:root {
  --brand: #e8394d;
  --bg: #ffffff;
  --surface: #f6f6f8;
  --text: #1b1b1f;
  --muted: #5d5e66;
  --border: #e3e3e8;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111114;
    --surface: #1c1c21;
    --text: #ececf0;
    --muted: #a2a3ad;
    --border: #2d2d34;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }

header { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
header img { width: 56px; height: 56px; border-radius: 14px; }
header a { color: inherit; text-decoration: none; }
header strong { font-size: 22px; }

h1 { font-size: 30px; line-height: 1.2; margin: 24px 0 4px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 14px; }
a { color: var(--brand); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 20px 0;
}
.card ul { margin: 0; padding-left: 20px; }

.lang { display: flex; gap: 8px; margin: 16px 0; }
.lang a {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.lang a.active { background: var(--brand); border-color: var(--brand); color: #fff; }

footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); }
footer a { margin-right: 16px; }