@media (max-width: 768px) {
  .header {
    position: sticky;
    top: 0;
    z-index: 2;
    background: white;
    margin: 0;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }

  .header__container {
    margin: 0;
  }

  .header__menu-toggle {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: white;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    padding: 80px 30px 30px;
    transition: right 0.4s ease;
    z-index: 2;
    overflow-y: auto;
    margin: 0;
  }

  .header__nav.active {
    right: 0;
  }

  .header__menu-close {
    display: flex;
  }

  .header__navigation-list {
    flex-direction: column;
    gap: 0;
    border-top: none;
    padding: 0;
    margin: 0;
  }

  .header__navigation-item {
    width: 100%;
  }

  .header__navigation-link {
    display: block;
    width: 100%;
    padding: 15px 0;
    font-size: 18px;
    border-bottom: 1px solid #eee;
  }

  .header__navigation-link:hover,
  .header__navigation-link.active {
    background: transparent;
    color: rgba(42, 37, 75);
    padding-left: 10px;
  }

  .header__nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
  }

  .header__nav-overlay.active {
    display: block;
  }
}

@media (max-width: 768px) {
  .scroll-top {
    width: 52px;
    height: 52px;
    bottom: 20px;
    right: 20px;
    font-size: 22px;
  }
}

@media (max-width: 480px) {
  .header__nav {
    width: 100%;
  }
}