/* Fondo general */
body {
    background: linear-gradient(135deg, #5f9cff 0%, #3d7be0 100%);
    min-height: 100vh;
}

/* Centrado vertical real */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Card del login */
.login-card {
    width: 100%;
    max-width: 420px;
    border-radius: 18px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border: none;
    padding: 1.5rem;
    background-color: #ffffff;
    animation: fadeInUp 0.4s ease;
}

/* Cabecera */
.login-card .card-header {
    background: transparent;
    border-bottom: none;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Inputs */
.login-card .form-control {
    border-radius: 10px;
    padding: 0.6rem 0.9rem;
}

/* Botón */
.login-card .btn-primary {
    border-radius: 10px;
    padding: 0.6rem;
    font-weight: 500;
}

/* Animación suave */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}