:root{--bg-0: #070b16;--bg: #0b1020;--surface: #131a30;--surface-2: #1a2342;--surface-3: #222c52;--text: #eef1ff;--muted: #9aa3c4;--border: #26304f;--border-strong: #35406a;--accent: #8b5cf6;--accent-strong: #a78bfa;--accent-contrast: #ffffff;--accent-2: #ec4899;--accent-3: #10b981;--danger: #f87171;--success: #34d399;--warn: #fbbf24;--ring: rgba(139, 92, 246, .45);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--text-xs: .72rem;--text-sm: .85rem;--text-base: 1rem;--text-lg: 1.15rem;--text-xl: 1.85rem;--radius-xs: 8px;--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-pill: 999px;--radius: var(--radius-md);--shadow: 0 1px 2px rgba(2, 6, 18, .5);--shadow-2: 0 14px 34px rgba(2, 6, 18, .55);--shadow-glow: 0 0 0 1px rgba(139, 92, 246, .25), 0 12px 32px rgba(139, 92, 246, .18);--motion-fast: .12s;--motion-base: .2s;--motion-slow: .32s;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:radial-gradient(1100px 320px at 12% -80px,rgba(139,92,246,.16),transparent 65%),radial-gradient(900px 300px at 88% -60px,rgba(236,72,153,.1),transparent 60%),var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}a{color:var(--accent-strong)}a:hover{color:var(--accent)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.prose{display:grid;gap:var(--space-2)}.prose a{font-weight:600}.state{display:grid;gap:var(--space-2);padding:var(--space-5) var(--space-4);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);text-align:center}.state-title{margin:0;font-size:var(--text-lg);font-weight:800}.state-body{margin:0;color:var(--muted);font-size:var(--text-sm)}.state-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--space-2)}.state-error{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 7%,var(--surface))}.score{display:inline-flex;align-items:baseline;gap:var(--space-1);font-variant-numeric:tabular-nums}.score-value{font-size:clamp(1.8rem,7vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1}.score-max{color:var(--muted);font-weight:700}.score-win .score-value{color:var(--success)}.score-loss .score-value{color:var(--danger)}.pill{display:inline-flex;align-items:center;gap:6px;min-height:22px;padding:3px 9px;border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface-2);color:var(--muted);font-size:var(--text-xs);font-weight:700;letter-spacing:.03em;white-space:nowrap}.pill-accent{border-color:color-mix(in srgb,var(--accent) 40%,var(--border));background:color-mix(in srgb,var(--accent) 9%,var(--surface));color:var(--accent-strong)}.progress{display:grid;gap:6px}.progress-track{height:10px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--surface-2);overflow:hidden}.progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),var(--accent-strong));transition:width .3s ease}.play-actions{display:grid;gap:var(--space-3)}.app{max-width:1240px;margin:0 auto;padding:0 16px calc(96px + env(safe-area-inset-bottom));min-height:100dvh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 4px;margin:0 -4px;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.header-brand-group{display:inline-flex;align-items:center;gap:10px;min-width:0}.brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--text)}.brand-mark{width:14px;height:14px;border-radius:4px;background:var(--accent);box-shadow:inset 0 0 0 3px var(--bg)}.brand-name{font-weight:700;letter-spacing:-.01em}.beta-badge{display:inline-flex;align-items:center;min-height:22px;padding:3px 7px;border:1px solid color-mix(in srgb,var(--accent) 38%,var(--border));border-radius:999px;background:color-mix(in srgb,var(--accent) 9%,var(--surface));color:var(--muted);font-size:.66rem;font-weight:700;letter-spacing:.035em;white-space:nowrap}.header-link{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;color:var(--muted);text-decoration:none;font-weight:600;font-size:.9rem}.header-link:hover{color:var(--text)}.app-main{flex:1;width:100%;max-width:100%;padding-top:16px;min-width:0}@media(min-width:900px){.app{padding-left:24px;padding-right:24px}}.app-footer{display:grid;justify-items:center;gap:10px;padding-top:28px;color:var(--muted);font-size:.8rem;text-align:center}.feedback-trigger{display:inline-flex;align-items:center;min-height:44px;padding:0 6px;border:0;background:transparent;color:var(--accent-strong);font:inherit;font-weight:700;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.feedback-panel{width:min(100%,520px);display:grid;gap:14px;padding:16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);text-align:left;box-shadow:var(--shadow)}.feedback-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.feedback-head p{margin:4px 0 0}.feedback-close{width:44px;height:44px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);color:var(--text);font-size:1.25rem;line-height:1;cursor:pointer}.feedback-form{display:grid;gap:12px}.feedback-form