.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 2px 12px rgba(21,101,192,0.07);
  transition: box-shadow var(--tr-normal);
}

.header.is-scrolled {
  box-shadow: 0 4px 24px rgba(21,101,192,0.12);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  height: var(--header-h);
}

/* ---- LOGO ---- */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header__logo-name {
  font-size: var(--fz-xl);
  font-weight: 700;
  color: var(--clr-primary);
  letter-spacing: -0.02em;
}

.header__logo-sub {
  font-size: var(--fz-xs);
  color: var(--clr-text-muted);
  font-weight: 400;
  white-space: nowrap;
}

/* ---- DESKTOP NAV ---- */
.header__nav {
  flex: 1;
  display: none;
}

@media (min-width: 1024px) {
  .header__nav {
    display: block;
  }
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.header__nav-item {
  position: relative;
}

.header__nav-link,
.header__nav-link--btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fz-sm);
  font-weight: 600;
  color: var(--clr-text);
  border-radius: var(--r-md);
  transition: color var(--tr-fast), background var(--tr-fast);
  white-space: nowrap;
}

.header__nav-link:hover,
.header__nav-link--btn:hover {
  color: var(--clr-primary);
  background: var(--clr-primary-pale);
}

.header__nav-link--active {
  color: var(--clr-primary);
}

.header__nav-link--btn svg {
  transition: transform var(--tr-fast);
}

.header__nav-item--dropdown:hover .header__nav-link--btn svg,
.header__nav-item--dropdown .header__nav-link--btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

/* Dropdown */
.header__dropdown {
  position: absolute;
  top: calc(100% + var(--sp-2));
  left: 0;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  box-shadow: 0 8px 32px rgba(21,101,192,0.12);
  min-width: 220px;
  padding: var(--sp-2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--tr-fast), transform var(--tr-fast);
  z-index: 50;
}

.header__nav-item--dropdown:hover .header__dropdown,
.header__nav-item--dropdown:focus-within .header__dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* Invisible bridge to cover the gap between nav link and dropdown */
.header__dropdown::before {
  content: '';
  position: absolute;
  top: calc(-1 * var(--sp-2) - 2px);
  left: 0;
  right: 0;
  height: calc(var(--sp-2) + 2px);
}

.header__dropdown-link {
  display: block;
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fz-sm);
  color: var(--clr-text);
  border-radius: var(--r-sm);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.header__dropdown-link:first-child {
  font-weight: 600;
  color: var(--clr-primary);
  border-bottom: 1px solid var(--clr-border);
  margin-bottom: var(--sp-1);
  padding-bottom: var(--sp-3);
}

.header__dropdown-link:hover {
  background: var(--clr-primary-pale);
  color: var(--clr-primary);
}

/* ---- ACTIONS ---- */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: auto;
}

.header__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--r-md);
  color: var(--clr-text-muted);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.header__icon-btn:hover {
  background: var(--clr-primary-pale);
  color: var(--clr-primary);
}

.header__cta {
  display: none;
}

@media (min-width: 640px) {
  .header__cta { display: inline-flex; }
}

/* ---- MULTILINK ---- */
.multilink {
  position: relative;
}

.multilink__panel {
  position: absolute;
  top: calc(100% + var(--sp-2));
  right: 0;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  box-shadow: 0 8px 32px rgba(21,101,192,0.14);
  min-width: 240px;
  padding: var(--sp-2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--tr-fast), transform var(--tr-fast);
  z-index: 50;
}

.multilink:hover .multilink__panel,
.multilink:focus-within .multilink__panel,
.multilink__trigger[aria-expanded="true"] ~ .multilink__panel {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.multilink__item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border-radius: var(--r-md);
  transition: background var(--tr-fast);
  text-decoration: none;
}

.multilink__item:hover { background: var(--clr-bg); }

.multilink__item-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}


.multilink__item--call .multilink__item-icon { background: var(--clr-primary-pale); color: var(--clr-primary); }
.multilink__item--wa .multilink__item-icon { background: #E8F5E9; color: #25D366; }
.multilink__item--tg .multilink__item-icon { background: #E3F2FD; color: #0088cc; }
.multilink__item--max .multilink__item-icon { background: #F3EEFF; color: #6B3FA0; }

.multilink__item strong {
  display: block;
  font-size: var(--fz-sm);
  font-weight: 600;
  color: var(--clr-text);
}

.multilink__item-sub {
  display: block;
  font-size: var(--fz-xs);
  color: var(--clr-text-muted);
}

