/* ==========================================================
   単語アプリ系 (単語帳 / 単語クイズ / クイズ結果 / マイ単語) の画面固有スタイル
   共通部品は study_app.css。ここは学習アプリ枠 (body.study-app) の中だけで使う
   ========================================================== */

/* ---------- コース色 (ベトタン BASIC / INTERMEDIATE / ADVANCED / マイ単語) ---------- */
.vw-c0 { --vw-c: #376439; --vw-c-dark: #264a28; --vw-c-soft: #eaf3ea; }
.vw-c1 { --vw-c: #f29c38; --vw-c-dark: #d27f1f; --vw-c-soft: #fdf1e2; }
.vw-c2 { --vw-c: #9c2742; --vw-c-dark: #761c31; --vw-c-soft: #f8e7eb; }
.vw-cm { --vw-c: #9c2742; --vw-c-dark: #761c31; --vw-c-soft: #f8e7eb; }

/* ---------- ユニット見出し (セクションのバナー) ---------- */
.vw-unit {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-radius: var(--sa-radius);
    background: var(--vw-c);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
    color: #fff;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.vw-unit-text { flex: 1; min-width: 200px; }
.vw-unit-course { font-size: 13px; font-weight: 900; letter-spacing: .08em; opacity: .9; text-transform: uppercase; }
.vw-unit-title { font-size: 24px; font-weight: 900; margin-top: 2px; }
.vw-unit-note { font-size: 12px; margin-top: 6px; opacity: .9; }
.vw-unit-note a { color: #fff; text-decoration: underline !important; }
.vw-unit-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.vw-unit-actions .sa-btn { white-space: nowrap; padding: 0 16px; }
.vw-unit .sa-btn.is-white {
    background: #fff;
    color: var(--vw-c-dark);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
}
.vw-unit .sa-btn.is-white:active { box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
.vw-unit .sa-btn.is-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, .7);
    box-shadow: none;
}
.vw-unit .sa-btn.is-outline:active { transform: none; }

/* ---------- ツールバー (説明 + 北部/南部) ---------- */
.vw-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}
.vw-tips { font-size: 13px; color: var(--sa-muted); line-height: 1.7; }
.vw-tips .material-symbols-outlined { font-size: 16px; vertical-align: -3px; margin-right: 2px; }
.vw-source {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px 4px 12px;
    border: 2px solid var(--sa-line);
    border-radius: 12px;
    color: var(--sa-muted);
    font-size: 13px;
    font-weight: 800;
}
.vw-source .material-symbols-outlined { font-size: 20px; }
body.study-app .vw-source select {
    height: 32px;
    border: 0;
    background: transparent;
    font-family: inherit;
    font-size: 14px;
    font-weight: 800;
    color: var(--sa-text);
    cursor: pointer;
    /* style.css の .option-source (スピーカー背景画像+左余白38px) を打ち消す。アイコンは左の record_voice_over で出している */
    width: auto;
    min-width: 0;
    margin: 0;
    padding: 0 2px;
    background-image: none;
}

