:root{--bg:#0a0f1f;--text:#e2e8f0;--muted:#94a3b8;--accent:#22d3ee;--border:rgba(148,163,184,0.2)}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--text);font-family:Manrope,system-ui,-apple-system,Segoe UI,sans-serif}.main{min-height:100vh;display:grid;align-content:center;gap:16px;padding:48px}.card{border:1px solid var(--border);border-radius:16px;padding:24px;background:rgba(15,23,42,.6);max-width:720px}.muted{color:var(--muted)}