sidebar.css

/* ASIDE
   ===== */

.u-shadow-aside {
	opacity: 0;
	height: 100%;
	width: 100%;
	position: fixed;
	top: 0;
	left: 0;
	z-index: -1;
	background: rgba(0, 0, 0, 0.25);
}

.u-aside {
	overflow-y: auto;
	width: 75%;
	height: 100%;
	position: fixed;
	top: 0;
	left: -100%;
	z-index: 1;
	background-color: #fff;
}

.btn-aside-close {
	width: 35px;
	height: 35px;
	position: absolute;
	left: 10px;
	top: 10px;
	background: url(../img/aside-icon-x.svg) no-repeat center center/contain;
}

/* TOGGLE BUTTON */

.btn-aside-open {
	height: 66px;
	width: 66px;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 1;
}

.aside-open_bar {
	background: #000;
	display: block;
	height: 2px;
	width: 18px;
	margin: 0 auto;
}

.aside-open_bar + .aside-open_bar {
	margin-top: 4px;
}


/* MODIFICATORS
   ============ */

.m-bunner-hide {
	display: none;
}


/* ANIMATIONS
   ========== */

.m-shadow-hide {
	animation: m-shadow-hide 0.5s forwards;
}

.m-shadow-show {
	animation: m-shadow-show 0.5s forwards;
}

@keyframes m-shadow-hide {
	from {
		opacity: 1;
		z-index: 3;
	}
	99% {
		z-index: 3;
	}
	to {
		opacity: 0;
		z-index: -1;
	}
}

@keyframes m-shadow-show {
	from {
		opacity: 0;
		z-index: -1;
	}
	1% {
		z-index: 3;
	}
	to {
		opacity: 1;
		z-index: 3;
	}
}

.m-aside-show {
	animation: m-aside-show 0.5s forwards;
}

.m-aside-hide {
	animation: m-aside-hide 0.5s forwards;
}


@keyframes m-aside-hide {
	from {
		left: 0;
		z-index: 3;
	}
	to {
		left: -100%;
		z-index: 1;
	}
}

@keyframes m-aside-show {
	from {
		left: -100%;
		z-index: 1
	}
	to {
		left: 0;
		z-index: 3;
	}
}