:root {
  --bg: #f7f8fb;
  --bg-soft: #ffffff;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #ffffff;
  --border: rgba(24, 32, 44, 0.1);
  --border-strong: rgba(61, 125, 175, 0.28);
  --text: #171c24;
  --text-soft: #3c4656;
  --text-muted: #667083;
  --link: #1f6fd1;
  --accent: #3d7daf;
  --accent-glow: rgba(61, 125, 175, 0.35);
  --shadow: 0 18px 46px rgba(17, 24, 39, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-blur: 12px;
}

[data-theme="dark"] {
  --bg: #0f1318;
  --bg-soft: #181d24;
  --panel: rgba(24, 29, 36, 0.92);
  --panel-strong: #1c222b;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(100, 160, 220, 0.3);
  --text: #e2e6ec;
  --text-soft: #b0b8c6;
  --text-muted: #7a8494;
  --link: #5ba3e6;
  --accent: #5ba3e6;
  --accent-glow: rgba(91, 163, 230, 0.25);
  --shadow: 0 18px 46px rgba(0, 0, 0, 0.3);
  --glass-bg: rgba(24, 29, 36, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: 14px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top center, rgba(157, 206, 255, 0.2), transparent 28%),
    linear-gradient(180deg, #fafbfd 0%, #f7f8fb 60%, #f6f7fa 100%);
  color: var(--text);
  font-family: "Noto Sans", sans-serif;
  transition: background 0.4s ease, color 0.3s ease;
}

[data-theme="dark"] body {
  background:
    radial-gradient(circle at top center, rgba(50, 90, 140, 0.2), transparent 28%),
    linear-gradient(180deg, #0f1318 0%, #111820 60%, #0f1318 100%);
}

a {
  color: var(--link);
}

/* ─── Dark-mode toggle ────────────────────────────── */
.theme-toggle {
  position: fixed;
  top: 1.1rem;
  right: 1.1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  background: var(--panel);
}

.theme-toggle-icon {
  font-size: 1rem;
  line-height: 1;
  transition: transform 0.4s ease;
}

[data-theme="dark"] .theme-toggle-icon {
  transform: rotate(180deg);
}

/* ─── Scroll reveal ───────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ─── Sections ────────────────────────────────────── */
.section {
  padding: 2rem 1.5rem;
}

.container.is-max-desktop {
  max-width: 1040px !important;
}

/* ─── Glassmorphism section divider ───────────────── */
.glass-divider {
  max-width: 1040px;
  height: 2px;
  margin: 0 auto;
  border: none;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--border-strong) 20%,
    rgba(157, 206, 255, 0.35) 50%,
    var(--border-strong) 80%,
    transparent
  );
  opacity: 0.7;
}

/* ─── Header ──────────────────────────────────────── */
.publication-header {
  padding-top: 3.5rem;
  padding-bottom: 1.15rem;
}

.publication-header .container {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.publication-title {
  margin-bottom: 0.75rem !important;
  font-family: "Google Sans", sans-serif;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.12;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* ─── GLINT word ──────────────────────────────────── */
.glint-word {
  position: relative;
  display: inline;
  vertical-align: baseline;
  margin-right: 0.02em;
  background: linear-gradient(
    90deg,
    #2a6496 0%,
    #3d7daf 16%,
    #5ba3e6 33%,
    #88c8f7 50%,
    #5ba3e6 66%,
    #3d7daf 83%,
    #2a6496 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.04em;
  font-weight: 800;
  overflow: hidden;
  animation: glintFlow 6s ease-in-out infinite;
}

[data-theme="dark"] .glint-word {
  background: linear-gradient(
    90deg,
    #5ba3e6 0%,
    #7db8e8 16%,
    #a8d4f5 33%,
    #d4ecff 50%,
    #a8d4f5 66%,
    #7db8e8 83%,
    #5ba3e6 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: glintFlow 6s ease-in-out infinite;
}

@keyframes glintFlow {
  0%   { background-position: 100% 50%; }
  50%  { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* Shimmer highlight streak */
.glint-word::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    105deg,
    transparent 20%,
    rgba(255, 255, 255, 0.15) 35%,
    rgba(255, 255, 255, 0.5) 45%,
    rgba(255, 255, 255, 0.8) 50%,
    rgba(255, 255, 255, 0.5) 55%,
    rgba(255, 255, 255, 0.15) 65%,
    transparent 80%
  );
  animation: shimmerStreak 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  animation-delay: 1.5s;
  pointer-events: none;
}

