diff --git a/static/global.css b/static/global.css
index 9fe208a..5d5086d 100644
--- a/static/global.css
+++ b/static/global.css
@@ -97,6 +97,8 @@
     html[data-theme="dark"] .google-btn { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
     html[data-theme="dark"] .google-btn:hover { background: var(--surface-muted); }
     html[data-theme="dark"] body.auth-page { background: var(--background-color); }
+    /* Logo is donkerblauw op transparant: op een lichte plaat zetten zodat het leesbaar blijft */
+    html[data-theme="dark"] .auth-logo { background: #f1f5f9; padding: 18px 24px; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
     html[data-theme="dark"] mark { background: #854d0e; color: #fef9c3; }
 
     /* Pagina's met eigen pastelkleuren (gemarkeerde rijen, legendes, filters) */