/* ============================================================
   Pixelfont Editor — matches the facelift64 dark showcase
   (relies on the variables/base rules from facelift64.css)
   ============================================================ */

/* wider canvas than the article pages */
.tool-wrap {
	max-width: 1180px;
	margin: 0 auto;
	padding: 0 24px;
}

.tool-hero {
	padding: 5vh 0 3vh;
}

.tool-hero h1 {
	font-family: var(--mono);
	font-weight: 700;
	font-size: clamp(30px, 5vw, 52px);
	letter-spacing: 0.02em;
	line-height: 1;
	margin: 0 0 0.5em;
}

.tool-hero h1 .dot {
	color: var(--gold);
}

.tool-hero .lede {
	color: var(--mute);
	font-size: 16px;
	max-width: 70ch;
	margin: 0;
}

/* ---------- editor shell ---------- */

.editor {
	display: grid;
	grid-template-columns: minmax(300px, 1fr) 2fr;
	gap: 22px;
	align-items: start;
	margin: 2vh 0 6vh;
}

.panel {
	background: var(--panel);
	border: 1px solid var(--line);
	padding: 18px 18px 20px;
}

.panel + .panel {
	margin-top: 18px;
}

.panel > h3,
.section-title {
	font-family: var(--mono);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--gold);
	margin: 0 0 14px;
}

/* ---------- left column: glyph editor ---------- */

.editor-left {
	align-self: start;
}

.glyph-tools {
	display: flex;
	flex-wrap: wrap;
	gap: 6px 10px;
	margin-bottom: 12px;
}

.tool-group {
	display: flex;
	gap: 4px;
	align-items: center;
}

.tool-group + .tool-group {
	padding-left: 10px;
	border-left: 1px solid var(--line);
}

.glyph-stage {
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 12px;
	display: flex;
	justify-content: center;
	align-items: center;
}

#glyphCanvas {
	display: block;
	max-width: 100%;
	height: auto;
	image-rendering: pixelated;
	cursor: crosshair;
	touch-action: none;
	/* checkerboard is drawn on the canvas, aligned to the pixel grid */
	background-color: #10151c;
}

.glyph-meta {
	display: flex;
	justify-content: space-between;
	gap: 1em;
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.06em;
	color: var(--faint);
	margin-top: 12px;
	flex-wrap: wrap;
}

.glyph-meta b {
	color: var(--gold);
	font-weight: 600;
}

.glyph-width-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-top: 14px;
	font-family: var(--mono);
	font-size: 12px;
	color: var(--mute);
}

.glyph-width-row.hidden {
	display: none;
}

/* ---------- toolbar (import / export) ---------- */

.toolbar {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
}

button.btn,
label.btn {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 9px 16px;
	cursor: pointer;
	transition:
		border-color 0.15s,
		color 0.15s;
}

button.btn:hover,
label.btn:hover {
	border-color: var(--gold-dim);
	color: var(--gold);
}

button.btn.icon {
	width: 30px;
	height: 30px;
	padding: 0;
	font-size: 16px;
	line-height: 1;
}

button.btn:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

button.btn:disabled:hover {
	border-color: var(--line);
	color: var(--ink);
}

/* ---------- font settings form ---------- */

.settings-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
	gap: 14px 18px;
}

.field {
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.field label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--mute);
}

.field select,
.field input[type="number"],
.field input[type="text"] {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	border-radius: 0;
	padding: 8px 10px;
	width: 100%;
	color-scheme: dark; /* render native spinner/dropdown arrows light */
}

/* selects: strip native chrome and use a matching chevron so height,
   padding and square corners line up with the text inputs */
.field select {
	appearance: none;
	-webkit-appearance: none;
	-moz-appearance: none;
	padding-right: 30px;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%238794a2' stroke-width='1.4'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 10px center;
}

.field select:focus,
.field input:focus {
	outline: none;
	border-color: var(--gold-dim);
}

.field.toggle {
	flex-direction: row;
	align-items: center;
	gap: 10px;
}

.field.toggle label {
	order: 2;
}

/* switch */
.switch {
	--w: 40px;
	--h: 22px;
	position: relative;
	display: inline-block;
	width: var(--w);
	height: var(--h);
	flex: 0 0 auto;
}

.switch input {
	position: absolute;
	opacity: 0;
	width: 100%;
	height: 100%;
	margin: 0;
	cursor: pointer;
}

