.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-petrol);
  color: var(--color-text-on-dark);
  width: 100%;
}

.site-header__inner {
  max-width: var(--container-standard);
  margin: 0 auto;
  padding: 0 var(--container-padding-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: var(--space-md);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
  min-width: 0;
}

.site-header__brand:hover {
  text-decoration: none;
  color: inherit;
}

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-ivory);
  flex-shrink: 0;
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header__toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

.site-header__menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__menu-item {
  margin: 0;
  padding: 0;
}

.site-header__link {
  display: inline-block;
  padding: var(--space-xs) 0;
  color: var(--color-ivory);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.5;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__link:hover {
  color: var(--color-terracotta);
  text-decoration: none;
}

.site-header__link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.site-header__link[aria-current="page"] {
  color: var(--color-terracotta);
  text-decoration: underline;
  text-decoration-color: var(--color-terracotta);
  text-underline-offset: 4px;
}

@media (max-width: 1023px) {
  .site-header__inner {
    padding: 0 var(--container-padding-tablet);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-petrol);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-fast);
    z-index: 1001;
  }

  .site-header__nav.is-open {
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .site-header__menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-md) 0;
  }

  .site-header__menu-item {
    width: 100%;
  }

  .site-header__link {
    display: block;
    padding: var(--space-md) var(--container-padding-tablet);
    font-size: 1.125rem;
    white-space: normal;
  }

  .site-header__link:hover {
    background-color: var(--color-petrol-light);
    color: var(--color-ivory);
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    padding: 0 var(--container-padding-mobile);
    min-height: 56px;
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }

  .site-header__brand-text {
    font-size: 16px;
  }

  .site-header__nav.is-open {
    max-height: calc(100vh - 56px);
  }

  .site-header__link {
    padding: var(--space-md) var(--container-padding-mobile);
  }
}

@media (max-width: 359px) {
  .site-header__brand-text {
    max-width: 140px;
    white-space: normal;
    line-height: 1.1;
  }
}