:root{--bg: #0b1020;--bg-soft: #131a2e;--card: #1a2238;--text: #eef2ff;--muted: #9aa6c4;--line: #2a344f;--redacao: #6366f1;--simulado: #0ea5e9;--whatsapp: #22c55e}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 50% -10%,#1b2540 0,transparent 60%),var(--bg);background-color:var(--bg);color:var(--text)}.page{max-width:1040px;margin:0 auto;padding:40px 20px 64px}.hero{text-align:center;padding:24px 0 40px}.brand{display:inline-block;font-weight:800;letter-spacing:2px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);margin-bottom:22px}.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 12px;line-height:1.1}.subtitle{color:var(--muted);max-width:620px;margin:0 auto 28px;font-size:17px}.login{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;max-width:560px;margin:0 auto}.login input{flex:1 1 200px;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg-soft);color:var(--text);font-size:15px}.login input:focus{outline:2px solid var(--redacao);border-color:transparent}.login button{padding:12px 22px;border:0;border-radius:10px;background:var(--redacao);color:#fff;font-weight:600;font-size:15px;cursor:pointer}.login button:disabled{opacity:.6;cursor:default}.error{flex-basis:100%;color:#fca5a5;font-size:14px}.auth-status{display:flex;gap:14px;align-items:center;justify-content:center}.auth-status.muted{color:var(--muted)}.link-btn{background:none;border:0;color:var(--muted);text-decoration:underline;cursor:pointer}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:10px}.card h2{margin:0;font-size:20px}.card p{color:var(--muted);margin:0;flex:1;font-size:15px}.card-cta{margin-top:10px;display:inline-block;text-align:center;padding:11px 16px;border-radius:10px;font-weight:600;text-decoration:none;color:#fff}.card.redacao{border-top:3px solid var(--redacao)}.card.simulado{border-top:3px solid var(--simulado)}.card.whatsapp{border-top:3px solid var(--whatsapp)}.card.redacao .card-cta{background:var(--redacao)}.card.simulado .card-cta{background:var(--simulado)}.card.whatsapp .card-cta{background:var(--whatsapp)}.card-cta.disabled{opacity:.45;pointer-events:none}.foot{text-align:center;color:var(--muted);margin-top:36px;font-size:14px}