body {
    background-color: var(--dark-bg, #432000);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.register-container {
    max-width: 400px;
    margin: 60px auto;
    background: var(--card-bg, #ffffff);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.register-container h3 {
    font-weight: bold;
    margin-bottom: 10px;
    text-align: center;
}

.register-container .form-label {
    font-weight: 500;
}

.register-container .btn-dark {
    background-color: var(--primary-color, #1f2937);
    color: var(--text-light, white);
    width: 100%;
    margin-top: 10px;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition-base);
}

.register-container .btn-dark:hover,
.register-container .btn-dark:focus,
.register-container .btn-dark:active {
    background-color: var(--primary-dark, #c25200) !important;
    color: var(--text-light, white) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-link {
    font-size: 0.9rem;
}

.text-danger {
    font-size: 0.9rem;
    color: var(--danger-color, red) !important;
}

.text-danger-feedback {
    color: var(--danger-color, red);
}

/* Reglas responsivas */
@media (max-width: 576px) {
    .register-container {
        margin: 30px 15px;
        padding: 20px;
        max-width: none;
    }

    .register-container h3 {
        font-size: 1.5rem;
    }
}