.auth-body {
    min-height: 100vh;
    background: linear-gradient(145deg, #0f172a, #1e3a5f 55%, #0f172a);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
    padding: 2rem 1.75rem;
}

.brand-badge {
    display: inline-block;
    font-weight: 800;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
    color: #1d4ed8;
    border: 2px solid #1d4ed8;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
}

#btnEntrar.loading .btn-label {
    opacity: 0.6;
}

.env-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
}