/* Foundation lessons use the same tokens, cards, buttons and themes as the dictionary. */
.learn { min-width: 0; }
.learn [hidden] { display: none !important; }
.learn-hub { margin-block: 28px; }
.learn-hub h2 { margin-top: 10px; }
.learn-nav .btn[aria-current='page'] { background: var(--accent-soft); border-color: var(--accent); }
.learn-progress { padding: 14px 18px; margin-block: 18px; }
.learn-progress > div { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px 24px; }
.learn-progress progress { width: 100%; height: 10px; accent-color: var(--accent); }
.learn-progress p { margin: 4px 0 0; }
.learn-toolbar { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; margin-block: 18px; }
.learn-toolbar label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; min-width: 0; }
.learn-toolbar label:first-child { flex: 1 1 220px; }
.learn-toolbar input[type='search'], .learn-toolbar select { border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); padding: 9px 12px; font: inherit; min-width: 0; max-width: 100%; }
.learn-toolbar .learn-check { flex-direction: row; align-items: center; padding-block: 10px; }
.learn-workspace { display: grid; grid-template-columns: minmax(200px, 0.7fr) minmax(0, 1.7fr); gap: 20px; align-items: start; }
.learn-list { display: grid; gap: 6px; max-height: 560px; overflow-y: auto; padding: 2px; }
.learn-item { justify-content: space-between; width: 100%; text-align: left; font-weight: 400; padding: 10px 12px; }
.learn-item[aria-pressed='true'] { background: var(--accent-soft); border-color: var(--accent); }
.learn-item small { color: var(--muted); }
.learn-detail { overflow-wrap: anywhere; min-width: 0; }
.learn-detail h2 { margin: 0 0 6px; font-size: 32px; }
.learn-detail h3 { margin-top: 22px; }
.learn-detail .learn-gloss { font-size: 18px; }
.learn-detail .btn-row { margin-block: 12px; }
.learn-example { border-left: 3px solid var(--border); padding-left: 12px; margin-block: 16px; }
.learn-example p { margin: 4px 0; }
.learn-forms { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 16px 0; }
.learn-forms > div { padding: 10px 12px; background: var(--surface-2); border-radius: 8px; }
.learn-forms dt { color: var(--muted); font-size: 13px; }
.learn-forms dd { margin: 4px 0 0; font-size: 20px; }
.learn-transfer, #learn-migration { border-top: 1px solid var(--border); margin-top: 24px; padding-top: 16px; }
.learn-transfer summary, #learn-migration summary { cursor: pointer; }
.learn-quiz-options { display: grid; gap: 10px; margin-block: 18px; }
.learn-quiz-options .btn { white-space: normal; text-align: left; justify-content: start; }
.learn-quiz-options .btn[data-result='correct'] { border: 2px solid var(--n5); }
.learn-quiz-options .btn[data-result='wrong'] { border: 2px solid var(--n1); }
.learn .btn:disabled { cursor: default; opacity: 0.65; }
.learn-question-word { font: 700 clamp(24px, 3vw, 36px)/1.5 var(--jp); }
.kana-chart > section > h2 { font-size: 20px; margin-block: 20px 10px; }
.kana-row { display: grid; grid-template-columns: 48px repeat(5, minmax(0, 1fr)); gap: 8px; margin-bottom: 8px; align-items: stretch; }
.kana-row.combinations { grid-template-columns: 48px repeat(3, minmax(0, 1fr)); }
.kana-row > strong { align-self: center; font-size: 13px; color: var(--muted); }
.kana-tile { display: flex; flex-direction: column; align-items: center; position: relative; padding: 10px 4px; gap: 2px; border-radius: var(--radius); font-weight: 400; }
.kana-tile .kana-char { font-size: clamp(22px, 3vw, 36px); line-height: 1.25; }
.kana-tile[data-studied='true'] { background: var(--accent-soft); border-color: var(--accent); }
.kana-tile .kana-tick { position: absolute; right: 4px; top: 0; font-size: 14px; }
.kana-tile small { font-size: 13px; color: var(--muted); }
#kana-dialog { width: min(560px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); overflow-y: auto; color: var(--text); }
#kana-dialog::backdrop { background: rgb(0 0 0 / 0.45); }
#kana-close { display: flex; margin-left: auto; margin-bottom: 12px; }
#kana-dialog h2 { font: 700 64px/1.4 var(--jp); margin-block: 0; }
.learn-message-error { color: var(--n1); }
[data-appearance='silver-era'] .learn-toolbar input[type='search'], [data-appearance='silver-era'] .learn-toolbar select { border-radius: 2px; }
[data-appearance='silver-era'] .learn-forms > div { background: var(--surface-2); border: 1px solid var(--border); border-radius: 2px; }
[data-appearance='silver-era'] .kana-tile { border-radius: 2px; }
@media (max-width: 640px) {
  .learn-workspace { grid-template-columns: minmax(0, 1fr); }
  .learn-list { max-height: 220px; }
  .learn-forms { grid-template-columns: minmax(0, 1fr); }
  .kana-row, .kana-row.combinations { gap: 4px; grid-template-columns: 24px repeat(5, minmax(0, 1fr)); }
  .kana-row.combinations { grid-template-columns: 24px repeat(3, minmax(0, 1fr)); }
  .kana-tile { padding: 10px 1px; }
  .kana-tile .kana-char { font-size: 24px; }
  .kana-tile small { font-size: 12px; }
  .kana-row > strong { font-size: 11px; white-space: nowrap; }
  .learn-toolbar label { flex: 1 1 120px; }
}