/* ==========================================================================
   ITIA STUDIO // MODERN DIGITAL ART & TRACING SUITE STYLESHEET
   Aesthetics: Cosmic Obsidian Studio, Glassmorphism, Neon Accents, Fluid Layout
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-deep: #090a0e;
  --bg-surface: #101219;
  --bg-elevated: #161924;
  --bg-card: rgba(24, 27, 38, 0.75);
  --bg-glass: rgba(18, 20, 30, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-glow: rgba(0, 240, 255, 0.4);

  --accent-cyan: #00f0ff;
  --accent-crimson: #ff1244;
  --accent-pink: #ff598f;
  --accent-lime: #99ff00;
  --accent-violet: #a855f7;
  --accent-amber: #ffb703;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38bdf8;

  /* Typography */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-display: 'Space Grotesk', 'Outfit', sans-serif;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);
  --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.25);
  --shadow-crimson: 0 0 20px rgba(255, 18, 68, 0.35);

  /* Dimensions */
  --topbar-height: 56px;
  --statusbar-height: 32px;
  --left-toolbar-width: 76px;
  --right-dock-width: 320px;
}

/* Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   TOP CONTROL BAR
   ========================================================================== */
.studio-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

/* Logo Branding */
.studio-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-badge {
  background: linear-gradient(135deg, #ff1244, #a855f7);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1.5px;
  padding: 4px 8px;
  border-radius: 6px;
  box-shadow: var(--shadow-crimson);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  color: #fff;
  line-height: 1.1;
}

.logo-sub {
  font-size: 9px;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Active Artwork Pill */
.active-art-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.active-art-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}

.pill-sparkle {
  color: var(--accent-cyan);
  font-size: 12px;
}

.pill-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.pill-genre {
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 7px;
  border-radius: 10px;
}

.pill-chevron {
  font-size: 10px;
  color: var(--text-muted);
}

/* Topbar Center */
.topbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.topbar-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-medium);
  color: #fff;
}

.topbar-divider {
  width: 1px;
  height: 22px;
  background: var(--border-subtle);
}

/* Split Compare Toggle */
.wipe-toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.wipe-toggle-label input {
  display: none;
}

.toggle-slider {
  width: 32px;
  height: 18px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  position: relative;
  transition: all 0.25s ease;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.wipe-toggle-label input:checked + .toggle-slider {
  background: var(--accent-cyan);
}

.wipe-toggle-label input:checked + .toggle-slider::after {
  transform: translateX(14px);
}

/* Topbar Right */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.zoom-pill, .history-pill {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 2px;
}

.icon-btn-micro {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
}

.icon-btn-micro:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.zoom-display {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 0 6px;
  color: var(--text-primary);
  min-width: 44px;
  text-align: center;
}

.topbar-icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 14px;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.topbar-icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-medium);
  color: #fff;
}

.topbar-icon-btn.muted .sound-on {
  display: none;
}
.topbar-icon-btn:not(.muted) .sound-off {
  display: none;
}

/* Primary Export Button */
.primary-export-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #00f0ff 0%, #3b82f6 50%, #a855f7 100%);
  color: #fff;
  border: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 13px;
  padding: 7px 16px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 2px 14px rgba(0, 240, 255, 0.3);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.primary-export-btn:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.5);
}

.primary-export-btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   WORKSPACE & CANVAS
   ========================================================================== */
.studio-workspace {
  position: absolute;
  top: var(--topbar-height);
  bottom: var(--statusbar-height);
  left: 0;
  right: 0;
  display: flex;
  overflow: hidden;
}

.studio-canvas-container {
  flex: 1;
  height: 100%;
  position: relative;
  background: #0c0d12;
  overflow: hidden;
}

#studio-viewport {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

/* Floating Wipe Comparison Overlay */
.floating-wipe-overlay {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(16, 18, 26, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-medium);
  padding: 10px 20px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-lg);
  z-index: 50;
}

.wipe-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.wipe-tag.left {
  color: var(--accent-cyan);
}
.wipe-tag.right {
  color: var(--accent-pink);
}

