.container {
    display: flex;
    flex: 1;
}

.sidebar {
    width: 15%;
    color: white;
    background: linear-gradient(145deg, #a8e063, #8bc34a, #558b2f);
    padding: 20px;
    font-family: 'Fredoka One', cursive;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-shadow: 2px 2px 0 #000, -2px 2px 0 #000, 2px -2px 0 #000, -2px -2px 0 #000; /* 枠線を追加 */
}

.sidebar a {
    color: white;
    display: block;
    padding: 10px;
    font-size: 20px;
    text-decoration: none;
    margin-bottom: 10px;
    text-align: center;
    border-radius: 15px;
    background-color: #ff6f61;
    transition: background-color 0.3s ease, color 0.3s ease;
    border: 2px solid black; /* 枠線を追加 */
    font-weight: bold;
    font-family: 'Roboto', sans-serif;
    text-shadow: 1px 1px 0 #000, -1px 1px 0 #000, 1px -1px 0 #000, -1px -1px 0 #000; /* 枠線を追加 */
}

.accordion {
    cursor: pointer;
    padding: 12px 40px;  /* 左右に余白 */
    width: 100%;

    text-align: center;  /* ← 中央寄せ */
    font-weight: bold;
    font-size: 18pt;

    background-color: #ffffff;
    border: 3px solid #000;
    border-radius: 4px;

    position: relative;
}

.accordion::after {
    content: "";
    border: solid black;
    border-width: 0 2px 2px 0;
    display: inline-block;
    padding: 4px;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-60%) rotate(45deg);
    transition: transform 0.3s ease;
}

.accordion.active::after {
    transform: translateY(-40%) rotate(-135deg);
}


.accordion-content {
    padding: 0 18px;
    display: none;
    overflow: hidden;
    margin-bottom: 10px;
    border: 1px solid #000;
    border-radius: 5px;
    font-size: 18pt;
    width: 95%;
    margin-left: auto;
    margin-right: auto;
}

.side-accordion {
    background-color: blue;
    color: white;
    cursor: pointer;
    padding: 10px;
    width: 100%;
    text-align: center;
    outline: none;
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    font-size: 20px;
    margin-bottom: 10px;
    border-radius: 15px;
    border: 2px solid black; /* 枠線を追加 */
    text-shadow: 1px 1px 0 #000, -1px 1px 0 #000, 1px -1px 0 #000, -1px -1px 0 #000; /* 枠線を追加 */
}

.side-accordion-content {
    padding: 0 18px;
    display: none;
    overflow: hidden;
    font-family: 'Roboto', sans-serif;
    border-radius: 5px;
    font-weight: bold;
    font-size: 16px;
    margin-bottom: 5px;
}

.side-accordion-content a {
    display: block;
    padding: 10px;
    text-decoration: none;
    color: white;
    border-bottom: 1px solid #ccc;
    font-size: 16px;
    border: 2px solid black; /* 枠線を追加 */
    text-shadow: 1px 1px 0 #000, -1px 1px 0 #000, 1px -1px 0 #000, -1px -1px 0 #000; /* 枠線を追加 */
}

.content {
    flex: 1;
    padding: 20px;
    background-color: #ffffff;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    margin: 20px;
    font-family: 'Roboto', sans-serif;
    display: flex;
    flex-direction: column;
}

footer {
    background: linear-gradient(145deg, #388e3c, #2e7d32, #1b5e20);
    color: white;
    text-align: center;
    padding: 1em 0;
    box-shadow: 0 -8px 20px rgba(0, 0, 0, 0.3);
    border-top: 5px solid rgba(0, 0, 0, 0.2);
    font-family: 'Fredoka One', cursive;
    text-shadow: 2px 2px 0 #000, -2px 2px 0 #000, 2px -2px 0 #000, -2px -2px 0 #000; /* 枠線を追加 */
}

.schedule-table {
    width: 60%;
    margin: 40px auto;
    border-collapse: collapse;
    background-color: white;
}

.schedule-table td {
    border: 2px solid #000;
    padding: 15px 20px;
    font-size: 28px;
}

.time-cell {
    width: 40%;
    text-align: center;
}

.content-cell {
    width: 60%;
    text-align: center;
}