:root {
  --brand-700: #0b3c7f;
  --brand-600: #1b4f9a;
  --brand-500: #2767c5;
  --brand-100: #e8f0ff;
  --accent-500: #ffd76b;
  --text-900: #0b1b2b;
  --text-700: #24394f;
  --text-500: #4b637a;
  --border-200: #dde6ef;
  --bg-50: #f7f9fc;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text-900);
  background: var(--bg-50);
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.skip-link { position: absolute; left: -9999px; top: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--brand-700); color: #fff; padding: .5rem .75rem; border-radius: .5rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: #fff; border-bottom: 1px solid var(--border-200);
}
.header-inner { display: flex; align-items: center; gap: 1rem; padding: .75rem 0; }
.brand { display: flex; align-items: center; gap: .75rem; }
.brand-badge {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border-radius: 50%; background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
  color: #fff; font-weight: 700;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-sub { font-size: .825rem; color: var(--text-500); }

.site-nav ul { list-style: none; display: flex; gap: 1rem; padding: 0; margin: 0; }
.site-nav a { text-decoration: none; color: var(--text-700); font-weight: 600; padding: .5rem .75rem; border-radius: .5rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--brand-700); background: var(--brand-100); }

.nav-toggle { display: none; border: none; background: transparent; font-size: 1.5rem; }

/* Hero */
.hero { background: linear-gradient(180deg, #fff, var(--brand-100)); border-bottom: 1px solid var(--border-200); }
.hero-inner { padding: 3rem 0; text-align: center; }
.hero h1 { font-size: clamp(1.75rem, 2.8vw, 2.5rem); margin: 0 0 .75rem; color: var(--brand-700); }
.hero p { margin: 0 auto 1.25rem; max-width: 60ch; color: var(--text-700); }
.hero-cta { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

/* Cards */
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }

.highlights { padding: 2rem 0; }
.card { background: #fff; border: 1px solid var(--border-200); border-radius: .75rem; padding: 1rem; }
.card-icon { font-size: 1.75rem; }

/* Info */
.info { padding: 1rem 0 2rem; }
.info-grid { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 800px) { .info-grid { grid-template-columns: 1fr; } }
.list { margin: .5rem 0 1rem; padding-left: 1.25rem; }
.small { font-size: .9rem; color: var(--text-500); }

/* News */
.news { padding: 2rem 0; border-top: 1px solid var(--border-200); }
.news-item { background: #fff; border: 1px solid var(--border-200); border-radius: .75rem; padding: 1rem; }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--border-200); }
.footer-inner { padding: 1rem 0; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.footer-links { display: flex; gap: .75rem; }
.muted { color: var(--text-500); cursor: not-allowed; }

/* Buttons & links */
.btn { display: inline-block; text-decoration: none; font-weight: 700; border-radius: .6rem; padding: .6rem .9rem; }
.btn-primary { background: var(--brand-700); color: #fff; }
.btn-primary:hover { background: var(--brand-600); }
.btn-secondary { background: var(--accent-500); color: #2b2b2b; }
.link { color: var(--brand-600); font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }

/* Responsive nav */
@media (max-width: 860px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; background: #fff; border: 1px solid var(--border-200); border-radius: .75rem; padding: .5rem; position: absolute; right: 1rem; top: 60px; }
}