.popup-btn {
    padding: 10px 20px;
    background: #009646;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}
.popup-btn:hover {
    background: #007838;
}

.popup-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.popup-overlay.active {
    display: flex;
    opacity: 1;
}

.popup-modal {
    background: #fff;
    padding: 24px 32px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    text-align: center;
    max-width: 400px;
    animation: popupIn 0.3s ease;
}

.popup-message {
    font-size: 16px;
    margin-bottom: 20px;
    color: #333;
}

.close-popup {
    background: #009646;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
}
.close-popup:hover {
    background: #007838;
}

@keyframes popupIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}