:root{--bg:#f4f6f8;--panel:#fff;--text:#17202a;--muted:#667085;--line:#dce2e8;--accent:#b51f2e;--accent2:#8f1723;--ok:#147d64;--warn:#a15c00;--shadow:0 10px 30px rgba(15,23,42,.08)}
*{box-sizing:border-box} body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Yu Gothic UI","Meiryo",sans-serif;background:var(--bg);color:var(--text)}
header{background:linear-gradient(135deg,#9d1725,#d33b4b);color:#fff;padding:22px 24px;box-shadow:var(--shadow)}
header h1{margin:0;font-size:24px} header p{margin:7px 0 0;opacity:.9;font-size:13px}
main{max-width:1280px;margin:22px auto;padding:0 18px 40px}.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
h2{font-size:17px;margin:0 0 14px}.drop{border:2px dashed #b6c0ca;border-radius:14px;padding:28px;text-align:center;background:#fafbfc;transition:.2s;cursor:pointer}.drop.drag{border-color:var(--accent);background:#fff4f5}.drop strong{display:block;font-size:17px;margin-bottom:5px}.drop small{color:var(--muted)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.btn{border:0;border-radius:9px;padding:10px 14px;font-weight:700;cursor:pointer;background:#e9edf1;color:#26313d}.btn:hover{filter:brightness(.97)}.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent2)}.btn:disabled{opacity:.45;cursor:not-allowed}
.filebar{display:flex;justify-content:space-between;align-items:center;margin:14px 0 8px}.filelist{max-height:250px;overflow:auto;border:1px solid var(--line);border-radius:10px}.fileitem{display:grid;grid-template-columns:42px 1fr auto;gap:10px;align-items:center;padding:8px 10px;border-bottom:1px solid #eef1f4}.fileitem:last-child{border-bottom:0}.thumb{width:42px;height:42px;object-fit:cover;border-radius:7px;background:#eee}.fname{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fmeta{font-size:11px;color:var(--muted)}
.target-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.target{border:1px solid var(--line);border-radius:11px;padding:11px;background:#fbfcfd}.target.active{border-color:#df9ba3;background:#fff8f8}.target-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px}.target-title{display:flex;align-items:center;gap:7px;font-weight:700}.target-controls{display:grid;grid-template-columns:1fr 1fr;gap:7px}.target input[type=number],input[type=text],select,input[type=color]{width:100%;border:1px solid #cfd6dd;border-radius:8px;padding:8px;background:#fff}label.mini{font-size:11px;color:var(--muted);display:block;margin-bottom:3px}.suffix{grid-column:1/-1}
.options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.field{min-width:0}.range-row{display:grid;grid-template-columns:1fr 48px;gap:8px;align-items:center}.range-row output{text-align:right;font-size:12px;color:var(--muted)}
.preview-wrap{display:grid;grid-template-columns:1fr 1fr;gap:12px}.preview-box{border:1px solid var(--line);border-radius:10px;padding:10px;background:#fafafa}.preview-box h3{font-size:12px;color:var(--muted);margin:0 0 7px}.checker{height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:8px;background-color:#fff;background-image:linear-gradient(45deg,#eee 25%,transparent 25%),linear-gradient(-45deg,#eee 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eee 75%),linear-gradient(-45deg,transparent 75%,#eee 75%);background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0}.checker img,.checker canvas{max-width:100%;max-height:100%;object-fit:contain}.checker.editable{position:relative;cursor:grab;touch-action:none}.checker.editable.dragging{cursor:grabbing}.logo-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.logo-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.fileitem.selected{background:#fff1f3;outline:1px solid #e6a0a8}.fileitem{cursor:pointer}.logo-hint{font-size:11px;color:var(--muted);line-height:1.6;margin-top:8px}.logo-bg-tools{margin-top:12px;padding:12px;border:1px dashed var(--line);border-radius:10px;background:#fafafa}.logo-bg-preview{width:min(100%,520px);height:340px;border:1px solid var(--line);border-radius:8px;cursor:crosshair;background-color:#fff;background-image:linear-gradient(45deg,#eee 25%,transparent 25%),linear-gradient(-45deg,#eee 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eee 75%),linear-gradient(-45deg,transparent 75%,#eee 75%);background-size:14px 14px;background-position:0 0,0 7px,7px -7px,-7px 0}.sample-chip{display:inline-flex;align-items:center;gap:6px;font-size:12px}.sample-color{width:18px;height:18px;border-radius:4px;border:1px solid #999;background:#fff}.logo-drop{border:2px dashed #b6c0ca;border-radius:10px;padding:14px;text-align:center;background:#fafbfc;cursor:pointer;transition:.2s;min-height:78px;display:flex;flex-direction:column;align-items:center;justify-content:center}.logo-drop.drag{border-color:var(--accent);background:#fff4f5}.logo-drop strong{font-size:13px}.logo-drop small{font-size:11px;color:var(--muted);margin-top:3px}.preview-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.preview-head h2{margin:0}.logo-bg-tools h3{font-size:14px;margin:0 0 10px;color:var(--text)}
