:root {
  --primary: #1a56db;
  --primary-dark: #1341a8;
  --accent: #0ea5e9;
  --surface: #f8fafc;
  --surface-alt: #f1f5f9;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.14);
  --transition: all 0.22s cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.65;
}

/* ── Sticky section nav ─────────────────────────────────── */
.t2v-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.t2v-nav-inner {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1.5rem;
}

.t2v-nav-brand {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  background: linear-gradient(90deg, #1a56db, #0ea5e9);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.t2v-nav-links { display: flex; gap: 1.6rem; }

.t2v-nav-links a {
  position: relative;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}
.t2v-nav-links a:hover { color: var(--primary); }
.t2v-nav-links a.active { color: var(--primary); }
.t2v-nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -7px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

/* anchored sections clear the sticky nav */
section.t2v-section { scroll-margin-top: 62px; }

/* ── Hero ─────────────────────────────────────────────── */
.t2v-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 60%, #0369a1 100%);
  color: #fff;
  padding: 5rem 1.5rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.t2v-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

/* Hero background video + scrim */
.hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  opacity: 0.55;
  filter: blur(1.5px) saturate(1.1);
  transform: scale(1.06);   /* hides blurred edges */
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(15,23,42,0.35) 0%, rgba(15,23,42,0.72) 100%),
    linear-gradient(135deg, rgba(15,23,42,0.80) 0%, rgba(30,58,138,0.58) 55%, rgba(3,105,161,0.62) 100%);
  pointer-events: none;
}

.t2v-hero .container { position: relative; z-index: 3; max-width: 900px; margin: 0 auto; }

/* HuggingFace logo inside the Weights button */
.hf-logo {
  height: 1.05em;
  width: auto;
  vertical-align: -0.18em;
  opacity: 0.65;
}

.venue-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #e0f2fe;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.3rem 1rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.t2v-title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1.5rem;
}

.t2v-title span.method-name {
  background: linear-gradient(90deg, #60a5fa, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.authors {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 0.5rem;
}

.authors a { color: #93c5fd; text-decoration: none; }
.authors a:hover { text-decoration: underline; }

.affiliation {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
}

/* Action buttons */
.action-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: 99px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: #fff;
  color: var(--primary);
}
.btn-primary:hover { background: #e0f2fe; transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

.btn-coming-soon {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.5);
  border: 1.5px solid rgba(255,255,255,0.15);
  cursor: default;
  font-size: 0.88rem;
}
.btn-coming-soon:hover { transform: none; }

/* ── Sections ──────────────────────────────────────────── */
section.t2v-section {
  padding: 4rem 1.5rem;
}

section.t2v-section.alt-bg {
  background: var(--surface);
}

.section-inner {
  max-width: 960px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

/* ── Abstract ───────────────────────────────────────────── */
.abstract-text {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.8;
  text-align: justify;
}

/* ── Teaser video ───────────────────────────────────────── */
.teaser-section { padding-top: 2.75rem; padding-bottom: 2.75rem; }

.teaser-video-wrap {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  line-height: 0;
}

.teaser-video {
  width: 100%;
  display: block;
  aspect-ratio: 960 / 480;
  object-fit: cover;
  background: #0f172a;
}

.teaser-caption {
  max-width: 760px;
  margin: 1.15rem auto 0;
  text-align: center;
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.65;
}
.teaser-caption strong { color: var(--text); font-weight: 600; }

/* ── Teaser (legacy grid) ───────────────────────────────── */
.teaser-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  align-items: start;
}
.teaser-grid .teaser-item { position: relative; }
.teaser-grid .teaser-item video {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.teaser-label {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Camera Gallery ─────────────────────────────────────── */
.cam-gallery-wrap {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Camera selector */
.cam-selector-wrap {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cam-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cam-selector-label {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* ── Tracking-points toggle switch ──────────────────── */
.track-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  user-select: none;
}

.track-toggle input { display: none; }

.track-toggle-slider {
  position: relative;
  width: 40px;
  height: 22px;
  background: var(--border);
  border-radius: 99px;
  flex-shrink: 0;
  transition: var(--transition);
}

.track-toggle-slider::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  transition: var(--transition);
}

.track-toggle input:checked ~ .track-toggle-slider {
  background: var(--primary);
}

.track-toggle input:checked ~ .track-toggle-slider::after {
  transform: translateX(18px);
}

