/* Header ----------------------------------------------------------------- */
.site-header {
  border-bottom: var(--rule) solid var(--ink);
}

.site-header__tagline {
  margin: 0;
  padding: 0.5rem var(--gutter);
  border-bottom: var(--rule-thin) solid var(--ink);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.site-header__bar {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "home report"
    "nav nav";
}

.site-header__home {
  grid-area: home;
  display: flex;
  align-items: center;
  min-height: var(--target);
  padding: 1rem var(--gutter);
  font-size: var(--step-1);
  text-decoration: none;
}

.site-header__home:focus-visible {
  outline-offset: -6px;
}

.site-nav {
  grid-area: nav;
}

.site-nav__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: var(--rule) solid var(--ink);
}

.site-nav__list li + li {
  border-left: var(--rule) solid var(--ink);
}

.site-nav__list li:nth-child(3) {
  border-left: 0;
}

.site-nav__list li:nth-child(n + 3) {
  border-top: var(--rule) solid var(--ink);
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  min-height: 3.25rem;
  padding: 0.75rem var(--gutter);
  font-weight: 700;
  font-stretch: 110%;
  line-height: 1.1;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  transition:
    background-color 160ms var(--ease-out),
    color 160ms var(--ease-out);
}

.site-nav__link:hover {
  text-decoration: underline;
  text-decoration-thickness: var(--rule);
}

.site-nav__link[aria-current="page"] {
  font-weight: 900;
}

/* Current section: a heavy bar along the bottom. Inversion is reserved for the report action. */
.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: calc(var(--rule) * 2);
  background: var(--ink);
}

.site-nav__link:focus-visible {
  outline-offset: -7px;
}

/* Report: the one solid, inverted action in the header. */
.site-header__report {
  grid-area: report;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: var(--target);
  padding: 0.75rem var(--gutter);
  border-left: var(--rule) solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-weight: 900;
  font-stretch: 112%;
  line-height: 1.1;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-header__report::after {
  content: "+";
  font-size: 1.4em;
  font-weight: 400;
  line-height: 1;
}

.site-header__report:hover {
  text-decoration: underline;
  text-decoration-thickness: var(--rule);
  text-underline-offset: 0.25em;
}

.site-header__report:focus-visible {
  outline-color: var(--paper);
  outline-offset: -7px;
}

@media (max-width: 23rem) {
  .site-header__report-more {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

@media (min-width: 40rem) {
  .site-nav__list {
    grid-template-columns: repeat(4, 1fr);
  }

  .site-nav__list li:nth-child(n) {
    border-top: 0;
  }

  .site-nav__list li:nth-child(3) {
    border-left: var(--rule) solid var(--ink);
  }

  .site-header__report {
    padding-inline: clamp(1.25rem, 0.5rem + 2vw, 2.25rem);
    font-size: var(--step-1);
  }
}

@media (min-width: 72rem) {
  .site-header__bar {
    grid-template-columns: 1fr auto auto;
    grid-template-areas: "home nav report";
  }

  .site-nav {
    border-left: var(--rule) solid var(--ink);
  }

  .site-nav__list {
    grid-template-columns: repeat(4, auto);
    height: 100%;
    border-top: 0;
  }

  .site-nav__list li:nth-child(n) {
    border-top: 0;
  }

  .site-nav__list li:nth-child(3) {
    border-left: var(--rule) solid var(--ink);
  }

  .site-nav__link {
    padding-inline: clamp(1rem, 0.5rem + 1vw, 1.75rem);
  }
}

@media (forced-colors: active) {
  .site-nav__link[aria-current="page"]::after {
    forced-color-adjust: none;
    background: CanvasText;
  }

  .site-header__report {
    forced-color-adjust: none;
    background: CanvasText;
    color: Canvas;
  }
}