*, *::before, *::after {
    box-sizing:border-box;
  }
  
  body {
    text-align: center;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    margin: 0;
    /*font-family: 'Berghan Free', sans-serif;*/
    
  }
  
  .main {
    background-color: black;
    padding: 5px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    flex-direction: column;
  }
  
  .main::before, .main::after {
    content: "";
    position: absolute;
    top: 19.6rem;
    aspect-ratio: 1;
    width: 120px;
  }

  .main::before {
    left: 0;
    background: radial-gradient(circle at 100% 0%, transparent 71%, gray 0);
  }

  .main::after {
    right: 0;
    background: radial-gradient(circle at 0% 0%, transparent 71%, gray 0);
  }

  .icon {
    border-radius: 50%;
  }
  
  .Frontinfo {
    font-size: 30px;
    padding: 0px;
    margin: 0;
    color: white;
  }
  
  span {
    width: 25%;
    height: 1%;
    background-color: white;
    display: block;
    position: absolute;
    top: 23rem;
    left: 78rem;
  }
  
  div > .Frontinfo > p {
    font-size: 30px;
    padding: 0;
    line-height: 0px;
  }
  
  .BasicInfo {
    margin: 0;
    display: flex;
    gap: 50px;
    background-color: grey;
    justify-content: center;
    font-size: 40px;
    font-weight: bold;
    padding: 0;
  }

  .BasicInfo::before, .BasicInfo::after {
    content: "";
    position: absolute;
    top: 35rem;
    aspect-ratio: 1;
    width: 120px;
  }

  .BasicInfo::before {
    left: 0;
    background: radial-gradient(circle at 100% 100%, transparent 71%, gray 0);
  }

  .BasicInfo::after {
    right: 0;
    background: radial-gradient(circle at 0% 100%, transparent 71%, gray 0) 100% 0/100% 100%;
  }
  
  nav > ul {
    display: flex;
    justify-content: center;
    text-align: center;
    padding: 0 0 0 5px;
    gap: 100px;
    list-style-type: none;
  }

  nav > ul > li a {
    text-decoration: none;
    color: black;
    border: none;
    padding: .1em 1em;
    border-radius: 100px;
    cursor: pointer;
    transition: 200ms ease;
  }

  nav > ul > li a:hover{
    padding: .8em 1em;
    background-color: white;
    scale: 2;
  }
  
  .content {
    width: min(1300px, 100% - 3em);
    margin-inline: auto;
    padding-block: 1em;
  }
  
  div > .content > div > p {
    font-size: 50px;
    font-weight: bold;
    padding: 0;
    line-height: 0px;
    color: black;
  }
  
  .credits {
    position: absolute;
    min-height: 300px;
    left: 0px;
    background-color: black;
  }
  
  .videos {
    display: flex;
    flex-direction: column;
    gap: 1em;
  }
  
  video {
    aspect-ratio: auto 16/9;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    width: 100%;
  }
  
  footer {
    color: white;
    font-size: 50px;
    padding: 0;
    background-color: black;
    min-height: 300px;
    margin-top: auto;
    transition: 150ms ease;
  }
  
  footer::before, footer::after {
    content: "";
    position: absolute;
    top: 199rem;
    aspect-ratio: 1;
    width: 120px;
  }

  footer::before {
    left: 0;
    background: radial-gradient(circle at 100% 0%, transparent 71%, black 0);
  }

  footer::after {
    right: 0;
    background: radial-gradient(circle at 0% 0%, transparent 71%, black 0);
  }

  footer > a {
    color: grey;
    font-size: 40px;
    transition: 229ms ease;
  }

  footer > a:hover {
    font-size: 60px;
    scale: 3;
    color: red;
  }

@media (min-width: 300px) and (max-width: 320px) {
  .Frontinfo {
    font-size: 20px;
  }

  .main::before, .main::after {
    top: 21.6rem;
    width: 30px;
  }

  div > .Frontinfo > p {
    font-size: 20px;
  }
  
  span {
    top: 20.6rem;
    left: 5rem;
    width: 50%;
    height: 0.5%;
  }

  div > .content > div > p {
    font-size: 20px;
  }
  .BasicInfo {
    font-size: 12px;
  }

