/* ==========================================================================
   OSL Shader Studio & Interactive Viewer Stylesheet
   madoodia.com - Reza Aarabi
   ========================================================================== */

:root {
  --bg-dark: #07080f;
  --bg-card: rgba(18, 20, 32, 0.75);
  --bg-card-hover: rgba(26, 29, 46, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.09);
  --border-glow: rgba(0, 240, 255, 0.35);
  --accent-cyan: #00f0ff;
  --accent-amber: #ffb700;
  --accent-purple: #7928ca;
  --text-main: #f3f3f8;
  --text-muted: #9fa0b5;
  --text-dim: #6c6d82;
  --font-main: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Tomorrow", "Outfit", sans-serif;
  --font-code: "Inconsolata", monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-med: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.5);
  --pos: 50%;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  selection-background-color: var(--accent-cyan);
  selection-color: #000;
}

::selection {
  background: rgba(0, 240, 255, 0.3);
  color: #fff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #1f2238;
  border-radius: 5px;
  border: 2px solid var(--bg-dark);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Ambient Background Lights */
.ambient-glows {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.22;
  transform: translate3d(0, 0, 0);
  animation: floatOrb 25s ease-in-out infinite alternate;
}

.glow-1 {
  width: 55vw;
  height: 55vw;
  top: -15vw;
  left: -10vw;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

.glow-2 {
  width: 60vw;
  height: 60vw;
  bottom: -20vw;
  right: -10vw;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  animation-duration: 32s;
  animation-direction: alternate-reverse;
}

.glow-3 {
  width: 40vw;
  height: 40vw;
  top: 40vh;
  right: 15vw;
  background: radial-gradient(circle, var(--accent-amber) 0%, transparent 70%);
  opacity: 0.12;
  animation-duration: 20s;
}

@keyframes floatOrb {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.1) translate(3vw, 2vh); }
  100% { transform: scale(0.95) translate(-3vw, -2vh); }
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.osl-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 8, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 2rem;
  transition: var(--transition-fast);
}

.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition-fast);
}

.nav-back-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent-amber);
  background: rgba(255, 183, 0, 0.1);
  border: 1px solid rgba(255, 183, 0, 0.3);
  border-radius: 20px;
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-back-pill:hover {
  background: rgba(255, 183, 0, 0.2);
  color: #fff;
  transform: translateX(-3px);
  box-shadow: 0 0 12px rgba(255, 183, 0, 0.3);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #fff, #a2b4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.68rem;
  text-transform: uppercase;
  font-family: var(--font-code);
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-links a:hover {
  color: var(--accent-cyan);
}

.nav-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border-radius: 30px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  background: linear-gradient(135deg, #00f0ff, #0066ff);
  color: #07080f !important;
  box-shadow: 0 4px 14px rgba(0, 240, 255, 0.35);
  transition: var(--transition-fast);
}

.nav-action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 240, 255, 0.55);
}

/* ==========================================================================
   Main Layout & Hero Section
   ========================================================================== */
main {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
}

.hero-section {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.95rem;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-family: var(--font-code);
  color: var(--text-muted);
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #00f0ff 0%, #a855f7 50%, #ffb700 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-description {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.7;
}

.hero-quick-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(18, 20, 32, 0.6);
  padding: 0.35rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
}

.stat-chip i {
  color: var(--accent-cyan);
}

/* ==========================================================================
   Interactive Comparison Section
   ========================================================================== */
.comparator-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title-wrap h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-title-wrap h2 i {
  color: var(--accent-cyan);
}

.section-title-wrap p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.2rem;
}

/* Comparator Toolbar Controls */
.comparator-toolbar {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.mode-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition-fast);
}

.mode-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.mode-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.18), rgba(0, 102, 255, 0.18));
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
}

.tool-divider {
  width: 1px;
  height: 24px;
  background: var(--border-subtle);
  margin: 0 0.35rem;
}

.quick-pct-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: var(--font-code);
  font-size: 0.8rem;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.quick-pct-btn:hover {
  color: var(--accent-amber);
  background: rgba(255, 183, 0, 0.08);
}

.action-icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

/* Main Comparison Canvas */
.comparator-stage {
  position: relative;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 0 40px rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #000;
  user-select: none;
  -webkit-user-select: none;
}

.comparison-box {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  cursor: ew-resize;
  background: #05060b;
}

