/* ===================================
   Bunt.Haus Cost Calculator Styles
   Matching the Bunt.Haus aesthetic
   =================================== */

/* CSS Variables - Bunt.Haus Color Palette */
:root {
	/* Colors */
	--color-stone-50: #fafaf9;
	--color-stone-100: #f5f5f4;
	--color-stone-200: #e7e5e4;
	--color-stone-300: #d6d3d1;
	--color-stone-400: #a8a29e;
	--color-stone-500: #78716c;
	--color-stone-600: #57534e;
	--color-stone-700: #44403c;
	--color-stone-800: #292524;
	--color-stone-900: #1c1917;

	--color-amber-500: #f59e0b;
	--color-amber-600: #d97706;
	--color-amber-700: #b45309;

	--color-green-500: #22c55e;
	--color-yellow-500: #eab308;

	/* Service Colors */
	--color-scouting: #d97706;
	--color-crawling: #f59e0b;
	--color-processing: #78716c;
	--color-notifying: #22c55e;
	--color-infrastructure: #3b82f6;

	/* Individual Service Colors */
	--color-cloudflare: #f97316;
	--color-restate: #8b5cf6;
	--color-supabase: #10b981;
	--color-firecrawl: #ef4444;
	--color-gemini: #6366f1;
	--color-notifications: #ec4899;

	/* Semantic Colors */
	--color-bg: #ffffff;
	--color-bg-secondary: var(--color-stone-50);
	--color-text-primary: var(--color-stone-900);
	--color-text-secondary: var(--color-stone-500);
	--color-border: var(--color-stone-200);
	--color-accent: var(--color-amber-600);

	/* Spacing */
	--spacing-xs: 0.25rem;
	--spacing-sm: 0.5rem;
	--spacing-md: 1rem;
	--spacing-lg: 1.5rem;
	--spacing-xl: 2rem;
	--spacing-2xl: 3rem;

	/* Profit Colors */
	--color-profit-positive: #22c55e;
	--color-profit-negative: #ef4444;

	/* Border Radius */
	--radius-sm: 0.375rem;
	--radius-md: 0.5rem;
	--radius-lg: 0.75rem;

	/* Shadows */
	--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
	--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

	/* Transitions */
	--transition-fast: 0.15s ease;
	--transition-base: 0.2s ease;
	--transition-slow: 0.3s ease;
}

/* Dark Mode Variables */
@media (prefers-color-scheme: dark) {
	:root {
		--color-bg: var(--color-stone-900);
		--color-bg-secondary: var(--color-stone-800);
		--color-text-primary: var(--color-stone-50);
		--color-text-secondary: var(--color-stone-400);
		--color-border: var(--color-stone-700);
		--color-accent: var(--color-amber-500);
	}
}

/* ===================================
   Reset & Base Styles
   =================================== */

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
	background: linear-gradient(to bottom, var(--color-bg-secondary), var(--color-bg));
	color: var(--color-text-primary);
	line-height: 1.6;
	font-size: 16px;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	min-height: 100vh;
	padding: var(--spacing-lg);
}

/* ===================================
   Layout
   =================================== */

.container {
	max-width: 1400px;
	margin: 0 auto;
	animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(10px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* ===================================
   Header
   =================================== */

.header {
	text-align: center;
	margin-bottom: var(--spacing-2xl);
	padding: var(--spacing-xl) var(--spacing-md);
}

.title {
	font-size: 3rem;
	font-weight: 300;
	color: var(--color-stone-400);
	margin-bottom: var(--spacing-sm);
	letter-spacing: -0.02em;
}

.title-dot {
	color: var(--color-accent);
}

.subtitle {
	font-size: 1.5rem;
	font-weight: 300;
	color: var(--color-text-secondary);
	margin-bottom: var(--spacing-md);
}

.description {
	font-size: 1rem;
	color: var(--color-text-secondary);
	max-width: 600px;
	margin: 0 auto;
	line-height: 1.7;
}

