/* AMPLIFAI challenge site — layout & theme */
:root {
  --amplifai-ink: #0b1220;
  --amplifai-muted: #475569;
  --amplifai-accent: #0891b2;
  --amplifai-accent-deep: #0e7490;
  --amplifai-surface: #f8fafc;
  --amplifai-border: #e2e8f0;
  --amplifai-hero-gradient: linear-gradient(135deg, #0b1220 0%, #134e4a 48%, #0e7490 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--amplifai-ink);
  background: #fff;
  padding-top: 4.5rem;
}

h1,
h2,
h3,
.display-font {
  font-family: "Outfit", system-ui, sans-serif;
  letter-spacing: -0.02em;
}

.text-muted-amplifai {
  color: var(--amplifai-muted) !important;
}

.navbar-brand {
  font-family: "Outfit", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--amplifai-ink) !important;
}

.navbar-brand-logo {
  height: 2.15rem;
  width: auto;
  display: block;
}

@media (min-width: 992px) {
  .navbar-brand-logo {
    height: 2.4rem;
  }
}

.hero-brand-logo {
  max-width: min(100%, 24rem);
  height: auto;
  display: block;
}

.nav-link {
  font-weight: 500;
  color: var(--amplifai-ink) !important;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--amplifai-accent-deep) !important;
}

.btn-amplifai {
  background: var(--amplifai-accent);
  border: none;
  color: #fff !important;
  font-weight: 600;
}

.btn-amplifai:hover {
  background: var(--amplifai-accent-deep);
  color: #fff !important;
}

.hero {
  background: var(--amplifai-hero-gradient);
  color: #e2e8f0;
  padding: 3.5rem 0 4rem;
  margin-bottom: 0;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4vw, 2.85rem);
}

.hero .lead {
  color: #cbd5e1;
  max-width: 40rem;
}

.section-title {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--amplifai-accent);
  display: inline-block;
}

.section-block {
  padding: 3.5rem 1.5rem;
}

@media (min-width: 768px) {
  .section-block {
    padding: 3.5rem 2rem;
  }
}

@media (min-width: 1200px) {
  .section-block {
    padding: 4rem 2.5rem;
  }
}

.section-block:nth-child(even) {
  background: var(--amplifai-surface);
}

.card-amplifai {
  border: 1px solid var(--amplifai-border);
  border-radius: 0.5rem;
  background: #fff;
}

footer.site-footer {
  background: var(--amplifai-ink);
  color: #94a3b8;
  padding: 2rem 0;
  margin-top: 2rem;
  font-size: 0.9rem;
  text-align: center !important;
}

footer.site-footer .container {
  text-align: center !important;
}

footer.site-footer p {
  text-align: center !important;
}

footer.site-footer a {
  color: #cbd5e1;
}

footer.site-footer a:hover {
  color: #fff;
}

.anchor-offset {
  scroll-margin-top: 5rem;
}

.table-timeline th {
  font-weight: 600;
  width: 11rem;
}

.rules-prose {
  max-width: 46rem;
}

.rules-prose h2 {
  font-size: 1.25rem;
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--amplifai-border);
}

.rules-prose h2:first-of-type {
  margin-top: 0.5rem;
}

.rules-prose p,
.rules-prose li {
  color: var(--amplifai-muted);
  line-height: 1.6;
}

.rules-prose ul {
  margin-bottom: 1rem;
}

.background-categories-table {
  font-size: 0.9rem;
}

.background-categories-table th {
  white-space: nowrap;
}

.lirads-figure {
  max-width: 56rem;
}

.lirads-figure img {
  width: 100%;
  height: auto;
}

.rules-prose .rules-meta {
  font-size: 0.9rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--amplifai-border);
  color: var(--amplifai-muted);
}

.organizers-page-title {
  margin-bottom: 1rem;
}

.organizers-intro {
  margin-bottom: 0;
  max-width: 42rem;
}

.organizers-miccai-banner {
  margin-top: 2rem;
}

.organizers-committee-heading {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--amplifai-ink);
  margin: 3.5rem 0 2.25rem;
  padding-bottom: 1rem;
  letter-spacing: -0.03em;
  border-bottom: 3px solid var(--amplifai-accent);
}

.organizers-group + .organizers-group {
  margin-top: 5rem;
  padding-top: 0.25rem;
}

.organizers-section-heading {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--amplifai-accent-deep);
  margin: 0;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--amplifai-border);
}

.organizers-institutes-heading {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--amplifai-ink);
  margin: 4rem 0 1.75rem;
  padding-bottom: 0.65rem;
  border-bottom: 3px solid var(--amplifai-accent);
}

.organizers-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem 1.5rem;
  margin-top: 1.75rem;
}

@media (min-width: 768px) {
  .organizers-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .organizers-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.organizer-card {
  text-align: center;
}

.organizer-card figure {
  margin: 0;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--amplifai-border);
  background: var(--amplifai-surface);
  aspect-ratio: 1;
  padding: 0.375rem;
}

.organizer-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 0.35rem;
}

.organizer-card .organizer-name {
  font-family: "Outfit", system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0.65rem 0 0;
  color: var(--amplifai-ink);
  line-height: 1.25;
}

.organizer-card .organizer-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--amplifai-ink);
  margin: 0.35rem 0 0;
  line-height: 1.35;
}

.organizer-card .organizer-affiliation {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--amplifai-muted);
  margin: 0.35rem 0 0;
  line-height: 1.35;
}

.organizing-institutes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
  align-items: stretch;
}

.organizing-institute-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1rem;
  border: 1px solid var(--amplifai-border);
  border-radius: 0.5rem;
  background: #fff;
  text-align: center;
}

.organizing-institute-img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
  max-height: 4.25rem;
  width: auto;
  object-fit: contain;
}

.organizing-institute-img--svg {
  max-height: 3.5rem;
}

@media print {
  body {
    padding-top: 0 !important;
  }

  /* Navbar is fixed on screen; in print, static flow so it appears once (top of p.1), not on every sheet */
  nav.navbar,
  .sticky-header {
    position: static !important;
    inset: auto !important;
    display: block !important;
    width: 100% !important;
    box-shadow: none !important;
    page-break-after: avoid;
    break-after: avoid;
  }

  .navbar-collapse,
  .navbar-collapse.collapse {
    display: block !important;
    visibility: visible !important;
    height: auto !important;
    overflow: visible !important;
  }

  .navbar-toggler {
    display: none !important;
  }
}