Oceanic

.btn-oceanic {
  display: inline-block;
  padding: 13px 28px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
  color: #ffffff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.2s ease, box-shadow 0.2s ease;
}
.btn-oceanic:hover {
  filter: brightness(1.1);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}
.btn-oceanic:active {
  filter: brightness(0.95);
}