.track-toggle-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}

.track-toggle input:checked ~ .track-toggle-label {
  color: var(--primary);
}

.cam-tabs {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.cam-tab {
  padding: 0.4rem 0.9rem;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface-alt);
  color: var(--text-muted);
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.cam-tab:hover {
  background: #dbeafe;
  color: var(--primary);
}

.cam-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(26,86,219,0.3);
}

/* 2-col viewer: narrow left [source + pose] | wide right [generated] */
.cam-viewer {
  display: grid;
  grid-template-columns: 1fr 2.5fr;   /* left ~29%, right ~71% */
  gap: 1.5rem;
  align-items: start;     /* each column takes its own height; JS syncs them */
}

/* Left column: JS sets height; source video is fixed, pose image flexes to fill */
.cam-left {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow: hidden;
}

.cam-right {
  display: flex;
  flex-direction: column;
}

/* ── Shared panel shell ─────────────────────────────── */
.cam-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cam-panel-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-align: center;
  padding: 0.3rem 0.75rem;
  background: var(--surface-alt);
  border-radius: 99px;
  width: fit-content;
  margin: 0 auto;
  flex-shrink: 0;
}

/* ── Source video — same width as camera trajectory ── */
.cam-panel video {
  width: 100%;            /* fills full left-column width */
  aspect-ratio: 960 / 480;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
  object-fit: cover;
  flex-shrink: 0;
  transition: opacity 0.22s ease;
}

/* ── Camera trajectory — same width, fills remaining height */
.cam-panel-pose {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cam-pose-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow);
  background: #fff;
}

.cam-panel-pose img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  transform-origin: center center;
  transition: transform 0.18s ease;
  user-select: none;
  -webkit-user-select: none;
}
.cam-pose-wrap.zoomed img  { cursor: grab; }
.cam-pose-wrap.dragging img { cursor: grabbing; transition: none; }

/* zoom in/out controls on the trajectory */
.cam-zoom-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  z-index: 2;
}

.cam-zoom-btn {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  border: none;
  background: rgba(15,23,42,0.6);
  color: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  transition: var(--transition);
}
.cam-zoom-btn:hover:not(:disabled) { background: var(--primary); }
.cam-zoom-btn:disabled { opacity: 0.4; cursor: default; }

/* ── Generated video — natural 960/480 ratio, no crop  */
.cam-panel-generated {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cam-panel-generated video {
  width: 100%;
  aspect-ratio: 960 / 480;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
  object-fit: cover;
  transition: opacity 0.22s ease;
}

.cam-panel-generated video.fading,
.cam-panel video.fading {
  opacity: 0;
}

/* ── Click-to-pause wrapper + overlay (camera gallery) ── */
.cam-viewer { cursor: pointer; }

.cam-vid-wrap {
  position: relative;
  width: 100%;
  flex-shrink: 0;
  line-height: 0;
}

.cam-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15,23,42,0.42);
  color: #fff;
  font-size: 1.7rem;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
  border-radius: var(--radius);
}
.cam-viewer.paused .cam-overlay { opacity: 1; }

/* ── Method / Framework ─────────────────────────────────── */
.framework-figure-wrap {
  margin: 0 0 2.75rem;
}

.framework-figure {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #fff;
  padding: 0.75rem;
  display: block;
}

.figure-caption {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.9rem;
  line-height: 1.6;
}

/* Pipeline step cards */
.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pipeline-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  transition: var(--transition);
  position: relative;
  min-width: 0;          /* allow grid track to shrink below content size */
}

.pipeline-step:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.pipeline-step-core {
  border-color: var(--primary);
  background: linear-gradient(180deg, #eff6ff 0%, var(--surface) 100%);
}

.step-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.step-head i {
  font-size: 1.35rem;
  color: var(--primary);
  margin-left: auto;
  opacity: 0.85;
}

.pipeline-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.55rem;
  letter-spacing: -0.01em;
}

.pipeline-step p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.pipeline-step strong { color: var(--text); font-weight: 600; }

/* Data-curation sub-block */
.method-subblock {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.subblock-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 1.5rem;
  letter-spacing: -0.01em;
}

.subblock-title i {
  color: var(--primary);
  margin-right: 0.5rem;
}

.subblock-lead {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 1.5rem;   /* full width — aligns with the figure below */
}
.subblock-lead strong { color: var(--text); font-weight: 600; }

