/* ==============================
   Loader版ハンバーガーメニュー
   ============================== */

/* ハンバーガーメニュー（ローダー用） */
.loader-menu {
    position: absolute;
    top: 24px;
    right: 20px;
    z-index: 120;
}

.loader-btn {
    display: block;
    width: 40px;
    height: 40px;
    position: relative;
    background-color: #ff9b45;
    border-radius: 100%;
    transition: 0.5s;
}

.loader-btn:hover {
    background-color: #E74407;
}

/* 三本のうち真ん中の線 */
.loader-line_icon {
    position: absolute;
    top: 20px;
    left: 9px;
    display: block;
    width: 22px;
    height: 2px;
    background-color: #ffffff;
    opacity: 1;
    transition: background-color .35s ease;
}

/* 上の線 */
.loader-line_icon:before {
    position: absolute;
    top: -7px;
    display: block;
    content: "";
    width: 22px;
    height: 2px;
    background-color: #ffffff;
    opacity: 1;
    transition: transform .5s ease, top .5s ease;
    transform-origin: center;
}

/* 下の線 */
.loader-line_icon:after {
    position: absolute;
    top: 7px;
    left: 0;
    right: 0;
    margin: auto;
    display: block;
    content: "";
    width: 22px;
    height: 2px;
    background-color: #ffffff;
    opacity: 1;
    transition: transform .5s ease, top .5s ease;
    transform-origin: center;
}

/* 三→× */
.closebtn {
    background-color: transparent;
}

.closebtn:before {
    top: 0;
    background-color: #ffffff;
    transform: rotate(45deg);
    left: 0;
}

.closebtn:after {
    top: 0;
    background-color: #ffffff;
    transform: rotate(-45deg);
    left: 0;
}

/* スライドメニュー本体（ローダー用） */
.loader-slide-menu-back {
    pointer-events: none;
    padding: 0 65px;
    min-height: 100vh;
    /* 古いブラウザ用のフォールバック */
    min-height: 100dvh;
    background-color: transparent;
    position: fixed;
    top: 0;
    right: -100%;
    /* 画面の外（右側）に待機 */
    z-index: 119;
    transition: right .35s cubic-bezier(.2, .7, .2, 1);
}

/* 開いたときに表示（右端にぴったり） */
html.is-loader-menu-open .loader-slide-menu-back {
    pointer-events: auto;
    right: 0;
}

/* 透明スクリーン（パネルの後ろ・ローダー専用） */
.loader-backdrop {
    position: fixed;
    inset: 0;
    background: transparent;
    opacity: 0;
    pointer-events: none;
    z-index: 117;
    transition: opacity .25s ease;
}

html.is-loader-menu-open .loader-backdrop {
    opacity: 1;
    pointer-events: auto;
}

/* メニュー表示中はスクロール固定（ローダー専用） */
html.is-loader-menu-open,
body.is-loader-menu-open {
    overflow: hidden;
}

/* パネル内の各項目を右→左で段階表示 */
.loader-slide-menu>.loader-slide-menu-item,
.loader-slide-menu__language-menu>li,
.loader-slide-menu__icon-menu>li {
    opacity: 0;
    transform: translateX(20px);
    will-change: transform, opacity;
}

/* 開いたときに順次スライドイン */
html.is-loader-menu-open .loader-slide-menu>.loader-slide-menu-item,
html.is-loader-menu-open .loader-slide-menu__language-menu>li,
html.is-loader-menu-open .loader-slide-menu__icon-menu>li {
    animation: panelItemIn .28s cubic-bezier(.2, .7, .2, 1) forwards;
    animation-delay: calc(var(--pidx, 0) * 60ms);
}

@keyframes panelItemIn {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* モーション軽減 */
@media (prefers-reduced-motion: reduce) {

    html.is-loader-menu-open .loader-slide-menu>.loader-slide-menu-item,
    html.is-loader-menu-open .loader-slide-menu__language-menu>li,
    html.is-loader-menu-open .loader-slide-menu__icon-menu>li {
        animation: none;
        opacity: 1;
        transform: none;
    }
}

.loader-slide-menu {
    margin: 125px 0 0 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.loader-slide-menu-link {
    color: #FF9B45;
    font-weight: 450;
    text-decoration: none;
    transition: 0.5s;
}

.loader-slide-menu-link:hover {
    color: #E74407;
}

/* WORKS サブメニュー */
.loader-slide-menu__works-category-menu {
    margin: 0;
    padding-left: 21px;
    /* overflow: hidden; */
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    transition: max-height .3s ease, opacity .2s ease;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.loader-slide-menu__works-category-menu.is-open {
    opacity: 1;
    visibility: visible;
    margin-block: 12px;
}

.loader-works-category-menu-item {
    margin-bottom: 5px;
    opacity: 0;
    transform: translateX(20px);
    will-change: transform, opacity;
}

/* 親が開いたら順番にスライドイン */
.loader-slide-menu__works-category-menu.is-open .loader-works-category-menu-item {
    animation: worksItemIn .24s cubic-bezier(.2, .7, .2, 1) forwards;
    animation-delay: calc(var(--idx, 0) * 70ms);
}

@keyframes worksItemIn {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 低速化・停止したい場合の配慮 */
@media (prefers-reduced-motion: reduce) {
    .loader-slide-menu__works-category-menu.is-open .loader-works-category-menu-item {
        animation: none;
        opacity: 1;
        transform: none;
    }
}

.loader-works-category-menu-link {
    color: #FF9B45;
    text-decoration: none;
    font-size: 14px;
    font-weight: 450;
    transition: 0.5s;
}

