/* ============ CSS RESET (modern) ============ */
    *,
    *::before,
    *::after {
        box-sizing: border-box
    }

    html,
    body {
        height: 100%
    }

    body {
        margin: 0;
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
        color: var(--text);
        background: var(--bg)
    }

    img,
    svg,
    video,
    canvas {
        display: block;
        max-width: 100%
    }

    input,
    button,
    textarea,
    select {
        font: inherit
    }

    /* ============ THEME ============ */
    :root {
        --bg: #fff;
        /* page background */
        --panel: #fff;
        /* card background */
        --panel-2: #fff;
        /* alt card */
        --text: #1b1b1b;
        /* base text */
        --muted: #6c6a6a;
        /* muted text */
        --brand: #4ee1a0;
        /* accent */
        --brand-2: #7aa9ff;
        /* secondary accent */
        --line: rgba(255, 255, 255, .08);
        --shadow: 0 5px 5px rgba(0, 0, 0, .25);
        --radius: 18px;
        --max: 1200px;
    }

    @media (prefers-color-scheme: light) {
        :root {
            --bg: #fff;
        }
    }

    /* ============ GLOBAL ============ */
    body {
        font-family: Poppins, "Noto Sans JP", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu;
    }

    a {
        color: inherit;
        text-decoration: none
    }

    .container {
        width: min(100%, var(--max));
        padding-inline: 24px;
        margin-inline: auto
    }

    .section {
        padding: 72px 0
    }

    .kicker {
        letter-spacing: .2em;
        text-transform: uppercase;
        color: var(--muted);
        font-size: .8rem
    }

    .title {
        font-size: clamp(28px, 4vw, 44px);
        line-height: 1.15;
        margin: .35em 0 .2em
    }

    .sub {
        color: var(--muted)
    }

    .card {
        background: var(--panel);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow)
    }

    .grid {
        display: grid;
        gap: 20px
    }

    .--bg-black {
        background-color: #1a1a1a;
    }

    .-white {
        color: #fff;
    }


    /* ============ HEADER ============ */
    .skip {
        position: absolute;
        left: -999px;
        top: auto;
        width: 1px;
        height: 1px;
        overflow: hidden
    }

    .skip:focus {
        left: 16px;
        top: 16px;
        width: auto;
        height: auto;
        padding: 10px 14px;
        background: #000;
        border-radius: 10px;
        color: #000;
        z-index: 9999
    }

    header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(11, 11, 12, 1);
        backdrop-filter: saturate(160%) blur(8px);
        border-bottom: 1px solid var(--line)
    }

    .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 64px
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 12px;
        font-weight: 700
    }

    .brand .logo {
        width: auto;
        height: 40px;
        /* border-radius: 8px; */
        /* background: linear-gradient(135deg, var(--brand), var(--brand-2)); */
        /* box-shadow: 0 6px 16px rgba(78, 225, 160, .4) */
    }

    .brand span {
        letter-spacing: .06em
    }

    #nav-toggle {
        display: none
    }

    .menu {
        display: flex;
        gap: 20px;
        align-items: center
    }

    .menu a {
        padding: 8px 12px;
        border-radius: 12px;
        color: #e3e4e8;
    }

    .menu a:hover,
    .menu a:focus {
        background: var(--panel-2);
        color: #000
    }

    .cta {
        padding: 10px 16px;
        border-radius: 14px;
        background: linear-gradient(135deg, var(--brand), var(--brand-2));
        color: #051a10;
        font-weight: 700
    }

    /* Mobile menu (CSS only) */
    .hamburger {
        display: none;
        cursor: pointer
    }

    .hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: #000;
        margin: 6px 0;
        border-radius: 2px
    }

    @media (max-width:840px) {
        .hamburger {
            display: block
        }

        .menu {
            position: fixed;
            inset: 64px 0 auto 0;
            display: grid;
            gap: 10px;
            padding: 16px;
            background: rgba(9, 10, 12, .95);
            border-bottom: 1px solid var(--line);
            transform: translateY(-120%);
            transition: transform .3s ease
        }

        #nav-toggle:checked~.menu {
            transform: translateY(0)
        }

        .cta {
            justify-self: start
        }
    }

    /* ============ HERO ============ */
    /* ===== Hero本体 ===== */
    .hero {
        position: relative;
        min-height: 72dvh;
        /* 画面高の7割強を目安 */
        display: grid;
        place-items: center;
        border-bottom: 1px solid var(--line);
        overflow: hidden;
        background: var(--bg);
        width: 100%;
        margin: auto;
        /* background: url(/img/teechi_bg.jpg) no-repeat center center / contain; */
    }

    /* 青系の柔らかい発光グラデ（写真の上にうっすら） */
    .hero::before {
        content: "";
        position: absolute;
        inset: -10% -10% 0;

