.mpr-viewport-container{width:100%;height:100%;display:flex;flex-direction:column;background:#000;position:relative}.mpr-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;height:100%;width:100%}.mpr-viewport-wrapper{position:relative;background:#111;overflow:hidden;border:1px solid #333}.mpr-viewport-wrapper[data-orientation=axial]{border-color:#3b82f6}.mpr-viewport-wrapper[data-orientation=sagittal]{border-color:#ef4444}.mpr-viewport-wrapper[data-orientation=coronal]{border-color:#22c55e}.mpr-viewport{width:100%;height:100%;position:relative}.mpr-viewport canvas{width:100%!important;height:100%!important}.mpr-viewport-label{position:absolute;top:8px;left:8px;background:#000000b3;color:#fff;padding:4px 8px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-radius:4px;pointer-events:none;z-index:10}.mpr-viewport-wrapper[data-orientation=axial] .mpr-viewport-label{color:#3b82f6}.mpr-viewport-wrapper[data-orientation=sagittal] .mpr-viewport-label{color:#ef4444}.mpr-viewport-wrapper[data-orientation=coronal] .mpr-viewport-label{color:#22c55e}.mpr-position-label{position:absolute;bottom:8px;right:8px;background:#000000b3;color:#fff;padding:2px 6px;font-size:11px;font-family:monospace;border-radius:3px;pointer-events:none;z-index:10}.mpr-controls-panel{background:#1a1a1a;border:1px solid #444;padding:12px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.mpr-control-section{border-bottom:1px solid #333;padding-bottom:12px}.mpr-control-section:last-child{border-bottom:none}.mpr-control-section h4{margin:0 0 8px;font-size:13px;font-weight:600;color:#ccc;text-transform:uppercase;letter-spacing:.5px}.mpr-control-section button{width:100%;padding:6px 12px;margin-bottom:4px;background:#2a2a2a;border:1px solid #444;color:#ddd;font-size:12px;cursor:pointer;border-radius:4px;transition:all .15s ease}.mpr-control-section button:hover:not(:disabled){background:#3a3a3a;border-color:#555}.mpr-control-section button:disabled{opacity:.4;cursor:not-allowed}.mpr-control-section select,.mpr-control-section input[type=range]{width:100%;padding:4px 8px;background:#2a2a2a;border:1px solid #444;color:#ddd;font-size:12px;border-radius:4px}.mpr-control-section input[type=range]{padding:0;margin-top:8px}.mpr-status{font-size:11px;color:#999;line-height:1.6}.mpr-coords{margin-top:8px;padding-top:8px;border-top:1px solid #333;font-family:monospace;color:#bbb}.mpr-loading-overlay{position:absolute;inset:0;background:#000000e6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:#ddd;font-size:14px;z-index:100}.mpr-spinner{width:40px;height:40px;border:3px solid #333;border-top-color:#3b82f6;border-radius:50%;animation:mpr-spin 1s linear infinite}@keyframes mpr-spin{to{transform:rotate(360deg)}}.mpr-viewport-error{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;background:#1a1a1a;color:#ddd;text-align:center}.error-icon{font-size:48px}.error-message{font-size:16px;font-weight:600;color:#ef4444}.error-hint{font-size:13px;color:#888}.mpr-crosshair{pointer-events:none}.mpr-crosshair-line{stroke-width:1;opacity:.8}.mpr-crosshair-center{fill:none;stroke-width:2}.mpr-crosshair-handle{cursor:move;pointer-events:all}@media (max-width: 768px){.mpr-grid{grid-template-columns:1fr;grid-template-rows:repeat(4,1fr)}.mpr-controls-panel{order:-1;flex-direction:row;flex-wrap:wrap;padding:8px}.mpr-control-section{flex:1;min-width:140px;border-bottom:none;border-right:1px solid #333;padding:0 8px}.mpr-control-section:last-child{border-right:none}}