@keyframes shimmerStreak {
  0%   { left: -100%; opacity: 0; }
  5%   { opacity: 0.6; }
  40%  { left: 160%; opacity: 0.6; }
  50%  { opacity: 0; }
  100% { left: 160%; opacity: 0; }
}

/* ─── CVPR venue ──────────────────────────────────── */
.publication-venue {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  margin: 0 auto 1rem;
  padding: 0.42rem 0.5rem 0.42rem 0.42rem;
  border: 1px solid rgba(61, 125, 175, 0.18);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(223, 239, 252, 0.82)),
    rgba(255, 255, 255, 0.75);
  box-shadow:
    0 10px 24px rgba(61, 125, 175, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  font-family: "Google Sans", sans-serif;
  line-height: 1;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.venue-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.18rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #2d6fa2, #66afea);
  color: #f7fbff;
  font-size: 0.94rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  box-shadow:
    0 8px 18px rgba(61, 125, 175, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.26);
}

.venue-year {
  position: relative;
  display: inline-block;
  padding-right: 0.08rem;
  color: var(--text);
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.venue-year::after {
  content: "";
  position: absolute;
  left: 0.04rem;
  right: 0.08rem;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(61, 125, 175, 0.12), rgba(61, 125, 175, 0.75), rgba(61, 125, 175, 0.12));
}

[data-theme="dark"] .publication-venue {
  border-color: rgba(121, 184, 239, 0.2);
  background:
    linear-gradient(135deg, rgba(30, 38, 48, 0.94), rgba(22, 31, 41, 0.82)),
    rgba(24, 29, 36, 0.82);
  box-shadow:
    0 12px 28px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

[data-theme="dark"] .venue-chip {
  background: linear-gradient(135deg, #4b92d3, #8cc8fb);
  color: #0d1822;
  box-shadow:
    0 10px 20px rgba(91, 163, 230, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .venue-year::after {
  background: linear-gradient(90deg, rgba(91, 163, 230, 0.14), rgba(91, 163, 230, 0.82), rgba(91, 163, 230, 0.14));
}

/* ─── Authors ─────────────────────────────────────── */
.publication-authors {
  margin-bottom: 0.65rem;
  font-family: "Google Sans", sans-serif;
  font-size: 1.15rem;
  line-height: 1.85;
}

.author-block {
  display: inline-block;
  margin: 0 0.45rem;
  padding: 0.15rem 0.5rem;
  border-radius: 8px;
  transition: background 0.25s ease, transform 0.2s ease;
  cursor: pointer;
}

.author-block a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 0.25s ease, text-shadow 0.25s ease;
}

.author-block sup {
  color: var(--text-muted);
  font-size: 0.7em;
}

.author-block:hover {
  background: rgba(61, 125, 175, 0.08);
  transform: translateY(-1px);
}

.author-block:hover a {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}

/* ─── Affiliations ────────────────────────────────── */
.publication-affiliations {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.2rem;
  color: var(--text);
  font-size: 1.08rem;
}

.affiliation-item {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.52rem 0.82rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  box-shadow: none;
  transition: background 0.3s, border-color 0.3s;
}

.affiliation-logo {
  display: block;
  width: auto;
  height: 28px;
}

.affiliation-logo-kaist {
  height: 30px;
}

.affiliation-logo-naver {
  height: 24px;
}

.affiliation-name {
  font-weight: 600;
  color: var(--text);
}

.affiliation-label {
  white-space: nowrap;
  min-width: 0.8rem;
  color: var(--accent);
  font-family: "Google Sans", sans-serif;
  font-size: 1rem;
  font-weight: 700;
}

.publication-note {
  margin-top: 0.55rem;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* ─── TL;DR ──────────────────────────────────────── */
.tldr-section {
  padding-top: 0.5rem;
  padding-bottom: 1.5rem;
}

.tldr-section .title.is-3 {
  margin-bottom: 0.8rem;
  color: var(--text);
  font-family: "Google Sans", sans-serif;
  font-weight: 700;
}

.tldr-text {
  display: inline-block;
  max-width: 780px;
  margin: 0 auto;
  padding: 0.9rem 1.4rem;
  border-radius: 10px;
  background: rgba(61, 125, 175, 0.08);
  border: 1px solid rgba(61, 125, 175, 0.15);
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.75;
}

[data-theme="dark"] .tldr-text {
  background: rgba(91, 163, 230, 0.08);
  border-color: rgba(91, 163, 230, 0.15);
}

