Improve responsive nav experience

_includes/_head.html

@@ -46,6 +46,9 @@
 	<script src="{{ site.url }}/assets/js/vendor/respond.min.js"></script>
 <![endif]-->
 
+<!-- Modernizr -->
+<script src="{{ site.url }}/assets/js/vendor/modernizr-2.7.1.custom.min.js"></script>
+
 <!-- Icons -->
 <!-- 16x16 -->
 <link rel="shortcut icon" href="{{ site.url }}/favicon.ico">

_includes/_navigation.html

@@ -3,12 +3,11 @@
 		<a href="{{ site.url }}">{{ site.title }}</a>
 	</div><!-- /.site-name -->
 	<div class="top-navigation">
-		<nav role="navigation">
+		<nav role="navigation" id="site-nav" class="nav">
 		    <ul>
 		        {% for link in site.links %}
 				<li><a href="{% if link.external %}{{ link.url }}{% else %}{{ site.url }}{{ link.url }}{% endif %}" {% if link.external %}target="_blank"{% endif %}>{{ link.title }}</a></li>
 		        {% endfor %}
-		        <li><i class="icon-feed"></i> <a href="{{ site.url }}/feed.xml" title="Atom/RSS feed">Feed</a>
 		    </ul>
 		</nav>
 	</div><!-- /.top-navigation -->

assets/js/_main.js

@@ -1,3 +1,34 @@
+/*! Responsive Menu */
+// http://tympanus.net/codrops/2013/05/08/responsive-retina-ready-menu/
+//  The function to change the class
+var changeClass = function (r,className1,className2) {
+  var regex = new RegExp("(?:^|\\s+)" + className1 + "(?:\\s+|$)");
+  if( regex.test(r.className) ) {
+    r.className = r.className.replace(regex,' '+className2+' ');
+    }
+    else{
+    r.className = r.className.replace(new RegExp("(?:^|\\s+)" + className2 + "(?:\\s+|$)"),' '+className1+' ');
+    }
+    return r.className;
+};  
+//  Creating our button in JS for smaller screens
+var menuElements = document.getElementById('site-nav');
+menuElements.insertAdjacentHTML('afterBegin','<button type="button" role="button" id="menutoggle" class="navtoogle lines-button x" aria-hidden="true"><span class="lines"></span>menu</button>');
+
+//  Toggle the class on click to show / hide the menu
+document.getElementById('menutoggle').onclick = function() {
+  changeClass(this, 'navtoogle active', 'navtoogle');
+};
+// http://tympanus.net/codrops/2013/05/08/responsive-retina-ready-menu/comment-page-2/#comment-438918
+document.onclick = function(e) {
+  var mobileButton = document.getElementById('menutoggle'),
+    buttonStyle =  mobileButton.currentStyle ? mobileButton.currentStyle.display : getComputedStyle(mobileButton, null).display;
+
+  if(buttonStyle === 'block' && e.target !== mobileButton && new RegExp(' ' + 'active' + ' ').test(' ' + mobileButton.className + ' ')) {
+    changeClass(mobileButton, 'navtoogle active', 'navtoogle');
+  }
+};
+
 /*! Plugin options and other jQuery stuff */
 
