.header {
  width: 100%;
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  height: var(--header-height);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--Dark-500, #333);
  background: var(--Dark-700, #171717);
}