.site-header {
  position: relative;
  z-index: 110;
  border-bottom: var(--border-width) solid var(--color-dark-brown);
  background: var(--color-paper-deep);
  color: var(--color-dark-brown);
}

.site-header__inner {
  display: grid;
  min-height: 5.5rem;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}

.site-header__side {
  display: flex;
  min-width: 0;
  align-items: center;
}

.site-header__side--right {
  justify-content: flex-end;
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  justify-self: center;
  gap: var(--space-2);
  color: var(--color-dark-brown);
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 2vw, 1.625rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__brand:hover {
  color: var(--color-dark-brown);
  text-decoration: none;
}

.site-header__logo {
  width: clamp(2.75rem, 4vw, 3.25rem);
  height: clamp(2.75rem, 4vw, 3.25rem);
  flex: 0 0 auto;
  object-fit: contain;
}

.site-header__desktop-nav ul,
.site-header__mobile-nav ul {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__desktop-nav ul {
  align-items: center;
  gap: clamp(0.65rem, 1.5vw, 1.25rem);
}

.site-header__desktop-nav li,
.site-header__mobile-nav li,
.site-header__desktop-nav li + li,
.site-header__mobile-nav li + li {
  margin: 0;
  padding: 0;
}

.site-header__desktop-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-dark-brown);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.24em;
}

.site-header__toggle {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: var(--border-width) solid var(--color-dark-brown);
  border-radius: var(--radius-md);
  background: var(--color-sunny-yellow);
  color: var(--color-dark-brown);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
}

.site-header__toggle:hover {
  background: var(--color-sky-blue);
}

.site-header__toggle-lines {
  display: grid;
  width: 1.15rem;
  gap: 0.2rem;
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(1) {
  transform: translateY(0.4rem) rotate(45deg);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(3) {
  transform: translateY(-0.4rem) rotate(-45deg);
}

.site-header__mobile-nav {
  position: fixed;
  z-index: 120;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: none;
  overflow-x: hidden;
  overflow-y: auto;
  padding-top: 5.75rem;
  background: var(--color-paper);
}

.site-header__mobile-nav.is-open {
  display: block;
}

.site-header__mobile-nav-inner {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding-top: var(--space-6);
  padding-bottom: var(--space-7);
}

.site-header__mobile-kicker {
  margin: 0 0 var(--space-3);
  color: var(--color-brown-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: var(--leading-small);
  text-transform: uppercase;
}

.site-header__mobile-nav ul {
  flex-direction: column;
  border-top: var(--border-width) solid var(--color-dark-brown);
}

.site-header__mobile-nav li {
  border-bottom: var(--border-width) solid var(--color-dark-brown);
}

.site-header__mobile-nav a {
  display: block;
  padding: var(--space-4) 0;
  color: var(--color-dark-brown);
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 6vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.site-header__mobile-nav-footer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-6);
  color: var(--color-brown-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.site-header__mobile-nav-footer span:first-child {
  color: var(--color-orange);
  font-size: 1.5rem;
}

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

@media (max-width: 68rem) {
  .site-header__inner {
    min-height: 4.75rem;
  }

  .site-header__desktop-nav {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__side--right {
    min-height: 2.75rem;
  }

  .site-header__mobile-nav {
    padding-top: 5rem;
  }
}

@media (max-width: 30rem) {
  .site-header__inner {
    grid-template-columns: minmax(2.75rem, 1fr) auto minmax(2.75rem, 1fr);
    gap: var(--space-2);
    padding-inline: var(--space-3);
  }

  .site-header__toggle {
    padding: var(--space-2);
    z-index: 1000;
  }

  .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: 2.5rem;
    height: 2.5rem;
  }

  .site-header__brand {
    gap: 0.35rem;
    font-size: 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-lines span {
    transition: none;
  }
}