/* ===================================
   Main Calculator Grid
   =================================== */

.calculator {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--spacing-xl);
	margin-bottom: var(--spacing-2xl);
}

@media (max-width: 1024px) {
	.calculator {
		grid-template-columns: 1fr;
	}
}

.section-title {
	font-size: 1.5rem;
	font-weight: 300;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-lg);
	padding-bottom: var(--spacing-sm);
	border-bottom: 1px solid var(--color-border);
}

/* ===================================
   Input Panel
   =================================== */

.inputs-panel {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: var(--spacing-xl);
	box-shadow: var(--shadow-sm);
	transition: box-shadow var(--transition-base);
}

.inputs-panel:hover {
	box-shadow: var(--shadow-md);
}

.input-group {
	margin-bottom: var(--spacing-lg);
}

.input-group:last-child {
	margin-bottom: 0;
}

.input-label {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 0.875rem;
	font-weight: 500;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-sm);
}

.input-value {
	font-weight: 600;
	color: var(--color-accent);
	font-size: 1rem;
}

.input-hint {
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	font-weight: 400;
}

/* ===================================
   Slider
   =================================== */

.slider {
	width: 100%;
	height: 6px;
	border-radius: 3px;
	background: linear-gradient(to right, var(--color-stone-200) 0%, var(--color-stone-200) 100%);
	outline: none;
	-webkit-appearance: none;
	appearance: none;
	position: relative;
	cursor: pointer;
	margin-bottom: var(--spacing-sm);
}

.slider::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--color-accent);
	cursor: pointer;
	border: 3px solid var(--color-bg);
	box-shadow: var(--shadow-md);
	transition: all var(--transition-base);
}

.slider::-webkit-slider-thumb:hover {
	transform: scale(1.1);
	box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.2);
}

.slider::-moz-range-thumb {
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--color-accent);
	cursor: pointer;
	border: 3px solid var(--color-bg);
	box-shadow: var(--shadow-md);
	transition: all var(--transition-base);
}

.slider::-moz-range-thumb:hover {
	transform: scale(1.1);
	box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.2);
}

.slider-labels {
	display: flex;
	justify-content: space-between;
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	padding: 0 var(--spacing-xs);
}

/* ===================================
   Select Dropdown
   =================================== */

.select {
	width: 100%;
	padding: var(--spacing-sm) var(--spacing-md);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	background: var(--color-bg);
	color: var(--color-text-primary);
	font-size: 0.875rem;
	cursor: pointer;
	transition: all var(--transition-base);
	outline: none;
}

.select:hover {
	border-color: var(--color-stone-400);
}

.select:focus {
	border-color: var(--color-accent);
	box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

/* ===================================
   Checkbox Group
   =================================== */

.checkbox-group {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
}

.checkbox-label {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm);
	border-radius: var(--radius-sm);
	cursor: pointer;
	transition: background var(--transition-fast);
	user-select: none;
}

.checkbox-label:hover {
	background: var(--color-stone-100);
}

.checkbox {
	width: 18px;
	height: 18px;
	cursor: pointer;
	accent-color: var(--color-accent);
}

.checkbox-label span {
	font-size: 0.875rem;
	color: var(--color-text-primary);
}

/* ===================================
   Radio Group
   =================================== */

.radio-group {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
}

.radio-label {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm);
	border-radius: var(--radius-sm);
	cursor: pointer;
	transition: background var(--transition-fast);
	user-select: none;
}

.radio-label:hover {
	background: var(--color-stone-100);
}

.radio {
	width: 18px;
	height: 18px;
	cursor: pointer;
	accent-color: var(--color-accent);
}

.radio-label span {
	font-size: 0.875rem;
	color: var(--color-text-primary);
}

/* Input hint text */
.input-hint-text {
	margin-top: var(--spacing-xs);
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	font-style: italic;
}

/* ===================================
   Advanced Settings
   =================================== */

.advanced-settings {
	margin-top: var(--spacing-lg);
	padding: var(--spacing-md);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	background: var(--color-bg-secondary);
}

