/* ポップアップのスタイル */
.popup {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.popup-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* テーブルのスタイル */
#reservations-table {
    width: 100%;
    border-collapse: collapse;
}

#reservations-table th, #reservations-table td {
    border: 1px solid #ddd;
    padding: 8px;
}

#reservations-table tr:nth-child(even){background-color: #f2f2f2;}

#reservations-table tr:hover {background-color: #ddd;}

#reservations-table th {
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}