:root {
  --navy: #0b1f4a;
  --teal: #0e9aa0;
  --mint: #1fe0b8;
  --ink: #16233f;
  --muted: #5d6b85;
  --line: #e3e8f0;
  --bg: #f5f8fb;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--teal); }
h1, h2, h3 { color: var(--navy); line-height: 1.25; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.site { background: #fff; border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
header.site img { height: 40px; width: auto; display: block; }
header.site nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
header.site nav a { color: var(--navy); text-decoration: none; font-weight: 600; }
header.site nav a:hover { color: var(--teal); }
.hero { background: linear-gradient(135deg, var(--navy) 0%, #0d3b66 55%, var(--teal) 100%); color: #fff; padding: 72px 0 80px; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 50px); margin: 0 0 16px; max-width: 760px; }
.hero p { font-size: 20px; max-width: 680px; margin: 0 0 28px; color: #e4f3f6; }
.btn { display: inline-block; background: var(--mint); color: var(--navy); font-weight: 700; padding: 12px 22px; border-radius: 10px; text-decoration: none; }
.btn:hover { background: #fff; }
.btn.ghost { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.6); margin-left: 8px; }
section { padding: 56px 0; }
section h2 { font-size: 30px; margin: 0 0 12px; }
.lead { color: var(--muted); max-width: 720px; margin: 0 0 32px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }
.band { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
ol.steps { padding-left: 22px; max-width: 760px; }
ol.steps li { margin-bottom: 10px; }
footer.site { background: var(--navy); color: #c9d4e8; padding: 32px 0; font-size: 15px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site a { color: #fff; }
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; }
.doc { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 36px clamp(20px, 5vw, 48px); margin: 40px auto 56px; max-width: 860px; }
.doc h1 { font-size: 34px; margin-top: 0; }
.doc h2 { font-size: 22px; margin-top: 36px; }
.doc h3 { font-size: 18px; margin-top: 24px; }
.doc .meta { color: var(--muted); font-size: 15px; }
.doc li { margin-bottom: 6px; }
.callout { background: #eef7f8; border-left: 4px solid var(--teal); padding: 12px 16px; border-radius: 8px; }