.advanced-summary {
	cursor: pointer;
	font-weight: 600;
	color: var(--color-text-primary);
	user-select: none;
	padding: var(--spacing-xs);
	list-style: none;
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

.advanced-summary::before {
	content: '▶';
	display: inline-block;
	transition: transform var(--transition-fast);
	font-size: 0.75rem;
}

.advanced-settings[open] .advanced-summary::before {
	transform: rotate(90deg);
}

.advanced-summary:hover {
	color: var(--color-accent);
}

.advanced-content {
	margin-top: var(--spacing-md);
	padding-top: var(--spacing-md);
	border-top: 1px solid var(--color-border);
}

/* ===================================
   Badges
   =================================== */

.badge {
	display: inline-block;
	padding: var(--spacing-xs) var(--spacing-sm);
	border-radius: var(--radius-sm);
	font-size: 0.75rem;
	font-weight: 600;
	margin-left: var(--spacing-sm);
}

.badge-success {
	background: rgba(34, 197, 94, 0.1);
	color: var(--color-green-500);
}

.badge-warning {
	background: rgba(234, 179, 8, 0.1);
	color: var(--color-yellow-500);
}

/* ===================================
   New: Cost Badges & Warnings
   =================================== */

.cost-badge {
	display: inline-block;
	padding: 2px 6px;
	border-radius: var(--radius-sm);
	font-size: 0.65rem;
	font-weight: 600;
	margin-left: var(--spacing-sm);
	text-transform: uppercase;
	letter-spacing: 0.03em;
}

.cost-badge-free {
	background: rgba(34, 197, 94, 0.1);
	color: var(--color-green-500);
}

.cost-badge-paid {
	background: rgba(139, 92, 246, 0.1);
	color: #8b5cf6;
}

.cost-badge-tier {
	background: rgba(249, 115, 22, 0.1);
	color: #f97316;
}

.warning-callout {
	padding: var(--spacing-md);
	margin-bottom: var(--spacing-lg);
	border-radius: var(--radius-md);
	font-size: 0.8rem;
	line-height: 1.5;
	background: rgba(234, 179, 8, 0.08);
	border: 1px solid rgba(234, 179, 8, 0.3);
	color: var(--color-text-primary);
}

.warning-exceeded {
	background: rgba(239, 68, 68, 0.08);
	border-color: rgba(239, 68, 68, 0.3);
}

.cost-items-free {
	border-bottom: none;
	padding-bottom: 0;
	margin-bottom: var(--spacing-md);
}

.cost-items-heading {
	font-size: 0.7rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--color-text-secondary);
	margin-bottom: var(--spacing-sm);
	font-weight: 600;
}

.cost-item-muted {
	opacity: 0.6;
}

.cost-item-muted:hover {
	opacity: 1;
}

.cost-item-detail {
	padding-left: 2rem;
	padding-top: 0;
	margin-top: -4px;
}

.cost-detail {
	font-size: 0.7rem;
	color: var(--color-text-secondary);
	font-variant-numeric: tabular-nums;
}

.input-divider {
	border: none;
	border-top: 1px solid var(--color-border);
	margin: var(--spacing-lg) 0;
}

.section-subtitle {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text-secondary);
	margin-bottom: var(--spacing-xs);
}

/* ===================================
   Results Panel
   =================================== */

.results-panel {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: var(--spacing-xl);
	box-shadow: var(--shadow-sm);
	transition: box-shadow var(--transition-base);
}

.results-panel:hover {
	box-shadow: var(--shadow-md);
}

/* ===================================
   Process Flow Visualization
   =================================== */

.process-flow {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--spacing-xl);
	padding: var(--spacing-lg);
	background: linear-gradient(135deg, var(--color-stone-100), var(--color-bg-secondary));
	border-radius: var(--radius-lg);
	border: 1px solid var(--color-border);
	overflow-x: auto;
}