.wipe-range-input {
  width: 220px;
  accent-color: var(--accent-cyan);
}

/* ==========================================================================
   LEFT FLOATING TOOLBAR
   ========================================================================== */
.studio-left-toolbar {
  position: absolute;
  left: 16px;
  top: 16px;
  bottom: 16px;
  width: var(--left-toolbar-width);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  z-index: 80;
  overflow-y: auto;
}

.tools-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  align-items: center;
}

.tool-btn {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.tool-btn .tool-icon {
  font-size: 20px;
}

.tool-btn .tool-hotkey {
  font-size: 8px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  position: absolute;
  bottom: 3px;
  right: 5px;
}

.tool-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: scale(1.05);
}

.tool-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(168, 85, 247, 0.25));
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
}

.toolbar-separator {
  width: 36px;
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 0;
}

/* Brush Submenu Group */
.brush-engines-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 100%;
  align-items: center;
}

.group-label {
  font-size: 8px;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 2px;
}

.brush-type-btn {
  width: 52px;
  padding: 5px 4px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.brush-type-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.brush-type-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.brush-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
}

.brush-dot.studio-pen { background: #00f0ff; }
.brush-dot.pencil { background: #94a3b8; }
.brush-dot.marker { background: #ff598f; border-radius: 2px; }
.brush-dot.airbrush { background: radial-gradient(circle, #fff, transparent); }
.brush-dot.neon-glow { background: #99ff00; box-shadow: 0 0 6px #99ff00; }
.brush-dot.eraser { background: #f43f5e; border-radius: 2px; }

/* Quick Sliders */
.quick-slider-box {
  width: 62px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.quick-slider-box.full {
  width: 100%;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  color: var(--text-muted);
  font-weight: 600;
}

.slider-val {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.studio-slider {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  outline: none;
  appearance: none;
  cursor: pointer;
}

.studio-slider::-webkit-slider-thumb {
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 6px var(--accent-cyan);
  transition: transform 0.15s ease;
}

.studio-slider::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

/* Quick Brush Size Presets Grid */
.quick-size-presets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  width: 62px;
  margin: 2px 0 4px;
}

.size-preset-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 3px 0;
  font-size: 8.5px;
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.size-preset-pill:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: var(--border-medium);
}

.size-preset-pill.active {
  background: rgba(0, 240, 255, 0.2);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.3);
}

/* Pencil Studio Widget */
.pencil-studio-widget {
  width: 64px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 8px;
  padding: 5px 3px;
  margin: 3px 0;
}

.widget-label {
  font-size: 7.5px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-align: center;
}

.pencil-grades-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  justify-content: center;
}

.pencil-grade-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: 4px;
  padding: 2px 4px;
  font-size: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
}

.pencil-grade-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.pencil-grade-btn.active {
  background: #cbd5e1;
  color: #0b0c10;
  border-color: #fff;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.4);
}

.pencil-mode-toggle {
  display: flex;
  gap: 2px;
  width: 100%;
}

.pencil-mode-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: 4px;
  padding: 3px 1px;
  font-size: 7.5px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}

.pencil-mode-btn:hover {
  color: #fff;
}

.pencil-mode-btn.active {
  background: rgba(0, 240, 255, 0.25);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Colour Pouring / Bucket Studio Widget */
.bucket-studio-widget {
  width: 64px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 8px;
  padding: 6px 4px;
  margin: 3px 0;
}

.bucket-gap-toggle-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 3px 2px;
  font-size: 7.5px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: all 0.15s;
}

.bucket-gap-toggle-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Topbar Quick Download Button */
.quick-dl-btn {
  background: rgba(255, 183, 3, 0.12) !important;
  border: 1px solid rgba(255, 183, 3, 0.4) !important;
  color: #ffb703 !important;
  font-weight: 600 !important;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.quick-dl-btn:hover {
  background: rgba(255, 183, 3, 0.25) !important;
  box-shadow: 0 0 14px rgba(255, 183, 3, 0.45) !important;
  transform: translateY(-1px);
}

.export-action-btn.project-btn {
  background: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.35);
}

.export-action-btn.project-btn:hover {
  background: rgba(168, 85, 247, 0.22);
  border-color: var(--accent-violet);
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.35);
}

.quick-select-box {
  width: 62px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.select-label {
  font-size: 8px;
  color: var(--text-muted);
  font-weight: 600;
}

