/* ==========================================================================
   АДАПТИВНЫЕ СТИЛИ ДЛЯ МОБИЛЬНЫХ (БЕЗ ИЗМЕНЕНИЯ ПК ВЕРСИИ)
   ========================================================================== */

/* Базовые улучшения (не влияют на ПК дизайн) */
* {
  box-sizing: border-box;
}

img {
  max-width: 100%;
  height: auto;
}

/* Кнопка мобильного меню (скрыта на ПК) */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  position: relative;
  z-index: 1001;
}

.burger-line {
  width: 24px;
  height: 2px;
  background-color: #1f68bb;
  background-color: #1f68bb;
  margin: 2px 0;
  transition: all 0.3s ease;
  border-radius: 1px;
}

.mobile-menu-btn-open .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn-open .burger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn-open .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Skip link для доступности */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #1f68bb;
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 2000;
  font-size: 14px;
}

.skip-link:focus {
  top: 6px;
}

/* Утилитарные классы */
.hide-mobile {
  display: block;
}

.show-mobile {
  display: none;
}

/* ==========================================================================
   ПЛАНШЕТЫ (768px - 1024px)
   ========================================================================== */
@media screen and (min-width: 768px) and (max-width: 1024px) {
  
  .header-container,
  .start-container,
  .main-container,
  .process-container,
  .stats-container,
  .partners-container,
  .repairs-container,
  .map-container,
  .footer-container,
  .contacts-container,
  .elec-container,
  .price-container {
    max-width: 100%;
    padding: 0 32px;
  }
  
  .main .icons-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .partners-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .stats-container ul {
    grid-template-columns: repeat(2, 1fr);
  }
  
  footer .nav-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .process-items {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .price-items {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ==========================================================================
   МОБИЛЬНЫЕ УСТРОЙСТВА (до 768px)
   ========================================================================== */
@media screen and (max-width: 767px) {
  
  /* Показываем кнопку мобильного меню */
  .mobile-menu-btn {
    display: flex !important
  }
  
  .hide-mobile {
    display: none;
  }
  
  .show-mobile {
    display: block;
  }

  /* HEADER */
  header {
    padding: 8px 16px;
    transition: transform 0.3s ease;
  }
  
  .header-container {
    max-width: 100%;
    padding: 0;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .header-container ul {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    font-size: 18px;
    font-weight: 600;
    z-index: 1000;
    
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    opacity: 0;
    visibility: hidden;
  }
  
  .header-container ul.mobile-nav-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }
  
  .header-container ul li {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
  }
  
  .header-container ul.mobile-nav-open li {
    opacity: 1;
    transform: translateY(0);
  }
  
  .header-container ul.mobile-nav-open li:nth-child(1) { transition-delay: 0.1s; }
  .header-container ul.mobile-nav-open li:nth-child(2) { transition-delay: 0.2s; }
  .header-container ul.mobile-nav-open li:nth-child(3) { transition-delay: 0.3s; }
  .header-container ul.mobile-nav-open li:nth-child(4) { transition-delay: 0.4s; }
  
  .header-container ul a {
    display: block;
    padding: 12px 20px;
    color: #2d2d2a;
    border-radius: 8px;
    transition: all 0.2s ease;
    min-width: 200px;
    text-align: center;
  }
  
  .header-container ul a:hover,
  .header-container ul a:focus {
    background: #f0f8ff;
    color: #1f68bb;
    transform: translateY(-2px);
  }
  
  .logo-link {
    z-index: 1001;
    position: relative;
  }
  
  .logo-link svg {
    width: 70px;
  }

  /* START SECTION */
  .start {
    padding: 100px 16px 40px;
  }
  
  .start-container {
    max-width: 100%;
    padding: 0;
    block-size: auto;
    min-height: 400px;
    padding-bottom: 40px;
    text-align: center;
    align-content: start;
    padding-top: 20px;
  }
  
  .start-container img {
    position: relative;
    transform: none;
    max-width: 100%;
    margin-bottom: 20px;
    order: -1;
  }
  
  .start-container .text {
    mix-blend-mode: normal;
  }
  
  .header-text,
  .header-text_small {
    font-size: 2.5rem;
    line-height: 1.1;
    text-align: center;
    color: #2d2d2a;
  }
  
  .header-text_small {
    color: #e09744;
  }
  
  .start-container .buttons {
    flex-direction: column;
    gap: 12px;
    margin-top: 30px;
  }
  
