feat(ui): replace card grid with row-based results and plain-language metric labels

Replace the school card grid with a scannable row list that shows 3x more
results per screen. Each row shows: school name + R,W&M % with trend,
area/type meta, and reading/writing/maths progress scores with plain-English
band labels (e.g. "above average") instead of raw numbers.

Add lib/metrics.ts as a single source of truth for plain-language metric
explanations and the progressBand() helper. Map view toggle is unchanged.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nextjs-app/components/SchoolRow.module.css

@@ -0,0 +1,264 @@
+.row {
+  display: flex;
+  background: var(--bg-card, white);
+  border: 1px solid var(--border-color, #e5dfd5);
+  border-left: 3px solid transparent;
+  border-radius: 8px;
+  padding: 0.875rem 1rem;
+  transition: border-color 0.15s ease, box-shadow 0.15s ease;
+  animation: rowFadeIn 0.3s ease-out both;
+}
+
+.row:hover {
+  border-left-color: var(--accent-coral, #e07256);
+  box-shadow: 0 2px 8px rgba(26, 22, 18, 0.06);
+}
+
+.rowInCompare {
+  border-left-color: var(--accent-teal, #2d7d7d);
+  background: var(--bg-secondary, #f3ede4);
+}
+
+@keyframes rowFadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(8px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.rowMain {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 0.3rem;
+}
+
+/* Line 1 */
+.rowTop {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+}
+
+.schoolName {
+  flex: 1;
+  min-width: 0;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--text-primary, #1a1612);
+  text-decoration: none;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.schoolName:hover {
+  color: var(--accent-coral, #e07256);
+}
+
+/* Score block: number + trend + label stacked */
+.scoreBlock {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+  flex-shrink: 0;
+  gap: 0;
+  min-width: 60px;
+  text-align: right;
+}
+
+.scoreValue {
+  font-size: 1.0625rem;
+  font-weight: 700;
+  color: var(--text-primary, #1a1612);
+  font-family: var(--font-playfair), 'Playfair Display', serif;
+  line-height: 1.2;
+  display: flex;
+  align-items: center;
+  gap: 0.25rem;
+}
+
+.scoreNA {
+  font-size: 1rem;
+  color: var(--text-muted, #8a847a);
+}
+
+.scoreLabel {
+  font-size: 0.6875rem;
+  color: var(--text-muted, #8a847a);
+  white-space: nowrap;
+}
+
+/* Trend arrow */
+.trend {
+  display: inline-flex;
+  align-items: center;
+  margin-left: 2px;
+}
+
+.trendUp {
+  color: var(--accent-teal, #2d7d7d);
+}
+
+.trendDown {
+  color: var(--accent-coral, #e07256);
+}
+
+.trendStable {
+  color: var(--text-muted, #8a847a);
+}
+
+/* Action buttons */
+.rowActions {
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+  flex-shrink: 0;
+}
+
+.btnView {
+  padding: 0.3125rem 0.625rem;
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--text-secondary, #5c564d);
+  border: 1px solid var(--border-color, #e5dfd5);
+  border-radius: 5px;
+  text-decoration: none;
+  transition: all 0.15s ease;
+  white-space: nowrap;
+}
+
+.btnView:hover {
+  background: var(--bg-secondary, #f3ede4);
+  color: var(--text-primary, #1a1612);
+  border-color: var(--text-muted, #8a847a);
+}
+
+.btnCompare {
+  padding: 0.3125rem 0.625rem;
+  font-size: 0.8125rem;
+  font-weight: 600;
+  color: white;
+  background: var(--accent-coral, #e07256);
+  border: none;
+  border-radius: 5px;
+  cursor: pointer;
+  transition: background 0.15s ease;
+  white-space: nowrap;
+}
+
+.btnCompare:hover {
+  background: var(--accent-coral-dark, #c45a3f);
+}
+
+.btnRemove {
+  padding: 0.3125rem 0.625rem;
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--text-secondary, #5c564d);
+  background: var(--bg-secondary, #f3ede4);
+  border: 1px solid var(--border-color, #e5dfd5);
+  border-radius: 5px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+  white-space: nowrap;
+}
+
+.btnRemove:hover {
+  background: var(--border-color, #e5dfd5);
+  color: var(--text-primary, #1a1612);
+}
+
+/* Line 2: Meta tags */
+.rowMeta {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 0.25rem 0;
+  font-size: 0.8rem;
+  color: var(--text-muted, #8a847a);
+}
+
+.rowMeta span:not(:last-child)::after {
+  content: '·';
+  margin: 0 0.4rem;
+  color: var(--border-color, #e5dfd5);
+}
+
+.distanceBadge {
+  display: inline-block;
+  padding: 0.0625rem 0.375rem;
+  font-size: 0.75rem;
+  font-weight: 600;
+  background: var(--accent-teal, #2d7d7d);
+  color: white;
+  border-radius: 3px;
+  margin-left: 0.25rem;
+}
+
+/* Line 3: Progress scores */
+.rowProgress {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.25rem 1rem;
+  margin-top: 0.125rem;
+}
+
+.progressItem {
+  font-size: 0.8rem;
+  color: var(--text-secondary, #5c564d);
+}
+
+.progressValue {
+  color: var(--text-primary, #1a1612);
+  margin: 0 0.25rem;
+}
+
+.progressBand {
+  font-style: normal;
+  font-size: 0.75rem;
+  color: var(--text-muted, #8a847a);
+}
+
+/* Mobile */
+@media (max-width: 640px) {
+  .row {
+    padding: 0.75rem;
+    border-radius: 6px;
+  }
+
+  .rowTop {
+    flex-wrap: wrap;
+    gap: 0.5rem;
+  }
+
+  .schoolName {
+    flex-basis: 100%;
+    white-space: normal;
+    font-size: 0.9375rem;
+  }
+
+  .scoreBlock {
+    flex-direction: row;
+    align-items: center;
+    gap: 0.375rem;
+    flex-basis: auto;
+  }
+
+  .scoreLabel {
+    display: none;
+  }
+
+  .rowActions {
+    margin-left: auto;
+  }
+
+  .rowProgress {
+    gap: 0.375rem 0.75rem;
+  }
+}