label{display:grid;gap:6px;font-weight:700;font-size:.82rem}.feedback-form input,.feedback-form select,.feedback-form textarea{width:100%;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);font:inherit;padding:10px 12px}.feedback-form textarea{resize:vertical;min-height:104px}.feedback-success{display:grid;gap:10px;justify-items:start;padding:10px 0}.stack{display:flex;flex-direction:column;gap:18px}.stack-tight{display:flex;flex-direction:column;gap:10px}.page-head{display:flex;flex-direction:column;gap:4px}.eyebrow{margin:0;color:var(--muted);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.page-title{margin:0;font-size:1.85rem;line-height:1.15;letter-spacing:-.02em}.page-title.compact{font-size:1.35rem}.lede{margin:0;color:var(--muted)}.muted{color:var(--muted);margin:0}.muted.small,.small{font-size:.85rem}.note{margin:0;padding:12px 14px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);color:var(--text)}.field{display:flex;flex-direction:column;gap:6px}.field-label{font-size:.8rem;font-weight:600;color:var(--muted)}.input{min-height:48px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:1rem;font-family:inherit}.actions{display:flex;flex-direction:column;gap:10px}.actions-inline{flex-direction:row;flex-wrap:wrap}.actions-inline .btn{flex:1 1 140px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:var(--radius-sm);border:1px solid transparent;background:var(--surface);color:var(--text);font-family:inherit;font-size:1rem;font-weight:600;text-decoration:none;cursor:pointer;transition:transform .12s ease,background .12s ease,border-color .12s ease,opacity .12s ease}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--accent-contrast)}.btn-primary:hover:not(:disabled){background:var(--accent-strong)}.btn-secondary{background:var(--surface);border-color:var(--border);box-shadow:var(--shadow)}.btn-secondary:hover:not(:disabled){border-color:var(--muted)}.btn-large{width:100%;min-height:56px;font-size:1.05rem}.text-link{color:var(--accent);font-weight:600;text-align:center;text-decoration:none}.text-link:hover{text-decoration:underline}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}.card-title{margin:0;font-size:1.1rem}.daily-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.daily-banner-score{margin:2px 0 0;font-size:2rem;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.day-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;counter-reset:none}.day-item{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.day-item-done{background:var(--surface-2)}.day-index{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--surface-2);border:1px solid var(--border);font-weight:700;font-size:.9rem;flex:0 0 auto}.day-item-done .day-index{background:var(--accent);color:var(--accent-contrast);border-color:transparent}.day-copy{flex:1;min-width:0}.day-title{margin:0;font-weight:600}.day-blurb{margin:1px 0 0;color:var(--muted);font-size:.85rem}.day-meta{flex:0 0 auto;text-align:right}.day-points{font-weight:700;font-variant-numeric:tabular-nums;color:var(--accent)}.day-status{font-size:.8rem;color:var(--muted)}.player{display:flex;flex-direction:column;gap:18px}.player-head{display:flex;flex-direction:column;gap:4px}.player-status{text-align:center}.countdown{position:relative;height:30px}.countdown:before{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border)}.countdown-bar{position:absolute;left:0;bottom:0;height:8px;border-radius:999px;background:var(--accent);transition:width .25s linear}.countdown-bar-low{background:var(--danger)}.countdown-text{position:absolute;right:0;top:0;font-size:.8rem;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}.result-summary{display:flex;flex-direction:column;gap:2px;padding-bottom:4px}.result-points{font-size:2.6rem;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.result-points-max{font-size:1rem;font-weight:600;color:var(--muted);margin-left:4px}.result-headline{margin:0;font-size:1.2rem}.odd-grid{display:grid;gap:6px;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.odd-tile{display:grid;place-items:center;aspect-ratio:1 / 1;padding:0;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);cursor:pointer;transition:transform .12s ease,border-color .12s ease}.odd-tile:disabled{cursor:default}.odd-tile-picked{border-color:var(--accent);transform:scale(.94)}.odd-tile-reveal{outline:3px solid var(--accent);outline-offset:-1px}.odd-tile-wrong{outline:3px solid var(--danger);outline-offset:-1px}.odd-shape{width:62%;height:62%}.odd-glyph{width:78%;height:78%;display:block}.odd-shape-circle{border-radius:50%}.odd-shape-square{border-radius:5px}.odd-shape-diamond{width:50%;height:50%;border-radius:5px;transform:rotate(45deg)}.sequence{display:flex;flex-direction:column;gap:20px}.sequence-terms{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.sequence-term{display:inline-flex;align-items:center;justify-content:center;min-width:52px;min-height:52px;padding:0 