header .logo,
header nav > a:first-child {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px 8px 10px;
  border-radius: 16px;
  background: linear-gradient(135deg, #002e1e, #056b37);
  box-shadow: 0 12px 28px rgba(0, 46, 30, 0.22);
}

header .logo img,
header nav > a:first-child img {
  display: block;
  width: auto;
  height: 34px;
  max-width: 180px;
  object-fit: contain;
}