:root{color:#fafafa;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--background:#09090b;--foreground:#fafafa;--muted:#18181b;--muted-foreground:#a1a1aa;--primary:#8b5cf6;--secondary:#3b82f6;--border:#27272a;--card:#0c0c0e;--green:#22c55e;--danger:#ef4444;--checker-base:#151820;--checker-mark:#222733;--checker-size:32px;background:#09090b;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft 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minmax(420px,468px);align-items:stretch}.control-panel,.results-panel,.sprite-workspace,.gif-panel{padding:24px}.panel-head{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.panel-head h3,.gif-panel h3{color:#fff;letter-spacing:0;margin:0;font-size:18px}.panel-head p{color:var(--muted-foreground);margin:6px 0 0;font-size:13px;line-height:1.5}.ghost-button{color:#d4d4d8;background:#ffffff08;border:1px solid #ffffff12;min-height:34px;padding:0 12px}.dropzone{color:#fff;cursor:pointer;text-align:center;background:#09090b47;border:2px dashed #ffffff1f;border-radius:20px;min-height:240px;padding:18px;transition:border-color .16s,background .16s,transform .16s;display:block;position:relative;overflow:hidden}#batchTool .dropzone{height:clamp(520px,60vh,720px);min-height:0}.dropzone:hover,.dropzone.dragging{background:#8b5cf614;border-color:#8b5cf6a6}#spriteTool .dropzone:hover,#spriteTool 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small{color:var(--muted-foreground);font-size:12px}.preset-row{flex-wrap:wrap;gap:8px;margin:14px 0;display:flex}.preset{min-height:34px;color:var(--muted-foreground);background:#ffffff08;border:1px solid #ffffff14;padding:0 12px}.preset.active,.preset:hover{color:#fff;background:#8b5cf62e;border-color:#8b5cf666;transform:none}.settings-grid,.sprite-controls{gap:14px;display:grid}.settings-grid{flex-wrap:wrap;align-items:stretch;gap:12px;margin-bottom:20px;display:flex}.sprite-controls{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:16px}.settings-grid label,.sprite-controls label{color:#e4e4e7;flex:188px;gap:8px;min-width:188px;font-size:13px;font-weight:700;display:grid}.compact-switch{border:1px solid var(--border);background:#09090b6b;border-radius:10px;min-height:42px;padding:0 12px}.compact-switch span{justify-content:flex-start}.sprite-metrics,.preview-meta{color:#bfdbfe;background:#3b82f614;border:1px solid #3b82f62e;border-radius:12px;min-height:44px;padding:10px 12px;font-size:12px;font-weight:700;line-height:1.5}.settings-grid label span{justify-content:space-between;gap:12px;display:flex}.settings-grid .color-control,.settings-grid .switch-control{grid-template-columns:1fr}.settings-grid .switch-control{border:1px solid var(--border);background:#09090b6b;border-radius:10px;align-items:center;min-height:42px;padding:0 12px;display:flex}.switch-control input{width:18px;height:18px}.switch-control span{justify-content:flex-start}output{color:var(--primary)}input[type=number]{border:1px solid var(--border);background:#09090b8f;border-radius:10px;width:100%;min-height:42px;padding:0 12px}input[type=color]{border:1px solid var(--border);background:#09090b8f;border-radius:10px;width:100%;min-height:42px;padding:5px}input[type=range]{width:100%;min-height:28px}.action-stack{gap:12px;display:grid}.confirm-panel{background:#8b5cf614;border:1px solid #8b5cf633;border-radius:16px;gap:10px;padding:12px;display:grid}#batchTool .confirm-panel{grid-template-columns:minmax(0,1fr) minmax(180px,220px);align-items:center}.confirm-panel span{color:#d8b4fe;font-size:13px;font-weight:700;line-height:1.5}.progress-panel{background:#3b82f614;border:1px solid #3b82f638;border-radius:16px;gap:10px;padding:12px 14px;display:grid}.progress-head{color:#bfdbfe;justify-content:space-between;gap:12px;font-size:12px;font-weight:700;display:flex}.progress-track{background:#ffffff14;border-radius:999px;height:8px;overflow:hidden}.progress-track div{border-radius:inherit;background:linear-gradient(90deg, var(--secondary), var(--primary));width:0%;height:100%;transition:width .18s}.primary-action,.secondary-action{color:#fff;min-height:52px;font-size:15px}.primary-action{background:var(--primary);box-shadow:0 0 32px #8b5cf64d}.primary-action:hover{background:#7c3aed;box-shadow:0 0 44px #8b5cf66b}.secondary-action{background:var(--secondary);box-shadow:0 0 26px #3b82f64d}.secondary-action:hover{background:#2563eb;box-shadow:0 