.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-deep-navy);
  color: var(--color-cool-white);
  border-block-end: 1px solid var(--color-brushed-silver);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-margin-mobile);
  min-height: 64px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-cool-white);
  min-width: 0;
  flex-shrink: 0;
}

.site-header__brand:hover {
  color: var(--color-cool-white);
}

.site-header__logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-h3-size);
  line-height: var(--text-h3-line-height);
  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: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-small);
  transition: background-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: rgba(192, 197, 206, 0.15);
}

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

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-cool-white);
  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-nav {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__item {
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.site-nav__link {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  color: var(--color-cool-white);
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius-small);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__link:hover {
  background-color: rgba(192, 197, 206, 0.15);
  color: var(--color-cool-white);
}

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

@media (max-width: 1023px) {
  .site-header__inner {
    min-height: 56px;
  }

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

  .site-header__brand-text {
    font-size: var(--text-body-size);
    line-height: var(--text-body-line-height);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    max-width: 100%;
    background-color: var(--color-deep-navy);
    border-inline-start: 1px solid var(--color-brushed-silver);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition-fast), visibility var(--transition-fast);
    z-index: 1001;
    overflow-y: auto;
    padding: var(--space-5) var(--space-4);
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav.nav-drawer-open {
    transform: translateX(0);
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
    width: 100%;
  }

  .site-nav__item {
    width: 100%;
  }

  .site-nav__link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-body-size);
    line-height: var(--text-body-line-height);
    border-radius: var(--radius-small);
  }

  .site-nav__link:hover {
    background-color: rgba(192, 197, 206, 0.15);
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    min-height: 72px;
    padding-inline: var(--container-margin-desktop);
  }

  .site-header__logo {
    width: 48px;
    height: 48px;
  }

  .site-header__brand-text {
    font-size: var(--text-h3-size);
    line-height: var(--text-h3-line-height);
  }

  .site-nav__link {
    font-size: var(--text-small-size);
    line-height: var(--text-small-line-height);
    padding: var(--space-2) var(--space-3);
  }
}