/* Общие стили */
html, body {
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #000000;
    font-family: Arial, Helvetica, sans-serif;
  }
  .logo-img {
    height: 72px;
    max-width: 160px;
    object-fit: contain;
    display: block;
  }
  .menu a {
    color: #000;
    text-decoration: none;
    transition: color 0.3s;
  }
  .buttons a {
    color: #000;
    text-decoration: none;
    transition: color 0.3s;
  }
  a:hover {
    color: #c00;
  }
  
  /* Бургер */
  .burger-menu {
    display: none;
    font-size: 1.8em;
    cursor: pointer;
    z-index: 1100;
  }
  
  /* Шапка */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 98%;
    padding: 15px 20px;
    background: #fff;
    border-bottom: 1px solid #ccc;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  header .logo {
    font-size: 1.5em;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  header nav ul {
    display: flex;
    margin: 0;
    padding: 0;
    list-style: none;
    align-items: center;
  }
  header nav li {
    margin-left: 20px;
    position: relative;
  }
  header nav a {
    font-weight: normal;
  }
  .auth-buttons {
    display: flex;
    gap: 10px;
    margin-left: 20px;
  }
  .sign-in, .register {
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
  }
  .register {
    background: #000;
    color: #fff;
    border: none;
  }
  
  /* Навигация */
  .nav-menu {
    display: flex;
  }
  .overlay {
    display: none;
  }
  
  /* Для мобильных */
  @media (max-width: 768px) {
    .burger-menu {
      display: block;
    }
    .nav-menu {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      width: 70%;
      height: 100%;
      background: #fff;
      padding: 30px 20px;
      box-shadow: -2px 0 8px rgba(0,0,0,0.3);
      z-index: 1050;
      overflow-y: auto;
      transition: 0.3s;
    }
    .nav-menu.open {
      display: block;
    }
    .nav-menu ul {
      flex-direction: column;
      align-items: flex-start;
      gap: 20px;
    }
    .left-section,
.right-section {
  position: static !important;
  top: auto !important;
}
  }
  
  /* Основная часть */
  main {
    margin-top: 70px;
    display: grid;
    grid-template-columns: 1fr 3fr 1fr;
    gap: 0px;
    padding: 20px 0px 20px 20px;
  }
  .left-section {
    align-items: start;
    text-align: left;
    width: 75%;
    position: sticky;
    top: 90px; /* чтобы не перекрывалось шапкой */
    align-self: start;
  }
  .center-section { text-align: left; width: 98%; }
  .right-section {
    align-items: end;
    text-align: left;
    width: 90%;
    position: sticky;
    top: 90px;
    align-self: start;
  }

  .img img {
    width: 100%;
  }
  
  /* Аккордеон */
  .faq-item {
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
  }
  .faq-question {
    background: #f5f5f5;
    padding: 10px;
    font-weight: bold;
    cursor: pointer;
    position: relative;
  }
  .faq-question::after {
    content: '▸';
    position: absolute;
    right: 10px;
    transition: transform 0.3s;
  }
  .faq-item.active .faq-question::after {
    content: '▾';
    transform: rotate(90deg);
  }
  .faq-answer {
    display: none;
    padding: 10px;
    background: #fafafa;
  }
  .faq-item.active .faq-answer {
    display: block;
  }
  
  
  /* Выделенные блоки */
  .highlight {
    background: #f9f9f9;
    border-left: 4px solid #d00;
    padding: 10px;
    margin: 15px 0;
  }
  
  /* Футер */
  footer {
    background: #fff;
    /* border-top: 1px solid #ccc; */
    padding: 40px 20px 20px;
    margin-top: 50px;
  }
  .footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 30px;
  }
  .footer-col {
    min-width: 150px;
    margin-bottom: 20px;
  }
  .footer-col h4 {
    font-weight: bold;
    margin-bottom: 10px;
  }
  .footer-col ul {
    list-style: none;
    padding: 0;
  }
  .footer-col li {
    margin-bottom: 8px;
  }
  .social-icons {
    display: flex;
    gap: 10px;
    margin-top: 10px;
  }
  .social-icons a {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 1px solid #ccc;
    border-radius: 5px;
    text-align: center;
    line-height: 32px;
    color: #000;
    font-size: 16px;
  }
  .footer-bottom {
    border-top: 1px solid #ccc;
    margin-top: 30px;
    padding-top: 20px;
    font-size: 14px;
    text-align: center;
  }
  
  /* Футер мобильный */
  @media (max-width: 768px) {
    header {
      width: 90% !important;
    }
    main {
      display: block;
    }
    .footer-top {
      flex-direction: column;
    }
  }