:root{--bg: #f5f5f6;--surface: #ffffff;--surface-hover: #f2f2f3;--border: #d8d8dc;--border-hover: #bdbdc5;--text: #0e0e11;--text-dim: #5e5e67;--accent: #0e0e11;--accent-dim: #1f1f24;--accent-glow: rgba(15, 15, 20, .08);--danger: #b42318;--radius: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(0,0,0,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.02) 1px,transparent 1px);background-size:48px 48px;pointer-events:none;z-index:0}.container{position:relative;z-index:1;max-width:960px;margin:0 auto;padding:0 24px}header{padding:48px 0 20px;text-align:center}.logo{font-family:JetBrains Mono,monospace;font-size:clamp(13px,2.5vw,15px);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:16px;display:flex;align-items:center;justify-content:center;gap:8px}.logo 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svg{width:14px;height:14px;color:var(--accent)}.workspace-section{margin:16px 0 40px}.source-wrap{border:1px solid var(--border);border-radius:0;padding:12px;text-align:center;cursor:pointer;transition:all .3s ease;background:var(--surface);position:relative;overflow:hidden;width:100%;height:100%;min-height:0}.source-wrap:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,var(--accent-glow),transparent 70%);opacity:0;transition:opacity .3s ease;pointer-events:none}.source-wrap:hover,.source-wrap.drag-over{border-color:var(--border-hover);background:var(--surface-hover)}.source-wrap:hover:before,.source-wrap.drag-over:before{opacity:1}.source-empty{position:absolute;inset:0;padding:24px;display:flex;flex-direction:column;align-items:center;justify-content:center}.source-wrap.has-image .source-empty,.source-wrap img{display:none}.source-wrap.has-image img{display:block;width:100%;height:100%;max-height:100%;object-fit:contain;border-radius:8px}.drop-zone-icon{width:48px;height:48px;margin:0 auto 16px;color:var(--text-dim);transition:color .3s}.drop-zone:hover .drop-zone-icon{color:var(--accent)}.drop-zone-text{font-size:17px;font-weight:500;margin-bottom:8px}.drop-zone-hint{font-size:13px;color:var(--text-dim)}.drop-zone-hint kbd{background:#ececef;padding:2px 6px;border-radius:4px;font-family:JetBrains Mono,monospace;font-size:11px}#file-input{display:none}.processing-section{display:none;position:absolute;inset:0;background:#ffffffdb;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);align-items:center;justify-content:center;text-align:center;z-index:4}.processing-section.active{display:flex}.progress-container{width:min(360px,calc(100% - 24px));margin:0 auto;border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:12px}.progress-status{font-family:JetBrains 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14px;cursor:pointer}.mode-btn.active{background:#111116;color:#fff}.color-mode-controls{display:none;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 14px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff}.color-mode-active .color-mode-controls{display:flex}.color-instruction{font-size:12px;color:var(--text-dim)}.tolerance-control,.picked-color-row{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-dim)}.picked-color-swatch{width:18px;height:18px;border:1px solid var(--border);border-radius:4px;background:#fff}.source-wrap.color-pick-ready{cursor:crosshair}.panel-actions{padding:12px 16px 16px;border-top:1px solid var(--border);display:flex;gap:8px}.panel-actions-right{justify-content:flex-end}.btn{font-family:Inter,sans-serif;font-size:14px;font-weight:600;padding:10px 20px;border-radius:8px;border:none;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:8px}.btn svg{width:16px;height:16px}.btn-primary{background:#111116;color:#fff}.btn-primary:hover{background:var(--accent-dim);transform:translateY(-1px);box-shadow:0 6px 18px #0000002e}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-hover);background:var(--surface-hover)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}@media(max-width:600px){.comparison{grid-template-columns:1fr}}.comparison-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}.comparison-label{font-family:JetBrains Mono,monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim);padding:12px 16px;border-bottom:1px solid var(--border)}.comparison-img-wrap{padding:16px;display:flex;align-items:center;justify-content:center;height:360px;min-height:360px;overflow:hidden}.result-wrap{position:relative}.result-fullres-link{display:flex;align-items:center;justify-content:center;width:100%;height:100%;text-decoration:none}.result-placeholder{color:var(--text-dim);font-size:14px;font-family:JetBrains Mono,monospace}.checkerboard{background-image:linear-gradient(45deg,#f0f0f2 25%,transparent 25%),linear-gradient(-45deg,#f0f0f2 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#f0f0f2 75%),linear-gradient(-45deg,transparent 75%,#f0f0f2 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}.comparison-img-wrap img,.comparison-img-wrap canvas{max-width:100%;max-height:100%;object-fit:contain;border-radius:4px}.history-section{margin:24px 0 40px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:16px}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.history-header h2{font-size:15px;letter-spacing:.04em;text-transform:uppercase;font-family:Space Mono,monospace}.history-hint{color:var(--text-dim);font-size:12px}.history-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.history-empty{color:var(--text-dim);font-size:13px}.history-item{border:1px solid var(--border);background:#fff;border-radius:10px;overflow:hidden;position:relative}.history-item img{width:100%;aspect-ratio:16 / 10;object-fit:cover;display:block}.history-meta{padding:8px 10px 10px;display:flex;flex-direction:column;gap:4px}.history-title{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-sub{font-size:11px;color:var(--text-dim);font-family:JetBrains 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h2{font-size:22px;line-height:1.2;margin-bottom:10px;letter-spacing:-.01em}.seo-section p{font-size:14px;color:var(--text-dim);line-height:1.68;margin-bottom:12px}footer{border-top:1px solid var(--border);padding:32px 0;text-align:center;font-size:13px;color:var(--text-dim)}.error-msg{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:var(--danger);padding:12px 16px;border-radius:8px;font-size:14px;margin:16px 0;display:none}.error-msg.active{display:block}.crop-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:#0c0c1073;z-index:60}.crop-modal.active{display:flex}.crop-panel{width:min(900px,100%);max-height:92vh;overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px}.crop-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.crop-head h3{font-size:20px;font-weight:800}.crop-stage{position:relative;width:fit-content;max-width:100%;max-height:62vh;margin:0 auto;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:#fff;cursor:crosshair;-webkit-user-select:none;user-select:none}#crop-canvas{display:block;max-width:min(100%,860px);max-height:62vh;width:auto;height:auto}.crop-selection{position:absolute;border:2px solid #0e0e11;background:#ffffff14;pointer-events:none}.crop-help{margin-top:10px;font-size:13px;color:var(--text-dim)}.crop-inputs{margin-top:12px;display:grid;grid-template-columns:repeat(4,minmax(100px,1fr));gap:10px}.crop-inputs label{font-size:12px;color:var(--text-dim);display:flex;flex-direction:column;gap:6px}.crop-inputs input{border:1px solid var(--border);border-radius:8px;padding:8px;font-size:14px}.crop-actions{margin-top:12px;display:flex;justify-content:flex-end;gap:8px}