diff --git a/app/assets/css/opensquawk-glass.css b/app/assets/css/opensquawk-glass.css
index 9716374..9915b1e 100644
--- a/app/assets/css/opensquawk-glass.css
+++ b/app/assets/css/opensquawk-glass.css
@@ -24,6 +24,7 @@
     background: var(--glass-noise),
     var(--glass-bg);
     border: 1px solid var(--glass-border);
+    overflow: hidden;
     border-radius: var(--glass-radius);
     box-shadow: inset 0 1px 0 var(--glass-highlight),
     0 1px 0 rgba(255, 255, 255, .02),
@@ -90,14 +91,6 @@
     0 10px 26px color-mix(in srgb, var(--accent) 35%, transparent);
 }
 
-.btn.primary::after {
-    content: "";
-    position: absolute;
-    inset: 0;
-    border-radius: inherit;
-    background: linear-gradient(180deg, rgba(255, 255, 255, .28), transparent 40%);
-    pointer-events: none;
-}
 
 /* Chips – feiner Rand, leicht leuchtend */
 .chip {
diff --git a/public/docs/external-apis.md b/public/docs/external-apis.md
new file mode 100644
index 0000000..b6c4f3e
--- /dev/null
+++ b/public/docs/external-apis.md
@@ -0,0 +1,7 @@
+
+GET https://api.vatsim.net/v2/members/1857215/flightplans
+GET https://metar.vatsim.net/metar.php?id=EDDF
+GET https://data.vatsim.net/v3/vatsim-data.json
+GET https://api.openaip.net/api/airports?icao=EDDF
+GET https://api.core.openaip.net/api/airports?search=eddf
+mit x-openaip-api-key