:root{--ink:#263d35;--muted:#778179;--green:#315d49;--green-soft:#e9f0e8;--paper:#fbfaf6;--line:#e7e8df;--canvas-surround:#edece5;--orange:#eab46d;--white:#fff;--radius:12px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;border:1px solid transparent;cursor:pointer;color:var(--ink);min-height:36px;padding:8px 12px;border-radius:8px;transition:background .12s ease}button:hover{background:var(--green-soft)}button:disabled{opacity:.28;cursor:default}button.primary{background:var(--green);color:white;padding:11px 18px}button.primary:hover{background:#234835}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #db9e53;outline-offset:3px}button.quiet{border-color:var(--line);background:var(--white)}svg{flex:none}button[data-icon]:empty{padding:8px}select{border:0;background:transparent;color:var(--ink);padding:8px;cursor:pointer}input[type=range]{accent-color:var(--green);width:90px;height:4px;cursor:pointer}input[type=color]{cursor:pointer}h1,h2,p{margin:0}.app-header{height:84px;display:flex;align-items:center;gap:40px;padding:0 28px;border-bottom:1px solid var(--line);background:var(--white)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);min-width:176px}.brand-mark{display:grid;place-items:center;background:var(--green);width:44px;height:44px;border-radius:12px 12px 16px 5px;color:#faf4d9;font-size:24px;font-weight:800;transform:rotate(-5deg)}.brand strong{display:block;font-size:21px;letter-spacing:4px}.brand small{font-size:10px;color:var(--muted);letter-spacing:3px}.document-name{display:flex;flex-direction:column;gap:5px;flex:1}.document-name input{border:0;background:transparent;padding:0;outline-offset:5px;color:var(--ink);font-size:14px;font-weight:600;width:min(260px,100%)}#save-state{font-size:10px;color:var(--muted)}.header-actions{display:flex;gap:8px;font-size:12px}.workspace{display:grid;grid-template-columns:76px minmax(360px,1fr) 292px;min-height:calc(100vh - 84px)}.tool-rail{padding:22px 10px;border-right:1px solid var(--line);background:var(--white);display:flex;flex-direction:column;align-items:center;gap:24px}.tool-rail #tools{display:flex;flex-direction:column;gap:7px}.tool-button{width:54px;height:58px;flex-direction:column;gap:5px;border-radius:10px;padding:6px;font-size:10px;color:#77847c}.tool-button svg{width:21px;height:21px}.tool-button[aria-pressed=true]{color:var(--green);background:#e7eee5}.tool-button[aria-pressed=true]:before{content:'';position:absolute;width:3px;height:28px;background:var(--green);left:0;border-radius:0 2px 2px 0}.rail-bottom{margin-top:auto;display:flex;flex-direction:column;align-items:center;font-size:10px;color:var(--muted)}.studio{min-width:0;background:var(--paper);display:flex;flex-direction:column}.options-bar{height:61px;background:#fffefa;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px;padding:0 24px;font-size:11px}#brush-options,.opacity-control,.history-buttons{display:flex;align-items:center;gap:9px}.divider{height:20px;width:1px;background:var(--line);margin:0 4px}.options-bar select{font-size:12px;max-width:124px}.options-bar output{font-size:10px;color:var(--muted);min-width:25px}.history-buttons{margin-left:auto;gap:0}.history-buttons button{padding:8px}.canvas-heading{display:flex;align-items:center;justify-content:space-between;padding:28px 32px 20px;gap:12px}.eyebrow{font-size:8px;letter-spacing:2px;color:#8b9587;font-weight:600}h1{font-size:22px;letter-spacing:1px;margin-top:8px;font-weight:600}.canvas-heading button{font-size:10px;padding:8px 10px;border:0;background:transparent}.viewport{margin:0 24px;min-height:320px;flex:1;max-height:calc(100vh - 366px);height:calc(100vh - 366px);overflow:auto;display:flex;align-items:center;justify-content:center;background-color:var(--canvas-surround);background-image:radial-gradient(#d9d9ce .7px,transparent .7px);background-size:12px 12px;border-radius:9px;padding:32px}.canvas-sheet{width:100%;aspect-ratio:16/9;position:relative;flex:none;box-shadow:0 8px 28px #34462e12;background:white}#painting{width:100%;height:100%;display:block;touch-action:none;cursor:crosshair}#painting[data-tool=move]{cursor:grab}.canvas-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:14px 28px 