*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

:root {
	--bg: #0c0c0c;
	--sidebar-bg: #141414;
	--text: #d8d8d8;
	--text-dim: #666666;
	--accent: #d8d8d8;
	--border: #2a2a2a;
	--input-bg: #0a0a0a;
	--btn-bg: #1e1e1e;
	--btn-hover: #2a2a2a;
}

:focus {
	outline-color: var(--accent);
}

html, body {
	height: 100%;
	overflow: hidden;
	font-family: "SF Mono", "Cascadia Mono", "Consolas", monospace;
	font-size: 12px;
	color: var(--text);
	background: var(--bg);
}

#app {
	display: grid;
	grid-template-columns: 280px 1fr;
	height: 100vh;
}

#preview-container {
	display: flex;
	flex-direction: column;
	overflow: hidden;
}

/* ===== Dither-pattern border ===== */

.dither-border {
	height: 4px;
	background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYPj/n4EBGwYAJOgD/deCmrAAAAAASUVORK5CYII=");
	background-repeat: repeat;
	image-rendering: pixelated;
	opacity: 0.4;
}

/* ===== Sidebar ===== */

#sidebar {
	background: var(--sidebar-bg);
	border-right: 1px solid var(--border);
	overflow-y: auto;
	padding: 12px;
}

#sidebar h1 {
	font-family: "UnifrakturMaguntia", cursive;
	font-size: 32px;
	font-weight: 400;
	margin-bottom: 4px;
	color: var(--accent);
	letter-spacing: 1px;
}

#sidebar .tagline {
	font-size: 10px;
	color: var(--text-dim);
	text-transform: uppercase;
	letter-spacing: 2px;
	margin-bottom: 12px;
}

#sidebar hr {
	border: none;
	outline: none;
	height: 1px;
	background: var(--accent);
	opacity: 0.3;
	opacity: 0.4;
	margin: 8px 0;
}

.button-row {
	display: flex;
	gap: 6px;
}

.button-row button {
	flex: 1;
	padding: 7px 10px;
	background: var(--btn-bg);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 0;
	cursor: pointer;
	font-family: inherit;
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	transition: background 0.1s, border-color 0.1s;
}

.button-row button:hover {
	background: var(--btn-hover);
	border-color: var(--accent);
}

.button-row button:focus-visible {
	outline: 1px solid var(--accent);
	outline-offset: 1px;
}

.button-row button:disabled {
	opacity: 0.3;
	cursor: default;
}

.button-row button:disabled:hover {
	border-color: var(--border);
}

/* Details/Summary */

details {
	margin-bottom: 2px;
}

summary {
	padding: 6px 4px;
	cursor: pointer;
	font-weight: 400;
	font-size: 10px;
	color: var(--text-dim);
	text-transform: uppercase;
	letter-spacing: 1.5px;
	user-select: none;
	border-bottom: 1px dotted var(--border);
	transition: color 0.1s;
}

summary:hover {
	color: var(--accent);
}

summary::marker {
	color: var(--text-dim);
}

details[open] > summary {
	color: var(--text);
}

details > :not(summary) {
	padding: 4px 0;
}

/* Labels & Controls */

label {
	display: block;
	padding: 3px 4px;
	font-size: 11px;
	color: var(--text-dim);
}

label span {
	float: right;
	color: var(--text);
	font-variant-numeric: tabular-nums;
}

label.checkbox {
	display: flex;
	align-items: center;
	gap: 6px;
}

label.checkbox span {
	float: none;
}

input[type="range"] {
	-webkit-appearance: none;
	appearance: none;
	width: 100%;
	height: 2px;
	margin-top: 4px;
	background: var(--border);
	outline: none;
	border-radius: 0;
}

input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 10px;
	height: 10px;
	background: var(--accent);
	border: none;
	border-radius: 0;
	cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
	width: 10px;
	height: 10px;
	background: var(--accent);
	border: none;
	border-radius: 0;
	cursor: pointer;
}

select {
	width: 100%;
	margin-top: 2px;
	padding: 4px;
	background: var(--input-bg);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 0;
	font-family: inherit;
	font-size: 11px;
}

select:focus {
	border-color: var(--accent);
	outline: none;
}

input[type="color"] {
	width: 100%;
	height: 24px;
	margin-top: 2px;
	padding: 0;
	border: 1px solid var(--border);
	border-radius: 0;
	background: var(--input-bg);
	cursor: pointer;
}

input[type="checkbox"] {
	-webkit-appearance: none;
	appearance: none;
	width: 12px;
	height: 12px;
	border: 1px solid var(--border);
	background: var(--input-bg);
	cursor: pointer;
	position: relative;
	flex-shrink: 0;
}

input[type="checkbox"]:checked {
	background: var(--accent);
	border-color: var(--accent);
}

input[type="checkbox"]:checked::after {
	content: "";
	position: absolute;
	inset: 2px;
	background: var(--sidebar-bg);
}

