.panel-fullscreen {
	overflow:hidden;
	max-width: 100%;
}

.panel {
    display: flex;
    flex-direction: column;

	position: relative;
	background-color: $white;
	box-shadow: 0px 0px 13px 0px rgba(darken($primary-800, 15%), (8/100));
 
	margin-bottom: $grid-gutter-width;
	border-radius: $border-radius;

	//experimental ...
	border: 1px solid rgba(0, 0, 0, 0.09);
	border-bottom: 1px solid #e0e0e0;

	border-radius: $panel-edge-radius;

	transition : border 500ms ease-out;

	/* panel container */
	.panel-container {

		//this cosigns with header animation 'all'
		//@include transition-border(0.4s, ease-out);

		position: relative;

		//border: 1px solid transparent;
		//border-top-width: 0;

    	border-radius: 0 0 $panel-edge-radius $panel-edge-radius;

		.panel-content {
			padding: $panel-spacer-y $panel-spacer-x;

			&:only-child,
			&:last-child {
				border-radius: 0 0 $panel-edge-radius $panel-edge-radius;
			}
		}
	}

	/* panel refresh */
	&.panel-refresh {

		.js-panel-refresh {
			opacity: 0.5;
			cursor: wait;
		}
	}

	/* panel fullscreen */
	&.panel-fullscreen {
		position: fixed !important; /* there is a bug with jquery ui, so we have to add !important rule here */
		z-index: $zindex-panel-fullscreen;
		top: 0;
		left: 0;
		right: 0;
		height: 100vh !important;
		max-height: 100vh !important;
    	width: 100vw !important;
    	max-width: 100vw !important;
		border-radius: 0;
		border:0;

		/*display: flex;
		flex-direction: column;*/

		[data-action="panel-collapse"],
		.js-panel-collapse,
		[data-action="panel-close"],
		.js-panel-close  {
			display: none;
		}

		/* make panel header bigger */
		.panel-hdr {
			height: $header-height;
			border-radius: 0;
			box-shadow: 0 0.125rem 0.125rem -0.0625rem  rgba(darken($primary-800, 10%), (10/100));

			/* make panel header bigger */
			h2 {
				font-size: rem($panel-hdr-font-size + 4);
				font-weight:400;
			}
		}

		.js-panel-locked {
			display: none;
		}

		.btn-panel[data-action="panel-fullscreen"],
		.js-panel-fullscreen {
			width:$panel-hdr-height/2;
			height:$panel-hdr-height/2;
		}

		.panel-container {
			flex: 1;
			overflow-y: auto;
			border-radius: 0;
			display: block !important; //incase user had it collapsed
		}
	}

	/* panel collapse */
	/*&.panel-collapsed:not(.panel-fullscreen) {

		.panel-container {
			display:none;
		}

	}*/

	/* panel locked */
	&.panel-locked:not(.panel-fullscreen) {

		.js-panel-locked {
			font-weight: bold;
		}

		.panel-hdr {
			//&:active {

				h2:before {
					font-family: 'nextgen-icons';
					content: "\f2ae";
					position: absolute;
					top: 0;
					bottom: 0;
					right: 5px;
					display: inline-flex;
					align-items: center;
					justify-content: center;
					font-size: 1.1rem;
					color: $danger-500;
				}
			//}
		}

	}

	&.ui-sortable-helper {
		box-shadow: 0 5px 16px 0 rgba(0,0,0,0.05), 0 5px 20px 0 rgba(0,0,0,0.09);
		/*.panel-toolbar {
			-webkit-filter: grayscale(100%);  Safari 6.0 - 9.0 
			filter: grayscale(100%);
		}*/
	}
}

/* panel tag can be used globally */
.panel-tag {
	padding: 1rem $panel-spacer-x;
	margin-bottom: 2rem;
	border-left: 3px solid $success-500;
	background: #eef7fd;
	opacity: 0.8;
	font-weight: 400;
	font-size: 0.875rem;
	border-radius: 0px 8px 8px 0px;	

