/* ============================================================
   Bohemia Design System — Header & Navigation
   ============================================================ */

/* ----- HEADER ----- */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--bh-border-light);
  transition: box-shadow 0.3s;
}

.main-header.scrolled {
  box-shadow: var(--bh-shadow-sm);
}

.header-container {
  padding: 0 var(--bh-sp-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
  max-width: 1200px;
  height: 68px;
}

.flex-row {
  display: flex;
  flex-direction: row;
  gap: var(--bh-sp-3);
  align-items: center;
}

.menus-container {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
}

.top-menu-items {
  display: flex;
  flex-direction: row;
  gap: var(--bh-sp-2);
  justify-content: end;
  align-items: center;
}

.top-menu-items a {
  color: var(--bh-stone-600);
  padding: 8px 14px;
  font-size: var(--bh-text-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--bh-radius-md);
  transition: all var(--bh-dur-fast);
}

.top-menu-items a:hover {
  color: var(--bh-text-primary);
  background: var(--bh-stone-100);
}

/* ----- LOGO ----- */
.header-logo {
  z-index: 99;
  height: 48px;
  color: var(--bh-text-primary);
  text-decoration: none;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--bh-sp-3);
}

.header-logo a {
  display: inline-flex;
  align-items: center;
  gap: var(--bh-sp-3);
  text-decoration: none;
  color: inherit;
}

.header-logo img {
  height: 100%;
  width: auto;
  max-width: unset;
  vertical-align: middle;
  border-radius: var(--bh-radius-md);
}

.call {
  white-space: nowrap;
  font-size: var(--bh-text-sm);
  font-weight: 600;
  color: var(--bh-stone-600);
}

@media (min-width: 769px) and (max-width: 1000px) {
  .call { white-space: normal; }
}

/* ----- MENU ----- */
.menu {
  position: relative;
  display: flex;
  align-items: center;
  z-index: 101;
  justify-content: end;
}

.menu span.arrow-down {
  margin-left: 0.25em;
  font-size: 10px;
  opacity: 0.5;
}

.menu ul {
  display: flex;
  list-style-type: none;
  margin: 0;
  padding: 0;
  gap: var(--bh-sp-1);
}

.menu li {
  position: relative;
}

.menu li a {
  display: block;
  color: var(--bh-stone-600);
  text-decoration: none;
  padding: 8px 14px;
  font-size: var(--bh-text-sm);
  font-weight: 500;
  border-radius: var(--bh-radius-md);
  transition: all var(--bh-dur-fast);
}

.menu .submenu li a {
  padding: 6px 0;
}

.menu li a:hover,
.menu .submenu li a:hover {
  color: var(--bh-garnet-600);
  background: var(--bh-garnet-50);
}

.menu li.search-icon a {
  padding: 0;
  width: 32px;
  height: 48px;
}

.menu li.search-icon a span {
  display: block;
  text-indent: -9999px;
}

/* ----- SUBMENU ----- */
.menu .submenu {
  display: none;
  position: absolute;
  background-color: var(--bh-surface-card);
  box-shadow: var(--bh-shadow-lg);
  z-index: 100;
  width: 400px;
  padding: var(--bh-sp-5);
  border-radius: var(--bh-radius-lg);
  top: 48px;
  right: 0;
  border: 1px solid var(--bh-border-light);
}

.menu li.menu-item-has-children:last-of-type .submenu {
  right: 0;
}

.level-1 {
  display: none;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--bh-sp-4);
  justify-content: space-between;
}

.menu li:hover > .level-1 {
  display: flex;
}

.menu li:hover > .level-1 > li {
  flex: 1 0 45%;
}

.menu ul .level-2 {
  display: none;
  flex-direction: column;
  padding-left: var(--bh-sp-3);
  gap: var(--bh-sp-1);
}

.menu li:hover .level-2 {
  display: flex;
}

.menu .submenu li {
  display: block;
  margin: 0;
  padding: 0;
  break-inside: avoid;
}

.menu .submenu li a {
  display: block;
  color: var(--bh-stone-600);
  font-size: var(--bh-text-sm);
}

.menu .submenu li a:hover {
  color: var(--bh-garnet-600);
  background: transparent;
}

/* ----- BURGER MENU ----- */
.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 20px;
  cursor: pointer;
  z-index: 1003;
  position: relative;
}

.burger-menu span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--bh-stone-700);
  transition: 0.3s var(--bh-ease-out);
  border-radius: 2px;
}

.burger-menu.special-page span {
  background-color: var(--bh-text-primary);
}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */

@media (max-width: 768px) {
  .header-container {
    padding: 0 var(--bh-sp-4);
    height: 60px;
  }

  .header-logo {
    overflow: hidden;
    width: 72px;
    height: 40px;
  }

  .menu-opened .header-logo {
    z-index: 1003;
  }

  .menu {
    display: none;
  }

  .top-menu-items {
    display: none;
  }

  .menu-opened .top-menu-items {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: fit-content;
  }

  .burger-menu {
    display: flex;
    order: 3;
  }

  .header-contacts {
    order: 2;
  }

  body.menu-opened {
    overflow-y: hidden;
  }

  .menu-opened .main-header {
    background-color: var(--bh-surface-card);
    backdrop-filter: none;
  }

  /* Burger animation */
  .menu-opened .burger-menu span {
    opacity: 1;
    transform: rotate(45deg) translate(-3px, -9px);
  }

  .menu-opened .burger-menu span:nth-last-child(3) {
    display: none;
  }

  .menu-opened .burger-menu span:nth-last-child(2) {
    transform: rotate(-45deg) translate(-6px, 12px);
  }

  /* Full-screen overlay menu */
  .menu-opened .menu {
    display: block;
    height: 100%;
    width: 100%;
    position: fixed;
    z-index: 1002;
    top: 60px;
    left: 0;
    background-color: var(--bh-surface-card);
    transition: 0.4s var(--bh-ease-out);
    overflow-x: hidden;
    overflow-y: auto;
  }

  .menu-opened .menu ul {
    margin: 0 var(--bh-sp-8);
    flex-direction: column;
  }

  .menu-opened .menu ul .level-2 {
    display: flex;
  }

  .menu-opened .menu li a {
    padding: var(--bh-sp-3) 0;
    color: var(--bh-text-primary);
    font-size: var(--bh-text-base);
  }

  .menu-opened #menu-top-menu {
    margin: 0 var(--bh-sp-8);
    padding-bottom: 200px;
  }

  .menu-opened .menu .submenu {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    position: relative;
    background-color: transparent;
    box-shadow: none;
    z-index: 101;
    padding: 0;
    border-radius: 0;
    top: unset;
    border: none;
  }
}