body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f6f7fb;
    color: #222;
}
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: #0d47a1;
    color: #fff;
}
.topbar a { color: #fff; margin-left: 12px; text-decoration: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: center; }
.card { background: #fff; padding: 20px; border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.steps { list-style: none; padding: 0; }
.steps li { margin: 6px 0; }
.wizard .progress { margin-bottom: 20px; position: relative; }
.wizard #progressBar { height: 8px; background: linear-gradient(90deg, #2196f3, #42a5f5); width: 20%; border-radius: 4px; transition: width .3s; }
.steps-labels { display: flex; justify-content: space-between; position: absolute; width: 100%; top: -10px; }
.steps-labels span { width: 24px; height: 24px; background: #fff; border: 2px solid #2196f3; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; }
.step { display: none; }
.step.active { display: block; }
label { display: block; margin-bottom: 12px; font-weight: 600; }
input, textarea, select, button { width: 100%; padding: 10px; margin-top: 6px; box-sizing: border-box; }
textarea { min-height: 90px; }
button { background: #2196f3; color: #fff; border: none; border-radius: 4px; cursor: pointer; font-weight: 700; }
button:hover { background: #1976d2; }
.actions { display: flex; gap: 10px; }
.alert { background: #ffebee; color: #b71c1c; padding: 10px; border-radius: 6px; margin-bottom: 10px; }
.facturacion-group.hidden { display: none; }
.auth-page { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: linear-gradient(135deg, #e3f2fd, #f1f8e9); }
@media(max-width: 900px){ .hero { grid-template-columns: 1fr; } .topbar { flex-direction: column; gap: 8px; } }