:root{color-scheme:light;--ink: #171c1a;--paper: #f4f6f2;--surface: #ffffff;--surface-soft: #eef3ef;--surface-warm: #fbfaf4;--line: #d4ddd7;--line-strong: #aab8b1;--muted: #59645e;--text: #171c1a;--text-invert: #ffffff;--teal: #147c72;--teal-dark: #0d5f56;--coral: #d85648;--coral-dark: #a83c32;--gold: #e4b521;--blue: #315f87;--shadow: 0 18px 44px rgba(24, 35, 31, .14);--tint-teal: #e9f6f3;--tint-coral: #fff5f3;--tint-coral-strong: #ffe9e6;--line-coral: #efbeb8;--tint-gold: #fff4c7;--on-tint-gold: #664b00;--workspace-bg: #edf1ee;--workspace-grid: rgba(23, 28, 26, .035);--focus-ring: rgba(20, 124, 114, .2)}:root[data-theme=dark]{color-scheme:dark;--ink: #e9efec;--paper: #101615;--surface: #182220;--surface-soft: #212d2a;--surface-warm: #151d1a;--line: #2f3c38;--line-strong: #5f706a;--muted: #a2b3ac;--text: #e9efec;--text-invert: #0e1413;--teal: #4ecbb8;--teal-dark: #79e0d0;--coral: #ff7f6b;--coral-dark: #ffa294;--gold: #f0c94a;--blue: #8ab6e2;--shadow: 0 18px 44px rgba(0, 0, 0, .6);--tint-teal: #12312c;--tint-coral: #37201c;--tint-coral-strong: #4a2721;--line-coral: #6d3a30;--tint-gold: #3b2f0c;--on-tint-gold: #f2d47e;--workspace-bg: #0a100f;--workspace-grid: rgba(255, 255, 255, .04);--focus-ring: rgba(78, 203, 184, .55)}*{box-sizing:border-box;letter-spacing:0}html,body{margin:0}body{min-width:320px;min-height:100dvh;display:flex;flex-direction:column;background:var(--paper);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;text-rendering:geometricPrecision}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}header.site{min-height:58px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--surface);display:flex;align-items:center;gap:16px}header.site h1,header.site .brand{margin:0;color:var(--ink);font-size:17px;font-weight:850;text-transform:uppercase}header.site .brand{display:inline-flex;align-items:center;gap:8px}.brand-logo{display:block;height:1.6em;width:auto}.brand-foot{display:inline-flex;align-items:center;gap:7px;color:var(--ink);font-weight:800}header.site .sub{color:var(--muted);font-size:13px}header.site nav{margin-left:auto;display:flex;align-items:center;flex-wrap:wrap;gap:8px}header.site nav a{min-height:34px;padding:8px 10px;border-radius:8px;color:var(--muted);font-size:13px;font-weight:700}header.site nav a:hover{background:var(--surface-soft);color:var(--ink);text-decoration:none}.theme-switch{min-width:0;min-height:34px;position:relative;margin:0;padding:2px;border:1px solid var(--line);border-radius:8px;background:var(--surface-soft);display:inline-flex;align-items:center;gap:2px}.theme-switch input{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip-path:inset(50%)}.theme-switch label{min-height:28px;display:inline-flex;align-items:center;border-radius:6px;padding:4px 8px;color:var(--muted);font-size:12px;font-weight:700;white-space:nowrap;cursor:pointer}.theme-switch label:hover{color:var(--ink)}.theme-switch label:has(input:checked){background:var(--surface);color:var(--ink)}.theme-switch label:has(input:focus-visible){outline:3px solid var(--focus-ring);outline-offset:1px}footer.site{border-top:1px solid var(--line);background:var(--surface);padding:18px 24px;display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}footer.site nav{display:flex;gap:14px;margin-left:auto}.page-body{flex:1 0 auto}.tool{background:var(--paper);display:flex;flex-direction:column}.privacy,.status-pill{min-height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--tint-gold);color:var(--on-tint-gold);padding:5px 10px;font-size:12px;font-weight:800;white-space:nowrap}.status-pill{background:var(--tint-teal);color:var(--teal-dark)}.toolgrid{width:100vw;max-width:100%;min-height:calc(100vh - 58px);min-height:calc(100dvh - 58px);display:grid;grid-template-columns:minmax(300px,348px) minmax(0,1fr)}.bar{border-right:1px solid