diff --git a/CITATION.cff b/CITATION.cff
index 1616ad3..d0d8af3 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,7 +4,7 @@ title: "TRIMSP-NL Workbench"
 type: software
 version: 1.5.0
 date-released: 2026-08-28
-url: "http://musruser.psi.ch/TrimSP-NL/"
+url: "http://musruser.psi.ch/TRIMSP-NL/"
 repository-code: "https://gitea.psi.ch/LMU/TRIMSP"
 license: GPL-3.0-or-later
 authors:
diff --git a/README.md b/README.md
index a4b50d6..7849bfb 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ Repository metadata is also provided in [CITATION.cff](CITATION.cff).
 ### Supported platforms ###
 
 * [Linux]
-* Online at: http://musruser.psi.ch/TrimSP-NL/
+* Online at: http://musruser.psi.ch/TRIMSP-NL/
 * Source repository: https://gitea.psi.ch/LMU/TRIMSP
 
 ### Installation ###
diff --git a/TrimSPelec.js b/TrimSPelec.js
index a27a7fa..a6dc358 100644
--- a/TrimSPelec.js
+++ b/TrimSPelec.js
@@ -18,7 +18,7 @@ window.openElectronAuxiliaryWindow = openElectronAuxiliaryWindow;
 
 // Electron links always point to the public web application rather than a
 // machine-local file:// URL, so they can be sent directly to another user.
-var TRIMSP_CANONICAL_SHARE_URL = 'http://musruser.psi.ch/TrimSP-NL/';
+var TRIMSP_CANONICAL_SHARE_URL = 'http://musruser.psi.ch/TRIMSP-NL/';
 
 function encodeElectronSharedConfiguration(config) {
     let json = JSON.stringify(config);
diff --git a/TrimSPlib.js b/TrimSPlib.js
index e90ff32..e92052c 100644
--- a/TrimSPlib.js
+++ b/TrimSPlib.js
@@ -3128,8 +3128,22 @@ function showTransientWarning(message, targetElement, duration = 4000) {
     warning.textContent = message;
     if (targetElement) {
 	const rect = targetElement.getBoundingClientRect();
-	warning.style.left = `${Math.max(12, rect.left + window.scrollX)}px`;
-	warning.style.top = `${rect.bottom + window.scrollY + 8}px`;
+	const viewportMargin = 12;
+	const targetGap = 8;
+	const maximumLeft = Math.max(viewportMargin,
+	    window.innerWidth - warning.offsetWidth - viewportMargin);
+	const left = Math.min(Math.max(viewportMargin, rect.left), maximumLeft);
+	let top = rect.bottom + targetGap;
+
+	// Keep notifications inside the viewport, including for controls near its
+	// right and bottom edges. Fixed-position elements use viewport coordinates.
+	if (top + warning.offsetHeight > window.innerHeight - viewportMargin) {
+	    top = rect.top - warning.offsetHeight - targetGap;
+	}
+	top = Math.max(viewportMargin,
+	    Math.min(top, window.innerHeight - warning.offsetHeight - viewportMargin));
+	warning.style.left = `${left}px`;
+	warning.style.top = `${top}px`;
     }
     warning.classList.add('visible');
 
diff --git a/ZGUI.css b/ZGUI.css
index ac563cf..a6a6bae 100644
--- a/ZGUI.css
+++ b/ZGUI.css
@@ -580,7 +580,8 @@ input[type="button"]:hover {
     box-shadow: 0 7px 20px rgba(29, 43, 50, 0.17);
     color: #523c08;
     line-height: 1.35;
-    max-width: 380px;
+    box-sizing: border-box;
+    max-width: min(380px, calc(100vw - 24px));
     opacity: 0;
     padding: 9px 12px;
     pointer-events: none;
diff --git a/main.js b/main.js
index 8700046..6b3f5f8 100644
--- a/main.js
+++ b/main.js
@@ -156,7 +156,7 @@ function showAboutDialog(parentWindow) {
 	'',
 	'Project repository:',
 	'Gitea: gitea.psi.ch/LMU/TRIMSP',
-	'Web application: musruser.psi.ch/TrimSP-NL/'
+	'Web application: musruser.psi.ch/TRIMSP-NL/'
     ].join('\n');
 
     dialog.showMessageBox(parentWindow, {
@@ -507,7 +507,7 @@ ipcMain.on('openQuickStartWindow', (event, options) => {
 
 ipcMain.handle('copyConfigurationLink', async (event, url) => {
     if (typeof url !== 'string' || url.length > 500000
-	|| !url.startsWith('http://musruser.psi.ch/TrimSP-NL/')) {
+	|| !url.startsWith('http://musruser.psi.ch/TRIMSP-NL/')) {
 	throw new Error('Invalid configuration link');
     }
     clipboard.writeText(url);
diff --git a/package.json b/package.json
index 10c0428..2603194 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "plotly.js-dist": "^1.58.4"
   },
   "config": {},
-  "homepage": "http://musruser.psi.ch/TrimSP-NL/",
+  "homepage": "http://musruser.psi.ch/TRIMSP-NL/",
   "repository": {
     "type": "git",
     "url": "https://gitea.psi.ch/LMU/TRIMSP.git"