*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif  ;
  }
  html{
    scroll-behavior: smooth;
  }
  body{
    margin: 0px;
    padding: 0px;
    background-color: aliceblue;
  }
  svg{
    margin: 0px;
    padding: 0px;
  }
  /************************* animce *********************/
  .line-up {
    animation: 2s anim-lineUp ease-out ;
  }
  .btn-stred{
    display: flex;
    justify-content: center;
  }
  @keyframes anim-lineUp{
    0% {
        opacity: 0;
        transform: translateY(80%);
    }20% {
        opacity: 0;
      }
      50% {
        opacity: 1;
        transform: translateY(0%);
      }
      100% {
        opacity: 1;
        transform: translateY(0%);
      }
  }
  /******************* Hlavicka ****************************/
  header{ 
    position: fixed;
    top: 0;
    left: 0;
    height: 100px;
    width: 100%;
    display: flex;
    justify-content:space-between ;
    align-items:center ;
    padding: 20px 100px;
    transition: 0.6s;
    z-index: 3;
      }
  header .logo{
    font-family:Georgia, 'Times New Roman', Times, serif ;
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 1.5px;
    line-height: 60px;
    cursor: pointer;  
    color: aliceblue;
    transition-duration: 2s;
  }
  header ul{
    float: right;
    margin-right: 20px;
    padding: 0 100px;
     color: aliceblue; 
  }
  header ul li{
    display: inline-block;
    margin: 0 5px;
    line-height: 60px;
    list-style: none;
    position: relative;
  }
  header ul li a{
    font-size: 16px;
    font-weight: 500;
    padding: 7px 13px;
    text-decoration: none;
    text-transform: uppercase;
    color: aliceblue;
    transition-duration: 2s; 
  }
  header ul li a:hover{
    font-weight: bold;
    color: aliceblue;
  }
  /******************* Sticky ****************************/
  header.Sticky{
    padding: 12px 100px;
    background: transparent;
    box-shadow: 2px 5px 7px rgba(14, 63, 47, 0.2);
    
  }
  header.Sticky ul li a{
    transition-duration: 2s;
    color: #272727;
    font-weight: 500;
  }
  header.Sticky ul li a:hover{
    font-weight: bolder;
  }
  header.Sticky .logo{
    transition-duration: 2s;
    color:#272727 ;
  }
  .banner-container{
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100vh;
    background-image: url(forest.jpg);
    background-repeat:no-repeat;
    background-size: cover;
    justify-content: center;
    align-items: center;
    
  }
  
  .banner{
    display: flex;
    justify-content: center;
    width: 100%;
    top: 50%;
    position: absolute;
    padding-left: 3%;
    transform: translateY(-50%);
    color: aliceblue;
  }
  .banner h1{
    justify-content: center;
    font-size: 50px;
    font-weight: 600;
  }
  .banner p{
    padding-top: 2%;
    justify-content: center;
   text-align: center;
    font-weight: 500;
    line-height: 25px;
  }
  
  .btn{

  width: 200px;
  padding: 15px 0;
  margin: 30px 10px;
  background: transparent;
  color: black;
  font-weight: bold;
  text-align: center;
  border: 3px solid black;
  border-radius: 25px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease; 

  }
  .btn:hover{
    transform: scale(1.1)
  }
  .ok{
    padding-right: 520px;
  }
  
  .bila{
    background-color: rgb(240, 248, 255,0.9);
    margin-left: 15%;
    margin-right: 15%;
    padding: 37px;
    border-radius: 20px;
    font-size: 18px;
  }
  .bila h1{
    margin-bottom: 20px;
    font-size: xx-large;
    padding-left: 220px;
    
  }
  .bila p{
    margin-left: 20px;
  }
  .bila a{
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-self: end;
    align-items: end;
  }
    
  .bila h4{
    padding-left: 540px;
  }
  .row{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-left: 20px;
  }
  
.ctverecek{
    margin-top: 40px;
    width: 300px;
    height: 300px;
    border: rgb(255, 255, 255) solid 2px;
    margin-right: 100px;
    background-image: url(lvling.jpeg);
    background-repeat:no-repeat;
  background-size: cover;
}