:root{color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:#091629;color:#f4f7ff}
*{box-sizing:border-box}body{margin:0;padding:24px}main{max-width:760px;margin:auto}
a{color:#89dded}header{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid #294057;padding-bottom:16px}
.brand{font-weight:850;letter-spacing:.16em;text-decoration:none;color:#f4f7ff}.languages{display:flex;gap:12px}
h1{font-size:clamp(2rem,5vw,3rem);letter-spacing:-.04em;margin:32px 0 12px}h2{font-size:1.2rem;margin:28px 0 8px}
p,li{line-height:1.65;color:#c9d7e7}ul{padding-left:22px}.card{background:#10243a;border:1px solid #294057;border-radius:16px;padding:18px 22px;margin:20px 0}
.action{display:inline-block;background:#83dae9;color:#092033;text-decoration:none;padding:12px 18px;border-radius:12px;font-weight:700}
footer{border-top:1px solid #294057;margin-top:40px;padding:20px 0;font-size:.9rem}
section[lang]{scroll-margin-top:20px}section[lang]+section[lang]{border-top:1px solid #294057;margin-top:52px;padding-top:20px}