	//remove p tag margin
	>*:last-child,
	>*:only-child {
		margin-bottom: 0;
	}	

	&:only-child {
		margin-bottom: 0;
	}
}

/* panel header */
.panel-hdr {
	display: flex;
	align-items:center;
	background: $panel-hdr-background;
	min-height: $panel-hdr-height;
	//@include box-sizing(border-box); //why did we need this?
	//border: 1px solid transparent;
	border-bottom:  1px solid rgba(0, 0, 0, 0.07);
	//box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.05);
	border-radius: $panel-edge-radius $panel-edge-radius 0 0;

	//@extend %common-animation-easeout;

	@include transition-background-color(0.4s, ease-out)

	.panel-collapsed & {
		border-radius: $panel-edge-radius;
	}
	
	/* add padding to first and last child */
	> :first-child {
		padding-left: $panel-spacer-x;
	}
	> :last-child {
		padding-right: $panel-spacer-x;
	}

	/* adjusts title */
	h2 {
		flex: 1;
		font-size: rem($panel-hdr-font-size);
		margin: 0;
		display: flex;
		align-items:center;
		line-height: $panel-hdr-height;
		color: inherit;
		color: #333;
		position: relative;

		font-weight: 500;

		&:not(:only-child) {
			margin-right: $panel-spacer-x / 1.5;
		}

		> [class*='fw-'] {
			margin-left: 4px;
		}

		small {
			display: inline-block;
			margin:0;
			opacity: 0.8;
			font-weight: 400;
			font-size: rem($panel-hdr-font-size - 2);
			margin-left: $spacer * 0.5;
		}

		/* panel header icon */
		.panel-icon {
			margin-right: $p-2;
		}

	}

}

.panel-hdr[class^="bg-"], 
.panel-hdr[class*=" bg-"] {
	h2 {
		color: inherit;
	}
}



/* panel tap highlight */
.panel-sortable:not(.panel-locked).ui-sortable-helper {

	&:active {
		border-color: rgba($black,  0.15);
	}

	/*.panel-hdr {
		&:active {
			border-top-color: rgba($primary-300, 0.7);
			border-left-color: rgba($primary-500, 0.7);
			border-right-color: rgba($primary-500, 0.7);

			& + .panel-container {

				border-color: transparent rgba($primary-500, 0.7) rgba($primary-600, 0.7);
			}
		}
	}*/
}

/*.panel-sortable .panel-hdr:active,
.panel-sortable .panel-hdr:active + .panel-container {
	@include transition-border(0.4s, ease-out);
}*/

.panel-sortable.panel-locked {
	/*.panel-hdr {
		&:active {
			border-top-color: $danger-300;
			border-left-color: $danger;
			border-right-color: $danger;

			& + .panel-container {
				border-color: transparent $danger $danger;
			}
		}
	}*/
}

/* panel toolbar (sits inside panel header) */
.panel-toolbar {
	display: flex;
	align-items:center;

	.btn-panel {
		margin-left: $panel-btn-spacing;

		padding: 0;
		width: $panel-btn-size;
		height: $panel-btn-size;

		@include box-sizing(border-box);

		border-radius: 50%;
		opacity: 0.8;

		@extend %common-animation;

		&:hover {
			opacity: 1;
		}

		/* add default colors for action buttons */
		&[data-action="panel-collapse"],
		&.js-panel-collapse {
			background: $success-500;
		}

		&[data-action="panel-fullscreen"],
		&.js-panel-fullscreen {
			background: $warning-500;
		}

		&[data-action="panel-close"],
		&.js-panel-close {
			background: $danger-500;
		}

		/*&:after {
			content: "";
			position: absolute;
			border: 1px solid rgba($white, 0.6);
			border-radius: 50%;
			width: calc(100% + 2px);
			height: calc(100% + 2px);
			right: -1px;
			top: -1px;
		}*/

