:root{--bg:#090b18;--bg2:#10152a;--text:#e6edf3}.container{max-width:1120px;margin:0 auto;padding:24px}html,body{margin:0;background:linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text);font:16px/1.6 system-ui}header{position:sticky;top:0;background:rgba(0,0,0,.3)}.nav{display:flex;justify-content:space-between}.menu{display:flex;gap:14px}.card{border:1px solid rgba(255,255,255,.1);padding:16px;border-radius:12px}