.tldr-text strong,
.tldr-text b {
  color: var(--accent);
  font-weight: 700;
}

/* ─── Buttons ─────────────────────────────────────── */
.publication-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.publication-links .button {
  min-width: 124px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.48rem;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.2s, box-shadow 0.25s, filter 0.25s, background 0.25s, border-color 0.25s, color 0.25s;
}

.publication-links .button .btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  flex: 0 0 1.9rem;
}

.publication-links .button .btn-icon svg {
  vertical-align: middle;
  width: 0.98rem;
  height: 0.98rem;
}

.publication-links .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.12);
  filter: none;
}

.btn-paper {
  border-color: rgba(47, 95, 134, 0.26);
  color: #2f5f86;
  background: rgba(47, 95, 134, 0.08);
}

.btn-paper .btn-icon svg {
  stroke: currentColor;
}

.btn-paper .btn-icon {
  background: rgba(47, 95, 134, 0.14);
}

.btn-arxiv {
  border-color: rgba(123, 63, 70, 0.24);
  color: #7b3f46;
  background: rgba(123, 63, 70, 0.07);
}

.btn-arxiv .btn-icon svg {
  stroke: currentColor;
}

.btn-arxiv .btn-icon {
  background: rgba(123, 63, 70, 0.13);
}

.btn-code {
  border-color: rgba(43, 50, 59, 0.2);
  color: #2b323b;
  background: rgba(43, 50, 59, 0.06);
}

.btn-code .btn-icon svg {
  fill: currentColor;
}

.btn-code .btn-icon {
  background: rgba(43, 50, 59, 0.1);
}

[data-theme="dark"] .btn-code {
  color: #c5cfdb;
  border-color: rgba(197, 207, 219, 0.16);
  background: rgba(197, 207, 219, 0.06);
}

.btn-dataset {
  border-color: rgba(71, 108, 97, 0.24);
  color: #476c61;
  background: rgba(71, 108, 97, 0.08);
}

.btn-dataset .btn-icon svg {
  stroke: currentColor;
}

.btn-dataset .btn-icon {
  background: rgba(71, 108, 97, 0.14);
}

.btn-paper:hover {
  border-color: rgba(47, 95, 134, 0.42);
  background: rgba(47, 95, 134, 0.14);
  color: #244b6a;
}

.btn-arxiv:hover {
  border-color: rgba(123, 63, 70, 0.38);
  background: rgba(123, 63, 70, 0.13);
  color: #67353b;
}

.btn-code:hover {
  border-color: rgba(43, 50, 59, 0.32);
  background: rgba(43, 50, 59, 0.11);
  color: #1f252c;
}

.btn-dataset:hover {
  border-color: rgba(71, 108, 97, 0.38);
  background: rgba(71, 108, 97, 0.14);
  color: #37564d;
}

[data-theme="dark"] .publication-links .button {
  background: rgba(28, 34, 43, 0.72);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

[data-theme="dark"] .btn-paper {
  color: #8dbfe8;
  border-color: rgba(141, 191, 232, 0.18);
  background: rgba(91, 163, 230, 0.08);
}

[data-theme="dark"] .btn-paper .btn-icon {
  background: rgba(141, 191, 232, 0.12);
}

[data-theme="dark"] .btn-arxiv {
  color: #d39da3;
  border-color: rgba(211, 157, 163, 0.18);
  background: rgba(211, 157, 163, 0.08);
}

[data-theme="dark"] .btn-arxiv .btn-icon {
  background: rgba(211, 157, 163, 0.12);
}

[data-theme="dark"] .btn-dataset {
  color: #9dc7b8;
  border-color: rgba(157, 199, 184, 0.18);
  background: rgba(157, 199, 184, 0.08);
}

[data-theme="dark"] .btn-code .btn-icon {
  background: rgba(197, 207, 219, 0.1);
}

[data-theme="dark"] .btn-dataset .btn-icon {
  background: rgba(157, 199, 184, 0.12);
}

[data-theme="dark"] .btn-paper:hover,
[data-theme="dark"] .btn-arxiv:hover,
[data-theme="dark"] .btn-code:hover,
[data-theme="dark"] .btn-dataset:hover {
  color: var(--text);
}

/* ─── Section titles ──────────────────────────────── */
.section-title {
  margin: 0 0 1.2rem;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--accent), transparent 60%) 1;
  color: var(--text);
  font-family: "Google Sans", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
}

/* ─── Abstract ────────────────────────────────────── */
.abstract-content,
.section-copy {
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.85;
}

.abstract-content {
  position: relative;
  padding-left: 1.2rem;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--accent), rgba(61, 125, 175, 0.15)) 1;
}

