:root{color-scheme:dark;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#19222c;color:#e8edf1;line-height:1.6}*{box-sizing:border-box}body{margin:0}main{max-width:720px;margin:0 auto;padding:32px 20px 48px}header{margin-bottom:28px}h1{font-size:clamp(1.8rem,6vw,2.5rem);line-height:1.2}h2{font-size:1.25rem;margin:28px 0 10px}p,li{overflow-wrap:anywhere}a{color:#96d9df}a:focus-visible{outline:3px solid #96d9df;outline-offset:4px}nav{display:flex;flex-wrap:wrap;gap:12px 20px}small,.muted{color:#b2bec8}.panel{padding:18px 20px;border:1px solid #40515e;border-radius:14px;background:#202d38;margin:24px 0}footer{border-top:1px solid #40515e;margin-top:36px;padding-top:18px}