[data-theme="dark"] {
  --primary: #16307a;
  --primary-light: #1f3f96;
  --secondary: #22c7ea;
  --up: #2ee6ab;
  --down: #ff8585;
  --bg: #0d1321;
  --bg-card: #151d2e;
  --text: #e6ebf3;
  --text-muted: #8b98ad;
  --border: #263247;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .news-card,
[data-theme="dark"] .related-box,
[data-theme="dark"] .coin-card {
  background: #101828;
}

[data-theme="dark"] .sentiment-card {
  background: linear-gradient(135deg, #16307a, #0b1c4d);
}

[data-theme="dark"] .ticker {
  background: #0b1c4d;
}