/* ─── Figures ─────────────────────────────────────── */
.figure-panel {
  margin: 0;
  padding: 0.85rem 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.06);
  transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.3s;
}

.figure-panel:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(17, 24, 39, 0.1);
}

.figure-panel img,
.figure-panel video {
  width: 100%;
  border: 1px solid rgba(20, 28, 38, 0.08);
  border-radius: 10px;
}

.figure-panel figcaption {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* ─── Video carousel ──────────────────────────────── */
.video-carousel {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.video-carousel .carousel-dots {
  flex-basis: 100%;
}

.video-carousel-viewport {
  overflow: hidden;
  flex: 1;
}

.video-carousel-track {
  display: flex;
  transition: transform 0.35s ease;
}

.video-scene-card {
  flex: 0 0 100%;
  margin: 0;
  padding: 0 0.4rem;
  transition: transform 0.3s ease;
}

.video-scene-card:hover {
  transform: translateY(-4px);
}

.video-scene-card video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(20, 28, 38, 0.08);
  border-radius: 16px;
  background: #000;
  transition: box-shadow 0.3s ease;
}

.video-scene-card:hover video {
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.15);
}

.video-scene-card figcaption {
  margin-top: 0.6rem;
  text-align: center;
  color: var(--text-soft);
  font-weight: 600;
}

.carousel-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text);
  cursor: pointer;
  flex: 0 0 auto;
  box-shadow: 0 6px 16px rgba(17, 24, 39, 0.08);
  transition: background 0.25s, border-color 0.25s, transform 0.2s;
}

.carousel-arrow:hover:not(:disabled) {
  transform: scale(1.08);
  border-color: var(--border-strong);
}

.carousel-arrow:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Carousel dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: none;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  transition: background 0.25s ease, transform 0.25s ease;
}

.carousel-dot.is-active {
  background: var(--accent);
  transform: scale(1.3);
}

.carousel-dot:hover:not(.is-active) {
  background: var(--text-muted);
}

/* ─── Method ──────────────────────────────────────── */
.method-figure {
  margin-bottom: 1rem;
}

.method-copy {
  max-width: 860px;
  margin-bottom: 1rem;
}

.teaser-figure {
  margin-top: 1.15rem;
}

/* ─── Metrics ─────────────────────────────────────── */
.results-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.25rem 0 1.5rem;
}

.metric-box {
  padding: 1rem 1rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-strong);
  box-shadow: 0 10px 26px rgba(17, 24, 39, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s;
}

.metric-box:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--accent-glow);
  border-color: var(--border-strong);
}

.metric-name {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-family: "Google Sans", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
}

.metric-value {
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.metric-number {
  font-family: "Google Sans", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.metric-label {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-left: 0.15rem;
}

.metric-bar-wrap {
  margin-top: 0.45rem;
  height: 4px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}

.metric-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), rgba(61, 125, 175, 0.5));
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ─── Results ─────────────────────────────────────── */
.results-stack {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.comparison-section {
  margin-top: 1.5rem;
}

.subsection-title {
  margin: 0 0 0.55rem;
  color: var(--text);
  font-family: "Google Sans", sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
}

.comparison-note {
  margin: 0 0 1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

/* ─── Surface reconstruction ──────────────────────── */
.surface-section {
  margin-top: 1.75rem;
}

.surface-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.surface-tab {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text-soft);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.surface-tab.is-active {
  background: rgba(61, 125, 175, 0.1);
  color: var(--text);
  border-color: rgba(61, 125, 175, 0.38);
}

.surface-tab.is-disabled,
.surface-tab:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.surface-panels {
  position: relative;
}

.surface-panel {
  display: none;
}

.surface-panel.is-active {
  display: block;
}

.surface-baselines {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.surface-baseline-tab {
  padding: 0.5rem 0.78rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text-soft);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.surface-baseline-tab.is-active {
  background: rgba(61, 125, 175, 0.1);
  color: var(--text);
  border-color: rgba(61, 125, 175, 0.38);
}

.surface-compare-wrap {
  display: flex;
  justify-content: center;
}

.surface-compare-panel {
  width: min(100%, 760px);
}

/* ─── Image / video compare ───────────────────────── */
.image-compare {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  aspect-ratio: 16 / 10;
  background: #f6f1ea;
  cursor: ew-resize;
  user-select: none;
}

[data-theme="dark"] .image-compare {
  background: #1a1f26;
}

.compare-image,
.compare-image.compare-image-baseline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #f6f1ea;
}

[data-theme="dark"] .compare-image {
  background: #1a1f26;
}

.comparison-card {
  margin: 0;
}

.video-compare {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  aspect-ratio: 16 / 9;
  background: #eaeef3;
  cursor: ew-resize;
  user-select: none;
}

