/* わんこと学ぶ麻雀（/learn/）の画面。読み物（page.css の read-*）の上に重ねる。
   色は style.css の先頭の「色（テーマ）」の変数だけを使う（ライト・ダークの両方で確かめる） */

/* ---- 入口・コースのカード ---- */
.lr-courses { display: grid; gap: 12px; margin: 16px 0 24px; }
.page-main a.lr-course { position: relative; display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: var(--radius); background: var(--card-bg); box-shadow: var(--shadow); border: 1px solid var(--card-border); text-decoration: none; color: var(--text); -webkit-tap-highlight-color: transparent; }
.lr-course-icon { flex-shrink: 0; width: 52px; height: 52px; display: flex; align-items: center; justify-content: center; border-radius: 14px; background: var(--primary-light); }
.lr-course-icon img { width: 26px; height: auto; transform: rotate(-6deg); filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.25)); }
.lr-course-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.lr-course-body b { font-size: 1rem; line-height: 1.4; }
.lr-course-body span { font-size: 0.8125rem; line-height: 1.55; color: var(--text-secondary); }
.lr-course-progress { align-self: flex-start; font-size: 11px; font-weight: 700; color: var(--accent-on-tint); }
.lr-course-progress:empty { display: none; }
.page-main a.lr-course.is-passed .lr-course-progress { padding: 1px 8px; border-radius: 999px; background: var(--recommend-bg); color: var(--recommend-text); }

/* レッスンの一覧（コースのページ・各レッスンの下） */
.lr-lessons { list-style: none; counter-reset: lr; padding: 0 !important; margin: 12px 0 20px !important; display: grid; gap: 8px; }
.lr-lessons li { margin: 0 !important; }
.page-main .lr-lessons a { counter-increment: lr; display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--r-md); background: var(--card-bg); border: 1px solid var(--border); text-decoration: none; color: var(--text); }
.lr-lessons a::before { content: counter(lr); flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; background: var(--fill-alt); color: var(--text-secondary); }
.lr-lessons a.is-done::before { content: '✓'; background: var(--primary); color: var(--on-accent); }
.lr-lessons a.is-current { border-color: var(--primary); }
.lr-lessons a span { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.lr-lessons a b { font-size: 0.9375rem; line-height: 1.45; }
.lr-lessons a small { font-size: 0.75rem; color: var(--text-tertiary); }
.lr-lessons a.lr-lessons-finale::before { content: '★'; background: var(--recommend-bg); color: var(--recommend-text); }

/* ---- 問題 ---- */
.lr-try, .lr-practice { margin: 20px 0 24px; padding: 14px; border-radius: var(--r-md); background: var(--card-bg); border: 1px solid var(--border); }
.lr-try-label, .lr-practice-label { display: inline-block; margin-bottom: 8px; padding: 2px 10px; border-radius: 999px; background: var(--primary); color: var(--on-accent); font-size: 12px; font-weight: 700; }
.lr-practice-label { background: var(--recommend-bg); color: var(--recommend-text); }
.page-main .lr-practice > p { font-size: 0.875rem; color: var(--text-secondary); }
.page-main .lr-lead { margin: 0 0 10px; font-size: 0.9375rem; line-height: 1.6; }
.lr-counter { display: inline-block; margin-right: 8px; font-size: 12px; font-weight: 700; color: var(--text-tertiary); font-variant-numeric: tabular-nums; }
.lr-info { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.lr-info span { padding: 3px 9px; border-radius: 999px; background: var(--fill-alt); font-size: 12px; font-weight: 600; color: var(--text-secondary); }

.lr-tiles { display: inline-flex; flex-wrap: nowrap; }
.lr-tile { display: block; width: 26px; height: auto; }
.lr-tile-sm { display: inline-block; width: 18px; vertical-align: -6px; }
.lr-hand { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 6px 8px; margin-bottom: 12px; padding: 10px; border-radius: var(--r-sm); background: var(--fill-subtle); }
.lr-hand .lr-tiles { flex-wrap: wrap; }
.lr-meld, .lr-win { display: inline-flex; flex-direction: column; align-items: center; gap: 2px; }
.lr-meld small, .lr-win small { font-size: 10px; font-weight: 700; color: var(--text-tertiary); }
.lr-win small { color: var(--primary); }
.lr-win .lr-tile { box-shadow: 0 0 0 2px var(--primary); border-radius: 3px; }
/* スマホの幅でも、手牌13枚が1段に収まるように少し小さくする */
@media (max-width: 440px) {
  .lr-hand { padding: 8px 6px; gap: 6px; }
  .lr-hand .lr-tile { width: 21px; }
}

