/* =========================================================
   NVIDIA Cosmos Lab — Project Page Styles
   Light content area; dark header/footer come from style.css
   ========================================================= */

:root {
  --page-max-width: 1000px;
}

html { scroll-behavior: smooth; }

/* Canvas background — light sage with green DNA from #76b900 */
body {
  background: #f1f3ee;
  color: rgb(26,26,26);
  font-size: 16.5px;
  line-height: 1.4em;
  font-weight: 400;
}

/* ---- Page wrapper ---- */
.project-page {
  background: transparent;
  color: #1a1a1a;
  min-height: calc(100svh - 60px);
  padding: 40px clamp(12px, 3vw, 40px) 80px;
}
.project-page img,
.project-page video {
  max-width: 100%;
}


/* ---- Section layout ---- */
.proj-section {
  max-width: var(--page-max-width);
  margin: 20px auto 0;
  padding: 40px clamp(12px, 4vw, 40px);
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}
.proj-section + .proj-section {
  border-top: none;
  padding-top: 40px;
}

/* ---- Section headings ---- */
.proj-heading {
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
  text-align: left;
  display: block;
  padding-bottom: 10px;
  border-bottom: 2px solid #e8e8e8;
}
.model-label {
  font-size: 0.78rem;
  color: #999;
  text-align: left;
  margin: -8px 0 16px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}

.proj-subheading {
  font-size: 1.1rem;
  font-weight: 700;
  color: #76b900;
  margin: 28px 0 10px;
  text-align: left;
  letter-spacing: -0.01em;
}

.heading-anchor { display: none; }

.proj-heading .model-name,
.proj-subheading .model-name {
  font-weight: 400;
  color: #888;
  font-size: 0.85em;
  letter-spacing: 0;
}

/* ---- Hero (auto-populated by project.js from JSON) ---- */
.project-hero {
  max-width: var(--page-max-width);
  margin: 0 auto;
  /* padding: 24px clamp(12px, 4vw, 40px) 32px; */
  padding: 24px 0 32px;
  text-align: left;
}
.project-title {
  font-size: clamp(1.4rem, 2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #333;
  line-height: 1.3;
  margin-bottom: 24px;
}
.title-special {
  color: #76b900;
  font-size: 1.15em;
}
.project-title.title-no-special {
  color: #333;
  margin-bottom: 24px;
}
.project-subtitle {
  font-size: clamp(1.4rem, 2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #333;
  line-height: 1.3;
  margin-bottom: 24px;
}
.project-authors {
  font-size: 1rem;
  font-weight: 400;
  color: #555;
  margin-bottom: 18px;
}
.project-authors a { color: #76b900; }
.project-authors a:hover { text-decoration: underline; }
.project-venue {
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  flex-wrap: wrap;
}
.venue-pill {
  display: inline-block;
  color: #c27b1d;
  font-size: 1.05rem;
  font-weight: 500;
}
.venue-pill.venue-technical-report { color: #888; }
.award-pill {
  display: inline-block;
  color: #b0401a;
  font-size: 1.05rem;
  font-weight: 500;
}
.award-pill::before {
  content: '·';
  color: #bbb;
  margin-right: 8px;
}
.project-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px;
  margin-top: 8px;
}
.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 20px;
  border-radius: 100px;
  border: none;
  color: #fff;
  font-size: 0.83rem;
  font-weight: 600;
  background: #76b900;
  box-shadow: 0 2px 8px rgba(118, 185, 0, 0.35);
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.link-btn:hover {
  background: #63a000;
  box-shadow: 0 4px 14px rgba(118, 185, 0, 0.45);
  transform: translateY(-1px);
}

/* ---- Teaser ---- */
.teaser {
  max-width: var(--page-max-width);
  margin: 20px auto 0;
}
.teaser-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}
.teaser iframe,
.teaser video,
.teaser img {
  width: 100%;
  border-radius: 8px;
  display: block;
}
.teaser iframe,
.teaser video { aspect-ratio: 16 / 9; }
.teaser img { max-height: 640px; object-fit: contain; }

/* ---- Lists inside project sections ---- */
.proj-section ul,
.proj-section ol {
  padding-left: 1.5em;
  margin: 8px 0;
}
.proj-section li { margin-bottom: 4px; }
.proj-section li:last-child { margin-bottom: 0; }

/* ---- Abstract ---- */
.abstract p {
  font-weight: 400;
}
.abstract p + p { margin-top: 14px; }
.abstract p a { color: #76b900; font-weight: 500; }
.abstract p a:hover { text-decoration: underline; }

