:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-panel: #1a2332;--border: #334155;--border-light: #475569;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #3b82f6;--accent-dim: #1e3a5f;--xapp-lb: #2f80ed;--xapp-ad: #eb5757;--xapp-ho: #27ae60;--xapp-bf: #f5a623;--status-green: #22c55e;--status-yellow: #eab308;--status-red: #ef4444;--radius: 8px;--radius-sm: 4px;--shadow: 0 2px 8px rgba(0, 0, 0, .3);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .4);--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", 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ease;font-family:inherit}.btn:hover{background:#3d4f65;border-color:var(--border-light)}.btn:active{transform:scale(.97)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:#2563eb}.btn.danger{border-color:#7f1d1d;color:var(--status-red)}.btn.danger:hover{background:#450a0a}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;border-radius:2px;background:var(--bg-tertiary);outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--bg-secondary);cursor:pointer;transition:box-shadow .15s}input[type=range]::-webkit-slider-thumb:hover{box-shadow:0 0 0 4px #3b82f633}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--bg-secondary);cursor:pointer}select{width:100%;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-primary);color:var(--text-primary);font-size:12px;font-family:inherit;cursor:pointer;outline:none}select:focus{border-color:var(--accent)}.toggle-row{display:flex;gap:4px;background:var(--bg-primary);border-radius:var(--radius-sm);padding:2px;border:1px solid var(--border)}.toggle-btn{flex:1;padding:5px 10px;border:none;border-radius:3px;background:transparent;color:var(--text-muted);font-size:11px;font-weight:600;cursor:pointer;transition:all .15s;font-family:inherit}.toggle-btn.active{background:var(--accent);color:#fff}.budget-meter{width:100%;height:20px;background:var(--bg-primary);border-radius:10px;overflow:hidden;border:1px solid var(--border);position:relative;margin:6px 0}.budget-meter-fill{height:100%;border-radius:10px;transition:width .3s ease,background-color .3s 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canvas{width:100%;height:28px;border-radius:3px;background:var(--bg-secondary)}.collapsible-header{display:flex;align-items:center;gap:8px;cursor:pointer;padding:6px 0;-webkit-user-select:none;user-select:none}.collapsible-header .arrow{font-size:10px;color:var(--text-muted);transition:transform .2s}.collapsible-header .arrow.open{transform:rotate(90deg)}.collapsible-body{overflow:hidden;max-height:0;transition:max-height .25s ease}.collapsible-body.open{max-height:300px}.collapsible-body-inner{padding:6px 0 2px 18px}.config-row{display:flex;justify-content:space-between;align-items:center;font-size:11px;padding:2px 0}.config-row .config-key{color:var(--text-muted)}.config-row .config-val{font-family:var(--font-mono);color:var(--text-primary);font-size:11px}.composition-result{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;margin-top:8px}.composition-result .comp-label{font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;margin-bottom:2px}.composition-result .comp-value{font-size:16px;font-weight:800;font-family:var(--font-mono)}.charts-panel canvas{width:100%;height:120px;border-radius:var(--radius);background:var(--bg-primary);border:1px solid var(--border);margin-top:6px}.chart-title{font-size:11px;color:var(--text-secondary);font-weight:600;margin-top:10px}.chart-title:first-child{margin-top:0}.tick-display{font-family:var(--font-mono);font-size:11px;color:var(--text-muted);text-align:center;padding:4px 0}.overall-accuracy{font-size:20px;font-weight:800;font-family:var(--font-mono);text-align:center;padding:4px 0;color:var(--accent)}@media (max-width: 900px){#app{flex-direction:column}.canvas-area{flex:none;height:50vh}.sidebar{flex:1;max-width:none;min-width:auto;border-left:none;border-top:1px solid var(--border)}}@media (max-width: 600px){.canvas-area{height:40vh}.panel{padding:10px 12px}.xapp-metrics-grid{grid-template-columns:1fr}}