/* ==========================================================================
   Codex App Promo Video Master Styling (V2 — Spatial Continuity & No Crop)
   Compliant with EaseUI Design Tokens & Anti-Flop Quality Gates
   Target: 1920 x 1080 Native Viewport
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, Monaco, monospace;

  /* Color Palette */
  --bg-white: #FFFFFF;
  --bg-app: #FBFBFC;
  --bg-sidebar: #F5F6F8;
  --border-light: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.05);
  --border-focus: rgba(0, 0, 0, 0.25);
  
  --text-primary: #0D0D0D;
  --text-secondary: #52525B;
  --text-muted: #8E8E93;
  --text-dim: #A1A1AA;

  --accent-blue: #007AFF;
  --accent-green: #10B981;
  --accent-red: #EF4444;
  --accent-orange: #F59E0B;

  /* Diff colors */
  --diff-add-bg: #E6FFEC;
  --diff-add-text: #166534;
  --diff-add-line: #BBF7D0;
  --diff-del-bg: #FFEBE9;
  --diff-del-text: #991B1B;
  --diff-del-line: #FECDD3;

  /* Shadows */
  --shadow-window: 0 35px 100px rgba(0, 0, 0, 0.25), 0 12px 35px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 20px 45px -12px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.06);
  --shadow-modal: 0 30px 70px -15px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 0, 0, 0.1);
  --shadow-popover: 0 14px 35px rgba(0, 0, 0, 0.14), 0 0 0 1px rgba(0, 0, 0, 0.08);

  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: #0B0C0E;
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow: hidden;
  user-select: none;
}

/* Clean Export Mode (Headless Capture / Video Render) */
html.clean-export,
body.clean-export {
  padding: 0;
  margin: 0;
  overflow: hidden;
  background: #000000;
}

html.clean-export .video-toolbar,
body.clean-export .video-toolbar {
  display: none !important;
}

html.clean-export .video-stage-wrapper,
body.clean-export .video-stage-wrapper {
  margin-top: 0 !important;
  width: 100vw;
  height: 100vh;
  padding: 0;
}

html.clean-export .video-stage,
body.clean-export .video-stage {
  box-shadow: none;
  border-radius: 0;
}

/* ==========================================================================
   Master Playback Toolbar
   ========================================================================== */
.video-toolbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 54px;
  background: rgba(18, 19, 23, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 9999;
  color: #FFFFFF;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo-svg {
  width: 22px;
  height: 22px;
  color: #FFFFFF;
}

.brand-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-tag {
  font-size: 11px;
  background: rgba(255, 255, 255, 0.12);
  padding: 2px 8px;
  border-radius: 9999px;
  color: #D4D4D8;
}

.playback-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  max-width: 860px;
  margin: 0 20px;
}

.btn-ctrl {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.btn-ctrl svg {
  width: 15px;
  height: 15px;
}

.timeline-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#video-scrubber {
  width: 100%;
  height: 5px;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

#video-scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #FFFFFF;
  cursor: pointer;
}

.timeline-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #A1A1AA;
}

.time-display {
  font-family: var(--font-mono);
}

.scene-indicator {
  font-weight: 500;
  color: #E4E4E7;
}

.speed-selector {
  display: flex;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
}

.speed-btn {
  background: transparent;
  border: none;
  color: #A1A1AA;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
}

.speed-btn.active {
  background: rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
}

.scene-jump-pills {
  display: flex;
  gap: 5px;
}

.pill-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #D4D4D8;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.pill-btn.active {
  background: #FFFFFF;
  color: #0F1012;
  font-weight: 600;
}

/* ==========================================================================
   Master Video Stage (Native 1920 x 1080)
   ========================================================================== */
.video-stage-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000000;
  overflow: hidden;
  position: relative;
}

.video-stage {
  position: relative;
  width: 1920px;
  height: 1080px;
  background-color: var(--bg-white);
  transform-origin: center center;
  overflow: hidden;
  box-shadow: 0 0 120px rgba(0, 0, 0, 0.9);
  flex: none;
}

