/* ═══════════════════════════════════════════════
   APEX ANALYTICS — PREMIUM DARK THEME
   Font: Syne (display) + DM Mono (data) + Instrument Serif (accent)
═══════════════════════════════════════════════ */

:root {
  --bg-base:      #080b10;
  --bg-card:      #0d1117;
  --bg-elevated:  #121820;
  --bg-hover:     #171f2a;
  --border:       rgba(255,255,255,0.06);
  --border-accent:rgba(255,255,255,0.12);

  --text-primary:   #eef0f3;
  --text-secondary: #8a9ab0;
  --text-muted:     #4a5568;
  --text-dim:       #2d3748;

  --accent-gold:   #c9a84c;
  --accent-gold-l: #e8c76a;
  --accent-teal:   #1de9b6;
  --accent-red:    #ef4444;
  --accent-green:  #22c55e;
  --accent-orange: #f97316;
  --accent-blue:   #3b82f6;

  --positive:  #22c55e;
  --negative:  #ef4444;
  --neutral:   #f97316;

  --chart-grid:   rgba(255,255,255,0.04);
  --chart-tick:   #4a5568;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --font-display: 'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --font-serif:   'Instrument Serif', serif;

  --shadow-card:  0 4px 40px rgba(0,0,0,0.5);
  --shadow-glow:  0 0 40px rgba(201,168,76,0.08);

  --transition:   0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── RESET ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-display);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
canvas { display: block; }
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(255,255,255,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-teal);
}

/* ─── NOISE OVERLAY ─────────────────────────── */
.noise-overlay {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}

/* ─── CONTAINER ─────────────────────────────── */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ─── NAVIGATION ────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
}
.nav.scrolled {
  background: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 48px;
}
.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.logo-mark {
  color: var(--accent-gold);
  font-size: 1rem;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}
.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
}
.nav-link {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-link:hover { color: var(--text-primary); }
.nav-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: 32px;
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--positive);
  box-shadow: 0 0 8px var(--positive);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.status-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--positive);
}

/* ─── HERO ──────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 40px 80px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}
.hero-bg-grid {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
}
.hero-content { max-width: 720px; }
.hero-eyebrow {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 100px;
  padding: 4px 14px;
  background: rgba(201,168,76,0.05);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.hero-title em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-gold-l);
  display: block;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 56px;
  line-height: 1.7;
  font-weight: 400;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  width: fit-content;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 32px;
}
.hero-stat-divider {
  width: 1px;
  height: 44px;
  background: var(--border);
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.scroll-line {
  width: 60px; height: 1px;
  background: linear-gradient(90deg, var(--text-muted), transparent);
  animation: scrollline 2s ease-in-out infinite;
}
@keyframes scrollline {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  50.01% { transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ─── SECTIONS ──────────────────────────────── */
.section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}
.section-header {
  margin-bottom: 56px;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
}

/* ─── FEAR & GREED ──────────────────────────── */
.fng-wrapper {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 40px;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-card);
}
.fng-gauge-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.fng-value-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: -24px;
}
.fng-number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--text-primary);
}
.fng-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 6px;
}
.fng-details {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.fng-history {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}
.fng-hist-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.fng-hist-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.fng-hist-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}
.fng-hist-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.fng-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.legend-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}
.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ─── MARKETS TABLE ─────────────────────────── */
.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.table-scroll {
  overflow-x: auto;
}
.market-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}
.market-table thead tr {
  border-bottom: 1px solid var(--border);
}
.market-table th {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  white-space: nowrap;
  background: var(--bg-elevated);
}
.market-table th.num { text-align: right; }
.market-table th.chart-col { text-align: center; }
.market-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: middle;
  white-space: nowrap;
}
.market-table tbody tr:last-child td { border-bottom: none; }
.market-table tbody tr {
  transition: background var(--transition);
}
.market-table tbody tr:hover { background: var(--bg-hover); }
td.num { text-align: right; font-family: var(--font-mono); font-size: 0.85rem; }
td.chart-col { text-align: center; width: 120px; }
.rank-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.asset-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}
.coin-icon {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-elevated);
  flex-shrink: 0;
  object-fit: contain;
}
.coin-icon-placeholder {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.asset-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}
.asset-symbol {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.change-positive { color: var(--positive); }
.change-negative { color: var(--negative); }
.price-val {
  font-family: var(--font-mono);
  color: var(--text-primary);
}
.mcap-val {
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.mini-chart-container {
  width: 100px;
  height: 40px;
  margin: 0 auto;
}
.mini-chart-container canvas { width: 100% !important; height: 100% !important; }

/* Skeleton loading */
.skeleton-row td { padding: 12px 20px; }
.skeleton {
  height: 40px;
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%);
  background-size: 400% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ─── CHART TABS ────────────────────────────── */
.chart-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.chart-tab {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 18px;
  transition: all var(--transition);
  white-space: nowrap;
}
.chart-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-accent);
  background: var(--bg-elevated);
}
.chart-tab.active {
  color: var(--bg-base);
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  font-weight: 500;
}

/* ─── CHART PANELS ──────────────────────────── */
.chart-panels { position: relative; }
.chart-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.3s ease-out;
}
.chart-panel.active { display: block; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.chart-info { margin-bottom: 32px; }
.chart-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.chart-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 800px;
}
.chart-desc strong { color: var(--accent-gold); font-weight: 600; }
.chart-box {
  position: relative;
  height: 420px;
  width: 100%;
}
.chart-box canvas {
  width: 100% !important;
  height: 100% !important;
}
.monthly-box {
  height: auto;
  overflow-x: auto;
}
.chart-source {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* ─── MONTHLY TABLE ─────────────────────────── */
#monthly-table-container {
  overflow-x: auto;
}
.monthly-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}
.monthly-table th, .monthly-table td {
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-align: center;
  border: 1px solid var(--border);
}
.monthly-table th {
  background: var(--bg-elevated);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  font-weight: 500;
}
.monthly-table .year-col {
  text-align: left;
  color: var(--text-secondary);
  font-weight: 500;
  background: var(--bg-elevated);
}
.monthly-table .avg-row td {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.68rem;
}
.monthly-table td.pos { color: var(--positive); }
.monthly-table td.neg { color: var(--negative); }
.monthly-table td.cell-pos {
  background: rgba(34, 197, 94, var(--intensity, 0.1));
  color: var(--positive);
}
.monthly-table td.cell-neg {
  background: rgba(239, 68, 68, var(--intensity, 0.1));
  color: var(--negative);
}

/* ─── FOOTER ────────────────────────────────── */
.footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.6;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* ─── RESPONSIVE ─────────────────────────────── */
@media (max-width: 1024px) {
  .fng-wrapper { grid-template-columns: 1fr; }
  .fng-gauge-container canvas { max-width: 320px; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .hero { padding: 100px 20px 60px; }
  .hero-stats {
    flex-direction: column;
    width: 100%;
  }
  .hero-stat-divider { width: 100%; height: 1px; }
  .hero-stat { width: 100%; }
  .nav-inner { padding: 0 20px; gap: 16px; }
  .nav-links { display: none; }
  .chart-tabs { gap: 6px; }
  .chart-tab { padding: 7px 13px; font-size: 0.65rem; }
  .chart-panel { padding: 24px 20px; }
  .chart-box { height: 300px; }
  .section { padding: 64px 0; }
  .fng-wrapper { padding: 28px 20px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2.8rem; }
}