diff --git a/src/components/terminal/terminalManager.js b/src/components/terminal/terminalManager.js
index 5f2d0d1ce..f9d22dd2d 100644
--- a/src/components/terminal/terminalManager.js
+++ b/src/components/terminal/terminalManager.js
@@ -668,8 +668,9 @@ class TerminalManager {
 		const RESIZE_DEBOUNCE = 200;
 		let lastResizeTime = 0;
 
-		let lastWidth = 0;
-		let lastHeight = 0;
+		let lastWidth = null;
+		let lastHeight = null;
+
 		const handleResize = (entries) => {
 			const now = Date.now();
 			const entry = entries && entries[0];
@@ -677,6 +678,21 @@ class TerminalManager {
 			const width = cr?.width ?? terminalFile.content?.clientWidth ?? 0;
 			const height = cr?.height ?? terminalFile.content?.clientHeight ?? 0;
 
+			// Skip resize events when container is hidden (via any method: inline style, CSS class, etc.)
+			const isHidden =
+				getComputedStyle(terminalFile.content).display === "none" ||
+				terminalFile.content?.offsetHeight === 0;
+			if (isHidden) {
+				return;
+			}
+
+			if (lastWidth === null || lastHeight === null) {
+				lastWidth = width;
+				lastHeight = height;
+
+				return;
+			}
+
 			// Clear any pending resize
 			if (resizeTimeout) {
 				clearTimeout(resizeTimeout);