  .BasicInfo::before, .BasicInfo::after {
    top: 25.8rem;
    width: 30px;
  }

  nav > ul {
    gap: 20px;
  }

  nav > ul > li a {
    padding: .05em .05em;
  }

  nav > ul > li a:hover {
    padding: .08em .08em;
  }

  footer {
    font-size: 20px;
    min-height: 30px;
  }

  footer::before, footer::after {
    top: 68.5rem;
    width: 30px;
  }

  footer > a {
    font-size: 20px;
  }
}

@media (min-width: 321px) and (max-width: 374px) {
  .Frontinfo {
    font-size: 20px;
  }

  .main::before, .main::after {
    top: 21.6rem;
    width: 30px;
  }

  div > .Frontinfo > p {
    font-size: 20px;
  }
  
  span {
    top: 20rem;
    left: 6rem;
    width: 50%;
    height: 0.5%;
  }

  div > .content > div > p {
    font-size: 20px;
  }
  .BasicInfo {
    font-size: 12px;
  }

  .BasicInfo::before, .BasicInfo::after {
    top: 25.9rem;
    width: 30px;
  }

  nav > ul {
    gap: 20px;
  }

  nav > ul > li a {
    padding: .05em .05em;
  }

  nav > ul > li a:hover {
    padding: .08em .08em;
  }

  footer {
    font-size: 20px;
    min-height: 30px;
  }

  footer::before, footer::after {
    top: 71.6rem;
    width: 30px;
  }

  footer > a {
    font-size: 20px;
  }
}


@media (min-width: 375px) and (max-width: 419px) {
  .Frontinfo {
    font-size: 20px;
  }

  .main::before, .main::after {
    top: 21.6rem;
    width: 30px;
  }

  div > .Frontinfo > p {
    font-size: 20px;
  }
  
  span {
    top: 20rem;
    left: 6rem;
    width: 50%;
    height: 0.5%;
  }

  div > .content > div > p {
    font-size: 20px;
  }

  .BasicInfo {
    font-size: 12px;
  }

  .BasicInfo::before, .BasicInfo::after {
    top: 25.6rem;
    width: 30px;
  }

  nav > ul {
    gap: 20px;
  }

  nav > ul > li a {
    padding: .05em .05em;
  }

  nav > ul > li a:hover {
    padding: .08em .08em;
  }

  footer {
    font-size: 20px;
    min-height: 30px;
  }

  footer > a {
    font-size: 20px;
  }

  footer::before, footer::after {
    top: 72.6rem;
    width: 30px;
  }
}

@media (min-width: 420px) and (max-width: 599px) {

  .Frontinfo {
    font-size: 15px;
  }

  .main {
    flex-direction: column;
  }

  .main::before, .main::after {
    top: 19.6rem;
    width: 30px;
  }
  
  .BasicInfo {
    font-size: 20px;
    display: flex;
    justify-content: center;
    text-align: center;
  }

  nav > ul > li {
    font-size: 15px;
  }

  nav > ul > li a {
    padding: .1em 1em;
    border-radius: 100px;
    cursor: pointer;
    transition: 200ms ease;
  }

  nav > ul > li a:hover{
    padding: .8em 1em;
    background-color: white;
    scale: 2;
  }
  
  .BasicInfo::before, .BasicInfo::after {
    top: 25rem;
    width: 30px;
  }

  span {
    top: 19rem;
    left: 6.5rem;
    width: 50%;
    height: 0.5%;
  }

  div > .Frontinfo > p {
    font-size: 15px;
  }

  nav > ul {
    padding: 0 0 0 5px;
    gap: 15px;
    list-style-type: none;
  }

  footer {
    font-size: 20px;
    min-height: 100px;
  }

  footer::before, footer::after {
    top: 80.1rem;
    width: 40px;
  }

  footer > a {
    font-size: 20px;
  }

  footer > a:hover {
    font-size: 40px;
  }
}


@media (min-width: 600px) and (max-width: 900px) {
    .main {
      flex-direction: column;
    }

    .Frontinfo {
        font-size: 20px;
    }
    
    .main::before, .main::after {
      top: 19.2rem;
      width: 70px;
    }
    
    span {
        top: 20.5rem;
        left: 14.5rem;
        width: 300px;
        height: 8px; 
    }

