.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  background: var(--color-header-bg);
  z-index: 10;
}

.site-header__logo {
  display: flex;
  align-items: center;
}

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

.site-header__logo-img--dark {
  display: block;
}

.site-header__logo-img--light {
  display: none;
}

.site-header__right {
  display: flex;
  align-items: center;
  gap: 40px;
}

.site-header__nav {
  display: flex;
  gap: 32px;
}

.site-header__nav a {
  color: var(--color-header-text);
  font-weight: 400;
  font-size: 0.95rem;
}

.site-header__nav a:hover {
  color: var(--color-accent);
}

.site-header__social {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-header__social a {
  color: var(--color-header-text);
  display: flex;
}

.site-header__social a:hover {
  color: var(--color-accent);
}

.header-overlay {
  position: relative;
}

.header-overlay .site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
}

.header-overlay .site-header__nav a {
  color: var(--color-white-soft);
}

.header-overlay .site-header__social a {
  color: var(--color-white-soft);
}

.header-overlay .site-header__nav a:hover {
  color: var(--color-accent);
}

.header-overlay .site-header__social a:hover {
  color: var(--color-accent);
}

.header-overlay .site-header__logo-img--dark {
  display: none;
}

.header-overlay .site-header__logo-img--light {
  display: block;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

.site-header__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-header-text);
}

.header-overlay .site-header__toggle-bar {
  background: var(--color-white-soft);
}

@media (max-width: 768px) {
  .site-header {
    padding: 0 20px;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__right {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 20px 32px;
    background: var(--color-header-bg);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }

  .site-header__right.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-header__right .site-header__nav a,
  .site-header__right .site-header__social a {
    color: var(--color-header-text);
  }

  .site-header__nav {
    flex-direction: column;
    gap: 16px;
  }

  .site-header__social {
    gap: 16px;
  }
}