.flow-stage {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--spacing-sm);
	min-width: 80px;
	padding: var(--spacing-sm);
	transition: transform var(--transition-base);
}

.flow-stage:hover {
	transform: translateY(-2px);
}

.flow-icon {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.25rem;
	font-weight: 700;
	color: white;
	line-height: 1;
}

.flow-stage[data-stage="scouting"] .flow-icon {
	background: var(--color-scouting);
}

.flow-stage[data-stage="crawling"] .flow-icon {
	background: var(--color-crawling);
}

.flow-stage[data-stage="processing"] .flow-icon {
	background: var(--color-processing);
}

.flow-stage[data-stage="notifying"] .flow-icon {
	background: var(--color-notifying);
}

.flow-label {
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--color-text-secondary);
	text-align: center;
}

.flow-cost {
	font-size: 1rem;
	font-weight: 600;
	color: var(--color-accent);
	font-variant-numeric: tabular-nums;
}

.flow-volume {
	font-size: 0.65rem;
	color: var(--color-text-secondary);
	font-weight: 400;
	margin-top: 2px;
	opacity: 0.7;
}

.flow-arrow {
	font-size: 1.5rem;
	color: var(--color-stone-400);
	padding: 0 var(--spacing-xs);
	user-select: none;
}

/* Infrastructure Costs */
.infrastructure-costs {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-md);
	margin-bottom: var(--spacing-xl);
	background: linear-gradient(135deg, var(--color-amber-600), var(--color-amber-500));
	border-radius: var(--radius-md);
	color: white;
}

.infra-label {
	font-size: 0.875rem;
	font-weight: 600;
}

.infra-cost {
	font-size: 1.25rem;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}

/* ===================================
   Profit Calculator
   =================================== */

.profit-panel {
	background: linear-gradient(135deg, var(--color-stone-100), var(--color-bg-secondary));
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	padding: var(--spacing-lg);
	margin-bottom: var(--spacing-xl);
}

.profit-title {
	font-size: 1rem;
	font-weight: 600;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-md);
	padding-bottom: var(--spacing-sm);
	border-bottom: 1px solid var(--color-border);
}

.profit-input-group {
	margin-bottom: var(--spacing-lg);
}

.profit-label {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 0.875rem;
	font-weight: 500;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-sm);
}

.profit-input-value {
	font-weight: 600;
	color: var(--color-accent);
	font-size: 1rem;
}

.profit-slider {
	margin-bottom: var(--spacing-sm);
}

.profit-metrics {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: var(--spacing-md);
}

.profit-metric {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
	padding: var(--spacing-md);
	background: var(--color-bg);
	border-radius: var(--radius-sm);
	border: 1px solid var(--color-border);
}

.profit-metric-label {
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	font-weight: 500;
}

.profit-metric-value {
	font-size: 1.25rem;
	font-weight: 600;
	color: var(--color-text-primary);
	font-variant-numeric: tabular-nums;
}

.profit-highlight {
	grid-column: 1 / -1;
	background: linear-gradient(135deg, var(--color-amber-600), var(--color-amber-500));
	border-color: var(--color-amber-700);
	position: relative;
}

.profit-highlight .profit-metric-label,
.profit-highlight .profit-metric-value {
	color: white;
}

.profit-highlight .profit-metric-value {
	font-size: 1.5rem;
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

/* Profit indicator dot */
.profit-highlight .profit-metric-value::before {
	content: '';
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: white;
	display: inline-block;
	flex-shrink: 0;
}

.profit-highlight .profit-metric-value.profit-positive::before {
	background: var(--color-profit-positive);
	box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
}

.profit-highlight .profit-metric-value.profit-negative::before {
	background: var(--color-profit-negative);
	box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}

/* ===================================
   Metrics Panel
   =================================== */

.metrics-panel {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-xl);
	padding: var(--spacing-lg);
	background: var(--color-bg-secondary);
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
}

.metric-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--spacing-xs);
	text-align: center;
}

.metric-label {
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	font-weight: 500;
}

