contrast added

ht_booking/src/controllers/calendar.rs

@@ -93,12 +93,13 @@ pub struct CalendarPage {
     pub rows: Vec<Row>,
 }
 
-/// Resolves the UI language from the `lang` cookie (`sk` or `en`, default `en`).
+/// Resolves the UI language from the `lang` cookie. Slovak is the default;
+/// English applies only when the cookie explicitly asks for it.
 #[must_use]
 pub fn current_lang(jar: &CookieJar) -> String {
     match jar.get("lang").map(|c| c.value().to_string()) {
-        Some(ref l) if l == "sk" => "sk".to_string(),
-        _ => "en".to_string(),
+        Some(ref l) if l == "en" => "en".to_string(),
+        _ => "sk".to_string(),
     }
 }