/* Data-curation figure — full width (wide filmstrip aspect ratio) */
.curation-figure-wrap { margin: 0; }

.curation-figure-wrap img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ── Comparison with SOTA ───────────────────────────────── */
.section-inner-wide { max-width: 1300px; }

.cmp-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.cmp-select {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  background-color: #fff;
  border: 2px solid var(--border);
  border-radius: 99px;
  padding: 0.55rem 2.75rem 0.55rem 1.3rem;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231a56db' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1.1rem center;
  transition: var(--transition);
  min-width: 280px;
  text-align: center;
}
.cmp-select:hover  { border-color: var(--primary); }
.cmp-select:focus  { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.15); }

.cmp-nav {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
.cmp-nav:hover { border-color: var(--primary); color: var(--primary); background: #eff6ff; transform: translateY(-2px); }

.cmp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  cursor: pointer;
}

.cmp-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}

.cmp-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-align: center;
  padding: 0.3rem 0.85rem;
  background: var(--surface-alt);
  border-radius: 99px;
  width: fit-content;
  margin: 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.cmp-panel-ours .cmp-label { background: var(--primary); color: #fff; }
.cmp-star { color: #fde047; font-size: 0.72rem; }

.cmp-video-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.cmp-panel-ours .cmp-video-wrap {
  box-shadow: 0 0 0 3px var(--primary), var(--shadow);
}

.cmp-video {
  width: 100%;
  aspect-ratio: 832 / 480;
  object-fit: cover;
  display: block;
  background: #000;
}

.cmp-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15,23,42,0.5);
  color: #fff;
  font-size: 1.9rem;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
.cmp-grid.paused .cmp-overlay { opacity: 1; }

/* ── Subsection heading (Qualitative / Quantitative) ───── */
.subsec-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 2.75rem 0 0.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--border);
}
.subsec-title:first-of-type { margin-top: 0.75rem; }

/* ── Quantitative results table ─────────────────────────── */
.results-table-wrap {
  overflow-x: auto;
  margin: 0 0 0.6rem;
  -webkit-overflow-scrolling: touch;
}

.results-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}

.results-table th,
.results-table td {
  padding: 0.55rem 0.7rem;
  text-align: center;
  white-space: nowrap;
}

.results-table thead tr:first-child th {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}
.results-table thead tr:last-child th {
  font-weight: 700;
  color: var(--text);
  border-bottom: 2px solid var(--text-muted);
}
.results-table .ta-left { text-align: left; }

.results-table tbody td {
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.results-table tbody tr.group-start td { border-top: 2px solid var(--border); }

.results-table tbody tr.ours { background: #eff6ff; }
.results-table tbody tr.ours td { color: var(--text); font-weight: 700; }
.results-table tbody tr.ours .ta-left { color: var(--primary); }

.results-table .imp {
  color: #16a34a;
  font-weight: 600;
  font-size: 0.74rem;
  margin-left: 4px;
}

.table-caption {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.55;
  margin: 0;
}

/* ── BibTeX ──────────────────────────────────────────────── */
.bibtex-box {
  position: relative;
  background: #0f172a;
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  overflow-x: auto;
}

.bibtex-copy {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: #cbd5e1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  transition: var(--transition);
}
.bibtex-copy:hover { background: rgba(255,255,255,0.16); color: #fff; }
.bibtex-copy.copied { background: #16a34a; border-color: #16a34a; color: #fff; }

.bibtex-box pre {
  margin: 0;
  color: #e2e8f0;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  background: transparent;
}

/* ── Footer ──────────────────────────────────────────────── */
.t2v-footer {
  background: #0f172a;
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.88rem;
}

.t2v-footer a { color: rgba(255,255,255,0.7); }
.t2v-footer a:hover { color: #fff; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 980px) {
  .cmp-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .pipeline-steps { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cam-viewer { grid-template-columns: 1fr; }
  .teaser-grid { grid-template-columns: 1fr; }
  .cmp-grid { grid-template-columns: 1fr; }
  .cmp-select { min-width: 0; flex: 1; }
}

@media (max-width: 600px) {
  .t2v-nav-brand { display: none; }
  .t2v-nav-inner { justify-content: center; padding: 0.55rem 1rem; }
  .t2v-nav-links { gap: 1.05rem; }
  .t2v-nav-links a { font-size: 0.82rem; }
}