diff --git a/public/style.css b/public/style.css
index 9749e2c..23c4fad 100644
--- a/public/style.css
+++ b/public/style.css
@@ -150,7 +150,7 @@ input[type="file"] {
   width: 100%;
   padding: 0.6rem 0.75rem;
   font-family: var(--font);
-  font-size: 13px;
+  font-size: 16px;
   background: var(--white);
   border: var(--border);
   color: var(--black);
diff --git a/tests/integration/style.test.ts b/tests/integration/style.test.ts
index 9dd6bf1..b8a0f93 100644
--- a/tests/integration/style.test.ts
+++ b/tests/integration/style.test.ts
@@ -25,6 +25,12 @@ describe('public/style.css (file contents)', () => {
     expect(css).toContain('--font-mono');
     expect(css).toMatch(/\.share-box input\[readonly\][\s\S]*?font-family:\s*var\(--font-mono\)/);
   });
+
+  it('uses font-size >= 16px on text-entry inputs to prevent iOS focus-zoom', () => {
+    expect(css).toMatch(
+      /input\[type="text"\][\s\S]*?input\[type="password"\][\s\S]*?\{[\s\S]*?font-size:\s*(1[6-9]|[2-9]\d)px/
+    );
+  });
 });
 
 describe('GET /public/style.css', () => {