/* Layer Base (After) */
.layer-after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.layer-after img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Layer Overlay (Before) with Clip-Path */
.layer-before {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  clip-path: polygon(0 0, var(--pos) 0, var(--pos) 100%, 0 100%);
  transition: clip-path 0s linear;
  will-change: clip-path;
}

.layer-before img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Difference Mode Styling */
.comparator-stage.mode-difference .layer-before {
  clip-path: none !important;
  mix-blend-mode: difference;
  opacity: 1;
  filter: contrast(160%) brightness(140%);
}

.comparator-stage.mode-difference .slider-bar,
.comparator-stage.mode-difference .slider-knob {
  opacity: 0.15;
}

.comparator-stage.mode-difference .diff-indicator-alert {
  display: flex;
}

/* Onion Skin / Opacity Mode */
.comparator-stage.mode-opacity .layer-before {
  clip-path: none !important;
  opacity: calc(var(--opacity-val, 50) / 100);
}

.comparator-stage.mode-opacity .slider-bar {
  opacity: 0;
}

/* Side by Side Mode */
.comparator-stage.mode-side-by-side .comparison-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  cursor: default;
  aspect-ratio: 32 / 9;
}

.comparator-stage.mode-side-by-side .layer-before,
.comparator-stage.mode-side-by-side .layer-after {
  position: relative;
  clip-path: none !important;
  inset: auto;
  border-right: 1px solid var(--border-subtle);
}

.comparator-stage.mode-side-by-side .slider-bar,
.comparator-stage.mode-side-by-side .slider-knob,
.comparator-stage.mode-side-by-side .range-slider-input {
  display: none !important;
}

/* Split Line & Draggable Handle */
.slider-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 3px;
  background: #ffffff;
  transform: translateX(-50%);
  z-index: 10;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.9), 0 0 25px rgba(0, 240, 255, 0.5);
}

.slider-knob {
  position: absolute;
  top: 50%;
  left: var(--pos);
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(18, 20, 32, 0.92);
  border: 2px solid #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  z-index: 12;
  pointer-events: none;
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.7), 0 4px 16px rgba(0, 0, 0, 0.7);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.comparator-stage:hover .slider-knob {
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 0 24px rgba(0, 240, 255, 1), 0 4px 20px rgba(0, 0, 0, 0.8);
}

.slider-knob svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* Range input covering the comparison canvas for full accessibility & mobile touch */
.range-slider-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 15;
  margin: 0;
  padding: 0;
}

/* Overlay Badges */
.badge-pill {
  position: absolute;
  top: 1.25rem;
  z-index: 8;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  pointer-events: none;
  text-transform: uppercase;
}

.badge-before {
  left: 1.25rem;
  background: rgba(255, 183, 0, 0.2);
  border: 1px solid rgba(255, 183, 0, 0.4);
  color: #ffca40;
}

.badge-after {
  right: 1.25rem;
  background: rgba(0, 240, 255, 0.2);
  border: 1px solid rgba(0, 240, 255, 0.4);
  color: #00f0ff;
}

.diff-indicator-alert {
  display: none;
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-family: var(--font-code);
  background: rgba(121, 40, 202, 0.45);
  border: 1px solid rgba(168, 85, 247, 0.6);
  color: #f3e8ff;
  backdrop-filter: blur(10px);
  pointer-events: none;
  align-items: center;
  gap: 0.45rem;
}

/* Interactive Comparator Bottom Strip */
.comparator-caption-strip {
  background: var(--bg-card);
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
}

.caption-meta {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.caption-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.caption-meta-item span.highlight {
  color: #fff;
  font-weight: 600;
}

.flash-compare-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

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

/* ==========================================================================
   Upload / Custom Pair Dropzone Drawer
   ========================================================================== */
.custom-upload-card {
  background: var(--bg-card);
  border: 1px dashed rgba(0, 240, 255, 0.3);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-top: 0.5rem;
  transition: var(--transition-fast);
}

.custom-upload-card.drag-over {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

.upload-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.upload-header h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
}

.upload-header h3 i {
  color: var(--accent-amber);
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.upload-drop-zone {
  border: 2px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  background: rgba(12, 14, 22, 0.5);
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.upload-drop-zone:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.04);
}

.upload-drop-zone i {
  font-size: 1.8rem;
  color: var(--accent-cyan);
}

.upload-drop-zone p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.upload-drop-zone .zone-label {
  font-weight: 600;
  color: #fff;
}