.switch .track {
	position: absolute;
	inset: 0;
	background: var(--panel2);
	border: 1px solid var(--line);
	border-radius: 999px;
	transition: background 0.15s, border-color 0.15s;
	pointer-events: none; /* let clicks reach the checkbox underneath */
}

.switch .track::before {
	content: "";
	position: absolute;
	top: 2px;
	left: 2px;
	width: calc(var(--h) - 6px);
	height: calc(var(--h) - 6px);
	background: var(--mute);
	border-radius: 50%;
	transition: transform 0.15s, background 0.15s;
}

.switch input:checked + .track {
	border-color: var(--gold-dim);
}

.switch input:checked + .track::before {
	transform: translateX(calc(var(--w) - var(--h) + 2px));
	background: var(--gold);
}

/* ---------- palette ---------- */

.palette-swatches {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-bottom: 16px;
}

.swatch {
	width: 30px;
	height: 30px;
	border: 1px solid var(--line);
	cursor: pointer;
	position: relative;
	padding: 0;
	background-clip: padding-box;
}

.swatch.selected {
	outline: 2px solid var(--gold);
	outline-offset: 1px;
	z-index: 1;
}

.swatch .idx {
	position: absolute;
	bottom: 1px;
	right: 2px;
	font-family: var(--mono);
	font-size: 8px;
	color: rgba(255, 255, 255, 0.55);
	mix-blend-mode: difference;
	pointer-events: none;
}

/* transparency marker for background index when alpha is on */
.swatch.transparent {
	background-image:
		linear-gradient(45deg, #444 25%, transparent 25%),
		linear-gradient(-45deg, #444 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, #444 75%),
		linear-gradient(-45deg, transparent 75%, #444 75%);
	background-size: 10px 10px;
	background-position: 0 0, 0 5px, 5px -5px, -5px 0;
}

.color-editor {
	display: grid;
	grid-template-columns: 44px 1fr;
	gap: 10px 14px;
	align-items: center;
}

.color-preview {
	width: 44px;
	height: 44px;
	border: 1px solid var(--line);
	grid-row: span 3;
}

.color-preview.transparent {
	background-image:
		linear-gradient(45deg, #444 25%, transparent 25%),
		linear-gradient(-45deg, #444 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, #444 75%),
		linear-gradient(-45deg, transparent 75%, #444 75%);
	background-size: 12px 12px;
	background-position: 0 0, 0 6px, 6px -6px, -6px 0;
}

/* transparent index can't be edited */
.slider-row input:disabled,
.hex-row input:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.slider-row {
	display: grid;
	grid-template-columns: 16px 1fr 46px;
	gap: 10px;
	align-items: center;
	font-family: var(--mono);
	font-size: 12px;
	color: var(--mute);
}

.slider-row input[type="range"] {
	-webkit-appearance: none;
	appearance: none;
	width: 100%;
	height: 4px;
	background: var(--panel2);
	border: 1px solid var(--line);
	outline: none;
	cursor: pointer;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 14px;
	height: 14px;
	background: var(--gold);
	border: none;
	cursor: pointer;
}

.slider-row input[type="range"]::-moz-range-thumb {
	width: 14px;
	height: 14px;
	background: var(--gold);
	border: none;
	cursor: pointer;
}

.slider-row input[type="number"] {
	font-family: var(--mono);
	font-size: 12px;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	border-radius: 0;
	padding: 4px 6px;
	width: 100%;
	color-scheme: dark; /* light spinner arrows */
}

.hex-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-top: 12px;
	font-family: var(--mono);
	font-size: 12px;
	color: var(--mute);
}

.hex-row input {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 6px 8px;
	width: 100px;
	text-transform: uppercase;
}

/* ---------- charset map ---------- */

.charset-wrap {
	overflow-x: auto;
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 8px;
}

#charsetCanvas {
	display: block;
	image-rendering: pixelated;
	cursor: pointer;
	/* checkerboard is drawn on the canvas, aligned to the glyph grid */
}

/* ---------- text preview ---------- */

.preview-input {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 10px 12px;
	width: 100%;
	resize: vertical;
	min-height: 54px;
	margin-bottom: 12px;
}

.preview-input:focus {
	outline: none;
	border-color: var(--gold-dim);
}

.preview-toolbar {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 12px;
}

.preview-toolbar label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--mute);
}