0 36px #3b82f66b}.split-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}#batchTool .action-stack{gap:10px}.status-stack{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.status-stack span,.frame-summary{min-height:30px;color:var(--muted-foreground);background:#09090b6b;border:1px solid #ffffff12;border-radius:999px;align-items:center;padding:0 10px;font-size:12px;font-weight:700;display:inline-flex}#workStatus{color:#d8b4fe;background:#8b5cf61a;border-color:#8b5cf647}.is-busy #workStatus{color:#93c5fd;background:#3b82f61a;border-color:#3b82f652}.asset-gallery{grid-template-columns:minmax(0,1fr);grid-auto-rows:minmax(0,1fr);align-items:stretch;gap:16px;height:clamp(520px,60vh,720px);min-height:0;max-height:none;padding-right:0;display:grid;overflow:hidden}.asset-gallery.empty{height:clamp(520px,60vh,720px);min-height:0;color:var(--muted-foreground);text-align:center;border:1px dashed #ffffff1a;border-radius:18px;place-items:center;font-weight:700;display:grid}.asset-card{background:#09090b7a;border:1px solid #ffffff12;border-radius:18px;grid-template-rows:minmax(0,1fr) 78px 42px;height:100%;min-height:0;max-height:100%;margin:0;transition:transform .16s,border-color .16s,box-shadow .16s;display:grid;overflow:hidden}.asset-card:hover{border-color:#ffffff21;transform:translateY(-2px);box-shadow:0 16px 36px #00000052}.asset-card.selected{border-color:#8b5cf68c;box-shadow:0 0 0 1px #8b5cf638,0 16px 36px #00000052}.asset-preview,.canvas-stage,.gif-preview{background-color:var(--checker-base);background-image:conic-gradient(var(--checker-mark) 25%, transparent 0 50%, var(--checker-mark) 0 75%, transparent 0);background-size:var(--checker-size) var(--checker-size)}.asset-preview{place-items:center;height:100%;min-height:0;padding:12px;display:grid;overflow:hidden}.asset-card figcaption{border-top:1px solid #ffffff0f;align-content:start;gap:4px;min-width:0;min-height:0;margin:0;padding:12px;display:grid}.asset-card strong,.asset-card small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.asset-card button{flex:none}.asset-card strong{color:#fff;font-size:13px}.asset-card small{color:var(--muted-foreground);font-size:12px}.asset-tag{color:#d8b4fe;background:#8b5cf624;border-radius:999px;justify-self:start;padding:3px 8px;font-size:11px;font-weight:800}.asset-card button{background:var(--primary);align-self:end;width:calc(100% - 20px);min-height:34px;margin:0 10px 10px}.sprite-workspace,.gif-panel{min-height:650px}.sprite-drop{min-height:160px;margin-bottom:18px}.canvas-stage{border:1px solid #ffffff12;border-radius:18px;place-items:center;min-height:430px;display:grid;overflow:hidden}#sheetCanvas{width:100%;max-height:460px;display:block}.gif-panel{grid-template-rows:auto auto 1fr auto auto auto;gap:14px;min-width:0;display:grid}.gif-panel h3{border-bottom:1px solid #ffffff12;align-items:center;gap:8px;padding-bottom:16px;display:flex}.gif-panel h3 svg{color:var(--secondary)}.gif-preview{border:1px solid #ffffff12;border-radius:18px;place-items:center;min-height:260px;padding:18px;display:grid;position:relative;overflow:hidden}.gif-preview div{color:var(--muted-foreground);text-align:center;place-items:center;gap:12px;font-size:13px;font-weight:800;display:grid}.gif-preview [hidden]{display:none!important}.gif-preview svg{color:#3b82f6b3}.gif-preview img{max-width:100%;max-height:100%;image-rendering:pixelated}.gif-preview[data-bg=dark]{background:#101014}.gif-preview[data-bg=light]{background:#f4f4f5}.gif-preview[data-bg=light] div{color:#52525b}#previewCanvas{object-fit:contain;width:auto;max-width:100%;height:auto;max-height:100%;image-rendering:pixelated;display:block}.preview-toolbar{grid-template-columns:minmax(140px,1.05fr) repeat(2,minmax(0,1fr));align-items:end;gap:12px;display:grid}.preview-toolbar>button{grid-row:span 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output{color:#93c5fd;text-align:right;min-width:60px;font-size:12px;font-weight:800}.frame-summary{justify-content:center;min-height:36px}:root[data-theme=light] .app-header{background:#ffffffc7;border-bottom-color:#11182714}:root[data-theme=light] .ambient-one{background:#6d5dfc29}:root[data-theme=light] .ambient-two{background:#0ea5e926}:root[data-theme=light] .brand strong,:root[data-theme=light] .hero h1,:root[data-theme=light] .tool-title h2,:root[data-theme=light] .panel-head