* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: "ROBOTO", sans-serif;
  }
  
  .nav,
  .slider {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    position: relative;
    background-color: #020835;
    background-image: url("https://images.pexels.com/photos/920534/pexels-photo-920534.jpeg?auto=compress&cs=tinysrgb&w=1600") ;
    background-position: top;
    background-size: 100%;
    text-align: center;

    padding: 0 2em;
  }
  
  .nav h1,
  .slider h1 {
    font-family: "Josefin Sans", sans-serif;
    font-size: 5vw;
    margin: 0;
    padding-bottom: 0.5rem;
    letter-spacing: 0.5rem;
    color: #0396da;
    transition: all 0.3s ease;
    z-index: 3;
  }
  h1:hover {
    transform: translate3d(0, -10px, 22px);
    color: #ff0224;
  }
  
  .slider h2 {
    font-size: 2vw;
    letter-spacing: 0.3rem;
    font-family: "ROBOTO", sans-serif;
    font-weight: 300;
    color: #faebd7;
    z-index: 4;
  }
  h3.span {
    font-size: 2vw;
    letter-spacing: 0.7em;
    font-family: "ROBOTO", sans-serif;
    font-weight: 300;
    color: #faebd7;
    z-index: 4;
  }
  span:hover {
    color: #ff0224;
    font-weight: 500;
    font-size: 2.2vw;
  }
  
  a {
    text-decoration: none;
  }
  
  .nav-container {
    display: flex;
    flex-direction: row;
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 75px;
    box-shadow: 20px 20px 50px rgba(0, 0, 0, 0.5);
    background: #020835;
    
    z-index: 10;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
  }
  
  .nav-container--top-first {
    position: fixed;
    top: 75px;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
  }
  
  .nav-container--top-second {
    position: fixed;
    top: 0;
  }
  .nav-tab {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    color: #0396da;
    letter-spacing: 0.1rem;
    transition: all 0.5s ease;
    font-size: 2vw;
  }
  
  .nav-tab:hover {
    color: #1e1f26;
    background: #0396da;
    transition: all 0.5s ease;
  }
  
  .nav-tab-slider {
    position: absolute;
    bottom: 0;
    width: 0;
    height: 2px;
    background: #0396da;
    transition: left 0.3s ease;
  }
  .background {
    position: absolute;
    height: 90vh;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: auto;
  }
  @media (min-width: 800px) {
    .nav h1,
    .slider h1 {
      font-size: 5vw;
    }
  
    .nav h2,
    .slider h2 {
      font-size: 3vw;
    }
  
    .nav-tab {
      font-size: 3vw;
    }
  }
  
  @media (min-width: 360px)  {
    .nav h1,
    .slider h1 {
      font-size: 8vw;
    }
  
    .nav h2,
    .slider h2 {
      font-size: 2vw;
      letter-spacing: 0.2vw;
    }
  
    .nav-tab {
      font-size: 1.2vw;
    }
  }
  
  .background {
    position: absolute;
    height: 100vh;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 0;
  }
  .loader span {
    color: #faebd7;
    text-shadow: 0 0 0 #faebd7;
    -webkit-animation: loading 1s ease-in-out infinite alternate;
  }
  
  @-webkit-keyframes loading {
    to {
      text-shadow: 20px 0 70px #ff0224;
      color: #ff0224;
    }
  }
  .loader span:nth-child(2) {
    -webkit-animation-delay: 0.1s;
  }
  .loader span:nth-child(3) {
    -webkit-animation-delay: 0.2s;
  }
  .loader span:nth-child(4) {
    -webkit-animation-delay: 0.3s;
  }
  .loader span:nth-child(5) {
    -webkit-animation-delay: 0.4s;
  }
  .loader span:nth-child(6) {
    -webkit-animation-delay: 0.5s;
  }
  .loader span:nth-child(7) {
    -webkit-animation-delay: 0.6s;
  }
  .loader span:nth-child(8) {
    -webkit-animation-delay: 0.7s;
  }
  .loader span:nth-child(9) {
    -webkit-animation-delay: 0.8s;
  }
  
  .loader span:nth-child(10) {
    -webkit-animation-delay: 0.9s;
  }
  .loader span:nth-child(11) {
    -webkit-animation-delay: 1s;
  }
  .loader span:nth-child(12) {
    -webkit-animation-delay: 1.1s;
  }
  .loader span:nth-child(13) {
    -webkit-animation-delay: 1.2s;
  }
  .loader span:nth-child(14) {
    -webkit-animation-delay: 1.3s;
  }
  .loader span:nth-child(15) {
    -webkit-animation-delay: 1.4s;
  }
  .loader span:nth-child(16) {
    -webkit-animation-delay: 1.5s;
  }
  .loader span:nth-child(17) {
    -webkit-animation-delay: 1.6s;
  }
  .loader span:nth-child(18) {
    -webkit-animation-delay: 1.7s;
  }
  .loader span:nth-child(19) {
    -webkit-animation-delay: 1.8s;
  }
  .loader span:nth-child(20) {
    -webkit-animation-delay: 1.9s;
  }
  .loader span:nth-child(21) {
    -webkit-animation-delay: 2s;
  }
  .loader span:nth-child(22) {
    -webkit-animation-delay: 2.1s;
  }