/* header.php — .header, .header-logo, .burger（スティッキーヘッダー・ハンバーガーボタン） */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #fff;
    padding: 0 0 0 10px;
    display: flex;
    justify-content: space-between;
}
.header-logo {
    margin-top: 15px;
}
.burger {
    background-color: #000;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 19px 13px;
    cursor: pointer;
    border: none;
    font-family: inherit;
}
.burger__text {
    width: 40px;
    text-align: center;
}
.burger__text img {
    display: block;
    margin: auto;
}
.burger__btn {
    width: 34px;
    height: 9px;
    position: relative;
}
.burger__btn-item {
    width: 100%;
    height: 1px;
    background-color: #fff;
    display: block;
    position: absolute;
}
.burger__btn-item--1 {
    top: 0;
    left: 0;
}
.burger__btn-item--2 {
    bottom: 0;
    left: 0;
}