body {
    font-family: "BIZ UDGothic", sans-serif;
    font-weight: 400;
    font-style: normal;
    margin: 0;
    padding: 0;
}
/* 上部固定ヘッダー */
.fixed-top-header {
    background-color: #265E88;
    color: white;
    padding: 10px 15px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    /*justify-content: space-between;*/
    justify-content: flex-start;
    align-items: center;
}
.fixed-top-header img.logo {
    height: 40px;
    margin-right: 10px;
}
.fixed-top-header h1 {
    margin: 0;
    font-size: 1.5rem;
}
.fixed-top-header .nav-item {
    margin-right: 15px;
}

/* サイドナビゲーション (PC用) */
.sidebar {
    width: 250px;
    background-color: #265E88;
    color: #fff;
    position: fixed;
    height: calc(100% - 40px);
    top: 60px;
    bottom: 60px;
    overflow-y: auto;
    display: none;
    transition: transform 0.3s ease;
    z-index: 1040;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}
.sidebar li  a {
    display: block;
}
.sidebar ul li {
    padding: 10px;
    border-bottom: 1px solid #ffffff;
}
.sidebar ul li ul {
    padding-left: 5px;
}
.sidebar ul li ul li {
    padding: 3px;
    border-bottom: none;
}

.sidebar a,span {
    color: #fff;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
}
.sidebar a:hover, .sidebar a.active {
    background-color: #5c86a6;
}

.menu-icon {
    display: none;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1030;
}

/* 下部固定ナビゲーション (スマホ/タブレット用) */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #265E88;
    color: #fff;
    z-index: 1000;
    font-size: 13.5px
}
.bottom-nav a {
    color: #fff;
    text-decoration: none;
    padding: 10px 0;
    display: block;
    text-align: center;
    font-size: 1.2em;
}
.bottom-nav .nav-item {
    flex-grow: 1;
}
.bottom-nav .nav-item i {
    display: block;
    font-size: 1.5em;
}
.bottom-nav a.active {
    background-color: #5c86a6;
}

/* メディアクエリ */
@media (min-width: 992px) {
    .sidebar {
        display: block;
    }
    .content {
        margin-left: 250px;
        margin-top: 60px; /* ヘッダーの高さ分の余白を追加 */
        padding: 15px;
        box-sizing: border-box;
        min-height: calc(100vh - 120px);  /*ヘッダーとフッターの高さを除いた高さを確保 */
    }
    body {
        padding-bottom: 60px;
        margin: 0;
    }
}

@media (max-width: 991px) {
    body {
        margin: 0;
        display: flex;
        flex-direction: column;
        min-height: 100vh; /* 高さを100%に設定 */
    }
    .bottom-nav {
        display: flex;
        justify-content: space-around;
    }
    .content {
        flex: 1;
        padding: 75px 20px 60px 20px;
        padding-top:  80px;
        box-sizing: border-box;
        padding-bottom: 80px;
    }
    .footer {
        margin-bottom: 60px;
        padding: 10px 20px;
        width: 100%;
        text-align: center;
    }
    .sidebar {
        transform: translateX(-100%);
        top: 66px;
    }
    .sidebar.show {
        transform: translateX(0);
        display: block;
    }
    .menu-icon {
        margin-right: 10px;
        display: block;
    }
    .menu-text {
        font-size: 10px;
    }
    .overlay {
        display: none;
    }

    .fixed-top-header h1 {
        font-size: 1.1rem;
    }
}