h3,:root[data-theme=light] .gif-panel h3,:root[data-theme=light] .dropzone,:root[data-theme=light] .source-card strong,:root[data-theme=light] .asset-card strong{color:#111827}:root[data-theme=light] .local-pill,:root[data-theme=light] .tool-switcher,:root[data-theme=light] .glass-panel,:root[data-theme=light] #batchTool .settings-grid{background:#ffffffc2;border-color:#11182714;box-shadow:0 24px 70px #0f172a1a}:root[data-theme=light] .local-pill,:root[data-theme=light] .ghost-button,:root[data-theme=light] .settings-grid label,:root[data-theme=light] .sprite-controls label,:root[data-theme=light] .preview-toolbar label{color:#334155}:root[data-theme=light] .dropzone,:root[data-theme=light] .asset-gallery.empty,:root[data-theme=light] .canvas-stage{background-color:#ffffff9e;border-color:#0f172a24}:root[data-theme=light] .dropzone:hover,:root[data-theme=light] .dropzone.dragging{background:#6d5dfc14}:root[data-theme=light] .source-card,:root[data-theme=light] .asset-card,:root[data-theme=light] .compact-switch,:root[data-theme=light] .settings-grid .switch-control,:root[data-theme=light] .preview-toolbar select{background:#ffffffd1;border-color:#0f172a1a}:root[data-theme=light] input[type=number],:root[data-theme=light] input[type=color],:root[data-theme=light] .preview-toolbar select{color:#172033;background:#f8fafc;border-color:#d8dee8;box-shadow:inset 0 1px #ffffffe6,0 1px 2px #0f172a0a}:root[data-theme=light] input[type=number]:focus,:root[data-theme=light] input[type=color]:focus,:root[data-theme=light] .preview-toolbar select:focus{background:#fff;border-color:#6d5dfc73}:root[data-theme=light] input[type=color]{padding:4px}:root[data-theme=light] input[type=color]::-webkit-color-swatch-wrapper{padding:0}:root[data-theme=light] input[type=color]::-webkit-color-swatch{border:1px solid #cbd5e1;border-radius:7px}:root[data-theme=light] input[type=range]{accent-color:#7c6ff3}:root[data-theme=light] input[type=range]::-webkit-slider-runnable-track{background:#edf1f6;border:1px solid #cbd5e1;border-radius:999px;height:6px}:root[data-theme=light] input[type=range]::-webkit-slider-thumb{appearance:none;background:#7c6ff3;border:3px solid #fff;border-radius:999px;width:18px;height:18px;margin-top:-7px;box-shadow:0 2px 8px #4f46e538}:root[data-theme=light] input[type=range]::-moz-range-track{background:#edf1f6;border:1px solid #cbd5e1;border-radius:999px;height:6px}:root[data-theme=light] input[type=range]::-moz-range-thumb{background:#7c6ff3;border:3px solid #fff;border-radius:999px;width:14px;height:14px;box-shadow:0 2px 8px #4f46e538}:root[data-theme=light] .settings-grid .switch-control,:root[data-theme=light] .compact-switch{color:#243044;background:#f8fafc;border-color:#d8dee8;box-shadow:0 1px 2px #0f172a0a}:root[data-theme=light] .switch-control input[type=checkbox]{accent-color:#6d5dfc}:root[data-theme=light] output{color:#635bdf}:root[data-theme=light] .source-card figcaption,:root[data-theme=light] .asset-card figcaption,:root[data-theme=light] .gif-panel h3{border-color:#0f172a14}:root[data-theme=light] .ghost-button,:root[data-theme=light] .preset{background:#f8fafce6;border-color:#0f172a1a}:root[data-theme=light] .preset.active,:root[data-theme=light] .preset:hover{color:#4338ca;background:#6d5dfc1f;border-color:#6d5dfc47}:root[data-theme=light] .status-stack span,:root[data-theme=light] .frame-summary{background:#f8fafceb;border-color:#0f172a1a}:root[data-theme=light] #workStatus{color:#5b21b6;background:#6d5dfc1a;border-color:#6d5dfc38}:root[data-theme=light] .is-busy #workStatus{color:#0369a1;background:#0ea5e91c;border-color:#0ea5e942}:root[data-theme=light] .sprite-metrics,:root[data-theme=light] .preview-meta{color:#075985;background:#0ea5e917;border-color:#0ea5e938}:root[data-theme=light] .preview-scrubber output{color:#0369a1}:root[data-theme=light] .preview-loading{color:#075985;background:#ffffffe0;border-color:#0ea5e933}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=1100px){.batch-grid,.sprite-grid{grid-template-columns:1fr}#batchTool .control-panel>.panel-head,#batchTool .settings-grid,#batchTool .dropzone,#batchTool .preset-row,#batchTool .action-stack,#batchTool .results-panel{grid-area:auto/1/auto/-1}#batchTool .results-panel{order:2}.sprite-workspace,.gif-panel{min-height:auto}}@media 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