.metric-value {
	font-size: 1.5rem;
	font-weight: 300;
	color: var(--color-text-primary);
	font-variant-numeric: tabular-nums;
}

/* ===================================
   Chart Container
   =================================== */

.chart-container {
	display: flex;
	justify-content: center;
	align-items: center;
	margin-bottom: var(--spacing-xl);
	padding: var(--spacing-lg);
	background: var(--color-bg-secondary);
	border-radius: var(--radius-md);
	min-height: 250px;
}

#costChart {
	max-width: 250px;
	max-height: 250px;
	height: auto !important;
}

/* ===================================
   Cost Items
   =================================== */

.cost-items {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
	margin-bottom: var(--spacing-xl);
	padding-bottom: var(--spacing-lg);
	border-bottom: 1px solid var(--color-border);
}

.cost-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-sm);
	border-radius: var(--radius-sm);
	transition: background var(--transition-fast);
}

.cost-item:hover {
	background: var(--color-stone-100);
}

.cost-label {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	font-size: 0.875rem;
	color: var(--color-text-primary);
}

.cost-dot {
	width: 12px;
	height: 12px;
	border-radius: 50%;
	flex-shrink: 0;
}

.cost-value {
	font-weight: 600;
	font-size: 0.875rem;
	color: var(--color-text-primary);
	font-variant-numeric: tabular-nums;
}

/* ===================================
   Totals
   =================================== */

.totals {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-xl);
}

.total-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-md);
	border-radius: var(--radius-md);
	background: var(--color-stone-100);
}

.total-primary {
	background: linear-gradient(135deg, var(--color-amber-600), var(--color-amber-500));
	color: white;
}

.total-primary .total-label,
.total-primary .total-value {
	color: white;
}

.total-label {
	font-size: 0.875rem;
	font-weight: 500;
	color: var(--color-text-secondary);
}

.total-value {
	font-size: 1.5rem;
	font-weight: 300;
	color: var(--color-text-primary);
	font-variant-numeric: tabular-nums;
}

.total-primary .total-value {
	font-weight: 600;
}

/* ===================================
   Note
   =================================== */

.note {
	background: var(--color-stone-100);
	border-left: 3px solid var(--color-accent);
	border-radius: var(--radius-sm);
	padding: var(--spacing-md);
}

.note-title {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-sm);
}

.note-list {
	list-style: none;
	padding-left: 0;
}

.note-list li {
	font-size: 0.75rem;
	color: var(--color-text-secondary);
	line-height: 1.6;
	padding-left: var(--spacing-md);
	position: relative;
	margin-bottom: var(--spacing-xs);
}

.note-list li::before {
	content: '•';
	color: var(--color-accent);
	font-weight: bold;
	position: absolute;
	left: 0;
}

/* ===================================
   Server Diagram
   =================================== */

.server-diagram {
	margin-top: var(--spacing-lg);
	background: var(--color-stone-100);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	padding: var(--spacing-md);
}

.server-box {
	font-family: 'JetBrains Mono', 'Fira Code', monospace;
	font-size: 0.7rem;
}

.server-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: var(--spacing-md);
	padding-bottom: var(--spacing-sm);
	border-bottom: 1px solid var(--color-border);
}

.server-title {
	font-weight: 700;
	font-size: 0.8rem;
	color: var(--color-text-primary);
}

.server-specs {
	font-size: 0.7rem;
	color: var(--color-text-secondary);
}

.server-groups {
	display: flex;
	gap: var(--spacing-lg);
	flex-wrap: wrap;
	margin-bottom: var(--spacing-md);
}

.server-group {
	flex: 1;
	min-width: 120px;
}

.server-group-label {
	font-size: 0.65rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--color-text-secondary);
	margin-bottom: var(--spacing-sm);
}

.server-services {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
}

.server-service {
	display: flex;
	flex-direction: column;
	align-items: center;
	background: white;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	padding: 4px 8px;
	min-width: 60px;
}

.service-name {
	font-weight: 600;
	font-size: 0.65rem;
	color: var(--color-text-primary);
}

