:root {
  --ink: #0b1b2b;
  --ink-muted: #415365;
  --accent: #0f766e;
  --accent-bright: #12b4a5;
  --gold: #f6b04c;
  --paper: #f7f3ee;
  --paper-alt: #eef2f6;
  --card: #ffffff;
  --border: #d9e1ea;
  --shadow-sm: 0 6px 12px -6px rgba(11, 27, 43, 0.25);
  --shadow-md: 0 16px 30px -18px rgba(11, 27, 43, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --font-display: "Space Grotesk", "Trebuchet MS", sans-serif;
  --font-body: "Source Sans 3", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(circle at 10% 10%, rgba(18, 180, 165, 0.14), transparent 45%),
    radial-gradient(circle at 85% 5%, rgba(246, 176, 76, 0.2), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0) 45%);
  margin: 0;
  line-height: 1.7;
}

section {
  position: relative;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
}

p {
  color: var(--ink-muted);
}

a {
  color: inherit;
}

.track-hero {
  background: linear-gradient(135deg, #0b1b2b 0%, #0f3c4a 55%, #147e7b 100%);
  color: #f3f6fb;
  overflow: hidden;
}

.track-hero .hero-body {
  padding: 5rem 1.5rem 4rem;
}

.track-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(246, 176, 76, 0.28), transparent 70%);
  right: -140px;
  top: -140px;
  z-index: 0;
}

.hero-badges {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.badge {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #f7fbff;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
}

.hero-title {
  font-size: clamp(2.2rem, 3vw, 3.4rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-actions .button.is-dark {
  background: var(--gold);
  border: none;
  color: #1a1a1a;
  font-weight: 700;
}

.hero-actions .button.is-light {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
}

.hero-card {
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.hero-card img {
  width: 100%;
  display: block;
  height: auto;
}

.hero-card-content {
  padding: 1.25rem 1.5rem 1.6rem;
}

.hero-card-content h3 {
  margin-bottom: 0.4rem;
}

.section {
  padding: 3rem 1.5rem;
}

.section-title {
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--ink-muted);
  max-width: 680px;
}

.section-header {
  margin-bottom: 2rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--ink-muted);
}

.info-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.equal-height-columns {
  align-items: stretch;
}

.equal-height-columns > .column {
  display: flex;
}

.equal-height-columns .info-card {
  flex: 1;
}

.info-card-spacing {
  margin-top: 1.25rem;
}

.stacked-cards {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-card h3 {
  margin-bottom: 0.75rem;
}

.info-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--ink-muted);
}

.info-card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.info-card a:hover {
  text-decoration: underline;
}

.awards-group {
  margin-top: 1rem;
}

.awards-group h4 {
  margin-bottom: 0.5rem;
  font-size: 1rem;
  color: var(--ink);
}

.awards-list {
  margin: 0;
  padding-left: 1rem;
  color: var(--ink-muted);
}

.awards-list li {
  margin-bottom: 0.75rem;
}

.awards-list span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.92rem;
  color: var(--ink-muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.area-card {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 1.4rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  min-height: 150px;
}

.area-card h3 {
  margin-bottom: 0.6rem;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.publication-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.publication-item h3 {
  margin-bottom: 0.4rem;
}

.image-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
}

.info-banner {
  background: linear-gradient(120deg, rgba(15, 118, 110, 0.12), rgba(246, 176, 76, 0.16));
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid rgba(15, 118, 110, 0.25);
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.sponsor-card {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 0.75rem;
  align-content: center;
  text-align: center;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sponsor-card img {
  max-height: 56px;
  width: auto;
  margin: 0 auto;
  object-fit: contain;
}

.sponsor-card span {
  font-size: 0.9rem;
  color: var(--ink-muted);
  font-weight: 600;
}

.sponsor-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.footer {
  background: var(--paper-alt);
  padding: 2rem 1.5rem;
}

.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  height: 46px;
  width: 46px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 10;
}

.scroll-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

@media screen and (max-width: 1024px) {
  .track-hero .hero-body {
    padding: 4rem 1.5rem 3rem;
  }
}

@media screen and (max-width: 768px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .track-hero::after {
    display: none;
  }


}