:root {
	--bg: #f6f7f9;
	--surface: #ffffff;
	--surface-2: #f0f2f5;
	--border: #dfe2e8;
	--text: #1d2330;
	--muted: #687083;
	--accent: #4f6bed;
	--accent-text: #ffffff;
	--danger: #d93f3f;
	--code-bg: #f0f2f5;
	--ok: #1f9d55;
	--warn: #d97706;
	--hl-keyword: #cf222e;
	--hl-string: #0a3069;
	--hl-number: #0550ae;
	--hl-comment: #6e7781;
	--hl-title: #8250df;
	--hl-type: #953800;
	--hl-attr: #116329;
	--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--font-mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
	--editor-font-size: 14px;
	color-scheme: light;
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) {
		--bg: #1b1e24;
		--surface: #282c34;
		--surface-2: #21252b;
		--border: #3a3f4b;
		--text: #dde1e8;
		--muted: #9098a8;
		--accent: #6d86ff;
		--danger: #f06a6a;
		--code-bg: #21252b;
		--ok: #3ecf7a;
		--warn: #f0a63a;
		--hl-keyword: #ff7b72;
		--hl-string: #a5d6ff;
		--hl-number: #79c0ff;
		--hl-comment: #8b949e;
		--hl-title: #d2a8ff;
		--hl-type: #ffa657;
		--hl-attr: #7ee787;
		color-scheme: dark;
	}
}

:root[data-theme="dark"] {
	--bg: #1b1e24;
	--surface: #282c34;
	--surface-2: #21252b;
	--border: #3a3f4b;
	--text: #dde1e8;
	--muted: #9098a8;
	--accent: #6d86ff;
	--danger: #f06a6a;
	--code-bg: #21252b;
	--ok: #3ecf7a;
	--warn: #f0a63a;
	--hl-keyword: #ff7b72;
	--hl-string: #a5d6ff;
	--hl-number: #79c0ff;
	--hl-comment: #8b949e;
	--hl-title: #d2a8ff;
	--hl-type: #ffa657;
	--hl-attr: #7ee787;
	color-scheme: dark;
}

* {
	box-sizing: border-box;
}

html, body {
	height: 100%;
	margin: 0;
}

body {
	display: flex;
	flex-direction: column;
	background: var(--bg);
	color: var(--text);
	font: 14px/1.4 var(--font-sans);
}

.toolbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px 20px;
	padding: 10px 16px;
	background: var(--surface);
	border-bottom: 1px solid var(--border);
}

.brand {
	font-weight: 700;
	font-size: 16px;
}

.group {
	display: flex;
	align-items: center;
	gap: 8px;
}

.button, select {
	height: 32px;
	padding: 0 12px;
	border: 1px solid var(--border);
	border-radius: 6px;
	background: var(--surface);
	color: var(--text);
	font: inherit;
	cursor: pointer;
}

.button {
	display: inline-flex;
	align-items: center;
	text-decoration: none;
	white-space: nowrap;
}

.button:hover:not(:disabled), select:hover:not(:disabled) {
	border-color: var(--accent);
}

.button:disabled, select:disabled {
	opacity: .55;
	cursor: default;
}

.button.danger {
	color: var(--danger);
}

body.read-only [data-edit-only] {
	display: none;
}

.button.primary, .button.toggle[aria-pressed="true"] {
	background: var(--accent);
	border-color: var(--accent);
	color: var(--accent-text);
}

.select {
	display: flex;
	align-items: center;
	gap: 6px;
	color: var(--muted);
}

.presence-bar {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-left: auto;
}

.presence {
	display: flex;
}

.avatar {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 26px;
	height: 26px;
	margin-left: -6px;
	border: 2px solid var(--surface);
	border-radius: 50%;
	color: #fff;
	font-size: 12px;
	font-weight: 600;
	cursor: default;
}

.avatar:first-child {
	margin-left: 0;
}

.avatar.self {
	box-shadow: 0 0 0 2px var(--accent);
}

.avatar.more {
	background: var(--muted);
}

.status {
	display: flex;
	align-items: center;
	gap: 6px;
	color: var(--muted);
}

