/* ============ Modern Header (Glass) ============ */

/* Плавные переходы для body */
body {
  transition: opacity 0.3s ease;
}

body.loaded {
  opacity: 1;
}

body.menu-open {
  overflow: hidden;
}

/* контейнер шапки */
.site-header{
  position: sticky; top: 0; z-index: 1000;
  background: var(--hd-bg);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border-bottom: 1px solid var(--hd-border);
  box-shadow: 0 4px 18px rgba(0,0,0,.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s ease;
  will-change: background, box-shadow, border-color, transform;
}

/* состояние при скролле */
.site-header.scrolled{
  background: var(--hd-bg-scrolled);
  box-shadow: var(--hd-shadow);
  border-bottom-color: rgba(255,255,255,.6);
}

/* основная линия */
.header-container{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
  padding: 20px 20px;
  max-width: 1400px;
  margin: 0 auto;
}

/* логотип */
.logo .site-logo{
  display: block;
  height: 60px; 
  width: auto;
  transition: transform 0.2s ease;
}

.logo .site-logo:hover{
  transform: scale(1.05);
}

/* бургер (на десктопе скрыт) */
.nav-toggle{
  display: none;
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  border: none;
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
  position: relative;
  z-index: 1001;
}

.nav-toggle:hover{
  background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.nav-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.3);
}

.nav-toggle .nav-toggle-bar{
  display: block; 
  width: 22px; 
  height: 2px; 
  background: white; 
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 1px;
}

.nav-toggle .nav-toggle-bar::before,
.nav-toggle .nav-toggle-bar::after{
  content: ""; 
  position: absolute; 
  left: 0; 
  width: 100%; 
  height: 2px; 
  background: white;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 1px;
}

.nav-toggle .nav-toggle-bar::before{ 
  top: -6px; 
  transform-origin: center;
}

.nav-toggle .nav-toggle-bar::after { 
  top: 6px; 
  transform-origin: center;
}

/* анимация бургера при открытии */
.nav-toggle[aria-expanded="true"] {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar{
  background: transparent;
  transform: rotate(180deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{
  transform: rotate(45deg) translate(4px, 4px);
  top: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{
  transform: rotate(-45deg) translate(4px, -4px);
  top: 0;
}

/* навигация */
.main-nav{ 
  justify-self: center;
  position: relative;
  display: flex;
  align-items: center;
  gap: 30px;
}

/* Декоративные элементы для меню */
.main-nav::before,
.main-nav::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, transparent, rgba(0, 123, 255, 0.3), transparent);
  transform: translateY(-50%);
}

.main-nav::before {
  left: -20px;
}

.main-nav::after {
  right: -20px;
}

.nav-menu{
  display: flex; 
  gap: 32px; 
  list-style: none; 
  margin: 0; 
  padding: 0;
}

.nav-menu > li > a{
  display: inline-block; 
  padding: 12px 16px;
  color: var(--hd-link); 
  text-decoration: none; 
  font-weight: 600;
  font-size: 15px;
  position: relative;
  transition: all 0.2s ease;
  border-radius: 8px;
}

.nav-menu > li > a:hover {
  background: rgba(0, 123, 255, 0.1);
}

.nav-menu > li > a::after{
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--brand);
  transition: width 0.3s ease;
  border-radius: 1px;
}

.nav-menu > li > a:hover{
  color: var(--hd-link-hover);
}

.nav-menu > li > a:hover::after{
  width: 80%;
}

/* Активное состояние */
.nav-menu > li.current-menu-item > a {
  color: var(--brand);
  background: rgba(0, 123, 255, 0.1);
}

.nav-menu > li.current-menu-item > a::after {
  width: 80%;
  background: var(--brand);
}

/* Подменю */
.nav-menu .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  padding: 10px 0;
  margin-top: 10px;
}

.nav-menu .menu-item-has-children {
  position: relative;
}

.nav-menu .menu-item-has-children:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-menu .sub-menu li {
  margin: 0;
}