    .BasicInfo {
      font-size: 20px;
    }

    .BasicInfo::before, .BasicInfo::after {
      top: 27.4rem;
      width: 70px;
    }

    nav > ul > li a {
      font-size: 15.1px;
    }

    div > .Frontinfo > p {
        font-size: 20px;
        top: 10px;
    }
    
    div > .content > div > video {
      width: 540px;
      height: 400px;
    }

    footer {
        font-size: 35px;
        min-height: 150px;
    }

    footer::before, footer::after{
      top: 134.5rem;
      width: 70px;
    }
}

@media (min-width: 901px) and (max-width: 1099px) {
  .Frontinfo {
     font-size: 30px;
    }

    .main::before, .main::after {
      top: 22.7rem;
      width: 70px;
    }

    .main::before {
      left: 0px;
    }

    .main::after {
      right: 0px;
    }

    nav > ul {
      gap: 30px;
    }

    nav > ul > li a {
      font-size: 30px;
    }

    span {
        width: 400px;
        height: 10px;
        top: 360px;
        left: 320px;
    }
    
    .BasicInfo::before, .BasicInfo::after {
      top: 35rem;
      width: 100px;
    }

    .BasicInfo::before{
      left: 0px;
    }

    .BasicInfo::after{
      right: 0px;
    }

    div > .Frontinfo > p {
        font-size: 30px;
        top: 10px;
    }

    .videos {
      width: 960px;
    }

    footer {
      font-size: 50px;
      min-height: 20px;
    }

    footer::before, footer::after {
      top: 159.7rem;
      width: 70px;
    }

    footer::before {
      left: 0px;
    }

    footer::after {
      right: 0px;
    }
    
}

@media (min-width: 1100px) and (max-width: 1799px){
  .Frontinfo {
    font-size: 30px;
   }

   .main::before, .main::after {
     top: 22.2rem;
     width: 80px;
   }

   .main::before {
     left: 0px;
   }

   .main::after {
     right: 0px;
   }

   span {
    position: absolute;
    top: 22.3rem;
    left: 16.5em;
    width: 29rem;
}
   nav > ul {
     gap: 30px;
   }

   nav > ul > li a {
     font-size: 30px;
   }
   
   .BasicInfo::before, .BasicInfo::after {
     top: 35rem;
     width: 100px;
   }

   .BasicInfo::before{
     left: 0px;
   }

   .BasicInfo::after{
     right: 0px;
   }

   div > .Frontinfo > p {
       font-size: 30px;
       top: 10px;
   }

   footer {
     font-size: 50px;
   }

   footer::before, footer::after {
     top: 201rem;
     width: 80px;
   }

   footer::before {
     left: 0px;
   }

   footer::after {
     right: 0px;
   }
  
}

/*1920x1080*/
@media (min-width: 1800px) and (max-width: 1900px){

  .main::before, .main::after {
    top: 34.2%;
    width: 100px;
  }

  .main::before {
    left: 0px;
  }

  .main::after {
    right: 0px;
  }

  span {
      position: absolute;
      top: 22.3rem;
      left: 43.5rem;
      width: 29rem;
  }

  .BasicInfo::before, .BasicInfo::after {
    top: 57.5%;
    width: 100px;
  }

  .BasicInfo::before{
    left: 0px;
  }

  .BasicInfo::after{
    right: 0px;
  }

  footer::before, footer::after {
    top: 329.8%;
    width: 80px;
  }

  footer::before {
    left: 0px;
  }

  footer::after {
    right: 0px;
  }
}

/*3440*/
@media (min-width: 1901px) and (max-width: 2600px){
  .main::before, .main::after {
    top: 20.9rem;
    width: 100px;
  }

  .main::before {
    left: 0px;
  }

  .main::after {
    right: 0px;
  }
  
  span {
        position: absolute;
        top: 22.2rem;
        left: 65rem;
        width: 500px; 
    }

    .BasicInfo::before, .BasicInfo::after {
      top: 34.8rem;
      width: 100px;
    }
 
    .BasicInfo::before{
      left: 0px;
    }
 
    .BasicInfo::after{
      right: 0px;
    }

    footer::before, footer::after {
      top: 200.9rem;
      width: 80px;
    }
  
    footer::before {
      left: 0px;
    }
  
    footer::after {
      right: 0px;
    }
}