:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #eef3fa;
  --ink: #111827;
  --ink-soft: #4b5563;
  --line: #d9e1ef;
  --brand: #0f4c81;
  --brand-2: #2b6cb0;
  --success: #0f766e;
  --warning: #92400e;
  --danger: #991b1b;
  --radius: 14px;
  --shadow: 0 8px 22px rgba(17, 24, 39, 0.08);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.75rem;
  --space-7: 2.5rem;
  --maxw: 1160px;
}

:root[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #121b2b;
  --surface-2: #182438;
  --ink: #e5edf9;
  --ink-soft: #a9bad3;
  --line: #243149;
  --brand: #7cb3f0;
  --brand-2: #4b93eb;
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% -10%, rgba(43,108,176,0.12), transparent 38%), var(--bg);
  line-height: 1.6;
}

a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--brand-2) 65%, white);
  outline-offset: 2px;
}

.wrap { width: min(var(--maxw), 92vw); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(8px);
}

.nav {
  min-height: 64px;
  display: flex;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.94rem;
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.icon-btn,
.btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.48rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

.btn-primary {
  background: var(--brand-2);
  border-color: var(--brand-2);
  color: #fff;
}

.btn-ghost { background: transparent; }
.btn-link { border: none; background: transparent; color: var(--brand-2); padding: 0; }

main { padding-bottom: var(--space-7); }
.section { padding: var(--space-7) 0; }
.section-tight { padding: var(--space-6) 0; }

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-instant {
  padding: 2.6rem 0 2.2rem;
}

.hero-two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.hero-cta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.hero-cta {
  text-align: center;
  font-weight: 700;
  padding: 0.75rem 1rem;
}

.hero-right .card {
  border-color: color-mix(in srgb, var(--brand-2) 24%, var(--line));
}

#homeSearchForm {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-3);
}

#homeSearchForm label,
#homeSearchInput {
  grid-column: 1 / -1;
}

.topic-chips {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

.topic-chip {
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.38rem 0.7rem;
  font: inherit;
  cursor: pointer;
  font-size: 0.82rem;
}

.hero-photo img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

.hero-photo-inline {
  margin-bottom: var(--space-3);
}

.hero-photo-inline img {
  max-height: 220px;
  object-fit: cover;
}

.hero h1 {
  line-height: 1.1;
  margin: 0 0 var(--space-4);
  font-size: clamp(1.8rem, 4.8vw, 3.2rem);
  letter-spacing: -0.02em;
}

.hero p { color: var(--ink-soft); max-width: 70ch; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--brand-2);
  margin-bottom: var(--space-2);
}

.grid {
  display: grid;
  gap: var(--space-4);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-5);
}

.card h3, .card h4 { margin-top: 0; margin-bottom: var(--space-2); }
.card p { margin: 0; color: var(--ink-soft); }

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.22rem 0.48rem;
  border-radius: 999px;
}
.badge.success { color: var(--success); }
.badge.warning { color: var(--warning); }
.badge.danger { color: var(--danger); }

.kicker {
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
}

.disclaimer {
  background: color-mix(in srgb, var(--brand-2) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--brand-2) 28%, var(--line));
  border-radius: var(--radius);
  padding: var(--space-4);
  color: var(--ink);
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 12px;
  padding: 0.62rem 0.72rem;
  font: inherit;
}

.searchbar {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.searchbar .input { max-width: 560px; }

.timeline-list {
  display: grid;
  gap: var(--space-3);
}

.timeline-item {
  display: grid;
  grid-template-columns: 116px 1fr;
  gap: var(--space-4);
  align-items: start;
}

.timeline-date {
  font-weight: 700;
  color: var(--brand-2);
}

.accordion {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.accordion details + details { border-top: 1px solid var(--line); }
.accordion summary {
  cursor: pointer;
  padding: var(--space-4);
  font-weight: 700;
}
.accordion .content { padding: 0 var(--space-4) var(--space-4); color: var(--ink-soft); }

.pagination {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-6) 0;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(2, 10, 24, 0.5);
  z-index: 300;
}
.modal.open { display: grid; }
.modal-card {
  width: min(860px, 92vw);
  max-height: 82vh;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-5);
}

.search-result {
  border-top: 1px solid var(--line);
  padding: var(--space-3) 0;
}
.search-result:first-child { border-top: none; }

.toast-wrap {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: grid;
  gap: var(--space-2);
  z-index: 500;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand-2);
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: var(--space-3) var(--space-4);
  min-width: 220px;
}

.hide { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: var(--space-5);
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline-item { grid-template-columns: 1fr; }
  .hero-two-col { grid-template-columns: 1fr; }
  .hero-cta-grid { grid-template-columns: 1fr; }
}

@media (min-width: 981px) {
  .hero-instant {
    padding: 1.45rem 0 1.25rem;
  }

  .hero h1 {
    font-size: clamp(1.7rem, 3.3vw, 2.5rem);
    margin-bottom: 0.6rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 0.35rem;
  }

  .hero .disclaimer {
    padding: 0.6rem 0.8rem;
  }

  .hero-right .card {
    padding: 0.9rem;
  }

  #homeSearchForm {
    gap: 0.45rem;
    margin-top: 0.5rem;
  }

  .topic-chips {
    margin-top: 0.45rem;
    gap: 0.35rem;
  }

  .topic-chip {
    padding: 0.25rem 0.52rem;
    font-size: 0.76rem;
  }

  .hero-photo-inline {
    margin-bottom: 0.45rem;
  }

  .hero-photo-inline img {
    max-height: 150px;
  }
}

@media (max-width: 720px) {
  .nav { padding: 0.7rem 0; }
  .nav-links { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding-top: 3.2rem; }
}

.hero-layout {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  align-items: start;
}

.hero-subtitle {
  font-size: 1.08rem;
  margin-top: 0;
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

.hero-secondary-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  margin-top: var(--space-5);
}

.home-search-card {
  margin-top: var(--space-4);
}

.home-search-results {
  margin-top: var(--space-3);
  max-height: 240px;
  overflow: auto;
  padding-right: 0.2rem;
}

.home-search-results .search-result h3 {
  margin: 0.3rem 0;
}

.stack {
  display: grid;
  gap: var(--space-3);
}

.update-mini {
  border-top: 1px solid var(--line);
  padding-top: var(--space-3);
}

.update-mini:first-child {
  border-top: 0;
  padding-top: 0;
}

.update-mini h3 {
  margin: 0.3rem 0;
  font-size: 1.05rem;
}

.corrections-box {
  border: 2px solid color-mix(in srgb, var(--brand-2) 45%, var(--line));
}

.gallery-grid img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
  margin-bottom: var(--space-2);
}

@media (max-width: 980px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-secondary-grid {
    grid-template-columns: 1fr;
  }

  #homeSearchForm {
    grid-template-columns: 1fr;
  }
}