.file-hidden-input {
  display: none;
}

.upload-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
}

.btn-reset-pair {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-reset-pair:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   Video Showcase Section
   ========================================================================== */
.video-showcase-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.video-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

@media (max-width: 960px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
}

.video-main-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.video-iframe-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-iframe-wrap iframe,
.video-iframe-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card-body {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.video-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-family: var(--font-code);
  color: var(--accent-amber);
  text-transform: uppercase;
}

.video-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
}

.video-description {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.video-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.video-side-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  transition: var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.video-side-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.side-thumb-box {
  width: 100px;
  height: 65px;
  border-radius: var(--radius-sm);
  background: #111322;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.side-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.side-thumb-box .play-icon {
  position: absolute;
  color: #fff;
  font-size: 1.2rem;
  background: rgba(0, 0, 0, 0.6);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.side-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.2rem;
}

.side-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Multi-Pass Gallery Showcase
   ========================================================================== */
.gallery-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.gallery-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 240, 255, 0.15);
}

.gallery-card-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
}

.gallery-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.gallery-card-thumb .thumb-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-size: 0.72rem;
  font-family: var(--font-code);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.gallery-card-thumb .thumb-overlay-action {
  position: absolute;
  inset: 0;
  background: rgba(7, 8, 15, 0.6);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  transition: var(--transition-fast);
}

.gallery-card:hover .thumb-overlay-action {
  opacity: 1;
}

.overlay-btn {
  padding: 0.45rem 0.9rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.overlay-btn-primary {
  background: var(--accent-cyan);
  color: #000;
}

.overlay-btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  backdrop-filter: blur(8px);
}

.overlay-btn:hover {
  transform: scale(1.05);
}

.gallery-card-info {
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.gallery-card-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.gallery-card-info p {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Add New Render Card (Template) */
.gallery-card-add {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  background: rgba(18, 20, 32, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
  cursor: pointer;
  min-height: 280px;
}

.gallery-card-add:hover {
  border-color: var(--accent-amber);
  background: rgba(255, 183, 0, 0.05);
}

.gallery-card-add i {
  font-size: 2.5rem;
  color: var(--accent-amber);
  margin-bottom: 0.8rem;
}

.gallery-card-add h4 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.3rem;
}

.gallery-card-add p {
  font-size: 0.82rem;
  color: var(--text-dim);
  max-width: 240px;
}

/* ==========================================================================
   Technical Pipeline & Specifications Section
   ========================================================================== */
.specs-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: var(--transition-fast);
}

.spec-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.spec-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.spec-card:nth-child(2) .spec-icon {
  background: rgba(255, 183, 0, 0.1);
  border-color: rgba(255, 183, 0, 0.25);
  color: var(--accent-amber);
}

.spec-card:nth-child(3) .spec-icon {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(168, 85, 247, 0.25);
  color: #a855f7;
}

.spec-card:nth-child(4) .spec-icon {
  background: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.25);
  color: #00ff88;
}

.spec-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: #fff;
}

.spec-card p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Lightbox Modal
   ========================================================================== */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(16px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 82vh;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-subtle);
  object-fit: contain;
}

.lightbox-close-btn {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lightbox-close-btn:hover {
  color: var(--accent-cyan);
}

.lightbox-caption {
  margin-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.osl-footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--border-subtle);
  background: rgba(7, 8, 15, 0.95);
  padding: 3rem 1.5rem 2.5rem 1.5rem;
}

.footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand h2 {
  font-family: var(--font-display);
  color: #fff;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-social-links {
  display: flex;
  gap: 1.1rem;
  align-items: center;
}

.footer-social-icon {
  color: var(--accent-amber);
  font-size: 1.4rem;
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer-social-icon:hover {
  color: #fff;
  transform: translateY(-2px);
}

.footer-copyright {
  color: var(--text-dim);
  font-size: 0.8rem;
  font-family: var(--font-display);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  main {
    padding: 1.5rem 1rem 3rem 1rem;
    gap: 3rem;
  }
  
  .comparator-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-group {
    justify-content: center;
  }

  .badge-pill {
    font-size: 0.7rem;
    padding: 0.25rem 0.65rem;
    top: 0.75rem;
  }
  .badge-before { left: 0.75rem; }
  .badge-after { right: 0.75rem; }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}



/* ==========================================================================
   Multi-Style Layer Stack (4-6 Images Comparison Suite)
   ========================================================================== */