var(--line);background:var(--paper);padding:16px;display:flex;flex-direction:column;gap:12px}.control-section,.mode-panel{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:12px;display:flex;flex-direction:column;gap:10px}.section-title{min-height:22px;display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--ink);font-size:13px;font-weight:850}.lbl{display:block;color:var(--muted);font-size:12px;font-weight:750;margin-bottom:5px}.hint{margin:0;color:var(--muted);font-size:13px;line-height:1.5}button,.fakebtn{min-height:38px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--ink);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-size:13px;font-weight:800;padding:8px 12px;text-align:center;transition:background .14s ease,border-color .14s ease,color .14s ease,box-shadow .14s ease;user-select:none}button:hover,.fakebtn:hover{border-color:var(--teal);background:var(--tint-teal);color:var(--teal-dark);text-decoration:none}button:focus-visible,.fakebtn:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}button.primary{border-color:var(--teal);background:var(--teal);color:var(--text-invert)}button.primary:hover{background:var(--teal-dark);color:var(--text-invert)}button.warn{border-color:var(--line-coral);background:var(--tint-coral);color:var(--coral-dark)}button.warn:hover{border-color:var(--coral);background:var(--tint-coral-strong);color:var(--coral-dark)}button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.modes{width:100%;min-height:40px;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden;background:var(--surface-soft)}.modes button{min-width:0;border:0;border-radius:0;background:transparent}.modes button+button{border-left:1px solid var(--line)}.modes button[aria-pressed=true],button.toggle[aria-pressed=true]{background:var(--ink);color:var(--text-invert)}button.full{width:100%}button.mini{min-height:28px;padding:4px 8px;font-size:12px}.button-row,.export-actions,.split-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}input[type=number],input[type=text],select{width:100%;min-height:38px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--ink);font:inherit;font-size:14px;font-weight:650;padding:8px 10px}input[type=number]{text-align:center;font-variant-numeric:tabular-nums}.boxparams{width:100%;flex-direction:column;gap:8px}.quad-fields{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.quad-fields label{min-width:0;display:flex;flex-direction:column;align-items:center;gap:4px}.quad-fields input[type=number]{padding-left:4px;padding-right:4px;text-align:center}.quad-fields span{color:var(--muted);font-size:11px;font-weight:750;line-height:1;text-align:center}.box-name-list{max-height:260px;display:flex;flex-direction:column;gap:6px;overflow:auto;padding-right:2px}.box-name-row{min-width:0;display:grid;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:8px}.box-name-index{width:28px;height:28px;border-radius:999px;background:var(--surface-soft);color:var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:850;font-variant-numeric:tabular-nums}.box-name-row input{min-height:34px;padding:6px 9px;font-size:13px}.box-name-empty{border:1px dashed var(--line-strong);border-radius:8px;color:var(--muted);padding:10px;font-size:13px;line-height:1.45}.count{min-height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface-soft);color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 10px;font-size:13px;font-weight:800}.count b{color:var(--teal-dark);font-variant-numeric:tabular-nums}.workspace{min-width:0;min-height:calc(100vh - 58px);min-height:calc(100dvh - 58px);padding:24px;background:linear-gradient(90deg,var(--workspace-grid) 1px,transparent 1px),linear-gradient(0deg,var(--workspace-grid) 1px,transparent 1px),var(--workspace-bg);background-size:28px 28px;display:flex;align-items:center;justify-content:center;overflow:auto}.stage{max-width:100%;position:relative}canvas{display:block;max-width:100%;height:auto;border:1px solid var(--ink);border-radius:8px;box-shadow:var(--shadow);background:repeating-conic-gradient(#ccd4cf 0% 25%,#f6f8f5 0% 50%) 0 / 18px 