:root {
  --bg: #08090c;
  --surface: #14161b;
  --border: #282c35;
  --text: rgb(255 255 255 / 0.87);
  --muted: rgb(255 255 255 / 0.6);
  --accent: #ff6b57;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7f9;
    --surface: #ffffff;
    --border: #e1e4ea;
    --text: rgb(11 12 16 / 0.87);
    --muted: rgb(11 12 16 / 0.62);
    --accent: #cf412d;
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
html { background: var(--bg); color: var(--text); font: 16px/1.55 Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
body { margin: 0; padding: 0 16px calc(48px + env(safe-area-inset-bottom)); }
main { max-width: 680px; margin: 0 auto; }
header { display: flex; align-items: center; gap: 12px; padding: calc(24px + env(safe-area-inset-top)) 0 32px; }
header img { width: 40px; height: 40px; border-radius: 10px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 18px; }
h1 { font-size: 32px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--muted); }
p.lead { color: var(--text); font-size: 18px; }
a { color: var(--accent); }
ul { padding-left: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin: 16px 0; }
.lang { display: flex; gap: 12px; margin: 0 0 24px; font-size: 14px; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 16px; }
@media (min-width: 768px) { h1 { font-size: 40px; } body { padding-left: 32px; padding-right: 32px; } }