:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-2: #f0f4fa;
  --text: #1d2433;
  --muted: #5b6475;
  --line: #d9e0ea;
  --accent: #0b5cab;
  --accent-2: #15406c;
  --shadow: 0 10px 25px rgba(14, 31, 53, 0.08);
  --radius: 16px;
  --max: 1100px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fbfcfe 0%, var(--bg) 100%);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.container { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(217,224,234,.85);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0;
}
.brand { font-weight: 700; color: var(--accent-2); letter-spacing: .02em; }
.nav-toggle { display: none; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .5rem .7rem; }
.main-nav ul {
  list-style: none; display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0;
}
.main-nav a {
  display: block; padding: .5rem .8rem; border-radius: 999px; color: var(--muted);
}
.main-nav a[aria-current="page"], .main-nav a:hover {
  background: var(--surface-2); color: var(--accent-2); text-decoration: none;
}
main { padding: 2.2rem 0 4rem; }
.hero {
  background: radial-gradient(circle at top right, rgba(11,92,171,.12), transparent 28%), var(--surface);
  border: 1px solid var(--line); border-radius: 24px; padding: 2rem; box-shadow: var(--shadow);
}
.hero-grid {
  display: grid; grid-template-columns: 1.45fr .95fr; gap: 1.5rem; align-items: start;
}
.eyebrow { text-transform: uppercase; font-size: .78rem; letter-spacing: .11em; color: var(--accent); font-weight: 700; }
h1, h2, h3 { line-height: 1.22; color: #122033; }
h1 { font-size: clamp(2rem, 3vw, 3.1rem); margin: .35rem 0 .75rem; }
h2 { font-size: 1.6rem; margin: 2rem 0 .8rem; }
h3 { font-size: 1.15rem; margin: 1.2rem 0 .45rem; }
p { margin: .6rem 0; }
.lead { font-size: 1.08rem; color: #324055; }
.muted { color: var(--muted); }
.badge-row, .action-row { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1rem; }
.badge { background: #eef4fb; color: var(--accent-2); border: 1px solid #d3e2f3; padding: .45rem .75rem; border-radius: 999px; font-size: .95rem; }
.button {
  display: inline-block; background: var(--accent); color: #fff; padding: .78rem 1rem;
  border-radius: 12px; font-weight: 600; box-shadow: var(--shadow);
}
.button.secondary { background: var(--surface); color: var(--accent-2); border: 1px solid var(--line); box-shadow: none; }
.button:hover { text-decoration: none; filter: brightness(.98); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.4rem; }
.card, .panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.15rem 1rem; box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; }
.panel + .panel { margin-top: 1rem; }
.two-col { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1.2rem; }
.section { margin-top: 1.6rem; }
.list-clean { margin: .6rem 0 0; padding-left: 1.1rem; }
.list-clean li { margin: .3rem 0; }
.kv { display: grid; grid-template-columns: 120px 1fr; gap: .5rem .9rem; }
.kv dt { color: var(--muted); font-weight: 600; }
.kv dd { margin: 0; }
.pub-list { padding-left: 1.2rem; }
.pub-list li { margin: .55rem 0; }
.note {
  border-left: 4px solid #b7cce7; padding: .75rem 1rem; background: #f5f9ff;
  border-radius: 0 12px 12px 0; color: #304158;
}
.callout {
  background: linear-gradient(180deg, #0e3560, #15406c);
  color: #fff; border-radius: 22px; padding: 1.5rem; margin-top: 1.5rem;
}
.callout a { color: #fff; text-decoration: underline; }
.site-footer {
  border-top: 1px solid var(--line); background: rgba(255,255,255,.8); padding: 1.4rem 0 2rem;
}
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--muted); font-size: .95rem; }
.small { font-size: .92rem; }
.hr { height: 1px; background: var(--line); margin: 1.5rem 0; }
@media (max-width: 900px) {
  .hero-grid, .two-col, .card-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .main-nav { display: none; width: 100%; }
  .main-nav.open { display: block; }
  .header-inner { flex-wrap: wrap; }
  .main-nav ul { flex-direction: column; align-items: stretch; }
  .main-nav a { border-radius: 12px; }
  main { padding-top: 1.2rem; }
  .hero { padding: 1.25rem; }
}