student/ISIP22-Obukhov-Galaeva/css/header.scss

header {
  padding: 0 !important;

  .top-nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    color: #000;
    height: 100px;
    padding: 1em;
  }

  .menu {
    display: flex;
    flex-direction: row;
    list-style-type: none;
    margin: 0;
    padding: 0;

    a {
      color: #000;
      text-decoration: none;

      &:hover {
        text-decoration: underline;
      }
    }
  }

  .menu > li {
    margin: 0 1rem;
    overflow: hidden;
  }

  .menu-button-container {
    display: none;
    height: 100%;
    width: 30px;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  #menu-toggle {
    display: none;
  }

  .menu-button,
  .menu-button::before,
  .menu-button::after {
    display: block;
    background-color: #000;
    position: absolute;
    height: 4px;
    width: 30px;
    transition: transform 1s cubic-bezier(0.23, 1, 0.32, 1);
    border-radius: 2px;
  }

  .menu-button::before {
    content: "";
    margin-top: -8px;
  }

  .menu-button::after {
    content: "";
    margin-top: 8px;
  }

  #menu-toggle:checked + .menu-button-container .menu-button::before {
    margin-top: 0px;
    transform: rotate(405deg);
  }

  #menu-toggle:checked + .menu-button-container .menu-button {
    background: rgba(255, 255, 255, 0);
  }

  #menu-toggle:checked + .menu-button-container .menu-button::after {
    margin-top: 0px;
    transform: rotate(-405deg);
  }

  @media (max-width: 700px) {
    .menu-button-container {
      display: flex;
    }
    .menu {
      position: absolute;
      top: 50px;
      margin-top: 50px;
      left: 0;
      flex-direction: column;
      width: 100%;
      justify-content: center;
      align-items: center;

      li {
        display: flex;
        justify-content: center;
        align-items: center;

        a {
          color: #fff !important;
        }
      }
    }
    #menu-toggle ~ .menu li {
      height: 0;
      margin: 0;
      padding: 0;
      border: 0;
      transition: height 400ms cubic-bezier(0.23, 1, 0.32, 1);
    }
    #menu-toggle:checked ~ .menu li {
      border: 1px solid #333;
      height: 2.5em;
      padding: 0.5em;
      transition: height 400ms cubic-bezier(0.23, 1, 0.32, 1);
    }
    .menu > li {
      display: flex;
      justify-content: center;
      margin: 0;
      padding: 0.5em 0;
      width: 100%;
      background-color: #222;
    }
    .menu > li:not(:last-child) {
      border-bottom: 1px solid #444;
    }
  }
}