:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-synthesis:none;text-rendering:optimizelegibility}:root{--bg:oklch(16% .018 255);--panel:oklch(21% .02 255);--panel-2:oklch(25% .022 255);--line:oklch(33% .025 255);--line-soft:oklch(28% .022 255);--text:oklch(94% .012 255);--muted:oklch(68% .025 255);--accent:oklch(70% .15 250);--accent-ink:oklch(20% .05 255);--good:oklch(78% .16 165);--warn:oklch(83% .15 85);--bad:oklch(70% .18 25);--focus:oklch(80% .13 250);--radius:12px}*{box-sizing:border-box}html,body{height:100%;margin:0}#root{min-height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}:where(button,input,select,a):focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:8px}:where(button,input,select):focus:not(:focus-visible){outline:none}.app{grid-template-columns:340px 1fr;height:100vh;display:grid;overflow:hidden}.sidebar{background:var(--panel);border-right:1px solid var(--line);flex-direction:column;gap:20px;padding:22px 20px;display:flex;overflow-y:auto}.brand-row{align-items:flex-start;gap:12px;display:flex}.brand-mark{width:38px;height:38px;color:var(--accent);background:oklch(70% .15 250/.12);border:1px solid oklch(70% .15 250/.3);border-radius:10px;flex-shrink:0;place-items:center;display:grid}.brand-mark svg{width:22px;height:22px}.brand{letter-spacing:-.02em;margin:0 0 4px;font-size:19px;font-weight:800;line-height:1}.brand span{color:var(--accent)}.tagline{color:var(--muted);margin:0;font-size:12.5px;line-height:1.5}.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.panel h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);align-items:center;gap:8px;margin:0 0 14px;font-size:11px;display:flex}.panel .step{background:var(--accent);width:18px;height:18px;color:var(--accent-ink);letter-spacing:0;border-radius:50%;place-items:center;font-size:11px;font-weight:800;display:grid}.row{gap:12px;display:flex}.field{flex-direction:column;flex:1;gap:6px;min-width:0;display:flex}.field-label{color:var(--muted);font-size:11.5px;font-weight:500}.field-input{display:flex;position:relative}.field input,.field select{background:var(--bg);border:1px solid var(--line);color:var(--text);font-variant-numeric:tabular-nums;border-radius:9px;width:100%;padding:10px 11px;font-size:16px;transition:border-color .15s}.field-suffix{color:var(--muted);pointer-events:none;font-size:12px;position:absolute;top:50%;right:11px;transform:translateY(-50%)}.field input:hover,.field select:hover{border-color:var(--line)}.field input:focus,.field 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h2{margin:0;font-size:14px;font-weight:700}.results-sub{color:var(--muted);font-size:12px}.results-strip{-webkit-overflow-scrolling:touch;scrollbar-width:thin;gap:12px;padding-bottom:4px;display:flex;overflow-x:auto}.result-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;flex-shrink:0;width:132px;padding:8px;transition:border-color .15s,transform .15s,box-shadow .15s}.result-card:hover{border-color:var(--muted);transform:translateY(-2px)}.result-card.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.thumb{background:var(--bg);border-radius:9px;height:92px;padding:7px}.result-meta{justify-content:space-between;align-items:center;margin-top:9px;font-size:11px;display:flex}.result-meta .rank{color:var(--accent);font-size:12px;font-weight:800}.pill{font-variant-numeric:tabular-nums;border-radius:999px;padding:2px 7px;font-size:10.5px;font-weight:700}.pill-good{color:var(--good);background:oklch(78% .16 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1fr;gap:10px;display:grid}.stat{background:var(--panel);border:1px solid var(--line);border-radius:11px;flex-direction:column;gap:3px;padding:11px 13px;display:flex}.stat-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-size:10.5px}.stat-value{font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-size:18px;font-weight:700}.stat-hint{color:var(--muted);margin-top:2px;font-size:11px;line-height:1.4}.stat-good .stat-value{color:var(--good)}.stat-warn .stat-value{color:var(--warn)}.stat-bad .stat-value{color:var(--bad)}.jrows{flex-direction:column;gap:7px;display:flex}.jrow{font-variant-numeric:tabular-nums;grid-template-columns:78px 1fr 28px;align-items:center;gap:10px;font-size:12px;display:grid}.jlabel{color:var(--muted);align-items:center;gap:3px;display:flex}.jlabel .dot{border-radius:50%;width:9px;height:9px;display:inline-block}.jlabel .arrow{margin:0 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var(--line);gap:16px;overflow:visible}.content{overflow:visible}.detail{padding:16px;display:block;overflow:visible}.stage{margin-bottom:16px}.stage-canvas{flex:none;height:60vh}.info{overflow:visible}}@media (width>=601px) and (width<=900px){.sidebar{grid-template-columns:1fr 1fr;align-items:start;padding:18px;display:grid}.brand-row,.hint-panel{grid-column:1/-1}}@media (width<=600px){.sidebar{padding:16px}.results{padding:14px 16px 16px}.stage{padding:12px}.stage-canvas{flex:none;height:62vh}.sim-fields{grid-template-columns:1fr 1fr}.seg-btn{padding:11px 6px}.chip{min-height:42px}}.seo{background:var(--panel);border-top:1px solid var(--line);color:var(--text);padding:56px 24px 72px}.seo-inner{max-width:720px;margin:0 auto}.seo h2{letter-spacing:-.01em;margin:0 