.status{margin-top:12px;padding:10px 12px;border-radius:9px;background:#f0f3f6;font-size:13px;min-height:40px}.status.ok{background:#eaf7f3;color:var(--ok)}.status.warn{background:#fff4df;color:var(--warn)}.progress{height:8px;background:#e6eaee;border-radius:999px;overflow:hidden;margin-top:8px}.progress>div{height:100%;width:0;background:var(--accent);transition:width .15s}.note{font-size:11px;color:var(--muted);line-height:1.6;margin-top:10px}.hidden{display:none!important}
@media(max-width:900px){
.grid{grid-template-columns:1fr}.preview-wrap{grid-template-columns:1fr}.target-grid{grid-template-columns:1fr}.checker{height:280px}
main{padding:0 10px 100px;margin-top:12px}.panel{padding:13px;border-radius:11px}.btn,.mode-btn{min-height:44px;padding:10px 13px}.row{gap:8px}.logo-grid{grid-template-columns:1fr}.tool-preview-column,.tool-controls-column{min-width:0}.logo-bg-preview,.product-bg-preview,#logoColorPreview{width:100%!important;height:auto!important;max-height:72vh}.options{grid-template-columns:1fr 1fr}.mode-switch{display:grid;grid-template-columns:1fr 1fr}.mode-switch .btn{grid-column:1/-1}.filelist{max-height:190px}header{padding:16px 14px}header h1{font-size:20px}input,select{font-size:16px!important}.mobile-sticky{position:sticky;bottom:8px;z-index:20;background:#fff;border:1px solid var(--line);padding:8px;border-radius:12px;box-shadow:0 8px 30px #0003}
}
@media(max-width:520px){.options{grid-template-columns:1fr}.preview-wrap{gap:8px}.checker{height:240px}.target-controls{grid-template-columns:1fr 1fr}.logo-layer{min-width:112px}.color-pair{align-items:stretch}.color-pair label{flex:1}.color-pair input[type=color]{width:58px;height:44px}}


.logo-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.logo-layer-list{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 10px;margin-bottom:10px}.logo-layer{flex:0 0 auto;min-width:130px;border:1px solid var(--line);border-radius:10px;padding:8px;background:#fafafa;cursor:pointer}.logo-layer.active{border-color:var(--accent);background:#fff3f4;box-shadow:0 0 0 1px var(--accent)}.logo-layer-head{display:flex;align-items:center;gap:6px}.logo-layer-name{font-size:12px;font-weight:700;max-width:82px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logo-layer small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.logo-layer-remove{margin-left:auto;border:0;background:transparent;cursor:pointer;font-size:15px;color:#667085}.logo-empty{padding:12px;border:1px dashed var(--line);border-radius:10px;color:var(--muted);font-size:12px;margin-bottom:10px}.product-bg-tools{margin-top:14px;padding:12px;border:1px dashed var(--line);border-radius:10px;background:#fafafa}.product-bg-tools h3{font-size:14px;margin:0 0 10px;color:var(--text)}.product-bg-preview{width:min(100%,620px);height:420px;border:1px solid var(--line);border-radius:8px;cursor:crosshair;background-color:#fff;background-image:linear-gradient(45deg,#eee 25%,transparent 25%),linear-gradient(-45deg,#eee 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eee 75%),linear-gradient(-45deg,transparent 75%,#eee 75%);background-size:14px 14px;background-position:0 0,0 7px,7px -7px,-7px 0}.live-badge{display:inline-flex;align-items:center;padding:3px 7px;border-radius:999px;background:#e7f8ee;color:#18794e;font-size:10px;font-weight:700;margin-left:6px}.logo-active-title{font-size:13px;font-weight:700;margin-bottom:8px}.logo-layer-vis{accent-color:var(--accent)}.logo-color-tools{margin-top:12px;padding:12px;border:1px dashed var(--line);border-radius:10px;background:#fafafa}.logo-color-tools h3{font-size:14px;margin:0 0 10px;color:var(--text)}.tool-preview-column{flex:1 1 440px;min-width:300px}.tool-controls-column{flex:1 1 260px;min-width:240px}.color-preview{cursor:crosshair}.color-pair{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin:9px 0}.color-pair label{display:flex;align-items:center;gap:7px;font-size:12px}.color-pair input[type=color]{width:48px;height:34px;padding:3px}.mode-switch{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:9px}.mode-btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 10px;font-weight:700;cursor:pointer}.mode-btn.active{background:#fff0f2;border-color:var(--accent);color:var(--accent)}#logoColorPreview{touch-action:none}.brush-size-row{margin-top:9px}.brush-cursor-note{font-size:11px;color:var(--muted);margin-top:6px}

.native-file-input{position:fixed!important;left:-10000px!important;top:-10000px!important;width:1px!important;height:1px!important;opacity:0!important}.file-label{display:inline-flex;align-items:center;justify-content:center;cursor:pointer;box-sizing:border-box}.camera-choice{display:none}@media(max-width:760px){.camera-choice{display:inline-flex}.desktop-folder{display:none!important}.mobile-file-actions{display:grid!important;grid-template-columns:1fr 1fr;gap:8px}.mobile-file-actions .btn{width:100%;min-height:48px}.mobile-file-actions #clearBtn{grid-column:1/-1}.logo-drop{display:none!important}}