.multi-stack-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.multi-toolbar {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.multi-view-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.multi-view-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition-fast);
}

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

.multi-view-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(121, 40, 202, 0.25));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
}

.playback-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.cycle-btn {
  background: rgba(255, 183, 0, 0.12);
  border: 1px solid rgba(255, 183, 0, 0.35);
  color: var(--accent-amber);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

.cycle-btn:hover,
.cycle-btn.playing {
  background: rgba(255, 183, 0, 0.25);
  box-shadow: 0 0 14px rgba(255, 183, 0, 0.4);
  color: #fff;
}

/* Multi-Stage Canvas */
.multi-stage-card {
  position: relative;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 0 40px rgba(121, 40, 202, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #000;
}

.multi-canvas {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #05060b;
}

/* Stage flanked by pass-name gutters aligned with the curtain knobs */
.curtain-stage-wrap {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 120px;
  gap: 0.75rem;
}

/* Wide screens: grow into the page margins so the image keeps its full size */
@media (min-width: 1660px) {
  .curtain-stage-wrap {
    grid-template-columns: 140px minmax(0, 1fr) 140px;
    margin: 0 -152px;
  }
}

@media (max-width: 700px) {
  .curtain-stage-wrap {
    grid-template-columns: minmax(0, 1fr);
  }

  .curtain-labels {
    display: none;
  }
}

.curtain-labels {
  position: relative;
}

.curtain-label {
  position: absolute;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-code);
  font-size: 0.74rem;
  line-height: 1.2;
  /* color and opacity are set by viewer.js from how much of the pass is showing */
  color: var(--text-dim);
  white-space: nowrap;
}

.curtain-labels-left .curtain-label {
  justify-content: flex-end;
}

.curtain-label-num {
  font-weight: 600;
}

.curtain-label-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Individual Stack Layers */
.stack-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  transition: opacity 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, clip-path;
}

.stack-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Multi-Curtain / Multi-Wipe Slices */
.multi-curtain-dividers {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 35;
  pointer-events: none;
}

.multi-stage-card.view-curtain .stack-layer {
  display: block !important;
  opacity: 1 !important;
  pointer-events: none;
}

.curtain-divider-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #ffffff;
  transform: translateX(-50%);
  z-index: 40;
  cursor: ew-resize;
  pointer-events: auto;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.9), 0 0 25px rgba(0, 240, 255, 0.5);
  touch-action: none;
  user-select: none;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.curtain-divider-line:hover,
.curtain-divider-line.dragging {
  background: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 1), 0 0 35px rgba(0, 240, 255, 0.8);
}

.curtain-divider-line::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -8px;
  width: 19px;
  cursor: ew-resize;
  pointer-events: auto;
}

.curtain-divider-knob {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(12, 14, 24, 0.95);
  border: 2px solid #ffffff;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.7), 0 4px 10px rgba(0, 0, 0, 0.8);
  pointer-events: auto;
  cursor: ew-resize;
  z-index: 60;
  touch-action: none;
  user-select: none;
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.curtain-divider-knob:hover,
.curtain-divider-knob.dragging {
  transform: translate(-50%, -50%) scale(1.18);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 22px rgba(0, 240, 255, 1), 0 4px 12px rgba(0, 0, 0, 0.9);
}

.curtain-divider-line:hover .curtain-divider-knob,
.curtain-divider-line.dragging .curtain-divider-knob {
  transform: translate(-50%, -50%) scale(1.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Slice Label Badge Masked inside each layer */
.slice-label-badge {
  position: absolute;
  top: 0.85rem;
  z-index: 15;
  display: none;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  background: rgba(10, 12, 22, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 240, 255, 0.4);
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
  transition: opacity 0.15s ease;
  overflow: hidden;
  text-overflow: ellipsis;
}

.multi-stage-card.view-curtain .slice-label-badge { display: none !important; }

.slice-label-badge .badge-render-num {
  font-family: var(--font-code);
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.15);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

.slice-label-badge .badge-title-txt {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* In curtain and matrix views, hide the global top-left pill so it doesn't overlap slice labels */
.multi-stage-card.view-curtain #multi-active-pill,
.multi-stage-card.view-matrix #multi-active-pill {
  display: none;
}

/* Synchronized Matrix Grid View (2x3 or 3x2) */
.matrix-grid-container {
  display: none;
  width: 100%;
  padding: 1.25rem;
  background: #090a14;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .matrix-grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 550px) {
  .matrix-grid-container {
    grid-template-columns: 1fr;
  }
}

