terminal --- */

.terminal-host {
  flex: 1;
  min-height: 0;
  width: 100%;
  padding: 6px 4px 6px 10px;
  background: #0e1116;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
}

/* Keep xterm at its standard sizing: don't force `.xterm { height: 100% }` and
   don't override `.xterm-viewport` overflow. xterm sizes its own viewport to
   rows×cellHeight and keeps a stable scrollbar gutter; overriding either fights
   the library (a forced height broke scroll-to-bottom; overflow:auto jitters the
   column count). Size the host element only — the rest is xterm's job. */

/* IME composition: xterm's default overlay is a black box (#000/#FFF) sitting at
   the cursor while the block cursor stays stranded to its left — jarring for CJK
   input. Restyle it to read as inline composing text in the terminal palette;
   its opaque background covers the static block cursor, and the underline mimics
   the OS IME. The committed text is echoed by the shell on confirm as usual. */
.terminal-host .xterm .composition-view {
  background: #0e1116;
  color: #cdd3de;
  text-decoration: underline;
  text-underline-offset: 2px;
  z-index: 5;
}

/* Pane switching: terminal-host is permanent; block-compose is moved in/out. */
.bottom-panel-body[data-pane="terminal"] > .block-compose {
  display: none;
}

.bottom-panel-body[data-pane="blocks"] > .terminal-host {
  display: none;
}

/* --- Plans / billing modal (mirrors the tex64.com /pricing layout) --- */

.plans-card {
  width: min(1000px, 95vw);
  max-width: 95vw;
  max-height: 92vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 30px 28px 26px;
  position: relative;
}

.plans-close {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.plans-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.plans-head {
  text-align: center;
  max-width: 40rem;
  margin: 2px auto 2px;
}
.plans-heading {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.plans-sub {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.plans-grid-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  align-items: stretch;
}

.plan-card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  background: var(--bg-accent);
}
.plan-card.is-recommended {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 18px 38px -14px var(--accent-soft-strong);
}
.plan-card.is-current {
  border-color: var(--accent-strong);
}

.plan-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 26px;
  margin-bottom: 10px;
}
.plan-card-name {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
}
.plan-chip {
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.plan-price-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 2px;
}
.plan-price {
  font-size: 32px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}
.plan-price-meta {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

.plan-desc {
  margin: 10px 0 14px;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.45;
}

.plan-features {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex-grow: 1;
}
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.4;
}
.plan-feature-mark {
  color: var(--accent);
  line-height: 1.3;
  flex-shrink: 0;
}

.plan-card-foot {
  margin-top: auto;
}
.plan-cta {
  width: 100%;
  padding: 11px 0;
  border-radius: 999px;
  border: 1px solid var(--panel-border-strong);
  background: transparent;
  color: var(--text);
  font-size: 14px;
  font-weight: 640;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}
.plan-cta:hover {
  background: rgba(255, 255, 255, 0.06);
}
.plan-cta.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.plan-cta.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}
.plan-cta.is-current,
.plan-cta:disabled {
  background: transparent;
  border-color: var(--panel-border);
  color: var(--muted);
  cursor: default;
}
.plan-cta.is-current:hover {
  background: transparent;
}

.plans-manage {
  display: block;
  margin: 2px auto 0;
  padding: 6px 12px;
  border: none;
  background: transparent;
  color: var(--text-soft);
  font-size: 12px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.plans-manage:hover {
  color: var(--text);
  text-decoration: underline;
}

.plans-checkout {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}
.plans-checkout-mount {
  min-height: 420px;
  overflow-y: auto;
}

.plans-status {
  min-height: 18px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

/* --- Bottom Panel overrides for block-compose (horizontal layout) --- */

.bottom-panel-body .block-compose {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.bottom-panel-body .block-row {
  padding: 4px 8px;
  margin-bottom: 0;
}

.bottom-panel-body .block-form[data-form="math"] {
  flex: 1;
  overflow: hidden;
  padding: 0;
}

.bottom-panel-body .block-math-input-container {
  flex: 1;
  min-height: 0;
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-bottom: none;
}

.bottom-panel-body .block-math-scroll {
  max-height: none;
  flex: 1;
  min-height: 0;
  padding: 8px 12px;
}

/* Full-window feedback overlay */
.feedback-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  /* Solid, fully opaque: a full-screen page that completely covers the app. */
  background: var(--bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.feedback-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.feedback-overlay-inner {
  position: relative;
  width: min(680px, 100%);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transform: translateY(14px);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.feedback-overlay.is-open .feedback-overlay-inner {
  transform: translateY(0);
}

.feedback-overlay-close {
  /* Top-left "back to app" affordance, dropped below the macOS traffic lights
     (trafficLightPosition y:10) so it doesn't overlap the window controls. */
  position: absolute;
  top: 44px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px 0 7px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  -webkit-app-region: no-drag;
  transition: color 0.15s ease, background 0.15s ease;
}

.feedback-overlay-close:hover {
  color: var(--text);
  background: var(--panel-muted);
}

.feedback-overlay-close svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feedback-overlay-title {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.feedback-overlay-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.feedback-overlay-textarea {
  width: 100%;
  min-height: 220px;
  flex: 1 1 auto;
  resize: none;
  padding: 16px 18px;
  font: inherit;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--panel-strong);
  border: 1px solid var(--panel-border-strong);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.feedback-overlay-textarea::placeholder {
  color: var(--muted);
}

.feedback-overlay-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.feedback-overlay-status {
  font-size: 13px;
  color: var(--text-soft);
}

.feedback-overlay-status.is-error {
  color: #ff8a8a;
}

.feedback-overlay-status.is-success {
  color: #7ee0a6;
}

.feedback-overlay-status.is-hidden {
  display: none;
}

.feedback-overlay-actions {
  display: flex;
  justify-content: flex-end;
}

.feedback-overlay-send {
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.feedback-overlay-send:hover {
  background: var(--accent-strong);
}

.feedback-overlay-send:active {
  transform: translateY(1px);
}

.feedback-overlay-send:disabled {
  opacity: 0.6;
  cursor: default;
}