/* ==========================================================================
   إحراز — the exercise kit's screens (assets/exercise-kit.js) and the word ladder (assets/word-path.js).
   Builds on components.css (.btn) and vocab.css (.qz-opt look). One section colour per page sets --kit
   (vocabulary teal by default). Green = right · gold = nearly / part · terracotta = wrong only.
   Nothing casts a shadow at rest; text never animates — only fills, borders and bars do.
   ========================================================================== */
.kit { --kit: var(--c-vocab); --kit-t: var(--t-vocab); --kit-l: var(--l-vocab);
  width: 100%; display: grid; gap: 14px; justify-items: center; text-align: center; }
.kit-ask { font-size: 14.5px; color: var(--ink-2); }
.kit-word { font-size: 30px; font-weight: var(--w-display); line-height: 1.3; display: inline-flex; align-items: center; gap: 10px; }
.kit-pos { font-size: 13px; color: var(--muted); }
.kit-meaning { font-size: 20px; font-weight: var(--w-semibold); line-height: 1.6; }
.kit-meaning--big { font-size: 24px; font-weight: var(--w-display); }
.kit-example { font-size: 15.5px; color: var(--ink-2); line-height: 1.7; max-width: 56ch; text-align: left; }
.kit-example mark { background: var(--highlight-soft); color: inherit; padding: 0 2px; border-radius: 4px; }
.kit-note { font-size: 14px; color: var(--muted); }
.kit-statement { font-size: 18px; line-height: 1.8; max-width: 56ch; }
.kit-en { unicode-bidi: isolate; }

/* the «new word» card */
.kit-card { width: 100%; max-width: 520px; display: grid; gap: 8px; justify-items: center; padding: 22px 20px; border-radius: var(--r-card);
  background: var(--kit-t); border: 1px solid var(--kit-l); }

/* choices (1–9) */
.kit-opts { width: 100%; max-width: 560px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.kit-opts--many { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kit-opt { min-height: 52px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
  font: inherit; font-size: 15.5px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; position: relative; top: 0;
  transition: border-color var(--dur-fast), background-color var(--dur-fast), top var(--dur-fast); }
.kit-opt:hover:not(:disabled) { border-color: var(--ink); top: -1px; }
.kit-opt:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.kit-opt:disabled { cursor: default; }
.kit-opt kbd { font-size: 11px; color: var(--muted); }
.kit-opt.is-right { background: var(--tint-violet); border-color: var(--ink); font-weight: var(--w-semibold); }
.kit-opt.is-wrong { background: var(--tint-peach); border-color: var(--terracotta); }
.kit-opt.is-sel { border-color: var(--ink); background: var(--accent-soft); }

/* match-up: two columns; a wrong pair flashes terracotta and resets */
.kit-match { width: 100%; max-width: 600px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.kit-match__col { display: grid; gap: 8px; align-content: start; }
.kit-pair { min-height: 48px; }

/* tiles: letter slots (left to right) and a pool; a placed tile is undone by tapping it */
/* one box per letter, so the student can count them; marks (- ') sit in place, narrow and unboxed */
.kit-slots { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; direction: ltr; }
.kit-slot { width: 38px; height: 46px; display: grid; place-items: center; border-radius: 10px; border: 1px solid var(--ink); border-bottom-width: 2px;
  background: var(--surface); font-size: 22px; font-weight: var(--w-semibold); color: var(--ink); cursor: pointer; }
.kit-slot:empty { background: var(--lilac); border-color: var(--border-strong); border-bottom-color: var(--faint); cursor: default; }
.kit-slot.is-given { background: transparent; border-color: transparent; color: var(--muted); cursor: default; }
.kit-slot.is-mark { width: 14px; }
.kit-built { min-height: 56px; width: 100%; max-width: 600px; padding: 8px; border: 1px solid var(--border-strong); border-radius: 14px; background: var(--surface);
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-start; align-items: center; direction: ltr; }
.kit-tiles { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 600px; direction: ltr; }
.kit-tile { min-width: 44px; min-height: 46px; padding: 8px 14px; border-radius: 12px; border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--ink); font: inherit; font-size: 18px; cursor: pointer; position: relative; top: 0; transition: top var(--dur-fast), background-color var(--dur-fast), border-color var(--dur-fast); }
.kit-tile:hover:not(:disabled):not(.is-used) { border-color: var(--ink); top: -1px; }
.kit-tile:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.kit-tile.is-used { background: var(--lilac); color: transparent; border-color: var(--border); cursor: default; }
.kit-tile.is-sel { border-color: var(--ink); background: var(--accent-soft); }
.kit-tile.is-right { background: var(--tint-violet); border-color: var(--ink); }
.kit-tile.is-wrong { background: var(--tint-peach); border-color: var(--terracotta); }
.kit--right .kit-slot, .kit--right .kit-built .kit-tile { color: var(--ink); border-color: var(--c-speaking); }
.kit--right .kit-built { background: var(--tint-violet); border-color: var(--ink); }
.kit--wrong .kit-slot { border-bottom-color: var(--terracotta); }
.kit--right .kit-slot.is-given, .kit--wrong .kit-slot.is-given { border-color: transparent; }
.kit--wrong .kit-built { background: var(--tint-peach); border-color: var(--terracotta); }
.kit-pickline { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 640px; line-height: 2; }
.kit-pickw { font-size: 17px; }