.status .dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--warn);
}

.status[data-state="online"] .dot {
	background: var(--ok);
}

.banner {
	padding: 6px 16px;
	background: var(--surface-2);
	border-bottom: 1px solid var(--border);
	color: var(--muted);
}

.banner.error {
	color: var(--danger);
}

.workspace {
	flex: 1;
	min-height: 0;
	display: grid;
	grid-template-columns: 1fr;
	gap: 12px;
	padding: 12px;
}

.workspace.split {
	grid-template-columns: 1fr 1fr;
}

.pane {
	display: flex;
	flex-direction: column;
	min-height: 0;
	min-width: 0;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 8px;
	overflow: hidden;
}

.pane[hidden] {
	display: none;
}

.pane-title {
	padding: 6px 12px;
	border-bottom: 1px solid var(--border);
	color: var(--muted);
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: .04em;
}

.workspace:not(.split) .pane-title {
	display: none;
}

.pane-body {
	flex: 1;
	min-height: 0;
	overflow: auto;
}

#editor .cm-editor {
	height: 100%;
}

#editor .cm-editor.cm-focused {
	outline: none;
}

@media (max-width: 800px) {
	.workspace.split {
		grid-template-columns: 1fr;
		grid-template-rows: 1fr 1fr;
	}

	.presence-bar {
		margin-left: 0;
	}
}

.toast {
	position: fixed;
	left: 50%;
	bottom: 24px;
	transform: translate(-50%, 12px);
	padding: 8px 16px;
	border-radius: 6px;
	background: var(--text);
	color: var(--bg);
	opacity: 0;
	pointer-events: none;
	transition: opacity .15s, transform .15s;
}

.toast.visible {
	opacity: 1;
	transform: translate(-50%, 0);
}

/* Rendered Markdown */
.markdown-body {
	padding: 16px 24px;
	font-size: 15px;
	line-height: 1.6;
	overflow-wrap: break-word;
}

.markdown-body > :first-child {
	margin-top: 0;
}

.markdown-body h1, .markdown-body h2 {
	padding-bottom: .3em;
	border-bottom: 1px solid var(--border);
}

.markdown-body a {
	color: var(--accent);
}

.markdown-body code {
	padding: .15em .35em;
	border-radius: 4px;
	background: var(--code-bg);
	font: .9em var(--font-mono);
}

.markdown-body pre {
	padding: 12px 16px;
	border-radius: 6px;
	background: var(--code-bg);
	overflow: auto;
}

.markdown-body pre code {
	padding: 0;
	background: none;
}

.markdown-body blockquote {
	margin: 0;
	padding: 0 1em;
	border-left: 4px solid var(--border);
	color: var(--muted);
}

.markdown-body table {
	border-collapse: collapse;
}

.markdown-body th, .markdown-body td {
	padding: 6px 12px;
	border: 1px solid var(--border);
}

.markdown-body img {
	max-width: 100%;
}

.markdown-body hr {
	border: 0;
	border-top: 1px solid var(--border);
}

.markdown-body .katex-display {
	overflow-x: auto;
	overflow-y: hidden;
}

.mermaid-diagram {
	margin: 1em 0;
	text-align: center;
	color: var(--muted);
}

.mermaid-diagram.error {
	text-align: left;
	color: var(--danger);
	font: 13px var(--font-mono);
	white-space: pre-wrap;
}

/* highlight.js tokens */
.hljs-keyword, .hljs-meta .hljs-keyword, .hljs-selector-tag, .hljs-doctag {
	color: var(--hl-keyword);
}

.hljs-string, .hljs-regexp, .hljs-meta .hljs-string {
	color: var(--hl-string);
}

.hljs-number, .hljs-literal, .hljs-built_in, .hljs-symbol, .hljs-variable.language_ {
	color: var(--hl-number);
}

.hljs-comment, .hljs-quote {
	color: var(--hl-comment);
	font-style: italic;
}

.hljs-title, .hljs-title.function_, .hljs-section {
	color: var(--hl-title);
}

.hljs-type, .hljs-title.class_, .hljs-meta, .hljs-params {
	color: var(--hl-type);
}

