a.btn[href^="mailto:"] {
  --mail-color: #003380;
  --mail-hover-color: #00265f;
  color: #fff !important;
  background-color: var(--mail-color) !important;
  border: 1px solid var(--mail-color) !important;
  font-weight: 500 !important;
  transition: background-color 150ms ease, border-color 150ms ease;
}
a.btn[href^="mailto:"][href$="@lgresearch.ai"] {
  --mail-color: #a50034;
  --mail-hover-color: #85002a;
}
a.btn[href^="mailto:"]:hover,
a.btn[href^="mailto:"]:active,
a.btn[href^="mailto:"]:focus-visible {
  color: #fff !important;
  background-color: var(--mail-hover-color) !important;
  border-color: var(--mail-hover-color) !important;
  font-weight: 500 !important;
}
a.btn[href^="mailto:"]:focus-visible {
  outline: 2px solid var(--mail-color);
  outline-offset: 3px;
  box-shadow: 0 0 0 3px #fff !important;
}