// ==========================================================================
// Buttons
// ==========================================================================

nav {
	ul {
		list-style: none;
		margin: 0;
		padding: 0;
		font-size: 0;
	}
	li {
		display: inline-block;
		margin-top: (@padding-base / 2);
		.font-size();
		white-space: nowrap;
	}
	li + li {
		margin-left: @padding-base;
	}
}

// Tabs
.btn-bar {
	position: relative;
	margin: 0 auto @padding-base;
	max-width: @example-width-video;
	white-space: nowrap;

	&::before {
		content: "";
		position: absolute;
		top: 50%;
		left: 0;
		right: 0;
		height: 1px;
		background: @gray-lighter;
	}

	ul {
		position: relative;
		z-index: 1;
		display: inline-block;
		user-select: none;
	}
	li {
		margin: 0;

		&:first-child .btn {
			border-radius: 4px 0 0 4px;
		}
		&:last-child .btn {
			border-radius: 0 4px 4px 0;
		}
		& + li .btn {
			margin-left: -1px;
		}
	}
	.btn {
		display: block;
		border-radius: 0;
	}
	.active {
		&:extend(.btn-primary);
	}
	.btn.active {
		box-shadow: inset 0 1px 1px rgba(0,0,0, .2);
		position: relative;
		z-index: 1;

		.icon {
			color: inherit;
		}
	}

	@media (min-width: 560px) {
		margin-bottom: (@padding-base * 2);
	}
}

// Shared 
.btn,
.btn-count {
	display: inline-block;
	vertical-align: middle;
	border-radius: @border-radius-base;
	font-weight: 600;
	user-select: none;
}

// Buttons 
.btn {
	padding: (@padding-base / 2) @padding-base;
	background: @body-background;
	border: 1px solid @gray-light;
	box-shadow: inset 0 1px 0 #fff, 0 1px 1px rgba(0,0,0, .05);
	text-shadow: 0 1px 1px #fff;
	color: @gray;
	transition: background .3s ease, border .3s ease, color .3s ease;

	&:hover,
	&:focus {
		border-color: darken(@gray-light, 8%);
		color: @gray;
		outline: 0;
	}
	&-youtube .icon {
		color: @color-youtube;
	}
	&-vimeo .icon {
		color: @color-vimeo;
	}
	&-twitter .icon {
		color: @color-twitter;
	}
}
.btn-primary {
	background-image: linear-gradient(@link-color, darken(@link-color, 3%));
	background-color: @link-color;
	border-color: darken(@link-color, 10%);
	box-shadow: 0 1px 1px rgba(0,0,0, .15);
	text-shadow: 0 1px 1px rgba(0,0,0, .1);
	color: #fff;
	
	&:hover,
	&:focus {
		color: #fff;
		border-color: darken(@link-color, 20%);
	}
}
.btn-small {
	padding-top: ceil(@padding-base / 3);
	padding-bottom: ceil(@padding-base / 3);
}

// Count bubble
.btn-count {
	position: relative;
	margin-left: (@padding-base / 2);
	padding: (@padding-base / 2) (@padding-base * .75);
	background: #fff;
	border: 1px solid @gray-light;

	&::before {
		content: "";
		position: absolute;
		display: block;
		width: @arrow-size;
		height: @arrow-size;
		left: 1px;
		top: 50%;
		margin-top: -(@arrow-size / 2);

		background: inherit;
		border: inherit;
		border-width: 1px 0 0 1px;
		transform: rotate(-45deg) translate(-50%, -50%);
	}
}