/* Viewport and Layout Resets */
html body,
body,
html {
	margin: 0;
	padding: 0;
	width: 100%;
	height: 100%;
	overflow: hidden;
	line-height: normal;
	background-color: var(--ace-bg);
	color: var(--ace-foreground);
	font-size: 16px;
	font-family:
		/* 1. MacOS/iOS: The gold standard for modern screens */
		"SF Mono",
		/* 2. MacOS Legacy: Still looks great */
		"Menlo",
		/* 3. Windows 10/11: Built specifically for coding */
		"Cascadia Code",
		/* 4. Windows Legacy: The classic VS look */
		"Consolas",
		/* 5. Linux: Clean and highly readable */
		"Liberation Mono",
		/* 6. General Linux: Wide support */
		"DejaVu Sans Mono",
		/* 7. The Final Safety Net */
		monospace;
}

/* Absolute layout enforcement for Lumino elements */
#app-root,
#workspace-box,
#main-workspace {
	position: absolute !important;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}

/* Visible Splitter Bars (The drag handles between panels) */
.lm-SplitPanel-handle,
.lm-DockPanel-handle {
	background: var(--ace-bg) !important;
	border: 1px solid var(--ace-gutter-bg);
	transition: background 0.2s;
}

.lm-SplitPanel-handle:hover,
.lm-DockPanel-handle:hover {
	background: var(--ace-selection-bg) !important;
}

/* Native Tab Bar Styling (Jupyter/VSCode fusion) */
.lm-TabBar {
	background: var(--ace-bg);
	border-bottom: 1px solid var(--ace-gutter-bg);
	min-height: 38px;
}

.lm-TabBar-tab {
	background: var(--ace-gutter-bg);
	color: var(--ace-comment);
	border-right: 1px solid var(--ace-bg);
	padding: 6px 12px;
	font-size: 16px;
	min-width: 50px;
	flex-shrink: 1;
	flex-grow: 0;
	overflow: hidden;
	margin: 0;
	box-sizing: border-box;
}

.lm-TabBar-tab:hover {
	background: var(--ace-bg);
	color: var(--ace-foreground);
}

.lm-TabBar-tab.lm-mod-current {
	background: var(--ace-bg);
	color: var(--ace-foreground);
	border-top: 2px solid var(--ace-selection-bg);
}

.lm-TabBar-tabCloseIcon::before {
	content: '×';
	font-size: 14px;
	margin-left: 6px;
	cursor: pointer;
}

.lm-TabBar-content {
	margin: 0 !important;
	padding: 0 !important;
	display: flex !important;
	flex-wrap: wrap !important;
	align-content: flex-start;
	/* Keeps wrapped lines tightly stacked */
	box-sizing: border-box;
}

.lm-TabBar-content::-webkit-scrollbar {
	display: none;
	/* Safari and Chrome */
}


/* Absolute Drag Drop Target Overlay Graphic Indicators */
.lm-DockPanel-overlay {
	background: rgba(53, 73, 50, 0.2) !important;
	/* Semi-transparent selection layer match */
	border: 2px solid var(--ace-selection-bg) !important;
}

.animated-bg-layer {
	/* Fix position so it doesn't scroll or affect document flow */
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	z-index: -1;

	/* Crucial: Strict containment breaks all layout dependencies */
	contain: strict;

	/* Force GPU layer promotion to prevent paint invalidation on body */
	will-change: transform;

	/* Use a hardware-accelerated property for the animation */
	animation: waveMovement 18s ease infinite;

	background: linear-gradient(45deg, var(--ace-pink), var(--ace-purple));
	background-size: 400% 400%;
}

#sidebar-panel.lm-mod-hidden {
	min-width: 0 !important;
	width: 0 !important;
	overflow: hidden;
	transition: width 0.2s ease, min-width 0.2s ease;
}

#sidebar-panel:not(.lm-mod-hidden) {
	min-width: 250px !important;
	width: 250px !important;
}


[class^="bx"]::before, [class*=" bx"]::before, .bx::before, #tabs a:empty::before, #toolbar a:empty::before {
    text-shadow: 1px 2px 3px rgb(from var(--ace-gutter-bg) r g b / 100%);
    color: var(--ace-foreground);
    font-family: boxicons !important;
}