diff --git a/src/routes/memory/+page.svelte b/src/routes/memory/+page.svelte
index 47938b1..0cc24de 100644
--- a/src/routes/memory/+page.svelte
+++ b/src/routes/memory/+page.svelte
@@ -134,7 +134,6 @@
 		/* Memory uses the version palette's blue as its accent. */
 		--accent: #2a78d6;
 		width: 100%;
-		max-width: 1200px;
 	}
 
 	h1 {
@@ -224,9 +223,15 @@
 		border-bottom: 1px solid var(--border-subtle);
 	}
 
+	/* At most two columns: each track is at least half the row (minus the gap),
+	   so a third never fits. When half the row is narrower than 480px, there is
+	   one column. The outer min() keeps that column from overflowing on phones. */
 	.charts-grid {
 		display: grid;
-		grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
+		grid-template-columns: repeat(
+			auto-fit,
+			minmax(min(100%, max(480px, calc((100% - var(--space-4)) / 2))), 1fr)
+		);
 		gap: var(--space-4);
 	}
 
diff --git a/src/routes/memory/ProbeChart.svelte b/src/routes/memory/ProbeChart.svelte
index 0326b84..81276d5 100644
--- a/src/routes/memory/ProbeChart.svelte
+++ b/src/routes/memory/ProbeChart.svelte
@@ -57,7 +57,7 @@
 	/* Fixed height with maintainAspectRatio false, so the grid rows line up
 	   regardless of how many legend entries each chart has. */
 	.chart-wrapper {
-		height: var(--chart-height-sm);
+		height: var(--chart-height);
 		position: relative;
 	}