.data-panel{width:320px;background:#2a2a2a;border-right:1px solid #444;padding:20px;overflow-y:auto;display:flex;flex-direction:column}.panel-header h2{font-size:20px;margin-bottom:20px;color:#fff}.panel-section{margin-bottom:24px}.panel-section h3{font-size:14px;color:#aaa;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.select-input{width:100%;padding:8px 12px;background:#333;border:1px solid #555;border-radius:4px;color:#fff;font-size:14px;cursor:pointer}.select-input:focus{outline:none;border-color:#4a9eff}.btn-primary,.btn-secondary{width:100%;padding:10px;margin-bottom:8px;border:none;border-radius:4px;font-size:14px;cursor:pointer;transition:all .2s}.btn-primary{background:#4a9eff;color:#fff}.btn-primary:hover{background:#3a8eef}.btn-secondary{background:#444;color:#fff}.btn-secondary:hover{background:#555}.cargo-list{max-height:300px;overflow-y:auto}.cargo-item{background:#333;padding:12px;margin-bottom:8px;border-radius:4px;border-left:3px solid #4a9eff}.cargo-name{font-weight:600;color:#fff;margin-bottom:6px}.cargo-details{font-size:12px;color:#aaa;margin-bottom:4px}.cargo-quantity{color:#4a9eff;margin-left:4px}.cargo-type{display:inline-block;padding:2px 8px;border-radius:3px;font-size:11px;margin-top:4px}.cargo-type.metal{background:#4a5568;color:#a0aec0}.cargo-type.fragile{background:#744210;color:#f6ad55}.cargo-type.normal{background:#2d3748;color:#cbd5e0}.stats{background:#333;padding:12px;border-radius:4px}.stat-item{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid #444}.stat-item:last-child{border-bottom:none}.stat-label{color:#aaa;font-size:13px}.stat-value{color:#4a9eff;font-weight:600;font-size:13px}.panel-footer{margin-top:auto;padding-top:20px}.help-text{font-size:11px;color:#666;line-height:1.6}.explode-control{background:#333;padding:16px;border-radius:4px}.slider-label{display:flex;justify-content:space-between;align-items:center;color:#fff;font-size:13px;margin-bottom:12px}.slider-value{color:#4a9eff;font-weight:600;font-size:14px}.slider-input{width:100%;height:6px;border-radius:3px;background:#555;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;margin-bottom:8px}.slider-input::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#4a9eff;cursor:pointer;transition:all .2s}.slider-input::-webkit-slider-thumb:hover{background:#5aaeff;transform:scale(1.1)}.slider-input::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#4a9eff;cursor:pointer;border:none;transition:all .2s}.slider-input::-moz-range-thumb:hover{background:#5aaeff;transform:scale(1.1)}.slider-labels{display:flex;justify-content:space-between;font-size:11px;color:#888}.slider-input:disabled{opacity:.5;cursor:not-allowed}.physics-control{background:#333;padding:16px;border-radius:4px}.switch-label{display:flex;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.switch-input{display:none}.switch-slider{position:relative;width:44px;height:24px;background:#555;border-radius:12px;transition:background .3s;margin-right:12px}.switch-slider:before{content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#fff;top:3px;left:3px;transition:transform .3s}.switch-input:checked+.switch-slider{background:#4a9eff}.switch-input:checked+.switch-slider:before{transform:translate(20px)}.switch-text{color:#fff;font-size:13px;font-weight:500}.physics-hint{margin-top:8px;font-size:11px;color:#888;line-height:1.4}.app{display:flex;width:100vw;height:100vh}.canvas-container{flex:1;position:relative}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#1a1a1a;color:#fff;overflow:hidden}#root{width:100vw;height:100vh}