0;font-size:10px;color:#81877e}.canvas-footer>span:first-child{white-space:nowrap}.status-dot{display:inline-block;width:5px;height:5px;border-radius:100%;background:#738b57;margin-right:7px}.zoom-controls{display:flex;align-items:center;gap:3px;white-space:nowrap}.zoom-controls button{min-height:24px;padding:4px 6px;font-size:12px}#zoom-value{font-size:10px;min-width:45px;text-align:center}#fit{font-size:10px}.palette{margin:24px 24px 22px;display:flex;align-items:center;gap:18px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:16px 20px;min-height:75px}.palette-label{display:flex;gap:12px;align-items:center;font-size:12px;white-space:nowrap}.palette-label small{display:block;font-size:9px;color:var(--muted);margin-top:5px}.current-color{width:31px;height:31px;display:block;background:#285b49;border-radius:100%;border:4px solid white;box-shadow:0 0 0 1px #dce1d7}.swatches{display:flex;gap:9px;flex:1;flex-wrap:wrap;justify-content:center}.swatch{height:25px;width:25px;min-height:25px;border-radius:50%;padding:0;border:3px solid white;box-shadow:0 0 0 1px transparent}.swatch:hover{background:var(--swatch);transform:scale(1.12)}.swatch[aria-pressed=true]{box-shadow:0 0 0 1.5px var(--green)}.custom-color{position:relative;border:1px dashed #c3cabb;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;overflow:hidden;flex:none}.custom-color input{position:absolute;inset:0;opacity:0;width:100%;height:100%;padding:0}.right-panel{border-left:1px solid var(--line);background:#fff;display:flex;flex-direction:column;min-width:0}.library{padding:24px 20px 16px;flex:1;display:flex;flex-direction:column;min-height:200px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.panel-heading h2{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}.panel-heading h2 svg{width:16px}.panel-heading>span,.panel-heading small{font-size:10px;font-weight:400;color:var(--muted)}.panel-description{font-size:10px;color:var(--muted);margin-top:9px;line-height:1.7}.categories{display:flex;flex-wrap:wrap;gap:4px;margin:17px 0}.categories button{font-size:10px;border-radius:6px;min-height:29px;padding:6px 9px;color:#7b8279}.categories button[aria-pressed=true]{color:var(--green);background:var(--green-soft);font-weight:600}.asset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-height:calc(100vh - 515px);min-height:180px;overflow:auto;align-content:start;padding:2px}.asset{border:1px solid #eceee5;background:#fafbf7;border-radius:10px;display:flex;flex-direction:column;gap:8px;min-height:108px;padding:12px 5px 9px;position:relative}.asset:hover{background:#edf3e6;border-color:#c4d1bd}.asset img{width:88px;max-width:100%;height:69px;object-fit:contain}.asset span{font-size:9px;color:#68766a}.asset .asset-add{position:absolute;top:5px;right:7px;width:16px;height:16px;background:white;border-radius:100%;display:grid;place-items:center;color:#809270;opacity:0}.asset:hover .asset-add{opacity:1}.library-tip{background:#f8f7ed;display:flex;gap:8px;font-size:9px;color:#7c7d67;line-height:1.7;border-radius:8px;padding:10px;margin-top:16px}.library-tip svg{width:15px;height:15px;color:#b89450}.layers-panel{border-top:1px solid var(--line);padding:16px 20px 12px;max-height:280px;min-height:188px}#layer-list{max-height:130px;overflow:auto;margin:10px 0;display:flex;flex-direction:column;gap:4px}.layer-row{display:flex;align-items:center;gap:7px;padding:5px;border:1px solid transparent;border-radius:7px;cursor:pointer}.layer-row.active{background:#eef3e9;border-color:#dbe5d3}.layer-thumb{width:42px;height:28px;object-fit:contain;background:repeating-conic-gradient(#f1f1e9 0% 25%,#fff 0% 50%) 50%/8px 8px;border:1px solid #e8eadf;border-radius:3px}.layer-name{flex:1;font-size:10px;text-align:left;padding:4px;min-height:28px}.layer-row .eye-button{padding:3px;min-height:28px}.eye-button svg{width:14px;height:14px}.layer-actions{display:flex;justify-content:space-between;padding-top:7px;border-top:1px solid var(--line)}.layer-actions button{font-size:10px;min-height:28px;padding:4px 7px}.layer-actions svg{width:14px;height:14px}.muted{color:#9a9f96}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;background:var(--ink);color:white;padding:12px 20px;border-radius:10px;font-size:12px;z-index:10;transition:opacity .15s,transform .15s;max-width:90vw;line-height:1.6}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}dialog{border:1px solid var(--line);border-radius:18px;padding:28px;width:min(420px,90vw);box-shadow:0 24px 90px #122d2833;color:var(--ink)}dialog::backdrop{background:#1d332b55;backdrop-filter:blur(3px)}dialog h2{font-size:22px;margin-bottom:14px}dialog p{font-size:12px;line-height:1.8;color:var(--muted);margin-bottom:20px}dialog label{display:block;font-size:12px;margin:15px 0 7px}dialog select,dialog input{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px;background:#fbfcf8}dialog .dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:24px;font-size:12px}.dialog-art{font-size:38px;color:#d39b53;display:block;margin-bottom:15px}
@media(min-width:1500px){.workspace{grid-template-columns:84px minmax(360px,1fr) 324px}.right-panel .asset img{height:80px;width:100px}.asset{min-height:125px}.options-bar input[type=range]{width:112px}.viewport{padding:44px}.canvas-heading{padding-top:34px;padding-bottom:28px}.palette{margin-top:30px}.tool-button{width:60px}}
@media(max-width:1150px){.app-header{gap:22px;padding:0 20px}.brand{min-width:130px}.workspace{grid-template-columns:66px minmax(320px,1fr) 248px}.tool-rail{padding-left:6px;padding-right:6px}.options-bar{padding:0 16px;gap:8px}.opacity-control input{width:58px}.options-bar input[type=range]{width:64px}.canvas-heading{padding:24px 24px 18px}.canvas-heading button{font-size:0}.canvas-heading button svg{width:18px}.palette{padding:12px;gap:10px}.palette-label small{display:none}.palette-label{font-size:10px}.swatches{gap:5px}.swatch{width:22px;height:22px;min-height:22px}.right-panel .library{padding:24px 14px 12px}.layers-panel{padding:14px}.canvas-footer #tool-hint{display:none}.viewport{padding:22px;margin:0 18px}}
@media(max-width:860px){.app-header{height:70px;gap:16px}.header-actions button{font-size:0;padding:8px}.header-actions button svg{width:19px}.brand{min-width:105px}.brand small{letter-spacing:1px}.document-name input{width:150px}.workspace{grid-template-columns:62px minmax(260px,1fr)}.right-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.asset-grid{grid-template-columns:repeat(3,1fr);max-height:230px}.layers-panel{max-height:380px;border-top:0}.viewport{height:50vh;max-height:55vh;min-height:290px}.options-bar .opacity-control{display:none}.canvas-heading{padding:18px}.palette{margin:18px}.tool-button{height:49px;width:48px}.palette-label{display:none}.canvas-footer{margin:10px 18px 0}}
@media(max-width:520px){.app-header{padding:0 12px}.brand{min-width:42px}.brand>span:last-child{display:none}.brand-mark{width:37px;height:37px;font-size:20px}.document-name input{width:120px;font-size:12px}.header-actions{gap:0}.workspace{grid-template-columns:52px minmax(0,1fr)}.tool-button{width:40px;height:47px}.tool-rail{padding:14px 4px}.options-bar{padding:0 8px}.options-bar .divider{display:none}.options-bar select{width:82px;padding:4px}.options-bar input[type=range]{width:48px}.history-buttons button{padding:5px}.history-buttons svg{width:17px}.canvas-heading h1{font-size:17px}.eyebrow{font-size:6px;letter-spacing:1px}.viewport{padding:12px;margin:0 10px;min-height:260px}.palette{margin:14px 10px;padding:12px 8px}.swatches{gap:4px}.swatch{width:20px;height:20px;min-height:20px}.canvas-footer{margin:8px 10px;font-size:8px}.right-panel{grid-template-columns:1fr}.asset-grid{grid-template-columns:repeat(4,1fr);max-height:230px}.asset{min-height:98px}.asset img{height:58px}.layers-panel{border-top:1px solid var(--line)}.studio{min-width:0}.history-buttons{gap:0}.zoom-controls{gap:0}.canvas-heading button{padding:3px}.tool-rail #tools{gap:3px}}
@media(min-width:861px){body{height:100vh;overflow:hidden}.workspace{height:calc(100vh - 84px);min-height:0}.studio{min-height:0}.viewport{height:auto;max-height:none;min-height:180px;flex:1}.canvas-heading{padding-top:20px;padding-bottom:18px}.canvas-footer{margin-top:8px;flex:none}.palette{margin-top:16px;margin-bottom:16px;padding-top:12px;padding-bottom:12px;min-height:66px;flex:none}.tool-rail{min-height:0;overflow-y:auto;padding-top:16px;padding-bottom:16px;gap:12px}.tool-button{height:50px}.tool-rail #tools{gap:5px}.library{min-height:0;overflow:hidden}.asset-grid{max-height:none;min-height:0;flex:1}.layers-panel{height:190px;min-height:190px;flex:none}}
