#calendar-container {
    margin: 20px;
}

#month-year-selector {
    margin-bottom: 10px;
}

#calendar {
    border-collapse: collapse;
    width: 100%;
}

th, td {
    border: 1px solid #dddddd;
    text-align: center;
    padding: 8px;
}

th {
    background-color: #f2f2f2;
}

.today {
    background-color: #e6ffe6;
}

.details {
    margin-top: 10px;
}

.details span {
    display: block;
    border-bottom: 1px solid #dddddd;
    padding: 5px;
}

.details a {
    text-decoration: none;
    color: blue;
}

/* カーソルをかわいくする */
td {
    cursor: pointer;
    transition: background-color 0.3s ease-in-out;
}

td:hover {
    background-color: #f0f0f0;
}