.loader-works-category-menu-link:hover {
    color: #E74407;
}

/* 言語切り替え */
.loader-slide-menu__language-menu {
    margin: 55px auto 0;
    display: flex;
    justify-content: space-between;
    width: 65px;
}

.language-menu {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.language-menu__link {
    color: #FF9B45;
    text-decoration: none;
    font-size: 12px;
    font-weight: 450;
    display: block;
    width: 28px;
    aspect-ratio: 1 / 1;
    border-radius: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.5s;
    border: 1.5px transparent solid;
}

.language-menu__link:hover {
    color: #E74407;
}

.language-menu__jp-link {
    text-indent: 2px;
}

.lanuage-selected {
    border: 1.5px #FF9B45 solid;
}

.lanuage-selected:hover {
    border: 1.5px #E74407 solid;
}

/* ホバー用アイコンプリロード */
.preload-icons::before {
    content: "";
    position: fixed;
    inset: -9999px;
    width: 1px;
    height: 1px;
    background:
        url("../loading-img/tsubu-icon--hover.png") no-repeat -9999px -9999px,
        url("../loading-img/insta-icon-b.png") no-repeat -9999px -9999px;
}

/* アイコンメニュー */
.loader-slide-menu__icon-menu {
    display: flex;
    width: 70px;
    justify-content: space-between;
    align-items: center;
    margin: 55px auto 0;
}

.slide-menu__icon-insta {
    display: block;
    aspect-ratio: 30 / 29.6;
    width: 24px;
    height: auto;
    background-image: url(../loading-img/insta-icon-a.png);
    background-repeat: no-repeat;
    background-size: contain;
    transition: 0.5s;
}

.slide-menu__icon-insta:hover {
    background-image: url(../loading-img/insta-icon-b.png);
}

.slide-menu__icon-tsubu {
    display: block;
    width: 35px;
    aspect-ratio: 50 / 38.1;
    height: auto;
    background-image: url(../loading-img/tsubu-icon.png);
    background-repeat: no-repeat;
    background-size: contain;
    transition: 0.5s;
}

.slide-menu__icon-tsubu:hover {
    background-image: url(../loading-img/tsubu-icon--hover.png);
}

/* 親を相対配置に、ベースライン余白を無効化 */
.slide-menu__icon-link {
    position: relative;
    display: inline-block;
    line-height: 0;
}

/* リスト体裁は任意 */
.loader-slide-menu-item {
    list-style: none;
}

/* WORKSリンク右側の矢印 */
.loader-slide-menu-link--works {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: .4em;
    padding-right: 1.2em;
}

.loader-slide-menu-link--works::after {
    --chev-size: .4em;
    content: "";
    width: var(--chev-size);
    height: var(--chev-size);
    margin-top: -2px;
    margin-left: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transform-origin: 50% 50%;
    transition: transform .22s ease;
}

.loader-slide-menu-item.is-open>.loader-slide-menu-link--works::after {
    transform: rotate(-135deg) translateY(1px);
    margin-top: 2px;
}

/* キーボード操作の見え方 */
.loader-slide-menu-link--works:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* 閉じる瞬間：全項目を同時に右へ抜けながらフェード */
html.is-loader-menu-open.is-loader-menu-closing .loader-slide-menu>.loader-slide-menu-item,
html.is-loader-menu-open.is-loader-menu-closing .loader-slide-menu__language-menu>li,
html.is-loader-menu-open.is-loader-menu-closing .loader-slide-menu__icon-menu>li,
html.is-loader-menu-open.is-loader-menu-closing .loader-slide-menu__works-category-menu.is-open .loader-works-category-menu-item {
    animation: panelItemOut var(--close-ms, 60ms) cubic-bezier(.2, .7, .2, 1) forwards;
    animation-delay: 0ms !important;
}

@keyframes panelItemOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(50px);
    }
}

/* ===== レスポンシブ ===== */
@media screen and (max-width:1199px) and (min-width:749px) {
    /* 必要ならここにタブレット用調整 */
}

@media screen and (max-width:750px) {
    .loader-menu {
        top: 15px;
        right: 15px;
    }

    .loader-btn {
        width: 32px;
        height: 32px;
    }

    .loader-line_icon {
        top: 15px;
        left: 6px;
        width: 20px;
    }

    .loader-line_icon:before {
        top: -6px;
        width: 20px;
    }

    .loader-line_icon:after {
        top: 6px;
        width: 20px;
    }

    .loader-slide-menu-back {
        pointer-events: none;
        padding: 0 15px;
        min-height: 100vh;
        min-height: 100dvh;
        top: 0;
        right: -100%;
        transition: right .35s cubic-bezier(.2, .7, .2, 1);
    }

    /* 開いたときに表示（右端にぴったり） */
    html.is-loader-menu-open .loader-slide-menu-back {
        pointer-events: auto;
        right: 0;
    }

    .loader-slide-menu {
        margin: 92px 0 0 0;
        gap: 16px;
    }

    .loader-slide-menu-link {
        font-size: 14px;
    }

    .loader-slide-menu__works-category-menu {
        padding-left: 15px;
    }

    .loader-works-category-menu-item {
        margin-bottom: 2px;
    }

    .loader-works-category-menu-link {
        font-size: 12px;
    }

    .loader-slide-menu__language-menu {
        margin: 50px 0 0;
    }

    .loader-slide-menu__icon-menu {
        margin: 50px 0 0;
    }

    /* 三→×（SPサイズ調整） */
    .closebtn {
        background-color: transparent;
    }

    .closebtn:before {
        top: 0;
        background-color: #ffffff;
        transform: rotate(45deg);
        left: 0;
    }

    .closebtn:after {
        top: 0;
        background-color: #ffffff;
        transform: rotate(-45deg);
        left: 0;
    }
}