        /* background:
            radial-gradient(1200px 600px at 20% 0%, rgba(37, 99, 235, .16), transparent 60%),
            radial-gradient(900px 500px at 80% 10%, rgba(96, 165, 250, .16), transparent 60%); */
        z-index: 1;
    }

    /* アーティスト写真（全画面カバー） */
    .hero::after {
        content: "";
        position: absolute;
        inset: 0;
        /* background: url(/img/teechi_bg.jpg) no-repeat center center / contain; */
        filter: grayscale(8%);
        /* ほんの少し落ち着かせる。不要なら削除 */
        z-index: 0;
    }

    /* Hero内のテキストボックス（読ませるための半透明＋軽いブラー） */
    .hero .wrap {
        position: relative;
        z-index: 2;
        display: grid;
        gap: 18px;
        text-align: center;
        background: rgba(255, 255, 255, .62);
        backdrop-filter: saturate(140%) blur(6px);
        padding: 24px;
        border-radius: 16px;
    }

    /* 付帯要素の最小スタイル（必要分だけ） */
    .container {
        width: min(100%, 1200px);
        padding-inline: 24px;
        margin-inline: auto
    }

    .kicker {
        letter-spacing: .2em;
        text-transform: uppercase;
        color: var(--muted);
        font-size: .8rem;
        margin: 0
    }

    /* .hero h1{font-size:clamp(40px,8vw,84px);line-height:1.02;margin:0;font-weight:800;color:var(--text)} */
    .hero-lead {
        color: var(--muted);
        margin: 0 auto;
        max-width: 680px
    }

    .btns {
        display: flex;
        gap: 12px;
        justify-content: center;
        flex-wrap: wrap;
        margin-top: 10px
    }

    .btn {
        padding: 12px 18px;
        border-radius: 14px;
        border: 1px solid var(--line);
        background: #f6f8fb;
        color: #111;
        text-decoration: none
    }

    .btn.primary {
        background: linear-gradient(135deg, var(--brand), var(--brand-2));
        color: #fff;
        border: none;
        font-weight: 700
    }

    /* ============ NEWS ============ */
    .news-list {
        display: grid;
        gap: 14px;
        margin-top: 22px
    }

    .news-item {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 14px;
        padding: 14px 16px;
        border: 1px solid var(--line);
        border-radius: 14px;
        background: var(--panel)
    }

    .news-item time {
        color: var(--muted);
        font-feature-settings: "palt" on
    }

    .news-item a {
        font-weight: 600
    }

    /* ============ LIVE ============ */
    .live-grid {
        grid-template-columns: repeat(12, 1fr)
    }

    .live-card {
        grid-column: span 12;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 16px;
        padding: 18px;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: var(--panel)
    }

    .live-meta {
        color: var(--muted);
        font-size: .95rem
    }

    .live-cta .btn {
        white-space: nowrap
    }

    @media (min-width:760px) {
        .live-card {
            grid-column: span 6
        }
    }

    /* ============ MEDIA (Audio/Video) ============ */
    .media-grid {
        grid-template-columns: repeat(12, 1fr)
    }

    .embed {
        grid-column: span 12;
        aspect-ratio: 16/9;
        background: linear-gradient(135deg, #20222a, #12131a);
        border-radius: 16px;
        border: 1px solid var(--line);
        overflow: hidden
    }

    .embed iframe {
        width: 100%;
        height: 100%;
        border: 0
    }

    @media (min-width:900px) {
        .embed {
            grid-column: span 6
        }
    }

    /* ============ DISCOGRAPHY ============ */
    .disc-grid {
        grid-template-columns: repeat(12, 1fr)
    }

    .disc {
        grid-column: span 12;
        display: grid;
        grid-template-columns: 118px 1fr;
        gap: 14px;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: var(--panel)
    }

    .art {
        width: 118px;
        height: 118px;
        border-radius: 10px;
        background: linear-gradient(135deg, #262a33, #151821);
        display: grid;
        place-items: center;
        color: #778
    }

    .disc h4 {
        margin: 0
    }

    .tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap
    }

    .tag {
        padding: 4px 8px;
        border: 1px solid var(--line);
        border-radius: 999px;
        color: var(--muted);
        font-size: .85rem
    }

    @media (min-width:720px) {
        .disc {
            grid-column: span 6
        }
    }

    /* ============ MEMBERS ============ */
    .members {
        grid-template-columns: repeat(12, 1fr)
    }

    .member {
        grid-column: span 12;
        display: grid;
        grid-template-columns: 160px 1fr;
        gap: 16px;
        padding: 16px;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: var(--panel)
    }

    .avatar {
        width: 160px;
        height: auto;
        border-radius: 14px;
        background: #1b1d25
    }

    .avatar img {
        width: 100%;
        border-radius: 14px;
    }

    @media (min-width:860px) {
        .member {
            grid-column: span 6
        }
    }