.studio-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 9px;
  padding: 3px 2px;
  outline: none;
  cursor: pointer;
}

/* Active Color Circle */
.active-color-widget {
  margin-top: auto;
  padding-top: 8px;
}

.active-color-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.6);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.active-color-circle:hover {
  transform: scale(1.12);
}

/* ==========================================================================
   RIGHT FLOATING DOCK
   ========================================================================== */
.studio-right-dock {
  position: absolute;
  right: 16px;
  top: 16px;
  bottom: 16px;
  width: var(--right-dock-width);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  z-index: 80;
  overflow: hidden;
}

/* Dock Tabs */
.dock-tabs-header {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.2);
}

.dock-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.dock-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.dock-tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

/* Panel Contents */
.dock-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: none;
  flex-direction: column;
  gap: 18px;
}

.dock-panel-content.active {
  display: flex;
}

.panel-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

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

.val-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
  font-weight: 600;
}

.pill-action-btn {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-action-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

/* Reference Card */
.ref-preview-card {
  position: relative;
  width: 100%;
  height: 140px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-medium);
  background: #000;
}

.ref-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.ref-preview-card:hover .ref-thumb-img {
  transform: scale(1.04);
}

.ref-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  display: flex;
  justify-content: flex-end;
}

.ref-swap-btn {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-medium);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.ref-swap-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

.quick-switcher-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
}

.studio-select.full {
  width: 100%;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease;
}

.studio-select.full:hover {
  border-color: var(--accent-cyan);
}

.studio-select.full option {
  background: var(--bg-surface);
  color: #fff;
  padding: 4px;
}

/* Opacity Presets */
.opacity-presets-row {
  display: flex;
  gap: 6px;
}

.opacity-preset-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 0;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.opacity-preset-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* Trace Modes Grid */
.trace-modes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.trace-mode-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.trace-mode-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.trace-mode-btn.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Highlight Box (Magic Coloring Book) */
.highlight-box {
  background: linear-gradient(135deg, rgba(255, 18, 68, 0.1), rgba(168, 85, 247, 0.15));
  border: 1px solid rgba(255, 18, 68, 0.25);
  border-radius: 12px;
  padding: 14px;
}

.highlight-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.highlight-badge {
  font-size: 9px;
  letter-spacing: 1px;
  font-weight: 800;
  color: var(--accent-crimson);
  background: rgba(255, 18, 68, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
}

.highlight-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.highlight-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 12px;
}

.action-glow-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #ff1244, #ec4899);
  color: #fff;
  border: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 12px;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(255, 18, 68, 0.35);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.action-glow-btn:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 18, 68, 0.5);
}

/* ==========================================================================
   COLOR STUDIO PANEL
   ========================================================================== */
.color-picker-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.studio-color-input {
  width: 48px;
  height: 48px;
  border: 2px solid var(--border-medium);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  outline: none;
}
.studio-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}
.studio-color-input::-webkit-color-swatch {
  border: none;
  border-radius: 8px;
}

.hex-input-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  padding: 0 10px;
}

.hex-prefix {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 13px;
}

.studio-text-input {
  width: 100%;
  background: transparent;
  border: none;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 10px 6px;
  outline: none;
}

.swatches-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.color-swatch-btn {
  height: 34px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.color-swatch-btn:hover {
  transform: scale(1.12);
  border-color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.swatches-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.color-swatch-btn.mini {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

/* ==========================================================================
   LAYERS PANEL
   ========================================================================== */
.layers-actions-bar {
  display: flex;
  gap: 4px;
}

.layer-tool-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  padding: 6px 2px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.layer-tool-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.layer-tool-btn.danger:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.4);
}

.layer-option-row {
  margin: 4px 0;
}

.studio-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}

.studio-checkbox-label input {
  accent-color: var(--accent-cyan);
}

.layers-stack-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.layer-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.layer-item.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
}

.layer-action-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
}

.layer-action-icon.visible {
  color: var(--text-primary);
}

.layer-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.layer-name {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

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

.bg-color-presets {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.bg-color-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.bg-color-btn:hover, .bg-color-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: var(--border-medium);
}

