*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#1a1a2e;--surface:#16213e;--surface2:#0f3460;--text:#e0e0e0;--text-dim:#89a;--accent:#e94560;--accent2:#0f3460;--border:#2a3a5c}body{background:var(--bg);color:var(--text);height:100vh;font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:15px;overflow:hidden}#root{flex-direction:column;height:100vh;display:flex}.login-page,.patients-page{background:linear-gradient(135deg,#1a1a2e,#16213e);justify-content:center;align-items:center;height:100vh;display:flex}.login-card,.patients-card{background:var(--surface);border-radius:12px;flex-direction:column;gap:16px;width:400px;padding:40px;display:flex;box-shadow:0 8px 32px #0006}.login-card h1{text-align:center;font-size:26px}.login-card h2{color:var(--text-dim);text-align:center;font-size:15px;font-weight:400}.input{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:6px;padding:10px 14px;font-size:15px}.input:focus{border-color:var(--accent);outline:none}.btn{border:1px solid var(--border);background:var(--surface2);color:var(--text);cursor:pointer;border-radius:6px;padding:8px 16px;font-size:14px;transition:background .2s}.btn:hover{background:#1a4a8a}.btn-primary{background:var(--accent);border-color:var(--accent);font-weight:600}.btn-primary:hover{background:#d13850}.btn-logout{background:0 0;border-color:#555}.error{color:#e94560;font-size:13px}.patient-item{border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:16px;transition:background .2s}.patient-item:hover{background:var(--surface2)}.patient-name{font-size:17px;font-weight:600}.patient-meta{color:var(--text-dim);margin-top:4px;font-size:14px}.viewer-page{flex-direction:column;height:100vh;display:flex}.toolbar{background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:8px 16px;display:flex}.toolbar-left{align-items:center;gap:12px;display:flex}.toolbar-title{font-size:18px;font-weight:600}.study-badge{background:var(--surface2);border-radius:4px;padding:2px 8px;font-size:14px}.mode-badge{background:var(--accent);border-radius:4px;padding:2px 8px;font-size:14px}.toolbar-center{align-items:center;gap:16px;display:flex}.toolbar-right{align-items:center;display:flex}.opacity-control{align-items:center;gap:8px;font-size:14px;display:flex}.opacity-control input[type=range]{width:80px}.viewer-main{flex:1;display:flex;overflow:hidden}.viewport-area{background:#000;flex-direction:column;flex:1;display:flex;position:relative}.viewport-container{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;flex:1;position:relative;overflow:hidden}.viewport-container canvas,.viewport-container img{-webkit-user-drag:none}.viewport-container.pan-mode{cursor:grab}.viewport-mpr{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;width:50%;height:50%;display:block;position:absolute}.viewport-mpr.maximized{z-index:50;width:100%!important;height:100%!important;transition:none!important}#mpr-axial{top:0;left:0}#mpr-sagittal{top:0;right:0}#mpr-coronal{bottom:0;left:0}#mpr-3d{bottom:0;right:0}.mpr-label{z-index:60;color:#fffc;cursor:pointer;-webkit-user-select:none;user-select:none;background:#0009;border:1px solid #0000;border-radius:3px;padding:3px 10px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s;display:block;position:absolute}.mpr-label:hover{color:#fff;background:#e94560b3;border-color:#fff6}#mpr-label-axial{top:6px;left:25%;transform:translate(-50%)}#mpr-label-sagittal{top:25%;right:6px;transform:translateY(-50%)}#mpr-label-coronal{bottom:6px;left:25%;transform:translate(-50%)}#mpr-label-3d{bottom:6px;left:75%;transform:translate(-50%)}.mpr-overlay{pointer-events:none;z-index:150;width:50%;height:50%;display:block;position:absolute}.mpr-overlay.maximized{z-index:151;width:100%!important;height:100%!important}#mpr-axial-overlay{top:0;left:0}#mpr-sagittal-overlay{top:0;right:0}#mpr-coronal-overlay{bottom:0;left:0}#mpr-3d-overlay{bottom:0;right:0}.slice-indicator{color:var(--text-dim);text-align:center;background:#000000b3;flex-shrink:0;padding:6px 12px;font-size:14px}.side-panels{background:var(--surface);border-left:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:0;width:280px;display:flex;overflow-y:auto}.panel{border-bottom:1px solid var(--border);padding:16px}.panel h3{margin-bottom:12px;font-size:16px}.panel h4{color:var(--text-dim);margin:12px 0 6px;font-size:14px}.toggle-all-row{align-items:center;gap:8px;margin-bottom:8px;display:flex}.toggle-all-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:4px;padding:5px 14px;font-size:13px}.toggle-all-btn:hover{opacity:.85}.toggle-all-count{color:var(--text-dim);font-size:13px}.structure-list{flex-direction:column;gap:2px;max-height:400px;display:flex;overflow-y:auto}.structure-section-title{color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;padding:6px 4px 2px;font-size:13px;font-weight:600}.structure-item{cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:4px;align-items:center;gap:8px;padding:4px;font-size:14px;display:flex}.structure-item:hover{background:#ffffff0d}.structure-item input[type=checkbox]{cursor:pointer}.color-swatch{border-radius:3px;flex-shrink:0;width:12px;height:12px}.alpha-slider{margin-bottom:12px}.alpha-slider label{margin-bottom:4px;font-size:14px;display:block}.alpha-slider input[type=range]{width:100%}.ww-section{margin-bottom:12px}.preset-buttons{gap:4px;margin-bottom:8px;display:flex}.btn-preset{border:1px solid var(--border);background:var(--bg);color:var(--text-dim);cursor:pointer;border-radius:4px;padding:3px 8px;font-size:13px}.btn-preset.active{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-preset:hover:not(.active){background:var(--surface2);color:var(--text)}.ww-slider{margin-bottom:6px}.ww-slider label{color:var(--text-dim);margin-bottom:2px;font-size:13px;display:block}.ww-slider input[type=range]{width:100%}.loading-screen{height:100vh;color:var(--text-dim);z-index:9999;background:var(--bg);justify-content:center;align-items:center;font-size:18px;display:flex;position:fixed;inset:0}.btn-accept{color:#fff;cursor:pointer;background:#2e7d32;border:1px solid #4caf50;border-radius:6px;padding:10px 24px;font-size:15px;font-weight:600;transition:background .2s}.btn-accept:hover{background:#388e3c}.btn-reject{color:#fff;cursor:pointer;background:#b71c1c;border:1px solid #e94560;border-radius:6px;padding:10px 24px;font-size:15px;font-weight:600;transition:background .2s}.btn-reject:hover{background:#d32f2f}.dashboard-card{background:var(--surface);border-radius:12px;flex-direction:column;gap:0;padding:30px;display:flex;box-shadow:0 8px 32px #0006}.quadrant-overlay-container{z-index:100;position:absolute;inset:0}.quadrant-layer,.quadrant-layer-clipped{position:absolute;inset:0}.quadrant-crosshair{pointer-events:none;z-index:200;position:absolute;inset:0}.review-actions-panel{margin-top:auto}