:root {
  color-scheme: light;
  --ink: #172136;
  --muted: #5d6678;
  --line: #dfe4ec;
  --surface: #ffffff;
  --soft: #f3f7fb;
  --brand: #185adb;
  --brand-dark: #103d96;
  --accent: #f0b429;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
}

a { color: var(--brand); }

.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 850;
  font-size: 1.2rem;
  letter-spacing: -.03em;
}

.brand span { color: var(--brand); }

.header-nav { display: flex; gap: 22px; }
.header-nav a { color: var(--muted); text-decoration: none; font-weight: 650; }

.hero {
  padding: 88px 0 70px;
  background:
    radial-gradient(circle at 90% 12%, rgba(24, 90, 219, .16), transparent 28%),
    linear-gradient(180deg, #fff, var(--soft));
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}

h1, h2 { line-height: 1.12; letter-spacing: -.04em; }
h1 { max-width: 760px; margin: 0; font-size: clamp(2.7rem, 7vw, 5.3rem); }
h2 { margin: 0 0 14px; font-size: clamp(1.8rem, 4vw, 2.8rem); }

.hero-copy { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 1.16rem; }

.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.pill { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-weight: 700; font-size: .9rem; }

.section { padding: 72px 0; }
.section-intro { max-width: 700px; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 32px; }
.card { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 14px 36px rgba(23, 33, 54, .07); }
.card-number { color: var(--brand); font-size: .82rem; font-weight: 850; letter-spacing: .12em; }
.card h3 { margin: 18px 0 8px; font-size: 1.25rem; }
.card p { margin: 0; color: var(--muted); }

.standards { background: var(--ink); color: #fff; }
.standards .section-intro { color: #cfd6e4; }
.standards-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.check-list { display: grid; gap: 15px; margin: 0; padding: 0; list-style: none; }
.check-list li { padding: 17px 18px 17px 48px; position: relative; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; }
.check-list li::before { content: "✓"; position: absolute; left: 18px; color: var(--accent); font-weight: 900; }

.content-page { padding: 64px 0 88px; }
.content-page article { max-width: 820px; }
.content-page h1 { font-size: clamp(2.3rem, 6vw, 4rem); }
.content-page h2 { margin-top: 38px; font-size: 1.55rem; }
.content-page p, .content-page li { color: var(--muted); }
.updated { color: var(--muted); font-size: .9rem; }

.site-footer { padding: 42px 0; border-top: 1px solid var(--line); background: #0d1424; color: #d7deea; }
.footer-inner { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 12px 22px; margin: 18px 0; }
.site-footer a { color: #fff; text-decoration: none; }
.footer-note, .copyright { color: #9fa9bd; font-size: .86rem; }

@media (max-width: 760px) {
  .header-nav { display: none; }
  .hero { padding: 68px 0 56px; }
  .cards, .standards-grid { grid-template-columns: 1fr; }
  .standards-grid { gap: 28px; }
}