.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background-color var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background-color: var(--color-dark);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.header__logo img {
  height: 42px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header__link {
  color: var(--color-white);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition);
}

.header__link:hover,
.header__link.active {
  color: var(--color-accent);
}

.header__link:hover::after,
.header__link.active::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-small);
  transition: color var(--transition);
}

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

.header__phone svg {
  flex-shrink: 0;
}

.header__lang {
  display: flex;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  overflow: hidden;
}

.lang-btn {
  padding: 4px 10px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.lang-btn.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.lang-btn:hover:not(.active) {
  color: var(--color-white);
}

/* Burger */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.header__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}

.header__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
  opacity: 0;
}

.header__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.header__nav.mobile-open {
  position: fixed;
  inset: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
  background-color: var(--color-dark);
  z-index: 99;
}

.header__nav.mobile-open .header__link {
  font-size: 1.25rem;
}