html{
  min-height: 100%;
  background-image: linear-gradient(#615dad, #ffc8da);
  background-repeat: no-repeat;
}
body{
  color: #ffffff;
  text-align: center;
  font-family: 'Roboto', sans-serif;
  font-size: 15px;
  margin: 0;
}

.celek{
  margin: 60px auto;
  width: 330px;
  background-color: #283e50;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
}

img{
  max-width: 100%;;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;

}

h1{
  font-family: 'Lobster', cursive;
  font-weight: 100;
  font-size: 50px;
  padding-top: 30px;
  padding-bottom: 20px;
  margin: 0;
}

h2{
  margin: 0;
  text-transform: uppercase;
}

p{
  padding: 10px;
  margin: 0;
}

.button{
  padding-top: 10px;
}

.button ul{
  padding: 0;
}

.button li{
  list-style: none;
}

.button a{
  display: block;
  text-decoration: none;
  color: #ffffff;
  padding-top: 10px;
  padding-bottom: 10px;
}

.button__pravidla, .button__home{
  background-color: #1fcca4;
  width: 100%;
  border-bottom: 1px solid #283e50;
}
.button__pravidla:hover, .button__home:hover,
.button__pravidla:focus, .button__home:focus{
  background-color: #1cbb96;
}

.button__game{
  background-color: #0197f6;
  width: 100%;
}
.button__game:hover,
.button__game:focus{
  background-color: #0090e9;
}


.celek--pravidla ol{
  margin-left: 20px;
  margin-right: 35px;
}
.celek--pravidla .list li{
  text-align: left;
  margin-bottom: 18px;
  padding-left: 10px;
  line-height: 18px;
}

.celek--pravidla .symbol{
  width: 1em;
  height: 1em;
  filter: invert();
}

.celek--pravidla figure{
  padding-top: 30px;
  margin: 10px 25px 10px 25px;
  font-style: italic;
}
.celek--pravidla img{
  border-radius: 0;
}

.celek--hra{
  background-color: transparent;
  max-width: 80vmin;
  width: auto;
  
}

.celek--hra__info{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 20px 0;
}

.hra--hrac{
  display: flex;
}
.hra--hrac .symbol{
  filter: invert();
  padding-left: 10px;
  }

.hra--button{
  display: flex;
}

.hra--button a{
  padding: 12px 10px 12px 10px;
  border-radius: 5px;
  margin-left: 10px;
  border-bottom: none;
}

.celek--hra__pole{
  display: grid;
  grid-template-columns: repeat(10, 10fr);
  grid-template-rows: repeat(10, 10fr);
  opacity: 0.5;
  box-shadow: 0px 0px 1px 1px black;
}

.celek--hra__pole button{
  width: 8vmin;
  height: 8vmin;
  padding: 0;
  border: 1px solid black;
  background-color: rgba(255, 255, 255, 0.664);
  background-repeat: no-repeat;
  background-position: center;
  background-size: 80%;

}

.celek--hra__pole button:hover,:focus{
  background-color: white;
}


.board__field--circle {
  background-image: url('images/circle.svg');
}

.board__field--cross {
  background-image: url('images/cross.svg');
}



@media screen and (min-width:650px){
  .celek--pravidla{
    width: 635px;
  }
  .celek--pravidla .gallery{
    display: flex;
    flex-wrap: wrap;
    padding: 10px;
  }
  .gallery figure{
    flex: 1 1 40%;
    margin: 10px;
    font-size: 12px;
  }
}