/* ============ 设计令牌 ============ */
:root {
	--bg: #f5f6fa;
	--surface: #ffffff;
	--surface-2: #f0f1f6;
	--border: #e3e5ee;
	--text: #1c1f2a;
	--muted: #6b7180;
	--primary: #4f46e5;
	--primary-weak: #eceafd;
	--danger: #dc2626;
	--ok: #10b981;
	--warn: #f59e0b;
	--radius: 14px;
	--shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);
	--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html[data-theme="dark"] {
	--bg: #0f1117;
	--surface: #171a23;
	--surface-2: #1e222d;
	--border: #2a2f3c;
	--text: #e6e8ef;
	--muted: #98a0b3;
	--primary: #7c75ff;
	--primary-weak: #232136;
	--danger: #f87171;
	--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
}

/* ============ 基础 ============ */
* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
}

body {
	background: var(--bg);
	color: var(--text);
	font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--primary);
	text-decoration: none;
}

h1,
h2,
h3 {
	margin: 0;
	font-weight: 600;
}

h2 {
	font-size: 15px;
}

h3 {
	font-size: 14px;
}

.muted {
	color: var(--muted);
	font-size: 12px;
}

.hide {
	display: none !important;
}

.app {
	max-width: 1280px;
	margin: 0 auto;
	padding: 16px;
}

/* ============ 顶栏 ============ */
.topbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 8px 4px 16px;
}

.brand {
	display: flex;
	align-items: center;
	gap: 10px;
}

.logo {
	width: 30px;
	height: 30px;
	border-radius: 9px;
	background: var(--primary);
	color: #fff;
	display: grid;
	place-items: center;
	font-size: 17px;
}

.brand-name {
	font-size: 16px;
	font-weight: 650;
	letter-spacing: .2px;
}

.ver-tag {
	font-size: 11px;
	color: var(--muted);
	border: 1px solid var(--border);
	padding: 2px 8px;
	border-radius: 999px;
	background: var(--surface);
}

.top-actions {
	display: flex;
	gap: 8px;
}

/* ============ 按钮 ============ */
.btn {
	appearance: none;
	border: 1px solid var(--border);
	background: var(--surface);
	color: var(--text);
	padding: 8px 14px;
	border-radius: 10px;
	font-size: 13px;
	font-weight: 500;
	cursor: pointer;
	transition: .15s;
	white-space: nowrap;
}

.btn:hover {
	border-color: var(--primary);
	color: var(--primary);
}

.btn:disabled {
	opacity: .45;
	cursor: not-allowed;
}

.btn.primary {
	background: var(--primary);
	border-color: var(--primary);
	color: #fff;
}

.btn.primary:hover {
	filter: brightness(1.08);
	color: #fff;
}

.btn.ghost {
	background: transparent;
}

.btn.danger {
	color: var(--danger);
	border-color: color-mix(in srgb, var(--danger) 40%, var(--border));
}

.btn.icon {
	padding: 8px 10px;
}

.btn.small {
	padding: 5px 10px;
	font-size: 12px;
}

.btn.block {
	width: 100%;
}

/* ============ 布局 ============ */
.layout {
	display: grid;
	grid-template-columns: 300px minmax(0, 1fr);
	gap: 16px;
	align-items: start;
}

.sidebar {
	display: grid;
	gap: 16px;
	position: sticky;
	top: 16px;
}

.main {
	display: grid;
	gap: 12px;
	min-width: 0;
}

/* ============ 卡片 ============ */
.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 16px;
	box-shadow: var(--shadow);
}

.card-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-bottom: 12px;
}

.chip {
	font-size: 11px;
	padding: 3px 9px;
	border-radius: 999px;
	background: var(--surface-2);
	color: var(--muted);
}

.chip.on {
	background: color-mix(in srgb, var(--ok) 15%, transparent);
	color: var(--ok);
}

/* 设备信息 */
.kv {
	margin: 0;
	display: grid;
	gap: 8px;
}

.kv>div {
	display: flex;
	justify-content: space-between;
	gap: 10px;
	font-size: 13px;
}

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

.kv dd {
	margin: 0;
	font-weight: 500;
	text-align: right;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	max-width: 170px;
}

