:root {
  --bg: #eef2f7;
  --surface: #f8fafc;
  --card: #ffffff;
  --text: #111827;
  --muted: #5b6b82;
  --line: #d6dde7;
  --primary: #0d6c95;
  --primary-dark: #095574;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1100px, 92%); margin: 0 auto; }
.narrow { width: min(820px, 92%); }
.site-header { position: sticky; top: 0; z-index: 20; background: #f2f5f9d9; backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark { width: 18px; height: 18px; border-radius: 4px; border: 1px solid #9fc4d5; background: linear-gradient(145deg, #b9d8e6, #0d6c95); display: inline-block; }
.nav-list { list-style: none; display: flex; margin: 0; padding: 0; gap: 20px; }
.nav-list a { color: var(--muted); font-weight: 500; }
.nav-list a.active, .nav-list a:hover { color: var(--primary); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.ghost-link { color: var(--muted); font-weight: 500; }
.btn { display: inline-block; padding: 10px 16px; border-radius: 8px; font-weight: 600; border: 1px solid transparent; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; border-color: var(--line); }
.hero { text-align: center; padding: 80px 0 90px; }
.badge { display: inline-block; border: 1px solid #b2c9d8; border-radius: 999px; padding: 6px 12px; color: var(--primary); font-size: 14px; }
h1 { font-size: clamp(2rem, 5.5vw, 4.2rem); line-height: 1.15; margin: 16px 0; }
.text-accent { color: #2a86c2; }
.lead { font-size: 1.25rem; color: var(--muted); }
.cta-row { margin-top: 28px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.section { padding: 72px 0; }
.alt { background: #f3f6fb; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-sub { color: var(--muted); margin-bottom: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 22px; }
.card h3 { margin-top: 0; }
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 24px; align-items: center; }
.terminal { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px; box-shadow: 0 14px 40px #4257701a; font-family: "SFMono-Regular", Consolas, monospace; color: #2b5f83; overflow: auto; }
.page { padding: 72px 0; }
h2 { margin-top: 40px; margin-bottom: 12px; font-size: 2rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 36px 0; }
.callout { display: inline-block; padding: 12px 14px; border: 1px solid #e9acac; border-radius: 8px; background: #fff2f2; color: #a32121; font-weight: 700; }
table { width: 100%; background: #fff; border: 1px solid var(--line); border-radius: 8px; border-collapse: separate; border-spacing: 0; overflow: hidden; }
th, td { padding: 10px 14px; border-bottom: 1px solid var(--line); }
tr:last-child th, tr:last-child td { border-bottom: 0; }
th { text-align: left; color: var(--muted); width: 35%; font-weight: 600; }
.faq-list { display: grid; gap: 10px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }
.site-footer { background: #f7f9fb; border-top: 1px solid var(--line); margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 18px; padding: 42px 0; }
.footer-grid h4 { margin-top: 0; margin-bottom: 8px; }
.footer-grid a { display: block; color: var(--muted); margin-bottom: 7px; }
.muted { color: var(--muted); }
@media (max-width: 900px) {
  .nav-list { display: none; }
  .card-grid, .two-col, .split, .footer-grid { grid-template-columns: 1fr; }
  .header-inner { flex-wrap: wrap; }
  h2 { font-size: 1.5rem; }
}