12px;border-radius:var(--radius-sm);background:var(--surface);border:1px solid var(--border);font-size:1.15rem;font-weight:700;font-variant-numeric:tabular-nums;box-shadow:var(--shadow)}.sequence-term-next{border-style:dashed;border-color:var(--accent);color:var(--accent)}.sequence-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.sequence-option{min-height:58px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-family:inherit;font-size:1.2rem;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer;transition:border-color .12s ease,transform .12s ease}.sequence-option:hover:not(:disabled){border-color:var(--muted)}.sequence-option:active:not(:disabled){transform:translateY(1px)}.sequence-option:disabled{cursor:default}.sequence-option-correct{border-color:var(--success);box-shadow:inset 0 0 0 2px var(--success)}.sequence-option-wrong{border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.estimation{display:flex;flex-direction:column;gap:14px}.dot-field{aspect-ratio:1 / 1;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.dot-field svg{display:block;width:100%;height:100%}.dot{fill:#e5e7eb}.dot-decoy{fill:none;stroke:#e5e7eb;stroke-width:1.4}.estimation-label{font-weight:600}.estimation-controls{display:flex;gap:10px}.estimation-input{flex:1;min-height:52px;padding:0 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:1.3rem;font-weight:700;font-variant-numeric:tabular-nums;font-family:inherit;min-width:0}.estimation-controls .btn{flex:0 0 auto;min-width:110px}.estimation-reveal{margin:0;color:var(--muted)}.result-hero{display:flex;flex-direction:column;gap:4px;padding:22px 20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.hero-score{margin:2px 0 0;font-size:3rem;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.standing{margin:4px 0 0;color:var(--muted)}.standing-block{display:flex;flex-direction:column;gap:2px;margin-top:4px}.standing strong{color:var(--text)}.breakdown{list-style:none;margin:0;padding:0;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden}.breakdown-row{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}.breakdown-row:last-child{border-bottom:none}.breakdown-title{font-weight:600}.breakdown-points{font-weight:700;font-variant-numeric:tabular-nums}.challenge-card{margin-top:4px}.link-box{display:flex;flex-direction:column;gap:8px;padding:12px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border)}.link-value{word-break:break-all;font-size:.85rem}.compare-card{padding:18px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}.compare-line{margin:0;font-size:1.3rem;font-weight:700}.compare-scores{display:flex;gap:24px}.compare-score{margin:0;font-size:1.8rem;font-weight:700;font-variant-numeric:tabular-nums}.muted-score{color:var(--muted)}.play-section{display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.play-section-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.play-section-title{margin:0;font-size:1.15rem;letter-spacing:-.01em}.play-section-blurb{margin:0;color:var(--muted);font-size:.9rem}.badge{flex:0 0 auto;display:inline-flex;align-items:center;min-height:24px;padding:3px 10px;border-radius:999px;border:1px solid var(--border);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.badge-ranked{color:var(--accent-strong);border-color:color-mix(in srgb,var(--accent) 45%,var(--border));background:color-mix(in srgb,var(--accent) 10%,var(--surface))}.badge-practice{color:var(--muted);background:var(--surface-2)}.skill-categories{display:flex;flex-direction:column;gap:18px}.skill-category{display:flex;flex-direction:column;gap:10px}.skill-category-head{display:flex;flex-direction:column;gap:1px}.skill-category-title{margin:0;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-strong)}.skill-category-blurb{margin:0;color:var(--muted);font-size:.85rem}.skill-list{display:flex;flex-direction:column;gap:10px}.skill-button{display:flex;flex-direction:column;gap:2px;text-align:left;padding:13px 16px;min-height:64px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);color:var(--text);font-family:inherit;cursor:pointer;transition:border-color .12s ease,background .12s ease}.skill-button:hover{border-color:var(--muted);background:var(--surface)}.skill-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.skill-title{font-weight:700;font-size:1rem}.skill-time{flex:0 0 