/* ──────────────────────────────────────────────────────────────────────────
 * Macro Liquidity Terminal — design system
 * See README §9. Dark, utilitarian, Bloomberg-terminal-inspired.
 * ──────────────────────────────────────────────────────────────────────── */

:root {
  /* Background layers */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2233;
  --bg-surface: #1f2937;

  /* Text hierarchy */
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-accent: #f9fafb;

  /* Semantic colors */
  --color-easing: #22c55e;
  --color-tightening: #ef4444;
  --color-neutral: #6b7280;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;

  /* Tier accent colors */
  --tier-a: #3b82f6;
  --tier-b: #8b5cf6;
  --tier-c: #f59e0b;
  --tier-d: #ef4444;
  --tier-context: #6b7280;

  /* Regime band colors */
  --regime-loose: #22c55e;
  --regime-mildly-loose: #84cc16;
  --regime-mildly-tight: #f59e0b;
  --regime-tight: #ef4444;

  /* Borders & dividers */
  --border-subtle: #1f2937;
  --border-medium: #374151;

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;

  --card-radius: 8px;
  --card-padding: var(--space-lg);
}

/* ─── Reset ────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4 { color: var(--text-accent); font-weight: 600; margin: 0; }
h1 { font-size: var(--font-size-2xl); letter-spacing: -0.02em; }
h2 { font-size: var(--font-size-xl); letter-spacing: -0.01em; }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 500; }
p { margin: 0; }
a { color: var(--color-info); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; font-size: inherit; cursor: pointer; }

/* ─── Layout ───────────────────────────────────────────────────────────── */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.site-header {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}
.site-header .brand {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--text-accent);
  letter-spacing: -0.01em;
}
.site-header .brand .dot { color: var(--color-info); }
.site-header nav {
  display: flex;
  gap: var(--space-lg);
}
.site-header nav a {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
}
.site-header nav a:hover { color: var(--text-accent); }
.site-header nav a.active {
  color: var(--text-accent);
  border-bottom-color: var(--color-info);
}

.site-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}
.site-footer .container { display: flex; flex-wrap: wrap; gap: var(--space-lg); justify-content: space-between; }
.site-footer .footer-meta { display: flex; gap: var(--space-md); flex-wrap: wrap; }

main { padding: var(--space-xl) 0; }

/* ─── Hero / status ────────────────────────────────────────────────────── */

.hero {
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.hero .subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  max-width: 60ch;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-top: var(--space-sm);
}
.signal-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}
.signal-badge::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.signal-badge.regime-loose         { color: var(--regime-loose); }
.signal-badge.regime-mildly-loose  { color: var(--regime-mildly-loose); }
.signal-badge.regime-mildly-tight  { color: var(--regime-mildly-tight); }
.signal-badge.regime-tight         { color: var(--regime-tight); }

.trend-stat, .coverage-stat {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}
.trend-stat .value, .coverage-stat .value { color: var(--text-accent); font-weight: 500; }
.trend-stat .delta-up   { color: var(--color-tightening); }
.trend-stat .delta-down { color: var(--color-easing); }

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

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  transition: border-color 120ms ease, background-color 120ms ease;
}
.card:hover {
  border-color: var(--border-medium);
  background: var(--bg-tertiary);
}
.card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.card-title { font-size: var(--font-size-lg); font-weight: 600; color: var(--text-accent); }
.card-subtitle { font-size: var(--font-size-xs); color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ─── Grid layout ──────────────────────────────────────────────────────── */

.grid { display: grid; gap: var(--space-md); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.section { margin-bottom: var(--space-xl); }
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.section-header h2 { color: var(--text-accent); }
.section-header .meta { color: var(--text-muted); font-family: var(--font-mono); font-size: var(--font-size-sm); }

/* Hero row: gauge + takeaway side by side */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: var(--space-md);
  align-items: stretch;
}