/* 牌を選ぶ（待ち） */
.lr-pick { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 4px; margin-bottom: 12px; }
.lr-pick-btn { padding: 3px; border-radius: 6px; border: 2px solid transparent; background: transparent; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.lr-pick-btn .lr-tile { width: 100%; max-width: 34px; margin: 0 auto; }
.lr-pick-btn.is-on { border-color: var(--primary); background: var(--primary-light); }
.lr-pick-btn:disabled { cursor: default; opacity: 0.75; }
.lr-pick.is-one-suit .lr-pick-btn .lr-tile { max-width: 40px; }

/* ボタン */
.lr-choices { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 8px; margin-bottom: 12px; }
.lr-choice { min-height: 46px; padding: 8px 10px; border-radius: var(--r-sm); border: 1px solid var(--border); background: var(--input-bg); color: var(--text); font: inherit; font-size: 0.9375rem; font-weight: 700; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.lr-choice:active { background: var(--fill-press); }
.lr-choice:disabled { cursor: default; opacity: 0.55; }
.lr-choice.is-answer { opacity: 1; border-color: var(--primary); background: var(--primary-light); color: var(--accent-on-tint); }
.lr-btn, .page-main a.lr-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin: 4px 8px 0 0; padding: 10px 20px; border-radius: 999px; border: 0; background: var(--primary); color: var(--on-accent); font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.lr-btn:disabled { opacity: 0.45; cursor: default; }
.lr-btn-sub { background: var(--fill-alt); color: var(--text); }
.lr-link { display: inline-block; margin: 2px 0 8px; padding: 6px 0; border: 0; background: none; color: var(--primary); font: inherit; font-size: 0.875rem; font-weight: 700; cursor: pointer; }

/* ヒント・結果 */
.lr-hints { display: grid; gap: 8px; margin: 4px 0 8px; }
.lr-hint, .lr-result { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; border-radius: var(--r-sm); background: var(--fill-subtle); }
.page-main .lr-hint p, .page-main .lr-result p { margin: 0; font-size: 0.875rem; line-height: 1.7; }
.lr-wanko { --wanko-size: 44px; }
.lr-wanko-lg { --wanko-size: 84px; }
.lr-result { margin: 8px 0 10px; }
.lr-result > div { flex: 1; min-width: 0; }
.lr-result.is-right { background: var(--ok-bg); }
.lr-result.is-right b { color: var(--accent-on-tint); }
.lr-result.is-wrong { background: var(--warn-bg); }
.lr-result.is-wrong b { color: var(--danger); margin-right: 4px; }
.lr-explain { margin-top: 6px; font-size: 0.875rem; line-height: 1.75; }
.lr-explain small { color: var(--text-secondary); }
.lr-answer-tiles { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.lr-answer-tiles b { font-size: 12px; color: var(--text-secondary); }
.lr-answer-val { font-weight: 700; }
.page-main ul.lr-explain-list { list-style: none; padding: 0; margin: 4px 0 0; }
.page-main .lr-explain-list li { margin: 0 0 4px; font-size: 0.875rem; }
.lr-split { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.lr-split .lr-tile { width: 20px; }
.lr-split-left { padding-left: 6px; border-left: 2px dashed var(--text-tertiary); }
.lr-fu-table { width: 100%; margin: 6px 0; border-collapse: collapse; font-size: 0.8125rem; }
.lr-fu-table th, .lr-fu-table td { padding: 4px 6px; border-bottom: 1px solid var(--separator); text-align: left; font-weight: 500; }
.lr-fu-table td { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.lr-fu-sum th, .lr-fu-sum td { font-weight: 700; border-bottom: 0; }

/* 終わったとき */
.lr-finish { text-align: center; padding: 8px 0 4px; }
.lr-finish .lr-wanko { display: block; margin: 0 auto 6px; }
.page-main .lr-finish-score { margin: 0 0 4px; font-size: 1.0625rem; }
.lr-finish-score b { font-size: 1.5rem; color: var(--primary); }
.page-main .lr-finish-note { margin: 0 0 8px; font-size: 11px; color: var(--text-tertiary); }
.lr-finish.is-passed .lr-finish-score b { color: var(--gold); }
.lr-finish .lr-btn { margin: 8px 4px 0; }

/* レッスンの前後 */
.lr-pager { display: flex; justify-content: space-between; gap: 12px; margin: 24px 0 8px; font-size: 0.875rem; }
.lr-pager a { color: var(--primary); text-decoration: none; font-weight: 700; }

@media (prefers-reduced-motion: no-preference) {
  .lr-result.is-right .lr-wanko { animation: lr-hop 0.5s ease-out; }
  @keyframes lr-hop { 0% { transform: translateY(6px) scale(0.9); } 60% { transform: translateY(-4px) scale(1.05); } 100% { transform: none; } }
}