/* Alert Modal */
.alert-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    display: none;
    z-index: 1000;
    width: 80%;
    max-width: 300px;
    text-align: center;
}
.alert-box button {
    background: red;
    border: none;
    color: white;
    padding: 5px 10px;
    margin-top: 10px;
    cursor: pointer;
    border-radius: 4px;
}
.alert-box button:hover {
    background: darkred;
}
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 999;
}