:root {
  color-scheme: light dark;
  --bg: #f7fafc;
  --panel: #ffffff;
  --text: #172033;
  --muted: #5b677a;
  --line: #d7e2ec;
  --brand: #0f4f68;
  --brand-2: #2f8eb1;
  --dark: #0f1b2e;
  --green: #0d8b61;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Lato, Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.65; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header { background: rgba(255,255,255,.92); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(12px); }
.nav { max-width: 1120px; margin: 0 auto; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 900; font-size: 20px; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 18px; font-size: 14px; font-weight: 700; }
.nav-cta { background: var(--dark); color: #fff; padding: 10px 14px; border-radius: 8px; }
.nav-cta:hover { text-decoration: none; background: #17314a; }
.hero { border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #fff 0%, #eef6fa 100%); }
.hero-inner { max-width: 1120px; margin: 0 auto; padding: 72px 20px 52px; }
.kicker { display: inline-flex; border: 1px solid #b9d2df; color: var(--brand); background: #f4fbfe; border-radius: 999px; padding: 6px 11px; font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
h1 { max-width: 880px; margin: 20px 0 16px; font-size: clamp(36px, 6vw, 64px); line-height: 1.04; letter-spacing: 0; }
.lede { max-width: 760px; font-size: 19px; color: var(--muted); margin: 0; }
.meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; color: #69758a; font-size: 14px; }
.layout { max-width: 1120px; margin: 0 auto; padding: 42px 20px 70px; display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 44px; align-items: start; }
.article { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: clamp(24px, 5vw, 44px); box-shadow: 0 14px 34px rgba(15, 27, 46, .06); }
.article h2 { margin-top: 36px; margin-bottom: 12px; font-size: 28px; line-height: 1.2; }
.article h2:first-child { margin-top: 0; }
.article h3 { margin-top: 24px; margin-bottom: 8px; font-size: 20px; }
.article p { margin: 0 0 16px; }
.article ul { padding-left: 22px; margin: 0 0 20px; }
.article li { margin: 8px 0; }
.callout { border-left: 4px solid var(--brand-2); background: #eef8fb; padding: 16px 18px; border-radius: 8px; margin: 24px 0; }
.cta-band { margin-top: 34px; padding: 22px; border: 1px solid #b9d2df; border-radius: 12px; background: #f4fbfe; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.cta-band strong { display: block; font-size: 18px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--dark); color: #fff; padding: 11px 16px; border-radius: 8px; font-weight: 900; }
.btn:hover { text-decoration: none; background: #17314a; }
.side { position: sticky; top: 90px; display: grid; gap: 16px; }
.side-box { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.side-box h2 { font-size: 14px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: .08em; color: #69758a; }
.side-box a { display: block; padding: 8px 0; font-weight: 800; }
.related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 20px; }
.related-card { display: block; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px; color: var(--text); }
.related-card span { display: block; color: var(--brand); font-weight: 900; margin-bottom: 6px; }
.site-footer { border-top: 1px solid var(--line); background: #eef3f8; }
.footer-inner { max-width: 1120px; margin: 0 auto; padding: 28px 20px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; color: #667286; font-size: 14px; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 860px) {
  .nav { align-items: flex-start; }
  .nav-links { flex-wrap: wrap; justify-content: flex-end; gap: 10px 14px; }
  .hero-inner { padding-top: 46px; }
  .layout { grid-template-columns: 1fr; padding-top: 28px; }
  .side { position: static; }
  .related-grid { grid-template-columns: 1fr; }
}
@media (prefers-color-scheme: dark) {
  body { background: #0b1120; color: #e8eef7; }
  .site-header { background: rgba(11,17,32,.92); border-color: #26344a; }
  .brand, h1, .article h2, .article h3, .related-card { color: #f8fbff; }
  .nav-cta, .btn { background: #5bb8d8; color: #07111d; }
  .hero { background: linear-gradient(180deg, #101a2e 0%, #0b1120 100%); border-color: #26344a; }
  .article, .side-box, .related-card { background: #111b2f; border-color: #26344a; }
  .lede, .meta, .footer-inner { color: #a9b6c8; }
  .callout, .cta-band { background: #11243a; border-color: #335a72; }
  .site-footer { background: #0f172a; border-color: #26344a; }
  a { color: #7ccbe6; }
}