.site-header {
  position: relative;
  z-index: 40;
  border-bottom: 2px solid var(--color-graphite-900);
  background: var(--color-oak-100);
}

.site-header__bar {
  min-height: 4.5rem;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 4.5rem;
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-graphite-900);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__mark {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 2.25rem;
  object-fit: contain;
}

.site-header__brand-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: inline-flex;
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-graphite-900);
  background: var(--color-cream-50);
  color: var(--color-graphite-900);
}

.site-header__toggle:hover {
  border-color: var(--color-petrol-700);
  background: var(--color-petrol-100);
  color: var(--color-graphite-900);
}

.site-header__toggle-lines {
  display: grid;
  gap: 0.25rem;
  width: 1.25rem;
}

.site-header__toggle-lines span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header--menu-open .site-header__toggle-lines span:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}

.site-header--menu-open .site-header__toggle-lines span:nth-child(2) {
  opacity: 0;
}

.site-header--menu-open .site-header__toggle-lines span:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

.site-header__nav {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  display: none;
  max-height: calc(100vh - 4.5rem);
  overflow-y: auto;
  border-top: 1px solid var(--color-line-oak);
  border-bottom: 2px solid var(--color-graphite-900);
  background: var(--color-cream-100);
  box-shadow: var(--shadow-sheet);
}

.site-header--menu-open .site-header__nav {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4) var(--page-padding);
}

.site-header__nav-list {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-left: 2px solid transparent;
  color: var(--color-graphite-900);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
}

.site-header__nav-list a:hover,
.site-header__nav-list a[aria-current="page"] {
  border-left-color: var(--color-copper-600);
  background: var(--color-petrol-100);
  color: var(--color-petrol-700);
}

.site-header__play {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.6875rem 1rem;
  border: 1px solid var(--color-petrol-700);
  border-radius: var(--radius-sm);
  background: var(--color-petrol-700);
  color: var(--color-cream-50);
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.site-header__play:hover {
  border-color: var(--color-graphite-900);
  background: var(--color-graphite-900);
  color: var(--color-cream-50);
}

.site-header__play:active {
  transform: translateY(2px);
}

@media (min-width: 68rem) {
  .site-header__bar,
  .site-header__inner {
    min-height: 4.875rem;
  }

  .site-header__inner {
    gap: var(--space-5);
  }

  .site-header__brand {
    flex: 0 0 auto;
    gap: var(--space-3);
    font-size: 1.5rem;
  }

  .site-header__mark {
    width: 2.625rem;
    height: 2.625rem;
    flex-basis: 2.625rem;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    display: flex;
    min-width: 0;
    max-height: none;
    flex: 1 1 auto;
    gap: var(--space-3);
    align-items: center;
    justify-content: flex-end;
    overflow: visible;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-header__nav-list {
    display: flex;
    min-width: 0;
    gap: 0;
    align-items: center;
  }

  .site-header__nav-list li {
    display: flex;
    align-items: center;
  }

  .site-header__nav-list li:nth-child(n + 7) {
    display: none;
  }

  .site-header__nav-list a {
    min-height: 2.5rem;
    padding: var(--space-2);
    border-bottom: 2px solid transparent;
    border-left: 0;
    font-size: 0.8125rem;
    white-space: nowrap;
  }

  .site-header__nav-list a:hover,
  .site-header__nav-list a[aria-current="page"] {
    border-bottom-color: var(--color-copper-600);
    border-left-color: transparent;
    background: transparent;
  }

  .site-header__play {
    flex: 0 0 auto;
    min-height: 2.5rem;
    padding-inline: var(--space-3);
    font-size: 0.8125rem;
    white-space: nowrap;
  }
}

@media (max-width: 29.99rem) {
  .site-header__inner {
    gap: var(--space-2);
  }

  .site-header__brand {
    font-size: 1.125rem;
  }
}