*,
*:after,
*::before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

body  {
	background: #95a5a6;
}

.container {
	padding: 80px;
}

.bt-menu-trigger-out {
	display: block;
	width: 300px;
	max-width: 100%;
	height: 170px;
	border: 4px solid #fff;
	margin: 40px auto 0px auto;
	cursor: pointer;
}

.bt-menu-trigger-out span {
	font-size: 3em;
	line-height: 155px;
}

.bt-menu-trigger-out:focus span {
	opacity: 1;
}

.bt-menu {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 0;
	border-width: 0px;
	border-style: solid;
	border-color: #333;
	background-color: rgba(255,255,255,0);
	-webkit-backface-visibility: hidden;
	-webkit-transition: border-width 0.3s, background-color 0.3s, height 0s 0.3s;
	transition: border-width 0.3s, background-color 0.3s, height 0s 0.3s;
}

.bt-menu.bt-menu-open {
	height: 100%;
	border-width: 100px 30px 100px 30px;
	background-color: rgba(255,255,255,0.9);
	-webkit-transition: border-width 0.3s, background-color 0.3s;
	transition: border-width 0.3s, background-color 0.3s;
}

.bt-overlay {
	position: absolute;
	width: 100%;
}

.bt-menu-open .bt-overlay {
	height: 100%;
}

.bt-overlay:after {
	content: 'Video playing';
	position: absolute;
	left: 0;
	width: 100%;
	text-align: center;
	line-height: 5em;
	top: 50%;
	margin-top: -2.5em;
	font-size: 5em;
	z-index: 100;
	color: rgba(104,115,116,0.4);
	letter-spacing: 1px;
	text-transform: uppercase;
	white-space: nowrap;
	opacity: 0;
	visibility: hidden;
	-webkit-transition: opacity 0.3s, visbility 0s 0.3s;
	transition: opacity 0.3s, visbility 0s 0.3s;
}

.bt-menu-open .bt-overlay:after {
	visibility: visible;
	opacity: 1;
	-webkit-transition: opacity 0.3s 0.2s;
	transition: opacity 0.3s 0.2s;
}

.bt-menu-trigger {
	position: fixed;
	top: 20px;
	right: 20px;
	z-index: 100;
	display: block;
	width: 50px;
	height: 50px;
	cursor: pointer;
	z-index: 200;
	-webkit-transform: translateY(-100%) translateY(-20px);
	transform: translateY(-100%) translateY(-20px);
	-webkit-transition: -webkit-transform 0.3s;
	transition: transform 0.3s;
}

.bt-menu-open .bt-menu-trigger {
	-webkit-transform: translate3d(0,0,0);
	transform: translate3d(0,0,0);	
}

.bt-menu-trigger span {
	position: absolute;
	top: 50%;
	left: 0;
	display: block;
	width: 100%;
	height: 4px;
	font-size: 0px;
	-webkit-touch-callout: none;
	-webkit-user-select: none;
	-khtml-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
}

.bt-menu-trigger span:before,
.bt-menu-trigger span:after {
	position: absolute;
	left: 0;
	width: 100%;
	height: 100%;
	background: #fff;
	content: '';
}

.bt-menu-trigger span:before {
	-webkit-transform: rotate(45deg);
	transform: rotate(45deg);
}

.bt-menu-trigger span:after {
	-webkit-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.bt-menu ul {
	list-style: none;
	padding: 0;
	margin: 0;
	text-align: center;
	position: fixed;
	left: 50%;
	z-index: 200;
	white-space: nowrap;
	-webkit-touch-callout: none;
	-webkit-user-select: none;
	-khtml-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	visibility: hidden;
	-webkit-transform: translateX(-50%);
	transform: translateX(-50%);
	-webkit-transition: visibility 0s 0.3s;
	transition: visibility 0s 0.3s;
}

.bt-menu.bt-menu-open ul {
	visibility: visible;
	-webkit-transition: none;
	transition: none;
}

.bt-menu ul li {
	display: inline-block;
	line-height: 100px;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
}

