.cls-trigger-btn {
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.cls-trigger-btn:hover {
    background: #005a87;
}

.cls-popup {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.cls-popup-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease;
}

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

.cls-popup-header {
    background: #0073aa;
    color: #fff;
    padding: 20px;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cls-popup-header h3 {
    margin: 0;
    font-size: 18px;
}

.cls-close {
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.cls-close:hover {
    opacity: 0.7;
}

.cls-popup-body {
    padding: 30px;
}

.cls-step {
    display: none;
    margin-bottom: 20px;
}

.cls-step.active {
    display: block;
}

.cls-step h4 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 16px;
}

.cls-select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    background: #fff;
}

.cls-select:focus {
    border-color: #0073aa;
    outline: none;
}

.cls-language-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cls-language-option {
    display: flex;
    align-items: center;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cls-language-option:hover {
    border-color: #0073aa;
    background: #f0f8ff;
}

.cls-language-option input[type="radio"] {
    margin-right: 10px;
    transform: scale(1.2);
}

.cls-language-option input[type="radio"]:checked + span {
    font-weight: bold;
    color: #0073aa;
}

.cls-language-option input[type="radio"]:checked {
    accent-color: #0073aa;
}

.cls-confirm-btn {
    width: 100%;
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 15px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.cls-confirm-btn:hover:not(:disabled) {
    background: #005a87;
}

.cls-confirm-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* Responsive design */
@media (max-width: 600px) {
    .cls-popup-content {
        width: 95%;
        margin: 10% auto;
    }

    .cls-popup-header,
    .cls-popup-body {
        padding: 20px;
    }
}