/* ---------- 単語カード ---------- */
.vw-list { display: grid; gap: 12px; }
.vw-card {
    border: 2px solid var(--sa-line);
    border-radius: var(--sa-radius);
    background: #fff;
    overflow: hidden;
}
.vw-card-row { display: flex; align-items: center; gap: 12px; padding: 14px 16px; }
.vw-card-main { flex: 1; min-width: 0; cursor: pointer; }
.vw-word { font-size: 20px; font-weight: 900; line-height: 1.3; word-break: break-word; }
.vw-word a { color: var(--sa-text); }
.vw-word a:hover { color: var(--vw-c-dark, var(--sa-blue-dark)); }
.vw-mean { margin-top: 6px; font-size: 15px; line-height: 1.6; color: var(--sa-text); }
.vw-mean-item { display: inline-flex; align-items: baseline; gap: 6px; margin-right: 12px; }
.vw-pos {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 22px;
    padding: 0 6px;
    border-radius: 7px;
    background: var(--vw-c-soft, var(--sa-soft));
    color: var(--vw-c-dark, var(--sa-muted));
    font-size: 12px;
    font-weight: 900;
    flex-shrink: 0;
}
.vw-remark { display: block; margin-top: 2px; font-size: 13px; color: var(--sa-muted); }
.vw-more {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-top: 6px;
    font-size: 12px;
    font-weight: 800;
    color: var(--sa-blue-dark);
}
.vw-more .material-symbols-outlined { font-size: 18px; transition: transform .2s; }
.vw-card.is-open .vw-more .material-symbols-outlined { transform: rotate(180deg); }
.vw-card-side { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.vw-example {
    display: none;
    padding: 12px 16px 14px;
    background: var(--sa-soft);
    border-top: 2px solid var(--sa-line);
    font-size: 15px;
    line-height: 1.7;
}
.vw-card.is-open .vw-example { display: block; }
.vw-example-vi { font-weight: 800; }
.vw-example-none { color: #afafaf; }

/* 音声ボタン (.audioPlay > audio + .audio_btn の構造は main.js が前提にしているので変えない) */
body.study-app .vw-audio .audio_btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--sa-blue);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
body.study-app .vw-audio .audio_btn:active { transform: translateY(4px); box-shadow: none; }
body.study-app .vw-audio .audio_btn img { display: none; }
body.study-app .vw-audio .audio_btn::before {
    content: 'volume_up';
    font-family: 'Material Symbols Outlined';
    font-size: 26px;
    color: #fff;
    font-variation-settings: 'FILL' 1;
    -webkit-font-feature-settings: 'liga';
    font-feature-settings: 'liga';
}
.vw-audio-empty { width: 44px; }

/* マイ単語トグル (input.tango_register + label は my_tango.js が前提。見た目だけ変える) */
.vw-bookmark { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.vw-bookmark-label { font-size: 10px; font-weight: 900; color: #afafaf; letter-spacing: .04em; }
body.study-app .toggle input[type=checkbox] { position: absolute; opacity: 0; width: 0; height: 0; }
body.study-app .toggle label {
    display: block;
    width: 48px;
    height: 28px;
    margin: 0;
    background: var(--sa-line);
    border-radius: 999px;
}
body.study-app .toggle label:after { top: 4px; left: 4px; width: 20px; height: 20px; box-shadow: 0 1px 2px rgba(0, 0, 0, .2); }
body.study-app .toggle input:checked + label { background: var(--sa-green-light); }
body.study-app .toggle input:checked + label:after { left: calc(100% - 4px); }

/* ---------- 一覧下のアクション ---------- */
.vw-actions { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.vw-actions .sa-btn { flex: 1; min-width: 200px; }

/* ---------- マイ単語登録のポップアップ (my_tango.js が .popup / #msg / #close を使う) ---------- */
body.study-app .popup { z-index: 9998; }
body.study-app .contentPopup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(420px, calc(100% - 32px));
    padding: 24px;
    border-radius: 20px;
    text-align: center;
    font-family: var(--sa-font);
}
body.study-app .contentPopup #msg { font-size: 16px; font-weight: 700; color: var(--sa-text); margin: 0 0 18px; white-space: pre-wrap; }
body.study-app .contentPopup #close,
body.study-app .contentPopup #detach {
    min-width: 140px;
    min-height: 44px;
    padding: 0 20px;
    border: 0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 800;
    color: #fff;
    background: var(--sa-blue);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
    cursor: pointer;
}
body.study-app .contentPopup #close { background: #fff; color: var(--sa-blue); border: 2px solid var(--sa-line); box-shadow: 0 2px 6px rgba(0, 0, 0, .12); }

