:root { --ink: #1b1f24; --muted: #5b6470; --accent: #0a5cc2; --bg: #fff; --soft: #f3f5f8; }
* { 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); padding-bottom: 64px; }
header { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid #e3e7ec; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 12px; }
h2 { font-size: 22px; margin-top: 32px; }
.lead { font-size: 19px; color: var(--muted); }
a { color: var(--accent); }
.btn { display: inline-block; padding: 12px 20px; margin: 4px 8px 4px 0; border-radius: 8px; background: var(--accent); color: #fff; font-weight: 600; text-decoration: none; }
.btn.alt { background: var(--soft); color: var(--ink); }
footer { background: var(--soft); padding: 24px 16px; text-align: center; color: var(--muted); font-size: 15px; }
.callbar { position: fixed; left: 0; right: 0; bottom: 0; padding: 16px; text-align: center; background: var(--accent); color: #fff; font-weight: 700; text-decoration: none; }
@media (min-width: 900px) { .callbar { display: none; } body { padding-bottom: 0; } }