.quick {
	margin-top: 14px;
	display: grid;
	gap: 8px;
}

.row {
	display: flex;
	gap: 8px;
}

.row.end {
	justify-content: flex-end;
}

.row.wrap {
	flex-wrap: wrap;
}

.row>.btn {
	flex: 1;
}

.hint ol {
	margin: 8px 0;
	padding-left: 18px;
	color: var(--muted);
}

.hint li {
	margin-bottom: 4px;
	font-size: 12.5px;
}

/* ============ 标签页 ============ */
.tabs {
	display: flex;
	gap: 4px;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 4px;
	box-shadow: var(--shadow);
	overflow: auto;
}

.tab {
	flex: 1;
	appearance: none;
	border: 0;
	background: transparent;
	color: var(--muted);
	padding: 8px 14px;
	border-radius: 9px;
	font-size: 13px;
	font-weight: 500;
	cursor: pointer;
	white-space: nowrap;
}

.tab.active {
	background: var(--primary-weak);
	color: var(--primary);
}

.tabpane {
	display: none;
	gap: 12px;
}

.tabpane.active {
	display: grid;
}

/* ============ 二级页签 / 折叠卡片 ============ */
.segmented {
	display: inline-flex;
	gap: 4px;
	padding: 4px;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 12px;
	box-shadow: var(--shadow);
	width: fit-content;
}

.seg {
	appearance: none;
	border: 0;
	background: transparent;
	color: var(--muted);
	padding: 7px 18px;
	border-radius: 9px;
	font-size: 13px;
	cursor: pointer;
	white-space: nowrap;
}

.seg.active {
	background: var(--primary-weak);
	color: var(--primary);
	font-weight: 600;
}

.subpane {
	display: none;
	gap: 12px;
}

.subpane.active {
	display: grid;
}

details.card>summary {
	list-style: none;
	display: flex;
	align-items: center;
	gap: 8px;
	cursor: pointer;
}

details.card>summary::-webkit-details-marker {
	display: none;
}

details.card>summary .muted {
	margin-left: auto;
}

details.card>summary::after {
	content: '▾';
	color: var(--muted);
	font-size: 12px;
	transition: transform .2s;
}

details.card[open]>summary::after {
	transform: rotate(180deg);
}

/* ============ 表单 ============ */
.grid-2 {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}

.span-2 {
	grid-column: span 2;
}

.field {
	display: grid;
	gap: 6px;
	font-size: 12px;
	color: var(--muted);
}

.field>span {
	display: flex;
	justify-content: space-between;
}

.field b {
	color: var(--text);
	font-weight: 600;
}

select,
input[type=text],
input[type=number],
input[type=file] {
	width: 100%;
	padding: 8px 10px;
	border-radius: 9px;
	border: 1px solid var(--border);
	background: var(--surface-2);
	color: var(--text);
	font-size: 13px;
	outline: none;
}

select:focus,
input:focus {
	border-color: var(--primary);
}

input[type=range] {
	width: 100%;
	accent-color: var(--primary);
}

textarea {
	width: 100%;
	padding: 10px;
	border-radius: 10px;
	border: 1px solid var(--border);
	background: var(--surface-2);
	color: var(--text);
	font: 13px/1.7 var(--mono);
	resize: vertical;
	outline: none;
}

textarea:focus {
	border-color: var(--primary);
}

#slideList {
	min-height: 26px;
	align-items: center;
	gap: 4px;
	color: var(--muted);
	font-size: 12px;
}

#slideList .chip {
	margin: 2px 4px 2px 0;
}

/* 清单编辑器 */
.list-rows {
	display: grid;
	gap: 6px;
}

.list-row {
	display: flex;
	gap: 6px;
	align-items: center;
}

.list-row .lr-time {
	width: 92px;
	flex: none;
}

.list-row .lr-text {
	flex: 1;
}

.list-row.done .lr-text {
	color: var(--muted);
	text-decoration: line-through;
}

