header {
  height: 6.4rem;
  border-bottom: 1px solid var(--gray-700);
  background-color: var(--gray-900);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
}
.header-inner {
  padding: 0 2rem;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  width: 100%;
  height: 100%;
}

.header-inner h1 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--white);
}