/* ─── Score gauge ──────────────────────────────────────────────────────── */

.score-gauge-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
}
.score-gauge-card .gauge-wrapper {
  position: relative;
  width: 100%;
  max-width: 320px;
  aspect-ratio: 2 / 1;
}
.score-gauge-card .gauge-center {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}
.score-gauge-card .percentile-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-accent);
  line-height: 1;
}
.score-gauge-card .percentile-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-xs);
}
.score-gauge-card .regime-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-top: var(--space-sm);
}
.score-gauge-card .regime-name.regime-loose         { color: var(--regime-loose); }
.score-gauge-card .regime-name.regime-mildly-loose  { color: var(--regime-mildly-loose); }
.score-gauge-card .regime-name.regime-mildly-tight  { color: var(--regime-mildly-tight); }
.score-gauge-card .regime-name.regime-tight         { color: var(--regime-tight); }
.score-gauge-card .risk-bias { font-size: var(--font-size-sm); color: var(--text-secondary); }

/* Takeaway panel */
.takeaway-card { display: flex; flex-direction: column; gap: var(--space-md); }
.takeaway-card .takeaway-text { color: var(--text-primary); font-size: var(--font-size-base); line-height: 1.6; }
.takeaway-card .takeaway-highlights {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.takeaway-card .highlight {
  flex: 1 1 140px;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border-radius: 6px;
  border-left: 3px solid var(--border-medium);
}
.takeaway-card .highlight .label { font-size: var(--font-size-xs); color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.takeaway-card .highlight .value { font-family: var(--font-mono); font-weight: 500; font-size: var(--font-size-lg); color: var(--text-accent); }

/* ─── Indicator card ───────────────────────────────────────────────────── */

.indicator-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.indicator-card .ic-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}
.indicator-card .ic-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-accent);
}
.indicator-card .ic-tier {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 3px;
}
.indicator-card .ic-tier-A       { color: var(--tier-a); background: rgba(59,130,246,0.10); }
.indicator-card .ic-tier-B       { color: var(--tier-b); background: rgba(139,92,246,0.10); }
.indicator-card .ic-tier-C       { color: var(--tier-c); background: rgba(245,158,11,0.10); }
.indicator-card .ic-tier-D       { color: var(--tier-d); background: rgba(239,68,68,0.10); }
.indicator-card .ic-tier-context { color: var(--tier-context); background: rgba(107,114,128,0.10); }

.indicator-card .ic-value {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  color: var(--text-accent);
  line-height: 1.1;
}
.indicator-card .ic-unit { font-size: var(--font-size-base); color: var(--text-secondary); margin-left: var(--space-xs); }
.indicator-card .ic-change {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}
.indicator-card .ic-change.up   { color: var(--color-tightening); }
.indicator-card .ic-change.down { color: var(--color-easing); }
.indicator-card .ic-sparkline { height: 40px; margin: var(--space-xs) 0; }
.indicator-card .ic-meta {
  display: flex;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  align-items: center;
}
.indicator-card .ic-vol-badge {
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.indicator-card .ic-vol-low      { background: rgba(34,197,94,0.10); color: var(--color-easing); }
.indicator-card .ic-vol-normal   { background: rgba(107,114,128,0.10); color: var(--text-secondary); }
.indicator-card .ic-vol-elevated { background: rgba(245,158,11,0.10); color: var(--color-warning); }
.indicator-card .ic-vol-high     { background: rgba(239,68,68,0.10); color: var(--color-tightening); }

.indicator-card .ic-percentile-bar {
  flex: 1;
  height: 4px;
  background: var(--bg-surface);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.indicator-card .ic-percentile-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--regime-loose), var(--regime-mildly-loose), var(--regime-mildly-tight), var(--regime-tight));
  border-radius: 2px;
}
.indicator-card .ic-percentile-marker {
  position: absolute;
  top: -2px;
  width: 2px;
  height: 8px;
  background: var(--text-accent);
  border-radius: 1px;
}

