:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: #e5e5e5;
  --pill-bg: #111111;
  --pill-text: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 36px 0 72px;
}

.hero {
  text-align: center;
  padding: 8px 0 18px;
}

h1,
h2,
h3 {
  font-family: "Libre Baskerville", serif;
  font-weight: 400;
}

h1 {
  margin: 0 auto;
  max-width: 980px;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.authors-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 22px;
  max-width: 920px;
  margin: 26px auto 0;
}

.author-card {
  min-width: 0;
}

.author-name {
  font-size: 1rem;
  font-weight: 500;
}

.author-email {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
  word-break: break-word;
}

.hero-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--pill-bg);
  color: var(--pill-text);
  font-size: 1rem;
  font-weight: 500;
}

.paper-section {
  padding: 34px 0 0;
  border-top: 1px solid var(--line);
  margin-top: 34px;
}

.paper-section h2 {
  margin: 0 0 18px;
  text-align: center;
  font-size: clamp(2rem, 3vw, 2.35rem);
}

.copy-block {
  width: min(920px, 100%);
  margin: 0 auto;
}

.copy-block p,
.citation-note {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.copy-block p + p {
  margin-top: 14px;
}

.figure-block {
  width: min(760px, 100%);
  margin: 24px auto 0;
}

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

.figure-block figcaption {
  margin-top: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.96rem;
}

.svg-label {
  font-family: "Libre Baskerville", serif;
  font-size: 28px;
  fill: #111111;
}

.svg-label.large {
  font-size: 34px;
}

.svg-box-text {
  font-family: "Inter", sans-serif;
  font-size: 34px;
  font-weight: 500;
  fill: #ffffff;
}

.svg-robot-text {
  font-family: "Inter", sans-serif;
  font-size: 34px;
  font-weight: 500;
  fill: #ffffff;
}

.demo-intro {
  margin-bottom: 26px;
}

.demo-item + .demo-item {
  margin-top: 34px;
}

.demo-caption {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.demo-item h3 {
  margin: 0;
  font-size: 1.38rem;
  text-align: center;
}

.rrd-link {
  color: var(--muted);
  font-size: 0.96rem;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.demo-video {
  width: min(820px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.demo-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #d9d9d9;
}

.citation-section {
  padding-bottom: 8px;
}

.citation-note {
  text-align: center;
  margin-bottom: 14px;
}

pre {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 22px;
  overflow-x: auto;
  background: #f7f7f7;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 0.95rem;
  line-height: 1.65;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (max-width: 768px) {
  .page {
    width: min(100vw - 24px, 1080px);
    padding-top: 24px;
  }

  .authors-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hero-links a {
    min-width: 96px;
    padding: 11px 18px;
  }

  .paper-section {
    padding-top: 26px;
    margin-top: 26px;
  }

  .svg-label {
    font-size: 18px;
  }

  .svg-label.large {
    font-size: 20px;
  }

  .svg-box-text,
  .svg-robot-text {
    font-size: 22px;
  }

  .demo-caption {
    gap: 10px;
  }

  .demo-item h3 {
    font-size: 1.2rem;
  }
}