/* Popup Styles mit globalen Variablen */
    .login-popup {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: var(--black-transparent-50);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .login-popup.active {
        opacity: 1;
        visibility: visible;
    }
    
    .login-content {
        background: var(--white);
        padding: var(--space-xxl);
        border-radius: var(--radius-md);
        width: 90%;
        max-width: 480px;
        box-shadow: var(--dropdown-shadow);
        position: relative;
    }
    
    .close-login, 
    .close-register {
        position: absolute;
        top: var(--space-md);
        right: var(--space-md);
        cursor: pointer;
        font-size: var(--text-xxxl);
        color: var(--text-light);
        background: none;
        border: none;
        padding: 0;
        transition: var(--transition-fast);
    }
    
    .close-login:hover,
    .close-register:hover {
        color: var(--text);
    }
    
    /* Verhindert Scrollen im Hintergrund */
    body.popup-active {
        overflow: hidden;
    }
    
    /* Anpassungen für Formulare im Popup */
    .login-popup .registration-container {
        padding: 0;
        margin: 0;
        box-shadow: none;
        background: transparent;
        max-width: 100%;
    }
    
    .login-popup h1,
    .login-popup h2 {
        margin-top: 0;
        font-size: var(--text-jumbo);
        font-weight: 600;
        color: var(--primary);
        margin-bottom: var(--space-xl);
        text-align: center;
    }
    
    /* Formular-Styles für Popups */
    .login-popup .form-group {
        margin-bottom: var(--space-lg);
    }
    
    .login-popup .form-control {
        width: 100%;
        padding: var(--space-md);
        border: 1px solid var(--black-transparent-10);
        border-radius: var(--radius-sm);
        font-size: var(--text-md);
        transition: var(--transition-fast);
    }
    
    .login-popup .form-control:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px var(--black-transparent-10);
    }
    
    .login-popup .btn-primary {
        width: 100%;
        padding: var(--space-md);
        background-color: var(--primary);
        color: var(--white);
        border: none;
        border-radius: var(--radius-sm);
        font-size: var(--text-md);
        font-weight: 500;
        cursor: pointer;
        transition: var(--transition-fast);
    }
    
    .login-popup .btn-primary:hover {
        background-color: var(--primary-dark);
        opacity: var(--hover-opacity);
    }
    
    /* Switch-Link Styles */
    .switch-to-login,
    .switch-to-register {
        color: var(--primary);
        font-weight: 500;
        text-decoration: none;
        cursor: pointer;
        transition: var(--transition-fast);
    }
    
    .switch-to-login:hover,
    .switch-to-register:hover {
        color: var(--primary-dark);
        text-decoration: underline;
    }
    
    /* Messages/Alerts */
    .login-popup .messages {
        margin-bottom: var(--space-xl);
    }
    
    .login-popup .alert {
        padding: var(--space-md);
        border-radius: var(--radius-sm);
        margin-bottom: var(--space-md);
    }
    
    .login-popup .alert-error {
        background-color: var(--danger-color);
        color: var(--white);
    }
    
    .login-popup .alert-success {
        background-color: var(--success-color);
        color: var(--white);
    }
    
    /* Responsive Anpassungen */
    @media (max-width: 480px) {
        .login-content {
            padding: var(--space-xl);
        }
        
        .login-popup h1,
        .login-popup h2 {
            font-size: var(--text-xl);
        }
    }