:root {
  --ink: #14202b;
  --muted: #4c5a66;
  --accent: #0e7c7b;
  --accent-dark: #0a5d5c;
  --line: #d9e0e6;
  --bg: #f7f9fa;
  --card: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.site-header {
  background: var(--ink);
  color: #fff;
  padding: 18px 0;
}
.site-header .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.brand { font-weight: 800; letter-spacing: .06em; font-size: 20px; }
.brand span { color: #9fd8d7; font-weight: 600; }
.site-header nav a {
  color: #dfe9ee; text-decoration: none; margin-left: 18px; font-size: 15px;
}
.site-header nav a:hover { color: #fff; text-decoration: underline; }
.hero {
  background: linear-gradient(135deg, #14202b 0%, #0a5d5c 100%);
  color: #fff;
  padding: 56px 0 48px;
}
.hero h1 { font-size: 32px; line-height: 1.25; margin: 0 0 14px; }
.lede { font-size: 19px; color: #dcebe9; margin: 0; max-width: 700px; }
main section { margin: 40px 0; }
h2 { font-size: 24px; margin: 0 0 14px; border-bottom: 3px solid var(--accent); display: inline-block; padding-bottom: 4px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
}
.card h3 { margin-top: 0; font-size: 21px; }
.card ul { padding-left: 22px; }
.card li { margin: 6px 0; }
a { color: var(--accent-dark); }
ol.steps { padding-left: 22px; }
ol.steps li { margin: 10px 0; }
.card h3 { margin-bottom: 6px; }
footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding: 18px 0 30px;
  margin-top: 30px;
}
@media (max-width: 560px) {
  .hero h1 { font-size: 26px; }
  .site-header nav a { margin-left: 12px; }
}