.myelite-fav-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px; cursor: pointer;
  border: 1.5px solid #0b1e3f; background: #fff; color: #0b1e3f;
  font-weight: 700; font-size: 14px; transition: all .2s ease;
}
.myelite-fav-btn:hover { border-color: #f5821f; color: #f5821f; }
.myelite-fav-btn .myelite-fav-heart {
  width: 16px; height: 16px; display: inline-block;
  -webkit-mask: no-repeat center / contain; mask: no-repeat center / contain;
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 21s-7.5-4.6-10-9C.2 8.3 2 4.5 6 4.5c2 0 3.4 1.1 4 2.1.6-1 2-2.1 4-2.1 4 0 5.8 3.8 4 7.5-2.5 4.4-10 9-10 9z'/></svg>");
  mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 21s-7.5-4.6-10-9C.2 8.3 2 4.5 6 4.5c2 0 3.4 1.1 4 2.1.6-1 2-2.1 4-2.1 4 0 5.8 3.8 4 7.5-2.5 4.4-10 9-10 9z'/></svg>");
  background: currentColor;
}
.myelite-fav-btn.is-fav { background: #f5821f; border-color: #f5821f; color: #fff; }
.myelite-fav-btn.is-fav:hover { background: #e0730f; }
.myelite-fav-btn[disabled] { opacity: .6; cursor: default; }