element-call/src/room/PTTButton.module.css

.pttButton {
  width: 100vw;
  aspect-ratio: 1;
  max-height: min(232px, calc(100vh - 16px));
  max-width: min(232px, calc(100vw - 16px));
  border-radius: 116px;
  color: var(--primary-content);
  border: 6px solid var(--accent);
  background-color: #21262c;
  position: relative;
  padding: 0;
  margin: 4px;
  cursor: pointer;
}

.micIcon {
  max-height: 50%;
}

.avatar {
  /* Remove explicit size to allow avatar to scale with the button */
  width: 100% !important;
  height: 100% !important;
}

.talking {
  background-color: var(--accent);
  cursor: unset;
}

.networkWaiting {
  background-color: var(--tertiary-content);
  border-color: var(--tertiary-content);
  cursor: unset;
}

.error {
  background-color: var(--alert);
  border-color: var(--alert);
}