.alert-duplicado {
            background: #fff3cd;
            color: #856404;
            padding: 20px;
            border-radius: 10px;
            border: 2px solid #ffeaa7;
            margin-bottom: 20px;
        }
        
        .duplicado-info {
            background: #f8f9fa;
            border-left: 4px solid #dc3545;
            padding: 15px;
            margin: 15px 0;
            border-radius: 0 8px 8px 0;
        }
        
        .btn-modificar {
            background: #28a745;
            color: white;
        }
        
        .btn-modificar:hover {
            background: #218838;
        }
.modal-login {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.modal-login-content {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    animation: fadeIn 0.3s ease;
}

.modal-login-content h3 {
    margin-top: 0;
    color: #8B5E3C;
}

.modal-login-content p {
    color: #555;
    margin: 15px 0;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}