/* ---- Tables ---- */
.proj-table-wrap {
  overflow-x: auto;
  margin: 1.5rem clamp(0px, 4vw, 40px);
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  position: relative;
}
.proj-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.875rem;
  background: #ffffff;
}
.proj-table th {
  background: #f0f0f0;
  border-bottom: 1.5px solid #d4d4d4;
  padding: 9px 14px;
  font-weight: 600;
  color: #222;
  text-align: left;
  font-size: 0.82rem;
}
.proj-table th.center { text-align: center; }
.proj-table td {
  border-bottom: 1px solid #ececec;
  padding: 8px 14px;
  color: #333;
  font-weight: 400;
}
.proj-table td.center { text-align: center; }
.proj-table tbody tr:last-child td { border-bottom: none; }
.proj-table tbody tr:hover td { background: #f8f8f8; }
.proj-table .best {
  font-weight: 700;
  color: #76b900;
  background: rgba(118,185,0,0.08);
}
.proj-table tr.section-header td {
  background: #ebebeb;
  font-weight: 600;
  color: #111;
  border-top: 1px solid #d0d0d0;
  font-size: 0.8rem;
  text-transform: uppercase;
}
.proj-table tr.section-end td {
  border-bottom: 1.5px solid #d4d4d4;
}

/* ---- Results / figure grid ---- */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.results-grid figure {
  background: #ffffff;
  border-radius: 10px;
  padding: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.results-grid figure:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.13);
}
.results-grid figure video,
.results-grid figure img {
  width: 100%;
  border-radius: 6px;
  display: block;
}
.results-grid figcaption {
  font-size: 0.78rem;
  color: #666;
  text-align: center;
  margin-top: 6px;
  padding: 0 4px;
  font-weight: 400;
}

/* ---- Carousel ---- */
.carousel-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  margin: 1.5rem 0;
  min-width: 0;
  overflow: hidden;
}
.carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 8px;
  background: #ffffff;
}
.carousel-videos {
  display: flex;
  transition: transform 0.45s ease-in-out;
  width: 100%;
}
.carousel-figure {
  flex: 0 0 100%;
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
}
.carousel-figure video {
  width: 100%;
  display: block;
  max-height: 620px;
  object-fit: cover;
}
.carousel-figure figcaption {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 12px 4px;
  font-size: 0.8rem;
  font-weight: 400;
  color: #444;
  background: #ffffff;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-align: center;
}
.carousel-figure figcaption.expanded {
  display: block;
  -webkit-line-clamp: unset;
  overflow: visible;
  text-align: justify;
  padding-bottom: 8px;
}
.caption-toggle {
  background: none;
  border: none;
  color: #76b900;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 400;
  padding: 4px 12px 8px;
  align-self: flex-end;
  background: #ffffff;
  width: 100%;
  text-align: right;
}
.caption-toggle:hover { text-decoration: underline; }
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background 0.2s ease;
}
.carousel-btn:hover { background: rgba(118, 185, 0, 0.75); }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }

.carousel-videos-rl {
  display: flex;
  transition: transform 0.45s ease-in-out;
  width: 100%;
}
.carousel-btn-rl {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background 0.2s ease;
}
.carousel-btn-rl:hover { background: rgba(118, 185, 0, 0.75); }
.carousel-btn-rl.prev { left: 10px; }
.carousel-btn-rl.next { right: 10px; }

/* ---- Carousel slide counter ---- */
.carousel-counter {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 0.72rem;
  padding: 2px 10px;
  border-radius: 100px;
  pointer-events: none;
  z-index: 10;
}

/* ---- Carousel dot indicators ---- */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 8px 0 2px;
}
.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ccc;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}
.carousel-dot.active,
.carousel-dot:hover { background: #76b900; }

/* ---- New proj-carousel (for future template use) ---- */
.proj-carousel { position: relative; }
.proj-carousel-track {
  display: flex;
  overflow: hidden;
  gap: 12px;
  scroll-snap-type: x mandatory;
}
.proj-carousel-item { flex: 0 0 auto; scroll-snap-align: start; }
.proj-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.45);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  color: #fff;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.proj-carousel-btn.prev { left: -18px; }
.proj-carousel-btn.next { right: -18px; }

/* ---- Citation (pre-filled by project.js) ---- */
.citation-block { position: relative; }
.citation pre {
  background: #f6f6f6;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 18px 20px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  font-size: 0.78rem;
  font-weight: 400;
  color: #333;
  overflow-x: auto;
  line-height: 1.4;
}
.copy-btn {
  position: absolute;
  bottom: 10px;
  right: 10px;
  padding: 5px 13px;
  border-radius: 4px;
  border: 1.5px solid #76b900;
  background: rgba(118,185,0,0.07);
  color: #5a8e00;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.copy-btn:hover {
  background: #76b900;
  color: #fff;
}

/* ---- Footer transition (project pages only) ---- */
.project-page + .site-footer {
  border-top: none;
}


/* ---- Cross-links bar ---- */
.crosslink-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
}

/* ---- Standalone figure ---- */
.figure-block {
  margin: 1.5rem auto;
  max-width: 80%;
}
.figure-block img,
.figure-block video {
  width: 100%;
  border-radius: 8px;
  display: block;
}
.figure-block figcaption {
  font-size: 0.8rem;
  color: #666;
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

/* ---- Benchmark note text ---- */
.bench-note {
  font-size: 0.875rem;
  font-weight: 400;
  color: #555;
  margin: 20px 0 10px;
  line-height: 1.5;
  text-align: center;
}
.project-page > .bench-note { color: #777; }

/* ---- Scroll reveal ---- */
.reveal-start {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.reveal-start.revealed {
  opacity: 1;
  transform: none;
}