.multi-stage-card.view-matrix .multi-canvas {
  display: none;
}

.multi-stage-card.view-matrix .matrix-grid-container {
  display: grid;
}

.matrix-cell {
  background: rgba(18, 20, 32, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-fast);
  position: relative;
}

.matrix-cell:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
}

.matrix-thumb-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  position: relative;
  background: #000;
  overflow: hidden;
}

.matrix-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.matrix-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.matrix-footer {
  padding: 0.6rem 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.matrix-footer .layer-name-txt {
  font-weight: 600;
  color: var(--text-main);
}

.matrix-solo-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
  font-size: 0.74rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.matrix-solo-btn:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
}

/* Active Layer Live Pill Overlay */
.multi-active-pill {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  z-index: 25;
  background: rgba(18, 20, 32, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 240, 255, 0.4);
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}

.multi-active-pill .pill-num {
  background: var(--accent-cyan);
  color: #000;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
}

/* Scrub Bar Deck (Continuous Scrub through styles 1 to 6) */
.scrub-bar-strip {
  background: rgba(14, 16, 26, 0.95);
  padding: 0.9rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.scrub-slider-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.scrub-slider-track {
  width: 100%;
  accent-color: var(--accent-cyan);
  cursor: pointer;
  height: 6px;
}

.scrub-ticks {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-code);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.scrub-tick-item {
  cursor: pointer;
  transition: var(--transition-fast);
}

.scrub-tick-item:hover,
.scrub-tick-item.active {
  color: var(--accent-cyan);
  font-weight: 700;
}

/* Layer Mixer Deck (Photoshop / Nuke style Layer Stack) */
.layer-mixer-deck {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.deck-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
}

.deck-header h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.deck-header h3 i {
  color: var(--accent-cyan);
}

.deck-quick-hotkeys {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-code);
}

.layer-rows-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.layer-row-card {
  background: rgba(12, 14, 22, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  display: grid;
  grid-template-columns: 36px 56px 1.4fr 1.6fr 130px 42px;
  align-items: center;
  gap: 0.85rem;
  transition: var(--transition-fast);
}

@media (max-width: 820px) {
  .layer-row-card {
    grid-template-columns: 32px 50px 1fr 1fr;
    gap: 0.5rem;
  }
}

.layer-row-card:hover {
  background: rgba(18, 20, 32, 0.9);
  border-color: rgba(0, 240, 255, 0.3);
}

.layer-row-card.soloed {
  border-color: var(--accent-amber);
  background: rgba(255, 183, 0, 0.05);
}

.layer-row-card.hidden-layer {
  opacity: 0.45;
}

.layer-num-badge {
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 700;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.layer-thumb-mini {
  width: 52px;
  height: 32px;
  border-radius: 4px;
  overflow: hidden;
  background: #000;
  flex-shrink: 0;
}

.layer-thumb-mini img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.layer-title-box {
  display: flex;
  flex-direction: column;
}

.layer-title-box .layer-name-input {
  font-weight: 600;
  font-size: 0.88rem;
  color: #fff;
  background: transparent;
  border: 1px solid transparent;
  padding: 0.15rem 0.3rem;
  border-radius: 4px;
  width: 100%;
}

.layer-title-box .layer-name-input:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  outline: none;
}

.layer-title-box .layer-sub-txt {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.layer-opacity-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.layer-opacity-control input[type="range"] {
  flex: 1;
  accent-color: var(--accent-cyan);
  cursor: pointer;
  height: 4px;
}

.layer-opacity-val {
  font-family: var(--font-code);
  font-size: 0.76rem;
  color: var(--text-muted);
  width: 36px;
  text-align: right;
}

.layer-blend-select {
  background: rgba(20, 22, 34, 0.9);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  font-size: 0.78rem;
  cursor: pointer;
  outline: none;
  transition: var(--transition-fast);
}

.layer-blend-select:focus {
  border-color: var(--accent-cyan);
}

.layer-btn-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.layer-icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  transition: var(--transition-fast);
}

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

.layer-icon-btn.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.12);
  border-color: rgba(0, 240, 255, 0.3);
}

.layer-icon-btn.solo-btn.active {
  color: var(--accent-amber);
  background: rgba(255, 183, 0, 0.15);
  border-color: var(--accent-amber);
}