/* ---------- 単語クイズ (js/my_tango.js の quizNew が #text_q / #text_sN に描画) ---------- */
.vq-body { max-width: 640px; margin: 24px auto 0; }
.vq-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
.vq-course { font-size: 13px; font-weight: 900; color: var(--vw-c-dark); letter-spacing: .06em; text-transform: uppercase; }
.vq-title { font-size: 24px; font-weight: 900; margin: 0 0 18px; }
body.study-app .vq-body .vocabulary-frame {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 140px;
    margin-bottom: 24px;
    padding: 20px;
    border: 2px solid var(--sa-line);
    border-radius: 20px;
    background: #fff;
}
body.study-app .vq-body #text_q {
    padding: 0;
    gap: 14px;
    font-size: 30px;
    font-weight: 900;
    color: var(--sa-text);
    flex-wrap: wrap;
    text-align: center;
}
body.study-app .vq-body .audio_btn_quiz {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--sa-blue);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
body.study-app .vq-body .audio_btn_quiz:active { transform: translateY(4px); box-shadow: none; }
body.study-app .vq-body .audio_btn_quiz img { display: none; }
body.study-app .vq-body .audio_btn_quiz::before {
    content: 'volume_up';
    font-family: 'Material Symbols Outlined';
    font-size: 28px;
    color: #fff;
    font-variation-settings: 'FILL' 1;
    -webkit-font-feature-settings: 'liga';
    font-feature-settings: 'liga';
}
body.study-app .vq-body .btn-layout {
    display: block;
    width: 100%;
    min-height: 58px;
    margin: 0 0 12px;
    padding: 12px 16px;
    border: 2px solid var(--sa-line);
    border-radius: 14px;
    background: #fff;
    color: var(--sa-text);
    font-family: var(--sa-font);
    font-size: 17px;
    font-weight: 700;
    text-align: left;
    white-space: normal;
    transition: background .1s, border-color .1s;
    -webkit-tap-highlight-color: transparent;
}
body.study-app .vq-body .btn-layout:hover { background: var(--sa-soft); }
body.study-app .vq-body .btn-layout.is-correct { background: var(--sa-ok-bg); border-color: #9cc59e; color: var(--sa-green-dark); }
body.study-app .vq-body .btn-layout.is-wrong { background: var(--sa-ng-bg); border-color: #efb8b5; color: var(--sa-red-dark); }
body.study-app .vq-body .btn-layout[disabled] { cursor: default; }
body.study-app .vq-body #text_a,
body.study-app .vq-body #text_b { display: none; }
.vq-count { font-size: 14px; font-weight: 900; color: #afafaf; flex-shrink: 0; }

/* ---------- クイズ結果 ---------- */
.vr-hero {
    text-align: center;
    padding: 28px 20px 24px;
    border: 2px solid var(--sa-line);
    border-radius: 20px;
    margin-bottom: 20px;
}
.vr-hero.is-pass { background: #f2f7f2; border-color: #9cc59e; }
.vr-hero.is-fail { background: #fff4f4; border-color: #f3c9c7; }
.vr-badge {
    width: 96px;
    height: 96px;
    margin: 0 auto 14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}
.vr-badge .material-symbols-outlined { font-size: 56px; font-variation-settings: 'FILL' 1; }
.vr-hero.is-pass .vr-badge { background: var(--sa-yellow); box-shadow: 0 2px 6px rgba(0, 0, 0, .12); }
.vr-hero.is-fail .vr-badge { background: var(--sa-blue); box-shadow: 0 2px 6px rgba(0, 0, 0, .12); }
.vr-msg { font-size: 18px; font-weight: 900; margin: 0 0 16px; }
.vr-stats { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.vr-stat { min-width: 140px; border: 2px solid var(--sa-yellow); border-radius: 16px; overflow: hidden; background: #fff; }
.vr-stat-label { background: var(--sa-yellow); color: #fff; font-size: 12px; font-weight: 900; padding: 5px 0; letter-spacing: .08em; }
.vr-stat-value { font-size: 22px; font-weight: 900; padding: 12px 8px; color: #a3772c; }
.vr-stat.is-green { border-color: var(--sa-green); }
.vr-stat.is-green .vr-stat-label { background: var(--sa-green); }
.vr-stat.is-green .vr-stat-value { color: var(--sa-green-dark); }
.vr-mark {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
}
.vr-mark .material-symbols-outlined { font-size: 24px; font-weight: 700; }
.vr-mark.is-ok { background: var(--sa-green); }
.vr-mark.is-ng { background: var(--sa-red); }
.vr-no { font-size: 13px; font-weight: 900; color: #afafaf; width: 22px; text-align: center; flex-shrink: 0; }
.vr-answer { font-size: 14px; color: var(--sa-muted); margin-top: 2px; }

