/* ==========================================================================
   Sanaston sensei (sensei.html, en/sensei.html, js/sensei.js)
   Käyttää tekniikat.css:n sq-*-pelikomponentteja (kortti, vaihtoehdot, tulos) ja lisää
   vyöpolun, opetuskortin ja kirjoitettavan vastauksen tyylit. Värit tulevat sivuston
   omista muuttujista (otava.css), vyön väri tulee datasta (--bc).
   ========================================================================== */
.sn .sq-body { max-width: 840px; }

.sn-map { display: flex; flex-direction: column; gap: 20px; }

/* Sensei-rivi: kanji-merkki ja yksi lyhyt ohje */
.sn-sensei { display: flex; align-items: center; gap: 16px; padding: 14px 16px; border-radius: 4px; border: 1px solid var(--ot-line); background: var(--ot-card); box-shadow: inset 4px 0 0 var(--ot-red); }
.sn-sensei p { margin: 0; font: 500 16px/1.5 Roboto, sans-serif; color: var(--ot-ink); overflow-wrap: anywhere; }
.sn-mark { flex: 0 0 auto; width: 52px; height: 52px; display: inline-flex; align-items: center; justify-content: center; border-radius: 4px; border: 1px solid var(--ot-line); background: var(--ot-bg); color: var(--ot-red-text); font: 900 30px/1 var(--ot-jp); }
.sn-sensei.is-inline { margin-top: 6px; padding: 0; border: 0; background: transparent; box-shadow: none; }

/* Tilastot */
.sn-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; }
.sn-stats > div { padding: 12px 14px; border-radius: 4px; border: 1px solid var(--ot-line); background: var(--ot-card); min-width: 0; }
.sn-stats dt { font: 500 11px/1.3 var(--ot-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ot-ink-3); }
.sn-stats dd { margin: 4px 0 0; font: 900 22px/1.15 Roboto, sans-serif; color: var(--ot-ink); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

/* Työkalurivi: kertaus, avaa kaikki vyöt, nollaus */
.sn-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.sn-open { display: flex; align-items: flex-start; gap: 12px; min-height: 44px; cursor: pointer; }
.sn-open input { flex: 0 0 auto; width: 24px; height: 24px; margin: 2px 0 0; accent-color: var(--ot-red); cursor: pointer; }
.sn-open input:focus-visible { outline: 3px solid var(--ot-ink); outline-offset: 3px; }
.sn-open > span { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.sn-open b { font: 700 15px/1.3 Roboto, sans-serif; color: var(--ot-ink); }
.sn-open small { font: 400 13px/1.4 var(--ot-mono); color: var(--ot-ink-3); }
.sn-reset { margin-left: auto; }
.sn-link { min-height: 44px; padding: 0 12px; border: 0; background: transparent; color: var(--ot-ink-2); font: 700 14px/1.2 Roboto, sans-serif; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.sn-link:hover { color: var(--ot-ink); }
.sn-link:focus-visible, .sn-lesson:focus-visible, .sn-terms summary:focus-visible { outline: 3px solid var(--ot-ink); outline-offset: 3px; }
.sn-link.is-danger { color: var(--ot-red-text); }
.sn-ask { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 2px 8px; font: 500 14px/1.4 Roboto, sans-serif; color: var(--ot-ink); }
.sn-warn { margin: 0; padding: 10px 14px; border-radius: 4px; border: 1px solid var(--ot-line); background: var(--ot-card); font: 400 14px/1.5 var(--ot-mono); color: var(--ot-ink-2); }

/* Vyöpolku */
.sn-belts { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.sn-belt { display: flex; flex-direction: column; gap: 10px; padding: 22px 16px 20px; border-radius: 4px; border: 1px solid var(--ot-line); background: var(--ot-card); box-shadow: inset 0 6px 0 var(--bc), inset 0 -6px 0 var(--bc); scroll-margin-top: 90px; }
.sn-belt-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 12px; }
.sn-belt-head h3 { margin: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px; font: 900 clamp(20px, 4.4vw, 26px)/1.1 Roboto, sans-serif; text-transform: uppercase; color: var(--ot-ink); }
.sn-belt-head small { font: 500 12px/1.3 var(--ot-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ot-ink-3); }
.sn-state { padding: 6px 10px; border-radius: 999px; border: 1px solid var(--ot-line); font: 700 12px/1 var(--ot-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ot-ink-2); }
.sn-belt.is-done .sn-state { border-color: var(--ot-live); color: var(--ot-live); }
.sn-belt-meta { margin: 0; font: 400 13px/1.5 var(--ot-mono); color: var(--ot-ink-3); }
.sn-lock { margin: 0; font: 500 15px/1.5 Roboto, sans-serif; color: var(--ot-ink-2); }

