:root{color-scheme:dark;--bg: #181b22;--bg-dark: #12151b;--bg-highlight: #272c36;--panel: #20242d;--muted: #697586;--fg-dim: #a9b0bc;--fg: #eeeae1;--fg-light: #e5c48c;--red: #ff9ca6;--orange: #ffbc79;--green: #afd193;--link: #b4cef7;--border: #383f4b}*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}body{font-family:Consolas,Monaco,Courier New,monospace;background:var(--bg);color:var(--fg);min-height:100vh;font-size:14px;line-height:1.5}button,input,select,textarea{font:inherit}button,select,input[type=checkbox],input[type=color],summary{cursor:pointer}button{color:inherit}button:disabled{opacity:.4;cursor:default}:focus-visible{outline:2px solid var(--fg-light);outline-offset:4px}header{max-width:1480px;margin:auto;padding:22px 32px;display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:12px;color:var(--fg);text-decoration:none}.brand-mark{font-size:32px;color:var(--fg-light);line-height:1}h1{font-size:20px;font-weight:600;letter-spacing:-.5px}h1 span{font-size:12px;color:var(--fg-dim);font-weight:400;letter-spacing:0}.header-actions{display:flex;gap:22px;align-items:center}.privacy-note{color:var(--fg-dim);font-size:11px}main{max-width:1480px;margin:auto;padding:28px 32px 48px}.btn,.look-btn{background:var(--bg-highlight);border:1px solid var(--muted);border-radius:5px;min-height:40px;padding:8px 14px;font-size:12px;transition:background .15s}.btn:hover:not(:disabled),.look-btn:hover{background:#343b48}.primary-btn{background:var(--fg-light);border-color:var(--fg-light);color:#262015;font-weight:700}.primary-btn:hover:not(:disabled){background:#f2d7a6}.text-btn{background:none;border:0;min-height:36px;padding:6px 2px;color:var(--link);font-size:12px;text-underline-offset:4px}.text-btn:hover:not(:disabled){text-decoration:underline}.help{color:var(--fg-dim);font-size:11px;line-height:1.65}#empty-state{max-width:790px;margin:7vh auto 0;text-align:center}.eyebrow{color:var(--fg-light);font-size:11px;letter-spacing:1px;margin-bottom:18px}#welcome-heading{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-1.5px;font-weight:500}.intro-copy{color:var(--fg-dim);margin:22px 0 30px;line-height:1.8;font-size:13px}#dropzone{min-height:180px;padding:26px 18px;border:1px dashed var(--muted);background:var(--panel);border-radius:8px;cursor:pointer;display:flex;flex-direction:column;gap:10px;align-items:center;justify-content:center}#dropzone:hover,#dropzone.drag-over,#import-dropzone:hover,#import-dropzone.drag-over{border-color:var(--fg-light);background:var(--bg-highlight)}.upload-symbol{color:var(--fg-light);font-size:32px;line-height:1}#dropzone strong{font-size:14px;font-weight:400}#dropzone input,#import-dropzone input{display:none}#sample-btn{margin-top:14px}.intro-features{margin:42px auto 0;display:flex;justify-content:center;gap:30px;color:var(--fg-dim);font-size:11px}.intro-features span:before{content:"· ";color:var(--fg-light)}#workspace{display:none;grid-template-columns:minmax(0,1fr) 392px;gap:24px;align-items:start}body.has-image #workspace{display:grid}body.has-image #empty-state{display:none}#preview-panel{min-width:0;position:sticky;top:20px}.image-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px}.image-heading>div{min-width:0}#image-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.preview-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:15px}.view-controls{display:flex;gap:2px;border:1px solid var(--border);background:var(--bg-dark);border-radius:5px;padding:3px}.view-controls button{background:transparent;border:0;min-height:32px;padding:5px 12px;border-radius:3px;font-size:11px;color:var(--fg-dim)}.view-controls button[aria-pressed=true]{background:var(--bg-highlight);color:var(--fg)}.zoom-control{display:flex;gap:8px;align-items:center;color:var(--fg-dim);font-size:11px}select{background:var(--bg-dark);color:var(--fg);border:1px solid