/* ==========================================================================
   BOTTOM STATUS BAR
   ========================================================================== */
.studio-statusbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--statusbar-height);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 90;
  font-size: 11px;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.status-divider {
  color: rgba(255, 255, 255, 0.15);
}

.hint-pill {
  color: var(--text-secondary);
  font-size: 11px;
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 10px;
  border-radius: 12px;
}

.brand-sub-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-muted);
}

/* ==========================================================================
   MODALS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.open .modal-container {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.modal-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

/* Gallery Modal Specifics */
.gallery-modal-content {
  width: 980px;
  max-width: 95vw;
  height: 86vh;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
}

.gallery-dropzone-bar {
  margin: 14px 24px 0 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.gallery-dropzone-bar.dragover {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

.dropzone-icon {
  font-size: 24px;
}

.dropzone-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.dropzone-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.dropzone-sub {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-browse-file {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-medium);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-browse-file:hover {
  background: var(--accent-cyan);
  color: #000;
}

.gallery-cards-grid {
  padding: 18px 24px 24px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.gallery-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 240, 255, 0.25);
}

.gallery-card.active-artwork-card {
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
}

.gallery-card-thumb-wrap {
  position: relative;
  width: 100%;
  height: 140px;
  background: #000;
  overflow: hidden;
}

.gallery-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-card:hover .gallery-card-img {
  transform: scale(1.05);
}

.gallery-card-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  color: var(--accent-cyan);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 6px;
}

.current-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--accent-cyan);
  color: #000;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 3px 7px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.gallery-card-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  background: rgba(16, 18, 26, 0.6);
}

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

.card-difficulty {
  font-size: 9px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
}

.gallery-card-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.gallery-card-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
  height: 30px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.gallery-card-swatches {
  display: flex;
  gap: 5px;
  margin: 2px 0;
}

.mini-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
}

.gallery-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 6px;
}

.gallery-btn {
  flex: 1;
  padding: 7px 6px;
  border-radius: 6px;
  border: none;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.gallery-btn.trace-btn {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.gallery-btn.trace-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

.gallery-btn.colorbook-btn {
  background: linear-gradient(135deg, rgba(255, 18, 68, 0.8), rgba(236, 72, 153, 0.8));
  color: #fff;
}
.gallery-btn.colorbook-btn:hover {
  filter: brightness(1.2);
}

/* Export Modal Specifics */
.export-modal-content {
  width: 720px;
  max-width: 95vw;
}

.export-body {
  padding: 24px;
  display: flex;
  gap: 24px;
}

.export-preview-column {
  flex: 1;
  background: #000;
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.export-preview-image {
  max-width: 100%;
  max-height: 280px;
  object-fit: contain;
}

.export-controls-column {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.export-option-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.option-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.export-buttons-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.export-action-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.export-action-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.export-action-btn.primary {
  background: linear-gradient(135deg, #00f0ff, #3b82f6);
  border: none;
  color: #000;
}
.export-action-btn.primary .btn-main-text {
  color: #000;
}
.export-action-btn.primary .btn-sub-text {
  color: rgba(0, 0, 0, 0.7);
}

.btn-text-block {
  display: flex;
  flex-direction: column;
}

.btn-main-text {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.btn-sub-text {
  font-size: 11px;
  color: var(--text-muted);
}

/* Shortcuts Modal Specifics */
.shortcuts-modal-content {
  width: 480px;
  max-width: 95vw;
}

.shortcuts-grid {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

kbd {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-medium);
  padding: 3px 8px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
}

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  z-index: 2000;
  pointer-events: none;
}

.studio-toast {
  background: rgba(16, 20, 30, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--accent-cyan);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.7), 0 0 16px rgba(0, 240, 255, 0.3);
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.studio-toast.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ==========================================================================
   SYMMETRY SELECTOR
   ========================================================================== */
.symmetry-select-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 4px 8px;
  transition: all 0.2s ease;
}

.symmetry-select-wrap:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
}

.symmetry-icon {
  font-size: 13px;
}

.topbar-select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  outline: none;
  cursor: pointer;
}

.topbar-select option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

/* Timelapse Speedpaint Replay Button */
.topbar-btn.timelapse-btn {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(0, 240, 255, 0.15));
  border-color: rgba(168, 85, 247, 0.4);
}