18px;cursor:crosshair;touch-action:none}.empty{width:100%;flex:1;align-self:stretch;min-height:430px;border:2px dashed var(--line-strong);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:28px;text-align:center;transition:border-color .12s,background .12s}.empty.drag-over{border-color:var(--teal);background:var(--tint-teal)}.empty-copy strong{display:block;color:var(--ink);font-size:24px;line-height:1.1}.empty-copy p{max-width:380px;margin:8px auto 0;color:var(--muted);font-size:14px;line-height:1.45}.sample-sheet{width:min(100%,260px);aspect-ratio:1;border:1px solid var(--ink);border-radius:8px;background:var(--surface-warm);box-shadow:8px 8px 0 var(--line);display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:12px}.sample-tile{min-width:0;border:1px solid var(--line);border-radius:6px;background:var(--surface);position:relative;overflow:hidden}.sample-tile:after{content:"";position:absolute;inset:24%;border-radius:50%;background:currentColor}.tile-a,.tile-f{color:var(--teal)}.tile-b,.tile-g{color:var(--gold)}.tile-c,.tile-h{color:var(--coral)}.tile-d,.tile-i{color:var(--blue)}.tile-e{color:var(--ink)}.tile-b:after,.tile-h:after{border-radius:5px;transform:rotate(45deg)}.tile-c:after,.tile-g:after{inset:20% 28%;border-radius:3px}kbd{border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:5px;background:var(--surface);color:var(--ink);padding:1px 6px;font-size:12px}.hidden{display:none!important}.hero{padding-bottom:12px;border-bottom:1px solid var(--line)}.hero h1{margin:0 0 6px;color:var(--ink);font-size:15px;line-height:1.3}.hero p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.55}.hero p strong{color:var(--ink)}.hero a{font-weight:700}.kw{color:var(--teal-dark);font-weight:800}.tool-links{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline;justify-content:center;padding:16px 24px;border-top:1px solid var(--line);font-size:13px}.tool-links span{color:var(--muted)}.tool-links a{font-weight:700}.prose{max-width:860px;margin:0 auto;padding:34px 24px 58px}.faq-center{min-height:calc(100dvh - 112px);display:flex;flex-direction:column;justify-content:center}.faq-center .prose h1{text-align:center}.prose h1,.prose h2{margin:40px 0 14px;color:var(--ink);font-size:22px;line-height:1.2}.prose h1:first-child,.prose h2:first-child{margin-top:0}.prose h3{margin:26px 0 8px;color:var(--ink);font-size:17px}.prose a{text-decoration:underline}.prose p,.prose ul,.prose ol{color:var(--muted);font-size:15px;line-height:1.75}.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}details.faq{border:1px solid var(--line);border-radius:8px;margin:10px 0;background:var(--surface);padding:0 16px}details.faq summary{cursor:pointer;padding:14px 0;color:var(--ink);font-size:15px;font-weight:800;list-style:none}details.faq summary::-webkit-details-marker{display:none}details.faq summary:before{content:"+ ";color:var(--teal)}details.faq[open] summary:before{content:"- "}details.faq p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.65}.ad-slot{max-width:980px;margin:18px auto;padding:0 24px}@media(max-width:980px){header.site{padding:0 16px}header.site .sub{display:none}.toolgrid{grid-template-columns:1fr}.bar{border-right:0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.workspace{min-height:calc(100vh - 59px);min-height:calc(100dvh - 59px);padding:18px}}@media(max-width:680px){header.site{min-height:auto;padding:12px 14px;align-items:flex-start;flex-wrap:wrap}header.site nav{width:100%;margin-left:0;gap:6px}.theme-switch label{padding:4px 7px;font-size:11.5px}.bar{grid-template-columns:1fr;padding:12px}.workspace{order:-1}.button-row,.export-actions,.split-fields{grid-template-columns:1fr}.quad-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace{min-height:calc(100vh - 59px);min-height:calc(100dvh - 59px);padding:12px}.empty{min-height:360px;padding:22px 16px}.sample-sheet{width:min(100%,210px)}footer.site{padding:14px}footer.site nav{width:100%;margin-left:0}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}