/* Theme system
   --hue-* を変えるだけで全体の配色が変わる
   JS の THEMES オブジェクトから動的に変更可 */
:root {
    /* --- テーマ Hue 値 (JSから setProperty で上書き可) --- */
    --hue-bg: 222; /* 背景のベース色相 */
    --hue-primary: 194; /* メインアクセント: 水色 */
    --hue-pink: 338; /* サブアクセント: ピンク */
    --hue-yellow: 50; /* アクセント3: 黄色 */
    --hue-lavender: 268; /* アクセント4: ラベンダー */
    --hue-mint: 162; /* アクセント5: ミント */

    /* 背景 / サーフェス (純白より少し外したオフホワイト) */
    --bg: hsl(var(--hue-bg), 25%, 97%);
    --bg-surface: hsl(var(--hue-bg), 20%, 94%);
    --bg-surface-2: hsl(var(--hue-bg), 18%, 90%);

    /* アクセントカラー (ライト背景向けに彩度・明度調整) */
    --primary: hsl(var(--hue-primary), 68%, 48%);
    --primary-muted: hsl(var(--hue-primary), 55%, 55%);
    --primary-glow: hsla(var(--hue-primary), 68%, 60%, 0.2);
    --primary-glass: hsla(var(--hue-primary), 68%, 60%, 0.1);

    --pink: hsl(var(--hue-pink), 60%, 58%);
    --pink-glow: hsla(var(--hue-pink), 60%, 65%, 0.2);
    --pink-glass: hsla(var(--hue-pink), 60%, 65%, 0.1);

    --yellow: hsl(var(--hue-yellow), 80%, 52%);
    --yellow-glow: hsla(var(--hue-yellow), 80%, 58%, 0.22);

    --lavender: hsl(var(--hue-lavender), 55%, 55%);
    --lavender-glow: hsla(var(--hue-lavender), 55%, 60%, 0.2);

    --mint: hsl(var(--hue-mint), 52%, 48%);
    --mint-glow: hsla(var(--hue-mint), 52%, 55%, 0.2);

    /* テキスト */
    --text: hsl(var(--hue-bg), 25%, 12%);
    --text-muted: hsl(var(--hue-bg), 15%, 42%);
    --text-faint: hsl(var(--hue-bg), 12%, 62%);

    /* グラス (ライト背景では暗めのオーバーレイ) */
    --glass-bg: hsla(var(--hue-bg), 20%, 20%, 0.04);
    --glass-border: hsla(var(--hue-bg), 20%, 20%, 0.1);
    --glass-border-h: hsla(var(--hue-primary), 60%, 50%, 0.4);

    --radius: 16px;
    --radius-sm: 8px;
    --radius-pill: 50px;
    --shadow: 0 8px 28px hsla(var(--hue-bg), 25%, 55%, 0.18);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    line-height: 1.75;
    min-height: 100vh;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

/* Noise texture overlay */
.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 300px 300px;
}

/* Layout */
.container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 28px;
}

.section {
    padding: 104px 0;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* グラデーションオーブ */
.hero-orb {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}
.hero-orb--primary {
    width: 560px;
    height: 560px;
    top: 5%;
    left: -12%;
    background: radial-gradient(
        circle,
        var(--primary-glow) 0%,
        transparent 68%
    );
    animation: orb-float 9s ease-in-out infinite;
}
.hero-orb--secondary {
    width: 400px;
    height: 400px;
    bottom: 8%;
    right: -6%;
    background: radial-gradient(circle, var(--pink-glow) 0%, transparent 68%);
    animation: orb-float 12s ease-in-out infinite reverse;
}

@keyframes orb-float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-36px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 18px;
    opacity: 0;
    animation: fade-up 0.8s 0.15s forwards;
}

.hero-name {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(2.8rem, 8vw, 5.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: linear-gradient(
        145deg,
        hsl(var(--hue-bg), 25%, 10%) 0%,
        var(--primary) 55%,
        var(--pink) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 18px;
    opacity: 0;
    animation: fade-up 0.8s 0.35s forwards;
}

.hero-tagline {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 480px;
    margin-bottom: 44px;
    opacity: 0;
    animation: fade-up 0.8s 0.55s forwards;
}

.hero-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fade-up 0.8s 0.75s forwards;
}

/* スクロールヒント */
.hero-scroll-hint {
    position: absolute;
    bottom: calc(
        20px + env(safe-area-inset-bottom, 0px)
    ); /* スマホの下部タブバーや安全領域を考慮 */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-faint);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 1;
    animation: fade-in 1s 1.5s forwards;
    transition: opacity 0.3s ease;
    pointer-events: auto;
}
.scroll-line {
    width: 3px;
    height: 30px;
    border-radius: 5px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
    0%,
    100% {
        opacity: 0.4;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(0.7);
    }
}

/* Social buttons */
.btn-social {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: 'Noto Sans JP', sans-serif;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-muted);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition);
    cursor: pointer;
}
.btn-social:hover {
    border-color: var(--glass-border-h);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 28px var(--primary-glow);
}
.btn-social svg {
    width: 17px;
    height: 17px;
    fill: currentColor;
    flex-shrink: 0;
}
.btn-social.btn-x:hover svg {
    fill: currentColor;
}

/* Section header */
.section-header {
    margin-bottom: 48px;
}

.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.7rem, 4vw, 2.4rem);
    font-weight: 700;
    position: relative;
    display: inline-block;
    margin-bottom: 16px;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 36px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--pink));
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 0.93rem;
    max-width: 560px;
    margin-top: 4px;
}

/* Intro section */
.intro-text {
    color: var(--text);
    font-size: 1rem;
    line-height: 1.7;
    /* max-width: 700px; */
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
    text-align: justify;
    /* word-break: keep-all; あると語の区切りはきれいだが間延びする箇所が出る */
}