.nav-menu .sub-menu a {
  display: block;
  padding: 12px 20px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-menu .sub-menu a::after {
  display: none;
}

.nav-menu .sub-menu a:hover {
  background: #f8f9fa;
  color: #007bff;
  padding-left: 30px;
}

.nav-menu .sub-menu a::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 2px;
  background: #007bff;
  transition: width 0.3s ease;
}

.nav-menu .sub-menu a:hover::before {
  width: 8px;
}

/* Dropdown icon */
.dropdown-icon {
  font-size: 10px;
  margin-left: 5px;
  transition: transform 0.3s ease;
}

.menu-item-has-children:hover .dropdown-icon {
  transform: rotate(180deg);
}

/* Действия в хедере */
.header-actions{ 
  justify-self: end; 
  display: flex;
  align-items: center;
  gap: 15px;
}

/* Кнопка контакта в навигации */
.header-contact-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  color: white;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
  white-space: nowrap;
}

.header-contact-btn:hover {
  background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
  color: white;
  text-decoration: none;
}

.header-contact-btn .contact-icon {
  font-size: 16px;
}

.header-contact-btn .contact-text {
  white-space: nowrap;
}

/* Анимация клика для кнопки контакта */
.header-contact-btn:active {
  transform: scale(0.95);
}

/* переключатель языков с флагами */

.lang-toggle{
  position: relative;
}

.lang-list{
  display: flex; 
  gap: 8px; 
  list-style: none; 
  margin: 0; 
  padding: 0;
}

.lang-item{
  position: relative;
}

.lang-item a{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 20px;
  color: var(--hd-link); 
  text-decoration: none; 
  font-weight: 600;
  font-size: 13px;
  transition: all 0.2s ease;
  min-width: 44px;
  justify-content: center;
}

.lang-item a:hover{
  background: rgba(255,255,255,.8);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
}

.lang-item.is-current a{
  background: var(--brand);
  color: white;
  border-color: var(--brand);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.lang-item.is-current a:hover{
  background: #0284c7;
  transform: translateY(-1px);
}

.flag-icon{
  font-size: 16px;
  line-height: 1;
}

.lang-code{
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ===== нижняя плашка с фильтрами ===== */
.filters-bar{
  display:block;
  background: rgba(255,255,255,.16);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-top: 1px solid rgba(255,255,255,.5);
  box-shadow: 0 6px 18px rgba(0,0,0,.06) inset;
}
.filters-bar .filter-menu{
  display:flex; flex-wrap: wrap; gap: 10px;
  list-style: none; margin: 10px auto; padding: 8px 16px;
  max-width: 1280px;
}
.filters-bar .filter-menu > li > a{
  display:inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--hd-pill-bg);
  border: 1px solid var(--hd-pill-border);
  color:#111; text-decoration:none; font-weight:600;
  transition: transform .12s ease, box-shadow .12s ease, color .12s ease;
  box-shadow: 0 4px 14px rgba(0,0,0,.06);
}
.filters-bar .filter-menu > li > a:hover{
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

/* ===== адаптив ===== */
@media (max-width: 1024px){
  .header-container{
    grid-template-columns: auto auto 1fr auto;
    gap: 16px;
    padding: 12px 16px;
  }
  
  .main-nav {
    justify-self: start;
    gap: 20px;
  }
  
  .main-nav::before,
  .main-nav::after {
    display: none;
  }
  
  .main-nav{
    position: fixed; 
    left: 0; 
    right: 0; 
    top: 70px;
    background: linear-gradient(135deg, rgba(255,255,255,0.98) 0%, rgba(248,249,250,0.95) 100%);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border-radius: 0 0 25px 25px;
    transform: translateY(-30px) scale(0.9);
    opacity: 0; 
    pointer-events: none; 
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity, visibility;
    z-index: 999;
    border: 1px solid rgba(255,255,255,0.2);
  }
  
