.stage{max-width:640px;margin:24px auto;padding:16px;position:relative}.turnbar{--tb-st-lines:1;--tb-msg-lines:2;--tb-st-rt:0px;--tb-rt:0px}.turnbar .message{font-size:16px;line-height:1.75}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field{display:flex;flex-direction:column;gap:6px}.field select,.field input{min-height:44px;width:100%;font:inherit;background:var(--surface);color:var(--ink);border:2px solid var(--line-strong);border-radius:6px;padding:8px}.hint{font-size:14px;color:var(--ink-sub);line-height:1.6}.actions,.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.actions .btn{flex:1}.toolbar .btn{font-size:17px}.board-viewport{overflow-x:auto;max-width:100%;padding:8px 4px;overscroll-behavior-x:contain}.board-grid{display:grid;grid-template-columns:repeat(var(--columns),48px);gap:4px;width:max-content;margin:0 auto;padding:4px;background:var(--surface);border:1px solid var(--line);border-radius:6px;touch-action:pan-x pan-y}.tile{width:48px;height:48px;padding:0;border:2px solid transparent;border-radius:4px;cursor:pointer;background:var(--tile);box-shadow:0 1px 1px rgba(0,0,0,.25);color:#fff}.tile svg{display:block;width:100%;height:100%;fill:currentColor;pointer-events:none}.tile[data-color="0"]{--tile:var(--p-red)}.tile[data-color="1"]{--tile:var(--p-blue)}.tile[data-color="2"]{--tile:var(--p-green)}.tile[data-color="3"]{--tile:var(--p-yellow);color:#1F2328}.tile[data-color="4"]{--tile:#7654A5}.tile.empty{background:var(--bg);box-shadow:none;cursor:default}.tile.selected{border-color:var(--ink);outline:2px solid var(--surface);outline-offset:-5px}.tile.cursor:focus-visible{outline:3px solid var(--accent);outline-offset:1px}.tile.selected svg{transform:scale(.8)}.tile.pop{animation:pick .16s ease-out}@keyframes pick{from{transform:scale(.85)}to{transform:scale(1)}}#selection{min-height:72px;padding:8px 0;font-size:16px;line-height:1.75}#result{border:1px solid var(--line);border-radius:6px;padding:16px;margin-top:16px}#result h2{margin-top:0}#board-number{font-size:14px;color:var(--ink-sub)}#legend{display:flex;justify-content:center;gap:12px;margin:8px 0}#legend svg{width:24px;height:24px;fill:currentColor}.legend-item{display:flex;align-items:center;gap:4px;font-size:14px}.article{max-width:800px;margin:auto}.howto img{max-width:100%;height:auto}.ad-gap{height:150px}#custom{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}#custom[hidden]{display:none}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line)}@media(max-width:420px){.stage{padding:8px}.actions{display:grid;grid-template-columns:1fr 1fr}.actions .btn{min-height:44px}.board-grid{grid-template-columns:repeat(var(--columns),44px)}.tile{width:44px;height:44px}.toolbar .btn{flex:1}.turnbar{--tb-msg-lines:2}#legend{gap:8px}}@media(min-width:641px){.turnbar{--tb-msg-lines:1}}@media(prefers-reduced-motion:reduce){.tile.pop{animation:none}}:root:lang(ja) .turnbar{--tb-rt:11px;--tb-st-rt:11px}
:lang(en) .toolbar .btn{overflow-wrap:anywhere;min-width:0}@media(max-width:420px){.toolbar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}}
.same-quality{margin:16px auto;padding:12px}.same-quality .turnbar .message{font-size:15px;line-height:24px}.same-quality .turnbar{--tb-msg-lines:2}.same-quality .board-viewport{padding:4px 0}.same-quality .board-grid{position:relative}.same-quality #selection{min-height:36px;padding:4px 0;display:flex;align-items:center;gap:8px;line-height:1.4;font-size:16px}.same-selected-symbol{display:inline-flex;color:var(--ink);width:32px;height:32px;flex-shrink:0}.same-selected-symbol svg{fill:currentColor}.same-points{margin-left:auto;color:var(--ok)}.same-main{margin:0 0 8px}.same-confirm{display:flex;gap:8px}.same-confirm #remove{flex:1;min-width:120px}.same-confirm .btn{min-height:44px}.same-confirm #cancel,.same-confirm #undo{padding-inline:12px}#same-tools,#same-info{border-top:1px solid var(--line);margin-top:8px;font-size:14px}#same-tools summary,#same-info summary{cursor:pointer;padding:10px 4px;min-height:44px;font-weight:600}#same-tools summary:focus-visible,#same-info summary:focus-visible{outline:2px solid var(--accent)}.same-tools-body{display:flex;gap:8px;flex-wrap:wrap;padding:0 0 8px}.same-tools-body .btn{font-size:16px}#same-info #board-number{margin:8px 0}#same-info #legend{justify-content:flex-start}#setup .field select,#setup .field input{font-size:16px}.same-quality #result{margin:8px 0;padding:12px;font-size:16px}.same-quality #result h2{font-size:20px;margin-bottom:8px}.same-quality #result p{margin:8px 0}.same-quality #result .actions{margin-top:8px}.same-motion-layer{position:absolute;inset:0;pointer-events:none;z-index:2}.same-motion-layer>.tile{position:absolute;margin:0;pointer-events:none}.board-grid.motion-active>.tile{visibility:hidden}.same-quality .tile.selected{border-width:3px}.same-quality .tile.selected svg{transform:scale(.8)}.howto{max-width:390px;margin-inline:auto}.guide-picture{position:relative}.guide-picture img{display:block;width:100%;height:auto}.guide-picture>svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.howto figcaption{font-size:16px;line-height:1.6;margin-top:8px}@media(max-width:420px){.same-quality{padding:8px}.same-confirm .btn{font-size:16px}.same-confirm #cancel,.same-confirm #undo{padding-inline:8px}.same-quality .form-grid{grid-template-columns:1fr}.same-tools-body{display:grid;grid-template-columns:1fr 1fr}.same-tools-body .btn{min-width:0;overflow-wrap:anywhere}.same-quality .turnbar .message{font-size:14px}.same-quality #legend{gap:10px}.same-quality #result .actions{display:flex;flex-wrap:wrap}.same-quality #result .actions .btn{min-width:140px}}

.same-quality[data-state="clear"] .board-viewport{display:none}