diff --git a/docs/astro.config.mjs b/docs/astro.config.mjs
index d6d9f4e4a9..a4123a6ad9 100644
--- a/docs/astro.config.mjs
+++ b/docs/astro.config.mjs
@@ -196,7 +196,7 @@ export default defineConfig({
           tag: "link",
           attrs: {
             rel: "stylesheet",
-            href: "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap",
+            href: "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap",
           },
         },
         // Plausible analytics — defer keeps it off the critical path
diff --git a/docs/src/fonts/dammit-sans-v0.3-bold.otf b/docs/src/fonts/dammit-sans-v0.3-bold.otf
new file mode 100755
index 0000000000..44cf6cfecb
Binary files /dev/null and b/docs/src/fonts/dammit-sans-v0.3-bold.otf differ
diff --git a/docs/src/styles/cli.css b/docs/src/styles/cli.css
index 26794bf449..ea247d8e28 100644
--- a/docs/src/styles/cli.css
+++ b/docs/src/styles/cli.css
@@ -3,6 +3,27 @@
    Base theme provided by @sentry/starlight-theme
    ========================================================================== */
 
+/* Brand fonts: Dammit Sans (headings, self-hosted below) + Rubik (body, self-
+   hosted by @sentry/starlight-theme as "Rubik Variable") + JetBrains Mono
+   (code). Dammit Sans is a display face with a limited glyph set, so headings
+   fall back to Rubik for any missing glyph (e.g. # / * \ | ^ _ ` ~). */
+@font-face {
+  font-family: "Dammit Sans";
+  /* Relative URL so Vite bundles + hashes it and respects the site `base`
+     (root-absolute paths break under the PR-preview base, e.g. /_preview/pr-N). */
+  src: url("../fonts/dammit-sans-v0.3-bold.otf") format("opentype");
+  font-weight: 700;
+  font-style: normal;
+  font-display: swap;
+}
+
+/* Headings use the Dammit Sans display font; body/code are unaffected. */
+.sl-markdown-content :is(h1, h2, h3, h4, h5, h6):not(:where(.not-content *)),
+.page-title-wrapper h1,
+.hero h1 {
+  font-family: var(--sl-font-headings);
+}
+
 :root,
 :root[data-theme="dark"],
 :root[data-theme="light"] {
@@ -10,8 +31,12 @@
   /* Sentry brand purple (#7553FF), the mid-anchor of the CLI banner gradient */
   --sl-color-accent-rgb: 117 83 255;
 
-  /* CLI uses Inter + JetBrains Mono */
-  --sl-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+  /* Body uses the theme's self-hosted Rubik Variable; headings use Dammit Sans;
+     code stays JetBrains Mono. */
+  --sl-font: "Rubik Variable", -apple-system, BlinkMacSystemFont, "Segoe UI",
+    sans-serif;
+  --sl-font-headings: "Dammit Sans", "Rubik Variable", -apple-system,
+    BlinkMacSystemFont, "Segoe UI", sans-serif;
   --sl-font-mono: "JetBrains Mono", ui-monospace, monospace;
 
   /* Match the original CLI docs header sizing. */