.btn-primary {
  display: inline-block;
  background: var(--orange);
  color: var(--black);
  font-family: var(--font-body);
  font-weight: var(--fw-bold);
  font-size: var(--fs-h6);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 4px 24px rgba(252, 163, 17, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(252, 163, 17, 0.5);
  background: #ffb830;
}

.btn-primary:active {
  transform: translateY(0);
}

.buy-section .btn-primary {
  animation: btn-glow 2.5s ease-in-out infinite;
}

@keyframes btn-glow {
  0%, 100% { box-shadow: 0 4px 24px rgba(252, 163, 17, 0.35); }
  50%       { box-shadow: 0 4px 44px rgba(252, 163, 17, 0.65), 0 0 60px rgba(252, 163, 17, 0.15); }
}