:root {
  --bg: #f7f9fc;
  --ink: #0f1b2d;
  --muted: #5b6b7c;
  --line: #d7e0ea;
  --brand: #2f6fed;
  --brand-dark: #1f4fb8;
  --card: #ffffff;
  --accent: #e8f0ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #dce8ff 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #eef6ff 0%, transparent 50%),
    var(--bg);
  line-height: 1.6;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1080px, calc(100% - 2rem)); margin: 0 auto; }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.75); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.nav .brand { font-weight: 800; color: var(--ink); font-size: 1.15rem; letter-spacing: -0.02em; }
.nav nav { display: flex; flex-wrap: wrap; gap: .85rem; align-items: center; }
.nav a { color: var(--muted); font-size: .95rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand); color: #fff !important; border-radius: 10px;
  padding: .7rem 1.1rem; font-weight: 650; text-decoration: none !important;
}
.btn:hover { background: var(--brand-dark); }
.btn-ghost {
  display: inline-flex; border: 1px solid var(--line); border-radius: 10px;
  padding: .65rem 1rem; color: var(--ink) !important; background: #fff;
  text-decoration: none !important; font-weight: 600;
}
.hero { padding: 3.2rem 0 2rem; }
.hero h1 {
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.15;
  letter-spacing: -0.03em; margin: 0 0 1rem;
}
.hero .lead { font-size: 1.15rem; color: var(--muted); max-width: 46rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.4rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 1.25rem 1.35rem; margin: 1rem 0;
}
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
main h2 { margin-top: 2.2rem; letter-spacing: -0.02em; }
main h3 { margin-top: 1.4rem; }
.muted { color: var(--muted); }
.pill {
  display: inline-block; background: var(--accent); color: var(--brand-dark);
  border-radius: 999px; padding: .25rem .7rem; font-size: .8rem; font-weight: 700;
}
footer {
  margin-top: 3rem; border-top: 1px solid var(--line); padding: 2rem 0 3rem;
  color: var(--muted); font-size: .92rem;
}
footer .cols { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
footer strong { color: var(--ink); display: block; margin-bottom: .4rem; }
article p { max-width: 46rem; }
.prose li { margin: .35rem 0; }
@media (max-width: 640px) {
  .nav nav { display: none; }
}