/* ---------- マイ単語 ---------- */
.vm-empty { text-align: center; padding: 40px 16px; color: var(--sa-muted); }
.vm-empty .material-symbols-outlined { font-size: 56px; color: var(--sa-purple); }
.vm-menu { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-bottom: 24px; }
.vm-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 2px solid var(--sa-line);
    border-radius: var(--sa-radius);
    background: #fff;
    color: var(--sa-text);
    font-weight: 800;
    font-size: 15px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    width: 100%;
}
.vm-menu-item:hover { background: var(--sa-soft); color: var(--sa-text); }
.vm-menu-item .vm-menu-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.vm-menu-item .vm-menu-icon .material-symbols-outlined { font-size: 24px; }
.vm-menu-item small { display: block; font-size: 12px; font-weight: 700; color: var(--sa-muted); margin-top: 2px; }
.vm-bg-green { background: var(--sa-green); }
.vm-bg-blue { background: var(--sa-blue); }
.vm-bg-orange { background: var(--sa-orange); }
.vm-bg-purple { background: var(--sa-purple); }
.vm-bg-red { background: var(--sa-red); }
.vm-note { font-size: 14px; line-height: 1.8; color: var(--sa-muted); }
.vm-note a { color: var(--sa-blue-dark); font-weight: 800; }

@media (max-width: 700px) {
    .vw-unit { padding: 16px; }
    .vw-unit-title { font-size: 20px; }
    .vw-unit-actions { width: 100%; }
    .vw-unit-actions .sa-btn { flex: 1; }
    .vw-card-row { padding: 12px 14px; gap: 10px; }
    .vw-word { font-size: 18px; }
    .vw-mean { font-size: 14px; }
    .vw-actions .sa-btn { min-width: 0; flex: 1 1 100%; }
    body.study-app .vq-body #text_q { font-size: 26px; }
    .vq-title { font-size: 20px; }
    .vm-menu { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- ページ送り (common/pagination.php の Bootstrap 形式を学習アプリ風に) ---------- */
body.study-app .user-pagination { display: flex; justify-content: center; margin-top: 24px; }
body.study-app .user-pagination .pagination { display: flex; gap: 6px; margin: 0; padding: 0; list-style: none; }
body.study-app .user-pagination .pagination > li > a,
body.study-app .user-pagination .pagination > li > span {
    float: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    margin: 0;
    border: 2px solid var(--sa-line);
    border-radius: 12px !important;
    background: #fff;
    color: var(--sa-muted);
    font-weight: 800;
}
body.study-app .user-pagination .pagination > .active > a,
body.study-app .user-pagination .pagination > .active > span,
body.study-app .user-pagination .pagination > .active > a:hover {
    background: #e8f5fa !important;
    border-color: #9fd3e7 !important;
    color: var(--sa-blue-dark) !important;
}
body.study-app .user-pagination .pagination > .disabled > a { opacity: .45; pointer-events: none; }

/* 結果カード: 色付きの見出し帯はやめ、落ち着いたカードにする (2026-09-27 デザイン調整) */
.vr-stat, .vr-stat.is-green { border: 2px solid var(--sa-line); background: #fafbfa; }
.vr-stat .vr-stat-label, .vr-stat.is-green .vr-stat-label { background: none; color: var(--sa-muted); font-size: 12px; font-weight: 700; letter-spacing: 0; padding: 12px 8px 0; }
.vr-stat .vr-stat-value { color: #a3772c; padding: 4px 8px 12px; }
.vr-stat.is-green .vr-stat-value { color: var(--sa-brand); }