/* Site header navigation */

.navigation {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-navigation);
  background-color: rgba(5, 10, 15, 0.9);
  backdrop-filter: blur(24px);
  padding-block: 1.6rem;
  border: none;
  border-block-end: 4px solid var(--primary-glow);
  color: var(--white);
}

.navigation-background {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: rgba(5, 10, 15, 0.9);
  backdrop-filter: blur(24px);
  overflow: hidden;
}

.navigation-background::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  box-shadow: 0 0 30px var(--primary-glow);
}

.navigation-inner {
  display: grid;
  grid-template-areas: "nav-brand nav-menu";
  grid-template-columns: auto 1fr;
  align-items: center;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: 1.6rem;
  gap: 1rem;
}

.navigation-brand {
  grid-area: nav-brand;
  justify-self: start;
  padding: 0.4rem 1rem;
}

.navigation-brand a {
  display: block;
  color: var(--white);
  text-decoration: none;
}

.navigation-brand img {
  margin: 0;
  width: 8rem;
  height: auto;
  transition: transform 200ms linear;
}

.navigation-brand a:hover img,
.navigation-brand a:focus img {
  transform: scale(1.1);
}

.navigation-toggle {
  display: none;
  grid-area: nav-toggle;
  align-items: center;
  justify-content: center;
  justify-self: end;
  width: 4.4rem;
  height: 4.4rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--copy-color);
}

.navigation-toggle-icon {
  display: block;
  width: 3.2rem;
  height: 3.2rem;
  transition: transform 0.2s ease-in-out;
}

.navigation-toggle-quads,
.navigation-toggle-ticks {
  fill: currentColor;
}

.navigation-toggle:hover .navigation-toggle-quads,
.navigation-toggle:focus-visible .navigation-toggle-quads,
.navigation.is-open .navigation-toggle-quads {
  fill: var(--yop-red);
}

.navigation-toggle:focus-visible {
  outline: 2px solid var(--yop-red);
  outline-offset: 0.4rem;
}

.navigation.is-open .navigation-toggle-icon {
  transform: rotate(45deg);
}

.navigation-menu {
  grid-area: nav-menu;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-end;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.4rem 1rem;
}

.navigation-menu a {
  font-family: "Ubuntu", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  padding: 0.4rem 1.4rem;
  display: flex;
  color: var(--copy-color);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.8ch;
  transition: all 0.2s ease-in-out;
}

.navigation-menu a:hover,
.navigation-menu a:focus,
.navigation-menu .is-active a {
  text-decoration-color: var(--yop-red);
  text-decoration-thickness: 3px;
  color: var(--yop-red);
}

@media (max-width: 720px) {
  .navigation-inner {
    grid-template-areas: "nav-brand nav-toggle";
    grid-template-columns: 1fr auto;
  }

  .navigation-toggle {
    display: flex;
  }

  .navigation-menu {
    position: absolute;
    inset-inline: 0;
    inset-block-start: 100%;
    display: none;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding-block: 0.8rem 1.6rem;
    padding-inline: 1.6rem;
    background-color: rgba(5, 10, 15, 0.95);
    backdrop-filter: blur(24px);
    border-block-end: 4px solid var(--primary-glow);
  }

  .navigation.is-open {
    border-block-end-color: transparent;
  }

  .navigation.is-open .navigation-menu {
    display: flex;
  }

  .navigation-menu a {
    padding-block: 1rem;
    padding-inline: 1.4rem;
  }

  .navigation-brand img {
    width: 6.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .navigation-toggle-icon {
    transition: none;
  }
}