/*scroll*/

html{
  scroll-behavior: smooth;
}

/*reset*/

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

/*btn top*/

.top{
 display: scroll;
  position: fixed;
  visibility: hidden;
  bottom: 10rem;
  right: 0.8rem;
  padding: 5px;
  background: rgba(0,0,0,0.5);
  color: white;
  z-index: 99;
  text-decoration: none;
  border-radius: 5px;
}


/*navbar*/

#navbar{
  background: rgba(0,0,0,0.5);
  width: 22rem;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  border-right: 1px solid;
}
#navbar ul{
  height: 80%;
  list-style: none;
  padding: 10px 10px;
  display: flex;
  flex-direction: column;
  overflow-y: visible;
  overflow-x: hidden;
}
#navbar li{
  flex-grow: 1;
  border-bottom: 1px solid black;
}
#navbar a{
  color: white;
  display: block;
  text-decoration: none;
  padding: 0.5rem;
  font-size: 1.2rem;
}
#navbar a:hover{
  background: rgba(0,0,0,0.5);
  box-shadow: 5px 8px 8px silver;
  transition: 0.5s;
  border-radius: 5px;
  font-weight: bold;
}
#navbar header{
  text-align: center;
  color: white;
  padding-top: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
}
#navbar img{
  width: 30px;
}
#menu{
  display: none;
}

/*main*/

#main-doc{
  position: absolute;
  left: 22rem;
  right: 0;
  padding: 15px;
}
code{
  display: block;
  text-align: left;
  white-space: pre;
  position: relative;
  word-break: normal;
  word-wrap: normal;
  overflow: auto;
  line-height: 1rem;
  padding: 1rem;
  margin: 1rem;
  background: rgba(0,0,0,0.5);
  border-radius: 5px;
  color: #fff;
}
code:hover{
  box-shadow: 5px 8px 8px silver;
}
#main-doc header{
  font-size: 1.7rem;
  font-family: sans-serif;
  padding: 15px 0;
  line-height: 3rem;
  border-top: 1px solid silver;
  box-shadow: 5px 8px 8px silver;
  text-shadow: 2px 2px 2px silver;

}
#main-doc p{
  font-family: sans-serif;
  line-height: 1.7rem;
  padding: 15px;
  text-align: justify;
}
#main-doc a{
  text-decoration: none;
  color:#000;
  background: silver;
  padding: 5px;
  border-radius: 5px;
}
#main-doc a:hover{
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-weight: bold;
}
#main-doc ul{
  list-style: none;
}
#main-doc li{
  padding: 0 0 5px 15px;
  margin-bottom: 10px;
}
#main-doc img{
  width: 50%;
  border: 1px solid black;
  display: block;
  margin: 15px auto 5px auto;
  box-shadow: 5px 8px 8px silver;
}

/*Media*/

@media(max-width:800px){
  #navbar{
    position: absolute;
    width: 100%;
    height: 13rem;
    z-index: 100;
    text-align: center;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.8);
  }
  #navbar li{
  flex-grow: 1;
  border: none;
  }
  #main-doc{
    position: relative;
    left: 0;
    margin-top: 12rem;
  }
  #main-doc img{
    width: 90%;
  }
  .top{
    visibility: visible;
  }
}