/* Блок: header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1rem;
}

/* Логотип */
.header__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.header__logo:hover {
  color: var(--color-accent);
}

.header__logo-img {
  display: block;
  width: 140px;
}

/* Навигация */
.header__nav {
  display: none;
}

@media (min-width: 768px) {
  .header__nav {
    display: block;
  }
}

.header__menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.header__menu-item {
  margin: 0;
}

.header__link {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  border-radius: 0.5rem;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.header__link:hover {
  color: var(--color-text);
  background-color: rgba(0, 0, 0, 0.04);
}

/* Кнопка CTA */
.header__cta {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  background-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.header__cta:hover {
  background-color: var(--color-accent-hover);
}

@media (min-width: 768px) {
  .header__cta {
    display: inline-flex;
  }
}

/* Бургер-кнопка (мобильное меню) */
.header__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 0.5rem;
  transition: background-color var(--transition-fast);
}

.header__burger:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

@media (min-width: 768px) {
  .header__burger {
    display: none;
  }
}

.header__burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Состояние открытого меню */
.header_is-menu-open .header__burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header_is-menu-open .header__burger-line:nth-child(2) {
  opacity: 0;
}

.header_is-menu-open .header__burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header_is-menu-open .header__nav {
  display: block;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-surface);
  padding: 1.5rem var(--container-padding);
  overflow-y: auto;
}

.header_is-menu-open .header__menu {
  flex-direction: column;
  align-items: stretch;
  gap: 0.25rem;
}

.header_is-menu-open .header__link {
  padding: 0.875rem 1rem;
  font-size: 1rem;
}

.header_is-menu-open .header__cta {
  display: inline-flex;
  position: fixed;
  bottom: 1.5rem;
  left: var(--container-padding);
  right: var(--container-padding);
  padding: 1rem 1.25rem;
  z-index: 101;
}

/* Оверлей для закрытия по клику (опционально) */
.header__overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--header-height);
  background: rgba(0, 0, 0, 0.2);
  z-index: 99;
}

.header_is-menu-open .header__overlay {
  display: block;
}

@media (min-width: 768px) {
  .header__overlay {
    display: none !important;
  }
}