  .start-container button {
    min-width: 100%;
    min-height: 48px;
    font-size: 16px;
  }
  
  .start-undertext {
    margin-top: 30px;
    padding: 1.5rem;
    font-size: 14px;
    max-width: 100%;
  }

  /* MAIN SECTION */
  .main {
    padding: 40px 16px;
  }
  
  .main-container {
    max-width: 100%;
    padding: 0;
  }
  
  h2 {
    font-size: 2rem;
    margin-bottom: 16px;
  }
  
  .main-header-text {
    font-size: 1rem;
    max-width: 100%;
    padding: 0;
  }
  
  .main .icons-container {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 40px;
  }
  
  .main svg {
    width: 40px;
    height: 40px;
  }
  
  .icons-header {
    font-size: 1.1rem;
    padding: 8px 0 16px 0;
  }

  /* PROCESS SECTION */
  .process {
    padding: 40px 16px;
  }
  
  .process-container {
    max-width: 100%;
    padding: 0;
    flex-direction: column;
  }
  
  .process-container img {
    max-width: 100%;
    margin-bottom: 30px;
  }
  
  .process-items {
    flex-direction: column;
    gap: 12px;
    margin-top: 30px;
    align-items: stretch;
  }
  
  .process-items li {
    flex-direction: column;
    align-items: stretch;
  }
  
  .process-items li svg {
    display: none;
  }
  
  .process-items button {
    width: 100%;
    padding: 12px 16px;
    text-align: center;
    font-size: 16px;
  }
  
  .process-block {
    margin-top: 20px;
    padding: 1.5rem;
  }
  
  .process-block-info ul {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 20px;
  }

  /* STATS SECTION */
  .stats {
    padding: 40px 16px;
  }
  
  .stats-container {
    max-width: 100%;
    padding: 0;
  }
  
  .stats-container ul {
    grid-template-columns: 1fr;
    gap: 30px;
    margin: 30px 0;
  }
  
  .stats-item {
    padding: 0;
    text-align: center;
  }
  
  .stats-item:not(:first-child) {
    border-left: none;
    border-top: 1px solid rgb(139, 135, 151);
    padding: 20px 0 0 0;
  }
  
  .stats-item p:first-of-type {
    font-size: 2.5rem;
  }

  /* PARTNERS SECTION */
  .partners {
    padding: 60px 16px;
  }
  
  .partners-container {
    max-width: 100%;
    padding: 0;
  }
  
  .partners-header-text {
    font-size: 2rem;
  }
  
  .partners-text {
    font-size: 16px;
  }
  
  .partners-cards {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
  }
  
  .partners-cards_img-container {
    height: 200px;
  }
  
  .partners-cards_header {
    font-size: 1.25rem;
  }

  /* REPAIRS SECTION */
  .repairs {
    padding: 40px 16px;
  }
  
  .repairs-container {
    max-width: 100%;
    padding: 0;
    flex-direction: column-reverse;
    gap: 30px;
  }
  
  .repairs-img {
    max-width: 100%;
  }
  
  .repairs-header {
    text-align: center;
    font-size: 2rem;
    margin: 0;
  }
  
  .repairs-text {
    text-align: center;
    max-width: 100%;
  }
  
  .repairs-list {
    justify-content: center;
    margin-top: 30px;
  }
  
  .repairs-footer {
    justify-content: center;
  }

  /* MAP SECTION */
  .map {
    margin: 60px 0;
    padding: 20px 16px;
  }
  
  .map-container {
    max-width: 100%;
    padding: 0;
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .map-container iframe {
    width: 100%;
    height: 300px;
  }
  
  .map-info_header {
    font-size: 2rem;
  }

  /* FOOTER */
  footer {
    padding: 60px 16px;
  }
  
  .footer-container {
    max-width: 100%;
    padding: 0;
  }
  
  footer .nav-list {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }
  
  .footer-reserved {
    margin-top: 50px;
  }
  
  .footer-inn {
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
  }

  /* MODAL */
  .modal-content {
    width: 90%;
    margin: 20% auto;
    padding: 30px 20px;
  }
  
  .modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
  }
  
  .modal-content p {
    font-size: 14px;
    line-height: 1.4;
  }

  /* CONTACTS PAGE */
  .contacts-main {
    padding: 100px 16px 0;
  }
  
  .contacts-container {
    max-width: 100%;
    padding: 0;
  }
  
  .contacts-info {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 40px;
  }
  
  .contacts-info p {
    font-size: 14px;
    line-height: 1.4;
  }

  /* SERVICES PAGE */
  .price {
    padding: 100px 16px 60px;
  }
  
  .price-container {
    max-width: 100%;
    padding: 0;
  }
  
  .price-items {
    flex-direction: column;
    gap: 8px;
    margin-top: 40px;
  }
  
