:root {
  color-scheme: light;
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --soft: #e2e8f0;
  --primary: #1d4ed8;
  --primary-dark: #1e3a8a;
  --accent: #16a34a;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

img,
video {
  display: block;
  max-width: 100%;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.86);
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  color: var(--primary-dark);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--primary);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(56px, 8vw, 108px) clamp(20px, 5vw, 72px) 48px;
}

.hero-content h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.venue,
.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.authors {
  margin: 26px 0 10px;
  color: #1e293b;
  font-size: 20px;
  font-weight: 650;
}

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

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--soft);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

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

.button.muted {
  color: var(--muted);
}

.hero-media,
.wide-figure,
.gallery-grid figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--soft);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-media figcaption,
.wide-figure figcaption,
.gallery-grid figcaption {
  padding: 14px 18px 18px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 48px clamp(20px, 5vw, 72px);
}

.section.narrow {
  max-width: 1000px;
  margin: 0 auto;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 26px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.section h3 {
  margin: 0 0 10px;
  font-size: 21px;
}

.section p {
  color: var(--muted);
}

.video-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 22px;
}

.video-card,
.info-card,
.metric,
.compact-card {
  border: 1px solid var(--soft);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: 0 16px 44px rgba(15, 23, 42, 0.08);
}

.video-card {
  padding: 18px;
}

.video-card video {
  width: 100%;
  overflow: hidden;
  border-radius: 20px;
  background: #0f172a;
}

.compact-card {
  padding: 28px;
}

.compact-card ul {
  margin: 16px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.wide-figure img {
  width: 100%;
}

.card-grid,
.metric-grid,
.gallery-grid,
.key-results-board,
.supplement-grid {
  display: grid;
  gap: 20px;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.info-card {
  padding: 28px;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 22px;
}

.metric {
  padding: 26px;
}

.metric strong {
  display: block;
  color: var(--primary);
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-weight: 650;
}

.gallery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.key-results-board {
  grid-template-columns: 1.2fr 1fr;
  grid-auto-rows: minmax(250px, auto);
  align-items: stretch;
  margin-top: 22px;
}

.key-result-card,
.supplement-card {
  overflow: hidden;
  border: 1px solid var(--soft);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: 0 16px 44px rgba(15, 23, 42, 0.08);
}

.key-result-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.key-result-large {
  grid-row: span 2;
}

.key-result-wide {
  grid-column: 1 / -1;
}

.key-result-card img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  max-height: 460px;
  padding: 18px;
  object-fit: contain;
  background: #ffffff;
}

.key-result-large img {
  max-height: 620px;
}

.key-result-wide img {
  max-height: 520px;
}

.key-result-card div {
  padding: 18px 22px 22px;
  border-top: 1px solid var(--soft);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.key-result-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.key-result-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.supplement-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.supplement-wide {
  grid-column: 1 / -1;
}

.supplement-card img {
  width: 100%;
  height: 300px;
  padding: 16px;
  object-fit: contain;
  border-bottom: 1px solid var(--soft);
  background: #ffffff;
}

.supplement-wide img {
  height: 560px;
  object-position: top center;
}

.supplement-card div {
  padding: 18px 22px 22px;
}

.supplement-card h3 {
  margin: 0 0 8px;
}

.supplement-card p {
  margin-bottom: 0;
}

pre {
  overflow-x: auto;
  padding: 22px;
  border: 1px solid var(--soft);
  border-radius: 20px;
  background: #0f172a;
  color: #e2e8f0;
}

.footer {
  padding: 36px clamp(20px, 5vw, 72px) 56px;
  color: var(--muted);
  text-align: center;
}

.footer a {
  color: var(--primary);
  font-weight: 700;
}

@media (max-width: 980px) {
  .hero,
  .video-grid,
  .card-grid,
  .metric-grid,
  .gallery-grid,
  .key-results-board,
  .supplement-grid {
    grid-template-columns: 1fr;
  }

  .key-result-large,
  .key-result-wide,
  .supplement-wide {
    grid-row: auto;
    grid-column: auto;
  }

  .key-result-card img,
  .supplement-wide img {
    max-height: 420px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px 18px;
  }
}