:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #555555;
  --border: rgba(17, 17, 17, 0.12);
  --link: #111111;
  --caption: #333333;
  --serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Source Sans 3", "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --content: 56rem;
  --media: 56rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 0.875rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
  color: rgba(17, 17, 17, 0.7);
}

.page {
  width: min(100%, calc(var(--content) + 6rem));
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

@media (min-width: 768px) {
  .page {
    padding: 3rem 3rem 6rem;
  }
}

.site-header {
  max-width: var(--content);
  margin: 0 auto 3.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand {
  font-family: var(--serif);
  font-size: 1.75rem;
  line-height: 1.2;
  text-decoration: none;
  color: var(--fg);
}

.brand:hover {
  color: var(--fg);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
}

.nav a {
  text-underline-offset: 0.5rem;
}

.hero {
  max-width: var(--content);
  margin: 0 auto 2.5rem;
}

.hero h1 {
  margin: 0 0 1.5rem;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem 1rem;
  font-family: var(--mono);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

@media (min-width: 768px) {
  .meta {
    grid-template-columns: 7.5rem 1fr;
    gap: 0.25rem 0.5rem;
  }
}

.meta dt {
  color: var(--muted);
}

.meta dd {
  margin: 0;
}

.meta a {
  color: var(--fg);
}

.figure {
  width: min(100%, var(--media));
  margin: 0 auto 2.5rem;
}

.figure--hero {
  margin-bottom: 2.75rem;
}

.figure-frame {
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
}

.figure-frame img,
.figure-frame video {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.figure-caption {
  max-width: var(--content);
  margin: 0.9rem auto 0;
  color: var(--caption);
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.6;
}

.figure-caption strong,
.figure-caption .caption-title {
  font-weight: 600;
  color: var(--fg);
}

.figure-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.abstract {
  max-width: var(--content);
  margin: 0 auto 3.5rem;
}

.abstract h2 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
}

.abstract p {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.7;
  color: #222;
}

.abstract .model-name {
  font-weight: 600;
}

.section {
  margin-bottom: 3.25rem;
}

.section-heading {
  max-width: var(--content);
  margin: 0 auto 1.25rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
}

.footer {
  max-width: var(--content);
  margin: 4rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}