.service-port {
	font-size: 0.6rem;
	color: var(--color-text-secondary);
	opacity: 0.7;
}

.server-ram {
	border-top: 1px solid var(--color-border);
	padding-top: var(--spacing-sm);
}

.ram-label {
	display: flex;
	justify-content: space-between;
	font-size: 0.7rem;
	color: var(--color-text-secondary);
	margin-bottom: 4px;
}

.ram-bar-track {
	width: 100%;
	height: 6px;
	background: var(--color-stone-200);
	border-radius: 3px;
	overflow: hidden;
}

.ram-bar-fill {
	height: 100%;
	border-radius: 3px;
	transition: width 0.3s ease, background 0.3s ease;
}

/* ===================================
   VPS Recommendation
   =================================== */

.vps-recommendation {
	font-size: 0.7rem;
	color: var(--color-text-secondary);
	margin-top: 4px;
	padding: 2px 0;
}

.vps-rec-mismatch {
	color: var(--color-yellow-500);
	font-weight: 500;
}

/* ===================================
   Toggle Labels
   =================================== */

.toggle-label {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	cursor: pointer;
	font-size: 0.875rem;
	color: var(--color-text-primary);
}

.toggle-label input[type="checkbox"] {
	width: 16px;
	height: 16px;
	accent-color: var(--color-accent);
	cursor: pointer;
}

.toggle-label .input-hint {
	margin-left: auto;
	font-size: 0.7rem;
	color: var(--color-text-secondary);
}

/* ===================================
   Badge Default
   =================================== */

.badge-default {
	background: rgba(99, 102, 241, 0.1);
	color: #6366f1;
}

/* ===================================
   Footer
   =================================== */

.footer {
	text-align: center;
	padding: var(--spacing-xl) var(--spacing-md);
	color: var(--color-text-secondary);
	font-size: 0.875rem;
}

.footer p {
	margin-bottom: var(--spacing-xs);
}

.footer strong {
	color: var(--color-accent);
	font-weight: 600;
}

.footer-note {
	font-size: 0.75rem;
	opacity: 0.7;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
	body {
		padding: var(--spacing-md);
	}

	.title {
		font-size: 2rem;
	}

	.subtitle {
		font-size: 1.25rem;
	}

	.inputs-panel,
	.results-panel {
		padding: var(--spacing-lg);
	}

	.chart-container {
		padding: var(--spacing-sm);
	}

	.total-value {
		font-size: 1.25rem;
	}

	.process-flow {
		flex-wrap: wrap;
		justify-content: center;
	}

	.flow-arrow {
		display: none;
	}

	.flow-stage {
		min-width: 70px;
	}

	.metrics-panel {
		grid-template-columns: 1fr;
	}

	.profit-metrics {
		grid-template-columns: 1fr;
	}

	.profit-highlight {
		grid-column: 1;
	}
}

@media (max-width: 480px) {
	.slider-labels {
		font-size: 0.65rem;
	}

	.cost-label,
	.cost-value {
		font-size: 0.75rem;
	}

	.total-label {
		font-size: 0.75rem;
	}

	.total-value {
		font-size: 1rem;
	}
}

/* ===================================
   Dark Mode Enhancements
   =================================== */

@media (prefers-color-scheme: dark) {
	.inputs-panel,
	.results-panel {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.chart-container {
		background: var(--color-stone-900);
	}

	.cost-item:hover,
	.checkbox-label:hover,
	.radio-label:hover {
		background: var(--color-stone-700);
	}

	.total-item {
		background: var(--color-stone-700);
	}

	.note {
		background: var(--color-stone-700);
	}

	.slider {
		background: linear-gradient(to right, var(--color-stone-700) 0%, var(--color-stone-700) 100%);
	}

	.process-flow {
		background: linear-gradient(135deg, var(--color-stone-800), var(--color-stone-900));
		border-color: var(--color-stone-700);
	}