/* ---- SEARCH BAR ---- */
.header__search-bar {
  background: var(--clr-white);
  border-top: 1px solid var(--clr-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--tr-normal), padding var(--tr-normal);
}

.header__search-bar.is-open {
  max-height: 280px;
  padding-block: var(--sp-3);
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-wrap__icon {
  position: absolute;
  left: var(--sp-4);
  color: var(--clr-text-muted);
  pointer-events: none;
}

.search-wrap__input {
  width: 100%;
  padding: 0.75rem var(--sp-10) 0.75rem 3rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-full);
  font-size: var(--fz-md);
  color: var(--clr-text);
  background: var(--clr-bg);
  outline: none;
  transition: border-color var(--tr-fast);
}

.search-wrap__input:focus { border-color: var(--clr-primary); }

.search-wrap__clear {
  position: absolute;
  right: var(--sp-4);
  color: var(--clr-text-muted);
  display: none;
}

.search-wrap__clear.visible { display: flex; }

.search-results {
  margin-top: var(--sp-2);
  background: var(--clr-white);
  border-radius: var(--r-md);
  border: 1px solid var(--clr-border);
  overflow: hidden;
  display: none;
}

.search-results.has-results { display: block; }

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-4);
  cursor: pointer;
  transition: background var(--tr-fast);
  font-size: var(--fz-sm);
  border-bottom: 1px solid var(--clr-border);
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--clr-primary-pale); color: var(--clr-primary); }

.search-result-item__price {
  color: var(--clr-primary);
  font-weight: 600;
  white-space: nowrap;
  margin-left: var(--sp-4);
}

/* ---- BURGER ---- */
.header__burger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
}

@media (min-width: 1024px) {
  .header__burger { display: none; }
}

.header__burger span {
  display: block;
  width: 100%;
  height: 2.5px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--tr-normal), opacity var(--tr-normal);
  transform-origin: center;
}

.header__burger.is-open span:nth-child(1) { transform: translateY(8.75px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__burger.is-open span:nth-child(3) { transform: translateY(-8.75px) rotate(-45deg); }

/* ---- MOBILE NAV ---- */
.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--clr-white);
  z-index: 99;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--tr-normal);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav__inner {
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.mobile-nav__group-toggle {
  width: 100%;
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fz-md);
  font-weight: 600;
  color: var(--clr-text);
  border-radius: var(--r-md);
  background: var(--clr-bg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--tr-fast);
}

.mobile-nav__group-toggle::after {
  content: '›';
  font-size: 1.25rem;
  transition: transform var(--tr-fast);
}

.mobile-nav__group-toggle[aria-expanded="true"]::after {
  transform: rotate(90deg);
}

.mobile-nav__group-toggle:hover { background: var(--clr-primary-pale); color: var(--clr-primary); }

.mobile-nav__sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--tr-normal);
  padding-left: var(--sp-4);
}

.mobile-nav__sub.is-open { max-height: 300px; }

.mobile-nav__sub li a {
  display: block;
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fz-sm);
  color: var(--clr-text-muted);
  border-radius: var(--r-sm);
  transition: color var(--tr-fast), background var(--tr-fast);
}

.mobile-nav__sub li a:hover { color: var(--clr-primary); background: var(--clr-primary-pale); }

.mobile-nav__link {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fz-md);
  font-weight: 600;
  color: var(--clr-text);
  border-radius: var(--r-md);
  background: var(--clr-bg);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.mobile-nav__link:hover { background: var(--clr-primary-pale); color: var(--clr-primary); }

.mobile-nav__contacts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--clr-border);
}

/* =====================================================
   MOBILE 320px — header adaptations
   ===================================================== */
@media (max-width: 479px) {
  /* Logo: hide subtitle, shrink name font */
  .header__logo-sub {
    display: none;
  }

  .header__logo-name {
    font-size: var(--fz-lg);
  }

  /* "Связаться" button: icon-only at small screens */
  .multilink__trigger {
    font-size: 0;
    gap: 0;
    padding: 0.5rem;
    min-width: 38px;
    justify-content: center;
  }

  .multilink__trigger svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  /* Multilink panel: constrain width so it doesn't overflow viewport */
  .multilink__panel {
    min-width: 0;
    width: calc(100vw - 2rem);
    right: -0.5rem;
  }

  /* Burger: slightly smaller hit area fine */
  .mobile-nav__contacts {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 359px) {
  .header__logo-icon img {
    width: 32px;
    height: 32px;
  }

  .header__icon-btn {
    width: 32px;
    height: 32px;
  }
}