/* Word Ladder Solver + Word Ladder Maker */
.wl-pair { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: end; }
.tool-in .wl-pair label { margin: 0; }
.wl-pair input { width: 100%; font: 700 20px var(--font-sans); letter-spacing: .15em; text-transform: uppercase; text-align: center; }
.wl-swap { padding: 10px 12px; font-size: 18px; line-height: 1; }
.wl-ladder { list-style: none; padding: 0; margin: 8px 0 16px; }
.wl-ladder li { display: flex; align-items: center; gap: 10px; margin: 0; padding: 3px 0; }
.wl-ladder li + li { border-top: 1px dashed var(--line); }
.wl-n { width: 54px; flex: none; font: 600 12px var(--font-sans); color: var(--muted); text-align: right; }
.wl-tiles { display: inline-flex; gap: 3px; flex-wrap: wrap; }
.wl-t { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border: 1px solid var(--line-strong); border-radius: 4px; font: 700 14px var(--font-sans); color: var(--ink); background: var(--bg-card); }
.wl-ladder.big .wl-t { width: 36px; height: 36px; font-size: 19px; }
.wl-t.ch { background: var(--accent); border-color: var(--accent); color: #fff; }
.wl-rare { font: 500 11px var(--font-sans); color: var(--muted); border: 1px solid var(--line); border-radius: 9px; padding: 0 6px; }
.wl-alts-wrap summary { cursor: pointer; font: 600 15px var(--font-sans); margin: 8px 0; }
.wl-alts { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 4px 20px; padding-left: 1.4em; }
.wl-alts .wl-ladder { margin: 4px 0 10px; }
.wl-alts .wl-n { width: 40px; }
@media (max-width: 420px) {
  .wl-pair { grid-template-columns: 1fr; }
  .wl-swap { justify-self: start; }
  .wl-ladder.big .wl-t { width: 30px; height: 30px; font-size: 16px; }
}

/* ---- maker worksheet ---- */
.wm-ladders-in { display: grid; gap: 8px; }
.wm-lin { display: grid; grid-template-columns: auto 1fr 1fr; gap: 6px; align-items: center; }
.tool-in .wm-lin label { margin: 0; }
.wm-vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wm-lin b { font: 700 13px var(--font-sans); color: var(--muted); }
.wm-lin input { text-transform: uppercase; letter-spacing: .1em; font-weight: 700; padding: 8px 10px; }
.wm-clues { margin-top: 10px; }
.wm-clues fieldset { border: 1px solid var(--line); border-radius: var(--radius-md); padding: 8px 10px; margin: 8px 0; }
.wm-clues legend { font: 700 13px var(--font-sans); padding: 0 4px; }
.tool-in .wm-clues label { display: grid; grid-template-columns: 80px 1fr; gap: 8px; align-items: center; margin: 4px 0; font-weight: 500; }
.wm-clues input { padding: 6px 10px; font: 14px var(--font-sans); }
.wm-sheetgrid { display: grid; grid-template-columns: repeat(var(--wm-cols, 1), minmax(0, 1fr)); gap: 18px 24px; margin-top: 10px; }
.wm-lad { break-inside: avoid; }
.wm-lad h3 { margin: 0 0 6px; font-size: 15px; text-align: center; color: #0f172a !important; }
.wm-rungs { list-style: none; padding: 0; margin: 0; }
.wm-rung { display: flex; flex-direction: column; align-items: center; padding: 5px 0; border-left: 3px solid #334155; border-right: 3px solid #334155; position: relative; }
.wm-rung + .wm-rung { border-top: 2px solid #94a3b8; }
.wm-boxes { display: flex; gap: 3px; justify-content: center; }
.wm-box { width: var(--wm-cell, 30px); height: var(--wm-cell, 30px); border: 1.5px solid #0f172a; display: inline-flex; align-items: center; justify-content: center; font: 700 calc(var(--wm-cell, 30px) * .58) var(--font-sans); color: #0f172a; background: #fff; }
.wm-rung.given .wm-box { background: #e2e8f0; }
.wm-box i { font-style: normal; visibility: hidden; color: #4f46e5; }
.wm-show .wm-box i, .keysheet .wm-box i { visibility: visible; }
.wm-clue { font: 12.5px/1.3 var(--font-sans); color: #334155; margin-top: 3px; text-align: center; padding: 0 6px; }
.wm-tip { font: 12.5px/1.4 var(--font-sans); color: #334155; text-align: center; margin: 0 0 6px; }
@media print {
  .wm-sheetgrid { gap: 10pt 18pt; }
  .wm-box { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .wm-show .wm-box i { visibility: hidden; }
  .keysheet .wm-box i { visibility: visible !important; color: #000 !important; }
  .wm-clue, .wm-tip { color: #000 !important; }
}
@media (max-width: 520px) {
  .wm-sheetgrid { grid-template-columns: 1fr; }
}