.topbar-btn.timelapse-btn:hover {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.35), rgba(0, 240, 255, 0.3));
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.3);
}

/* ==========================================================================
   FLOATING REFERENCE LOUPE (PICTURE-IN-PICTURE)
   ========================================================================== */
.floating-pip-window {
  position: absolute;
  top: 76px;
  right: 346px;
  width: 220px;
  height: 290px;
  background: rgba(14, 16, 24, 0.92);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-medium);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 70;
}

.pip-header {
  height: 32px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  padding: 0 10px;
  gap: 8px;
  cursor: move;
  user-select: none;
}

.pip-icon {
  font-size: 11px;
}

.pip-title {
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  flex: 1;
}

.pip-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
}
.pip-close-btn:hover {
  color: #fff;
}

.pip-body {
  flex: 1;
  background: #000;
  overflow: hidden;
}

.pip-body img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   FLOATING SPEEDPAINT TIMELAPSE BAR
   ========================================================================== */
.floating-timelapse-bar {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(14, 16, 24, 0.94);
  backdrop-filter: blur(20px);
  border: 1px solid var(--accent-cyan);
  border-radius: 28px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 240, 255, 0.3);
  z-index: 150;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
  from { transform: translate(-50%, -20px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

.timelapse-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 0.6; }
  100% { transform: scale(1.3); opacity: 1; }
}

.timelapse-progress-wrap {
  width: 180px;
  height: 6px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
  overflow: hidden;
}

.timelapse-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-pink));
  border-radius: 3px;
  transition: width 0.1s linear;
}

.timelapse-speed-btns {
  display: flex;
  gap: 4px;
}

.speed-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.speed-btn.active {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
}

.timelapse-stop-btn {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #ef4444;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.timelapse-stop-btn:hover {
  background: #ef4444;
  color: #fff;
}

/* ==========================================================================
   ZEN MODE (FULLSCREEN WORKSPACE)
   ========================================================================== */
body.zen-mode-active .studio-topbar,
body.zen-mode-active .studio-left-toolbar,
body.zen-mode-active .studio-right-dock,
body.zen-mode-active .studio-statusbar {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

body.zen-mode-active .studio-workspace {
  top: 0;
  bottom: 0;
}

.zen-exit-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(16, 20, 30, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  z-index: 120;
  box-shadow: var(--shadow-md);
  transition: all 0.2s;
}

.zen-exit-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

/* Additional Brush Dots */
.brush-dot.sparkle { background: #ffd700; box-shadow: 0 0 6px #ffd700; }
.brush-dot.petals { background: #ff758f; border-radius: 50% 0 50% 50%; }
.brush-dot.halftone { background: repeating-radial-gradient(#fff, #fff 1px, transparent 2px, transparent 4px); }

/* Comparison Card Export Button */
.export-action-btn.card-export-btn {
  background: linear-gradient(135deg, rgba(255, 183, 3, 0.2), rgba(0, 240, 255, 0.2));
  border: 1px solid rgba(255, 183, 3, 0.4);
}
.export-action-btn.card-export-btn:hover {
  background: linear-gradient(135deg, rgba(255, 183, 3, 0.35), rgba(0, 240, 255, 0.35));
  border-color: #ffd700;
  box-shadow: 0 0 16px rgba(255, 183, 3, 0.35);
}
.export-action-btn.card-export-btn .btn-main-text {
  color: #ffd700;
}

/* ==========================================================================
   TOPBAR NEW CANVAS BUTTON & LOGO INTERACTION
   ========================================================================== */
.studio-logo {
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.studio-logo:hover {
  transform: scale(1.02);
  opacity: 0.95;
}

.topbar-canvas-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.12), rgba(168, 85, 247, 0.12));
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: #00f0ff;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  letter-spacing: 0.3px;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}
.topbar-canvas-btn:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(168, 85, 247, 0.25));
  border-color: #00f0ff;
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
  transform: translateY(-1px);
  color: #fff;
}
.topbar-canvas-btn .btn-sparkle {
  font-size: 13px;
  animation: sparkleTwinkle 2.5s infinite ease-in-out;
}
@keyframes sparkleTwinkle {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.8; }
  50% { transform: scale(1.2) rotate(15deg); opacity: 1; }
}