[data-theme="dark"] .video-compare {
  background: #1a1f26;
}

.compare-video,
.compare-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.compare-video {
  object-fit: cover;
}

.compare-overlay {
  overflow: hidden;
  width: 100%;
  clip-path: inset(0 50% 0 0);
}

.compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(255, 255, 255, 0.95);
  transform: translateX(-50%);
  box-shadow: 0 0 0 1px rgba(20, 28, 38, 0.12);
}

.compare-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.96);
  border-radius: 999px;
  background: rgba(25, 34, 44, 0.92);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 14px rgba(17, 24, 39, 0.12);
}

/* Drag hint animation */
.compare-handle.hint-animate {
  animation: dragHint 1.5s ease-in-out;
}

@keyframes dragHint {
  0%   { transform: translate(-50%, -50%); }
  20%  { transform: translate(calc(-50% + 20px), -50%); }
  40%  { transform: translate(calc(-50% - 20px), -50%); }
  60%  { transform: translate(calc(-50% + 10px), -50%); }
  80%  { transform: translate(calc(-50% - 5px), -50%); }
  100% { transform: translate(-50%, -50%); }
}

.compare-handle::before,
.compare-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-top: 2px solid rgba(255, 255, 255, 0.98);
  border-right: 2px solid rgba(255, 255, 255, 0.98);
}

.compare-handle::before {
  left: 8px;
  transform: translateY(-50%) rotate(-135deg);
}

.compare-handle::after {
  right: 8px;
  transform: translateY(-50%) rotate(45deg);
}

.compare-label {
  position: absolute;
  top: 12px;
  z-index: 2;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: #18212c;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1px solid rgba(20, 28, 38, 0.08);
}

[data-theme="dark"] .compare-label {
  background: rgba(24, 29, 36, 0.85);
  color: #e2e6ec;
  border-color: rgba(255, 255, 255, 0.1);
}

.compare-label-left {
  left: 12px;
}

.compare-label-right {
  right: 12px;
}

.compare-filter-a {
  filter: grayscale(1) brightness(0.92) contrast(1.05);
}

.compare-filter-b {
  filter: sepia(0.35) hue-rotate(-18deg) saturate(0.9) brightness(0.92);
}

/* ─── Detail grid ─────────────────────────────────── */
.detail-grid {
  margin-top: 0 !important;
}

.compact-figure img {
  background: var(--panel-strong);
}

.video-panel video {
  background: #000;
}

/* ─── Citation ────────────────────────────────────── */
.citation-wrapper {
  position: relative;
}

.citation-block {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.75;
  box-shadow: none;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

.citation-block code {
  white-space: pre;
  color: inherit;
}

.citation-copy-btn {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.citation-copy-btn:hover {
  background: var(--panel-strong);
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.citation-copy-btn.is-copied {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.3);
}

/* ─── Footer ──────────────────────────────────────── */
.site-footer {
  padding: 2rem 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: background 0.3s, border-color 0.3s;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1040px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 0.2s;
}

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

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, transform 0.2s, color 0.2s;
}

.back-to-top:hover {
  border-color: var(--border-strong);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ─── Responsive ──────────────────────────────────── */
@media screen and (max-width: 768px) {
  .section {
    padding: 1.5rem 1rem;
  }

  .publication-header {
    padding-top: 2rem;
  }

  .publication-header .container {
    padding: 0;
    border-radius: 0;
  }

  .publication-title {
    font-size: 2rem;
  }

  .publication-venue {
    gap: 0.5rem;
    padding: 0.36rem 0.42rem 0.36rem 0.36rem;
  }

  .venue-chip {
    min-height: 2.05rem;
    padding: 0.12rem 0.74rem;
    font-size: 0.8rem;
    letter-spacing: 0.14em;
  }

  .venue-year {
    font-size: 1rem;
    letter-spacing: 0.1em;
  }

  .results-metrics {
    grid-template-columns: 1fr;
  }

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

  .video-carousel {
    gap: 0.4rem;
  }

  .video-scene-card {
    flex-basis: 100%;
    padding: 0;
  }

  .carousel-arrow {
    width: 40px;
    height: 40px;
  }

  .surface-panel {
    max-width: 100%;
  }

  .author-block {
    display: block;
    margin: 0.15rem 0;
  }

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

  .theme-toggle {
    top: 0.7rem;
    right: 0.7rem;
    padding: 0.35rem 0.65rem;
    font-size: 0.78rem;
  }
}