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14px;border-radius:12px;border:1px solid var(--border);background:var(--surface-2)}.lab-feedback-title{font-weight:700}.lab-feedback-detail{color:var(--muted);font-size:.85rem}.lab-feedback-good{border-color:var(--success)}.lab-feedback-bad{border-color:var(--danger)}.lab-result{display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.lab-result-score{display:flex;align-items:baseline;gap:6px}.lab-result-points{font-size:2.4rem;font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.lab-result-max{color:var(--muted);font-weight:600}.lab-best{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--border)}.lab-best-badge{align-self:flex-start;font-weight:800;color:var(--success)}.lab-best-line{font-weight:600}.lab-result-headline{margin:0}.lab-breakdown{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.lab-breakdown-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.9rem}.lab-pill{font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:999px;border:1px solid var(--border)}.lab-pill-good{color:var(--success);border-color:var(--success)}.lab-pill-bad{color:var(--danger);border-color:var(--danger)}.lab-change-hidden .lab-hunt-tile{visibility:hidden}.lab-change-empty{background:var(--surface);border-style:dashed;opacity:.55}.lab-sudoku-clock{font-weight:700;font-size:1rem;font-variant-numeric:tabular-nums;color:var(--text)}.lab-sudoku-board{display:grid;gap:2px;width:min(100%,420px);margin:0 auto;padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);touch-action:manipulation}.lab-sudoku-cell{position:relative;display:grid;place-items:center;aspect-ratio:1 / 1;min-height:34px;padding:0;border:1px solid var(--border);border-radius:4px;background:var(--surface-2);color:var(--text);font-family:inherit;font-size:clamp(.95rem,4.6vw,1.35rem);font-weight:600;line-height:1;cursor:pointer;touch-action:manipulation}.lab-sudoku-given{background:var(--surface);font-weight:800}.lab-sudoku-entryed{color:var(--accent-strong)}.lab-sudoku-selected{outline:3px solid var(--accent);outline-offset:-2px}.lab-sudoku-peer{background:color-mix(in srgb,var(--accent) 12%,var(--surface-2))}.lab-sudoku-mistake{color:var(--danger);border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.lab-sudoku-box-right{border-right:2px solid var(--text)}.lab-sudoku-box-bottom{border-bottom:2px solid var(--text)}.lab-sudoku-notes{display:grid;gap:0;width:100%;height:100%;padding:1px}.lab-sudoku-note{display:grid;place-items:center;font-size:.5em;font-weight:600;color:var(--muted);line-height:1}.lab-sudoku-pad{display:grid;gap:8px;width:min(100%,420px);margin:0 auto}.lab-sudoku-key{min-height:48px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-family:inherit;font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer;touch-action:manipulation}.lab-sudoku-key:disabled{opacity:.45;cursor:default}.lab-sudoku-key-note{border-color:var(--accent);color:var(--accent-strong)}.lab-sudoku-check{display:grid}.lab-sudoku-check .btn{width:100%;min-height:52px;font-size:1rem}.lab-sudoku-controls{display:flex;flex-wrap:wrap;gap:8px}.lab-sudoku-controls .btn{flex:1 1 auto;min-height:44px}.lab-sudoku-toggle-on{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.lab-sudoku-solvetime{font-variant-numeric:tabular-nums}.lab-rule-grid{display:grid;gap:clamp(4px,2vw,10px);width:min(100%,420px);margin:0 auto;padding:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.lab-rule-cell{--rule-tile-bg: var(--surface-2);display:grid;place-items:center;aspect-ratio:1 / 1;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--text)}.lab-rule-missing{border-style:dashed;border-color:var(--accent)}.lab-rule-answer{outline:3px solid var(--accent);outline-offset:-2px}.lab-rule-question{font-size:1.6rem;font-weight:800;color:var(--accent)}.lab-rule-glyph{width:74%;height:74%}.lab-rule-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(4px,2vw,10px)}.lab-rule-option{--rule-tile-bg: var(--surface);display:grid;place-items:center;aspect-ratio:1 / 1;min-height:56px;padding:0;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text);cursor:pointer;touch-action:manipulation}.lab-rule-option:disabled{cursor:default}.lab-path-grid{display:grid;gap:clamp(3px,1.4vw,6px);width:min(100%,460px);margin:0 auto;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.lab-path-cell{position:relative;aspect-ratio:1 / 1;min-height:30px;border-radius:8px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;touch-action:manipulation}.lab-path-cell:disabled{cursor:default}.lab-path-step{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}.lab-path-dot:after{content:"";position:absolute;inset:38%;border-radius:50%;background:var(--muted)}.lab-path-picked{outline:3px solid var(--accent);outline-offset:-2px}.lab-path-good{border-color:var(--success);box-shadow:inset 0 0 0 2px var(--success)}.lab-path-bad{border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.lab-path-badge{display:grid;place-items:center;width:100%;height:100%;font-size:clamp(.85rem,3.5vw,1.1rem);font-weight:800;font-variant-numeric:tabular-nums}.lab-path-controls{display:flex;flex-wrap:wrap;gap:8px}.lab-path-controls .btn{flex:1 1 auto;min-height:44px}@media(max-width:360px){.lab-rule-options{grid-template-columns:repeat(2,minmax(0,1fr))}}.header-nav{display:inline-flex;align-items:center;gap:14px}.auth-buttons{display:flex;flex-direction:column;gap:10px}.auth-button{width:100%;min-height:44px}.value-list{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:.95rem}.profile-head{display:flex;align-items:center;gap:14px}.profile-avatar{width:56px;height:56px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-contrast);font-size:1.5rem;font-weight:700;flex:none}.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow)}.stat-value{font-size:1.4rem;font-weight:800;font-variant-numeric:tabular-nums}.stat-label{color:var(--muted);font-size:.78rem}.identity-list{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-direction:column;gap:8px}.identity-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px}.text-link.danger{color:var(--danger)}button.text-link{min-height:44px;padding:10px 4px;background:none;border:none;cursor:pointer}.share-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow)}.share-card-head{display:flex;align-items:center;gap:9px}.share-card-brand{font-weight:700;letter-spacing:-.01em}.share-card-game{margin:0;color:var(--muted);font-size:.85rem}.share-card-score{margin:0;font-size:2.6rem;font-weight:800;font-variant-numeric:tabular-nums;line-height:1}.share-card-percentile{margin:0;color:var(--accent);font-weight:600}.share-card-challenges{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.share-card-challenges li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--border);padding-bottom:6px;font-size:.92rem;overflow-wrap:anywhere}.share-card-challenges li>span:first-child{min-width:0}.share-card-foot{margin-top:10px;font-weight:600;color:var(--muted)}