/* ==========================================================================
   FULL-SCREEN MOTION GRAPHIC, WELCOME & CHOOSE CANVAS OVERLAY
   ========================================================================== */
.itia-intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #050508;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  opacity: 1;
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1), filter 0.55s ease;
}

.itia-intro-overlay.hidden {
  display: none !important;
}

.itia-intro-overlay.exiting {
  opacity: 0;
  transform: scale(1.04);
  filter: blur(14px);
  pointer-events: none;
}

/* Background Particle Canvas */
.intro-particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Top Utility Controls */
.intro-top-controls {
  position: absolute;
  top: 24px;
  left: 28px;
  right: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 30;
}

.intro-ctrl-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(12px);
  transition: all 0.2s ease;
}
.intro-ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.intro-ctrl-btn.skip-btn kbd {
  background: rgba(255, 255, 255, 0.1);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.intro-ctrl-btn .icon-sound-off { display: none; }
.intro-ctrl-btn.muted .icon-sound-on { display: none; }
.intro-ctrl-btn.muted .icon-sound-off { display: inline; }

/* Stage Views */
.intro-stage-view {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.97);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 10;
  padding: 24px;
}

.stage-motion #intro-motion-view {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.stage-welcome #intro-welcome-view {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.stage-choose_canvas #intro-chooser-view {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

/* ==========================================================================
   STAGE 1: MOTION GRAPHIC (VERTICAL SERIF ITIA LOGO)
   ========================================================================== */
#intro-motion-view {
  cursor: pointer;
  background: #000000;
}

.motion-content-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  z-index: 10;
}

/* Vertical Serif ITIA Stack (Identical to User Reference Image) */
.intro-logo-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  position: relative;
  margin-bottom: 32px;
  user-select: none;
}

.intro-letter {
  font-family: 'Cinzel', 'Cormorant Garamond', 'Playfair Display', serif;
  font-size: clamp(74px, 12vh, 108px);
  font-weight: 500;
  line-height: 0.92;
  color: #ffffff;
  letter-spacing: 0.08em;
  opacity: 0;
  transform: translateY(22px) scale(0.9);
  animation: letterEntrance 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.3), 0 0 45px rgba(0, 240, 255, 0.12);
}

@keyframes letterEntrance {
  0% {
    opacity: 0;
    transform: translateY(24px) scale(0.9);
    filter: blur(6px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

/* Gleaming Light Sweep across the vertical letters */
.intro-light-sweep {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: calc(100% + 40px);
  background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.5) 48%, rgba(0, 240, 255, 0.7) 52%, transparent 100%);
  opacity: 0;
  pointer-events: none;
  animation: sweepDownAnim 1.4s cubic-bezier(0.4, 0, 0.2, 1) 1.9s forwards;
  mix-blend-mode: overlay;
}

@keyframes sweepDownAnim {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(-60%);
  }
  20% {
    opacity: 0.9;
  }
  80% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(70%);
  }
}

/* Tagline Reveal */
.intro-tagline-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(12px);
  animation: taglineFadeIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 2.2s forwards;
}

@keyframes taglineFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.intro-tagline-rule {
  height: 1px;
  width: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(0, 240, 255, 0.6) 30%, rgba(255, 183, 3, 0.8) 50%, rgba(0, 240, 255, 0.6) 70%, transparent 100%);
  animation: expandRuleAnim 1.1s cubic-bezier(0.16, 1, 0.3, 1) 2.1s forwards;
}

@keyframes expandRuleAnim {
  to {
    width: clamp(200px, 45vw, 360px);
  }
}

.intro-tagline-text {
  font-family: var(--font-display);
  font-size: clamp(14px, 2.2vh, 18px);
  font-weight: 700;
  letter-spacing: 0.38em;
  color: #f8fafc;
  margin: 0;
  text-transform: uppercase;
}

.intro-tagline-sub {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  opacity: 0.85;
}

.intro-click-prompt {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  opacity: 0;
  animation: taglineFadeIn 0.6s ease 2.7s forwards;
}

.prompt-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseDot 1.8s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.6); opacity: 1; }
}

