.bg-flat {
    background: linear-gradient(-45deg, rgb(9, 35, 182), rgb(6, 9, 145), #0079b9, rgb(14, 35, 226), #003c5c);    background-size: 200% 200%;
    animation: backgroundMove 10s ease infinite;
}

/* Animación suave al fondo (opcional, da vida sin ser invasivo) */
@keyframes backgroundMove {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.login-card h1 {
    font-size: 2.5rem;
    letter-spacing: 1px;
}

.login-card h5 {
    font-size: 1.2rem;
    font-weight: 400;
}

.form-floating input {
    font-size: 1rem;
}

/* Tarjeta profesional */
.login-card {
    max-width: 400px;
    width: 100%;
    background-color: #ffffff;
    border-radius: 1.25rem;
    /* box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1); */
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);

    transition: all 0.3s ease-in-out;
}

/* Inputs planos */
.flat-input {
    border: 1px solid #ddd;
    border-radius: 0.75rem;
    background-color: #fafafa;
}

/* Botón outline profesional */
.btn-outline-danger {
    border-radius: 2rem;
    font-weight: 500;
    transition: all 0.3s ease-in-out;
}

.btn-outline-danger:hover {
    background-color: #923232;
    color: white;
    border-color: #923232;
}