:root{color-scheme:dark;--bg:#14171c;--panel:#1d2128;--line:#343a45;--text:#eef1f5;--muted:#9ca6b5;--accent:#c8f36a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.6 'Yu Gothic',Meiryo,sans-serif}button,input,select,textarea{font:inherit}button{background:#292f39;color:var(--text);border:1px solid var(--line);border-radius:7px;padding:7px 12px;cursor:pointer;white-space:nowrap}button:hover{background:#3b4450}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button:disabled{opacity:.4;cursor:default}.primary{background:var(--accent);color:#202815;border-color:var(--accent);font-weight:700}.primary:hover{background:#daff91}header{min-height:76px;display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-size:18px;font-weight:700}.brand b{background:var(--accent);color:#1d2416;font:bold 24px Arial;padding:2px 10px;border-radius:7px}.brand span{font:11px Arial;letter-spacing:2px;color:var(--muted)}nav{display:flex;background:#101318;border-radius:8px;padding:4px}.tab{border:0;background:none;padding:9px 20px}.tab.active{background:#353e4b;color:var(--accent)}.header-actions,.row{display:flex;gap:7px;align-items:center}.between{justify-content:space-between}main{display:grid;grid-template-columns:260px minmax(350px,1fr) 300px;height:calc(100vh - 77px)}aside{background:var(--panel);overflow-y:auto}.left{border-right:1px solid var(--line)}.right{border-left:1px solid var(--line)}.section-title{padding:17px 18px;font-weight:700;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}.section-title span{font:11px/2 Arial;letter-spacing:2px;color:var(--muted)}section{padding:17px 18px;border-bottom:1px solid var(--line)}h2{font-size:14px;margin:0 0 12px;font-weight:700}label{display:block;color:#bfc7d3;margin-bottom:10px}input:not([type=checkbox]),select,textarea{display:block;width:100%;margin-top:5px;background:#14181e;border:1px solid var(--line);color:var(--text);border-radius:6px;padding:7px 9px;min-width:0}input[type=color]{height:36px;padding:3px}input[type=range]{padding:5px 0;accent-color:var(--accent)}textarea{resize:vertical;line-height:1.7}.wide{width:100%}small,.muted{font-size:12px;color:var(--muted)}small{display:block;margin-top:9px}.presets{display:grid;grid-template-columns:1fr 1fr;gap:8px}.preset{height:70px;white-space:normal;background:#14181e}.preset strong{font-size:22px;display:block;line-height:1.3}.preset span{font-size:11px;color:var(--muted)}.stamps{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.stamps button{font-size:24px;padding:5px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 10px}.grid2[hidden]{display:none}.workspace{display:flex;flex-direction:column;min-width:0;background:radial-gradient(ellipse at top,#242c37,#12151a 80%)}.toolbar{display:flex;justify-content:space-between;gap:10px;padding:12px 18px;background:#1b2027;border-bottom:1px solid var(--line);flex-wrap:wrap}.toolbar button{padding:5px 9px}.check{display:flex;align-items:center;gap:5px;margin:0;font-size:13px}.check input{accent-color:var(--accent)}.divider{height:22px;width:1px;background:var(--line);margin:0 3px}.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;padding:36px;overflow:hidden;min-height:260px}.canvas-shell{width:100%;box-shadow:0 22px 65px #0007;background-color:#343940;background-image:linear-gradient(45deg,#454b53 25%,transparent 25%),linear-gradient(-45deg,#454b53 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#454b53 75%),linear-gradient(-45deg,transparent 75%,#454b53 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0;line-height:0}canvas{width:100%;height:auto;touch-action:none;outline:none;cursor:default}.status{display:flex;justify-content:space-between;padding:12px 20px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}.bottom{padding:18px 20px;display:flex;gap:10px;color:var(--muted);font-size:13px}.badge{color:var(--accent);font:bold 11px/2 Arial;letter-spacing:1px}.empty{text-align:center;padding:20px 0;color:var(--muted)}.layer{display:flex;align-items:center;gap:5px;padding:7px 4px;border:1px solid transparent;border-radius:6px;margin-bottom:4px}.layer.selected{background:#c8f36a12;border-color:#c8f36a66}.layer button{padding:2px 6px;border:0;background:transparent;font-size:12px}.layer .name{flex:1;overflow:hidden;text-overflow:ellipsis;text-align:left;font-size:14px}.layer.locked .name{color:var(--muted)}#layers{max-height:270px;overflow:auto;margin-bottom:12px}.right .row button{font-size:12px;padding:6px 7px}.thumb-only{display:none}body.thumbnail .thumb-only{display:block}body.thumbnail #send{display:none}dialog{background:#242a33;color:var(--text);border:1px solid var(--line);border-radius:14px;padding:25px;width:390px;max-width:95vw}dialog::backdrop{background:#0009}dialog h2{font-size:20px}dialog p{color:var(--muted);font-size:13px}dialog .row{justify-content:flex-end;margin-top:24px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--accent);color:#202815;padding:10px 20px;border-radius:8px;display:none;box-shadow:0 8px 30px #0005;z-index:10}@media(min-width:1600px){main{grid-template-columns:280px minmax(350px,1fr) 320px}}@media(max-width:1100px){main{grid-template-columns:220px minmax(300px,1fr) 260px}.brand span{display:none}header{padding:12px}.tab{padding:8px 12px}.canvas-area{padding:20px}section{padding:14px 12px}}@media(max-width:850px){header{flex-wrap:wrap;gap:10px}.brand{font-size:16px}nav{order:3;width:100%}.tab{flex:1}main{height:auto;grid-template-columns:1fr 1fr}.workspace{grid-column:1/-1;grid-row:1;min-height:430px}.left,.right{overflow:visible}.canvas-area{min-height:250px}.header-actions{margin-left:auto}.header-actions button{padding:6px 8px}.toolbar{padding:10px}.canvas-shell{max-width:800px}.right{border-left:1px solid var(--line)}}@media(max-width:440px){main{grid-template-columns:1fr}.workspace{min-height:330px}.right{border:0}.canvas-area{padding:12px;min-height:190px}.header-actions{width:100%;justify-content:flex-end}.bottom{font-size:12px}.status{padding:10px}.brand{width:100%}}

