The page zooms, keeps its height on phones and isn't reloaded by a pull

The viewport no longer forbids zooming (maximum-scale=1, user-scalable=no kept text at 10-12px out of reach), and it
covers the screen with the keyboard resizing the content. The app is 100dvh tall instead of 100vh, so its bottom isn't
under a phone browser's bar, and a pull past the top no longer reloads it (overscroll-behavior-y). New Styles/touch.css
holds what a touch screen gets, under (pointer: coarse) only: for now field text at 16px, so iOS doesn't zoom into a
focused field.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

Styles/base.css

@@ -5,6 +5,12 @@
 		outline: none;
 	}
 
+	/* The page never scrolls itself (the feed and the pages scroll inside), so a pull past its top would only make a phone
+	   reload the app. Only vertically: a sideways overscroll is the trackpad's back gesture. */
+	html, body {
+		overscroll-behavior-y: none;
+	}
+
 	details > summary::-webkit-details-marker {
 		color: var(--color-base-content);
 	}