.hidden {
    display: none;
}

.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 40vh;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.popup-content {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    width: 400px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.popup-content form label {
    display: block;
    margin: 10px 0 5px;
}

.popup-content form input,
.popup-content form button {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.popup-content form button {
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
}

.popup-content form button:hover {
    background-color: #0056b3;
}