:root {
  --bg: #fbfaf7; --fg: #1f2328; --muted: #5f6670; --line: #e4e1da;
  --accent: #0f6b5c; --accent-fg: #fff; --card: #fff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171a; --fg: #eef0f2; --muted: #a3abb4; --line: #2b3036; --accent: #4fc3a8; --accent-fg: #0b1f1a; --card: #1b1f23; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
       font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main, header, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; gap: 12px; }
header .brand { font-weight: 700; color: var(--fg); text-decoration: none; }
header nav a { color: var(--muted); margin-left: 12px; font-size: .9rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 32px 0 8px; }
h2 { font-size: 1.3rem; margin: 32px 0 8px; }
h3 { margin: 0 0 4px; font-size: 1.1rem; }
p.lead { color: var(--muted); font-size: 1.05rem; }
a { color: var(--accent); }
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.price { font-size: 1.4rem; font-weight: 700; margin: 4px 0; }
.small, .card ul { color: var(--muted); font-size: .9rem; }
.card ul { padding-left: 18px; margin: 8px 0 0; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-fg); padding: 10px 16px;
       border-radius: 8px; text-decoration: none; font-weight: 600; }
ol.steps li { margin-bottom: 6px; }
footer { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; padding-bottom: 32px; color: var(--muted); font-size: .85rem; }
footer a { color: var(--muted); }