/**
 * NanoSupport Button styles.
 *
 * @package NanoSupport
 */

.ns-btn {
	display: inline-block;
	margin-bottom: 0; // For input.btn
	font-weight: normal;
	text-align: center;
	vertical-align: middle;
	touch-action: manipulation;
	cursor: pointer;
	background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
	border: 1px solid transparent;
	white-space: nowrap;
	@include button-size(6px, 12px, $font-size-base, 1.428571429, 4px);
	@include user-select(none);

	&,
	&:active,
	&.active {
		&:focus,
		&.focus {
			@include tab-focus;
		}
	}

	&:hover,
	&:focus,
	&.focus {
		color: $btn-default-color;
		text-decoration: none;
	}

	&:active,
	&.active {
		outline: 0;
		background-image: none;
		@include box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
	}

	&.disabled,
	&[disabled],
	fieldset[disabled] & {
		cursor: not-allowed;
		@include opacity(.65);
		@include box-shadow(none);
	}

	// [converter] extracted a& to a.btn
}

a.ns-btn {
	&.disabled,
	fieldset[disabled] & {
		pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
	}
}


// Alternate buttons
// --------------------------------------------------

.ns-btn-default {
	@include button-variant($btn-default-color, $btn-default-bg, $btn-default-border);
}

.ns-btn-primary {
	@include button-variant($btn-primary-color, $btn-primary-bg, $btn-primary-border);
}

// Success appears as green
.ns-btn-success {
	@include button-variant($btn-success-color, $btn-success-bg, $btn-success-border);
}

// Info appears as blue-green
.ns-btn-info {
	@include button-variant($btn-info-color, $btn-info-bg, $btn-info-border);
}

// Warning appears as orange
.ns-btn-warning {
	@include button-variant($btn-warning-color, $btn-warning-bg, $btn-warning-border);
}

// Danger and error appear as red
.ns-btn-danger {
	@include button-variant($btn-danger-color, $btn-danger-bg, $btn-danger-border);
}


// Link buttons
// -------------------------

// Make a button look and behave like a link
.ns-btn-link {
	color: $link-color;
	font-weight: normal;
	border-radius: 0;

	&,
	&:active,
	&.active,
	&[disabled],
	fieldset[disabled] & {
		background-color: transparent;
		@include box-shadow(none);
	}

	&,
	&:hover,
	&:focus,
	&:active {
		border-color: transparent;
	}

	&:hover,
	&:focus {
		color: $link-hover-color;
		text-decoration: underline;
		background-color: transparent;
	}

	&[disabled],
	fieldset[disabled] & {
		&:hover,
		&:focus {
			color: $btn-link-disabled-color;
			text-decoration: none;
		}
	}
}


// Button Sizes
.ns-btn-lg {
	// line-height: ensure even-numbered height of button next to large input
	@include button-size(10px, 16px, $font-size-large, 1.3333333, 6px);
}

.ns-btn-sm {
	// line-height: ensure proper height of button next to small input
	@include button-size(5px, 10px, $font-size-small, 1.5, 3px);
}

.ns-btn-xs {
	@include button-size(1px, 5px, $font-size-small, 1.5, 3px);
}


// Block button
.ns-btn-block {
	display: block;
	width: 100%;
}

// Vertically space out multiple block buttons
.ns-btn-block + .ns-btn-block {
	margin-top: 5px;
}

// Specificity overrides
input[type="submit"],
input[type="reset"],
input[type="button"] {
	&.ns-btn-block {
		width: 100%;
	}
}