    /* ============ GALLERY ============ */
    .masonry {
        column-count: 1;
        column-gap: 12px
    }

    .masonry .ph {
        break-inside: avoid;
        border-radius: 12px;
        background: #1b1d25;
        margin: 0 0 12px;
        height: 220px
    }

    @media (min-width:680px) {
        .masonry {
            column-count: 2
        }
    }

    @media (min-width:1024px) {
        .masonry {
            column-count: 3
        }
    }

    /* ============ CONTACT ============ */
    form {
        display: grid;
        gap: 12px
    }

    input,
    textarea {
        padding: 12px 14px;
        border-radius: 12px;
        background: #0e0f13;
        border: 1px solid var(--line);
        color: #000
    }

    textarea {
        min-height: 140px;
        resize: vertical
    }

    .form-help {
        color: var(--muted);
        font-size: .9rem
    }

    /* ============ FOOTER ============ */
    footer {
        border-top: 1px solid var(--line);
        padding: 36px 0 64px;
        color: var(--muted)
    }

    .socials {
        display: flex;
        gap: 14px;
        flex-wrap: wrap
    }

    .socials a {
        padding: 10px 12px;
        border: 1px solid var(--line);
        border-radius: 12px
    }

    /* Motion safety */
    @media (prefers-reduced-motion: reduce) {

        *,
        *::before,
        *::after {
            animation-duration: 0.001ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.001ms !important;
            scroll-behavior: auto !important
        }
    }


    /* ===== 歌詞ページ専用の微追加（style.cssの下に置く） ===== */

    /* ページ用ヒーロー（写真なしのシンプル版） */
    .hero--lyrics {
        position: relative;
        min-height: 40dvh;
        display: grid;
        place-items: center;
        border-bottom: 1px solid var(--line);
        background: linear-gradient(135deg, #f7f9ff, #ffffff);
    }

    .hero--lyrics .wrap {
        text-align: center;
        padding: 24px;
        border-radius: 16px;
    }

    .hero--lyrics h1 {
        line-height: 1.05;
        margin: .1em 0;
        font-weight: 800;
        color: #111217;
        font-size: 3rem;
    }

    .hero--lyrics p {
        color: var(--muted);
        margin: 0;
    }

    /* 目次（アンカー） */
    .toc {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 16px;
        justify-content: center;
    }

    .toc a {
        padding: 8px 12px;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: #a9bede;
        font-size: .95rem;
    }

    /* 歌詞一覧 */
    .lyrics-list {
        display: grid;
        gap: 20px;
    }

    .lyric {
        border: 1px solid var(--line);
        border-radius: 16px;
        background: var(--panel);
        overflow: hidden;
    }

    .lyric header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 16px 18px;
        border-bottom: 1px solid var(--line);
        background: var(--panel-2);
        z-index: 999;
    }

    .lyric .meta {
        color: var(--muted);
        font-size: .95rem;
    }

    .lyric .links {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .pill {
        padding: 6px 10px;
        border: 1px solid var(--line);
        border-radius: 999px;
        font-size: .9rem;
        background: #f6f8fb;
    }

    .listen {
        background-color: rgb(0, 128, 183);
        color: #fff;
    }

    .youtube {
        background-color: rgb(183, 0, 37);
        color: #fff;
    }



    /* details/summaryで開閉（CSSだけでアコーディオン） */
    details.lyric-block {
        border-top: 1px solid var(--line);
    }

    details.lyric-block>summary {
        color: #7ab0dc;
    }

    details.lyric-block>summary {
        cursor: pointer;
        list-style: none;
        padding: 14px 18px;
        font-weight: 600;
        outline: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    details.lyric-block>summary::-webkit-details-marker {
        display: none;
    }

    .caret {
        transition: transform .2s ease;
    }

    details[open] .caret {
        transform: rotate(180deg);
    }

    .lyric-body {
        padding: 0 18px 18px;
    }

    .verse {
        white-space: pre-wrap;
        line-height: 1.9;
        margin: 14px 0;
        color: var(--text);
    }

    .title {
        font-size: 1.7rem;
    }

    /* 曲内メタ */
    .credits {
        color: var(--muted);
        font-size: .9rem;
        margin-top: 4px;
    }

    /* スクロールトップ */
    .backtop {
        display: inline-block;
        margin-top: 12px;
        font-size: .95rem;
        padding: 8px 12px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: #f6f8fb;
    }

    /* アクティブタブ風（ナビのLyricsを少し強調） */
    nav.menu a[aria-current="page"] {
        color: #111;
        background: #e9f1ff;
        border: 1px solid rgba(37, 99, 235, .25);
    }

    /* 小さめ画面での余白 */
    @media (max-width:640px) {
        .lyric header {
            flex-direction: column;
            align-items: flex-start;
        }
    }