/* ─── Liquidity map (heatmap bars per tier) ────────────────────────────── */

.liquidity-map { display: flex; flex-direction: column; gap: var(--space-sm); }
.liquidity-row {
  display: grid;
  grid-template-columns: 140px 1fr 90px;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}
.liquidity-row .tier-label {
  display: flex; align-items: center; gap: var(--space-xs);
  color: var(--text-secondary);
}
.liquidity-row .tier-dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.liquidity-row.tier-A .tier-dot { background: var(--tier-a); }
.liquidity-row.tier-B .tier-dot { background: var(--tier-b); }
.liquidity-row.tier-C .tier-dot { background: var(--tier-c); }
.liquidity-row.tier-D .tier-dot { background: var(--tier-d); }
.liquidity-row .heat-bar {
  position: relative;
  height: 14px;
  background: var(--bg-surface);
  border-radius: 3px;
  overflow: hidden;
}
.liquidity-row .heat-fill {
  height: 100%;
  border-radius: 3px;
}
.liquidity-row .heat-fill.easing      { background: linear-gradient(90deg, var(--color-easing) 0%, var(--regime-mildly-loose) 100%); }
.liquidity-row .heat-fill.neutral     { background: var(--text-muted); }
.liquidity-row .heat-fill.tightening  { background: linear-gradient(90deg, var(--regime-mildly-tight) 0%, var(--color-tightening) 100%); }
.liquidity-row .condition { text-align: right; color: var(--text-secondary); }
.liquidity-row .condition.tightening { color: var(--color-tightening); }
.liquidity-row .condition.easing { color: var(--color-easing); }

/* ─── Drivers ──────────────────────────────────────────────────────────── */

.drivers-list { display: flex; flex-direction: column; gap: var(--space-xs); }
.driver-row {
  display: grid;
  grid-template-columns: 160px 1fr 90px;
  gap: var(--space-md);
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  padding: var(--space-xs) 0;
}
.driver-row .driver-name { color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.driver-row .driver-bar {
  height: 8px;
  background: var(--bg-surface);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.driver-row .driver-fill { height: 100%; border-radius: 2px; }
.driver-row .driver-fill.tightening { background: var(--color-tightening); }
.driver-row .driver-fill.easing     { background: var(--color-easing); }
.driver-row .driver-fill.neutral    { background: var(--text-muted); }
.driver-row .driver-direction { text-align: right; }
.driver-row .driver-direction.tightening { color: var(--color-tightening); }
.driver-row .driver-direction.easing     { color: var(--color-easing); }
.driver-row .driver-direction.neutral    { color: var(--text-muted); }

/* ─── Asset Impact Lens (tabs) ─────────────────────────────────────────── */

.tabs {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}
.tabs button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs button:hover { color: var(--text-accent); }
.tabs button.active {
  color: var(--text-accent);
  border-bottom-color: var(--color-info);
}

.correlation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}
.correlation-block {
  background: var(--bg-tertiary);
  border-radius: 6px;
  padding: var(--space-md);
}
.correlation-block .block-title {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}
.correlation-block .stat-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  padding: 2px 0;
}
.correlation-block .stat-row .label { color: var(--text-secondary); }
.correlation-block .stat-row .value { color: var(--text-accent); font-weight: 500; }
.correlation-block .stat-row .value.positive { color: var(--color-easing); }
.correlation-block .stat-row .value.negative { color: var(--color-tightening); }

/* ─── Indicator detail page ────────────────────────────────────────────── */

.indicator-detail-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-md);
}
.chart-area { min-height: 400px; }
.chart-toolbar {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}
.chart-toolbar button {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  border-radius: 3px;
}
.chart-toolbar button.active {
  background: var(--bg-surface);
  color: var(--text-accent);
  border-color: var(--border-medium);
}
.stat-list { display: flex; flex-direction: column; gap: var(--space-md); }
.stat-list .stat {
  display: flex; flex-direction: column; gap: 2px;
}
.stat-list .stat .label { font-size: var(--font-size-xs); color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-list .stat .value { font-family: var(--font-mono); font-size: var(--font-size-lg); color: var(--text-accent); font-weight: 500; }

/* ─── Loading / error states ───────────────────────────────────────────── */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}
.error-banner {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-tightening);
  border-radius: 6px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}
.skeleton {
  display: inline-block;
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-tertiary) 50%, var(--bg-surface) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.4s ease-in-out infinite;
  border-radius: 3px;
  color: transparent;
}
@keyframes skeleton-pulse {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Utility ──────────────────────────────────────────────────────────── */

.mono { font-family: var(--font-mono); }
.muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--text-accent); }
.text-easing { color: var(--color-easing); }
.text-tightening { color: var(--color-tightening); }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

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

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-grid { grid-template-columns: 1fr; }
  .indicator-detail-grid { grid-template-columns: 1fr; }
  .correlation-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 var(--space-md); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .site-header .container { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .site-header nav { gap: var(--space-md); }
  .liquidity-row { grid-template-columns: 90px 1fr 80px; }
  .driver-row { grid-template-columns: 110px 1fr 80px; font-size: var(--font-size-xs); }
}