.collection-game{padding-inline:10px}.collection-stage{padding:14px 8px}.collection-prompt{text-align:center;margin:0 0 16px;font-size:14px;font-weight:800}.puzzle-grid,.pixel-grid{gap:4px;max-width:360px;margin:0 auto;display:grid}.puzzle-cell{aspect-ratio:1;border:2px solid var(--border-strong);background:var(--surface-1);min-width:0;min-height:44px;color:var(--text-primary);touch-action:manipulation;border-bottom-width:4px;border-radius:8px;font-size:23px;font-weight:800}.puzzle-cell.is-given{background:var(--surface-2);color:var(--text-secondary);opacity:1;border-style:solid}.puzzle-cell.is-filled{background:var(--puzzle-accent);color:#fff}.puzzle-cell.is-filled.is-given{background:color-mix(in srgb, var(--puzzle-accent) 75%, #333)}.puzzle-cell.is-selected,.pattern-option.is-selected{outline:3px solid var(--teal);outline-offset:1px;border-color:var(--teal)}.puzzle-cell:focus-visible,.pattern-option:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.sudoku-grid{gap:3px}.number-palette{grid-template-columns:repeat(5,1fr);gap:5px;max-width:360px;margin:16px auto 0;display:grid}.number-palette .btn{min-width:0;min-height:44px;padding:6px;font-size:19px}.collection-actions{gap:8px;margin-top:16px;display:flex}.collection-actions .btn{flex:1;min-width:0;min-height:44px;padding:10px 6px;font-size:13px}.collection-actions .btn:disabled,.pattern-option:disabled{opacity:.45}.collection-message{text-align:center;min-height:20px;color:var(--text-secondary);margin-top:12px;font-size:13px}.collection-hint{border:1px dashed var(--border-strong);border-radius:12px;margin-top:16px;padding:12px;font-size:12px}.collection-hint summary{cursor:pointer;min-height:24px;font-weight:800}.collection-hint p{margin:8px 0}.collection-hint button{min-height:44px}.pixel-clue{white-space:nowrap;justify-content:center;align-items:center;gap:3px;font-size:12px;font-weight:900;display:flex}.pixel-clue.vertical{flex-direction:column;justify-content:flex-end;gap:0;min-height:36px;padding-bottom:4px}.pixel-clue.is-matched{color:var(--teal)}.light-cell.is-lit{color:#8a5300;background:#fff0ad;border-color:#d5ab38;box-shadow:0 0 14px #f8d95733}.symbol-tile{max-width:100%;color:var(--text-primary);vertical-align:middle;flex-wrap:nowrap;justify-content:center;align-items:center;gap:3px;display:inline-flex}.symbol-tile svg{flex-shrink:1;width:22px;min-width:0;height:26px}.symbol-sequence{flex-wrap:wrap;justify-content:center;gap:6px;margin:8px auto 20px;display:flex}.pattern-card{background:var(--surface-1);border:2px solid var(--border);border-radius:10px;justify-content:center;align-items:center;min-width:56px;min-height:56px;padding:7px;display:inline-flex}.pattern-card.missing{border:2px dashed var(--puzzle-accent);background:color-mix(in srgb, var(--puzzle-accent) 10%, white);font-size:26px;font-weight:900}.collection-choices{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.pattern-option{background:var(--surface-1);border:2px solid var(--border-strong);touch-action:manipulation;border-bottom-width:4px;border-radius:12px;justify-content:center;align-items:center;min-width:0;min-height:66px;padding:10px;display:flex;position:relative}.pattern-option:hover:not(:disabled){background:var(--surface-2)}.picture-grid{gap:3px;width:100px;max-width:100%;display:grid}.picture-grid i{aspect-ratio:1;background:var(--surface-2);border:1px solid var(--border-strong);border-radius:3px;display:block}.picture-grid .is-filled{background:var(--puzzle-accent);border-color:var(--puzzle-accent)}.rotation-prompt{justify-content:center;align-items:center;gap:18px;margin:4px auto 20px;display:flex}.rotation-prompt strong{font-size:26px;display:block}.rotation-prompt small{max-width:110px;font-size:12px;display:block}.option-number{color:var(--text-secondary);font-size:11px;position:absolute;top:3px;left:6px}.collection-choices .picture-grid{width:76px;margin-block:4px}.odd-grid{gap:5px}.odd-grid .pattern-option{border-radius:9px;min-height:54px;padding:4px}.odd-grid .symbol-tile{gap:1px}.matrix-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;max-width:310px;margin:0 auto 20px;display:grid}.matrix-grid .pattern-card{min-width:0;min-height:62px;padding:8px 4px}.echo-sequence{flex-wrap:wrap;justify-content:center;gap:6px;margin:14px 0;padding:0;list-style:none;display:flex}.echo-sequence li{border:2px solid var(--border);background:var(--surface-1);border-radius:10px;flex-direction:column;align-items:center;width:50px;padding:5px;display:flex}.echo-sequence small{color:var(--text-secondary);font-size:10px}.echo-sequence strong{font-size:23px}.echo-sequence li>span{color:var(--puzzle-accent);font-size:12px;font-weight:800}.echo-pads{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.echo-pads button{flex-direction:column}.echo-pads strong{font-size:25px}.echo-pads small{font-size:12px;font-weight:800}.echo-progress{text-align:center;margin:12px 0;font-size:13px;font-weight:800}.recall-preview{justify-content:center;display:flex}.recall-preview .picture-grid{width:260px}.rule-examples{flex-direction:column;gap:10px;margin-bottom:20px;display:flex}.rule-row{border:2px solid var(--border);border-radius:12px;align-items:center;gap:8px;padding:9px;display:flex}.rule-row>strong{flex-shrink:0;width:22px;font-size:23px}.rule-row>div{flex-wrap:wrap;gap:5px;display:flex}.rule-row .pattern-card{min-width:45px;min-height:45px;padding:5px}.rule-yes{border-color:var(--teal)}.rule-yes>strong{color:var(--teal)}.rule-no>strong{color:var(--danger)}.collection-feedback{text-align:center;padding:16px 4px}.collection-feedback .logic-result-icon{margin-inline:auto}.collection-solution{background:var(--surface-2);border-radius:14px;margin:18px auto;padding:14px}.collection-solution>.picture-grid{width:160px;margin:0 auto}@media (min-width:400px){.collection-stage{padding:20px}.collection-game{padding-inline:16px}}