/**
 * Estilos para Modales de Autenticación - VPN.GT
 * Modales de Login, Registro y Recuperación de Contraseña
 */

/* Modal Base */
.auth-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out;
}

.auth-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Contenido del Modal */
.modal-content {
    background: #ffffff;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease-out;
    position: relative;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Header del Modal */
.modal-header {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 25px 30px;
    border-radius: 15px 15px 0 0;
    position: relative;
    text-align: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
}

.modal-header .close {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
    line-height: 1;
}

.modal-header .close:hover {
    color: white;
}

/* Body del Modal */
.modal-body {
    padding: 30px;
}

/* Formularios */
.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8f9fa;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group i {
    position: absolute;
    right: 15px;
    top: 38px;
    color: #6c757d;
    font-size: 16px;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #6c757d;
    font-size: 12px;
}

/* Checkbox personalizado */
.checkbox-group {
    margin: 25px 0;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    margin-bottom: 0;
}

.checkbox-group input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #e1e5e9;
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-group input[type="checkbox"]:checked + .checkmark {
    background: #007bff;
    border-color: #007bff;
}

.checkbox-group input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Botones */
.auth-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.auth-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.auth-btn:active {
    transform: translateY(0);
}

.auth-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-loading {
    display: none;
}

.auth-btn.loading .btn-text {
    display: none;
}

.auth-btn.loading .btn-loading {
    display: inline-block;
}

/* Enlaces de autenticación */
.auth-links {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e1e5e9;
}

.auth-links a {
    display: block;
    color: #007bff;
    text-decoration: none;
    font-size: 14px;
    margin: 8px 0;
    transition: color 0.3s ease;
}

.auth-links a:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* Mensajes de estado */
.auth-message {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
}

.auth-message.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.auth-message.error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.auth-message.info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* Validación de formularios */
.form-group input.error {
    border-color: #dc3545;
    background: #fff5f5;
}

.form-group input.success {
    border-color: #28a745;
    background: #f8fff8;
}

.form-group .error-message {
    color: #dc3545;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.form-group.has-error .error-message {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10px;
    }
    
    .modal-header,
    .modal-body {
        padding: 20px;
    }
    
    .modal-header h2 {
        font-size: 20px;
    }
    
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"] {
        font-size: 16px; /* Evitar zoom en iOS */
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        margin: 5px;
        max-height: 95vh;
    }
    
    .modal-header,
    .modal-body {
        padding: 15px;
    }
}

/* Animaciones adicionales */
.auth-modal.closing {
    animation: fadeOut 0.3s ease-out forwards;
}

.auth-modal.closing .modal-content {
    animation: slideOut 0.3s ease-out forwards;
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideOut {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(-50px);
        opacity: 0;
    }
}

/* Efectos de carga */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accesibilidad */
.auth-modal:focus-within {
    outline: none;
}

.form-group input:focus,
.auth-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Tema oscuro (opcional) */
@media (prefers-color-scheme: dark) {
    .modal-content {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"] {
        background: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }
    
    .form-group input:focus {
        background: #2d3748;
        border-color: #63b3ed;
    }
    
    .form-group label {
        color: #e2e8f0;
    }
    
    .auth-links {
        border-top-color: #4a5568;
    }
}