:root{color-scheme:light;--navy:#10233f;--ink:#172033;--muted:#5f6b7a;--line:#dce3ec;--surface:#fff;--soft:#f3f7fb;--accent:#6d28d9;--cyan:#0891b2;--danger:#b42318;font:16px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:transparent;color:var(--ink)}button,input{font:inherit}.tool{display:grid;gap:16px;max-width:1120px;margin:0 auto;padding:8px}.workspace{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.85fr);gap:16px;align-items:start}.side-column{display:grid;gap:16px}.history-card{grid-column:1/-1}.tool__header,.section-heading,.sample-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.tool__header h2{margin:2px 0 8px;font-size:clamp(1.5rem,4vw,2.1rem);line-height:1.15}.eyebrow,.step{margin:0;color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.lead,.hint,.boundary,.keyboard-hint,.empty{margin:0;color:var(--muted)}.privacy{flex:none;border:1px solid #c4b5fd;border-radius:999px;background:#f5f3ff;color:#5b21b6;padding:7px 11px;font-size:.78rem;font-weight:700}.card{min-width:0;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:20px;box-shadow:0 12px 30px rgb(15 35 64/7%)}.section-heading{margin-bottom:16px}.section-heading h3{margin:2px 0 0;font-size:1.15rem}.hint{max-width:430px;text-align:right;font-size:.88rem}.hint.left{text-align:left;margin-top:4px}.file-picker{display:grid;place-items:center;min-height:116px;border:2px dashed #a8b4c4;border-radius:14px;background:var(--soft);cursor:pointer;font-weight:800;text-align:center;padding:20px}.file-picker.is-dragging{border-color:var(--accent);background:#f5f3ff}.file-picker:focus-within{outline:3px solid rgb(109 40 217/28%);outline-offset:2px}.file-picker input{position:absolute;width:1px;height:1px;opacity:0}.busy{margin-top:12px;color:var(--accent);font-weight:700}.error{margin:12px 0 0;border-radius:10px;background:#fef3f2;color:var(--danger);padding:10px 12px}.canvas-wrap{display:grid;place-items:center;min-height:280px;max-height:650px;overflow:auto;border:1px solid var(--line);border-radius:14px;background:repeating-conic-gradient(#eef2f7 0 25%,#fff 0 50%) 50%/20px 20px;padding:8px}.canvas-wrap canvas{display:block;max-width:100%;max-height:620px;width:auto;height:auto;cursor:crosshair;box-shadow:0 4px 18px rgb(15 35 64/15%)}.canvas-wrap canvas:focus-visible{outline:4px solid rgb(109 40 217/35%);outline-offset:3px}.keyboard-hint{margin-top:10px;font-size:.84rem}.sample-head{align-items:center;justify-content:flex-start}.sample-head #magnifier{flex:none;width:121px;height:121px;border:1px solid var(--line);border-radius:12px;background:repeating-conic-gradient(#e5e7eb 0 25%,#fff 0 50%) 50%/14px 14px;image-rendering:pixelated}.swatch{display:block;border:1px solid rgb(15 35 64/18%);background:repeating-conic-gradient(#d1d5db 0 25%,#fff 0 50%) 50%/12px 12px}.swatch.large{width:74px;height:50px;border-radius:10px}.coordinate{margin:7px 0 0;color:var(--muted);font-size:.84rem;font-weight:700}.formats{display:grid;gap:8px;margin-top:14px}.format{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:8px;align-items:center;width:100%;border:1px solid var(--line);border-radius:11px;background:var(--soft);color:var(--ink);padding:9px 10px;text-align:left;cursor:pointer}.format span,.format small{color:var(--muted);font-size:.72rem;font-weight:800}.format strong{overflow-wrap:anywhere}.format:hover{border-color:#a78bfa}.channels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin:2px 0 0}.channels div{border-radius:9px;background:var(--soft);padding:7px;text-align:center}.channels dt{color:var(--muted);font-size:.72rem}.channels dd{margin:1px 0 0;font-weight:800}.copy-status{min-height:1.4em;margin:8px 0 0;color:var(--cyan);font-size:.82rem;font-weight:700}.palette{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.palette button{display:grid;gap:6px;min-width:0;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);padding:6px;cursor:pointer}.palette button:hover{border-color:#a78bfa}.palette .swatch{width:100%;aspect-ratio:1.3;border-radius:7px}.palette strong{font-size:.72rem;overflow-wrap:anywhere}.palette small{color:var(--muted);font-size:.68rem}.history{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:0;padding:0;list-style:none}.history li{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:9px;align-items:center;border:1px solid var(--line);border-radius:11px;background:var(--soft);padding:9px}.history .swatch{width:42px;height:42px;border-radius:8px}.history strong,.history small{display:block}.history strong{font-size:.85rem}.history small{color:var(--muted)}button,.secondary{border:0;border-radius:9px;background:var(--accent);color:#fff;cursor:pointer;font-weight:800;padding:8px 11px}.secondary{border:1px solid #c9d2df;background:#fff;color:var(--navy)}button:focus-visible{outline:3px solid rgb(109 40 217/30%);outline-offset:2px}.boundary{margin-top:14px;font-size:.86rem}.empty{font-size:.9rem}
@media(max-width:820px){.workspace{grid-template-columns:1fr}.history-card{grid-column:auto}.history{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.tool{padding:4px}.tool__header,.section-heading{display:grid}.privacy{justify-self:start}.hint{text-align:left}.card{padding:16px}.sample-head{align-items:flex-start}.sample-head #magnifier{width:99px;height:99px}.palette{grid-template-columns:repeat(2,minmax(0,1fr))}.history{grid-template-columns:1fr}.format{grid-template-columns:50px minmax(0,1fr)}.format small{display:none}.channels{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(prefers-reduced-motion:no-preference){button{transition:transform .15s ease,opacity .15s ease}button:not(:disabled):hover{transform:translateY(-1px)}}