:root { --bg: #12141a; --panel: #1c1f28; --line: #333a4a; --text: #e8eaf0; --muted: #9aa0b2; --gold: #f5c542; --red: #e74c3c; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at top, #232a3e 0%, var(--bg) 70%) fixed; color: var(--text); font: 16px/1.65 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
main { max-width: 820px; margin: 0 auto; padding: 28px 18px 60px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.logo { font-weight: 900; letter-spacing: 3px; font-size: 22px; color: var(--text); text-decoration: none; }
.logo span { color: var(--red); margin-left: 4px; }
.langs { display: flex; gap: 6px; }
.langs button { font: inherit; font-size: 14px; background: var(--panel); color: var(--muted); border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; cursor: pointer; }
.langs button.on { color: var(--text); border-color: var(--gold); }
h1 { font-size: 32px; margin: 18px 0 4px; }
h2 { font-size: 20px; margin: 30px 0 8px; color: var(--gold); }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 14px; }
.fill { background: rgba(245,197,66,0.15); color: var(--gold); padding: 0 4px; border-radius: 4px; }
ul { padding-left: 22px; }
a { color: var(--gold); }
.box { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 16px 0; }
[data-lang] { display: none; }
[data-lang].show { display: block; }
footer { margin-top: 40px; color: var(--muted); font-size: 14px; }