.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-tlo-pergamin);
  border-bottom: 1px solid var(--color-ramka-delikatna);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  min-height: 72px;
  padding-block: var(--spacing-3);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-3);
  text-decoration: none;
  color: var(--color-granat-tekst);
  flex-shrink: 0;
}

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

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

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-granat-tekst);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-ramka-delikatna);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: var(--color-papier-ciemny);
}

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

.site-header__toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-granat-tekst);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.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__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-5);
  flex-shrink: 1;
  min-width: 0;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

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

.site-header__nav-list a {
  display: inline-block;
  padding: var(--spacing-2) var(--spacing-1);
  font-size: var(--text-small);
  font-weight: var(--weight-label);
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-granat-tekst);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__nav-list a:hover {
  color: var(--color-czerwien-pocztowa);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.site-header__nav-list a[aria-current="page"] {
  font-weight: 700;
  color: var(--color-czerwien-pocztowa);
}

.site-header__cta {
  flex-shrink: 0;
  white-space: nowrap;
}

@media (max-width: 1023px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .site-header__toggle {
    display: flex;
    order: 3;
  }

  .site-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    background-color: var(--color-tlo-pergamin);
    border-bottom: 1px solid var(--color-ramka-delikatna);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-5);
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-4);
    z-index: 999;
  }

  .site-header__nav.is-open {
    display: flex;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-2);
  }

  .site-header__nav-list a {
    display: block;
    padding: var(--spacing-3) var(--spacing-2);
    font-size: var(--text-body);
    text-transform: none;
    letter-spacing: normal;
    border-bottom: 1px solid var(--color-ramka-delikatna);
  }

  .site-header__nav-list a:last-child {
    border-bottom: none;
  }

  .site-header__cta {
    align-self: stretch;
    text-align: center;
    margin-top: var(--spacing-2);
  }
}

@media (max-width: 639px) {
  .site-header__inner {
    min-height: 64px;
    padding-block: var(--spacing-2);
  }

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

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

  .site-header__nav {
    max-height: calc(100vh - 64px);
  }
}