/* typing and listening */
.kit-type { width: 100%; max-width: 480px; }
.kit-type input, .kit-type textarea { width: 100%; min-height: 54px; padding: 12px 16px; border-radius: var(--r-input); border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--ink); font: inherit; font-size: 18px; text-align: left; }
.kit-type textarea { resize: vertical; line-height: 1.6; }
.kit-type input:focus-visible, .kit-type textarea:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.kit-type input:disabled, .kit-type textarea:disabled { background: var(--lilac); }
.kit-say, .kit-listen { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
  border-radius: var(--r-button); cursor: pointer; font: inherit; }
.kit-say { width: 38px; height: 38px; justify-content: center; padding: 0; }
.kit-listen { min-height: 48px; padding: 10px 20px; font-size: 15px; }
.kit-say:hover, .kit-listen:hover { border-color: var(--ink); }
.kit-say .icon, .kit-listen .icon { width: 20px; height: 20px; }

/* actions and the feedback panel */
.kit-acts { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.kit-acts[hidden] { display: none; }
.kit-acts kbd { margin-inline-start: 6px; font-size: 11px; opacity: .75; }
.kit-acts .btn:disabled { background: var(--lilac); color: var(--muted); border-color: var(--border-strong); box-shadow: none; cursor: not-allowed; top: 0; }
.kit-fb { width: 100%; display: grid; gap: 10px; justify-items: center; padding: 18px 20px; border-radius: var(--r-card); border: 1px solid var(--border-strong); background: var(--canvas); }
.kit-fb[hidden] { display: none; }
.kit-fb h3 { font-size: 18px; font-weight: var(--w-display); }
.kit-fb.is-right { background: var(--tint-violet); border-color: var(--ink); }
.kit-fb.is-nearly { background: var(--highlight-soft); border-color: var(--highlight-edge); }
.kit-fb.is-wrong { background: var(--tint-peach); border-color: var(--terracotta); }
.kit-answer { font-size: 20px; font-weight: var(--w-semibold); display: inline-flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; }
.kit-why, .kit-yours { font-size: 15px; line-height: 1.75; max-width: 60ch; }
.kit-back { font-size: 13.5px; color: var(--ink-2); }

/* «طريق الإتقان»: four step dots and a check, and the ladder of steps with counts */
.wp-dots { display: inline-flex; align-items: center; gap: 4px; vertical-align: middle; }
.wp-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--lilac); border: 1px solid var(--border-strong); }
.wp-dots i.is-done { background: var(--kit, var(--c-vocab)); border-color: var(--kit, var(--c-vocab)); }
.wp-dots i.is-now { background: var(--highlight); border-color: var(--highlight-edge); }
.wp-dots b { font-size: 11px; line-height: 1; color: var(--faint); font-weight: var(--w-display); margin-inline-start: 2px; }
.wp-dots b.is-done { color: var(--c-vocab); }
.wp-ladder { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.wp-ladder li { display: grid; gap: 6px; align-content: start; padding: 14px; border-radius: var(--r-card); background: var(--surface); border: 1px solid var(--border-strong); min-width: 0; }
.wp-ladder li.is-mastered { background: var(--t-vocab); border-color: var(--l-vocab); }
.wp-ladder__n { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); font-weight: var(--w-semibold); }
.wp-ladder__tick { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-size: 11px;
  background: var(--c-vocab); color: var(--on-accent); }
.wp-ladder b { font-size: 15px; font-weight: var(--w-display); line-height: 1.4; }
.wp-ladder__c { display: flex; align-items: baseline; gap: 6px; margin-block-start: 4px; }
.wp-ladder__num { font-size: 22px; font-weight: var(--w-display); line-height: 1.2; font-variant-numeric: tabular-nums; }
.wp-ladder__unit { font-size: 13px; color: var(--ink-2); }
.wp-ladder li.is-empty .wp-ladder__num, .wp-ladder li.is-empty .wp-ladder__unit { color: var(--faint); }
.wp-ladder__bar { height: 6px; border-radius: var(--r-pill); background: var(--lilac); overflow: hidden; }
.wp-ladder__bar i { display: block; height: 100%; background: var(--c-vocab); transition: width var(--dur-slow) var(--ease-out); }

@media (max-width: 720px) {
  .wp-ladder { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wp-ladder li.is-mastered { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .kit-opts, .kit-opts--many { grid-template-columns: minmax(0, 1fr); }
  .kit-word { font-size: 26px; }
  .kit-slot { width: 30px; height: 40px; font-size: 19px; border-radius: 8px; }
  .kit-slots { gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  .kit-opt, .kit-tile, .wp-ladder__bar i { transition: none; }
}