/* Minimal academic-page styling, mostly cribbed from typical Nerfies / Self-Forcing++ */

:root {
  /* Descript brand palette — Red & Maroon ramps only */
  --rec-red:     #F73B3B; /* Red 450  — CTA, sparingly */
  --rec-red-dk:  #B81B1E; /* Red 600  — CTA hover */
  --red-50:      #FFE8DB;
  --light-peach: #FFD6C5; /* Red 100  — soft tint */
  --peach:       #FF8969; /* Red 300 */
  --canvas:      #FFF8F4; /* Red 0    — page background */
  --edit-maroon: #651A39; /* Maroon 750 — primary accent */
  --maroon-900:  #390A1A;
  --neutral-50:  #F1EAED;
  --neutral-100: #E4DDE0;
  --neutral-200: #D1C7CB;
  --neutral-600: #715661;
  --screen-black:#110A0D;

  /* Semantic tokens */
  --fg:      var(--screen-black);
  --fg-2:    var(--neutral-600);
  --bg:      #ffffff;
  --acc:     var(--edit-maroon);
  --acc-2:   var(--rec-red);
  --rule:    var(--neutral-100);
  --ours-bg: var(--light-peach);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 18px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
        sans-serif;
}

.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 32px;
}

section {
  padding: 56px 0;
  border-bottom: 1px solid var(--rule);
}

section:last-of-type {
  border-bottom: none;
}

h1, h2, h3 {
  color: var(--fg);
  font-weight: 600;
}

h1 {
  font-size: 40px;
  line-height: 1.2;
  margin: 0 0 16px;
}

h2 {
  font-size: 30px;
  margin: 0 0 24px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--acc);
  display: inline-block;
}

h3 {
  font-size: 22px;
  margin: 40px 0 16px;
}

a { color: var(--acc); text-decoration: none; }
a:hover { text-decoration: underline; }

/* -------- header -------- */
header {
  background: var(--canvas);
  padding: 56px 0 40px;
  text-align: center;
}
header .authors {
  font-size: 19px;
  color: var(--fg-2);
  margin-bottom: 4px;
}
header .authors span { margin: 0 8px; }

header .affiliations {
  font-size: 16px;
  color: var(--edit-maroon);
  font-weight: 600;
  margin-bottom: 20px;
}

header .links { margin-top: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  margin: 0 4px;
  background: var(--rec-red);
  color: #ffffff;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background-color 0.15s ease;
}
.btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}
.btn:hover {
  background: var(--rec-red-dk);
  text-decoration: none;
}

/* -------- teaser -------- */
.teaser {
  background: var(--canvas);
  text-align: center;
  padding-top: 0px !important;
}
.teaser > .container > video,
.teaser > .container > iframe {
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.teaser .caption {
  margin: 12px auto 0;
  color: var(--fg-2);
  font-size: 19px;
  line-height: 1.55;
  text-align: left;
}

/* -------- figures -------- */
figure {
  margin: 32px auto;
  text-align: center;
  max-width: 720px;
}
figure img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: #fff;
}
figure.wide   { max-width: 880px; }
figure.narrow { max-width: 480px; }
.method-figs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 24px;
  margin: 32px auto;
  max-width: 1200px;
  align-items: stretch;
}
.method-figs figure {
  margin: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
}
.method-figs figure img {
  width: 100%;
  height: 320px;
  object-fit: contain;
  margin: 0;
  background: #ffffff;
}
.method-figs figcaption {
  margin-top: 12px;
}
figcaption {
  margin-top: 10px;
  color: var(--fg-2);
  font-size: 16px;
  text-align: left;
}

/* -------- table -------- */
.table-wrap { overflow-x: auto; }

table.results {
  margin: 16px auto;
  border-collapse: collapse;
  font-size: 16px;
  min-width: 760px;
}
table.results th,
table.results td {
  padding: 10px 14px;
  border: 1px solid var(--rule);
  text-align: center;
}
table.results thead th {
  background: var(--neutral-50);
  font-weight: 600;
}
table.results tr.ours td {
  background: var(--ours-bg);
  color: var(--edit-maroon);
}

/* -------- video grid -------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

/* Teaser hero: featured Pose video on top, 2x2 below */
.teaser-grid {
  grid-template-columns: 1fr 1fr;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.teaser-grid .featured {
  grid-column: 1 / -1;
  width: 100%;
}

/* 3-column layout for Wan qualitative comparisons */
.wan-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px 20px;
  margin-top: 16px;
  align-items: stretch;
}
.wan-colhead {
  text-align: left;
  font-weight: 600;
  font-size: 18px;
  color: var(--fg);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--acc);
}
.wan-grid .wan-source {
  grid-row: 2 / span 2;
  align-self: start;
}

/* 2-column layout for additional LTX results (input | output, per modality) */
.ltx-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
  margin-top: 16px;
  align-items: stretch;
}
.ltx-colhead {
  text-align: left;
  font-weight: 600;
  font-size: 18px;
  color: var(--fg);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--acc);
}
.ltx-rowhead {
  grid-column: 1 / -1;
  margin: 24px 0 4px;
  font-size: 20px;
  color: var(--fg);
}
.ltx-rowhead:first-of-type {
  margin-top: 12px;
}
.vid {
  background: #ffffff;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 8px;
}
.vid.ours {
  border-color: var(--edit-maroon);
  background: var(--ours-bg);
}
.vid .vlabel {
  font-size: 15px;
  color: var(--fg-2);
  margin-bottom: 8px;
  font-weight: 500;
}
.vid.ours .vlabel { color: var(--edit-maroon); font-weight: 600; }
.vid video,
.vid iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  border: 0;
  background: #000;
  border-radius: 3px;
}

/* -------- code/bibtex -------- */
pre {
  background: var(--neutral-50);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px;
  overflow-x: auto;
  font-size: 15px;
  line-height: 1.55;
  font-family: ui-monospace, Menlo, Monaco, Consolas, monospace;
}

/* -------- footer -------- */
footer {
  padding: 32px 0;
  text-align: center;
}
footer .footer-logo {
  margin-bottom: 16px;
  line-height: 0;
}
footer .footer-logo img {
  display: inline-block;
  width: auto;
  height: 22px;
  max-height: 22px;
  max-width: 110px;
  opacity: 0.75;
}
footer .muted {
  color: var(--fg-2);
  font-size: 15px;
}