Clean up metric breakdown panel — compact grid, top 8 with show-all toggle

Replaced the large flex-wrap button cards with a tight CSS grid of compact
cells (130px min). Each cell shows metric ID, current %, and NC count only.
Category text and target removed to reduce noise.

Capped to top 8 metrics by default with a 'Show all N' toggle for the rest.
Removes visual clutter while keeping the data accessible.

frontend/src/components/pages/CCPMetricsPage.js

@@ -100,55 +100,55 @@ function StatsBar({ stats, onNonCompliantClick, ncExpanded }) {
 // ---------------------------------------------------------------------------
 // Metric Breakdown Panel (shown when Non-Compliant is clicked)
 // ---------------------------------------------------------------------------
-function MetricBreakdownPanel({ metrics, onSelectMetric }) {
+function MetricBreakdownPanel({ metrics }) {
+    const [showAll, setShowAll] = useState(false);
+
     if (!metrics || metrics.length === 0) return null;
 
     // Only show metrics with non_compliant > 0
     const ncMetrics = metrics.filter(m => m.non_compliant > 0);
     if (ncMetrics.length === 0) return null;
 
+    const TOP_COUNT = 8;
+    const displayMetrics = showAll ? ncMetrics : ncMetrics.slice(0, TOP_COUNT);
+    const hasMore = ncMetrics.length > TOP_COUNT;
+
     return (
         <div style={{ ...CARD_STYLE, marginBottom: '1.5rem' }}>
-            <div style={{ fontSize: '0.7rem', color: '#94A3B8', textTransform: 'uppercase', letterSpacing: '0.05em', marginBottom: '1rem' }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: '0.75rem' }}>
+                <div style={{ fontSize: '0.7rem', color: '#94A3B8', textTransform: 'uppercase', letterSpacing: '0.05em' }}>
                     Non-Compliant by Metric
                 </div>
-            <div style={{ display: 'flex', gap: '0.625rem', flexWrap: 'wrap' }}>
+                {hasMore && (
-                {ncMetrics.map(m => {
+                    <button
+                        onClick={() => setShowAll(!showAll)}
+                        style={{ background: 'none', border: 'none', color: PURPLE, fontSize: '0.7rem', cursor: 'pointer', padding: '0.2rem 0.5rem' }}
+                    >
+                        {showAll ? 'Show top 8' : `Show all ${ncMetrics.length}`}
+                    </button>
+                )}
+            </div>
+            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fill, minmax(130px, 1fr))', gap: '0.5rem' }}>
+                {displayMetrics.map(m => {
                     const pct = m.total > 0 ? (m.compliant / m.total) : 0;
                     const target = Number(m.target || 0);
                     const color = pct >= target ? '#10B981' : pct >= target * 0.85 ? '#F59E0B' : '#EF4444';
                     return (
-                        <button
+                        <div
                             key={m.metric_id}
-                            onClick={() => onSelectMetric(m.metric_id)}
                             style={{
-                                background: 'linear-gradient(135deg, rgba(30,41,59,0.95) 0%, rgba(15,23,42,0.98) 100%)',
+                                background: 'rgba(15, 23, 42, 0.7)',
-                                border: `1.5px solid ${color}40`,
+                                border: `1px solid ${color}30`,
-                                borderRadius: '0.5rem',
+                                borderRadius: '0.4rem',
-                                padding: '0.75rem 1rem',
+                                padding: '0.6rem 0.75rem',
-                                cursor: 'pointer',
-                                textAlign: 'left',
-                                transition: 'all 0.15s',
-                                minWidth: '140px',
-                                flex: '1 1 0',
-                                maxWidth: '200px',
                             }}
-                            onMouseEnter={e => { e.currentTarget.style.borderColor = color + '80'; e.currentTarget.style.background = `${color}10`; }}
-                            onMouseLeave={e => { e.currentTarget.style.borderColor = color + '40'; e.currentTarget.style.background = 'linear-gradient(135deg, rgba(30,41,59,0.95) 0%, rgba(15,23,42,0.98) 100%)'; }}
                         >
-                            <div style={{ fontFamily: 'monospace', fontSize: '0.9rem', fontWeight: '700', color: '#E2E8F0', marginBottom: '0.2rem' }}>
+                            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'baseline', marginBottom: '0.3rem' }}>
-                                {m.metric_id}
+                                <span style={{ fontFamily: 'monospace', fontSize: '0.8rem', fontWeight: '700', color: '#E2E8F0' }}>{m.metric_id}</span>
+                                <span style={{ fontSize: '0.55rem', color: '#475569', fontFamily: 'monospace' }}>{(pct * 100).toFixed(0)}%</span>
                             </div>
-                            <div style={{ fontSize: '0.6rem', color: '#475569', textTransform: 'uppercase', letterSpacing: '0.04em', marginBottom: '0.5rem' }}>
+                            <div style={{ fontSize: '1rem', fontWeight: '700', color }}>{m.non_compliant.toLocaleString()}</div>
-                                {m.category}
                         </div>
-                            <div style={{ fontSize: '1.1rem', fontWeight: '700', color: '#EF4444', marginBottom: '0.2rem' }}>
-                                {m.non_compliant.toLocaleString()}
-                            </div>
-                            <div style={{ fontSize: '0.6rem', color: '#64748B', fontFamily: 'monospace' }}>
-                                {(pct * 100).toFixed(0)}% / target {(target * 100).toFixed(0)}%
-                            </div>
-                        </button>
                     );
                 })}
             </div>
@@ -801,7 +801,6 @@ function DataManagementPanel({ onClose, onDataChanged }) {
                 <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: '1.5rem' }}>
                     <h2 style={{ fontSize: '1.1rem', fontWeight: '700', color: '#E2E8F0', margin: 0 }}>Manage Data</h2>
                     {/* ⚠️ CONVENTION: Use lucide-react <X /> icon instead of raw Unicode character */}
-                    {/* ⚠️ CONVENTION: Use lucide-react <X /> icon instead of raw Unicode character */}
                     <button onClick={onClose} style={{ background: 'none', border: 'none', color: '#64748B', cursor: 'pointer' }}>✕</button>
                 </div>
 
@@ -1052,14 +1051,7 @@ export default function CCPMetricsPage() {
 
                     {/* Metric breakdown (revealed when Non-Compliant is clicked) */}
                     {showMetricBreakdown && (
-                        <MetricBreakdownPanel
+                        <MetricBreakdownPanel metrics={stats.metric_breakdown} />
-                            metrics={stats.metric_breakdown}
-                            onSelectMetric={(metricId) => {
-                                // Find the first vertical that has this metric with non-compliant > 0
-                                // and navigate to it
-                                setShowMetricBreakdown(false);
-                            }}
-                        />
                     )}
 
                     {/* Charts row */}