:root { --ink: #16233a; --muted: #5b6577; --brand: #1f6fd1; --bg: #f4f7fb; --card: #fff; --line: #e3e8f0; }
@media (prefers-color-scheme: dark) { :root { --ink: #e8edf5; --muted: #9aa5b5; --brand: #5ea2f0; --bg: #0f1726; --card: #172238; --line: #26334d; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); 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: 24px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header b { font-size: 22px; display: block; }
header span { color: var(--muted); font-size: 14px; }
h1 { font-size: 28px; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; margin: 16px 0; }
a { color: var(--brand); }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; font-size: 14px; }
.lang { display: flex; gap: 10px; font-size: 14px; margin-bottom: 8px; }