/* Montserrat (latin, variable weight) is served from here so the page makes no third-party requests. */
@font-face {
	font-family: Montserrat;
	font-style: normal;
	font-weight: 400 700;
	font-display: swap;
	src: url("./fonts/montserrat-latin.woff2") format("woff2");
}

:root {
	color-scheme: light dark;
	--bg: #f5f3ee;
	--panel: #ffffff;
	--text: #1c1b19;
	--muted: #6b675f;
	--border: #e2ded5;
	--border-strong: #cdc7ba;
	--ink: #1c1b19;
	--ink-text: #ffffff;
	--accent: #a8481f;
	--error: #b3261e;
	--shadow: 0 1px 2px rgb(40 30 10 / .06), 0 10px 28px rgb(40 30 10 / .08);
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #141413;
		--panel: #1d1d1b;
		--text: #ecebe7;
		--muted: #a09c93;
		--border: #2e2d2a;
		--border-strong: #45433e;
		--ink: #ecebe7;
		--ink-text: #141413;
		--accent: #e39b74;
		--error: #ff8a80;
		--shadow: 0 1px 2px rgb(0 0 0 / .4), 0 10px 28px rgb(0 0 0 / .35);
	}
}

* {
	box-sizing: border-box;
}

html, body {
	height: 100%;
}

body {
	margin: 0;
	display: flex;
	flex-direction: column;
	font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
	font-size: 14px;
	line-height: 1.4;
	color: var(--text);
	background: var(--bg);
	-webkit-font-smoothing: antialiased;
}

.app-header {
	font-family: Montserrat, system-ui, -apple-system, "Segoe UI", sans-serif;
	padding: 10px 24px;
	border-bottom: 1px solid var(--border);
}

.app-header-bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px 24px;
}

.app-header h1 {
	display: flex;
	align-items: center;
	gap: 12px;
	margin: 0;
	font-size: 24px;
	font-weight: 700;
	line-height: 1;
	letter-spacing: -.02em;
}

.app-logo {
	display: block;
	width: 40px;
	height: 40px;
}

.app-header p {
	flex: 1 1 320px;
	margin: 0;
	color: var(--muted);
}

.app-links {
	display: flex;
	align-items: center;
	gap: 20px;
}

.app-links a {
	color: var(--muted);
	text-decoration: none;
	border-radius: 4px;
	transition: color .15s;
}

.app-links a:hover {
	color: var(--text);
}

.app-links a:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

.app-main {
	flex: 1;
	min-height: 0;
	display: grid;
	grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
	gap: 24px;
	padding: 16px 24px 20px;
}

.pane {
	display: flex;
	flex-direction: column;
	min-height: 0;
	gap: 12px;
}

.toolbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	min-height: 34px;
}

.spacer {
	flex: 1;
}

button {
	font: inherit;
	font-weight: 500;
	padding: 6px 14px;
	border: 1px solid var(--border-strong);
	border-radius: 8px;
	color: var(--text);
	background: transparent;
	cursor: pointer;
	transition: background-color .15s, border-color .15s, opacity .15s;
}

button:hover:not(:disabled) {
	background: var(--panel);
	border-color: var(--muted);
}

button:disabled {
	opacity: .45;
	cursor: default;
}

button.primary {
	border-color: var(--ink);
	color: var(--ink-text);
	background: var(--ink);
}

button.primary:hover:not(:disabled) {
	background: var(--ink);
	border-color: var(--ink);
	opacity: .85;
}

button:focus-visible, input:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

.toggle {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	white-space: nowrap;
	cursor: pointer;
}

.toggle input {
	appearance: none;
	position: relative;
	width: 32px;
	height: 18px;
	margin: 0;
	border-radius: 9px;
	background: var(--border-strong);
	cursor: pointer;
	transition: background-color .15s;
}

.toggle input::before {
	content: "";
	position: absolute;
	top: 2px;
	left: 2px;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: #ffffff;
	box-shadow: 0 1px 2px rgb(0 0 0 / .25);
	transition: transform .15s;
}

.toggle input:checked {
	background: var(--ink);
}

.toggle input:checked::before {
	background: var(--ink-text);
	transform: translateX(14px);
}

/* The chart's details and its text are one card: fields on top, source below. */
.editor {
	flex: 1;
	min-height: 0;
	display: flex;
	flex-direction: column;
	overflow: hidden;
	border: 1px solid var(--border);
	border-radius: 10px;
	background: var(--panel);
}

.metadata {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 12px;
	padding: 16px;
	border-bottom: 1px solid var(--border);
}

.metadata label {
	display: flex;
	flex-direction: column;
	gap: 4px;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--muted);
}

.metadata .wide {
	grid-column: 1 / -1;
}

.metadata input, .metadata textarea {
	width: 100%;
	padding: 7px 10px;
	border: 1px solid var(--border);
	border-radius: 6px;
	font: inherit;
	font-size: 14px;
	font-weight: 400;
	letter-spacing: normal;
	text-transform: none;
	color: var(--text);
	background: transparent;
	resize: none;
	transition: border-color .15s, box-shadow .15s;
}

.metadata input:hover, .metadata textarea:hover {
	border-color: var(--border-strong);
}

.metadata input:focus, .metadata textarea:focus {
	outline: none;
	border-color: var(--accent);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

::placeholder {
	color: var(--muted);
	opacity: .7;
}

#source {
	flex: 1;
	min-height: 240px;
	padding: 16px;
	border: 0;
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: 13px;
	line-height: 1.55;
	color: var(--text);
	background: transparent;
	resize: none;
}

#source:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: -2px;
	border-radius: 0 0 9px 9px;
}

#editor-pane.dragging .editor {
	border-color: var(--accent);
	border-style: dashed;
}

/* The chart is always shown on white, the way it prints. */
.sheet {
	position: relative;
	flex: 1;
	min-height: 320px;
	overflow: hidden;
	padding-left: 16px;
	border-radius: 4px;
	background: #ffffff;
	box-shadow: var(--shadow);
}

#preview {
	display: block;
	width: 100%;
	height: 100%;
	border: 0;
}

.app-main:has(#source:placeholder-shown) .sheet::after {
	content: "Your chart will appear here";
	position: absolute;
	inset: 0;
	display: grid;
	place-items: center;
	color: #6b675f;
}

.message {
	margin: 0;
	color: var(--error);
}

.message:empty {
	display: none;
}

.notice {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin: 0;
	padding: 8px 16px;
	border-bottom: 1px solid var(--border);
	font-size: 13px;
	color: var(--muted);
	background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.notice[hidden] {
	display: none;
}

.notice button {
	padding: 2px 10px;
	font-size: 13px;
}

.hint {
	margin: 0;
	font-size: 12px;
	text-align: center;
	color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
	* {
		transition: none !important;
	}
}

@media (max-width: 800px) {
	html, body {
		height: auto;
	}

	.app-header {
		padding: 10px 16px;
	}

	.app-main {
		grid-template-columns: minmax(0, 1fr);
		padding: 16px;
	}

	.sheet {
		flex: none;
		height: 70vh;
		padding-left: 4px;
	}
}