:root{--bg:#f7f5ef;--surface:#fff;--surface-2:#f1efe8;--grid:#d6dee8;--grid-strong:#b5c3d3;--grid-faint:#e8ecef;--rule:#dde2e8;--ink:#14233a;--muted:#5a6b80;--accent:#c2581b;--accent-ink:#fff;--accent-soft:#f6e3d6;--blueprint:#1f5faf;--blueprint-soft:#e1ebf7;--shadow:0 1px 0 #14233a0a, 0 8px 24px -12px #14233a2e;--f-display:"Pixelify Sans", "Silkscreen", ui-monospace, monospace;--f-body:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--f-mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0e1a2b;--surface:#152338;--surface-2:#112033;--grid:#22344d;--grid-strong:#34506f;--grid-faint:#13233a;--rule:#24384f;--ink:#e6edf5;--muted:#93a4b8;--accent:#f08a3e;--accent-ink:#1a0e05;--accent-soft:#3a2616;--blueprint:#5b9be6;--blueprint-soft:#16304f;--shadow:0 1px 0 #0003, 0 10px 28px -14px #0009;color-scheme:dark}}:root[data-theme=dark]{--bg:#0e1a2b;--surface:#152338;--surface-2:#112033;--grid:#22344d;--grid-strong:#34506f;--grid-faint:#13233a;--rule:#24384f;--ink:#e6edf5;--muted:#93a4b8;--accent:#f08a3e;--accent-ink:#1a0e05;--accent-soft:#3a2616;--blueprint:#5b9be6;--blueprint-soft:#16304f;--shadow:0 1px 0 #0003, 0 10px 28px -14px #0009;color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}.content section>*,.intro>*,.group>*{min-width:0}body{background-color:var(--bg);background-image:linear-gradient(var(--grid-faint) 1px, transparent 1px), linear-gradient(90deg, var(--grid-faint) 1px, transparent 1px);color:var(--ink);font:400 16px/1.6 var(--f-body);background-size:24px 24px;margin:0}body:before{content:"";height:env(safe-area-inset-top,0px);z-index:10;background:var(--surface);position:fixed;inset:0 0 auto}.wrap{max-width:1200px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));margin:0 auto}a{color:var(--accent);text-underline-offset:3px}button{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--blueprint);outline-offset:2px}.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums}.px{clip-path:polygon(0 4px,4px 4px,4px 0,calc(100% - 4px) 0,calc(100% - 4px) 4px,100% 4px,100% calc(100% - 4px),calc(100% - 4px) calc(100% - 4px),calc(100% - 4px) 100%,4px 100%,4px calc(100% - 4px),0 calc(100% - 4px))}.site{top:env(safe-area-inset-top,0px);z-index:5;background:var(--surface);border-bottom:1px solid var(--rule);position:sticky}.site .wrap{align-items:center;gap:24px;height:60px;display:flex}.logo{color:var(--ink);font:600 20px/1 var(--f-display);letter-spacing:.5px;flex:none;align-items:center;gap:10px;text-decoration:none;display:flex}.logo svg{display:block}.nav{scrollbar-width:none;flex:1;gap:4px;min-width:0;display:flex;overflow-x:auto}.nav a{color:var(--muted);white-space:nowrap;border-radius:4px;padding:6px 10px;font-size:15px;text-decoration:none}.nav a:hover{color:var(--ink);background:var(--surface-2)}.nav a[aria-current]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--accent);border-radius:0;font-weight:600}.icon-btn{border:1px solid var(--rule);background:var(--surface);cursor:pointer;width:36px;height:36px;color:var(--muted);border-radius:4px;flex:none;place-items:center;display:grid}.icon-btn:hover{color:var(--ink)}.intro{gap:12px;max-width:760px;padding-block:40px 24px;display:grid}.eyebrow{font:500 12px/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--blueprint)}h1{font:700 clamp(32px, 5vw, 48px)/1.05 var(--f-display);text-wrap:balance;letter-spacing:.5px;margin:0}.lead{color:var(--muted);max-width:62ch;margin:0;font-size:18px}.tool{grid-template-columns:minmax(0,2fr) minmax(300px,1fr);align-items:start;gap:20px;display:grid}.board{background:var(--surface);border:1px solid var(--rule);box-shadow:var(--shadow);border-radius:6px;min-width:0;display:grid}.board-bar{border-bottom:1px solid var(--rule);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;padding:12px 16px;display:flex}.readout{font:500 13px/1.4 var(--f-mono);color:var(--muted)}.readout b{color:var(--ink);font-weight:500}.bar-actions{gap:8px;display:flex}.btn{border:1px solid var(--rule);background:var(--surface);cursor:pointer;border-radius:4px;align-items:center;gap:6px;padding:7px 12px;font-size:14px;display:inline-flex}.btn:hover{border-color:var(--grid-strong)}.btn-primary{background:var(--accent);color:var(--accent-ink);border:0;border-radius:0;padding:9px 14px;font-weight:600}.btn-primary:hover{filter:brightness(1.06)}.canvas-wrap{background:var(--surface-2);place-items:center;min-height:320px;padding:16px;display:grid}.canvas-wrap