:root {
  --bg: #f6f7fb;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-2: rgba(255, 255, 255, 0.78);
  --border: rgba(15, 23, 42, 0.12);
  --text: rgba(15, 23, 42, 0.96);
  --muted: rgba(51, 65, 85, 0.88);
  --muted-2: rgba(71, 85, 105, 0.78);

  --accent: #4f46e5;
  --accent-2: #0ea5e9;
  --shadow-lg: 0 28px 90px rgba(15, 23, 42, 0.12);
  --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.10);
}

html,
body {
  background:
    radial-gradient(1100px 700px at 18% 12%, rgba(79, 70, 229, 0.10), transparent 60%),
    radial-gradient(1000px 600px at 82% 18%, rgba(14, 165, 233, 0.10), transparent 55%),
    radial-gradient(900px 600px at 55% 96%, rgba(15, 23, 42, 0.05), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Google Sans", "Noto Sans", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
  overflow-x: hidden;
}

a {
  color: rgba(79, 70, 229, 0.96);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-container {
  max-width: 1120px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 9999;
  background: #ffffff;
  color: rgba(15, 23, 42, 0.96);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  box-shadow: var(--shadow-md);
  transform: translateY(-160%);
  transition: transform 0.16s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  padding-top: 12px;
  padding-bottom: 6px;
}

.top-nav-inner {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

.nav-brand {
  font-weight: 700;
  letter-spacing: 0.01em;
  color: rgba(15, 23, 42, 0.92);
}

.pill-hint {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.10);
  color: rgba(51, 65, 85, 0.92);
}

.nav-pill {
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: rgba(51, 65, 85, 0.92);
}

.nav-pill:hover {
  text-decoration: none;
  border-color: var(--border);
  background: rgba(79, 70, 229, 0.06);
}

.hero-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.74));
  padding: 22px 22px 18px 22px;
  box-shadow: var(--shadow-lg);
}

.venue-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 11px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(79, 70, 229, 0.95), rgba(14, 165, 233, 0.95));
  color: #ffffff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: 0 16px 36px rgba(79, 70, 229, 0.22);
  margin-bottom: 10px;
}

.kicker {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin-bottom: 8px;
}

.display-title {
  font-size: clamp(28px, 3.8vw, 42px);
  line-height: 1.15;
  margin: 0;
}

.hero-subtitle {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
}

.hero-links {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-authors {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.hero-authors .authors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.hero-authors .affiliations {
  margin-top: 6px;
  color: var(--muted-2);
  font-size: 13px;
}

.section-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.74);
  padding: 18px 18px 16px 18px;
  margin-top: 18px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.section-title {
  font-size: 20px;
  margin-bottom: 10px;
}

.section-text {
  color: var(--muted);
  margin-bottom: 12px;
}

.figure-card {
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  padding: 12px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06);
}

.figure-title {
  font-weight: 700;
  color: rgba(15, 23, 42, 0.92);
  font-size: 14px;
  margin-bottom: 8px;
}

.figure-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted-2);
}

.callouts {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 10px;
}

.callout {
  grid-column: span 12;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.02);
  padding: 12px;
}

@media (min-width: 992px) {
  .callout {
    grid-column: span 4;
  }
}

.callout .k {
  font-weight: 700;
  font-size: 13px;
  color: rgba(15, 23, 42, 0.92);
}

.callout .v {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.bibtex-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 10px;
}

.codebox {
  border: 1px solid rgba(15, 23, 42, 0.14);
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.03);
  padding: 12px;
  overflow: auto;
}

pre {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  color: rgba(15, 23, 42, 0.92);
}

video {
  background: #000000;
}

.footer-note {
  color: var(--muted-2);
  font-size: 13px;
}