  .price-items li {
    flex-direction: column;
  }
  
  .price-items li svg {
    display: none;
  }
  
  .price-items button {
    width: 100%;
    padding: 12px 16px;
    text-align: center;
    font-size: 16px;
  }
  
  .price-table {
    width: 100%;
    font-size: 14px;
    margin: 40px auto 0;
  }
  
  .price-table th,
  .price-table td {
    padding: 8px 6px;
    font-size: 13px;
  }
  
  .price-description {
    font-size: 14px;
    line-height: 1.4;
  }
  
  .costs-undertext {
    font-size: 12px;
    margin-top: 20px;
  }

  /* ELECTRONICS PAGE */
  .elec {
    padding: 100px 16px 60px;
  }
  
  .elec-container {
    max-width: 100%;
    padding: 0;
  }
  
  .elec-additions {
    margin: 60px 0 0 0;
  }
  
  .elec-additions_item {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 30px;
    padding: 1.5rem;
  }
  
  .item-img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
  }
  
  .item-text {
    font-size: 14px;
    line-height: 1.4;
  }

  /* PARTNERS PAGE */
  .partners-title {
    margin: 60px 0 40px 0;
    font-size: 2rem;
  }

}

/* ==========================================================================
   ОЧЕНЬ МАЛЕНЬКИЕ ЭКРАНЫ (до 480px)
   ========================================================================== */
@media screen and (max-width: 479px) {
  
  .header-text,
  .header-text_small {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .partners-header-text,
  .repairs-header,
  .map-info_header {
    font-size: 1.75rem;
  }
  
  .stats-item p:first-of-type {
    font-size: 2rem;
  }
  
  .start-container {
    min-height: 350px;
  }
  
  .process-block,
  .start-undertext {
    padding: 1rem;
  }
  
  .price-table th,
  .price-table td {
    padding: 6px 4px;
    font-size: 12px;
  }
  
  .modal-content {
    margin: 10% auto;
    padding: 20px 16px;
  }
  
}

/* ==========================================================================
   TOUCH УСТРОЙСТВА
   ========================================================================== */
@media (hover: none) and (pointer: coarse) {
  
  button,
  a {
    min-height: 44px;
    min-width: 44px;
  }
  
  .process-items button,
  .price-items button {
    padding: 12px 16px;
  }
  
  button:active {
    transform: scale(0.98);
  }
  
}

/* ==========================================================================
   ТЕМНАЯ ТЕМА
   ========================================================================== */
@media (prefers-color-scheme: dark) and (max-width: 767px) {
  .header-container ul {
    background: rgba(45, 45, 42, 0.98);
    color: #fff;
  }
  
  .header-container ul a {
    color: #fff;
  }
  
  .header-container ul a:hover,
  .header-container ul a:focus {
    background: rgba(31, 104, 187, 0.2);
    color: #9bcaff;
  }
  
  .burger-line {
    background-color: #1f68bb;
  }
}

/* ==========================================================================
   АНИМАЦИИ И ПЕРЕХОДЫ
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .header-container ul,
  .header-container ul li,
  .burger-line {
    transition: none;
  }
}

/* ==========================================================================
   ЛАНДШАФТНАЯ ОРИЕНТАЦИЯ НА МОБИЛЬНЫХ
   ========================================================================== */
@media screen and (max-width: 767px) and (orientation: landscape) {
  .header-container ul {
    padding: 20px 0;
    justify-content: flex-start;
    padding-top: 80px;
  }
  
  .header-container ul li {
    margin: 8px 0;
  }
  
  .start-container {
    min-height: 300px;
  }
  
  .header-text,
  .header-text_small {
    font-size: 2rem;
  }
}

/* ==========================================================================
   ВЫСОКАЯ ПЛОТНОСТЬ ПИКСЕЛЕЙ
   ========================================================================== */
@media only screen and (-webkit-min-device-pixel-ratio: 2),
       only screen and (min--moz-device-pixel-ratio: 2),
       only screen and (-o-min-device-pixel-ratio: 2/1),
       only screen and (min-device-pixel-ratio: 2),
       only screen and (min-resolution: 192dpi),
       only screen and (min-resolution: 2dppx) {
  
  .logo-link svg {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}