canvas{cursor:pointer;touch-action:manipulation;max-width:100%;image-rendering:pixelated;display:block}.layer-ctl{border-top:1px solid var(--rule);align-items:center;gap:12px;padding:12px 16px;display:flex}.layer-ctl input{min-width:0;accent-color:var(--accent);flex:1}.hint{border-top:1px solid var(--rule);color:var(--muted);flex-wrap:wrap;gap:4px 16px;padding:10px 16px;font-size:13px;display:flex}.hint i{align-items:center;gap:6px;font-style:normal;display:inline-flex}.sw-line{border-top:2px dashed var(--blueprint);width:14px;height:0}.board:fullscreen{border-radius:0;grid-template-rows:auto 1fr auto auto;height:100%;overflow:auto}.board:fullscreen .canvas-wrap{min-height:0}.panel{background:var(--surface);border:1px solid var(--rule);top:calc(env(safe-area-inset-top,0px) + 76px);border-radius:6px;min-width:0;display:grid;position:sticky}.group{border-bottom:1px solid var(--rule);gap:10px;padding:16px;display:grid}.group:last-child{border-bottom:0}.label{font:500 12px/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);justify-content:space-between;align-items:center;display:flex}.modes{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.mode{border:1px solid var(--rule);background:var(--surface);cursor:pointer;color:var(--muted);border-radius:4px;justify-items:center;gap:4px;padding:10px 4px 8px;font-size:13px;text-decoration:none;display:grid}.mode svg{color:var(--ink)}.mode[aria-current]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);border-radius:0;font-weight:600}.mode[aria-current] svg{color:var(--accent-ink)}.row{align-items:center;gap:10px;display:flex}.row input[type=range]{min-width:0;accent-color:var(--accent);flex:1}.field{border:1px solid var(--rule);background:var(--surface);width:72px;color:var(--ink);font:500 15px var(--f-mono);text-align:right;border-radius:4px;padding:6px 8px}.dual{grid-template-columns:1fr 1fr;gap:10px;display:grid}.dual label{color:var(--muted);gap:6px;font-size:13px;display:grid}.dual .field{width:100%}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--rule);background:var(--surface);cursor:pointer;font:500 13px var(--f-mono);color:var(--muted);border-radius:4px;padding:4px 10px}.chip[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.seg{border:1px solid var(--rule);border-radius:4px;grid-template-columns:1fr 1fr;display:grid;overflow:hidden}.seg button{background:var(--surface);cursor:pointer;color:var(--muted);border:0;padding:7px;font-size:14px}.seg button+button{border-left:1px solid var(--rule)}.seg button[aria-pressed=true]{background:var(--ink);color:var(--surface);font-weight:600}.stepper{border:1px solid var(--rule);border-radius:4px;display:inline-flex;overflow:hidden}.stepper button{background:var(--surface);cursor:pointer;width:32px;font:500 16px var(--f-mono);border:0}.stepper button:disabled{color:var(--grid-strong);cursor:default}.stepper output{text-align:center;border-inline:1px solid var(--rule);min-width:36px;font:500 14px var(--f-mono);padding:5px 0}.mats{grid-template-columns:repeat(8,1fr);gap:6px;display:grid}.mat{aspect-ratio:1;cursor:pointer;border:2px solid #0000;border-radius:3px;max-width:100%;padding:0;box-shadow:inset 3px 3px #ffffff47,inset -3px -3px #0003}.mat[aria-pressed=true]{border-color:var(--ink);outline:2px solid var(--surface);outline-offset:-4px}.mat-name{color:var(--muted);font-size:13px}.stats{grid-template-columns:1fr 1fr;gap:12px 16px;display:grid}.stat{gap:2px;display:grid}.stat span{color:var(--muted);font-size:12px}.stat b{font:500 20px/1.2 var(--f-mono);font-variant-numeric:tabular-nums}.stat small{font:400 12px var(--f-mono);color:var(--muted)}.cmd{border:1px solid var(--rule);background:var(--surface-2);border-radius:4px;align-items:stretch;display:flex;overflow:hidden}.cmd code{min-width:0;font:500 13px var(--f-mono);color:var(--blueprint);white-space:nowrap;flex:1;padding:8px 10px;overflow-x:auto}.cmd button{border:0;border-left:1px solid var(--rule);background:var(--surface);cursor:pointer;padding:0 12px;font-size:13px}.note{color:var(--muted);margin:0;font-size:12px}.exports{grid-template-columns:1fr 1fr;gap:8px;display:grid}.exports .btn{justify-content:center}.exports .wide{grid-column:1/-1}.ad{gap:6px;min-height:280px;margin:32px 0;display:grid}.content .ad{margin:0}.ad-label{font:500 11px/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}@media (width<=520px){.ad{min-height:250px}}.range{width:100%;accent-color:var(--accent)}.under{grid-template-columns:minmax(0,2fr) minmax(300px,1fr);align-items:start;gap:20px;margin-top:20px;display:grid}.card{background:var(--surface);border:1px solid var(--rule);border-radius:6px;min-width:0}.card-h{border-bottom:1px solid var(--rule);justify-content:space-between;align-items:baseline;gap:12px;padding:14px 16px;display:flex}.card-h h2{font:600 16px/1.3 var(--f-body);margin:0}.card-h span{color:var(--muted);font-size:13px}.rows{max-height:340px;overflow:auto}.rows table{border-collapse:collapse;width:100%;font-size:14px}.rows th{background:var(--surface);text-align:left;font:500 12px var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--rule);padding:8px 16px;position:sticky;top:0}.rows td{border-bottom:1px solid var(--rule);font-family:var(--f-mono);font-variant-numeric:tabular-nums;padding:7px 16px}.rows tr:last-child td{border-bottom:0}.rows td.cols{color:var(--muted)}.bar{background:var(--accent);vertical-align:middle;border-radius:1px;height:8px;margin-right:8px;display:inline-block}.side-body{justify-items:center;gap:10px;padding:16px;display:grid}.side-body canvas{cursor:pointer;max-width:100%}.tip{gap:12px;padding:16px;font-size:14px;display:grid}.tip p{margin:0}.tip-grid{grid-template-columns:1fr 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var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.sizes td{font-family:var(--f-mono);font-variant-numeric:tabular-nums}.sizes td:last-child{font-family:var(--f-body);color:var(--muted)}.sizes tr:last-child td{border-bottom:0}.sizes tbody tr{cursor:pointer}.sizes tbody tr:hover td{background:var(--surface-2)}.chart{grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:12px;display:grid}.thumb{color:var(--ink);background:var(--surface);border:1px solid var(--rule);cursor:pointer;border-radius:6px;justify-items:center;gap:8px;padding:12px;text-decoration:none;display:grid}.thumb:hover{border-color:var(--accent)}.thumb svg{aspect-ratio:1;width:100%;max-width:108px;display:block}.thumb span{font:500 13px var(--f-mono)}.steps{counter-reset:s;gap:14px;max-width:68ch;margin:0;padding:0;list-style:none;display:grid}.steps li{counter-increment:s;grid-template-columns:36px 1fr;align-items:start;gap:12px;display:grid}.steps li:before{content:counter(s);background:var(--ink);width:32px;height:32px;color:var(--surface);font:600 16px var(--f-display);place-items:center;display:grid}.steps b{display:block}.faq{border-top:1px solid var(--rule);max-width:68ch;display:grid}.faq details{border-bottom:1px solid var(--rule)}.faq summary{cursor:pointer;justify-content:space-between;gap:12px;padding:14px 0;font-weight:600;list-style:none;display:flex}.faq summary:after{content:"+";font:500 18px var(--f-mono);color:var(--accent)}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);margin:0 0 16px}footer{background:var(--surface);border-top:1px solid var(--rule)}footer .wrap{grid-template-columns:1.4fr repeat(3,1fr);gap:24px;padding-block:32px;font-size:14px;display:grid}footer h3{font:500 12px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}footer ul{gap:6px;margin:0;padding:0;list-style:none;display:grid}footer a{color:var(--ink);text-decoration:none}footer a:hover{color:var(--accent)}.legal{color:var(--muted);max-width:40ch;margin:10px 0 0;font-size:13px}.toast{left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--surface);z-index:20;border-radius:4px;max-width:calc(100% - 32px);padding:10px 16px;font-size:14px;position:fixed;transform:translate(-50%)}@media (width<=900px){.tool,.under{grid-template-columns:minmax(0,1fr)}.panel{position:static}footer .wrap{grid-template-columns:1fr 1fr}}@media (width<=520px){.site .wrap{gap:12px}.logo{font-size:17px}.intro{padding-block:28px 18px}.lead{font-size:16px}.canvas-wrap{min-height:240px;padding:10px}.bar-actions .btn{padding:6px 10px;font-size:13px}}@media (prefers-reduced-motion:no-preference){.btn,.mode,.chip,.thumb{transition:border-color .15s,background-color .15s,filter .15s}}.tip-grid svg{width:90px;height:90px}.sizes a{color:inherit;text-decoration:none;display:block}.prose ul,.prose ol{gap:6px;margin:0;padding-left:1.2em;display:grid}.prose h2{margin-top:16px}.page{padding-block:40px 64px}.chart-big{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;display:grid}.chart-big .thumb svg{max-width:140px}.thumb small{font:400 12px var(--f-mono);color:var(--muted)}