/* Cinematic Virtual Camera World Container */
#camera-world {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  will-change: transform;
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  #camera-world {
    transform: none !important;
  }
}

/* macOS Sequoia Oceanic Wallpaper Background Layer */
.macos-wallpaper {
  position: absolute;
  inset: -400px;
  background: radial-gradient(ellipse at top left, #4162BD 0%, #2A47A5 35%, #182C78 70%, #0D1A4A 100%),
              radial-gradient(ellipse at bottom right, #7091EE 0%, #4669D4 40%, #203B94 85%);
  background-blend-mode: screen;
  opacity: 0;
  pointer-events: none;
}

.macos-wallpaper.active {
  opacity: 1;
}

.wallpaper-watermark {
  position: absolute;
  bottom: 424px;
  left: 428px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  font-weight: 500;
}

.wallpaper-watermark svg {
  width: 18px;
  height: 18px;
}

/* Natural Kinematic Virtual Cursor (Zero lag, zero linear jitter) */
.virtual-cursor {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  z-index: 10000;
  pointer-events: none;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.3));
  will-change: transform;
}

.virtual-cursor.pressed .cursor-arrow {
  transform: scale(0.88);
  transition: transform 0.08s ease;
}

.cursor-arrow {
  width: 100%;
  height: 100%;
  transform-origin: 4px 2px;
}

/* Tactile Click Ripple Wave (Radius 4px -> 48px, Opacity 0.75 -> 0) */
.click-ripple {
  position: absolute;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  pointer-events: none;
  border: 2.5px solid #10B981;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.6), inset 0 0 6px rgba(16, 185, 129, 0.4);
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  z-index: 9999;
  will-change: transform, opacity;
}

/* Tactile Button / Element Compression on Click */
.btn-submit-circle.pressed,
.toolbar-btn.pressed,
.btn-review-changes.pressed,
.thread-row.pressed,
.traffic-dot.pressed {
  transform: scale(0.95) !important;
  transition: transform 0.08s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.polaroid-card {
  transition: box-shadow 0.15s ease;
}

/* Floating Chapter Badge (Smooth Narrative Overlay without Slide Cuts) */
.floating-chapter-badge {
  position: absolute;
  top: 36px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(17, 24, 39, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 8px 20px;
  border-radius: 9999px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.12);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.4s var(--ease-apple);
}

.floating-chapter-badge.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   Scene 1 & 3: Hero Input & Spatial Morph Unit
   ========================================================================== */
.hero-stage-container {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-header-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 30px;
}

.cloud-mark-svg {
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  color: #111827;
  overflow: visible;
}

.hero-main-title {
  font-size: 46px;
  font-weight: 600;
  color: #111827;
  letter-spacing: -0.03em;
  margin-bottom: 2px;
}

.workspace-dropdown-trigger {
  font-size: 38px;
  font-weight: 400;
  color: #6B7280;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  position: relative;
}

.workspace-dropdown-trigger svg {
  width: 20px;
  height: 20px;
}

/* Floating Prompt Bar Card (760 x 140 initially, morphable) */
.hero-input-card {
  width: 820px;
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.09);
  box-shadow: var(--shadow-card);
  padding: 22px 26px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.hero-input-content {
  font-size: 20px;
  line-height: 1.45;
  color: #111827;
  min-height: 48px;
  font-weight: 400;
}

.input-caret {
  display: inline-block;
  width: 2px;
  height: 22px;
  background-color: #111827;
  vertical-align: text-bottom;
  animation: blinkCaret 1s infinite;
}

@keyframes blinkCaret {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.hero-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-bottom-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-icon-ghost {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6B7280;
}

.pill-dropdown-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #374151;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.04);
}