@media(min-width:861px){.workspace{grid-template-rows:minmax(0,1fr)}.right-panel{min-height:0}.options-bar,.canvas-heading{flex:none}.layers-panel{display:flex;flex-direction:column}#layer-list{min-height:0;flex:1}.layer-actions{flex:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.command-strip{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 24px;border-bottom:1px solid var(--line);background:#fff;flex:none;overflow-x:auto}.command-strip button{font-size:11px;white-space:nowrap;min-height:30px;padding:5px 10px}.workspace-tabs,.edit-commands{display:flex;gap:4px}.workspace-tabs .selected{background:var(--green-soft);font-weight:600}.detail-bar{display:flex;align-items:center;gap:14px;padding:8px 24px;background:#f6f7f0;min-height:43px;flex:none;overflow-x:auto;font-size:10px;white-space:nowrap}.detail-bar label{display:flex;align-items:center;gap:5px}.detail-bar [hidden]{display:none}.detail-bar select{font-size:10px;padding:4px;max-width:150px}.detail-bar input[type=number]{width:48px;border:1px solid var(--line);border-radius:4px;padding:3px}.detail-bar input[type=color]{height:24px;width:28px;padding:0;border:0;background:none}.detail-bar #option-help{margin-left:auto;color:var(--muted);font-size:9px}.dialog-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.dialog-grid button{border:1px solid var(--line);font-size:12px;background:var(--paper)}dialog.wide-dialog{width:min(780px,94vw);max-height:90vh;overflow:auto}.effect-layout{display:grid;grid-template-columns:250px 1fr;gap:24px}.effect-preview{background:repeating-conic-gradient(#edf0e8 0% 25%,white 0% 50%) 50%/16px 16px;min-height:240px;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;font-size:11px;color:var(--muted);padding:16px}.effect-preview canvas{max-width:100%;max-height:320px;object-fit:contain}#effect-parameters label{display:grid;grid-template-columns:80px 1fr 32px;align-items:center;gap:8px}#effect-parameters input{width:100%;padding:0}dialog input[type=range]{padding:0}#function-modes label{font-size:11px}#function-modes select{padding:4px}.canvas-heading{padding-top:12px!important;padding-bottom:12px!important}.canvas-heading h1{font-size:20px}.tool-rail #tools{gap:2px}.tool-button{height:43px;min-height:43px}.tool-button svg{width:18px;height:18px}.tool-rail{gap:8px}.options-bar{height:52px}.command-strip+.detail-bar~.viewport{min-height:150px}@media(max-width:1150px){.command-strip,.detail-bar{padding-left:12px;padding-right:12px}.detail-bar #option-help{display:none}.command-strip button{padding:5px 7px}}@media(max-width:650px){.effect-layout{grid-template-columns:1fr}}

.record-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:12px 0}.record-controls button{padding:8px 10px}.record-controls label{margin:0;display:flex;gap:6px;align-items:center}#record-position{flex:1;min-width:120px}#record-preview{height:240px;background:#e5e9e4;display:flex;align-items:center;justify-content:center;padding:12px}#record-preview canvas{max-width:100%;max-height:100%;object-fit:contain;background:white}.wide-dialog{max-height:90vh;overflow:auto}.detail-bar{min-height:42px;flex-shrink:0}.edit-commands{flex-wrap:wrap}.command-strip{flex-shrink:0;flex-wrap:wrap}

.gallery-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-height:440px;overflow:auto}.gallery-card{display:flex;flex-direction:column;gap:8px;padding:12px;background:#f4f6f2;border-radius:12px}.gallery-card img{width:100%;aspect-ratio:16/9;object-fit:contain}.gallery-card small{color:#68756d}.gallery-card button{padding:8px}

.record-controls label{white-space:nowrap;flex:none;font-size:11px}.record-controls input[type=checkbox]{width:auto;min-width:16px;padding:0;flex:none}.record-controls select{width:auto}.record-controls #gallery-folder{width:170px}.record-controls input[type=range]{padding:0}#record-position{width:auto}.record-controls{row-gap:12px}

/* The fractal renderer remains available to internal callers and compatibility tests,
   while its experimental controls stay out of the public tool surface. */
.tool-button[data-tool="fractal"],
[data-option="fractal"] { display: none !important; }