:root{
  --bg:#0f1214;
  --card:#151a1e;
  --muted:#a8b0b6;
  --text:#e7edf2;
  --gold:#c9a227;
  --green:#1fbf72;
  --accent:#2a3137;
  --border:#2a2f35;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#0b0e10,#0f1214 40%,#0b0e10)}
a{text-decoration:none;color:inherit}
.container{max-width:1100px;margin:0 auto;padding:24px}

.header{padding:48px 0;background:radial-gradient(1200px 420px at 50% -10%, rgba(201,162,39,0.18), transparent 70%)}
.brand{display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.logo{width:60px;height:60px;background:linear-gradient(145deg,#11161a,#0a0d10);border:1px solid var(--border);border-radius:16px;display:grid;place-items:center;box-shadow:0 8px 32px rgba(0,0,0,.35), inset 0 0 0 1px #000}
.gear{width:32px;height:32px;fill:var(--gold);opacity:.9}
.titles h1{font-size:clamp(22px,3vw,36px);margin:0;font-weight:800;letter-spacing:.3px}
.subtitle{margin:.25rem 0 0;color:var(--muted)}

.cta-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:16px}
.btn{padding:12px 18px;border-radius:14px;border:1.5px solid var(--border);background:var(--card);cursor:pointer;font-weight:600;transition:.2s;display:inline-block}
.btn:hover{transform:translateY(-1px)}
.btn-outline{border-color:var(--gold);background:#0e1114}
.btn-outline:hover{box-shadow:0 0 0 3px rgba(201,162,39,.18)}
.btn-gold{background:var(--gold);color:#171a1d;border-color:#f1d47a}
.btn-gold:hover{filter:brightness(1.05)}

.how h2,.card h2{font-size:clamp(20px,2.4vw,28px);margin:.25rem 0 12px 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.step-num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--accent);border:1px solid var(--border);color:var(--gold);font-weight:800;margin-bottom:6px}

.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;margin:24px auto}
.muted{color:var(--muted)}
.small{font-size:.9rem}

.form label{display:grid;gap:8px;font-weight:600;margin-bottom:10px}
.form input,.form select{background:#0b0f12;border:1px solid var(--border);color:var(--text);border-radius:12px;padding:12px}
.form input::placeholder{color:#66717a}
.hidden{display:none}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.form-cta{margin-top:8px}

.quiz-grid label{font-weight:600}
.resultado{margin-top:12px}
.resultado.hidden{display:none}
.resultado-box{background:#0b0f12;border:1px solid var(--border);border-radius:16px;padding:16px}

.footer{padding:28px 0;border-top:1px solid var(--border);margin-top:32px}
.legal{color:#9fa8ae}

@media (max-width:820px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}