:root {
  color-scheme: light;
  --ink: #16201d;
  --muted: #5f6964;
  --paper: #fbfbf8;
  --panel: #ffffff;
  --line: #dfe5df;
  --green: #2d6f55;
  --blue: #315f86;
  --gold: #c99a2e;
  --shadow: 0 18px 45px rgba(22, 32, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(180deg, #f5f8f4 0%, #eef3ef 68%, #fbfbf8 100%);
}

.topbar {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: clamp(14px, 3vw, 36px);
  padding: 22px clamp(18px, 4vw, 56px);
  color: rgba(22, 32, 29, 0.72);
  font-size: 14px;
  font-weight: 650;
}

.topbar a {
  text-decoration: none;
}

.topbar a:hover {
  color: var(--ink);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 112px 0 44px;
  color: var(--ink);
}

.venue,
.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(56px, 11vw, 132px);
  line-height: 0.92;
  font-weight: 820;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: 0;
}

.subtitle {
  max-width: 920px;
  margin-bottom: 20px;
  font-size: clamp(21px, 3vw, 36px);
  line-height: 1.18;
  font-weight: 650;
}

.authors,
.affiliations,
.author-notes {
  max-width: 980px;
  color: var(--muted);
  font-size: clamp(15px, 1.7vw, 20px);
}

.authors {
  margin-bottom: 8px;
}

.authors sup,
.affiliations sup,
.author-notes sup {
  font-size: 0.68em;
  line-height: 0;
}

.affiliations {
  margin-bottom: 8px;
}

.author-notes {
  margin-bottom: 30px;
  font-size: 15px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid #cfd9d1;
  border-radius: 8px;
  padding: 10px 18px;
  color: var(--ink);
  font-weight: 730;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.64);
}

.button svg {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button .brand-icon {
  fill: currentColor;
  stroke: none;
}

.button .arxiv-icon {
  stroke-width: 2;
}

.button.primary {
  border-color: var(--green);
  background: var(--green);
  color: #ffffff;
}

.button.disabled {
  color: rgba(22, 32, 29, 0.46);
}

.hero-teaser {
  margin: 36px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.hero-teaser img {
  display: block;
  width: 100%;
  height: auto;
}

section {
  padding: clamp(58px, 8vw, 104px) 0;
}

.showcase {
  padding: clamp(48px, 7vw, 86px) 0;
}

.section-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.section-inner.narrow {
  width: min(860px, calc(100% - 40px));
}

.tldr {
  padding: 38px 0;
  background: #f2f6f2;
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tldr p {
  margin-bottom: 0;
  font-size: clamp(20px, 3vw, 31px);
  line-height: 1.28;
  font-weight: 680;
}

.tldr .eyebrow {
  color: var(--green);
}

.band {
  background: #eef3ef;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.lead {
  max-width: 850px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 19px;
}

.method-narrative {
  display: grid;
  gap: 18px;
  max-width: 1000px;
  margin-bottom: 34px;
}

.method-narrative p {
  margin: 0;
  color: #3d4944;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.7;
}

.method-block {
  display: grid;
  gap: 18px;
  margin-top: 36px;
}

.method-block:first-of-type {
  margin-top: 0;
}

.method-caption {
  max-width: 900px;
}

.method-caption h3 {
  margin: 0 0 10px;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.12;
}

.method-caption p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.method-caption p + p {
  margin-top: 12px;
}

.method-grid {
  grid-template-columns: minmax(280px, 0.86fr) minmax(0, 1.4fr);
  align-items: center;
  gap: clamp(22px, 4vw, 44px);
}

.method-grid .method-caption {
  max-width: none;
}

.wide-figure {
  margin: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.wide-figure + .wide-figure {
  margin-top: 22px;
}

.wide-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.benchmark-results {
  display: grid;
  gap: 30px;
}

.benchmark-block {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 28px);
}

.benchmark-heading {
  margin-bottom: 18px;
}

.benchmark-heading .eyebrow {
  display: block;
  margin-bottom: 7px;
}

.benchmark-heading h3 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

.video-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.video-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.video-placeholder {
  display: grid;
  min-height: 0;
  aspect-ratio: 1;
  place-items: center;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(49, 95, 134, 0.08) 25%, transparent 25%) 0 0 /
      28px 28px,
    linear-gradient(135deg, transparent 75%, rgba(49, 95, 134, 0.08) 75%) 0 0 /
      28px 28px,
    linear-gradient(180deg, #f8faf7, #e7eee8);
  color: rgba(22, 32, 29, 0.62);
  text-align: center;
}

.video-placeholder.output {
  background:
    radial-gradient(circle at 50% 45%, rgba(45, 111, 85, 0.16), transparent 34%),
    linear-gradient(180deg, #f8fbf8, #e4eee7);
}

.video-placeholder span {
  display: block;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 820;
  line-height: 1;
}

.video-placeholder small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.result-browser {
  display: grid;
  gap: 18px;
}

.result-pager {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.result-pager button {
  width: 38px;
  height: 38px;
  border: 1px solid #cfd9d1;
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.result-pager button.is-active {
  border-color: var(--green);
  background: var(--green);
  color: #ffffff;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.comparison-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.comparison-card h4 {
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.2;
}

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

.comparison-video {
  margin: 0;
  min-width: 0;
}

.comparison-video + .comparison-video {
  border-left: 1px solid var(--line);
}

.comparison-video video {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  background: #eef3ef;
  object-fit: cover;
}

.comparison-video figcaption {
  border-top: 1px solid var(--line);
}

figcaption {
  padding: 12px 14px 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

pre {
  overflow-x: auto;
  margin: 0;
  border: 1px solid #cfd9d1;
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--ink);
  padding: 20px;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.56);
}

.notes {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
}

@media (max-width: 760px) {
  .hero {
    min-height: 100vh;
  }

  .topbar {
    justify-content: flex-start;
    overflow-x: auto;
    padding-inline: 20px;
  }

  .hero-copy {
    width: min(100% - 28px, 1120px);
    padding: 96px 0 34px;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .hero-teaser {
    margin-top: 28px;
  }

  .video-pair {
    grid-template-columns: 1fr;
  }

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

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

  .section-inner,
  .section-inner.narrow {
    width: min(100% - 28px, 1120px);
  }
}