nav {
    display: flex;
    justify-content: space-between;
    max-width: 1440px;
    margin: auto;
  }
  nav ul {
    float: right;
    margin-right: 30px;
  }
  nav ul li {
    display: inline-block;
    float: left;
  }
  nav ul li:not(:first-child) {
    margin-left: 25px;
  }
  nav ul li a {
    display: inline-block;
    outline: none;
    color: #fff;
    font-size: 16px;
    text-decoration: none;
    letter-spacing: 0.04em;
  }
  nav ul li a:hover {
    color: #808080;
    text-decoration: none;
  }
  @media screen and (max-width: 1023px) {
    .nav-container {
      position: fixed;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      z-index: -1;
      background: #1f2227;
      opacity: 0;
      transition: all 0.2s ease;
    }
    .nav-container ul {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 100%;
    }
    .nav-container ul li {
      display: block;
      float: none;
      width: 100%;
      text-align: right;
      margin-bottom: 10px;
    }
    .nav-container ul li:nth-child(1) a {
      transition-delay: 0.2s;
    }
    .nav-container ul li:nth-child(2) a {
      transition-delay: 0.3s;
    }
    .nav-container ul li:nth-child(3) a {
      transition-delay: 0.4s;
    }
    .nav-container ul li:nth-child(4) a {
      transition-delay: 0.5s;
    }

    .nav-container ul li:nth-child(5) a {
        transition-delay: 0.6s;
      }

      .nav-container ul li:nth-child(6) a {
        transition-delay: 0.7s;
      }
    .nav-container ul li:not(:first-child) {
      margin-left: 0;
    }
    .nav-container ul li a {
      padding: 10px 25px;
      opacity: 0;
      color: #fff;
      font-size: 24px;
      font-weight: 600;
      transform: translateY(-20px);
      transition: all 0.2s ease;
    }
    .nav-open {
      position: fixed;
      right: 10px;
      top: 10px;
      display: block;
      width: 48px;
      height: 48px;
      cursor: pointer;
      z-index: 9999;
      border-radius: 50%;
    }
    .nav-open i {
      display: block;
      width: 20px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      margin-left: 14px;
    }
    .nav-open i:nth-child(1) {
      margin-top: 16px;
    }
    .nav-open i:nth-child(2) {
      margin-top: 4px;
      opacity: 1;
    }
    .nav-open i:nth-child(3) {
      margin-top: 4px;
    }
  }
  #nav:checked + .nav-open {
    transform: rotate(45deg);
  }
  #nav:checked + .nav-open i {
    background: #fff;
    transition: transform 0.2s ease;
  }
  #nav:checked + .nav-open i:nth-child(1) {
    transform: translateY(6px) rotate(180deg);
  }
  #nav:checked + .nav-open i:nth-child(2) {
    opacity: 0;
  }
  #nav:checked + .nav-open i:nth-child(3) {
    transform: translateY(-6px) rotate(90deg);
  }
  #nav:checked ~ .nav-container {
    z-index: 9990;
    opacity: 1;
  }
  #nav:checked ~ .nav-container ul li a {
    opacity: 1;
    transform: translateY(0);
  }
  .hidden {
    display: none;
  }