:root{color:#e9edf5;background:#17191d;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,select{font:inherit}button{border:1px solid #3b414b;color:#eef2fa;background:#272c34;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{display:grid;grid-template-columns:56px minmax(0,1fr) 320px;grid-template-rows:56px minmax(0,1fr);width:100vw;height:100vh;overflow:hidden}.top-bar{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;border-bottom:1px solid #343943;background:#1f232a}.brand,.top-actions,.button-row,.toggle{display:flex;align-items:center}.brand{gap:10px;min-width:0;font-weight:700;letter-spacing:0}.top-actions{gap:8px}.command,.button-row button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:0 12px;border-radius:6px}.command.primary{border-color:#c49b2c;color:#1c1b16;background:#f0ca57}.toolbar{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 8px;border-right:1px solid #343943;background:#20242b}.tool{display:grid;place-items:center;width:40px;height:40px;border-radius:6px}.tool.active{border-color:#7e96ff;background:#33406c}.tool.danger{margin-top:auto}.tool-divider{width:28px;height:1px;background:#3a404a}.canvas-stage{position:relative;min-width:0;min-height:0;background:#202225}.canvas-stage canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.canvas-stage canvas.mask-cursor{cursor:none}.canvas-stage canvas.pan-cursor{cursor:grab}.status-strip{position:absolute;left:12px;right:12px;bottom:12px;display:flex;justify-content:space-between;gap:16px;min-height:34px;padding:8px 10px;border:1px solid #3a404a;border-radius:6px;color:#dfe5ef;background:#191c21eb;font-size:13px}.side-panel{overflow-y:auto;border-left:1px solid #343943;background:#20242b}.side-panel section{padding:16px;border-bottom:1px solid #343943}.side-panel h2{margin:0 0 12px;color:#f2f5fb;font-size:14px;letter-spacing:0}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:6px}.segmented button{min-height:34px;border-radius:6px;font-size:13px}.segmented button.active{border-color:#8fa3ff;background:#34406a}.button-row{gap:8px;margin-top:12px}.button-row button{flex:1}.toggle{gap:8px;min-height:32px;color:#dce2ec}.toggle input{accent-color:#f0ca57}.stats-grid{display:grid;grid-template-columns:1fr auto;gap:8px 12px;color:#aeb8c8;font-size:13px}.stats-grid strong{color:#f2f5fb;font-weight:700}.readiness{margin-top:12px;padding:8px 10px;border:1px solid #3b414b;border-radius:6px;font-size:13px;font-weight:700}.readiness.ready{border-color:#4f9f70;color:#c8f1d6;background:#1f3a2a}.readiness.warning{border-color:#a78b45;color:#f3dfa0;background:#3a321f}.field{display:grid;gap:8px;margin-top:12px;color:#dce2ec;font-size:13px}.field input[type=range]{width:100%;accent-color:#f0ca57}.field select{min-height:36px;padding:0 10px;border:1px solid #3b414b;border-radius:6px;color:#eef2fa;background:#272c34}.note{margin:12px 0 0;color:#aeb8c8;font-size:13px;line-height:1.45}@media(max-width:900px){.app-shell{grid-template-columns:48px minmax(0,1fr);grid-template-rows:56px minmax(0,1fr) auto}.side-panel{grid-column:1 / -1;max-height:280px;border-top:1px solid #343943;border-left:0}.brand span{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}