add fallback for old browsers

index.css

@@ -132,4 +132,14 @@ body {
     color: var(--foreground);
     text-decoration: none;
     user-select: none;
+}
+
+@supports not (background: conic-gradient(from 0deg in hsl longer hue, red 0 0)) {
+    html::before {
+        background: linear-gradient(-45deg, #204000 0%, #404000 100%);
+    }
+
+    .link-content::before, .link-content::after {
+        background: white;
+    }
 }