/* PWA Install Modal */
#pwa-install-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
#pwa-install-modal.show {
    display: flex;
}
.pwa-modal-content {
    background-color: #fff;
    padding: 24px;
    border-radius: 16px;
    width: 85%;
    max-width: 320px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    animation: pwa-slide-up 0.3s ease-out;
}
@keyframes pwa-slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.pwa-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #333;
}
.pwa-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.4;
}
.pwa-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.pwa-btn {
    flex: 1;
    padding: 10px 0;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
}
.pwa-btn:active {
    opacity: 0.8;
}
.pwa-btn-cancel {
    background-color: #f1f3f5;
    color: #495057;
}
.pwa-btn-install {
    background-color: #007bff;
    color: white;
}