/* Responsive 16:9 embed (YouTube iframes) */
.video-embed {
  position: relative;
  width: 100%;
  margin: 1.5rem 0;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 8px;
}
.video-embed iframe,
.video-embed video {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* Side-by-side images inside a figure-block */
.figure-block-half { display: flex; gap: 1rem; justify-content: center; }
.figure-block-half img,
.figure-block-half video { width: 48%; height: auto; border-radius: 8px; }

/* Vertical table row label */
.vert { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 0.85rem; white-space: nowrap; }

/* Caption gray style */
.caption-gray { color: #808080; font-size: 0.85rem; }

/* col-span-2 grid utility */
.col-span-2 { grid-column: span 2; }

/* ---- Bootstrap nav-tabs replacement (neuralangelo) ---- */
.nav-tabs {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-bottom: 16px; padding: 0; list-style: none;
}
.nav-tabs .nav-item { list-style: none; }
.nav-tabs .nav-link {
  display: inline-block; padding: 6px 14px; border-radius: 6px;
  border: 1px solid #e0e0e0; font-size: 0.85rem; color: #555;
  cursor: pointer; background: #f8f8f8;
  transition: background 0.15s, color 0.15s;
}
.nav-tabs .nav-link.active,
.nav-tabs .nav-link:hover { background: #76b900; color: #fff; border-color: #76b900; }

/* ---- magic3d layout classes ---- */
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.column-4 { flex: 1; min-width: 0; }
.vid-prompt-4 { flex: 1; font-size: 0.82rem; color: #555; text-align: center; min-width: 0; }
.text-old { text-decoration: line-through; color: #aaa; }
.text-new { color: #76b900; font-weight: 600; }
.btn { display: inline-block; padding: 6px 14px; border-radius: 6px; font-size: 0.8rem; font-weight: 600; cursor: pointer; }
.btn-primary { background: #76b900; color: #fff; border: none; }
.btn-primary2 { background: #fff; color: #76b900; border: 1px solid #76b900; }
.mesh-button, .mesh-button2 { text-align: center; margin-top: 8px; }
.mesh-button2 { display: none; }
.video-compare-container { position: relative; width: 100%; }
.videoMerge { display: block; width: 100%; cursor: ew-resize; }
.mesh-viewer { width: 100%; height: 320px; display: none; border-radius: 8px; }

/* ---- Utility additions ---- */
.proj-section hr { border: none; border-top: 1px solid #e0e0e0; margin: 24px 0; }
.caption { color: #808080; font-size: 0.85rem; }
.video-pair { display: flex; gap: 16px; flex-wrap: wrap; }
.video-pair .video-embed { flex: 1; min-width: 280px; }

/* ---- Page nav ---- */
.page-nav {
  max-width: var(--page-max-width);
  margin: 48px auto 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  border-radius: 100px;
  border: 1.5px solid #ccc;
  background: transparent;
  color: #666;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.page-nav-btn:hover {
  border-color: #76b900;
  color: #76b900;
}

/* ---- Responsive ---- */
@media (max-width: 639px) {
  .project-hero { padding-bottom: 20px; }
  .results-grid { grid-template-columns: 1fr; }
  .proj-carousel-btn { display: none; }
  .figure-block { max-width: 100%; }
}

/* artiscene video grid */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 0 auto; padding: 20px 0; }
.video-grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 0 auto; padding: 20px 0; }
.video-item { width: 100%; display: flex; flex-direction: column; gap: 10px; }
.video-item video { width: 100%; height: 420px; object-fit: cover; background: #f0f0f0; }
.video-prompt { font-size: 17px; text-align: center; padding: 10px; background: #f9f9f9; border-radius: 4px; }
@media (max-width: 768px) { .video-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .video-grid { grid-template-columns: 1fr; } }

/* ---- Utility classes ---- */
.align-center { display: block; margin: 0 auto; max-width: 100%; }
.all-center   { display: block; margin: auto; }

/* Grid layouts */
.grid-2col   { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-bottom: 8px; }
.grid-4col   { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-bottom: 1rem; }
.grid-3-2col { display: grid; grid-template-columns: 3fr 2fr; }

/* Media sizing */
.aspect-1-1  { aspect-ratio: 1 / 1; width: 100%; }
.media-full  { width: 100%; height: auto; }

/* Flex row */
.flex-wrap-row { display: flex; gap: 1.5em; flex-wrap: wrap; margin-bottom: 0.5em; }

/* Centered image with max-width override */
.img-centered { display: block; margin: 0 auto; max-width: 60%; height: auto; }

/* Table separator columns */
.col-sep    { border-left: 1px solid #ccc; }
.col-sep-lt { border-left: 1px solid #e4e4e4; }

/* Rotated grid label (diffcollage) */
.grid-label { margin: 5px; transform: rotate(-90deg); }

/* Inline improvement text */
.text-improvement { color: green; font-size: 0.9em; }

/* compare layout (implicit-warping) */
.compare-row { display: flex; justify-content: space-around; }
.compare-col-20 { width: 20%; }
.compare-col-80 { width: 80%; }