#custom-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#custom-popup, #popup-success {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
    animation: popupFadeIn 0.3s ease-out;
}

@keyframes popupFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.popup-header {
    padding: 20px 20px 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.popup-header h3 {
    margin: 0;
    color: #333;
    font-size: 1.4em;
    font-weight: 600;
}

.popup-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #666;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.popup-close:hover {
    background: #f0f0f0;
    color: #333;
}

.popup-body {
    padding: 20px;
}

.popup-body p {
    margin-bottom: 15px;
    color: #666;
    line-height: 1.5;
}

.form-group {
    margin-bottom: 15px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #007cba;
}

.consent-text {
    margin: 15px 0;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 3px solid #6c757d;
}

.consent-text small {
    color: #666;
    line-height: 1.4;
}

#popup-submit {
    width: 100%;
    padding: 12px;
    background: #007cba;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

#popup-submit:hover {
    background: #005a87;
}

#popup-submit:disabled {
    background: #ccc;
    cursor: not-allowed;
}

#popup-success .popup-body {
    text-align: center;
}

#popup-success strong {
    font-size: 1.2em;
    color: #007cba;
    display: block;
    margin: 10px 0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    #custom-popup, #popup-success {
        width: 95%;
        margin: 20px;
    }
    
    .popup-header h3 {
        font-size: 1.2em;
    }
}