.sn-lessons { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.sn-lesson { width: 100%; min-height: 60px; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 10px 14px 10px 10px; border-radius: 6px; border: 1px solid var(--ot-line); background: var(--ot-bg); color: var(--ot-ink); text-align: left; cursor: pointer; transition: border-color 0.15s, transform 0.15s; }
.sn-lesson:hover:not(:disabled) { border-color: var(--ot-ink-3); }
.sn-lesson:active:not(:disabled) { transform: scale(0.99); }
.sn-lesson:disabled { cursor: not-allowed; border-style: dashed; background: transparent; color: var(--ot-ink-3); }
.sn-lesson.is-current { border-color: var(--ot-ink); box-shadow: 0 0 0 2px var(--ot-ink); }
.sn-num { width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; border-radius: 4px; border: 2px solid var(--bc); font: 700 14px/1 var(--ot-mono); color: var(--ot-ink); font-variant-numeric: tabular-nums; }
.sn-lt { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.sn-lt b { font: 700 16px/1.3 Roboto, sans-serif; color: inherit; overflow-wrap: anywhere; }
.sn-lt small { font: 400 12px/1.4 var(--ot-mono); color: var(--ot-ink-3); }
.sn-ls { font: 700 12px/1.3 var(--ot-mono); letter-spacing: 0.06em; text-transform: uppercase; text-align: right; color: var(--ot-ink-2); }
.sn-lesson.is-done .sn-ls { color: var(--ot-live); }
.sn-lesson:disabled .sn-ls { color: var(--ot-ink-3); }
.sn-exam { border-width: 2px; }

/* Vyön termilista */
.sn-terms { margin-top: 4px; }
.sn-terms summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; font: 700 13px/1.3 var(--ot-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ot-ink-2); }
.sn-terms ul { list-style: none; margin: 4px 0 0; padding: 0; }
.sn-terms li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) auto; gap: 4px 12px; padding: 9px 0; border-top: 1px solid var(--ot-line); }
.sn-tjp { font: 700 15px/1.35 Roboto, sans-serif; color: var(--ot-ink); overflow-wrap: anywhere; }
.sn-tfi { font: 400 15px/1.35 Roboto, sans-serif; color: var(--ot-ink-2); overflow-wrap: anywhere; }
.sn-tst { font: 500 11px/1.5 var(--ot-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ot-ink-3); text-align: right; }

/* Opetuskortti */
.sn-mean { margin: 4px 0 0; font: 700 clamp(20px, 4.6vw, 28px)/1.25 Roboto, sans-serif; color: var(--ot-ink); overflow-wrap: anywhere; }
.sn-parts { margin: 6px 0 0; font: 400 15px/1.6 Roboto, sans-serif; color: var(--ot-ink-2); }
.sn-parts span { margin-right: 6px; font: 500 11px/1.3 var(--ot-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ot-ink-3); }
.sn-parts b { color: var(--ot-ink); }
.sn-nav { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 10px; }
.sn-nav .ot-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Kirjoitettu vastaus */
.sn-type { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.sn-type label { font: 500 12px/1.3 var(--ot-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ot-ink-3); }
.sn-type input { width: 100%; min-height: 56px; padding: 0 14px; border-radius: 6px; border: 2px solid var(--ot-line); background: var(--ot-card); color: var(--ot-ink); font: 500 22px/1.2 Roboto, sans-serif; }
.sn-type input:focus-visible { outline: 3px solid var(--ot-ink); outline-offset: 2px; }
.sn-type input[readonly] { color: var(--ot-ink-2); }
.sn-type .sq-hint { margin-top: 0; }
.sq-feedback .sq-ra { margin-left: 2px; font-weight: 700; }
.sn-teach .sq-ctx { margin-top: 4px; }

@media (max-width: 560px) {
  .sn-stats > div { padding: 10px 10px; }
  .sn-stats dd { font-size: 18px; }
  .sn-tools > .ot-btn, .sn-nav .ot-btn { width: 100%; }
  .sn-reset { margin-left: 0; }
  .sn-belt { padding: 20px 12px 16px; }
  .sn-lesson { grid-template-columns: 32px minmax(0, 1fr); gap: 4px 10px; }
  .sn-ls { grid-column: 2; text-align: left; }
  .sn-terms li { grid-template-columns: minmax(0, 1fr) auto; }
  .sn-tfi { grid-column: 1 / -1; grid-row: 2; }
  .sn-sensei { padding: 12px; gap: 12px; }
  .sn-mark { width: 44px; height: 44px; font-size: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  .sn-lesson { transition: none !important; }
}