auto;color:var(--muted);font-size:.78rem;font-weight:600;font-variant-numeric:tabular-nums}.skill-blurb{color:var(--muted);font-size:.85rem}@media(prefers-reduced-motion:reduce){*{transition-duration:.01ms!important;animation-duration:.01ms!important}}.lab-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent;overscroll-behavior-x:contain}.lab-tabs::-webkit-scrollbar{height:6px}.lab-tabs::-webkit-scrollbar-thumb{border-radius:999px;background:var(--border-strong)}.lab-tabs::-webkit-scrollbar-track{background:transparent}.lab-tab{scroll-snap-align:start}.lab-tab{flex:0 0 auto;display:flex;flex-direction:column;gap:1px;text-align:left;padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-family:inherit;cursor:pointer}.lab-tab-active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.lab-tab-label{font-weight:700;font-size:.92rem}.lab-tab-blurb{font-size:.72rem;color:var(--muted)}.lab-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.lab-seg{display:inline-flex;border:1px solid var(--border);border-radius:10px;overflow:hidden}.lab-seg:focus-within{outline:2px solid var(--accent);outline-offset:2px}.lab-seg-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;background:var(--surface);border:0;color:var(--muted);font-family:inherit;font-weight:600;text-transform:capitalize;cursor:pointer;touch-action:manipulation}.lab-seg-active{background:var(--accent);color:var(--accent-contrast)}.lab-stage{display:flex;flex-direction:column}.lab-game{display:flex;flex-direction:column;gap:16px}.lab-round-head{display:flex;flex-direction:column;gap:6px}.lab-round-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.lab-round-title{font-weight:700;font-size:1.05rem}.lab-instruction{margin:0;color:var(--muted)}.lab-round-progress{display:flex;align-items:center;gap:10px}.lab-dots{display:flex;gap:5px}.lab-dot{width:8px;height:8px;border-radius:50%;background:var(--border);transition:transform .12s ease,background .12s ease}.lab-dot-done{background:var(--accent)}.lab-dot-active{background:var(--accent);transform:scale(1.4)}.lab-round-count{font-size:.78rem;color:var(--muted)}.lab-tier{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:3px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);color:var(--muted)}.lab-tier-tutorial{color:var(--accent-3);border-color:color-mix(in srgb,var(--accent-3) 45%,var(--border))}.lab-tier-stretch{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,var(--border))}.lab-timer{position:relative;height:20px;display:flex;align-items:center}.lab-timer:before{content:"";position:absolute;left:0;right:0;top:50%;margin-top:-3px;height:6px;border-radius:999px;background:var(--surface-2)}.lab-timer-fill{position:absolute;left:0;top:50%;margin-top:-3px;height:6px;width:100%;background:var(--accent);border-radius:999px;transform-origin:left center;transition:transform .12s linear}.lab-timer-urgent .lab-timer-fill{background:var(--danger)}.lab-timer-seconds{position:absolute;right:0;top:-2px;font-size:.72rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted)}.lab-resolved .lab-hunt-tile:not(.lab-hunt-answer):not(.lab-hunt-wrong){opacity:.4}.lab-options.lab-resolved .lab-option:not(.lab-option-correct):not(.lab-option-wrong){opacity:.55}.lab-hunt-grid{display:grid;gap:6px;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.lab-hunt-5,.lab-hunt-6,.lab-hunt-7{gap:4px}.lab-hunt-tile{display:grid;place-items:center;aspect-ratio:1 / 1;padding:0;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);cursor:pointer;touch-action:manipulation;transition:transform .1s ease,border-color .1s ease}.lab-hunt-tile:disabled{cursor:default}.lab-hunt-tile:not(:disabled):active{transform:scale(.93)}.lab-hunt-answer{outline:3px solid var(--accent);outline-offset:-1px}.lab-hunt-wrong{outline:3px solid var(--danger);outline-offset:-1px}.lab-glyph{width:82%;height:82%}.lab-sequence{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.lab-seq-chip{min-width:48px;min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border-radius:10px;background:var(--surface);border:1px solid var(--border);font-weight:700;font-variant-numeric:tabular-nums;box-shadow:var(--shadow)}.lab-seq-unknown{border-style:dashed;border-color:var(--accent);color:var(--accent)}.lab-classify-prompt{margin:0;text-align:center;font-size:1.15rem;font-weight:700}.lab-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.lab-option{min-height:56px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-family:inherit;font-size:1.15rem;font-weight:700;font-variant-numeric:tabular-nums;cursor:pointer;touch-action:manipulation}.lab-option:disabled{cursor:default}.lab-option-correct{border-color:var(--success);box-shadow:inset 0 0 0 2px var(--success)}.lab-option-wrong{border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.lab-memory-grid{display:grid;gap:clamp(3px,1.4vw,6px);padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.lab-memory-cell{aspect-ratio:1 / 1;border-radius:8px;border:1px