@import url('https://fonts.googleapis.com/css2?family=Bitter:wght@700&family=Lora:wght@400;500;600;700&display=swap');

body {
    font-family: 'Lora', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    background-color: var(--primary-bg);
}

/*
* common_styles.html
* 全ページで共通して使用される基本的なスタイルシート。
*/
:root {
    --primary-bg: #f0f8ff;
    --container-bg: #fff;
    --title-bg: #ffdce0;
    --title-border: #e35d76;
    --section-label-bg: #ffe9cc;
    --results-bg: #fff2e0;
    --button-bg: #1a73e8;
    --button-hover-bg: #1557b0;
    --button-active-bg: #174ea6;
    --danger-button-bg: #dc3545;
    --danger-button-hover-bg: #c82333;
    --clear-button-bg: #6c757d;
    --clear-button-hover-bg: #5a6268;
    --clear-input-btn-bg: #e9ecef;
    --clear-input-btn-hover-bg: #dde2e6;
    --input-border: #79a9f2;
    --input-bg: #f4faff;
    --text-color: #333;
    --placeholder-color: #aaa;
    --section-title-color: #1a73e8;
    --focus-ring-color: #1a73e8;

    /* 作曲家別テーマカラー */
    --color-rw: #e35d76; /* Wagner - Reddish */
    --color-gm: #1a73e8; /* Mahler - Blue */
    --color-rs: #ed6c02; /* Strauss - Orange */
    --color-dic: #2e7d32; /* Dictionary - Green */
    --color-other: #757575; /* Others - Grey */
}

* {
    box-sizing: border-box;
}

/* ナビゲーション・サイドバー */
.nav-toggle {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 2000;
    background: #333;
    color: white;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 220px;
    height: 100vh;
    background: #2c3e50;
    color: white;
    padding: 30px 20px;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease-in-out;
}

.sidebar h3 {
    font-size: 1.0rem;
    margin-top: 15px;
    margin-bottom: 15px;
    color: #ecf0f1;
    border-bottom: 1px solid #34495e;
    padding-bottom: 8px;
    text-align: left;
    background: none;
    border-radius: 0;
    font-family: 'Bitter', serif;
    font-weight: 700;
}

.sidebar h3.sidebar-home {
    border-bottom: 2px solid #3498db;
    margin-bottom: 20px;
    margin-top: 0 !important;
    font-size: 1.2rem !important;
}

.sidebar h3.sidebar-home a {
    color: #fff;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.sidebar h3.sidebar-home a:hover {
    color: #3498db;
}

.sidebar ul {
    list-style: none;
    margin-bottom: 25px;
    padding: 0;
    border: none;
    background: none;
}

.sidebar li {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.sidebar a {
    color: #ecf0f1;
    text-decoration: none;
    display: block;
    padding: 5px 0;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.sidebar a:hover {
    color: #3498db;
    text-decoration: none;
}

/* ページラッパー（サイドバーの分だけ右にずらす） */
.page-wrapper {
    margin-left: 220px;
    transition: margin-left 0.3s ease-in-out;
}

/* モバイル用 固定HOMEボタン (初期・PCでは非表示) */
.mobile-home-btn {
    display: none;
}

/* モバイル表示で常に左上固定表示するスタイル */
@media (max-width: 768px) {
    /* 固定ボタン（HOME・トップへ戻る）でアンカーリンク先の要素が隠れないように調整 */
    :target {
        scroll-margin-top: 65px;
    }

    .mobile-home-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        position: fixed;
        top: 15px;
        left: 15px;
        z-index: 1500;
        background-color: #2c3e50;
        color: #ecf0f1;
        padding: 5px 12px;
        border-radius: 5px;
        font-size: 0.85rem;
        font-weight: 500;
        text-decoration: none;
        box-shadow: 0 2px 5px rgba(0,0,0,0.3);
        transition: background-color 0.3s;
    }
    .mobile-home-btn:hover, .mobile-home-btn:active {
        background-color: #34495e;
        color: #fff;
    }
    
    /* トップへ戻るボタンをHOMEボタンと同じデザイン・高さ(右上)に統一 */
    #scrollToTop {
        top: 15px !important;
        right: 15px !important;
        bottom: auto !important;
        background-color: #2c3e50 !important;
        color: #ecf0f1 !important;
        padding: 5px 12px !important;
        border-radius: 5px !important;
        font-size: 0.85rem !important;
        font-weight: 500 !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.3) !important;
        border: none !important;
        line-height: normal !important;
    }
    
