///
/// Ethereal by HTML5 UP
/// html5up.net | @ajlkn
/// Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)
///

/* Panel */

	$pad: _size(pad);
	$pad-small-tb: _size(pad-small-tb);
	$pad-small-lr: _size(pad-small-lr);

	@mixin panel-colors {
		$opacity: 0.175;
		$darken: 3;
		$desaturate: 3;

		&.color0 {
			@include gradient-background(false, 1, 20%, 60%);
		}

		&.color1 {
			@include gradient-background;
			background-color: _palette(accent1);
		}

		&.color2 {
			@include gradient-background;
			background-color: _palette(accent2);
		}

		&.color3 {
			@include gradient-background;
			background-color: desaturate(darken(_palette(accent3), 9), 9);
		}

		&.color4 {
			@include gradient-background;
			background-color: _palette(accent4);
		}

		&.color1-alt {
			@include gradient-background(false, $opacity);
			background-color: desaturate(darken(_palette(accent1), $darken), $desaturate);
		}

		&.color2-alt {
			@include gradient-background(false, $opacity);
			background-color: desaturate(darken(_palette(accent2), $darken), $desaturate);
		}

		&.color3-alt {
			@include gradient-background(false, $opacity);
			background-color: desaturate(darken(_palette(accent3), 12), 12);
		}

		&.color4-alt {
			@include gradient-background(false, $opacity);
			background-color: desaturate(darken(_palette(accent4), $darken), $desaturate);
		}
	}

	.panel {
		@include vendor('display', 'flex');
		@include vendor('flex-grow', '0');
		@include vendor('flex-shrink', '0');
		@include vendor('justify-content', 'center');
		@include vendor('align-items', 'stretch');
		height: 100%;
		overflow-x: hidden;
		overflow-y: auto;

		> * {
			position: relative;
			min-width: 10rem;

			@include panel-colors;
		}

		> .intro {
			@include padding($pad, $pad);
			@include vendor('display', 'flex');
			@include vendor('flex-grow', '0');
			@include vendor('flex-shrink', '0');
			@include vendor('justify-content', 'center');
			@include vendor('align-items', 'flex-start');
			@include vendor('flex-direction', 'column');
			width: 22rem;

			&.joined {
				width: (22rem - $pad);
				padding-right: 0;

				& + .inner {
					padding-left: ($pad * 0.75);
				}
			}
		}

		> .inner {
			@include padding($pad, $pad);
			@include vendor('display', 'flex');
			@include vendor('flex-grow', '1');
			@include vendor('flex-shrink', '1');
			@include vendor('justify-content', 'center');
			@include vendor('align-items', 'flex-start');
			@include vendor('flex-direction', 'column');
			position: relative;
			width: 100%;

			&.columns {
				@include vendor('display', 'flex');
				@include vendor('justify-content', 'center');
				@include vendor('align-items', 'center');
				@include vendor('flex-direction', 'row');

				> * {
					@include vendor('flex-grow', '0');
					@include vendor('flex-shrink', '0');
					margin-left: $pad;
				}

				> :first-child {
					margin-left: 0;
				}

				&.divided {
					> * {
						margin-left: ($pad * 2);

						&:before {
							content: '';
							position: absolute;
							top: $pad;
							width: 2px;
							height: calc(100% - #{$pad * 2});
							margin-left: ($pad * -1);
							background-color: _palette(border);
						}
					}

					> :first-child {
						margin-left: 0;

						&:before {
							display: none;
						}
					}
				}

				&.aligned {
					@include vendor('align-items', 'flex-start');
				}
			}
		}

		@include spans(_size(span-fixed));

		&.small {
			width: 35rem;
		}

		&.medium {
			width: 50rem;
		}

		&.large {
			width: 65rem;
		}

		&.small,
		&.medium,
		&.large {
			@include spans(_size(span-variable));
		}

		@include panel-colors;
	}

	@mixin panel-colors-small {
		$opacity: 0.175;
		$darken: 3;
		$desaturate: 3;

		&.color1 {
			@include gradient-background-small;
			background-color: _palette(accent1);
		}

		&.color2 {
			@include gradient-background-small;
			background-color: _palette(accent2);
		}

		&.color3 {
			@include gradient-background-small;
			background-color: _palette(accent3);
		}

		&.color4 {
			@include gradient-background-small;
			background-color: _palette(accent4);
		}

		&.color1-alt {
			@include gradient-background-small(false, $opacity);
			background-color: desaturate(darken(_palette(accent1), $darken), $desaturate);
		}

		&.color2-alt {
			@include gradient-background-small(false, $opacity);
			background-color: desaturate(darken(_palette(accent2), $darken), $desaturate);
		}

		&.color3-alt {
			@include gradient-background-small(false, $opacity);
			background-color: desaturate(darken(_palette(accent3), $darken), $desaturate);
		}

		&.color4-alt {
			@include gradient-background-small(false, $opacity);
			background-color: desaturate(darken(_palette(accent4), $darken), $desaturate);
		}
	}

	@include breakpoint('<=small') {
		.panel {
			@include vendor('flex-direction', 'column');
			height: auto;

			> * {
				@include panel-colors-small;
			}

			> .intro {
				@include padding($pad-small-tb, $pad-small-lr);
				width: 100% !important;

				&.joined {
					padding-bottom: 0;
					padding-right: $pad-small-lr;

					& + .inner {
						padding-top: 0;
						padding-left: $pad-small-lr;
					}
				}
			}

			> .inner {
				@include padding($pad-small-tb, $pad-small-lr);

				&.columns {
					@include vendor('flex-direction', 'column');

					> * {
						margin-left: 0;
						margin-top: 0;
					}

					> :first-child {
						margin-top: 0;
					}

					&.divided {
						> * {
							margin-left: 0;
							margin-top: ($pad-small-lr * 2);

							&:before {
								content: '';
								position: absolute;
								top: auto;
								left: $pad-small-lr;
								width: calc(100% - #{$pad-small-lr * 2});
								height: 2px;
								margin-left: 0;
								margin-top: ($pad-small-lr * -1);
							}
						}

						> :first-child {
							margin-top: 0;
						}
					}
				}
			}

			@include spans-small(_size(span-fixed));

			&.small,
			&.medium,
			&.large {
				@include spans-small(_size(span-variable));
				width: 100% !important;
			}

			@include panel-colors-small;
		}
	}