solid var(--border);background:var(--surface-2);cursor:pointer;touch-action:manipulation}.lab-memory-cell:disabled{cursor:default}.lab-memory-target{background:var(--accent);border-color:transparent}.lab-memory-selected{background:var(--accent);border-color:var(--accent)}.lab-memory-wrong{background:var(--surface);border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.lab-memory-safe{background:var(--surface-2);border-color:var(--success);box-shadow:inset 0 0 0 2px var(--success)}.lab-flash-field{aspect-ratio:1 / 1;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:grid;place-items:center}.lab-flash-svg{width:100%;height:100%;display:block}.lab-flash-svg circle,.lab-flash-svg rect{fill:#e2e8f0}.lab-flash-divider{stroke:var(--border);stroke-width:.5;stroke-dasharray:2 2}.lab-flash-hidden{color:var(--muted);font-weight:600}.lab-slider-label{font-weight:600}.lab-slider{width:100%;accent-color:var(--accent)}.lab-slider-touch{min-height:44px}.lab-compare-buttons{display:flex;gap:10px}.lab-compare-buttons .btn{flex:1 1 0}.lab-actions{display:flex;flex-direction:column;gap:10px}.lab-feedback{display:flex;flex-direction:column;gap:2px;padding:12px 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:0;min-width:0;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-conflict{box-shadow:inset 0 0 0 2px var(--danger)}.lab-sudoku-conflict .lab-sudoku-value,.lab-sudoku-conflict .lab-sudoku-note{color:var(--danger)}.lab-sudoku-match{background:color-mix(in srgb,var(--accent) 22%,var(--surface-2))}.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:.58em;font-weight:600;color:var(--muted);line-height:1}@media(max-width:420px){.lab-sudoku-board{padding:3px;gap:1px}}.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}.profile-avatar-img{object-fit:cover;background:var(--surface-2)}.stat-rows{list-style:none;margin:0;padding:0;display:grid;gap:8px}.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:8px;border-bottom:1px dashed var(--border)}.stat-row:last-child{padding-bottom:0;border-bottom:none}.stat-row strong{font-variant-numeric:tabular-nums}.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)}.page-narrow{width:min(100%,760px);margin:0 auto;min-width:0}.page-wide{width:100%;min-width:0}.brand-mark{width:18px;height:18px;border-radius:6px;background:linear-gradient(135deg,var(--accent) 10%,var(--accent-2) 90%);box-shadow:inset 0 0 0 3px var(--bg)}.header-nav-list{display:inline-flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}.header-nav-list .header-link{padding:0 10px;border-radius:var(--radius-sm);min-height:40px}.header-link-active{color:var(--text);background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--border)}.header-cta{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:var(--radius-sm);background:var(--accent);color:var(--accent-contrast);font-weight:700;font-size:.85rem;text-decoration:none;white-space:nowrap}.header-cta:hover{color:var(--accent-contrast);background:var(--accent-strong)}@media(max-width:899px){.header-nav-list{display:none}}@media(max-width:380px){.header-cta{display:none}}@media(max-width:480px){.beta-badge{display:none}}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:50;display:grid;grid-template-columns:repeat(auto-fit,minmax(56px,1fr));padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--border)}.mobile-nav-link{display:flex;flex-direction:column;align-items:center;gap:2px;min-height:52px;justify-content:center;border-radius:var(--radius-sm);color:var(--muted);text-decoration:none;font-size:.68rem;font-weight:700;letter-spacing:.02em}.mobile-nav-icon{font-size:1.05rem;line-height:1}.mobile-nav-link-active{color:var(--text);background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--border)}@media(min-width:900px){.mobile-nav{display:none}.app{padding-bottom:32px}}.sr-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:start;width:100%}.sr-content{min-width:0;width:min(100%,780px);margin:0 auto;display:flex;flex-direction:column;gap:18px}.sr-content-wide{width:100%;margin:0}.sr-rail{display:none}@media(min-width:1200px){.sr-layout-has-rails{grid-template-columns:172px minmax(0,1fr) 172px}.sr-rail{display:flex;flex-direction:column;align-items:center;gap:16px;position:sticky;top:76px;max-height:calc(100dvh - 96px);overflow-y:auto}}@media(min-width:1700px){.sr-layout-has-rails{grid-template-columns:312px minmax(0,1fr) 312px}}.ad-slot{width:160px;height:600px;display:flex;flex-direction:column;gap:6px;padding:8px;border:1px dashed var(--border-strong);border-radius:var(--radius-md);background:color-mix(in srgb,var(--surface) 88%,transparent)}.ad-slot[data-ad-slot="300x250"]{width:300px;height:250px}.ad-slot-label{color:var(--muted);font-size:.62rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.ad-slot-body{flex:1;display:grid;place-items:center;border-radius:6px;background:repeating-linear-gradient(135deg,color-mix(in