 // FitVids options

assets/less/page.less

@@ -18,10 +18,12 @@ body {
 	margin-bottom: 1em;
 	float: none;
 	display: block;
+	.font-rem(24);
 	@media @600px {
 		.grid(12,2);
 		.prefix(12,0.5);
 		.suffix(12,0.5);
+		.font-rem(16);
 	}
 	@media @1382px {
 		.grid(12,1.5);
@@ -44,22 +46,161 @@ body {
 		.grid(12,8);
 	}
 	ul {
-		list-style: none;
 		margin: 0;
 		padding: 0;
+		clear: both;
+		list-style-type: none;
 	}
 	li {
+		display: block;
 		list-style-type: none;
+		border-bottom: 1px solid lighten(@black,80);
+		border-bottom: 1px solid fade(@black,10);
+		.font-rem(16);
+		&:last-child {
+			border-bottom: 0 solid transparent;
+		}
+		@media @600px {
 			display: inline;
 			margin-right: 25px;
 			white-space: nowrap;
+			border-bottom: 0 solid transparent;
+		}
 		a { 
+			display: block;
+			padding: 10px 0;
 			decoration: none;
 			border-bottom: 0 solid transparent;
 			.transition(all .2s);
+			@media @600px {
+				display: inline;
+				padding: 0;
 			}
 		}
 	}
+}
+// Navicon lines
+@button-size: 1.5rem;
+.line() {
+	display: inline-block;
+	width: @button-size;
+	height: @button-size/7;
+	// line color
+	background: @white;
+	border-radius: @button-size/14;
+	transition: .3s;
+}
+.lines-button {
+	padding: @button-size/4 @button-size/2;
+	transition: .3s;
+	cursor: pointer;
+	user-select: none;
+	border-radius: @button-size/7;
+}
+.lines-button:hover {
+	opacity: 1;
+}
+.lines-button:active {
+	transition: 0;
+}
+.lines {
+	margin-right: 10px;
+	margin-bottom: @button-size/5;
+	// create middle line
+	.line();
+	position: relative;
+	// create the upper and lower lines as pseudo-elements of the middle line
+	&:before,
+	&:after {
+		.line();
+		position: absolute;
+		left: 0;
+		content: '';
+		-webkit-transform-origin: @button-size/14 center;
+		transform-origin: @button-size/14 center;
+	}
+	&:before { top: @button-size/4; }
+	&:after { top: -@button-size/4; }
+}
+.lines-button:hover {
+	opacity: 1;
+	.lines {
+		&:before { top: @button-size/3.5; }
+		&:after { top: -@button-size/3.5; }
+	}
+}
+.lines-button.x.active .lines {
+	// hide the middle line
+	background: transparent;
+	// overlap the lines by setting both their top values to 0
+	&:before,
+	&:after {
+		-webkit-transform-origin: 50% 50%;
+		transform-origin: 50% 50%;
+		top: 0;
+		width: @button-size;
+	}
+	// rotate the lines to form the x shape
+	&:before {
+		-webkit-transform: rotate3d(0,0,1,45deg);
+		transform: rotate3d(0,0,1,45deg);
+	}
+	&:after {
+		-webkit-transform: rotate3d(0,0,1,-45deg);
+		transform: rotate3d(0,0,1,-45deg);
+	}
+}
+// Style the toggle menu link and hide it
+.nav .navtoogle {	
+	.font-rem(18);
+	font-weight: normal;
+	background-color: @black;
+	color: @white;	
+	border: none;
+	cursor: pointer;
+	@media @600px {
+		display: none;
+	}
+}
+.nav button {
+	border: none;
+	background: none;
+}
+.navtoogle i {
+	z-index:-1;
+}
+.icon-menu {
+	position: relative;
+	top: 3px;
+	line-height: 0;
+}
+// When JavaScript is disabled, we hide the toggle button
+.no-js .nav .navtoggle {
+	display: none;
+}
+// When JavaScript is disabled, we show the menu
+.no-js .nav ul {
+	max-height: 30em;
+	overflow: hidden;
+}
+// When JavaScript is enabled, we hide the menu
+.js .nav ul {
+	max-height: 0;
+	overflow: hidden;
+	@media @600px {
+		max-height: 30em;
+	}
+}
+// Displaying the menu when the user has clicked on the button
+.js .nav .active + ul {		
+	max-height: 30em;
+	overflow: hidden;
+	-webkit-transition: max-height .4s;
+	-moz-transition: max-height .4s;
+	-o-transition: max-height .4s;
+	-ms-transition: max-height .4s;
+	transition: max-height .4s;
+}
 #main {
 	counter-reset: captions;
 	.container();