.preview-toolbar select {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--ink);
	background: var(--panel2);
	border: 1px solid var(--line);
	border-radius: 0;
	padding: 7px 30px 7px 10px;
	color-scheme: dark;
	appearance: none;
	-webkit-appearance: none;
	-moz-appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%238794a2' stroke-width='1.4'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 10px center;
}

.preview-toolbar select:focus {
	outline: none;
	border-color: var(--gold-dim);
}

.preview-wrap {
	overflow-x: auto;
	background: var(--panel2);
	border: 1px solid var(--line);
	padding: 12px;
}

#previewCanvas {
	display: block;
	image-rendering: pixelated;
}

/* ---------- image import modal ---------- */

.import-overlay {
	position: fixed;
	inset: 0;
	z-index: 100;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(6, 8, 11, 0.86);
	padding: 3vh 3vw;
}

.import-overlay[hidden] {
	display: none;
}

.import-dialog {
	background: var(--panel);
	border: 1px solid var(--line);
	width: 100%;
	max-width: 1120px;
	max-height: 94vh;
	display: flex;
	flex-direction: column;
	transition: border-color 0.15s;
}

.import-overlay.dragging .import-dialog {
	border-color: var(--gold);
}

.import-head {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 13px 18px;
	border-bottom: 1px solid var(--line);
}

.import-head h3 {
	font-family: var(--mono);
	font-size: 13px;
	font-weight: 600;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--gold);
	margin: 0;
}

.import-body {
	display: grid;
	grid-template-columns: 1fr 320px;
	min-height: 0;
	flex: 1;
}

.import-stage {
	overflow: auto;
	background: var(--panel2);
	border-right: 1px solid var(--line);
	min-height: 0;
	display: flex;
}

.import-dropzone {
	margin: auto;
	text-align: center;
	color: var(--mute);
	padding: 48px;
	border: 2px dashed var(--line);
}

.import-dropzone .btn {
	margin: 6px 0;
}

.import-dropzone .hint {
	color: var(--faint);
	font-size: 12px;
	margin: 0;
}

.import-canvas-wrap {
	padding: 0;
}

#importCanvas {
	display: block;
	image-rendering: pixelated;
	cursor: crosshair;
	/* checkerboard so transparent areas of the source image are visible */
	background-color: #10151c;
	background-image:
		linear-gradient(45deg, #191f28 25%, transparent 25%),
		linear-gradient(-45deg, #191f28 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, #191f28 75%),
		linear-gradient(-45deg, transparent 75%, #191f28 75%);
	background-size: 16px 16px;
	background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.import-side {
	display: flex;
	flex-direction: column;
	padding: 16px;
	gap: 14px;
	overflow-y: auto;
}

.import-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px 14px;
}

.import-row-full {
	grid-column: 1 / -1;
}

/* export preview pane (text / hex dump) */
.import-stage.export-preview {
	display: block;
	padding: 0;
	border-right: none;
}

#exportPreview {
	margin: 0;
	padding: 14px 16px;
	font-family: var(--mono);
	font-size: 12px;
	line-height: 1.5;
	color: var(--ink);
	white-space: pre;
	min-width: 100%;
	border: none;
	border-left: 2px solid var(--gold-dim);
}

.switch input:disabled + .track {
	opacity: 0.4;
	cursor: not-allowed;
}

.import-grid input[type="range"] {
	-webkit-appearance: none;
	appearance: none;
	width: 100%;
	height: 4px;
	background: var(--panel2);
	border: 1px solid var(--line);
	outline: none;
	cursor: pointer;
}

.import-grid input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 14px;
	height: 14px;
	background: var(--gold);
	border: none;
	cursor: pointer;
}

.import-grid input[type="range"]::-moz-range-thumb {
	width: 14px;
	height: 14px;
	background: var(--gold);
	border: none;
	cursor: pointer;
}

.import-info {
	font-family: var(--mono);
	font-size: 12px;
	color: var(--mute);
	line-height: 1.7;
	border-top: 1px solid var(--line);
	border-bottom: 1px solid var(--line);
	padding: 12px 0;
}

.import-info b {
	color: var(--gold);
	font-weight: 600;
}

.import-actions {
	display: flex;
	gap: 10px;
	margin-top: auto;
}

.import-actions .btn {
	flex: 1;
	text-align: center;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
	.editor {
		grid-template-columns: 1fr;
	}

	.editor-left {
		position: static;
	}

	.import-body {
		grid-template-columns: 1fr;
	}

	.import-stage {
		border-right: none;
		border-bottom: 1px solid var(--line);
		max-height: 45vh;
	}
}