/* Lab: Boggle-style letter grid — WordCheetah / Upwords chrome (no felt board) */

.page--boggle.page--solver {
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.page--boggle .left {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 100%;
}

.page--boggle .left > .lab-badge,
.page--boggle .left > h1,
.page--boggle .left > .solver-sub,
.page--boggle .left > .solver-note,
.page--boggle .left > .toggle-container,
.page--boggle .left > .solve-status {
  width: 100%;
  max-width: 28rem;
  align-self: center;
}

.page--boggle .button-row {
  justify-content: center;
  width: min(100%, 28rem);
  max-width: 100%;
  align-self: center;
}

.page--boggle .boggle-board-wrapper {
  width: 100%;
  max-width: 28rem;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  box-sizing: border-box;
}

.page--boggle .right {
  width: 100%;
  max-width: 28rem;
  min-width: 0;
  align-self: center;
}

.page--boggle .lab-badge {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.page--boggle .boggle-board {
  --boggle-gap: var(--cell-gap, 4px);
  display: grid;
  gap: var(--boggle-gap);
  margin: 12px 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  grid-template-columns: repeat(var(--board-cols, 4), minmax(0, 1fr));
  background: transparent;
  padding: 0;
}

.page--boggle .boggle-cell-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  height: auto;
  min-width: 0;
  container-type: size;
}

/* Same tile language as Upwords .cell; letter size tracks cell (~42% like Upwords) */
.page--boggle .boggle-cell {
  width: 100%;
  height: 100%;
  /* Ratio stays with square; 16px floor only when the cell itself is tiny (iOS zoom) */
  font-size: max(16px, 42cqmin);
  line-height: 1;
  font-weight: 600;
  text-align: center;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  outline: none;
  caret-color: transparent;
  background: var(--card);
  color: var(--text);
  text-transform: none;
  padding: 0;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.page--boggle .boggle-cell.is-digraph {
  font-size: max(14px, 32cqmin);
  letter-spacing: -0.02em;
}

.page--boggle .boggle-cell.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

@media (max-width: 400px) {
  .page--boggle .boggle-board {
    --boggle-gap: 3px;
  }

  .page--boggle .boggle-cell {
    border-radius: 4px;
    border-width: 1px;
  }
}


.page--boggle .boggle-cell.is-blank {
  /* Same chrome as letter tiles; ■ uses normal letter color */
  color: var(--text);
  background: var(--card);
  border-color: var(--border);
  font-size: max(16px, 42cqmin);
}

/* Digraph chooser — same body-layer pattern as Upwords →/↓ */
.digraph-chooser {
  position: absolute;
  z-index: 3000;
  display: flex;
  gap: 6px;
  padding: 4px;
  border-radius: 10px;
  background: var(--card);
  border: 1.5px solid var(--border);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  -webkit-tap-highlight-color: transparent;
  pointer-events: auto;
}

.digraph-chooser[hidden] {
  display: none !important;
}

.digraph-chooser-btn {
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.digraph-chooser-btn:active,
.digraph-chooser-btn:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  outline: none;
}

/* Path highlight + arrow overlay (Upwords-like chrome) */
.page--boggle .boggle-board-wrapper {
  position: relative;
}

.page--boggle .boggle-path-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4;
  overflow: visible;
}

.page--boggle .boggle-path-arrow {
  stroke: var(--accent, #e67e22);
  stroke-width: 2.5;
  stroke-linecap: round;
  fill: none;
  opacity: 0.95;
}

.page--boggle .boggle-cell.play-highlight,
.page--boggle .boggle-cell-container.play-highlight .boggle-cell {
  border-color: var(--accent);
  background: rgba(230, 126, 34, 0.16);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.page--boggle .boggle-cell-container.play-highlight {
  z-index: 2;
}

.page--boggle .boggle-cell-container.path-node {
  z-index: 3;
}

/* Public page: how-to / rules / disclaimer, below the board and results */
.letter-grid-info {
  width: 100%;
  max-width: 40rem;
  align-self: center;
  margin-top: 28px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.letter-grid-info h2 {
  margin-top: 20px;
}

.letter-grid-info ol,
.letter-grid-info ul {
  padding-left: 1.2em;
}

.letter-grid-info li {
  margin-bottom: 0.5em;
}


/* Size picker: "5×5 / Big Boggle" style two-line labels */
.page--boggle .toggle-container {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: 8px;
}

.page--boggle .toggle-container label {
  align-items: flex-start;
  gap: 6px;
  padding: 4px 6px;
}

.page--boggle .toggle-container input {
  margin-top: 0.2em;
}

.page--boggle .size-label {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.2;
}

.page--boggle .size-label small {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--muted);
}

/* FAQ: native <details>, collapsed by default (text stays in the HTML) */
.letter-grid-info .faq-item {
  border-bottom: 1px solid var(--border);
}

.letter-grid-info .faq-item summary {
  cursor: pointer;
  font-weight: 600;
  padding: 11px 0; /* ~44px tap target, keeps the native disclosure marker */
}

.letter-grid-info .faq-item p {
  margin: 0 0 12px;
}