0 16px;font-size:27px}.seo h3{margin:30px 0 10px;font-size:18px}.seo p{color:var(--muted);margin:0 0 14px;font-size:15px;line-height:1.65}.seo strong{color:var(--text)}.seo ul{color:var(--muted);margin:0 0 14px;padding-left:20px;font-size:15px;line-height:1.75}.faq{margin:8px 0 0}.faq-item{border-top:1px solid var(--line);padding:16px 0}.faq dt{color:var(--text);margin-bottom:6px;font-size:15px;font-weight:700}.faq dd{color:var(--muted);margin:0;font-size:14.5px;line-height:1.6}.seo-foot{border-top:1px solid var(--line);color:var(--muted);margin-top:30px;padding-top:16px;font-size:12.5px}.sim-readout{z-index:2;-webkit-backdrop-filter:blur(4px);border:1px solid var(--line);background:oklch(14% .018 255/.85);border-radius:11px;width:232px;max-width:calc(100% - 24px);padding:11px 13px;position:absolute;bottom:12px;left:12px}.sim-grad{background:linear-gradient(90deg,#285adc,#28bed2,#46c85a,#ebcd28,#dc2828);border-radius:5px;height:9px}.sim-grad-labels{color:var(--muted);justify-content:space-between;margin:4px 0 9px;font-size:10px;display:flex}.sim-rows{grid-template-columns:1fr auto;align-items:baseline;gap:4px 8px;font-size:12px;display:grid}.sim-rows span{color:var(--muted);white-space:nowrap}.sim-rows strong{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.strip-tip-wrap,.pack-term-wrap{pointer-events:none}.pack-term{letter-spacing:.03em;color:#fff;white-space:nowrap;border:1px solid #00000080;border-radius:999px;padding:3px 9px;font-size:11px;font-weight:800;box-shadow:0 3px 10px #00000073}.pack-term-minus{background:#2563eb}.pack-term-plus{background:#dc2626}.strip-tip{-webkit-backdrop-filter:blur(3px);border:1px solid var(--line);min-width:150px;color:var(--text);white-space:nowrap;background:oklch(14% .018 255/.7);border-radius:9px;padding:8px 10px;position:relative;transform:translateY(-72px);box-shadow:0 6px 20px #0006}.strip-tip:before,.strip-tip:after{content:"";border-left:8px solid #0000;border-right:8px solid #0000;width:0;height:0;position:absolute;top:100%;left:50%}.strip-tip:before{border-top:8px solid var(--line);transform:translate(-50%)}.strip-tip:after{border-top:8px solid oklch(14% .018 255/.7);transform:translate(-50%)translateY(-1.5px)}.strip-tip-title{color:var(--accent);font-size:12px;font-weight:600}.strip-tip-cells{color:var(--muted);margin-top:1px;font-size:11px}.strip-tip-rows{grid-template-columns:1fr auto;align-items:baseline;gap:2px 10px;margin-top:6px;font-size:12px;display:grid}.strip-tip-rows span{color:var(--muted)}.strip-tip-rows strong{text-align:right;font-variant-numeric:tabular-nums}.strip-tip-rows strong.hot{color:var(--bad)}.strip-tip-hint{color:var(--muted);margin-top:6px;font-size:11px}.strip-tip-reinforce{border-top:1px solid var(--line);color:#ffb74d;margin-top:8px;padding-top:7px;font-size:11.5px}.strip-tip-reinforce strong{color:#ffd28a}.reinforce-accent{color:#ffb74d}.bg-controls{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:end;gap:10px 16px;display:grid}.rangefield{flex-direction:column;gap:5px;display:flex}.rangefield-head{color:var(--muted);justify-content:space-between;font-size:11.5px;font-weight:500;display:flex}.rangefield-val{color:var(--text);font-variant-numeric:tabular-nums}.rangefield input[type=range]{width:100%;accent-color:var(--accent)}.group-picker{flex-wrap:wrap;gap:6px;display:flex}.gswatch{cursor:pointer;font-variant-numeric:tabular-nums;border:2px solid #0000;border-radius:8px;min-width:34px;height:34px;padding:0 8px;font-size:13px;font-weight:800}.gswatch.active{box-shadow:0 0 0 2px var(--accent);border-color:#fff}.gswatch.erase{background:var(--panel-2);color:var(--muted);border-color:var(--line);font-size:12px}.gswatch.erase.active{color:var(--text);border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.warn-banner{background:color-mix(in oklch, var(--warn) 14%, var(--panel));border:1px solid color-mix(in oklch, var(--warn) 45%, var(--line));border-radius:12px;padding:12px 14px;font-size:13px}.warn-banner strong{color:var(--warn);margin-bottom:6px;display:block}.warn-banner ul{color:var(--text);margin:0;padding-left:18px}.warn-banner li{margin:2px 0}.editor-wrap{flex:1;min-width:0;min-height:0;display:flex;position:relative}.editor-zoom{flex-direction:column;gap:6px;display:flex;position:absolute;top:10px;right:10px}.editor-zoom button{width:30px;height:30px;color:var(--text);border:1px solid var(--line);cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:oklch(18% .018 255/.82);border-radius:8px;place-items:center;font-size:15px;font-weight:700;display:grid}.editor-zoom button:last-child{letter-spacing:.02em;font-size:11px;font-weight:600}.editor-zoom button:hover{border-color:var(--accent);color:var(--accent)}.solving-overlay{z-index:5;border:1px solid var(--line);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:none;background:oklch(16% .018 255/.72);border-radius:9px;place-items:center;width:34px;height:34px;display:grid;position:absolute;top:10px;left:10px}.spinner{border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}.spinner-lg{border-width:3px;width:30px;height:30px;margin:0 auto 14px}@keyframes spin{to{transform:rotate(360deg)}}.toolgroup-hint{max-width:320px;margin:2px 0 8px}