:root{--bg:#070b16;--card:#10182b;--line:#263454;--text:#f6f8ff;--muted:#aeb9d3;--accent:#55d6be;--blue:#629bff}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#070b16,#10172a);color:var(--text);font:16px/1.7 system-ui,-apple-system,Segoe UI,sans-serif}header,footer{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:20px max(5vw,24px);background:#080d1b;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:900;letter-spacing:.12em;color:var(--accent);text-decoration:none}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{color:var(--text);text-decoration:none}.login,.button{background:var(--accent);color:#06110f!important;padding:8px 16px;border-radius:9px;font-weight:800}main{width:min(1080px,90%);margin:55px auto}h1{font-size:clamp(32px,5vw,58px);line-height:1.08;margin-bottom:16px}h2{margin-top:40px;font-size:28px}p,li{color:var(--muted)}.lead{font-size:20px;max-width:800px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:20px;margin:30px 0}.card,.notice{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}.card h2,.card h3{margin-top:0;color:var(--text)}a{color:#83b2ff}.notice{margin-top:45px}footer{border-top:1px solid var(--line);border-bottom:0;color:var(--muted)}@media(max-width:720px){header,footer{align-items:flex-start;flex-direction:column}main{margin:35px auto}nav{gap:12px}}