.pill-dropdown-chip svg {
  width: 13px;
  height: 13px;
  color: #9CA3AF;
}

.hero-bottom-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn-icon-subtle {
  color: #9CA3AF;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon-subtle svg {
  width: 18px;
  height: 18px;
}

.btn-submit-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #000000;
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
  transition: transform 0.1s ease;
}

.btn-submit-circle.active, .btn-submit-circle:active {
  transform: scale(0.92);
}

.btn-submit-circle svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

/* Subbar */
.hero-subbar {
  width: 820px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding: 0 10px;
  font-size: 14px;
}

.mode-toggle-group {
  display: flex;
  align-items: center;
  gap: 18px;
}

.mode-toggle-item {
  color: #8E8E93;
  font-weight: 500;
}

.mode-toggle-item.active {
  color: #0D0D0D;
  font-weight: 600;
}

.subbar-right-info {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #6B7280;
}

.branch-pill {
  display: flex;
  align-items: center;
  gap: 6px;
}

.branch-pill svg {
  width: 15px;
  height: 15px;
}

/* Suggestion Cards */
.suggestion-cards-row {
  display: flex;
  gap: 14px;
  margin-top: 30px;
}

.sugg-card {
  width: 260px;
  height: 96px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 18px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 12px -4px rgba(0, 0, 0, 0.05);
}

.sugg-card-icon {
  width: 22px;
  height: 22px;
  color: #4B5563;
}

.sugg-card-text {
  font-size: 14px;
  color: #1F2937;
  font-weight: 500;
}

/* ==========================================================================
   Full Desktop App Window (Fixed 1600 x 900 — Absolute Anti-Crop Architecture)
   ========================================================================== */
.macos-app-window {
  position: absolute;
  left: 160px;
  top: 90px;
  width: 1600px;
  height: 900px;
  background: #FFFFFF;
  border-radius: 16px;
  box-shadow: var(--shadow-window);
  border: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  overflow: hidden;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.985);
}

.macos-app-window.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

/* App Sidebar (260px fixed) */
.app-sidebar {
  width: 260px;
  flex: 0 0 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
  min-height: 0;
}

.sidebar-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 0 4px;
}

.traffic-lights {
  display: flex;
  gap: 8px;
}

.traffic-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.traffic-dot.red { background: #FF5F56; border: 1px solid #E0443E; }
.traffic-dot.yellow { background: #FFBD2E; border: 1px solid #DEA123; }
.traffic-dot.green { background: #27C93F; border: 1px solid #1AAB29; }

.sidebar-nav-list {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 18px;
}

.nav-row-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 500;
  color: #374151;
}

.nav-row-item.active {
  background: rgba(0, 0, 0, 0.06);
  color: #111827;
}

.nav-row-item svg {
  width: 16px;
  height: 16px;
  color: #6B7280;
}

.sidebar-section-title {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  color: #9CA3AF;
  padding: 8px 6px 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pinned-threads-list {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 10px;
}

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

.thread-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 13px;
  color: #4B5563;
}

.thread-row.active {
  background: rgba(0, 0, 0, 0.08);
  color: #111827;
  font-weight: 500;
}

.pinned-threads-list .thread-row.active {
  background: rgba(0, 122, 255, 0.12);
  color: #007AFF;
  font-weight: 600;
}

.pinned-threads-list .thread-row.active svg {
  color: #007AFF;
}

.thread-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thread-title-wrap svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: #9CA3AF;
}

.thread-badge-time {
  font-size: 11px;
  color: #9CA3AF;
  font-family: var(--font-mono);
}

/* App Main Content (Flex Column with Zero Crop) */
.app-main-content {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  min-width: 0;
  min-height: 0;
  position: relative;
}

/* Top Window Bar */
.main-toolbar {
  flex-shrink: 0;
  height: 56px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.toolbar-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toolbar-thread-title {
  font-size: 15px;
  font-weight: 600;
  color: #111827;
}