.layer-file-btn {
  position: relative;
  overflow: hidden;
}

.layer-file-btn input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* Bulk Multi-Image Uploader (4 to 6 Images at once) */
.bulk-uploader-card {
  background: rgba(14, 16, 26, 0.7);
  border: 2px dashed rgba(121, 40, 202, 0.35);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.bulk-uploader-card:hover,
.bulk-uploader-card.drag-over {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.04);
}

.bulk-uploader-card i {
  font-size: 2rem;
  color: var(--accent-cyan);
}

.bulk-uploader-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: #fff;
}

.bulk-uploader-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 480px;
}


/* Preset Pair Buttons in Comparator Toolbar */
.pair-preset-group {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.pair-preset-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.pair-preset-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.pair-preset-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
}


/* ==========================================================================
   Sample Selector Bar & Ordered Samples Styling
   ========================================================================== */

.sample-selector-bar {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  padding: 0.75rem 1.15rem;
  background: rgba(14, 16, 26, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
}

.sample-selector-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-amber);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
}

.sample-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.45rem 1rem;
  border-radius: 30px;
  font-size: 0.82rem;
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition-fast);
}

.sample-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.sample-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.22), rgba(0, 114, 255, 0.22));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
}

.sample-badge-count {
  font-size: 0.7rem;
  font-family: var(--font-code);
  padding: 0.15rem 0.45rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.5);
  color: inherit;
}

.gallery-sample-header {
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.gallery-sample-header h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.gallery-sample-header p {
  font-size: 0.84rem;
  color: var(--text-muted);
}


/* ==========================================================================
   OSL Studio Dynamic UI Styles
   ========================================================================== */

/* Navbar Brand & Hero Logos */
.nav-brand-img {
  height: 22px;
  width: auto;
  vertical-align: middle;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .nav-brand-img {
  transform: scale(1.05);
}

.hero-brand-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1.25rem;
}

.hero-logo-img {
  height: 48px;
  max-width: 90vw;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.45));
}

/* Folder Slides Navigation Bar */
.folder-slides-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: rgba(13, 16, 29, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

.folder-slides-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.folder-slides-label {
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.folder-slide-nav-arrows {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.slide-arrow-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 0.78rem;
}

.slide-arrow-btn:hover {
  background: rgba(0, 240, 255, 0.18);
  border-color: var(--accent-cyan);
  color: #fff;
  transform: translateY(-1px);
}

.folder-pills-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.folder-slide-pill {
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition-fast);
}

.folder-slide-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.folder-slide-pill.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(0, 114, 255, 0.2));
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
}

.folder-pill-count {
  font-size: 0.68rem;
  font-family: var(--font-code);
  padding: 0.1rem 0.4rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.45);
  color: var(--accent-cyan);
}

/* Dynamic Pass Chooser for Multi-Curtain */
.curtain-pass-selector-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding: 0.7rem 1.1rem;
  background: rgba(8, 10, 18, 0.9);
  border: 1px dashed rgba(0, 240, 255, 0.35);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.selector-label-group {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.selector-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.selector-sub {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.selector-chips-container {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  min-height: 38px;
  padding: 0.2rem 0;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.pass-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: grab;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
  user-select: none;
}

.pass-chip:active {
  cursor: grabbing;
}

.pass-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.pass-chip.selected {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
}

.pass-chip.dragging {
  opacity: 0.35;
  transform: scale(0.94);
  border: 1px dashed var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
}

.pass-chip.drag-over-left {
  border-left: 3px solid var(--accent-cyan) !important;
  box-shadow: -4px 0 12px rgba(0, 240, 255, 0.6);
  transform: translateX(3px);
}

.pass-chip.drag-over-right {
  border-right: 3px solid var(--accent-cyan) !important;
  box-shadow: 4px 0 12px rgba(0, 240, 255, 0.6);
  transform: translateX(-3px);
}

.pass-chip .chip-drag-handle {
  font-size: 0.62rem;
  color: var(--text-muted);
  opacity: 0.4;
  margin-right: -0.05rem;
  pointer-events: none;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.pass-chip:hover .chip-drag-handle {
  opacity: 0.95;
  color: var(--accent-cyan);
}

.pass-chip .chip-check {
  font-size: 0.7rem;
  color: var(--accent-cyan);
  pointer-events: none;
}

