:root{--bg: #0f0f0f;--panel: #1a1a1a;--line: #2a2a2a;--text: #e0e0e0;--dim: #777;--accent: #e0e0e0}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,sans-serif;font-size:12px;height:100vh;overflow:hidden}.main{display:flex;height:100vh}.stage{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;background:var(--bg)}.view{display:block;max-width:100%;max-height:100%;box-shadow:0 0 0 1px var(--line)}.export-canvas{position:fixed;left:-9999px;top:0;width:4px;height:4px;opacity:.01;pointer-events:none}.panel{width:310px;flex-shrink:0;background:var(--panel);border-right:1px solid var(--line);padding:18px 16px;overflow-y:auto;max-height:100vh}.panel__title{font-size:13px;font-weight:500;letter-spacing:.5px;color:var(--text);margin-bottom:20px}.panel__title span{color:var(--dim)}.section{padding:14px 0;border-top:1px solid var(--line)}.section h2{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--dim);margin-bottom:10px;font-weight:500;cursor:pointer;-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:space-between}.section h2:after{content:"▾";font-size:11px;color:#444;transition:transform .2s}.section.collapsed h2:after{transform:rotate(-90deg)}.section.collapsed h2{margin-bottom:0}.section.collapsed>*:not(h2){display:none}.field{display:flex;flex-direction:column;gap:.2rem;margin-bottom:10px;font-size:11px}.field:last-child{margin-bottom:0}.field span{color:var(--dim);display:flex;justify-content:space-between;align-items:center}.field.row{flex-direction:row;align-items:center;gap:6px}.field--inline{flex-direction:row;align-items:center;justify-content:space-between;gap:.5rem}.field--inline span{flex:1;color:var(--dim)}output{color:var(--text);font-variant-numeric:tabular-nums}.hint{font-size:10px;color:#555;margin:-4px 0 10px;line-height:1.4}.muted{color:var(--dim);font-size:11px;margin:4px 0}.muted.small{font-size:10px;line-height:1.35}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:2px;margin-top:8px;background:var(--line);cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:var(--accent)}input[type=range]::-moz-range-thumb{width:12px;height:12px;border:none;border-radius:50%;background:var(--accent)}input[type=color]{width:100%;height:28px;margin-top:6px;background:#0d0d0d;border:1px solid var(--line);border-radius:3px;cursor:pointer;padding:0}input[type=number],input[type=text],select{width:100%;margin-top:6px;padding:5px 7px;background:#0d0d0d;border:1px solid var(--line);color:var(--text);font-family:inherit;font-size:11px;border-radius:3px}input[type=checkbox]{width:12px;height:12px;accent-color:var(--text);cursor:pointer;flex-shrink:0}input:focus,select:focus{outline:none;border-color:#444}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}button{background:#0d0d0d;border:1px solid var(--line);color:var(--dim);padding:6px 10px;font-family:inherit;font-size:11px;border-radius:3px;cursor:pointer;letter-spacing:.3px}button:hover:not(:disabled){border-color:#444;color:var(--text)}button:disabled{opacity:.4;cursor:not-allowed}.btn-row{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}.btn-row button{flex:1}.btn-file{position:relative;flex:1;display:flex;align-items:center;justify-content:center;background:#0d0d0d;border:1px solid var(--line);color:var(--dim);padding:6px 10px;font-family:inherit;font-size:11px;border-radius:3px;cursor:pointer;text-align:center}.btn-file:hover{border-color:#444;color:var(--text)}.btn-file input[type=file]{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;width:100%}