.list-row .mini {
	flex: none;
}

/* ============ 画布 ============ */
.canvas-card {
	display: grid;
	gap: 12px;
}

.canvas-container {
	position: relative;
	background: var(--surface-2);
	border: 1px dashed var(--border);
	border-radius: 12px;
	padding: 12px;
	display: grid;
	place-items: center;
	overflow: auto;
}

.canvas-container canvas {
	max-width: 100%;
	height: auto;
	background: #fff;
	box-shadow: 0 2px 10px rgba(0, 0, 0, .08);
	cursor: default;
	image-rendering: pixelated;
}

.canvas-container.brush-mode canvas,
.canvas-container.eraser-mode canvas {
	cursor: crosshair;
}

.canvas-container.text-mode canvas {
	cursor: text;
}

.toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	padding: 8px;
	border-radius: 12px;
	background: var(--surface-2);
}

.tool-group {
	display: flex;
	align-items: center;
	gap: 6px;
	flex-wrap: wrap;
}

.tool-btn {
	width: 32px;
	height: 32px;
	border-radius: 9px;
	border: 1px solid var(--border);
	background: var(--surface);
	color: var(--text);
	cursor: pointer;
	font-size: 14px;
}

.tool-btn:hover {
	border-color: var(--primary);
	color: var(--primary);
}

.tool-btn.active,
.tool-btn.primary {
	background: var(--primary);
	border-color: var(--primary);
	color: #fff;
}

.mini {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 12px;
	color: var(--muted);
	white-space: nowrap;
}

.mini select,
.mini input {
	width: auto;
	padding: 5px 8px;
	font-size: 12px;
}

.text-input {
	width: 140px !important;
}

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

.canvas-actions .primary {
	margin-left: auto;
}

/* ============ 状态 / 进度 ============ */
.status-bar {
	display: flex;
	gap: 8px;
	align-items: center;
	font-size: 12.5px;
	color: var(--muted);
	min-height: 20px;
}

.status-label {
	padding: 1px 7px;
	border-radius: 6px;
	background: var(--surface-2);
	font-size: 11px;
}

#status {
	color: var(--text);
}

.progress {
	height: 4px;
	border-radius: 999px;
	background: var(--surface-2);
	overflow: hidden;
}

.progress i {
	display: block;
	height: 100%;
	width: 0;
	background: var(--primary);
	transition: width .2s;
}

/* ============ 模式卡片 ============ */
.mode-cards {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	margin: 14px 0 8px;
}

.mode-card {
	text-align: left;
	display: grid;
	gap: 4px;
	padding: 14px;
	border-radius: 12px;
	border: 1px solid var(--border);
	background: var(--surface-2);
	cursor: pointer;
	transition: .15s;
	color: var(--text);
}

.mode-card:hover {
	border-color: var(--primary);
	transform: translateY(-1px);
}

.mode-icon {
	font-size: 20px;
}

.mode-title {
	font-weight: 600;
}

.mode-desc {
	font-size: 12px;
	color: var(--muted);
}

/* ============ 日志 ============ */
.log-container {
	height: 380px;
	overflow: auto;
	background: var(--surface-2);
	border-radius: 10px;
	padding: 10px;
	font: 12px/1.6 var(--mono);
	color: var(--muted);
}

.log-line {
	display: flex;
	gap: 8px;
	word-break: break-all;
}

.log-line .time {
	color: var(--muted);
	opacity: .7;
	flex: none;
}

.log-line .action {
	color: var(--primary);
	flex: none;
}

/* ============ 页脚 ============ */
.footer {
	display: flex;
	justify-content: center;
	gap: 8px;
	padding: 22px 0 8px;
	color: var(--muted);
	font-size: 12px;
}

/* ============ 响应式 ============ */
@media (max-width: 980px) {
	.layout {
		grid-template-columns: 1fr;
	}

	.sidebar {
		position: static;
	}

	.grid-2 {
		grid-template-columns: 1fr;
	}

	.span-2 {
		grid-column: auto;
	}

	.mode-cards {
		grid-template-columns: 1fr;
	}

	.canvas-actions .primary {
		margin-left: 0;
		width: 100%;
	}

	.segmented {
		width: 100%;
	}

	.seg {
		flex: 1;
		padding: 7px 8px;
	}
}