/* ==========================================================================
   STAGE 2: WELCOME & MANIFESTO VIEW
   ========================================================================== */
.welcome-card-glass {
  max-width: 860px;
  width: 92%;
  padding: 44px 40px;
  border-radius: 24px;
  background: rgba(13, 16, 25, 0.88);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 240, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: welcomeCardEntrance 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes welcomeCardEntrance {
  0% { opacity: 0; transform: translateY(20px) scale(0.96); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

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

.welcome-emblem {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
}

.welcome-emblem .emblem-letters {
  font-family: 'Cinzel', serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  color: #fff;
}

.welcome-emblem .emblem-sub {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
}

.welcome-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.welcome-manifesto {
  font-family: var(--font-sans);
  font-size: clamp(13px, 1.8vw, 15px);
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 680px;
}

/* Three Pillars Feature Grid */
.welcome-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
  margin-bottom: 32px;
}

.pillar-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 20px 16px;
  text-align: left;
  transition: all 0.25s ease;
}
.pillar-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 240, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.pillar-icon {
  font-size: 24px;
  margin-bottom: 10px;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

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

/* Welcome Action Footer */
.welcome-action-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.welcome-cta-btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 28px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.welcome-cta-btn.primary {
  background: linear-gradient(135deg, #00f0ff 0%, #a855f7 100%);
  color: #050508;
  border: none;
  font-weight: 700;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4), 0 4px 14px rgba(0, 0, 0, 0.4);
}
.welcome-cta-btn.primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 32px rgba(0, 240, 255, 0.6), 0 6px 20px rgba(0, 0, 0, 0.5);
  color: #000;
}
.welcome-cta-btn.primary .btn-arrow {
  transition: transform 0.2s ease;
}
.welcome-cta-btn.primary:hover .btn-arrow {
  transform: translateX(4px);
}

.welcome-cta-btn.secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}
.welcome-cta-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

/* ==========================================================================
   STAGE 3: CHOOSE CANVAS MODAL BOX
   ========================================================================== */
.chooser-modal-box {
  max-width: 1180px;
  width: 95%;
  height: 88vh;
  max-height: 860px;
  background: rgba(14, 17, 26, 0.95);
  backdrop-filter: blur(35px);
  -webkit-backdrop-filter: blur(35px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.85), 0 0 45px rgba(0, 240, 255, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: welcomeCardEntrance 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Header */
.chooser-header {
  padding: 22px 28px 18px 28px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-shrink: 0;
}

.chooser-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.chooser-badge {
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.chooser-badge-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.chooser-main-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.3px;
  margin-bottom: 4px;
}

.chooser-sub-title {
  font-size: 13px;
  color: var(--text-secondary);
}

.chooser-close-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  font-size: 16px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.chooser-close-btn:hover {
  background: rgba(255, 18, 68, 0.2);
  border-color: #ff1244;
  color: #fff;
}

/* Tabs Bar */
.chooser-tabs-bar {
  display: flex;
  gap: 4px;
  padding: 8px 28px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.chooser-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}
.chooser-tab-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}
.chooser-tab-btn.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: rgba(0, 240, 255, 0.35);
  color: #00f0ff;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
}

/* Panels */
.chooser-panel {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
}
.chooser-panel.active {
  display: flex;
  flex-direction: column;
}

/* Filter Bar in Masterpiece Tab */
.chooser-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-right: 4px;
}

.category-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 13px;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.category-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.category-pill.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #050508;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

/* Cards Grid */
.chooser-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
  width: 100%;
}

.chooser-art-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}
.chooser-art-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 240, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
}

.card-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #090a0f;
}

.card-preview-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.chooser-art-card:hover .card-preview-thumb {
  transform: scale(1.05);
}

.card-badge-row {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.card-genre-badge {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
}

.card-diff-badge {
  background: rgba(0, 240, 255, 0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 240, 255, 0.4);
  color: #00f0ff;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
}

.card-quick-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(5,7,12,0.92) 80%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 14px;
  gap: 8px;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.chooser-art-card:hover .card-quick-overlay {
  opacity: 1;
}

