header {
  position: sticky;
  top: 0;
  margin-top: 1.5rem;
  width: 100%;
  background-color: var(--color-blue-light);
  z-index: 100;
}

header nav {
  margin: 0 auto;
  padding: var(--padding) calc(var(--padding) * 2);
  display: flex;
  align-items: end;
  gap: calc(var(--padding) + 2vw);
  max-width: var(--main-width);
}

header nav a,
header nav .dropdown span {
  font-family: var(--font-headers);
  font-weight: bold;
  color: var(--color-text);
  text-decoration: none;
  text-align: center;
  transition: all 0.2s ease-out;
}

header nav a:hover,
header nav .dropdown span:hover {
  opacity: 0.8;
}

header nav .end {
  margin-left: auto;
}

header nav img {
  height: 3.25rem;
  display: inline-block;
}

@media only screen and (max-width: 50rem) {
  header nav img {
    height: 2.5rem;
  }
}

header nav img.white {
  display: none;
}

.header-inverted header nav img.black {
  display: none;
}

.header-inverted header nav img.white {
  display: inline-block;
}

@media only screen and (max-width: 45rem) {
  header nav a.button {
    padding: 0.75rem 1rem;
  }
}

#header-bar {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 1.5rem;
  background-color: var(--header-bar-color, var(--color-green-dark));
}

header nav .dropdown {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

header nav .dropdown span {
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

header nav .icon {
  width: 1rem;
  height: 1rem;
}

header nav .dropdown-content {
  display: none;
  position: absolute;
  padding: 1rem 1rem;
  z-index: 1;
  transform: translateX(-1rem);
  background-color: var(--color-blue-light);
  min-width: 16rem;
}

header nav .dropdown:hover .dropdown-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-radius: var(--padding);
}

header nav .dropdown:hover .dropdown-content a {
  display: flex;
  align-items: center;
  text-align: left;
  gap: 0.3rem;
}

header nav .dropdown:hover .dropdown-content a:hover {
  gap: 0.6rem;
}

header #mobile-nav {
  background-color: var(--color-blue-light);
  color: var(--color-text);
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: clamp(60vw, 20rem, 90vw);
  display: flex;
  flex-direction: column;
  padding: var(--padding);
  padding-right: calc(var(--padding) * 2);
  transform: translateX(calc(100% + 1px));
  transition: transform 0.3s ease-out;
}

header #mobile-nav.open {
  transform: translateX(0);
}

header #mobile-nav * {
  font-size: 1.2rem;
}

header #overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: transparent;
  z-index: -1;
  pointer-events: none;
  transition: background-color 0.3s ease-out;
}

header #overlay.open {
  background-color: rgba(0, 0, 0, 0.5);
  pointer-events: all;
}

header nav .menu-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

.header-inverted header nav .menu-button {
  background-color: transparent;
}

header nav .menu-button:hover,
.header-inverted header nav .menu-button:hover {
  box-shadow: none;
}

header nav .menu-button img {
  width: 2rem;
  height: 2rem;
}

header nav .mobile {
  display: none;
}

@media only screen and (max-width: 36rem) {
  header nav .desktop,
  header nav .dropdown {
    display: none;
  }

  header nav .mobile {
    display: inline-block;
  }
}