	.metrics-panel {
		background: var(--color-stone-900);
		border-color: var(--color-stone-700);
	}

	.server-diagram {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.server-service {
		background: var(--color-stone-700);
		border-color: var(--color-stone-600);
	}

	.ram-bar-track {
		background: var(--color-stone-700);
	}
}

/* ===================================
   Tab Navigation
   =================================== */

.tab-nav {
	display: flex;
	gap: 0;
	margin-bottom: var(--spacing-xl);
	border-bottom: 2px solid var(--color-border);
}

.tab-btn {
	padding: var(--spacing-md) var(--spacing-xl);
	background: none;
	border: none;
	border-bottom: 3px solid transparent;
	margin-bottom: -2px;
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--color-text-secondary);
	cursor: pointer;
	transition: all var(--transition-base);
	letter-spacing: 0.01em;
}

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

.tab-btn.active {
	color: var(--color-accent);
	border-bottom-color: var(--color-accent);
	font-weight: 600;
}

/* Currency Toggle */
.currency-toggle {
	display: flex;
	align-items: center;
	margin-left: auto;
	gap: 0;
	background: var(--color-stone-100);
	border-radius: 999px;
	padding: 2px;
	border: 1px solid var(--color-border);
	align-self: center;
}

.currency-btn {
	padding: 4px 14px;
	border: none;
	border-radius: 999px;
	background: transparent;
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--color-text-secondary);
	cursor: pointer;
	transition: all var(--transition-fast);
	letter-spacing: 0.04em;
	line-height: 1.4;
}

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

.currency-btn.active {
	background: var(--color-accent);
	color: white;
	box-shadow: var(--shadow-sm);
}

.tab-content {
	display: none;
}

.tab-content.active {
	display: block;
}

/* ===================================
   Tech Sync Note
   =================================== */

.tech-sync-note {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-sm) var(--spacing-md);
	background: rgba(217, 119, 6, 0.08);
	border: 1px solid rgba(217, 119, 6, 0.2);
	border-radius: var(--radius-md);
	margin-bottom: var(--spacing-lg);
	font-size: 0.8rem;
	color: var(--color-text-secondary);
}

.tech-sync-value {
	font-weight: 700;
	color: var(--color-accent);
	font-size: 0.875rem;
}

/* ===================================
   Number Input Row
   =================================== */

.number-input-row {
	display: flex;
	align-items: center;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	overflow: hidden;
	background: var(--color-bg);
	transition: border-color var(--transition-base);
}

.number-input-row:focus-within {
	border-color: var(--color-accent);
	box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.number-prefix {
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-stone-100);
	color: var(--color-text-secondary);
	font-weight: 600;
	font-size: 0.875rem;
	border-right: 1px solid var(--color-border);
	user-select: none;
}

.number-input {
	flex: 1;
	padding: var(--spacing-sm) var(--spacing-md);
	border: none;
	background: transparent;
	color: var(--color-text-primary);
	font-size: 0.875rem;
	outline: none;
	width: 100%;
}

/* ===================================
   Operational Costs List
   =================================== */

.op-costs-list {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-sm);
	padding: var(--spacing-md);
	background: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
}

.op-cost-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: var(--spacing-md);
}

.op-cost-label {
	font-size: 0.8rem;
	color: var(--color-text-secondary);
	flex: 1;
	min-width: 0;
}

.op-cost-row .number-input-row {
	width: 130px;
	flex-shrink: 0;
}

.op-cost-total {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding-top: var(--spacing-sm);
	border-top: 1px solid var(--color-border);
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text-primary);
}

/* ===================================
   Unit Economics Cards
   =================================== */

.unit-economics {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: var(--spacing-md);
	margin-bottom: var(--spacing-xl);
}

.econ-card {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: var(--spacing-lg);
	background: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	transition: box-shadow var(--transition-base);
}

.econ-card:hover {
	box-shadow: var(--shadow-md);
}

.econ-label {
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-text-secondary);
}

