Add initial mobile theme support

Changelog.md

@@ -12,6 +12,8 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
      - This is done via a verification email that's sent when you change your email address (even if your email address is the same when you change your preferences and you haven't yet verified it)
      - A new `email_verify_addresses` setting has been added to control the functionality
  - Added dark theme to the [downloader](https://starbeamrainbowlabs.com/labs/peppermint/download.php) (will be updated at the next stable release)
+ - Added initial mobile theme support to the default theme
+     - There's still a bunch of work to do in this department, but it's a bit of a challenge to do so without breaking desktop support
 
 ### Fixed
  - Fixed weighted word support on search query analysis debug page

themes/default/theme.css

@@ -282,3 +282,32 @@ summary { cursor: pointer; }
 .reply-box-container.active { padding: 1em; background: var(--bg-comments-4); }
 
 footer { padding: 2rem; }
+
+/* Small screen adjustments */
+@media (max-width: 480px) {
+	body {
+		margin: 0;
+	}
+	nav.top {
+		position: static;
+		flex-direction: column;
+	}
+	nav.mega-menu {
+		flex-direction: column;
+	}
+	nav.top > span:first-child {
+		border-top: 3px solid var(--accent-a3);
+	}
+	
+	main:not(.printable) {
+		padding: 1em 1em 0.5em 1em;
+	}
+	
+	.comments {
+		padding: 1em;
+	}
+	
+	footer {
+		padding: 1em;
+	}
+}