.toolbar-repo-label {
  font-size: 13.5px;
  color: #9CA3AF;
}

.toolbar-actions-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 7px;
  border: 1px solid var(--border-light);
  background: #FFFFFF;
  color: #374151;
}

.toolbar-btn.primary {
  background: #111827;
  color: #FFFFFF;
  border-color: #111827;
}

.toolbar-btn svg {
  width: 14px;
  height: 14px;
}

/* Chat Stream Scroll (Auto-Scrolling, Zero Overflow) */
.chat-stream-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 28px 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 0;
  max-width: 960px;
  box-sizing: border-box;
}

.user-bubble-row {
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

.user-bubble {
  background: #F3F4F6;
  border-radius: 18px;
  padding: 12px 18px;
  font-size: 15px;
  color: #111827;
  max-width: 65%;
  line-height: 1.4;
}

.user-bubble.subtle {
  background: #F9FAFB;
  color: #4B5563;
  font-size: 13.5px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.agent-bubble-row {
  display: flex;
  justify-content: flex-start;
  flex-shrink: 0;
}

.agent-response-bubble {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 10px 16px;
  font-size: 13.5px;
  color: #374151;
  max-width: 80%;
  line-height: 1.5;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.agent-response-bubble code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: #111827;
}

.chat-divider-time {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px 0;
  position: relative;
  flex-shrink: 0;
}

.chat-divider-time::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(0, 0, 0, 0.06);
}

.chat-divider-time span {
  position: relative;
  background: #FFFFFF;
  padding: 0 12px;
  font-size: 11px;
  color: #9CA3AF;
  font-weight: 500;
}

.agent-summary-card {
  background: #F9FAFB;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 14px 18px;
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

.summary-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: #10B981;
}

.summary-card-header svg {
  width: 15px;
  height: 15px;
  color: #10B981;
}

.summary-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  color: #374151;
  line-height: 1.45;
}

.summary-checklist li {
  position: relative;
  padding-left: 16px;
}

.summary-checklist li::before {
  content: "•";
  position: absolute;
  left: 4px;
  color: #10B981;
  font-weight: bold;
}

.summary-checklist code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  background: rgba(0, 0, 0, 0.05);
  padding: 1px 5px;
  border-radius: 4px;
}

.agent-steps-accordion {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 780px;
  flex-shrink: 0;
}

.step-accordion-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #6B7280;
  font-family: var(--font-mono);
}

.step-accordion-row.code-edit {
  color: #10B981;
}

.step-accordion-row svg {
  width: 13px;
  height: 13px;
  color: #9CA3AF;
}

.agent-markdown-body {
  font-size: 14.5px;
  line-height: 1.6;
  color: #1F2937;
  max-width: 820px;
  flex-shrink: 0;
}

.thinking-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: #8E8E93;
  flex-shrink: 0;
}

.thinking-dot-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #007AFF;
  animation: pulseBlue 1.2s infinite ease-in-out;
}

@keyframes pulseBlue {
  0%, 100% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
}

/* Bottom Chat Dock (Locked 180px, Never Cropped) */
.bottom-dock-container {
  flex-shrink: 0;
  padding: 14px 48px 18px;
  border-top: 1px solid var(--border-subtle);
  background: #FFFFFF;
}

.dock-changes-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 13px;
}

.stat-pill-adddel {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #4B5563;
  font-weight: 500;
}

.stat-add { color: #10B981; font-weight: 600; }
.stat-del { color: #EF4444; font-weight: 600; }

.btn-review-changes {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #111827;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.bottom-dock-input-box {
  background: #F9FAFB;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dock-input-placeholder {
  font-size: 14px;
  color: #9CA3AF;
}

.dock-input-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   Split-Screen Code Diff (40% Chat / 60% Code Diff)
   ========================================================================== */
.split-diff-container {
  display: flex;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.split-chat-pane {
  flex: 0 0 40%;
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  padding: 24px;
  min-height: 0;
}

.split-diff-pane {
  flex: 1 1 60%;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  overflow-y: auto;
  min-height: 0;
}