/* Organizations */
.org-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.org-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 26px 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition);
}
.org-card::before {
    content: '';
    position: absolute;
    inset-block-start: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--pink));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.org-card:hover {
    border-color: var(--glass-border-h);
    transform: translateY(-5px);
    box-shadow:
        var(--shadow),
        0 0 0 1px var(--primary-glow);
}

.org-name {
    font-family: 'Noto Serif JP', serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 7px;
}
.org-role {
    font-size: 0.84rem;
    color: var(--primary);
    margin-bottom: 5px;
}
.org-period {
    font-size: 0.78rem;
    color: var(--text-faint);
    font-variant-numeric: tabular-nums;
}
.org-card-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

/* Filter bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.filter-btn {
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: 'Noto Sans JP', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.filter-btn:hover {
    border-color: var(--glass-border-h);
    color: var(--primary);
}
.filter-btn.active {
    background: var(--primary-glass);
    border-color: var(--primary);
    color: var(--primary);
}

/* Works grid */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.work-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition:
        var(--transition),
        opacity 0.25s ease;
    display: flex;
    flex-direction: column;
}
.work-card:hover {
    border-color: var(--glass-border-h);
    transform: translateY(-7px);
    box-shadow:
        var(--shadow),
        0 0 36px var(--primary-glow);
}

/* サムネイル (SHOW_THUMBNAILS = true の場合のみ挿入される) */
.work-thumbnail {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-surface-2);
}
.work-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.work-card:hover .work-thumbnail img {
    transform: scale(1.06);
}
.work-thumbnail-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(
        135deg,
        var(--bg-surface) 0%,
        var(--bg-surface-2) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--text-faint);
}

/* カード本文 */
.work-body {
    padding: 22px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.work-date {
    font-size: 0.72rem;
    color: var(--mint);
    margin-bottom: 9px;
    font-family: 'Noto Sans JP', sans-serif;
    letter-spacing: 0.06em;
}
.work-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.45;
}
.work-description {
    font-size: 0.84rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}
.work-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

/* タグ: data-color 属性で色変わる (0〜4)、ライト背景向けに暗めのテキスト */
.tag {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    letter-spacing: 0.03em;
    white-space: nowrap;
}
.tag[data-color='0'] {
    background: hsla(var(--hue-primary), 70%, 60%, 0.14);
    color: hsl(var(--hue-primary), 70%, 36%);
    border-color: hsla(var(--hue-primary), 70%, 55%, 0.35);
}
.tag[data-color='1'] {
    background: hsla(var(--hue-pink), 62%, 60%, 0.14);
    color: hsl(var(--hue-pink), 62%, 40%);
    border-color: hsla(var(--hue-pink), 62%, 58%, 0.35);
}
.tag[data-color='2'] {
    background: hsla(var(--hue-yellow), 80%, 58%, 0.16);
    color: hsl(var(--hue-yellow), 75%, 36%);
    border-color: hsla(var(--hue-yellow), 80%, 55%, 0.4);
}
.tag[data-color='3'] {
    background: hsla(var(--hue-lavender), 58%, 60%, 0.14);
    color: hsl(var(--hue-lavender), 58%, 38%);
    border-color: hsla(var(--hue-lavender), 58%, 58%, 0.35);
}
.tag[data-color='4'] {
    background: hsla(var(--hue-mint), 55%, 55%, 0.14);
    color: hsl(var(--hue-mint), 55%, 34%);
    border-color: hsla(var(--hue-mint), 55%, 50%, 0.35);
}

/* 作品リンク */
.work-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.work-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.77rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 5px 13px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    transition: var(--transition);
    font-family: 'Noto Sans JP', sans-serif;
}
.work-link:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.work-link svg {
    width: 13px;
    height: 13px;
    fill: currentColor;
    flex-shrink: 0;
}

/* 「詳しく見る」ボタン: アクセントカラーで強調 */
.work-link--detail {
    background: var(--primary-glass);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 500;
}
.work-link--detail:hover {
    background: var(--primary-glow);
    box-shadow: 0 4px 16px var(--primary-glow);
}

.work-card.hidden {
    display: none;
}

/* Footer */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 36px 0;
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-copy {
    font-size: 0.8rem;
    color: var(--text-faint);
}
.footer-links {
    display: flex;
    gap: 12px;
}
.footer-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-faint);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-link:hover {
    color: var(--primary);
}
.footer-link svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.is-open {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: hsla(var(--hue-bg), 25%, 10%, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    background: var(--bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px hsla(var(--hue-bg), 25%, 5%, 0.3);
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.modal.is-open .modal-container {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--glass-border);
}

.modal-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close:hover {
    color: var(--primary);
}

.modal-content {
    padding: 24px;
    flex: 1;
}

.modal-project-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-project {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px;
}

.modal-project-name {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
    font-family: 'Noto Serif JP', serif;
}

.modal-project-role {
    font-size: 0.85rem;
    color: var(--primary);
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
}

.modal-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40%;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
    background: var(--primary);
    color: #fff;
    transition: var(--transition);
}

.org-card .modal-btn,
.org-card .org-url-btn {
    width: auto;
    margin-top: 14px;
}

.modal-btn svg {
    width: 1em;
    height: 1em;
    /* fill: currentColor; */
    flex-shrink: 0;
}

.modal-btn:hover {
    background: var(--primary-muted);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--primary-glow);
}

/* Animations */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* スクロール駆動フェードイン */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.65s ease,
        transform 0.65s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 640px) {
    .section {
        padding: 72px 0;
    }
    .works-grid {
        grid-template-columns: 1fr;
    }
    .org-grid {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}