.card-cta-btn {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.card-cta-btn.primary {
  background: var(--accent-cyan);
  color: #050508;
  border: none;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}
.card-cta-btn.primary:hover {
  background: #fff;
  transform: translateY(-1px);
}

.card-cta-btn.secondary {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
}
.card-cta-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.22);
}

.card-meta {
  padding: 14px 14px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}

.card-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-palette-strip {
  display: flex;
  gap: 5px;
  margin-top: 8px;
}

.card-palette-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* ==========================================================================
   TAB 2: BESPOKE BLANK CANVAS BUILDER
   ========================================================================== */
.blank-canvas-builder {
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.builder-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.builder-section-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Size Presets Grid */
.size-presets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.size-preset-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  transition: all 0.2s ease;
}
.size-preset-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.2);
}
.size-preset-card.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
}

.preset-ratio {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-cyan);
}

.preset-name {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

.preset-res {
  font-size: 11px;
  color: var(--text-muted);
}

/* Custom Dimensions Row */
.custom-dims-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 6px;
  background: rgba(0, 0, 0, 0.25);
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  width: fit-content;
}

.dims-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.dim-input-group {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  padding: 4px 8px;
  border-radius: 6px;
}
.dim-input-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}
.dim-input-group input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  width: 58px;
  text-align: right;
}
.dim-input-group span {
  font-size: 11px;
  color: var(--text-muted);
}
.dims-times {
  font-size: 14px;
  color: var(--text-muted);
}

/* Paper Presets Grid */
.paper-presets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.paper-option-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px 12px;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  transition: all 0.2s ease;
}
.paper-option-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
}
.paper-option-card.active {
  background: rgba(168, 85, 247, 0.12);
  border-color: var(--accent-violet);
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.2);
}

.paper-icon {
  font-size: 20px;
}

.paper-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.paper-title {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

.paper-desc {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Builder Columns Row */
.builder-columns-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.builder-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.blank-bg-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.blank-bg-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all 0.2s ease;
}
.blank-bg-btn:hover {
  transform: scale(1.1);
  border-color: #fff;
}
.blank-bg-btn.active {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan);
  transform: scale(1.08);
}

.blank-bg-btn.checkerboard {
  background: repeating-conic-gradient(#333 0% 25%, #222 0% 50%) 50% / 10px 10px;
}

.blank-brush-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.blank-brush-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.blank-brush-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.blank-brush-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: #00f0ff;
  font-weight: 600;
}

/* Blank Launch Bar */
.blank-launch-bar {
  margin-top: 10px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-medium);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.blank-summary-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  flex-wrap: wrap;
}

.summary-label {
  color: var(--text-muted);
  font-weight: 500;
}

.summary-val {
  color: #fff;
  font-weight: 600;
  font-family: var(--font-mono);
}

.summary-sep {
  color: var(--text-muted);
}

.blank-create-btn {
  background: linear-gradient(135deg, #00f0ff 0%, #a855f7 100%);
  color: #050508;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
}
.blank-create-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.55);
  color: #000;
}

/* ==========================================================================
   TAB 3: CUSTOM UPLOAD PANEL
   ========================================================================== */
.chooser-dropzone-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 2px dashed rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  padding: 60px 30px;
  margin: 20px auto;
  max-width: 680px;
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.25s ease;
}
.chooser-dropzone-box:hover,
.chooser-dropzone-box.dragover {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.15);
}

.dropzone-large-icon {
  font-size: 48px;
  margin-bottom: 14px;
  opacity: 0.85;
}

.dropzone-prompt {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.dropzone-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 22px;
}

.dropzone-browse-cta {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.dropzone-browse-cta:hover {
  background: var(--accent-cyan);
  color: #050508;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
  .topbar-center {
    display: none;
  }
  .studio-right-dock {
    width: 280px;
  }
  .size-presets-grid,
  .paper-presets-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .builder-columns-row {
    grid-template-columns: 1fr;
  }
  .welcome-pillars-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .studio-right-dock {
    display: none;
  }
  .studio-left-toolbar {
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 56px;
  }
  .status-center {
    display: none;
  }
  .chooser-modal-box {
    width: 100%;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
  }
  .welcome-card-glass {
    padding: 28px 20px;
  }
  .intro-letter {
    font-size: 58px;
  }
}