.hljs-attr, .hljs-attribute, .hljs-name, .hljs-tag, .hljs-selector-class, .hljs-selector-id {
	color: var(--hl-attr);
}

/* Dialogs and forms */
.dialog {
	width: min(480px, calc(100vw - 32px));
	padding: 0;
	border: 1px solid var(--border);
	border-radius: 10px;
	background: var(--surface);
	color: var(--text);
	box-shadow: 0 12px 40px rgba(0, 0, 0, .25);
}

.dialog.wide {
	width: min(960px, calc(100vw - 32px));
}

.dialog::backdrop {
	background: rgba(15, 18, 25, .45);
}

.dialog-body {
	display: flex;
	flex-direction: column;
	gap: 16px;
	padding: 20px;
}

.dialog h2, .card h1 {
	margin: 0;
	font-size: 18px;
}

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

.field > label, .field > .label {
	font-weight: 600;
}

.field p {
	margin: 0;
}

.row {
	display: flex;
	gap: 8px;
	width: 100%;
}

.input {
	flex: 1;
	min-width: 0;
	height: 32px;
	padding: 0 10px;
	border: 1px solid var(--border);
	border-radius: 6px;
	background: var(--bg);
	color: var(--text);
	font: inherit;
}

.field > .input {
	width: 100%;
}

.input:focus {
	outline: 2px solid var(--accent);
	outline-offset: -1px;
}

.check {
	display: flex;
	align-items: center;
	gap: 8px;
}

.actions {
	display: flex;
	justify-content: flex-end;
	gap: 8px;
}

.muted {
	color: var(--muted);
}

.small {
	font-size: 12px;
}

.error {
	color: var(--danger);
}

.segmented {
	display: inline-flex;
	border: 1px solid var(--border);
	border-radius: 6px;
	overflow: hidden;
}

.segmented button {
	padding: 4px 12px;
	border: 0;
	background: var(--surface);
	color: var(--text);
	font: inherit;
	cursor: pointer;
}

.segmented button[aria-pressed="true"] {
	background: var(--accent);
	color: var(--accent-text);
}

.qr {
	align-self: center;
	width: 200px;
	padding: 8px;
	border-radius: 8px;
	background: #fff;
}

.qr svg {
	display: block;
	width: 100%;
	height: auto;
}

.swatches {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.swatch {
	width: 26px;
	height: 26px;
	border: 2px solid transparent;
	border-radius: 50%;
	cursor: pointer;
}

.swatch[aria-pressed="true"] {
	box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--text);
}

.history {
	display: grid;
	grid-template-columns: 260px 1fr;
	gap: 12px;
	height: min(60vh, 520px);
}

.history-list {
	margin: 0;
	padding: 0;
	overflow: auto;
	list-style: none;
	border: 1px solid var(--border);
	border-radius: 6px;
}

.history-list li.muted, .history-list li.error {
	padding: 10px 12px;
}

.history-list button {
	display: flex;
	flex-direction: column;
	gap: 2px;
	width: 100%;
	padding: 8px 12px;
	border: 0;
	border-bottom: 1px solid var(--border);
	background: none;
	color: var(--text);
	font: inherit;
	text-align: left;
	cursor: pointer;
}

.history-list li.selected button, .history-list button:hover {
	background: var(--surface-2);
}

.history-content {
	margin: 0;
	padding: 12px;
	overflow: auto;
	border: 1px solid var(--border);
	border-radius: 6px;
	background: var(--code-bg);
	font: 13px/1.5 var(--font-mono);
	white-space: pre-wrap;
	overflow-wrap: anywhere;
}

@media (max-width: 700px) {
	.history {
		grid-template-columns: 1fr;
		grid-template-rows: 160px 1fr;
	}
}

/* Password and "not found" pages */
.centered-page {
	align-items: center;
	justify-content: center;
	padding: 16px;
}

.card {
	display: flex;
	flex-direction: column;
	gap: 14px;
	width: min(400px, 100%);
	padding: 24px;
	border: 1px solid var(--border);
	border-radius: 10px;
	background: var(--surface);
}

.card p {
	margin: 0;
}