.econ-value {
	font-size: 1.75rem;
	font-weight: 300;
	color: var(--color-text-primary);
	font-variant-numeric: tabular-nums;
	line-height: 1.1;
}

.econ-sub {
	font-size: 0.7rem;
	color: var(--color-text-secondary);
}

.econ-highlight {
	background: linear-gradient(135deg, var(--color-amber-600), var(--color-amber-500));
	border-color: var(--color-amber-700);
}

.econ-highlight .econ-label,
.econ-highlight .econ-value,
.econ-highlight .econ-sub {
	color: white;
}

.econ-card-warn {
	border-color: #ef4444;
	background: rgba(239, 68, 68, 0.05);
}

.econ-card-warn .econ-value {
	color: #ef4444;
}

.econ-card-good {
	border-color: #22c55e;
	background: rgba(34, 197, 94, 0.05);
}

.econ-card-good .econ-value {
	color: #22c55e;
}

/* ===================================
   Cost Breakdown Table
   =================================== */

.cost-breakdown {
	margin-bottom: var(--spacing-xl);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	overflow: hidden;
}

.cost-breakdown-title {
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-text-secondary);
	padding: var(--spacing-md) var(--spacing-lg);
	background: var(--color-bg-secondary);
	border-bottom: 1px solid var(--color-border);
}

.cost-breakdown-row {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm) var(--spacing-lg);
	border-bottom: 1px solid var(--color-border);
	font-size: 0.875rem;
	color: var(--color-text-primary);
	transition: background var(--transition-fast);
}

.cost-breakdown-row:hover {
	background: var(--color-stone-100);
}

.cost-breakdown-row:last-of-type {
	border-bottom: none;
}

.cost-breakdown-row span:last-child {
	margin-left: auto;
	font-variant-numeric: tabular-nums;
	font-weight: 500;
}

.cost-breakdown-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	flex-shrink: 0;
}

.cost-breakdown-total {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-md) var(--spacing-lg);
	background: linear-gradient(135deg, var(--color-amber-600), var(--color-amber-500));
	font-size: 0.875rem;
	font-weight: 700;
	color: white;
}

/* ===================================
   Business Charts
   =================================== */

.biz-chart-wrap {
	margin-bottom: var(--spacing-xl);
	padding: var(--spacing-lg);
	background: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
}

.biz-chart-title {
	font-size: 0.8rem;
	font-weight: 600;
	color: var(--color-text-secondary);
	text-transform: uppercase;
	letter-spacing: 0.06em;
	margin-bottom: var(--spacing-md);
}

/* ===================================
   Dark Mode — Business Model
   =================================== */

@media (prefers-color-scheme: dark) {
	.tech-sync-note {
		background: rgba(245, 158, 11, 0.05);
	}

	.number-prefix {
		background: var(--color-stone-700);
		border-color: var(--color-stone-600);
	}

	.number-input {
		background: var(--color-stone-800);
	}

	.number-input-row {
		border-color: var(--color-stone-600);
		background: var(--color-stone-800);
	}

	.op-costs-list {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.econ-card {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.biz-chart-wrap {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.cost-breakdown {
		border-color: var(--color-stone-700);
	}

	.cost-breakdown-title {
		background: var(--color-stone-800);
		border-color: var(--color-stone-700);
	}

	.cost-breakdown-row {
		border-color: var(--color-stone-700);
	}

	.cost-breakdown-row:hover {
		background: var(--color-stone-700);
	}

	.tab-nav {
		border-color: var(--color-stone-700);
	}

	.currency-toggle {
		background: var(--color-stone-700);
		border-color: var(--color-stone-600);
	}
}

@media (max-width: 768px) {
	.tab-btn {
		padding: var(--spacing-sm) var(--spacing-md);
		font-size: 0.8rem;
	}

	.unit-economics {
		grid-template-columns: 1fr 1fr;
	}

	.op-cost-row {
		flex-direction: column;
		align-items: flex-start;
	}

	.op-cost-row .number-input-row {
		width: 100%;
	}
}