.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-brun-profond);
  border-bottom: 2px solid var(--color-moutarde);
  height: var(--header-height-mobile);
  display: flex;
  align-items: center;
}

.site-header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

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

.site-header__logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border: none;
  flex-shrink: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-craie);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.site-header__toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-craie);
  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 {
  position: fixed;
  top: var(--header-height-mobile);
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background-color: var(--color-brun-profond);
  border-left: 1px solid var(--color-brun-15);
  box-shadow: var(--shadow-floating);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  z-index: 1001;
  padding: var(--space-lg);
}

.site-header__nav.is-open {
  transform: translateX(0);
}

.site-header__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-header__item {
  margin: 0;
  padding: 0;
}

.site-header__link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-label);
  line-height: var(--leading-label);
  font-weight: var(--weight-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-craie);
  text-decoration: none;
  border-radius: var(--radius-button);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-header__link:hover,
.site-header__link:focus-visible {
  background-color: var(--color-moutarde);
  color: var(--color-brun-profond);
  text-decoration: none;
}

@media (min-width: 768px) {
  .site-header {
    height: var(--header-height-desktop);
  }

  .site-header__inner {
    padding-inline: var(--gutter-desktop);
  }

  .site-header__logo {
    width: 34px;
    height: 34px;
  }

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

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    border: none;
    box-shadow: none;
    transform: none;
    transition: none;
    overflow: visible;
    padding: 0;
    z-index: auto;
  }

  .site-header__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
  }

  .site-header__link {
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-craie);
    border-radius: 0;
  }

  .site-header__link:hover,
  .site-header__link:focus-visible {
    background-color: transparent;
    color: var(--color-moutarde);
    text-decoration: underline;
    text-decoration-color: var(--color-moutarde);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
  }
}

@media (max-width: 767px) {
  .site-header__nav.is-open {
    transform: translateX(0);
  }
}