/* ===== Batch ===== */

.batch-hint {
	font-size: 10px;
	color: var(--text-dim);
	line-height: 1.5;
	margin-bottom: 6px;
	padding: 0 4px;
}

.batch-hint code {
	color: var(--accent);
	font-family: inherit;
}

/* CLI download buttons */

.dl-stack {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.dl-btn {
	display: block;
	padding: 7px 10px;
	background: var(--btn-bg);
	color: var(--text);
	border: 1px solid var(--border);
	cursor: pointer;
	font-family: inherit;
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	text-align: center;
	text-decoration: none;
	transition: background 0.1s, border-color 0.1s;
}

.dl-btn:hover {
	background: var(--btn-hover);
	border-color: var(--accent);
}

.dl-dropdown {
	flex: 1;
	position: relative;
}

.dl-dropdown .dl-btn {
	width: 100%;
}

.dl-dropdown-menu {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	background: var(--sidebar-bg);
	border: 1px solid var(--border);
	z-index: 10;
}

.dl-dropdown.open .dl-dropdown-menu {
	display: block;
}

.dl-dropdown-menu a {
	display: block;
	padding: 7px 10px;
	color: var(--text);
	text-decoration: none;
	font-size: 11px;
	transition: background 0.1s;
}

.dl-dropdown-menu a:hover {
	background: var(--btn-hover);
}

/* Batch */

#batch-status {
	margin-top: 6px;
}

#batch-file-list {
	max-height: 120px;
	overflow-y: auto;
	font-size: 10px;
	font-family: inherit;
	color: var(--text-dim);
	margin-bottom: 4px;
	padding: 0 4px;
}

#batch-file-list div {
	padding: 1px 0;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

#batch-file-list .done { color: var(--text); }
#batch-file-list .done::before { content: "\2713 "; color: var(--accent); }
#batch-file-list .active { color: var(--accent); }
#batch-file-list .active::before { content: "\25b8 "; }
#batch-file-list .error { color: #884444; }
#batch-file-list .error::before { content: "\2717 "; }

#batch-info {
	font-size: 10px;
	color: var(--text-dim);
	padding: 0 4px;
	margin-bottom: 4px;
}

#batch-progress-bar-bg {
	width: 100%;
	height: 8px;
	background: var(--border);
	image-rendering: pixelated;
}

#batch-progress-bar {
	height: 100%;
	width: 0%;
	background-color: var(--accent);
	mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYPj/n4EBGwYAJOgD/deCmrAAAAAASUVORK5CYII=");
	mask-size: 4px 4px;
	mask-repeat: repeat;
	-webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYPj/n4EBGwYAJOgD/deCmrAAAAAASUVORK5CYII=");
	-webkit-mask-size: 4px 4px;
	-webkit-mask-repeat: repeat;
	image-rendering: pixelated;
	transition: width 0.15s;
}

/* ===== Preview ===== */

#preview {
	position: relative;
	flex: 1;
	overflow: hidden;
	background: var(--bg);
	cursor: grab;
}

#preview:active {
	cursor: grabbing;
}

#preview-divider {
	height: 8px;
	background-color: var(--accent);
	mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYPj/n4EBGwYAJOgD/deCmrAAAAAASUVORK5CYII=");
	mask-size: 4px 4px;
	mask-repeat: repeat;
	-webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYPj/n4EBGwYAJOgD/deCmrAAAAAASUVORK5CYII=");
	-webkit-mask-size: 4px 4px;
	-webkit-mask-repeat: repeat;
	image-rendering: pixelated;
	opacity: 0.5;
	cursor: row-resize;
	flex-shrink: 0;
}

#original-preview {
	position: relative;
	flex: 1;
	overflow: hidden;
	background: #0a0a0a;
	cursor: grab;
}

#original-preview:active {
	cursor: grabbing;
}

#original-canvas-wrap {
	position: absolute;
	top: 0;
	left: 0;
	transform-origin: 0 0;
}

#original-canvas {
	display: block;
	image-rendering: pixelated;
	image-rendering: crisp-edges;
}

#canvas-wrap {
	position: absolute;
	top: 0;
	left: 0;
	transform-origin: 0 0;
}

#canvas {
	display: block;
	image-rendering: pixelated;
	image-rendering: crisp-edges;
}

#drop-overlay {
	position: absolute;
	inset: 0;
	display: none;
	align-items: center;
	justify-content: center;
	background: rgba(255, 255, 255, 0.03);
	border: 2px dashed var(--accent);
	font-size: 14px;
	font-weight: 400;
	text-transform: uppercase;
	letter-spacing: 2px;
	color: var(--accent);
	pointer-events: none;
	z-index: 10;
}

#status {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--text-dim);
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 2px;
	pointer-events: none;
}

/* ===== Scrollbar ===== */

#sidebar::-webkit-scrollbar {
	width: 4px;
}

#sidebar::-webkit-scrollbar-track {
	background: var(--sidebar-bg);
}

#sidebar::-webkit-scrollbar-thumb {
	background: var(--border);
}