diff --git a/style/main.css b/style/main.css
index da452f1..5dd7745 100644
--- a/style/main.css
+++ b/style/main.css
@@ -2,12 +2,19 @@
    dashboard elsewhere in this stack (see
    ~/repos/infrastructure/gitea-custom-header.tmpl) - reused as-is
    (same files, same unicode-range split) rather than pulled from a
-   font CDN. */
+   font CDN.
+   font-display: optional, not swap, on all three: swap always shows
+   the fallback font first then reflows to Quicksand once it loads,
+   which is a real layout shift if that swap lands after the page is
+   already scrolled past that heading - reported as "text jumps" on
+   real mobile Safari. optional skips the swap entirely unless the
+   font is already cached/ready almost immediately, trading an
+   occasional fallback-font render for zero shift. */
 @font-face {
   font-family: "Quicksand";
   font-style: normal;
   font-weight: 600;
-  font-display: swap;
+  font-display: optional;
   src: url("/fonts/quicksand-semibold-latin.woff2") format("woff2");
   unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
@@ -15,7 +22,7 @@
   font-family: "Quicksand";
   font-style: normal;
   font-weight: 600;
-  font-display: swap;
+  font-display: optional;
   src: url("/fonts/quicksand-semibold-latin-ext.woff2") format("woff2");
   unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
 }
@@ -23,7 +30,7 @@
   font-family: "Quicksand";
   font-style: normal;
   font-weight: 600;
-  font-display: swap;
+  font-display: optional;
   src: url("/fonts/quicksand-semibold-vietnamese.woff2") format("woff2");
   unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
 }