:root{--bg1:#0e1330;--bg2:#1a2a5a;--bg-accent:rgba(255,255,255,.06);--card-border:rgba(255,255,255,.14);--text:#eef1f7;--muted:#c9d0e6;--btn-bg:rgba(255,255,255,.10);--btn-bg-hover:rgba(255,255,255,.18)}html,body{height:100%}body{margin:0;color:var(--text);background:radial-gradient(1200px 600px at 20% -10%,rgba(120,160,255,.18),transparent 60%),radial-gradient(900px 500px at 90% 10%,rgba(90,210,255,.10),transparent 60%),linear-gradient(160deg,var(--bg1),var(--bg2));background-attachment:fixed;-webkit-font-smoothing:antialiased}.subtitle{color:var(--muted)}.card{background:var(--bg-accent);border:1px solid var(--card-border);border-radius:14px;backdrop-filter:blur(6px) saturate(110%);-webkit-backdrop-filter:blur(6px) saturate(110%)}.btn{background:var(--btn-bg);color:var(--text);border-color:var(--card-border)}.btn:hover{background:var(--btn-bg-hover)}