/* ====================================
    ナビゲーションとフッターのスタイル
    ==================================== */
.custom-nav-area {
    width: 100%;
    max-width: 64rem;
    margin: 20px auto;
    text-align: center;
    padding: 0 1rem;
}
.custom-nav-table {
    width: 95%;
    max-width: 500px;
    height: 40px;
    padding: 8px;
    background-color: #FFFFFF;
    border: 1px solid #000000;
    border-radius: 5px;
    display: inline-table;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}
.custom-nav-table tr {
    display: table-row;
}
.custom-nav-table td {
    text-align: center;
    vertical-align: middle;
    border-right: 1px solid #000000;
    width: 33.33%;
}
.custom-nav-table td:last-child {
    border-right: none;
}
.custom-nav-table a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 500;
    display: block;
    padding: 4px 0;
    transition: color 0.15s;
}
.custom-nav-table a:hover {
    color: #1e40af;
}
.spacer {
    height: 20px;
}

.custom-footer {
    width: 100%;
    max-width: 64rem;
    margin: 2rem auto 0; /* フッターの上だけでなく、下にもマージンを追加するとバランスが良い場合があります */
    padding: 1rem;
    border-top: 2px solid #d1d5db;
    text-align: center;
    color: #4b5563;
    font-size: 0.875rem;
}
.custom-footer a {
    color: #3b82f6;
    text-decoration: none;
    margin: 0 0.5rem;
}
.custom-footer a:hover {
    text-decoration: underline;
}
.footer-logo {
    vertical-align: middle;
}