.diff-file-header {
  flex-shrink: 0;
  height: 44px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-mono);
  background: #F9FAFB;
}

.diff-lines-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
}

.diff-line-row {
  display: flex;
}

.diff-line-num {
  width: 48px;
  padding: 2px 10px;
  text-align: right;
  color: #9CA3AF;
  user-select: none;
  background: #FAFAFA;
  border-right: 1px solid #F3F4F6;
}

.diff-line-content {
  flex: 1;
  padding: 2px 12px;
  white-space: pre;
}

.diff-line-row.added {
  background: var(--diff-add-bg);
  color: var(--diff-add-text);
}

.diff-line-row.added .diff-line-num {
  background: #DCFCE7;
  color: #166534;
}

.diff-inline-comment-bubble {
  margin: 10px 16px 10px 56px;
  background: #FFFFFF;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: #111827;
  font-weight: 500;
}

/* ==========================================================================
   Scene 13: Live Web App (Flash Stash) & Companion Side-by-Side
   ========================================================================== */
.live-app-stage {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  pointer-events: none;
}

.live-app-stage.active {
  opacity: 1;
  pointer-events: auto;
}

.live-app-window {
  width: 1060px;
  height: 820px;
  background: #141311;
  border-radius: 14px;
  box-shadow: var(--shadow-window);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.browser-header-bar {
  flex-shrink: 0;
  height: 46px;
  background: #211F1C;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.browser-url-pill {
  width: 380px;
  height: 28px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #A1A1AA;
  font-family: var(--font-mono);
}

.photobooth-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #262420 0%, #141311 75%);
}

.photobooth-hero-title {
  font-size: 82px;
  font-weight: 900;
  color: #FAF5E8;
  letter-spacing: 0.18em;
  text-align: center;
  line-height: 0.95;
  margin-bottom: 24px;
  text-transform: uppercase;
}

/* 3D Hardware Photobooth Device Mockup */
/* 3D Hardware Photobooth Device Mockup */
.hardware-booth-case {
  width: 470px;
  height: 380px;
  background: linear-gradient(180deg, #2D2C28 0%, #1B1A17 100%);
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), inset 0 2px 4px rgba(255, 255, 255, 0.15);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 20px;
}

.corner-screw {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #888680;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8), 0 1px 1px rgba(255, 255, 255, 0.2);
}

.screw-tl { top: 14px; left: 14px; }
.screw-tr { top: 14px; right: 14px; }
.screw-bl { bottom: 14px; left: 14px; }
.screw-br { bottom: 14px; right: 14px; }

.booth-sensor-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 20px;
  margin-bottom: 16px;
}

.led-indicator-group {
  display: flex;
  gap: 5px;
}

.led-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px #10B981;
}

.camera-lens-outer {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: radial-gradient(circle, #0F172A 40%, #334155 70%, #1E293B 100%);
  border: 3px solid #475569;
  box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.9);
}

.speaker-grille {
  display: grid;
  grid-template-columns: repeat(3, 4px);
  gap: 3px;
}

.grille-hole {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #11100E;
}

.polaroid-tray {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: center;
  width: 100%;
  position: relative;
}

.polaroid-card {
  width: 195px;
  background: #F4F1EA;
  border-radius: 8px;
  padding: 8px 8px 18px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  will-change: transform, box-shadow;
}

.polaroid-photo-frame {
  width: 100%;
  height: 155px;
  background: #1E293B;
  border-radius: 4px;
  overflow: hidden;
}

.polaroid-caption-bar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-size: 10.5px;
  font-family: var(--font-mono);
  color: #78716C;
  margin-top: 8px;
}

/* Floating Companion Window (Pinned to the right, 440 x 820) */
.floating-companion-window {
  width: 440px;
  height: 820px;
  background: #FFFFFF;
  border-radius: 14px;
  box-shadow: var(--shadow-window);
  border: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}