:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef3fb;
  --text: #172033;
  --muted: #5e6a7f;
  --line: #dce3ef;
  --accent: #3867ff;
  --accent-soft: #e8eeff;
  --accent-strong: #1d47d6;
  --shadow: 0 22px 70px rgba(28, 45, 92, 0.12);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --maxw: 1120px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1020;
  --surface: #121a2d;
  --surface-soft: #172238;
  --text: #edf2ff;
  --muted: #a5afc3;
  --line: #2a3550;
  --accent: #86a3ff;
  --accent-soft: #1a2544;
  --accent-strong: #b3c4ff;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 0%, rgba(56, 103, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 82% 6%, rgba(41, 190, 177, 0.12), transparent 28rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.shell { width: min(var(--maxw), calc(100% - 40px)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #29beb1);
  color: white;
  box-shadow: 0 12px 30px rgba(56, 103, 255, 0.28);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}
.nav-links a,
.theme-toggle,
.nav-toggle {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 9px 13px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.nav-links a:hover,
.theme-toggle:hover { background: var(--surface-soft); color: var(--text); }
.nav-toggle { display: none; }

.hero {
  text-align: center;
  padding: 82px 0 36px;
}
.venue {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin: 0 0 20px;
}
h1 {
  max-width: 1040px;
  margin: 0 auto;
  font-size: clamp(2.45rem, 6vw, 5.15rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}
.subtitle {
  max-width: 760px;
  margin: 26px auto 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
}
.authors {
  margin: 28px auto 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  font-weight: 650;
}
.authors sup,
.affiliations sup { color: var(--accent-strong); font-weight: 800; }
.affiliations {
  margin: 8px auto 0;
  color: var(--muted);
  font-size: 0.96rem;
}
.button-row {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(24, 32, 51, 0.06);
  font-weight: 750;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }

.media-section { padding: 14px 0 44px; }
.section { padding: 62px 0; }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 22px;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(1.85rem, 4vw, 3rem);
  letter-spacing: -0.045em;
  line-height: 1.05;
}
.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.card,
.figure-card,
.table-card,
.mini-card {
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.figure-card {
  margin: 0;
  overflow: hidden;
  padding: 18px;
}
.figure-card img {
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid var(--line);
  cursor: zoom-in;
}
.hero-figure { padding: 22px; }
.figure-card figcaption {
  color: var(--muted);
  font-size: 0.96rem;
  margin-top: 14px;
}
.abstract-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(250px, 0.75fr);
  gap: 22px;
}
.abstract-text { padding: 28px; }
.abstract-text p:first-child { margin-top: 0; }
.abstract-text p:last-child { margin-bottom: 0; }
.takeaway-stack { display: grid; gap: 14px; }
.mini-card { padding: 22px; }
.stat {
  display: block;
  color: var(--accent-strong);
  font-size: 1.35rem;
  font-weight: 850;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.mini-card p { margin: 0; color: var(--muted); }

.table-card { padding: 16px; overflow: hidden; }
.table-scroll { overflow-x: auto; border-radius: var(--radius-md); }
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: var(--surface);
}
caption {
  caption-side: bottom;
  text-align: left;
  padding: 12px 4px 0;
  color: var(--muted);
  font-size: 0.92rem;
}
th, td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
}
thead th {
  background: var(--surface-soft);
  color: var(--text);
  font-weight: 850;
}
tbody th {
  text-align: left;
  font-weight: 800;
}
tbody tr:last-child th,
tbody tr:last-child td { border-bottom: none; }
.ours-col { background: color-mix(in srgb, var(--accent-soft) 72%, transparent); }
.ours-row th,
.ours-row td { background: color-mix(in srgb, var(--accent-soft) 70%, transparent); }
.results-table { min-width: 1080px; font-size: 0.93rem; }
.results-table th,
.results-table td { padding: 12px 10px; }
.subheading { margin-top: 56px; }
.figure-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }

.footer {
  padding: 34px 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.footer p { margin: 0; }
.footer a { color: var(--accent-strong); font-weight: 750; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  place-items: center;
  padding: 28px;
  background: rgba(5, 8, 16, 0.84);
  backdrop-filter: blur(10px);
}
.lightbox.is-open { display: grid; }
.lightbox img {
  max-width: min(96vw, 1500px);
  max-height: 88vh;
  object-fit: contain;
  background: white;
  border-radius: 14px;
  box-shadow: 0 30px 120px rgba(0, 0, 0, 0.45);
}
.lightbox-close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.14);
  color: white;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 860px) {
  .desktop-break { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 68px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a,
  .theme-toggle { text-align: left; }
  .hero { padding-top: 58px; }
  .abstract-grid { grid-template-columns: 1fr; }
  .section-heading { display: block; }
  .figure-card, .hero-figure, .abstract-text { padding: 14px; }
  .footer { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 24px, var(--maxw)); }
  h1 { font-size: clamp(2.15rem, 13vw, 3rem); }
  .button-row { gap: 8px; }
  .btn { min-width: 94px; }
  th, td { padding: 11px 12px; }
}