https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700&display=swap<link href="https://fontsdoctype.googleapis.com/css2?family=Orbitron:wght@500;700&display=swap" rel="stylesheet">
body {
  font-family: 'Orbitron', sans-serif;
  background-color: #0F1115;
  color: #1A1A1A;
}

.btn.primary {
  background-color: #F5C400;
  color: #0F1115;
  border-color: #F5C400;
}

a {
  color: #00C46F;
}

.card {
  background-color: #171923;
  border: 1px solid #2A2E3B;
}

.site-footer {
  border-top: 1px solid #2A2E3B;
  color: #C0C0C0;
}
<img src="assets/th-logo.png" alt="TH Laboratories logo" class="logo-img" />
.logo-img {
  height: 70px;
  margin-right: 1rem;
}
.btn.primary:hover {
  box-shadow: 0 0 10px #F5C400;
  transform: scale(1.05);
  transition: all 0.3s ease;
}

a:hover {
  text-decoration: underline;
  color: #00E07A;
}