feat: redesign biomarker display as a vertical list with status indicators and scale bars

frontend/src/index.css

@@ -422,6 +422,100 @@ select.input {
   font-size: 11px;
 }
 
+/* Biomarker List Layout */
+.biomarker-list {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.biomarker-row {
+  display: flex;
+  align-items: center;
+  gap: var(--space-md);
+  padding: var(--space-xs) var(--space-sm);
+  border-radius: var(--radius-sm);
+  transition: background-color 0.15s;
+}
+
+.biomarker-row:hover {
+  background-color: var(--bg-primary);
+}
+
+.biomarker-dot {
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--text-secondary);
+  flex-shrink: 0;
+}
+
+.biomarker-dot.status-low {
+  background: var(--warning);
+}
+
+.biomarker-dot.status-normal {
+  background: var(--success);
+}
+
+.biomarker-dot.status-high {
+  background: var(--error);
+}
+
+.biomarker-info {
+  flex: 0 0 240px;
+  min-width: 0;
+  display: flex;
+  flex-direction: row;
+  align-items: baseline;
+  gap: var(--space-xs);
+}
+
+.biomarker-info .biomarker-name {
+  font-size: 14px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.biomarker-info .biomarker-unit {
+  font-size: 11px;
+}
+
+/* Biomarker Scale Bar */
+.biomarker-scale {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  position: relative;
+  height: 16px;
+}
+
+.scale-bar {
+  width: 120px;
+  height: 6px;
+  border-radius: 3px;
+}
+
+.scale-bar.placeholder {
+  background: var(--border);
+}
+
+.scale-bar.range {
+  background: var(--accent);
+}
+
+.scale-marker {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  width: 3px;
+  background: var(--text-primary);
+  border-radius: 2px;
+  transform: translateX(-50%);
+  box-shadow: 0 0 2px rgba(0, 0, 0, 0.3);
+}
+
 /* App Layout with Sidebar */
 .app-layout {
   display: flex;

frontend/src/pages/Dashboard.tsx

@@ -85,7 +85,7 @@ export function DashboardPage() {
                                     }}
                                 >
                                     <div>
-                                        <span style={{ fontSize: '16px', fontWeight: 600 }}>{category.name}</span>
+                                        <span style={{ fontSize: '16px', fontWeight: 600, textTransform: 'uppercase' }}>{category.name}</span>
                                         <span className="text-secondary text-sm" style={{ marginLeft: 'var(--space-sm)' }}>
                                             ({categoryBiomarkers.length} biomarkers)
                                         </span>
@@ -102,15 +102,17 @@ export function DashboardPage() {
                                                 No biomarkers in this category
                                             </p>
                                         ) : (
-                                            <div style={{ display: 'flex', flexWrap: 'wrap', gap: 'var(--space-xs)' }}>
+                                            <div className="biomarker-list">
                                                 {categoryBiomarkers.map(biomarker => (
-                                                    <div
-                                                        key={biomarker.id}
-                                                        className="biomarker-chip"
-                                                        title={`${biomarker.name} (${biomarker.unit})`}
-                                                    >
-                                                        <span className="biomarker-name">{biomarker.name}</span>
-                                                        <span className="biomarker-unit">{biomarker.unit}</span>
+                                                    <div key={biomarker.id} className="biomarker-row">
+                                                        <div className="biomarker-dot" title="No data"></div>
+                                                        <div className="biomarker-info">
+                                                            <span className="biomarker-name">{biomarker.name}</span>
+                                                            <span className="biomarker-unit">{biomarker.unit}</span>
+                                                        </div>
+                                                        <div className="biomarker-scale">
+                                                            <div className="scale-bar placeholder"></div>
+                                                        </div>
                                                     </div>
                                                 ))}
                                             </div>