.header-placeholder { height: var(--header-height); }

.site-header {
  position: relative;
  z-index: 50;
  width: 100%;
  background: var(--color-white);
  box-shadow: 0 10px 50px rgb(21 21 21 / 10%);
}

.site-header.is-fixed {
  position: fixed;
  inset: 0 0 auto;
}

.site-header__top {
  height: 69px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}

.site-header__contacts {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

.site-header a { text-decoration: none; }

.site-header__logo { flex: 0 0 154px; }
.site-header__logo img { width: 154px; height: 52px; object-fit: contain; }

.site-header__email,
.site-header__address,
.site-header__phone { white-space: nowrap; }

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

.header-socials { display: flex; align-items: center; gap: 5px; flex-shrink: 0; }
.header-socials__item, .header-socials__item img { width: 36px; height: 36px; }
.header-socials__item { display: block; flex-shrink: 0; transition: opacity 150ms ease; }
.header-socials__item:hover { opacity: 0.85; }
.header-socials--bottom { display: none; }

.site-header__nav { position: relative; background: var(--color-white); }

.site-header__nav-inner {
  display: flex;
  align-items: center;
  max-width: var(--page-width);
  height: 70px;
  margin-inline: auto;
}

.site-header__link {
  display: flex;
  flex: 1 1 0;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  padding: 0;
  border: 0;
  color: var(--color-text);
  background: transparent;
  white-space: nowrap;
  transition: color 150ms ease, background-color 150ms ease;
}

.site-header__link:hover,
.site-header__mobile-link:hover { color: var(--color-accent); background: var(--color-background); }
.site-header__link:focus-visible { outline-offset: -4px; }
.site-header__label {
  display: block;
  text-box-trim: trim-both;
  text-box-edge: cap alphabetic;
}
.site-header__catalog { gap: 10px; text-align: center; }
.site-header__catalog svg { flex-shrink: 0; width: 20px; height: 20px; }
.site-header__callback { flex: 0 0 auto; padding-inline: 64px; }
.site-header__menu-toggle { display: none; }
.site-header__phone-icon { display: none; }
.site-header__mobile-menu[hidden] { display: none; }

/* 1.8.1: native catalog tree; parent labels remain navigation links. */
.site-header__catalog-group { display: flex; flex: 1 1 0; align-self: stretch; }
.site-header__catalog-group > .site-header__catalog { width: 100%; }
.catalog-mobile { display: none; }
.site-header__catalog-toggle { display: none; }
.catalog-menu { list-style: none; margin: 0; padding: 8px; }
.catalog-menu[hidden] { display: none; }
.catalog-menu__row { display: flex; align-items: center; }
.catalog-menu__link { display: block; flex: 1; min-width: 0; padding: 12px; color: var(--color-text); font-size: 14px; white-space: normal; overflow-wrap: anywhere; }
.catalog-menu__link:hover, .catalog-menu__link:focus-visible { color: var(--color-accent); background: var(--color-background); }
.catalog-menu__arrow { margin-right: 12px; color: var(--color-accent); }
.catalog-menu__toggle { display: none; }

@media (min-width: 769px) {
  .site-header__callback { color: var(--color-white); background: var(--color-accent); }
  .site-header__callback:hover { color: var(--color-white); background: var(--color-accent-dark); }
  .site-header__callback:focus-visible { outline: 2px solid var(--color-white); outline-offset: -4px; box-shadow: inset 0 0 0 2px var(--color-accent-dark); }
  .catalog-menu { position: fixed; z-index: 60; width: 240px; max-width: calc(100vw - 32px); max-height: calc(100dvh - 32px); overflow: auto; background: var(--color-white); border: 1px solid var(--color-border); box-shadow: 0 10px 50px rgb(21 21 21 / 10%); }
}

@media (max-width: 1024px) {
  .site-header__top { height: 55px; }
  .site-header__logo { flex-basis: 102px; }
  .site-header__logo img { width: 102px; height: auto; }
  .site-header__address { display: none; }
  .header-socials__item, .header-socials__item img { width: 30px; height: 30px; }
  .site-header__nav-inner { height: 50px; }
  .site-header__link { padding-inline: 10px; }
  .site-header__callback { padding-inline: 24px; }
}

@media (max-width: 768px) {
  :root { --header-height: 82px; }
  .site-header__top { height: 82px; border-bottom: 0; }
  .site-header__contacts { gap: 12px; }
  .site-header__logo { flex: 1 1 auto; min-width: 0; }
  .site-header__logo img { width: min(58vw, 260px); max-height: 68px; }
  .site-header__email,
  .site-header__phone,
  .header-socials--top,
  .site-header__desktop-link { display: none; }
  .site-header__phone-icon { display: grid; flex: 0 0 48px; width: 48px; height: 48px; place-items: center; border-radius: 10px; color: #fff; background: var(--color-accent); }
  .site-header__phone-icon svg { width: 25px; height: 25px; }
  .site-header__nav-inner { display: none; }
  .site-header__catalog { flex: 0 0 auto; }
  .site-header__menu-toggle { display: flex; flex: 0 0 48px; width: 48px; height: 48px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border: 2px solid var(--color-accent); border-radius: 10px; background: #fff; color: var(--color-accent); }
  .site-header__menu-toggle span { width: 24px; height: 2px; background: currentColor; border-radius: 2px; }
  .site-header__menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .site-header__menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .site-header__menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .header-socials--bottom { display: none; }
  .site-header__mobile-menu {
    position: absolute;
    inset: 0 0 auto;
    padding: 8px var(--container-gutter) 16px;
    border-top: 1px solid var(--color-border);
    background: var(--color-white);
    box-shadow: 0 16px 24px rgb(21 21 21 / 10%);
  }
  .site-header__mobile-link { display: flex; align-items: center; min-height: 44px; padding-inline: 10px; }
  .site-header__catalog-group { flex: 0 0 auto; }
  .site-header__catalog-group > a.site-header__catalog { display: none; }
  .site-header__catalog-toggle { display: flex; cursor: pointer; }
  .site-header__catalog-group > .catalog-menu { display: none; }
  .catalog-mobile { display: block; }
  .catalog-mobile > .catalog-menu__row > a { flex: 1; }
  .catalog-menu { padding: 0 0 0 12px; border-left: 1px solid var(--color-border); }
  .catalog-menu__link { padding: 12px 10px; }
  .catalog-menu__arrow { display: none; }
  .catalog-menu__toggle { display: flex; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; min-height: 44px; padding: 0; border: 0; background: transparent; color: var(--color-accent); font-size: 24px; cursor: pointer; }
  .catalog-menu__toggle:focus-visible { outline-offset: -4px; }
  .site-header__mobile-menu { max-height: calc(100dvh - var(--header-height) - 16px); overflow-y: auto; }
  .site-header__mobile-menu { overscroll-behavior: contain; }
  .site-header__mobile-callback { color: var(--color-white); background: var(--color-accent); }
  .site-header__mobile-callback:hover { color: var(--color-white); background: var(--color-accent-dark); }
  .site-header__mobile-callback:focus-visible { outline: 2px solid var(--color-white); outline-offset: -4px; box-shadow: inset 0 0 0 2px var(--color-accent-dark); }
}