:root {
  --ink: #102033;
  --muted: #5f6f82;
  --line: #dce5ef;
  --soft: #f4f8fc;
  --blue: #1d5fd1;
  --blue-dark: #16499f;
  --green: #13825b;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); text-decoration: underline; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: linear-gradient(135deg, #2563eb, #7c3aed); border-radius: 10px; font-weight: 900; }
.nav-links { display: flex; gap: 20px; align-items: center; font-size: .95rem; }
.nav-links a { color: var(--muted); }
.nav-links .button { color: #fff; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 8px; background: var(--blue); color: #fff; padding: 11px 16px; font-weight: 700; line-height: 1.2; }
.button:hover { color: #fff; background: var(--blue-dark); text-decoration: none; }
.button.secondary { background: #e9f1ff; color: var(--blue-dark); }
.button.secondary:hover { background: #dce9ff; }
.hero { padding: 82px 0 72px; background: radial-gradient(circle at 90% 10%, #e9f1ff 0, transparent 42%), linear-gradient(180deg, #f8fbff, #fff); }
.eyebrow { margin: 0 0 12px; color: var(--blue); font-size: .82rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -.025em; }
h1 { max-width: 790px; margin: 0; font-size: clamp(2.3rem, 5vw, 4.3rem); }
h2 { margin: 0; font-size: clamp(1.65rem, 3vw, 2.35rem); }
h3 { margin: 0; font-size: 1.2rem; }
.lead { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 1.14rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.section { padding: 72px 0; }
.section.alt { border-block: 1px solid var(--line); background: var(--soft); }
.section-heading { max-width: 720px; margin-bottom: 28px; }
.section-heading p { margin: 12px 0 0; color: var(--muted); }
.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { display: flex; flex-direction: column; gap: 12px; height: 100%; padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: 0 8px 24px rgba(25, 61, 106, .05); }
.card p { margin: 0; color: var(--muted); }
.card .read { margin-top: auto; font-weight: 750; }
.tag { display: inline-flex; width: fit-content; padding: 4px 9px; border-radius: 999px; background: #edf4ff; color: var(--blue-dark); font-size: .78rem; font-weight: 750; }
.note { margin: 24px 0 0; padding: 16px 18px; border-left: 4px solid var(--green); background: #effaf5; color: #245443; }
.disclosure { margin-top: 26px; padding: 16px 18px; border: 1px solid #d9e4f3; border-radius: 10px; background: #f7faff; color: var(--muted); font-size: .9rem; }
.article-hero { padding: 64px 0 44px; background: linear-gradient(180deg, #f7faff, #fff); }
.article-hero h1 { max-width: 840px; font-size: clamp(2.1rem, 4vw, 3.6rem); }
.meta { margin-top: 16px; color: var(--muted); font-size: .93rem; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 285px; gap: 50px; align-items: start; }
.article { max-width: 760px; font-size: 1.05rem; }
.article h2 { margin: 42px 0 14px; font-size: 1.75rem; }
.article h3 { margin: 28px 0 10px; font-size: 1.28rem; }
.article p { margin: 0 0 18px; }
.article ul, .article ol { margin: 0 0 22px; padding-left: 25px; }
.article li { margin: 8px 0; }
.article blockquote { margin: 24px 0; padding: 18px 22px; border-left: 4px solid var(--blue); background: var(--soft); color: #334962; }
.toc { position: sticky; top: 20px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); }
.toc strong { display: block; margin-bottom: 10px; }
.toc a { display: block; margin: 8px 0; font-size: .92rem; }
.cta { margin-top: 44px; padding: 28px; border-radius: 14px; background: #102b56; color: #fff; }
.cta h2 { font-size: 1.65rem; }
.cta p { color: #cfddf2; }
.cta .button { background: #6da3ff; color: #0b2346; }
.footer { padding: 34px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 16px; }
code { padding: 2px 5px; border-radius: 4px; background: #eef3f8; font-size: .92em; }
@media (max-width: 820px) {
  .wrap { width: min(var(--max), calc(100% - 28px)); }
  .nav { min-height: 64px; }
  .nav-links a:not(.button) { display: none; }
  .hero { padding: 60px 0 54px; }
  .section { padding: 54px 0; }
  .grid.three, .grid.two, .article-layout { grid-template-columns: 1fr; }
  .toc { position: static; order: -1; }
}