:root {
  --bg: #05080f;
  --bg-card: #0d1117;
  --bg-card-hover: #161b22;
  --border: #1e2530;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --text-muted: #484f58;
  --accent: #22d3ee;
  --accent2: #38bdf8;
  --accent-glow: rgba(34, 211, 238, 0.15);
  --up: #3fb950;
  --down: #f85149;
  --neutral: #8b949e;
  --gradient-1: linear-gradient(135deg, #22d3ee 0%, #38bdf8 50%, #818cf8 100%);
}

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

body {
  font-family: 'Noto Sans HK', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.header {
  background: linear-gradient(180deg, #0a0f1a 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem 1rem;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--gradient-1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid rgba(63, 185, 80, 0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--up);
  font-family: 'JetBrains Mono', monospace;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--up);
  box-shadow: 0 0 8px var(--up);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.timestamp {
  text-align: right;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.nav {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem 2rem 0;
  max-width: 1400px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 0.6rem 1rem;
  border-radius: 8px 8px 0 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
  font-weight: 500;
}

.nav-item:hover, .nav-item.active {
  color: var(--accent);
  background: rgba(34, 211, 238, 0.05);
  border-bottom-color: var(--accent);
}

.nav-icon { font-size: 0.9rem; }

.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

.section { margin-bottom: 1.5rem; }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
}

.section-badge {
  background: var(--accent-glow);
  color: var(--accent);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

.refresh-btn {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  transition: all 0.2s;
}

.refresh-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.market-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.market-table th {
  text-align: left;
  padding: 0.7rem 1rem;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
}

.market-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}

.market-table tr:hover td {
  background: var(--bg-card-hover);
}

.market-table tr:last-child td {
  border-bottom: none;
}

.ticker-cell {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ticker-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  flex-shrink: 0;
}

.ticker-name {
  font-weight: 600;
  color: var(--text);
  font-size: 0.88rem;
}

.ticker-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.price {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}

.change {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
}

.change.up { color: var(--up); }
.change.down { color: var(--down); }

.change-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.change-pill.up {
  background: rgba(63, 185, 80, 0.1);
  color: var(--up);
}

.change-pill.down {
  background: rgba(248, 81, 73, 0.1);
  color: var(--down);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity 0.25s;
}

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.card-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.card-value {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text);
  margin: 0.25rem 0;
}

.card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1000px) {
  .two-col { grid-template-columns: 1fr; }
  .header-top { flex-direction: column; gap: 1rem; }
}

.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  max-width: 1400px;
  margin: 0 auto;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}