diff --git a/styles.css b/styles.css
index 06b7a73..c14a3a8 100644
--- a/styles.css
+++ b/styles.css
@@ -13,48 +13,24 @@
 	text-align: right;
 }
 
-@media (prefers-color-scheme: light) {
-	.file-diff__top-line__bg {
-		background-color: #d9f4ef;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff_top-line__character {
-		background-color: #99e1d3;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff__bottom-line__bg {
-		background-color: #d9edff;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff_bottom-line__character {
-		background-color: #b1d4f2;
-		border-radius: 0.25rem; /* 4px */
-	}
-}
-
-@media (prefers-color-scheme: dark) {
-	.file-diff__top-line__bg {
-		background-color: #25403b;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff_top-line__character {
-		background-color: #236559;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff__bottom-line__bg {
-		background-color: #25394b;
-		border-radius: 0.25rem; /* 4px */
-	}
-
-	.file-diff_bottom-line__character {
-		background-color: #2e618d;
-		border-radius: 0.25rem; /* 4px */
-	}
+.file-diff__top-line__bg {
+	background-color: color-mix(in srgb, var(--background-primary), #0fc 15%);
+	border-radius: 0.25rem; /* 4px */
+}
+
+.file-diff_top-line__character {
+	background-color: color-mix(in srgb, var(--background-primary), #0fc 50%);
+	border-radius: 0.25rem; /* 4px */
+}
+
+.file-diff__bottom-line__bg {
+	background-color: color-mix(in srgb, var(--background-primary), #08f 15%);
+	border-radius: 0.25rem; /* 4px */
+}
+
+.file-diff_bottom-line__character {
+	background-color: color-mix(in srgb, var(--background-primary), #08f 50%);
+	border-radius: 0.25rem; /* 4px */
 }
 
 .file-diff__no-bottom-border {
@@ -68,7 +44,7 @@
 }
 
 .file-diff__action-line {
-	color: #919191;
+	color: var(--text-muted);
 }
 
 /* Tailwind CSS */