/* ═══════════════════════════════════════════════
   RealStats FRED — Front-end  (v1.0.7)
   Premium / high-end treatment
   ═══════════════════════════════════════════════ */

:root {
	--rsf-text:    #0f172a;
	--rsf-muted:   #64748b;
	--rsf-light:   #94a3b8;
	--rsf-border:  #e2e8f0;
	--rsf-bg:      #ffffff;
	--rsf-bg-alt:  #f8fafc;
	--rsf-radius:  14px;
	--rsf-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
	--rsf-shadow:    0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
	--rsf-shadow-md: 0 4px 14px rgba(0,0,0,0.07);
	--rsf-shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
	--rsf-font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, sans-serif;
}

/* ── Chart section ─────────────────────────────── */

.rsf-chart-section {
	font-family: var(--rsf-font);
	max-width: 1060px;
	margin: 0 auto;
	padding: 0;
	color: var(--rsf-text);
}

/* Toggle pills */
.rsf-toggles-bar {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin-bottom: 1rem;
}

.rsf-tab {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.45rem 0.95rem;
	border: 2px solid var(--rsf-border);
	border-radius: 999px;
	background: var(--rsf-bg);
	font-family: var(--rsf-font);
	font-size: 0.8rem;
	font-weight: 500;
	color: var(--rsf-text);
	cursor: pointer;
	transition: all 0.18s ease;
	line-height: 1.3;
	white-space: nowrap;
	user-select: none;
	box-shadow: var(--rsf-shadow-sm);
}

.rsf-tab:hover:not(.disabled) {
	background: var(--rsf-bg-alt);
	box-shadow: var(--rsf-shadow);
}

.rsf-tab.active {
	font-weight: 600;
	box-shadow: var(--rsf-shadow-md);
}

.rsf-tab.disabled {
	opacity: 0.38;
	cursor: not-allowed;
	pointer-events: none;
}

.rsf-tab-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: var(--rsf-border);
	flex-shrink: 0;
	transition: all 0.18s ease;
}

.rsf-tab.active .rsf-tab-dot {
	box-shadow: 0 0 0 2.5px var(--rsf-bg), 0 0 0 4.5px currentColor;
}

/* Chart card */
.rsf-chart-box {
	position: relative;
	background: var(--rsf-bg);
	border: 1px solid var(--rsf-border);
	border-radius: var(--rsf-radius);
	box-shadow: var(--rsf-shadow);
	padding: 1.75rem 1.5rem 1.5rem;
	min-height: 420px;
	overflow: hidden;
}

.rsf-chart-canvas-wrap {
	position: relative;
	width: 100%;
	height: 420px;
}

.rsf-chart-canvas-wrap canvas {
	display: block;
	max-width: 100%;
}

.rsf-chart-placeholder {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	margin: 0;
	font-size: 0.95rem;
	color: var(--rsf-light);
	text-align: center;
	pointer-events: none;
}

/* ── Cards section ─────────────────────────────── */

.rsf-cards-section {
	font-family: var(--rsf-font);
	max-width: 1060px;
	margin: 0 auto;
	padding: 0;
	color: var(--rsf-text);
}

.rsf-cards-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-bottom: 1.25rem;
}

.rsf-cards-title {
	font-size: 1.15rem;
	font-weight: 700;
	margin: 0;
	letter-spacing: -0.01em;
}

.rsf-daterange {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.8rem;
	color: var(--rsf-muted);
}

.rsf-range-select {
	padding: 0.4rem 0.75rem;
	border: 1px solid var(--rsf-border);
	border-radius: 10px;
	background: var(--rsf-bg);
	font-family: var(--rsf-font);
	font-size: 0.8rem;
	font-weight: 500;
	color: var(--rsf-text);
	cursor: pointer;
	box-shadow: var(--rsf-shadow-sm);
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
	-webkit-appearance: none;
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 0.6rem center;
	padding-right: 2rem;
}

.rsf-range-select:focus {
	outline: none;
	border-color: #6366f1;
	box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

/* Cards grid */
.rsf-cards-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
	gap: 0.875rem;
}

.rsf-card {
	background: var(--rsf-bg);
	border: 1px solid var(--rsf-border);
	border-radius: var(--rsf-radius);
	box-shadow: var(--rsf-shadow);
	padding: 1.125rem 1.25rem 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
	transition: box-shadow 0.2s ease, transform 0.2s ease;
	position: relative;
	overflow: hidden;
}

.rsf-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: linear-gradient(90deg, #0d9488, #6366f1);
	opacity: 0;
	transition: opacity 0.2s ease;
}

.rsf-card:hover {
	box-shadow: var(--rsf-shadow-lg);
	transform: translateY(-2px);
}

.rsf-card:hover::before {
	opacity: 1;
}

.rsf-card-label {
	font-size: 0.7rem;
	font-weight: 600;
	color: var(--rsf-muted);
	text-transform: uppercase;
	letter-spacing: 0.06em;
	line-height: 1.3;
	margin: 0;
}

.rsf-card-value {
	font-size: 1.5rem;
	font-weight: 800;
	color: var(--rsf-text);
	line-height: 1.15;
	letter-spacing: -0.02em;
	margin: 0.2rem 0 0;
}

.rsf-card-unit {
	font-size: 0.65rem;
	font-weight: 500;
	color: var(--rsf-light);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin: 0;
}

.rsf-card-change {
	display: inline-flex;
	align-items: center;
	gap: 0.25rem;
	font-size: 0.8rem;
	font-weight: 700;
	margin-top: 0.35rem;
	color: var(--rsf-light);
	padding: 0.15rem 0.5rem;
	border-radius: 6px;
	width: fit-content;
}

.rsf-card-change.up {
	color: #059669;
	background: rgba(5,150,105,0.08);
}

.rsf-card-change.down {
	color: #dc2626;
	background: rgba(220,38,38,0.08);
}

.rsf-arrow {
	width: 14px;
	height: 14px;
	flex-shrink: 0;
}

/* ── Empty ─────────────────────────────────────── */

.rsf-empty {
	padding: 1.25rem;
	background: #fffbeb;
	border: 1px solid #fde68a;
	border-radius: var(--rsf-radius);
	color: #92400e;
	font-size: 0.9rem;
}

/* ── Responsive ────────────────────────────────── */

@media (max-width: 640px) {
	.rsf-toggles-bar { gap: 0.35rem; }
	.rsf-tab { padding: 0.35rem 0.7rem; font-size: 0.72rem; }
	.rsf-chart-canvas-wrap { height: 300px; }
	.rsf-chart-box { padding: 1rem; min-height: 320px; }
	.rsf-cards-grid { grid-template-columns: 1fr 1fr; }
	.rsf-cards-header { flex-direction: column; align-items: flex-start; }
	.rsf-card-value { font-size: 1.25rem; }
}

@media (max-width: 400px) {
	.rsf-cards-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
	.rsf-tab, .rsf-card, .rsf-tab-dot { transition: none; }
	.rsf-card:hover { transform: none; }
}