:root {
  --bg: #f4f7fb;
  --bg-alt: #edf3f8;
  --surface: #ffffff;
  --surface-2: #f7fafc;
  --text: #17212b;
  --muted: #586376;
  --line: #d8e2ee;
  --accent: #0f766e;
  --accent-2: #2563eb;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --shadow: 0 18px 50px rgba(16, 24, 40, 0.08);
  --radius: 20px;
  --radius-sm: 14px;
  --container: 1140px;
}

* {
  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;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

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

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(244, 247, 251, 0.8);
  border-bottom: 1px solid rgba(216, 226, 238, 0.85);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 74px 0 44px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.12), transparent 32%),
    radial-gradient(circle at 85% 10%, rgba(15, 118, 110, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(244, 247, 251, 0.98));
  pointer-events: none;
}

.hero-shell {
  position: relative;
}

.venue-badge,
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin: 0;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(15, 118, 110, 0.08);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.hero h1 {
  margin: 18px 0 0;
  max-width: 960px;
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.tagline {
  margin: 20px 0 0;
  max-width: 880px;
  font-size: 1.16rem;
  color: var(--muted);
}

.authors,
.affiliations {
  margin: 16px 0 0;
}

.authors {
  font-size: 1.02rem;
  font-weight: 700;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--muted);
  font-size: 0.98rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
.copy-button {
  appearance: none;
  border: 1px solid rgba(23, 33, 43, 0.12);
  border-radius: 999px;
  padding: 11px 17px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.button:hover,
.copy-button:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(16, 24, 40, 0.08);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), #128277);
  color: #fff;
  border-color: transparent;
}

.hero-panels {
  margin-top: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.8fr);
  gap: 20px;
}

.panel,
.info-card,
.table-card,
.figure-card,
.copy-card,
.resource-card,
.callout-box {
  background: var(--surface);
  border: 1px solid rgba(216, 226, 238, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel {
  padding: 28px;
}

.panel-abstract p:last-child {
  margin-bottom: 0;
}

.panel-stats {
  display: grid;
  gap: 14px;
}

.stat-item {
  padding: 18px;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.06), rgba(37, 99, 235, 0.04));
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.stat-label {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 600;
}

.section {
  padding: 70px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(237, 243, 248, 0.7), rgba(244, 247, 251, 0.82));
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading.compact {
  max-width: 840px;
}

.section-heading h2 {
  margin: 6px 0 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.section-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}

.card-grid {
  display: grid;
  gap: 20px;
}

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

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

.info-card,
.copy-card,
.resource-card {
  padding: 24px;
}

.info-card h3,
.copy-card h3,
.resource-card h3,
.table-card h3 {
  margin: 0 0 8px;
  font-size: 1.18rem;
}

.info-card p,
.copy-card p,
.resource-card p {
  margin: 0;
  color: var(--muted);
}

.info-card.shaded {
  background: linear-gradient(180deg, #ffffff, #f7fbff);
}

.figure-card {
  margin: 0;
  padding: 16px;
}

.figure-card img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
}

.figure-card figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.96rem;
}

.wide-figure img {
  padding: 8px;
}

.results-grid,
.resource-grid,
.split-copy {
  display: grid;
  gap: 20px;
}

.results-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.resource-grid {
  grid-template-columns: 0.9fr 1.1fr;
}

.split-copy {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.table-card {
  padding: 24px;
}

.card-title-row {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 14px;
  margin-bottom: 8px;
}

.table-note,
.small-note,
.contact-line {
  color: var(--muted);
  font-size: 0.95rem;
}

.table-note,
.small-note {
  margin: 0 0 14px;
}

.contact-line {
  margin-top: 16px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.table-scroll table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  background: #fff;
}

.table-scroll th,
.table-scroll td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #e8eef5;
  font-size: 0.95rem;
}

.table-scroll th {
  background: #f7fbfe;
  color: var(--muted);
  font-weight: 800;
}

.table-scroll tbody tr:last-child td {
  border-bottom: none;
}

.highlight-row td {
  background: rgba(15, 118, 110, 0.06);
  font-weight: 700;
}

.copy-card {
  min-height: 100%;
}

.callout-box {
  margin-top: 22px;
  padding: 20px 22px;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(37, 99, 235, 0.06));
  border-color: rgba(15, 118, 110, 0.14);
}

.bibtex-card pre {
  margin: 0;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #0f172a;
  color: #e2ecff;
  overflow-x: auto;
  font-size: 0.92rem;
  line-height: 1.55;
}

.site-footer {
  padding: 28px 0 44px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.footer-inner p {
  margin: 0;
}

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

@media (max-width: 980px) {
  .hero-panels,
  .results-grid,
  .resource-grid,
  .split-copy,
  .three-up,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }
}

@media (max-width: 720px) {
  .topbar-inner {
    min-height: 64px;
  }

  .nav-links {
    gap: 12px;
  }

  .section {
    padding: 56px 0;
  }

  .panel,
  .info-card,
  .table-card,
  .copy-card,
  .resource-card {
    padding: 20px;
  }

  .button-row {
    gap: 10px;
  }

  .button,
  .copy-button {
    width: fit-content;
  }

  .card-title-row {
    flex-direction: column;
    align-items: flex-start;
  }
}