/* hidden must override styled inputs and grid/flex containers. */
[hidden]{display:none!important}body.thumbnail .letters-only{display:none}.effect-toggles{border-top:1px solid var(--line);padding-top:12px;margin-top:5px}.effect-toggles .check{margin-bottom:10px}.presets{max-height:365px;overflow-y:auto;padding:2px}.left h2{color:#eef1f5}

#send{white-space:normal;line-height:1.7}
.layer .name{min-width:0}
.layer .layer-delete{color:#ff9b9b}
.layer .layer-delete:hover:not(:disabled){background:#ff656520}
body.thumbnail .right{display:flex;flex-direction:column}
body.thumbnail .right>section,body.thumbnail .right>.section-title{flex-shrink:0}
body.thumbnail #layerPanel{order:-1}

.asset-library{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}.asset-library button{padding:5px;white-space:normal;font-size:12px;text-align:left;overflow:hidden}.asset-library img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:4px;margin-bottom:4px;background:repeating-conic-gradient(#e0e2e6 0% 25%,#fff 0% 50%) 0/12px 12px}.asset-library canvas{display:block;width:100%;border-radius:4px;margin-bottom:4px}.layer button:last-child{font-size:12px;white-space:nowrap}.layer.locked{border-color:#727b89}

.background-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:14px}.background-tabs button{white-space:normal;font-size:12px;padding:8px 5px}.background-tabs button.active{color:#202815;background:var(--accent);border-color:var(--accent)}#patternPresets{max-height:225px;overflow:auto}#backgroundPresets{max-height:450px;overflow:auto}

#patternPresets>button:first-child{grid-column:1/-1}#patternPresets>button:first-child canvas{max-height:45px}

.dot-placement{border-top:1px solid var(--line);margin-top:15px;padding-top:15px}.dot-placement .grid2{margin-top:10px}.dot-placement .wide{white-space:normal;margin-top:8px}.dot-placement .check{margin-bottom:10px}

.toolbar #addImage{margin-left:auto;align-self:center}

.layer .layer-grip{cursor:grab;font-size:16px;padding:2px 3px;flex-shrink:0;color:var(--muted)}.layer .layer-grip:active{cursor:grabbing}.layer .name{min-width:0}.layer.locked.selected{background:#ff656515;border-color:#ff6565}.layer-folder{border-left:2px solid #607145;margin:6px 0;border-radius:5px;background:#10131855}.folder-header{margin:0}.folder-child{margin-left:10px}.folder-name-input{min-width:0!important;margin:0!important;padding:2px 4px!important;flex:1;width:70px!important}.layer-help{margin:8px 0 10px}.drop-before{box-shadow:0 -3px var(--accent)}.drop-after{box-shadow:0 3px var(--accent)}.drop-inside{background:#c8f36a25!important;outline:1px dashed var(--accent)}

.workspace{min-height:0}.canvas-area{position:relative;min-height:0;min-width:0;padding:36px;isolation:isolate;overflow:hidden}.canvas-shell{flex-shrink:0;max-width:100%;pointer-events:none}.canvas-area>canvas{position:absolute;inset:0;display:block;width:100%;height:100%;z-index:1}

.toolbar>.row{flex-wrap:wrap}.alignment-separator{color:var(--line);padding:0 2px}.alignment-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.alignment-controls small{margin:0;font-size:11px}.alignment-controls button.active{background:var(--accent);color:#202815;border-color:var(--accent)}

.panel-resizer{display:none;background:var(--line);cursor:col-resize;touch-action:none;position:relative;z-index:3}.panel-resizer:hover,.panel-resizer:focus-visible,.resizing-panels .panel-resizer{background:var(--accent)}.resizing-panels,.resizing-panels *{cursor:col-resize!important;user-select:none!important}
@media(min-width:851px){main{grid-template-columns:var(--left-width,260px) 6px minmax(300px,1fr) 6px var(--right-width,300px)}.panel-resizer{display:block}}
@media(min-width:1600px){main{grid-template-columns:var(--left-width,280px) 6px minmax(350px,1fr) 6px var(--right-width,320px)}}
@media(min-width:851px) and (max-width:1100px){main{grid-template-columns:var(--left-width,220px) 6px minmax(300px,1fr) 6px var(--right-width,260px)}}

#bgCorrectionControls{border-top:1px solid var(--line);padding-top:15px;margin-top:15px}#bgCorrectionControls output{float:right;color:var(--text);font-size:12px}

#frameCorrectionControls{border-top:1px solid var(--line);padding-top:15px;margin-top:15px;margin-bottom:15px}#frameCorrectionControls output{float:right;color:var(--text);font-size:12px}

#patternPresets button.active{border-color:var(--accent);background:#c8f36a15;box-shadow:0 0 0 1px var(--accent)}

.layer-folder{padding-bottom:5px}