.site-header {
  position: absolute;
  top: 33px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 60px;
}

.site-header__inner {
  background-color: var(--color-header-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  height: 63px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  max-width: 1320px;
  margin: 0 auto;
}

.site-header__logo {
  flex-shrink: 0;
}

.site-header__logo-link {
  display: block;
  width: 96px;
  height: 81px;
  transition: var(--transition-fast);
}

.site-header__logo-link:hover {
  opacity: 0.8;
}

.site-header__logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-header__nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.main-nav__menu {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav__item {
  margin: 0;
}

.main-nav__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  color: var(--color-text-white);
  text-decoration: none;
  transition: var(--transition-fast);
}

.main-nav__link:hover,
.main-nav__link:focus {
  color: var(--color-accent-cyan-bright);
}

.main-nav__link.current-menu-item,
.main-nav__link.current_page_item {
  color: var(--color-accent-cyan-bright);
}

.site-header__auth {
  display: flex;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.auth-btn {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-white);
  background: transparent;
  border: 1px solid var(--color-border-opacity-30);
  border-radius: 4px;
  padding: 0 var(--spacing-md);
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.auth-btn:hover,
.auth-btn:focus {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--color-accent-cyan-bright);
  color: var(--color-accent-cyan-bright);
}

.auth-btn--register {
  background-color: var(--color-accent-cyan-bright);
  border-color: var(--color-accent-cyan-bright);
  color: var(--color-text-black);
}

.site-header__hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.site-header__hamburger:hover {
  opacity: 0.7;
}

.hamburger__line {
  width: 24px;
  height: 3px;
  background-color: var(--color-text-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.site-header__hamburger.is-active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.site-header__hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.site-header__hamburger.is-active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 1024px) {
  .site-header {
    padding: 0 20px;
    top: 20px;
  }

  .site-header__inner {
    padding: 0 var(--spacing-sm);
  }

  .main-nav__menu {
    gap: var(--spacing-md);
  }

  .auth-btn {
    font-size: 16px;
    padding: 0 var(--spacing-sm);
  }
}

@media (max-width: 768px) {
  .site-header__logo-link {
    width: 70px;
    height: 60px;
  }

  .main-nav__menu {
    gap: var(--spacing-sm);
  }

  .main-nav__link {
    font-size: 14px;
  }

  .auth-btn {
    font-size: 14px;
    height: 32px;
  }
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 96px;
  left: 20px;
  right: 20px;
  background-color: var(--color-header-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  z-index: 999;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.mobile-menu.is-active {
  display: block;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu__nav {
  margin-bottom: var(--spacing-lg);
}

.mobile-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.mobile-menu__item {
  margin: 0;
}

.mobile-menu__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  color: var(--color-text-white);
  display: block;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link:focus {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-accent-cyan-bright);
}

.mobile-menu__auth {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.mobile-auth-btn {
  width: 100%;
  justify-content: center;
}

@media (max-width: 991px) {
  .site-header__nav,
  .site-header__auth {
    display: none;
  }

  .site-header__hamburger {
    display: flex;
    z-index: 1001;
  }
}