    #scrollToTop:hover, #scrollToTop:active {
        background-color: #34495e !important;
        color: #fff !important;
        transform: translateY(0) !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.3) !important;
    }
    
    .sidebar {
        display: none;
    }
    
    .page-wrapper {
        margin-left: 0;
    }

    .home-link {
        display: block; /* モバイルでは表示 */
    }
}

/* Homeページ専用：サイドバーを常に隠す */
.home-page .sidebar {
    display: none;
}
.home-page .page-wrapper {
    margin-left: 0;
}
.home-page .nav-toggle {
    display: none; 
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.5rem;
    }
}

h1 {
    text-align: center;
    margin: 30px auto 40px;
    color: var(--text-color);
    font-size: 2.0rem;
    position: relative;
    padding-bottom: 15px;
    font-family: 'Bitter', serif;
    font-weight: 700;
    letter-spacing: 0.05em;
    max-width: fit-content;
}

h1::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(to right, transparent, var(--button-bg), transparent);
}

/* ホームページのセクションカード */
.section-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #eee;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.section-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.section-card h2 {
    font-size: 1.4rem;
    color: var(--button-bg);
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 2px solid #f0f4f8;
    padding-bottom: 10px;
    font-family: 'Bitter', serif;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.section-card h2::before {
    content: "●";
    font-size: 0.8rem;
    margin-right: 10px;
    opacity: 0.7;
}

.section-card ul {
    border: none;
    background: none;
    padding-left: 20px; /* 左インデントを追加 */
    margin: 10px 0;
}

.section-card li {
    list-style: none;
    margin-bottom: 10px;
}

.section-card .note {
    background: #f8fafd;
    border-left: 4px solid var(--button-bg);
    padding: 15px;
    margin: 15px 0;
    border-radius: 0 8px 8px 0;
    font-size: 0.95rem;
}

/* カードバリエーション */
.card-rw h2 { color: var(--color-rw); border-bottom-color: rgba(227, 93, 118, 0.2); }
.card-rw h2::before { color: var(--color-rw); }
.card-rw .note { border-left-color: var(--color-rw); }

.card-gm h2 { color: var(--color-gm); border-bottom-color: rgba(26, 115, 232, 0.2); }
.card-gm h2::before { color: var(--color-gm); }
.card-gm .note { border-left-color: var(--color-gm); }

.card-rs h2 { color: var(--color-rs); border-bottom-color: rgba(237, 108, 2, 0.2); }
.card-rs h2::before { color: var(--color-rs); }
.card-rs .note { border-left-color: var(--color-rs); }

.card-dic h2 { color: var(--color-dic); border-bottom-color: rgba(46, 125, 50, 0.2); }
.card-dic h2::before { color: var(--color-dic); }
.card-dic .note { border-left-color: var(--color-dic); }

.card-other h2 {
    color: var(--color-other);
    border-bottom-color: rgba(117, 117, 117, 0.2);
    font-size: 1.1rem; /* 少し小さく設定 */
}

.card-other h2::before {
    color: var(--color-other);
}

/* サイドバーの「その他」ヘッダー用 */
.sidebar h3.sidebar-other {
    font-size: 0.85rem;
    margin-top: 20px;
    opacity: 0.8;
}

/* 楽譜情報バナー */
.score-info-banner {
    background-color: #e3f2fd;
    padding: 8px 12px;
    margin-bottom: 15px;
    border-radius: 5px;
    font-family: 'Lora', serif;
    font-size: 0.75rem; /* 小さく設定 */
    line-height: 1.4;
    color: #555;
    border-left: 3px solid #1a73e8;
}

/* Homeページ用グリッドレイアウト */
.home-page .container {
    max-width: 1000px;
    margin: 0 auto; /* センタリング */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    justify-content: center; /* 内部のカードも中央寄りに配置 */
    gap: 20px;
    padding: 40px 20px; /* 左右パディングを少し調整 */
}

.home-page h1 {
    grid-column: 1 / -1;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 30px 40px;
}

@media (max-width: 768px) {
    .container {
        padding: 20px 20px;
    }
}

/* セクションタイトルの強調 */
.section-title {
    font-size: 1.2em;
    font-weight: 600;
    padding: 0.5em;
    margin: 1.5em 0 1em;
    border-left: 4px solid var(--section-title-color);
    background: #f8f9fa;
    border-radius: 0 4px 4px 0;
}