.bt-menu ul li a {
	text-decoration: none;
	outline: none;
	display: block;
}

/* Top Menu */
.bt-menu ul.bt-menu-top {
	top: 0;
}

.bt-menu ul.bt-menu-top li {
	font-size: 0;
	-webkit-transform: translateY(-100%) scale(0);
	transform: translateY(-100%) scale(0);
	-webkit-transition: -webkit-transform 0.3s;
	transition: transform 0.3s;
}

.bt-menu.bt-menu-open ul.bt-menu-top li {
	-webkit-transform: translateY(0) scale(1);
	transform: translateY(0) scale(1);
}

.bt-menu ul.bt-menu-top li a {
	text-decoration: none;
	outline: none;
	color: #687374;
	padding: 0 30px;
}

.bt-menu ul.bt-menu-top li a:hover,
.bt-menu ul.bt-menu-top li a:focus {
	color: #fff;
}

.bt-menu ul.bt-menu-top li a:before {
	font-size: 36px;
}

/* Bottom Menu */

.bt-menu ul.bt-menu-bottom {
	bottom: 0px;
	width: 100%;
	padding: 10px 0;
}

.bt-menu ul.bt-menu-bottom li {
	width: 120px;
	height: 75px;
	background: #333;
	border: 3px solid #687374;
	margin: 0 5px;
	position: relative;
	cursor: pointer;
	-webkit-transform: translateY(100%) scale(0);
	transform: translateY(100%) scale(0);
	-webkit-transition: -webkit-transform 0.3s;
	transition: transform 0.3s;
}

.bt-menu ul.bt-menu-bottom li:before,
.bt-menu ul.bt-menu-bottom li:after {
	content: '';
	position: absolute;
	left: 50%;
	margin-left: -1.5px;
	top: 0;
	height: 100%;
	width: 3px;
	background-color: #687374;
}

.bt-menu ul.bt-menu-bottom li:hover,
.bt-menu ul.bt-menu-bottom li:focus {
	border-color: #fff;
}

.bt-menu ul.bt-menu-bottom li:hover:before,
.bt-menu ul.bt-menu-bottom li:focus:before,
.bt-menu ul.bt-menu-bottom li:hover:after,
.bt-menu ul.bt-menu-bottom li:focus:after {
	background-color: #fff;
}

.bt-menu ul.bt-menu-bottom li:before {
	-webkit-transform: rotate(45deg);
	transform: rotate(45deg);
}

.bt-menu ul.bt-menu-bottom li:after {
	-webkit-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li {
	-webkit-transform: translateY(0) scale(1);
	transform: translateY(0) scale(1);
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:first-child {
	-webkit-transition-delay: 0.05s;
	transition-delay: 0.05s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(2) {
	-webkit-transition-delay: 0.1s;
	transition-delay: 0.1s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(3) {
	-webkit-transition-delay: 0.15s;
	transition-delay: 0.15s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(4) {
	-webkit-transition-delay: 0.2s;
	transition-delay: 0.2s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(5) {
	-webkit-transition-delay: 0.25s;
	transition-delay: 0.25s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(6) {
	-webkit-transition-delay: 0.3s;
	transition-delay: 0.3s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(7) {
	-webkit-transition-delay: 0.35s;
	transition-delay: 0.35s;
}

.bt-menu.bt-menu-open ul.bt-menu-bottom li:nth-child(8) {
	-webkit-transition-delay: 0.4s;
	transition-delay: 0.4s;
}

/* Media Queries */
@media screen and (max-width: 44em) {
	.bt-overlay:after {
		font-size: 2em;
	}
}
 
@media screen and (max-width: 39.125em) {
	.bt-menu ul.bt-menu-top {
		left: 20px;
		-webkit-transform: translateX(0);
		transform: translateX(0);
	}

	.bt-menu ul.bt-menu-top li a {
		padding: 0 10px;
	}

	.bt-menu ul.bt-menu-top li a:before {
		font-size: 22px;
	}
}