:root {
	--bg-primary: #f0f2f5;
	--bg-card: #ffffff;
	--fg-primary: #1a1a2e;
	--fg-secondary: #64748b;
	--border-color: #e2e8f0;
	--accent: #3b82f6;
	--accent-hover: #2563eb;
	--rx-color: #3b82f6;
	--rx-bg: #93c5fd;
	--tx-color: #f59e0b;
	--tx-bg: #fcd34d;
	--total-color: #10b981;
	--total-bg: #6ee7b7;
	--shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.1);
	--radius: 12px;
	--radius-sm: 8px;
	--font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--transition: 200ms ease;
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) {
		--bg-primary: #0f172a;
		--bg-card: #1e293b;
		--fg-primary: #f1f5f9;
		--fg-secondary: #94a3b8;
		--border-color: #334155;
		--shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
		--shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
	}
}

[data-theme="dark"] {
	--bg-primary: #0f172a;
	--bg-card: #1e293b;
	--fg-primary: #f1f5f9;
	--fg-secondary: #94a3b8;
	--border-color: #334155;
	--shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
	--shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
}

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

body {
	margin: 0;
	background-color: var(--bg-primary);
	color: var(--fg-primary);
	font-family: var(--font-sans);
	line-height: 1.5;
	-webkit-font-smoothing: antialiased;
}

.dashboard {
	max-width: 1200px;
	margin: 0 auto;
	padding: 1.5rem;
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

/* Header */
.dashboard-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	background: var(--bg-card);
	border-radius: var(--radius);
	padding: 1rem 1.5rem;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
}

.header-title h1 {
	margin: 0;
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: -0.02em;
}

.header-subtitle {
	font-size: 0.8rem;
	color: var(--fg-secondary);
	font-weight: 400;
}

.theme-toggle {
	background: none;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-sm);
	width: 40px;
	height: 40px;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--fg-primary);
	font-size: 1.2rem;
	transition: background var(--transition), border-color var(--transition);
}

.theme-toggle:hover {
	background: var(--bg-primary);
	border-color: var(--accent);
}

/* Controls Bar */
.controls-bar {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	align-items: flex-end;
	background: var(--bg-card);
	border-radius: var(--radius);
	padding: 1rem 1.5rem;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
}

.control-group {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.control-group > label:first-child {
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--fg-secondary);
	text-transform: uppercase;
	letter-spacing: 0.04em;
}

.controls-bar select,
.controls-bar input[type="number"] {
	appearance: none;
	-webkit-appearance: none;
	background-color: var(--bg-primary);
	color: var(--fg-primary);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-sm);
	padding: 0.5rem 0.75rem;
	font-family: var(--font-sans);
	font-size: 0.875rem;
	font-weight: 500;
	transition: border-color var(--transition), box-shadow var(--transition);
	min-width: 120px;
}

.controls-bar select {
	padding-right: 2rem;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 0.6rem center;
	cursor: pointer;
}

.controls-bar select:focus,
.controls-bar input[type="number"]:focus {
	outline: none;
	border-color: var(--accent);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.controls-bar input[type="number"] {
	width: 80px;
}

/* Toggle Switch */
.toggle-switch {
	position: relative;
	display: inline-block;
	width: 44px;
	height: 24px;
	cursor: pointer;
}

.toggle-switch input {
	opacity: 0;
	width: 0;
	height: 0;
	position: absolute;
}

.toggle-slider {
	position: absolute;
	inset: 0;
	background-color: var(--border-color);
	border-radius: 12px;
	transition: background-color var(--transition);
}

.toggle-slider::before {
	content: '';
	position: absolute;
	height: 18px;
	width: 18px;
	left: 3px;
	bottom: 3px;
	background-color: white;
	border-radius: 50%;
	transition: transform var(--transition);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
	background-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider::before {
	transform: translateX(20px);
}

.toggle-switch input:focus-visible + .toggle-slider {
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Stats Cards */
.stats-cards {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1rem;
}

.stat-card {
	background: var(--bg-card);
	border-radius: var(--radius);
	padding: 1.25rem;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
	border-left: 4px solid var(--border-color);
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.stat-card.stat-rx {
	border-left-color: var(--rx-color);
}

.stat-card.stat-tx {
	border-left-color: var(--tx-color);
}

.stat-card.stat-peak {
	border-left-color: #ef4444;
}

.stat-card.stat-total {
	border-left-color: var(--total-color);
}

.stat-label {
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--fg-secondary);
	text-transform: uppercase;
	letter-spacing: 0.04em;
}

.stat-value {
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: -0.02em;
}

/* Chart Section */
.chart-section {
	width: 100%;
}

.chart-card {
	background: var(--bg-card);
	border-radius: var(--radius);
	padding: 1.5rem;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
	position: relative;
	min-height: 300px;
}

.chart-card canvas {
	width: 100% !important;
}

/* Loading Overlay */
.loading-overlay {
	position: absolute;
	inset: 0;
	background: var(--bg-card);
	opacity: 0;
	border-radius: var(--radius);
	display: flex;
	align-items: center;
	justify-content: center;
	pointer-events: none;
	transition: opacity var(--transition);
	z-index: 5;
}

.loading-overlay.active {
	opacity: 0.8;
	pointer-events: auto;
}

.loading-spinner {
	width: 32px;
	height: 32px;
	border: 3px solid var(--border-color);
	border-top-color: var(--accent);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
}

@keyframes spin {
	to { transform: rotate(360deg); }
}

/* Error Message */
.error-msg {
	text-align: center;
	padding: 3rem 1rem;
	color: var(--fg-secondary);
	font-size: 1rem;
}

/* Noscript */
.noscript-message {
	background: var(--bg-card);
	border-radius: var(--radius);
	padding: 2rem;
	text-align: center;
	border: 1px solid var(--border-color);
	color: var(--fg-secondary);
}

/* Responsive */
@media (max-width: 900px) {
	.stats-cards {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 640px) {
	.dashboard {
		padding: 0.75rem;
	}

	.controls-bar {
		flex-direction: column;
		align-items: stretch;
	}

	.controls-bar select,
	.controls-bar input[type="number"] {
		width: 100%;
		min-width: unset;
	}

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

	.dashboard-header {
		padding: 0.75rem 1rem;
	}

	.header-title h1 {
		font-size: 1.25rem;
	}

	.chart-card {
		padding: 1rem;
	}
}

/* Print */
@media print {
	body {
		background: white;
		color: black;
	}

	.dashboard-header,
	.controls-bar {
		box-shadow: none;
	}

	.theme-toggle {
		display: none;
	}

	.chart-card {
		box-shadow: none;
		border: 1px solid #ccc;
	}
}