var(--muted);border-radius:4px;padding:8px;min-height:36px;min-width:0}#canvas-area{display:none;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}#canvas-area.visible{display:grid}#canvas-area[data-view=result],#canvas-area[data-view=source]{grid-template-columns:minmax(0,1fr)}#canvas-area[data-view=result] #source-wrap,#canvas-area[data-view=source] #result-wrap{display:none}.canvas-wrap{min-width:0}figcaption{color:var(--fg-dim);font-size:10px;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}#preview-state{color:var(--fg-light);font-size:9px;letter-spacing:0}.canvas-scroll{height:clamp(260px,46vh,540px);padding:12px;overflow:auto;border:1px solid var(--border);border-radius:5px;background:var(--bg-dark);scrollbar-color:var(--muted) var(--bg-dark)}.canvas-wrap canvas{display:block;margin:0 auto;image-rendering:pixelated;width:100%;height:auto}.preview-viewport{position:relative}#render-overlay{position:absolute;inset:1px;display:grid;place-items:center;background:#10141a66;border-radius:4px;pointer-events:none}.render-badge{display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid var(--muted);border-radius:5px;background:var(--bg-dark);color:var(--fg);font-size:11px;box-shadow:0 2px 12px #0006}.render-spinner{width:14px;height:14px;flex-shrink:0;border:2px solid var(--muted);border-top-color:var(--fg-light);border-radius:50%;animation:spin 1s linear infinite}.status-row{min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:10px}#status{font-size:11px;color:var(--fg-dim)}#status.busy:before{content:"";display:inline-block;width:10px;height:10px;margin-right:9px;border:1px solid var(--muted);border-top-color:var(--fg-light);border-radius:50%;animation:spin 1s linear infinite}#status.error{color:var(--red)}@keyframes spin{to{transform:rotate(360deg)}}.export-bar{display:flex;gap:12px;justify-content:space-between;align-items:center;padding:16px;border:1px solid var(--border);background:var(--panel);border-radius:6px}.export-bar>div{min-width:0}.export-bar label{display:block;color:var(--fg-dim);font-size:10px;margin-bottom:5px}.export-bar select{font-size:11px;max-width:100%}#export-size{margin-top:5px}.preview-tip{margin-top:12px}#controls{display:none;background:var(--panel);border:1px solid var(--border);border-radius:6px;min-width:0}#controls.visible{display:flex;flex-direction:column}.panel-heading{display:flex;justify-content:space-between;align-items:center;padding:14px 20px 0}h2{font-size:14px;font-weight:500}.quick-looks{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:10px 20px 20px}.look-btn{font-size:10px;padding:8px 2px;border-color:var(--border)}.settings-section{padding:20px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:14px}h3{font-size:10px;font-weight:400;color:var(--fg-light);letter-spacing:1.5px;text-transform:uppercase}.control-row,.param-row{display:flex;gap:10px;align-items:center;min-width:0;font-size:12px}.control-row>label,.param-row>label{min-width:100px;color:var(--fg-dim)}.control-row select{flex:1;width:0;font-size:12px}input[type=range]{flex:1;min-width:32px;width:60px;height:28px;accent-color:var(--fg-light)}input[type=checkbox]{accent-color:var(--fg-light);width:16px;height:16px;flex-shrink:0}.control-row label:has(input),.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer}.param-row label.checkbox-label{min-width:0}.param-value,output{min-width:44px;text-align:right;color:var(--fg);font-size:11px;font-variant-numeric:tabular-nums}#algo-params{display:flex;flex-direction:column;gap:9px}#algorithm-help{padding-left:10px;border-left:2px solid var(--muted)}summary{color:var(--fg-dim);font-size:12px;min-height:32px;padding:5px 0}summary:hover{color:var(--fg)}.details-content{display:flex;flex-direction:column;gap:10px;padding-top:10px}#palette-options,#extract-controls,#import-controls,#custom-controls,#ramp-controls{display:none;flex-direction:column;gap:12px;min-width:0}#palette-options.visible,#extract-controls.visible,#import-controls.visible,#custom-controls.visible,#ramp-controls.visible{display:flex}.palette-heading{display:flex;justify-content:space-between;align-items:center;gap:6px}.palette-actions{display:flex;gap:12px}#palette-preview{display:flex;flex-wrap:wrap;gap:4px}.palette-swatch{width:27px;height:27px;border:1px