/* Additive learning surfaces, using the existing linen palette and type. */
#language .language-nav { display: flex; flex-wrap: wrap; overflow: visible; }
#language .language-tab { min-height: 44px; min-width: 0; flex: 1 1 auto; white-space: normal; }
#language .language-tab:focus-visible,
.learning :is(button, summary, input, textarea, select):focus-visible,
.learning-source:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.learning { color: var(--ink); text-align: left; min-width: 0; line-height: 1.75; overflow-wrap: anywhere; }
.learning [hidden] { display: none !important; }
.learning :is(h3, h4) { margin: 0 0 12px; color: var(--ink); }
.learning p { margin: 10px 0; font-size: 14px; font-style: normal; }
.learning :is(button, input, textarea, select), .learning-source { font: inherit; min-height: 44px; max-width: 100%; }
.learning button, .learning-source { border: 1px solid var(--line); background: var(--cream); color: var(--ink); border-radius: 8px; padding: 9px 14px; cursor: pointer; margin: 4px 6px 4px 0; white-space: normal; text-align: left; }
.learning button:hover:not(:disabled), .learning button[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); }
.learning button:disabled, .learning select:disabled { cursor: default; opacity: .65; }
.learning-scenarios { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 24px 0; }
.learning-panel { border: 1px solid var(--line); background: var(--cream); border-radius: 12px; padding: 24px; margin: 18px 0; min-width: 0; }
.learning-scenarios .learning-panel { margin: 0; }
.learning details { margin: 16px 0; }
.learning summary { cursor: pointer; min-height: 44px; padding: 10px 0; font-weight: 600; }
.learning label { display: block; margin: 12px 0; font-size: 14px; }
.learning :is(input, select, textarea) { display: block; width: 100%; border: 1px solid var(--line); border-radius: 7px; padding: 10px; color: var(--ink); background: var(--cream); box-sizing: border-box; }
.learning textarea { resize: vertical; }
.learning .learning-japanese { font-size: clamp(18px, 2.4vw, 25px); line-height: 1.8; white-space: pre-wrap; }
.learning-intention { border-left: 3px solid var(--accent); padding: 10px 16px; }
.learning-warning { background: var(--accent-soft); color: #7b321f; border-left: 3px solid var(--accent); padding: 12px; }
.learning-audio-status { color: var(--text-muted); }
.learning-example, .learning-review-row { padding: 14px 0; border-bottom: 1px solid var(--line); }
.learning-repair { border-top: 1px solid var(--line); }
.lyric-learning { border-top: 1px solid var(--line); margin-top: 20px; }
.learning-chunks { display: flex; flex-wrap: wrap; gap: 6px; white-space: pre-wrap; }
.learning-chunk-detail { background: var(--paper); border: 1px solid var(--line); padding: 18px; margin: 12px 0; border-radius: 8px; }
.learning-snapshot, .learning-note-text { white-space: pre-wrap; }
.learning-note { margin-top: 22px; }
.song-library-item .learning-coverage { display: block; color: var(--sage); font-size: 11px; margin-top: 5px; font-weight: 500; }
.learning-source { font-size: 12px; }
@media (max-width: 700px) {
  .learning-scenarios { grid-template-columns: 1fr; }
  .learning-panel { padding: 16px; }
  #language .language-nav { gap: 8px; }
  #language .language-tab { flex: 1 1 calc(50% - 8px); padding: 12px 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .learning *, #language .language-tab, .learning-source { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}