Split and re-ordered SCSS files for easier overrides of defaults (#4)

* Split SCSS for easier changes
* Re-ordered SCSS files for easier overrides of defaults
* Fixed padding classes with auto value
* Added theme """stub"""

scss/defaults/text/defaults-text-basics.scss

@@ -0,0 +1,61 @@
+// NibblePoker CSS Theme - CC0 1.0 (Public Domain)
+
+
+/* Defaults > Text > Basics */
+
+* {
+	color: #{$color-text-generic};
+}
+
+nav, footer, header, .bkgd-grid {
+	* {
+		color: #{$color-text-surround};
+	}
+}
+
+p {
+	line-height: 1.2;
+}
+
+.t-logo-text {
+	font-size: 1.775em;
+	line-height: 1;
+}
+
+/* Site > Text > Targeted Rules > Sidebar */
+// Special rules for the sidebar and FontAwesome icons
+
+.sidebar-entry {
+	i {
+		width: 1.9rem !important;
+		// Required to prevent a size flicker when hiding/showing the sidebar.
+		// The about link is the most visible one.
+		min-width: 1.9rem !important;
+	}
+	
+	// Preventing a subtle line break when hiding/showing the sidebar.
+	overflow: hidden;
+	white-space: nowrap;
+	text-overflow: ellipsis;
+	
+	// Doesn't work, even with hyper-specific parent selectors...
+	//> i, > i:hover {
+	//	text-decoration: none !important;
+	//}
+}
+
+/* Site > Text > Targeted Rules > Headings */
+
+// And now for the headings, the exceptions keep popping up :,)
+// TODO: Add a simple and nicer divider.
+.heading-main {
+	> h2, > h3, >h4 {
+		> i {
+			//margin-left: 0.25rem;
+			margin-right: 0.4rem;
+			padding-right: 0.1rem;
+			width: 1.75rem !important;
+			text-align: center;
+		}
+	}
+}