.big-label {
    font-size: 1.2rem;
    margin: 1.5rem 0;
    padding: 8px;
    background-color: var(--section-label-bg);
    border-radius: 5px;
    font-weight: bold;
}

p,
ul {
    margin: 10px 0;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-color);
}

/* 用語集リンクのスタイル */
.glossary-link {
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
}

.glossary-link a {
    color: var(--button-bg);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.glossary-link a:hover {
    color: var(--button-hover-bg);
    border-bottom-color: var(--button-hover-bg);
}

ul {
    .result-de {
        font-weight: bold;
        font-size: 1.2em;
        line-height: 1.45;
        display: block;
        font-family: 'Lora', serif;
    }

    border: 1px solid #ccc;
    padding: 15px;
    border-radius: 10px;
    background-color: #fafafa;
}

fieldset {
    border: none;
    padding: 15px;
    border-radius: 10px;
    background-color: #f8fafd;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
    margin-bottom: 15px;
}

legend {
    display: none;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
}

/* 曲名リストを縦並びにするためのスタイル */
.radio-group#opera-selection {
    display: block;
}

.radio-group label {
    display: block;
    margin-bottom: 8px;
    font-family: Georgia, serif;
    font-size: 0.95rem;
    /* フォントサイズを少し小さく調整 */
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 5px 15px;
    font-family: Georgia, serif;
    font-size: 0.95rem;
}

.checkbox-group hr {
    grid-column: 1 / -1;
    width: 100%;
    border: 0;
    border-top: 1px solid #ccc;
    margin: 5px 0;
}

.checkbox-group label {
    display: block;
    margin-bottom: 5px;
    font-family: inherit;
}

input[type="radio"],
input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(0.9);
}

input[type="checkbox"]:checked+label,
input[type="radio"]:checked+label {
    color: var(--button-bg);
    font-weight: 500;
}

/* アコーディオンスタイル */
details.instrument-group {
    margin: 0.5em 0;
    border-radius: 4px;
}

details.instrument-group summary {
    padding: 0.4em 0.6em;
    font-size: 0.9em;
    cursor: pointer;
    background: #f8f9fa;
    border: 1px solid #eee;
    border-radius: 4px;
    transition: all 0.2s ease;
}

details.instrument-group summary:hover {
    background: #f0f2f5;
}

details.instrument-group[open] summary {
    background: #e8f0fe;
    border-color: #d2e3fc;
}

.accordion-content {
    display: none;
    margin-top: 10px;
}

input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    margin-bottom: 10px;
    font-size: 1rem;
    border: 2px solid var(--input-border);
    border-radius: 10px;
    background-color: var(--input-bg);
}

input::placeholder {
    color: var(--placeholder-color);
    opacity: 1;
}

.button-container {
    text-align: center;
    margin-top: 20px;
}

button {
    margin: 6px 4px;
    padding: 6px 12px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.08);
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0.1));
}

button:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
    transform: translateY(-1px);
    filter: brightness(1.05);
}

button:active {
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateY(1px);
    filter: brightness(0.95);
    background-image: linear-gradient(to top, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0.1));
}

button.btn-search,
button.btn-action {
    background-color: var(--button-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

button.btn-search:hover,
button.btn-action:hover {
    background-color: var(--button-hover-bg);
}

button.btn-search:active,
button.btn-action:active {
    background-color: var(--button-active-bg);
}

button.btn-danger {
    background-color: var(--danger-button-bg);
    border: 1px solid rgba(220, 53, 69, 0.2);
}

button.btn-danger:hover {
    background-color: var(--danger-button-hover-bg);
}

button.btn-clear {
    background-color: var(--clear-button-bg);
    border: 1px solid rgba(108, 117, 125, 0.2);
}

button.btn-clear:hover {
    background-color: var(--clear-button-hover-bg);
}

/* ボタンが無効化されたときのスタイル */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none !important;
    transform: none !important;
    filter: grayscale(20%) !important;
    background-image: none !important;
}

button.clear-input-btn {
    background-color: var(--clear-input-btn-bg);
}

button.clear-input-btn:hover {
    background-color: var(--clear-input-btn-hover-bg);
}

.loading,
.result-message {
    font-family: 'Lora', serif;
    font-size: 1.0em;
    font-weight: bold;
    text-align: center;
    padding: 20px;
}