.pass-chip .chip-num {
  font-family: var(--font-code);
  font-size: 0.68rem;
  color: var(--accent-amber);
  background: rgba(0, 0, 0, 0.4);
  padding: 0.08rem 0.3rem;
  border-radius: 4px;
  pointer-events: none;
}

.pass-chip .chip-name {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}

.selector-preset-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.selector-action-btn {
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.74rem;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.selector-action-btn:hover {
  background: rgba(0, 240, 255, 0.2);
  border-color: var(--accent-cyan);
  color: #fff;
}

.selector-action-btn[hidden] {
  display: none;
}

.selector-action-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Pass Descriptions: Editor */
.pass-description-editor {
  flex-basis: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border-subtle);
}

.pass-description-editor[hidden] {
  display: none;
}

.description-editor-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.7rem;
}

.description-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.description-row-heading {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.description-row-num {
  font-family: var(--font-code);
  font-size: 0.68rem;
  color: var(--accent-amber);
  background: rgba(0, 0, 0, 0.4);
  padding: 0.08rem 0.3rem;
  border-radius: 4px;
}

.description-input {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 1.4;
  resize: vertical;
}

.description-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.description-editor-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.74rem;
  color: var(--text-dim);
}

/* Pass Overlays: description top-left, OSL Studio logo bottom-left of each image */
.pass-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  pointer-events: none;
}

.multi-stage-card:not(.view-curtain) .stack-layer .pass-overlay.covered {
  display: none;
}

.pass-caption {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  max-width: calc(100% - 1.8rem);
  max-height: 45%;
  overflow: hidden;
  padding: 0.45rem 0.7rem;
  border-left: 2px solid var(--accent-cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(5, 6, 11, 0.72);
  color: #fff;
  font-family: "Tomorrow", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: pre-line;
  overflow-wrap: break-word;
}

/* Clear the mode pill (mixer) and the pass number badge (matrix) */
.multi-stage-card:not(.view-curtain) .stack-layer .pass-caption {
  top: 3.6rem;
}

.matrix-thumb-wrap .pass-caption {
  top: 2.1rem;
  left: 0.5rem;
  max-width: calc(100% - 1rem);
  padding: 0.3rem 0.5rem;
  font-size: 0.72rem;
}

/* Scoped under .pass-overlay to beat the full-size .stack-layer img / .matrix-thumb-wrap img rules */
.pass-overlay .pass-logo {
  position: absolute;
  left: 0.9rem;
  bottom: 0.9rem;
  width: 130px;
  max-width: calc(100% - 1.8rem);
  height: auto;
  object-fit: contain;
  opacity: 0.9;
}

.pass-overlay .pass-logo:not([src]) {
  visibility: hidden;
}

.matrix-thumb-wrap .pass-overlay .pass-logo {
  left: 0.5rem;
  bottom: 0.5rem;
  width: 72px;
}

.pass-caption[hidden],
.hide-descriptions .pass-caption {
  display: none;
}

/* Local A/B Tester Section */
.local-picker-controls-card {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(13, 16, 29, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.local-picker-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .local-picker-grid {
    grid-template-columns: 1fr;
  }
}

.local-file-picker-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(0, 240, 255, 0.4);
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
}

.local-file-picker-btn:hover {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.25);
  transform: translateY(-2px);
}

.local-file-picker-btn i {
  color: var(--accent-cyan);
  font-size: 1.1rem;
}

/* Architecture & Tech Specs Categories */
.tech-category-block {
  margin-bottom: 2.25rem;
}

.tech-category-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 0.4rem;
}

.tech-category-title i {
  color: var(--accent-cyan);
}

.tech-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.tech-compact-card {
  background: rgba(13, 16, 29, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tech-compact-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.tech-compact-card.active-viewport-card {
  border-color: rgba(0, 240, 255, 0.4);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(13, 16, 29, 0.95));
}

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.tech-logo-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.tech-title-wrap h4 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.tech-sub-tag {
  font-size: 0.72rem;
  color: var(--text-dim);
  display: block;
}

.tech-sub-tag.highlight-cyan {
  color: var(--accent-cyan);
  font-weight: 600;
}

.tech-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

.tech-mini-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
  font-family: var(--font-code);
  font-size: 0.74rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

.tech-mini-btn:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.feature-box {
  background: rgba(13, 16, 29, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.feature-box:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 240, 255, 0.4);
}

.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.25);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.feature-content h4 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
}

.feature-content p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

.feature-content code {
  font-family: var(--font-code);
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.75rem;
}