  .main-nav.open{
    transform: translateY(0) scale(1);
    opacity: 1; 
    pointer-events: auto; 
    visibility: visible;
  }
  
  .nav-menu{
    flex-direction: column;
    padding: 25px 20px 10px;
    gap: 8px;
  }
  
  .nav-menu > li > a{
    display: block;
    padding: 16px 20px;
    font-size: 16px;
    border-radius: 12px;
    background: rgba(255,255,255,0.5);
    border: 1px solid rgba(0,0,0,0.05);
    transform: translateX(-20px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  }
  
  .nav-menu > li > a:hover {
    background: rgba(0, 123, 255, 0.1);
    transform: translateX(0) translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
  }
  
  .nav-menu > li:last-child > a{
    border-bottom: none;
  }
  
  /* Анимация появления пунктов меню */
  .main-nav.open .nav-menu > li > a{
    transform: translateX(0);
    opacity: 1;
  }
  
  .main-nav.open .nav-menu > li:nth-child(1) > a { transition-delay: 0.1s; }
  .main-nav.open .nav-menu > li:nth-child(2) > a { transition-delay: 0.15s; }
  .main-nav.open .nav-menu > li:nth-child(3) > a { transition-delay: 0.2s; }
  .main-nav.open .nav-menu > li:nth-child(4) > a { transition-delay: 0.25s; }
  
  /* Мобильные подменю */
  .nav-menu .sub-menu {
    position: static;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    border-radius: 0;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    padding: 0;
    margin: 0;
  }
  
  .nav-menu .sub-menu.show {
    opacity: 1;
    max-height: 300px;
    padding: 10px 0;
  }
  
  .nav-menu .sub-menu a {
    padding: 10px 20px;
    font-size: 14px;
    color: #333;
    background: rgba(255, 255, 255, 0.1);
    margin: 2px 10px;
    border-radius: 6px;
  }
  
  .nav-menu .sub-menu a:hover {
    background: rgba(255, 255, 255, 0.2);
    padding-left: 25px;
  }
  
  .nav-menu .sub-menu a::before {
    display: none;
  }
  
  .nav-toggle{ 
    display: block; 
  }
  
  .lang-list{
    gap: 6px;
  }
  
  .lang-item a{
    padding: 6px 10px;
    font-size: 12px;
    min-width: 40px;
  }
  
  .flag-icon{
    font-size: 14px;
  }
  
  .lang-code{
    font-size: 10px;
  }
  
  /* Кнопка контакта на мобильных */
  .header-contact-btn .contact-text {
    display: none;
  }
  
  .header-contact-btn {
    padding: 8px 12px;
    min-width: 44px;
    justify-content: center;
  }
  
  .header-contact-btn .contact-icon {
    font-size: 18px;
  }
  
  /* Кнопка контакта в мобильном меню */
  .main-nav .header-contact-btn {
    margin-top: 15px;
    justify-content: center;
    width: 100%;
    border-radius: 12px;
  }
}

@media (max-width: 768px){
  .header-container{
    gap: 12px;
    padding: 10px 16px;
  }
  
  .logo .site-logo{ 
    height: 50px; 
  }
  
  .nav-menu{
    padding: 16px 20px;
  }
  
  .nav-menu > li > a{
    padding: 14px 0;
    font-size: 15px;
  }
}

@media (max-width: 640px){
  .header-container{ 
    gap: 10px; 
    padding: 8px 12px;
  }
  
  .logo .site-logo{ 
    height: 45px; 
  }
  
  .main-nav{
    top: 70px;
  }
  
  .nav-menu{
    padding: 12px 16px;
  }
  
  .nav-menu > li > a{
    padding: 12px 0;
    font-size: 14px;
  }
  
  .lang-item a{
    padding: 5px 8px;
    min-width: 36px;
  }
  
  .flag-icon{
    font-size: 12px;
  }
  
  .lang-code{
    font-size: 9px;
  }
}