srgb,var(--surface-2) 70%,transparent) 0 10px,transparent 10px 20px);color:var(--muted)}.ad-slot-size{font-size:.72rem;font-variant-numeric:tabular-nums}.section-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0}.section-title{margin:0;font-size:1.05rem;font-weight:800;letter-spacing:-.01em}.section-link{flex:none;font-size:.85rem;font-weight:700;color:var(--accent-strong);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{min-height:44px;display:inline-flex;align-items:center;padding:4px 13px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--surface);color:var(--muted);font:inherit;font-size:.82rem;font-weight:700;cursor:pointer}.chip-active{background:var(--accent);border-color:transparent;color:var(--accent-contrast)}.game-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:12px}@media(min-width:720px){.game-grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}}.game-card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow);overflow:hidden;text-decoration:none;color:var(--text);transition:transform var(--motion-fast) ease,border-color var(--motion-fast) ease,box-shadow var(--motion-fast) ease;min-height:100%}.game-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}.game-art{position:relative;aspect-ratio:16 / 9;display:grid;place-items:center;overflow:hidden;background:var(--surface-2)}.game-art-glyph{font-size:2rem;line-height:1;filter:drop-shadow(0 4px 10px rgba(0,0,0,.4))}.game-art[data-art=logic]{background:linear-gradient(135deg,#312e81,#6d28d9 60%,#a855f7)}.game-art[data-art=memory]{background:linear-gradient(135deg,#064e3b,#059669 60%,#34d399)}.game-art[data-art=perception]{background:linear-gradient(135deg,#831843,#db2777 60%,#f472b6)}.game-art[data-art=strategy]{background:linear-gradient(135deg,#1e1b4b,#7c3aed 60%,#ec4899)}.game-art[data-art=words]{background:linear-gradient(135deg,#0c4a6e,#0284c7 60%,#38bdf8)}.game-art[data-art=geography]{background:linear-gradient(135deg,#052e16,#15803d 60%,#4ade80)}.game-art[data-art=knowledge]{background:linear-gradient(135deg,#451a03,#c2410c 60%,#fb923c)}.game-art[data-art=speed]{background:linear-gradient(135deg,#450a0a,#dc2626 60%,#f87171)}.game-art[data-art=multiplayer]{background:linear-gradient(135deg,#1e1b4b,#4f46e5 55%,#06b6d4)}.game-art-badges{position:absolute;top:8px;left:8px;display:flex;gap:6px}.game-body{display:flex;flex-direction:column;gap:6px;padding:12px 13px 13px}.game-title{margin:0;font-size:.95rem;font-weight:800;letter-spacing:-.01em}.game-meta{margin:0;color:var(--muted);font-size:.76rem;display:flex;flex-wrap:wrap;gap:4px 8px}.game-pb{margin:0;font-size:.76rem;font-weight:700;color:var(--accent-3)}.game-pb-empty{color:var(--muted);font-weight:600}.skill-badge,.pb-badge,.streak-badge,.mp-badge,.new-badge{display:inline-flex;align-items:center;gap:4px;min-height:22px;padding:2px 8px;border-radius:var(--radius-pill);font-size:.66rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}.skill-badge{border:1px solid var(--border-strong);background:#02061273;color:#fff}.pb-badge{border:1px solid color-mix(in srgb,var(--accent-3) 55%,transparent);background:color-mix(in srgb,var(--accent-3) 16%,var(--surface));color:var(--success)}.streak-badge{border:1px solid color-mix(in srgb,var(--warn) 55%,transparent);background:color-mix(in srgb,var(--warn) 14%,var(--surface));color:var(--warn)}.mp-badge{border:1px solid color-mix(in srgb,var(--accent) 55%,transparent);background:color-mix(in srgb,var(--accent) 16%,var(--surface));color:var(--accent-strong)}.new-badge{border:1px solid color-mix(in srgb,var(--accent-2) 55%,transparent);background:color-mix(in srgb,var(--accent-2) 16%,var(--surface));color:var(--accent-2)}.sr-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}@media(min-width:720px){.sr-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}.sr-stat{border:1px solid var(--border);border-radius:var(--radius-md);background:linear-gradient(180deg,var(--surface-2),var(--surface));box-shadow:var(--shadow);padding:13px 14px;display:flex;flex-direction:column;gap:2px;min-width:0}.sr-stat-value{font-size:1.35rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.sr-stat-label{color:var(--muted);font-size:.76rem;font-weight:600}.sr-empty,.sr-loading{border:1px dashed var(--border-strong);border-radius:var(--radius-md);background:var(--surface);padding:22px 18px;display:grid;gap:8px;justify-items:center;text-align:center}.sr-empty-title,.sr-loading-title{margin:0;font-size:1rem;font-weight:800}.sr-skeleton{width:min(100%,420px);height:14px;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--surface-2) 25%,var(--surface-3) 