	}

	.btn-toolbar-master {
		height: $panel-hdr-height;
		width:  1.826875rem; /* stop flickering bug due to cpu latency */
		border-radius: 0;
		margin-right: -$panel-spacer-x;
		border-top-right-radius: 3px;
		margin-left: 0.5rem;
		padding: 0 13px;
		background: transparent;
		border: 0;
		font-size: $panel-toolbar-icon;
		color: inherit;
		display: flex;
		align-items: center;
		justify-content: center;

		&[aria-expanded="true"] {
			box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15) inset
		}

		& + .dropdown-menu {
			right: 0;
			top: $panel-hdr-height;
			left: auto !important;
			margin:0;
			border-radius:0;
			//min-width: 150px;
		}
	}

	/* we curve the last button to make it seamless with panel's border radius */
	.btn-panel-flat:last-child {
		border-top-right-radius: $border-radius - 1px;
	}

}

.panel-sortable:not(.panel-fullscreen):not(.panel-locked) .ui-sortable-handle {
	cursor: move;
}

/* placeholder */
.panel-placeholder {
	background-color: $panel-placeholder-color;
	box-sizing: border-box;
	margin-bottom: $grid-gutter-width;
	border-radius: $border-radius + 1;
	position: relative;
	overflow: hidden;
	//exprimental...
	border: 1px solid transparent;
	/* placeholder border animation */
	&:before,
	&:after {
		content:" ";
		background-image: url(data:image/gif;base64,R0lGODlhCAAIAJAAAAAAAP///yH/C05FVFNDQVBFMi4wAwEAAAAh+QQECgD/ACwAAAAACAAIAAACD4SDYZB6udpiaMJYsXuoAAAh+QQECgD/ACwAAAAACAAIAAACDYQRGadrzVRMB9FZ5SwAIfkEBAoA/wAsAAAAAAgACAAAAg8MDqGYaudeW9ChyOyltQAAIfkEBAoA/wAsAAAAAAgACAAAAg9MgGCXm+rQYtC0WGl9oQAAIfkEBAoA/wAsAAAAAAgACAAAAg+MgWCRernaYmjCWLF7qAAAIfkEBAoA/wAsAAAAAAgACAAAAg2MAwmna81UTAfRWeUsACH5BAQKAP8ALAAAAAAIAAgAAAIPRB6gmGrnXlvQocjspbUAACH5BAQKAP8ALAAAAAAIAAgAAAIPBIJhl5vq0GLQtFhpfaAAADs=);
		border-radius: $border-radius + 1;
		position: absolute;
		top:0;
		right:0;
		bottom:0;
		left:0;
		opacity: 0.3;
	}

	&:before {
		background: $panel-placeholder-color;
		margin: 1px;
		box-sizing: border-box;
		opacity: 1;
		z-index: 1;
	}
}

.mod-panel-clean {

	.panel-hdr {
		background: $white;
		background-image: linear-gradient(to bottom,#f7f7f7, $white);
		box-shadow: none;
		
		h2 {
			color: #333;
			font-weight: 500;
		}

	}

	/*.panel-container {
		.panel-content:first-child {
			padding-top: $p-1;
		}
	}*/
	
}	

@media only screen and ( max-width: 420px ){
	/* making mobile spacing a little narrow */
	.panel {
		.panel-hdr {
			font-size: rem($panel-hdr-font-size);
			//color: #060606;
			min-height: $panel-hdr-height - 4;

			> :first-child {
				padding-left: 10px;
			}
			> :last-child {
			  	padding-right: 10px;
			}

			.panel-toolbar .btn-toolbar-master {
				margin-right: -10px;
			}
		}



		.panel-container {
			.panel-content:first-child {
				padding: 10px;
			}
		}
	}
}

/* print only selected panel when on fullscreen */
@media print {
	.panel-fullscreen {
		.subheader,
		.page-breadcrumb,
		.page-content .panel:not(.panel-fullscreen) {
			display: none;
		}

		.panel-hdr,
		.panel-container,
		.panel-content,
		h2 {
			border: none;
			padding: 0 !important;
		}

		.panel {
			margin: 0;
		}
	}
}