#results {
    margin-top: 20px;
    background-color: var(--results-bg);
    padding: 10px;
    border-radius: 5px;
    min-height: 150px;
    line-height: 1.5;
    white-space: normal;
    font-family: 'Lora', serif;
    font-size: 0.92em;
}

#results>div:first-child {
    margin-bottom: 15px;
}

.scene-title {
    font-size: 1.2em;
    font-weight: bold;
    padding-bottom: 4px;
    border-bottom: 2px solid #ccc;
    margin-top: 1.2em;
    margin-bottom: 10px;
}

.result-entry {
    display: flex;
    align-items: baseline;
    margin-bottom: 0.6em;
    font-size: 0.92em;
}

.result-page {
    flex: 0 0 4em;
    font-weight: normal;
    color: #555;
    white-space: nowrap;
    font-size: 0.75rem;
}

.result-content {
    flex: 1;
}

.result-de {
    font-weight: bold;
    font-size: 1.0rem;
    line-height: 1.45;
    display: block;
    font-family: 'Lora', serif;
}

.result-ja-loc {
    display: block;
    font-size: 0.85rem;
    color: #333;
}

#scrollToTop {
    position: fixed;
    right: 20px;
    top: 30px;  /* ヘッダー直下に配置 */
    bottom: auto;
    background-color: rgba(26, 115, 232, 0.95);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 500;
    z-index: 9999;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: transform 0.18s ease, opacity 0.18s ease;
    touch-action: manipulation;
}

/* helper classes: JS may toggle display or add the .show class */
#scrollToTop.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

#scrollToTop.hidden {
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
}

#scrollToTop:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
}

#scrollToTop:active {
    transform: translateY(1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Alphabet floating bar (for list/notes pages) - Right Vertical Layout */
#alpha-floating-bar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    bottom: auto;
    left: auto;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 12px 6px;
    /* justify-content: center; removed */
    min-height: 50vh;
    background: rgba(248, 249, 250, 0.9);
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.15);
    overflow-y: auto;
    max-height: 90vh;
    -webkit-overflow-scrolling: touch;
    width: auto;
    min-width: 30px;
    align-items: center;
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
    transition: none; /* No transition needed for static position */
}

#alpha-floating-bar a {
    display: inline-block;
    padding: 5px 0;
    border-radius: 4px;
    background: rgba(240, 240, 240, 0.9);
    color: var(--button-bg);
    text-decoration: none;
    font-weight: 600;
    margin-right: 0;
    margin-bottom: 2px;
    font-size: 0.85rem;
    text-align: center;
    width: 32px;
}

#alpha-floating-bar a:active {
    transform: translateY(0);
}

/* Search Results Styling */
#results {
    min-height: 200px;
    margin-bottom: 100px;
    font-family: 'Lora', serif;
}

h2 {
    color: var(--color-gm);
    border-bottom: 2px solid var(--color-gm);
    padding-bottom: 5px;
    margin-top: 40px;
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-family: 'Bitter', serif;
    font-weight: 700;
}

h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #444;
    font-size: 1.2rem;
    font-family: 'Bitter', serif;
    font-weight: 700;
}

.result-entry {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.result-a {
    font-weight: bold;
    color: #000;
    margin-top: 0;
    font-size: 1.0rem;
}

.result-c {
    margin-left: 15px;
    color: #333;
    font-size: 0.85rem;
}

.result-loc {
    margin-left: 30px;
    font-size: 0.75rem;
    color: #666;
}
/* Search Result Item Styling - Similar to dic.html .row */
.search-result-item {
    border-bottom: 1px solid #ccc;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.search-result-item:last-child {
    border-bottom: none;
}

/* Dictionary Term Link Styling */
.term-link {
    color: #0066cc;
    text-decoration: none;
    border-bottom: 1px dotted #0066cc;
    transition: all 0.2s ease;
}

.term-link:hover {
    color: #0044aa;
    border-bottom-color: #0044aa;
}


/* =============================================
   セマンティックHTMLタグのリセット（SEO強化用）
   dt, dd, dfn をスタイル的に div/span と同等に扱い、
   見た目を変えずに意味論的マークアップのメリットを享受する
   ============================================= */
dt, dd {
    margin: 0;
    padding: 0;
}
dfn {
    font-style: normal; /* ブラウザデフォルトの斜体を解除 */
}