:root {
  --primary-color: black;
  --highlight: black;
  --rootfont: 'Noto Sans', sans-serif;
  --rootfont2: 'Open Sans', sans-serif;
  --rootfont3: 'Noto Serif HK', serif;
}

html::-webkit-scrollbar {
  width: 2vw;
}
html::-webkit-scrollbar-thumb{
  background-color:rgba(220,220,220,.5);
  border-radius: 2vw;
  min-height: 2vw;
  max-height: 2vw;
  height: 2vw;
}
html::-webkit-scrollbar-thumb:hover{
  background-color: black;
}
html::-webkit-scrollbar-track{
  background-color:transparent;
}





html, body {
  padding: 0;
  width: 90vw;
  margin-left: auto;
  margin-right: auto;
}

header {
  display: flex;
  justify-content: left;
  align-items: left;
  padding-top: 5vh;
  width: 90vw;
  text-align: left;
  outline: none;

}

.cover-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 70vh;
  width: 70vw;
  padding: 0 0 0 0;
  margin-left: auto;
  margin-right: auto;
  margin-top: 10vh
}
.nav-page{
  display: flex;
  justify-content: left;
  margin: auto;
  padding: 0 0 0 0;
  
}

.menu-page {
  display: flex;
  justify-content: left;
  margin: auto;
  padding: 0 0 200px 0;
  
}

.scroll-page{
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: left;
  width: 100%;
  height: fit-content;
  margin-left: auto;
  margin-right: auto;
  padding: 0 0 200px 0;
}



.nav-content {
  display: flex;
  flex-direction: column;
  justify-content: left;
  align-items: left;
  width: 100%;
  padding: 0;
  max-width: 400px;

}


 .menu-content{
  display: flex;
  flex-direction: column;
  justify-content: left;
  align-items: left;
  width: 100%;
  padding: 0;
  max-width: 400px;
  margin-left: 10px;
  margin-right: auto;
}

.cover-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 50vw;
  height: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.scroll-content{
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: left;
  width: 100%;
  height: fit-content;
  margin-left: auto;
  margin-right: auto;
  padding: 0 0 0 0;
}





.nav-content ul, .cover-content ul, .menu-content ul, .scroll-page ul {
  list-style-type: none;
  padding: 0 0 0 0;
}

.nav-content a, .nav-page a, .btn-2 a, .btn-4 a, .btn-5 a {
  text-decoration: none;
  color: #000;
  
}





h1, h2, h3, h4, h5, P {
  font-family: var(--rootfont);
  font-weight: 100;
  margin: 0;
}

h1 {
  font-size: 1.3em;
  line-height: 1.5em;
}


h2 {
  font-size: 1.4em;
  line-height: 2em;
  margin: 0;
  font-weight: 600;

}

h3 {
  font-size: 1.2em;
  line-height: 1.2em;
  margin: 0;
  font-style: italic;
}

h4 {
  font-size: 1.2em;
  line-height: 1.5em;
  margin-top: 20px;
  margin-bottom: 20px;
  font-weight: 100;
}

h5 {
  font-size: 1.5em;
  line-height: 1.5em;
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: 600;
  text-transform: uppercase;
}

p {
  font-size: 1.8em;
  line-height: 1.4em;
  margin: 10px 0 20px 0;
}







.btn-0, .btn-1, .btn-2, .btn-3, .btn-4, .btn-5 {
  border: none;
  background-color: transparent;
  outline: none;
  font-family: var(--rootfont);
  transition: all 0.5s ease;
  text-align: left;
  color: var(--primary-color);
}

.btn-0 {
  font-size: 20px;
  padding: 0;
}

.btn-0:hover, .btn-1:hover, .btn-2:hover, .btn-3:hover, .btn-12:hover {
  cursor: pointer;
  transform: scale(1.2);
}

.btn-1, .btn-3 {
  padding: 0 0 0 0;
  font-size: 16px;
}

.btn-2{

  font-size: 16px;
  padding-left: 15px;
  padding-right: 0px;
}

.btn-3 {
  font-family: var(--rootfont2);
  font-size: 10em;
  font-weight: 700;
  line-height: 1.5em;
}

.btn-4, .btn-5 {
  font-size: 16px;
}


.img1, .img2, .img3 {
  border: none;
  width: 100%;
  max-width: 100%;
  padding-top: 20px;
  padding-bottom: 20px;
}

.img2 {
  max-width: 400px;
}







@media (min-width: 0px) {
.nav-content, .menu-content, .nav-page, .menu-page, .menu-content, .scroll-page, .scroll-content{
    width: 90vw;
  }

  .btn-0 {
    font-size: 5vw;
  }

  .btn-1{
    font-size: 6vw;
  }
  .btn-2{
    font-size: 4vw;
  }


  .btn-3 {
    font-size: 22vw;
  }
  .btn-4 {
    font-size: 4vw;
  }
}

@media (min-width: 600px) {
  .nav-content, .menu-content, .nav-page, .menu-page, .menu-content, .scroll-page, .scroll-content{
    max-width: 700px;
  }

  .btn-0, .btn-1{
    font-size: 2em;
  }

  .btn-2 {
    font-size: 1.5em;
  }

  .btn-3 {
    font-size: 22vw;
  }
  .btn-4 {
    font-size: 1.5em;
  }
}

@media (min-width: 1080px) {
  .nav-content, .menu-content, .nav-page, .menu-page, .menu-content, .scroll-page, .scroll-content {
    max-width: 800px;
  }

  .btn-0, .btn-1{
    font-size: 2em;
  }

  .btn-2 {
    font-size: 1.5em;
  }

  .btn-3 {
    font-size: 15vh;
  }
}

@media (min-width: 1600px) {
  .nav-content, .menu-content, .nav-page, .menu-page, .menu-content, .scroll-page, .scroll-content {
    max-width: 1080px;
  }

  .btn-0, .btn-1{
    font-size: 2em;
  }

  .btn-2 {
    font-size: 1.5em;
  }

  .btn-3 {
    font-size: 15vh;
  }
}