solid var(--muted);border-radius:3px}#import-dropzone{border:1px dashed var(--muted);padding:16px;text-align:center;cursor:pointer;color:var(--fg-dim);font-size:11px;display:flex;flex-direction:column;gap:6px;border-radius:4px}.import-formats{font-size:10px}textarea,input[type=text]{background:var(--bg-dark);border:1px solid var(--muted);border-radius:4px;color:var(--fg);padding:9px;min-width:0}#import-hex{resize:vertical;font-size:12px;width:100%}#import-hex::placeholder{color:var(--fg-dim)}#import-status{font-size:11px}#import-status.success{color:var(--green)}#import-status.error{color:var(--red)}.swatch-row{display:flex;gap:8px;align-items:center;min-width:0;font-size:11px}#custom-controls>.swatch-row{display:grid;grid-template-columns:36px minmax(0,1fr) 28px;padding:10px;border:1px solid var(--border);border-radius:4px}.swatch-preview{width:32px;height:32px;flex-shrink:0}input[type=color]{width:36px;height:34px;padding:2px;background:var(--bg-dark);border:1px solid var(--muted);border-radius:3px}.hex-input{width:110px;max-width:100%;font-size:12px}input[aria-invalid=true]{border-color:var(--red)}.swatch-slider-group{display:flex;align-items:center;gap:8px;grid-column:1 / -1;min-width:0}.swatch-label{min-width:60px;color:var(--fg-dim);font-size:10px}.swatch-value{min-width:38px;text-align:right;font-size:10px}.swatch-delete{border:0;background:none;color:var(--red);font-size:19px;min-width:28px;min-height:36px}.swatch-row.near-duplicate{border-left:2px solid var(--orange)!important}.palette-btn-row{display:flex;gap:7px;flex-wrap:wrap}.palette-btn-row .btn{font-size:10px;padding:6px 10px}.ramp-card{display:flex;flex-direction:column;gap:8px;padding:12px;border:1px solid var(--border);border-radius:4px;background:var(--bg-dark)}.ramp-header{display:flex;align-items:center;justify-content:space-between;color:var(--fg-dim);font-size:11px}.ramp-preview{display:flex;height:24px;margin-bottom:4px}.ramp-preview-swatch{flex:1}.ramp-options{display:flex;flex-direction:column;gap:10px;font-size:11px;color:var(--fg-dim)}.ramp-options label{display:flex;align-items:center;gap:8px}#mix-preview-wrap{display:none}#mix-preview-wrap.visible{display:block}#mix-preview-canvas{image-rendering:pixelated;width:100%;max-width:280px;height:auto;border:1px solid var(--border);margin-top:10px}#global-status{text-align:center;color:var(--red);font-size:12px;margin-top:16px}.mobile-nav{display:none}body.page-drag:after{content:"Drop to open image";position:fixed;inset:12px;z-index:10;border:2px dashed var(--fg-light);border-radius:10px;background:#181b22ef;display:grid;place-content:center;color:var(--fg-light);font-size:24px;pointer-events:none}@media(max-width:1100px){#workspace{grid-template-columns:minmax(0,1fr) 360px;gap:18px}header,main{padding-left:20px;padding-right:20px}.privacy-note{display:none}}@media(max-width:840px){#workspace{grid-template-columns:minmax(0,1fr);gap:22px}#preview-panel{position:static}header{padding:14px 16px}main{padding:18px 16px 32px}body.has-image main{padding-bottom:80px}.canvas-scroll{height:clamp(210px,29vh,320px)}body.has-image .mobile-nav{display:flex;justify-content:space-around;position:fixed;bottom:0;left:0;right:0;padding:8px 16px max(8px,env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--panel);z-index:5}.mobile-nav a{color:var(--link);font-size:12px;text-decoration:none;padding:8px 24px}#preview-panel,#controls{scroll-margin-top:16px}#controls{max-width:none}#empty-state{margin-top:6vh}.intro-features{gap:14px;flex-wrap:wrap}}@media(max-width:420px){h1 span{display:none}.view-controls button{padding:5px 9px}.zoom-control{gap:4px;font-size:10px}.zoom-control select{padding:5px}.export-bar{padding:12px;gap:8px}.export-bar .btn{font-size:11px;padding:8px 10px}.export-bar{flex-wrap:wrap}.settings-section{padding:18px 16px}.panel-heading,.quick-looks{padding-left:16px;padding-right:16px}.control-row>label,.param-row>label{min-width:94px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}