.site-header {
  position: relative;
  z-index: 50;
  width: 100%;
  border-bottom: var(--border-width) solid var(--color-ink);
  background: var(--color-background);
}

.site-header__inner {
  display: grid;
  min-height: 5.25rem;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-2);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  justify-self: center;
  gap: var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
}

.site-header__logo {
  width: 2.875rem;
  height: 2.875rem;
  flex: 0 0 auto;
  object-fit: contain;
}

.site-header__wordmark {
  white-space: nowrap;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
}

.site-header__toggle,
.site-header__close {
  display: none;
}

.site-header__nav {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
}

.site-header__nav-head {
  display: none;
}

.site-header__nav-list {
  display: flex;
  min-width: 0;
  align-items: stretch;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0;
}

.site-header__nav-list a,
.site-header__action {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-ink);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 0.8125rem;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.site-header__nav-list li + li a {
  border-left: 0;
}

.site-header__nav-list a {
  padding: 0.75rem 0.625rem;
}

.site-header__nav-list a:hover,
.site-header__action:hover {
  position: relative;
  z-index: 1;
  background: var(--color-mint);
  color: var(--color-ink);
  box-shadow: var(--shadow-pixel-small);
  transform: translate(2px, 2px);
}

.site-header__nav-list a:active,
.site-header__action:active {
  box-shadow: none;
  transform: translate(2px, 2px);
}

.site-header__action {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  padding: 0.75rem 0.875rem;
  border-width: var(--border-width);
  background: var(--color-coral);
  color: var(--color-surface);
  box-shadow: var(--shadow-pixel-small);
}

.site-header__action:hover {
  background: var(--color-coral-dark);
  color: var(--color-surface);
}

@media (max-width: 66rem) {
  .site-header__inner {
    min-height: 4.5rem;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--space-2);
  }

  .site-header__toggle {
    display: inline-flex;
    min-width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    border: var(--border-width) solid var(--color-ink);
    background: var(--color-surface);
    color: var(--color-ink);
    font-size: var(--text-meta);
    font-weight: 800;
    line-height: 1;
    box-shadow: var(--shadow-pixel-small);
  }

  .site-header__toggle:hover {
    background: var(--color-mint);
    box-shadow: none;
    transform: translate(2px, 2px);
  }

  .site-header__toggle:active {
    box-shadow: none;
    transform: translate(2px, 2px);
  }

  .site-header__toggle-icon {
    display: grid;
    width: 1rem;
    gap: 3px;
  }

  .site-header__toggle-icon span {
    display: block;
    height: 2px;
    background: currentColor;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(2) {
    opacity: 0;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }

  .site-header__toggle-icon span {
    transition: transform var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard);
  }

  .site-header__brand {
    justify-self: center;
  }

  .site-header__logo {
    width: 2.25rem;
    height: 2.25rem;
  }

  .site-header__wordmark {
    font-size: 1.1875rem;
  }

  .site-header__action {
    grid-column: 3;
    padding-inline: 0.625rem;
    font-size: 0.75rem;
  }

  .site-header__nav {
    position: fixed;
    z-index: 60;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    width: 100%;
    max-width: none;
    min-height: 100dvh;
    flex-direction: column;
    gap: var(--space-5);
    overflow-y: auto;
    padding: max(1rem, env(safe-area-inset-top)) var(--space-4) max(1rem, env(safe-area-inset-bottom));
    border: 0;
    background: rgba(23, 40, 58, 0.76);
    opacity: 0;
    pointer-events: none;
    transform: translateX(-100%);
    transition: opacity var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
  }

  .site-header__nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
  }

  .site-header__nav::before {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: min(100%, 32rem);
    content: "";
    border-right: var(--border-width-strong) solid var(--color-ink);
    background: var(--color-background);
  }

  .site-header__nav-head,
  .site-header__nav-list {
    position: relative;
    z-index: 1;
    width: min(100%, 32rem);
  }

  .site-header__nav-head {
    display: flex;
    min-height: 2.75rem;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
  }

  .site-header__nav-label {
    padding: var(--space-2) var(--space-3);
    border: 2px solid var(--color-ink);
    background: var(--color-mint);
    font-size: var(--text-score);
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .site-header__close {
    display: inline-flex;
    width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    border: var(--border-width) solid var(--color-ink);
    background: var(--color-surface);
    color: var(--color-ink);
    font-size: 1.75rem;
    font-weight: 400;
    line-height: 1;
    box-shadow: var(--shadow-pixel-small);
  }

  .site-header__nav-list {
    display: grid;
    gap: var(--space-3);
  }

  .site-header__nav-list li,
  .site-header__nav-list li + li {
    display: block;
  }

  .site-header__nav-list a,
  .site-header__nav-list li + li a {
    width: 100%;
    min-height: 3rem;
    justify-content: flex-start;
    padding-inline: var(--space-4);
    border: var(--border-width) solid var(--color-ink);
    font-size: 1rem;
  }

  body.site-header-menu-open {
    overflow: hidden;
  }
}

@media (max-width: 30rem) {
  .site-header__inner {
    min-height: 4.125rem;
  }

  .site-header__toggle-text {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

  .site-header__logo {
    width: 2rem;
    height: 2rem;
  }

  .site-header__wordmark {
    font-size: 1.0625rem;
  }

  .site-header__action {
    min-width: 2.75rem;
    padding: 0.5rem;
    font-size: 0.6875rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__nav,
  .site-header__toggle-icon span,
  .site-header__nav-list a,
  .site-header__action,
  .site-header__toggle {
    transition: none;
  }
}