50%,var(--surface-2) 75%);background-size:200% 100%;animation:sr-shimmer 1.4s linear infinite}@keyframes sr-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.sr-result{border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(180deg,var(--surface-2),var(--surface));box-shadow:var(--shadow-glow);padding:20px;display:flex;flex-direction:column;gap:8px}.sr-result-score{font-size:2.4rem;font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1}.today-grid{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);align-items:start}@media(min-width:1024px){.today-grid{grid-template-columns:minmax(0,1fr) 300px}}.circuit-card{border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(180deg,var(--surface-2),var(--surface));box-shadow:var(--shadow-glow);padding:20px;display:flex;flex-direction:column;gap:12px}.circuit-progress{display:flex;align-items:center;gap:10px}.circuit-dots{display:flex;gap:6px}.circuit-dot{width:10px;height:10px;border-radius:50%;background:var(--surface-3);border:1px solid var(--border-strong)}.circuit-dot-done{background:var(--accent-3);border-color:transparent}.circuit-dot-active{background:var(--accent);border-color:transparent;transform:scale(1.25)}.side-panel{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column;gap:10px;min-width:0}.side-panel-title{margin:0;font-size:.95rem;font-weight:800}.featured-card{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}.continue-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2)}.game-shell{display:flex;flex-direction:column;gap:12px}.game-shell-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:linear-gradient(180deg,var(--surface-2),var(--surface));box-shadow:var(--shadow)}.game-shell-id{flex:1 1 220px;min-width:0}.game-shell-title{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin:0;font-size:1.05rem;font-weight:800}.game-shell-sub{margin:2px 0 0;color:var(--muted);font-size:.82rem}.game-shell-badges{display:inline-flex;flex-wrap:wrap;gap:6px}.game-shell-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:8px;min-width:0}.game-shell-actions .lab-toolbar{gap:8px}.lab-seed{font-variant-numeric:tabular-nums;opacity:.75}@media(max-width:640px){.game-shell-actions{flex:1 1 100%;justify-content:space-between}}.sr-focus-frame,.sr-focus-body{display:flex;flex-direction:column;gap:18px;min-width:0}.sr-focus-body:focus{outline:none}.sr-focus-toggle{min-height:40px;padding:6px 12px;gap:6px;font-size:.82rem}.sr-focus-icon{font-size:1rem;line-height:1}.sr-focus-frame.is-focused{position:fixed;inset:0;z-index:90;width:100%;height:100%;margin:0;gap:14px;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;background:radial-gradient(120% 60% at 50% 0%,var(--surface) 0%,var(--bg) 55%,var(--bg-0) 100%);padding:env(safe-area-inset-top) max(12px,env(safe-area-inset-right)) calc(16px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}.sr-focus-frame:fullscreen{background:radial-gradient(120% 60% at 50% 0%,var(--surface) 0%,var(--bg) 55%,var(--bg-0) 100%)}.sr-focus-frame::backdrop{background:var(--bg-0)}.sr-focus-frame.is-focused>.sr-focus-body{width:min(100%,960px);margin:0 auto;gap:12px}.sr-focus-bar{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:10px;width:min(100%,960px);margin:0 auto;padding:10px 0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.sr-focus-title{flex:1 1 auto;min-width:0;font-weight:800;font-size:1rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sr-focus-meta{flex:none;display:inline-flex;gap:6px}.sr-focus-exit{flex:none;min-height:44px;gap:8px}.sr-focus-kbd{display:inline-flex;align-items:center;min-height:20px;padding:0 6px;border:1px solid var(--border-strong);border-radius:5px;font:inherit;font-size:.66rem;font-weight:800;letter-spacing:.04em;color:var(--muted)}@media(hover:none){.sr-focus-kbd{display:none}}@media(max-width:380px){.sr-focus-exit-full{display:none}}.sr-focus-frame.is-focused .game-shell-id{display:none}.sr-focus-frame.is-focused .game-shell-head{justify-content:center;padding:8px 10px}html.sr-focus-active{overflow:hidden}html.sr-focus-active .app-header,html.sr-focus-active .mobile-nav,html.sr-focus-active .app-footer,html.sr-focus-active .sr-rail,html.sr-focus-active .skip-link,html.sr-focus-active [data-focus-hide]{display:none!important}.lab-page{width:min(100%,920px);margin:0 auto}.lab-stage .lab-hunt-grid,.lab-stage .lab-memory-grid,.lab-stage .lab-flash-field{width:min(100%,560px,max(300px,calc(100dvh - 330px)));margin-inline:auto}.sr-focus-frame.is-focused .lab-hunt-grid,.sr-focus-frame.is-focused .lab-memory-grid,.sr-focus-frame.is-focused .lab-flash-field{width:min(100%,680px,max(280px,calc(100dvh - 250px)))}.sr-focus-frame.is-focused .lab-sudoku-board,.sr-focus-frame.is-focused .lab-sudoku-pad{width:min(100%,560px,calc(100dvh - 300px));min-width:min(100%,280px)}@media(min-width:900px)and (min-aspect-ratio:5/4){.sr-focus-frame.is-focused .lab-game-sudoku,.sr-focus-frame.is-focused .block-grid-game{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,330px);grid-template-rows:repeat(6,auto) 1fr;column-gap:24px;row-gap:12px;align-items:start}.sr-focus-frame.is-focused .lab-game-sudoku>*,.sr-focus-frame.is-focused .block-grid-game>*{grid-column:2;min-width:0}.sr-focus-frame.is-focused .lab-game-sudoku>.lab-sudoku-board,.sr-focus-frame.is-focused .block-grid-game>.block-grid-board{grid-column:1;grid-row:1 / -1;justify-self:center;width:min(100%,calc(100dvh - 190px));margin:0}.sr-focus-frame.is-focused .lab-game-sudoku>.lab-sudoku-pad{width:100%}}.sr-focus-frame.is-focused .dr-room{width:100%;margin-left:0}.proto-flag{display:inline-flex;align-items:center;min-height:24px;padding:2px 10px;border-radius:var(--radius-pill);border:1px dashed var(--accent-2);color:var(--accent-2);font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.quiz-options{display:grid;gap:10px}.quiz-option{min-height:52px;text-align:left;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;font-weight:600;cursor:pointer}.quiz-option:disabled{cursor:default}.quiz-option-correct{border-color:var(--success);box-shadow:inset 0 0 0 2px var(--success)}.quiz-option-correct:after{content:" ✓"}.quiz-option-wrong{border-color:var(--danger);box-shadow:inset 0 0 0 2px var(--danger)}.quiz-option-wrong:after{content:" ✗"}.type-race-passage{padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-2);line-height:1.7;font-size:1.02rem}.type-race-passage .typed-good{color:var(--success);border-bottom:2px solid var(--success)}.type-race-passage .typed-bad{color:var(--danger);text-decoration:underline}.type-race-input{width:100%;min-height:52px;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;font-size:max(1rem,16px)}.type-race-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--ring);outline:none}.type-race-passage .typed-current{box-shadow:inset 0 -2px 0 var(--accent-strong);background:color-mix(in srgb,var(--accent) 18%,transparent);border-radius:2px}.type-race-passage{font-size:1.08rem;letter-spacing:.01em;overflow-wrap:anywhere;scroll-margin-top:80px}.type-race-live{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.type-race-live .sr-stat{padding:9px 11px}.type-race-live .sr-stat-value{font-size:1.1rem}.type-race-warn{color:var(--warn);font-weight:600}.quiz-progress{height:6px;border-radius:var(--radius-pill);background:var(--surface-3);overflow:hidden}.quiz-progress>span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width var(--motion-base) ease}.quiz-meta{margin:0;text-transform:capitalize}.quiz-prompt{margin:2px 0 4px;font-size:clamp(1.1rem,2.6vw,1.35rem);line-height:1.3;font-weight:800;letter-spacing:-.01em}.quiz-option{display:flex;align-items:center;gap:12px;transition:border-color var(--motion-fast) ease,background var(--motion-fast) ease}.quiz-option:hover:not(:disabled){border-color:var(--border-strong);background:var(--surface-2)}.quiz-letter{flex:none;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;border:1px solid var(--border-strong);color:var(--muted);font-size:.78rem;font-weight:800}@media(min-width:640px){.quiz-options{grid-template-columns:repeat(2,minmax(0,1fr))}}.quiz-breakdown{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px 14px}.quiz-breakdown li{display:flex;justify-content:space-between;gap:8px;padding:6px 0;border-bottom:1px solid var(--border);font-size:.85rem}.quiz-review-list{margin:8px 0 0;padding-left:18px;display:grid;gap:8px}.quiz-review-prompt{margin:0;font-weight:700}.quiz-review-list .small{margin:2px 0 0}.quiz-draft-note{font-size:.8rem}.lobby-grid{display:grid;gap:10px}.lobby-seats{list-style:none;margin:0;padding:0;display:grid;gap:8px}.lobby-seat{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2)}.lobby-code{font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:.12em;padding:8px 12px;border:1px dashed var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-2)}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);padding:12px 14px}.faq-item summary{font-weight:700;cursor:pointer;min-height:44px;display:flex;align-items:center}img,svg,video,canvas{max-width:100%}pre,code{overflow-wrap:anywhere;white-space:pre-wrap}:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px;border-radius:4px}.skip-link{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 16px;border-radius:var(--radius-sm);background:var(--accent);color:var(--accent-contrast);font-weight:700;text-decoration:none;transition:top var(--motion-fast) ease}.skip-link:focus{top:12px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}.game-card:hover{transform:none}}