* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    margin:0;
    padding:0;
    -webkit-user-select: none; /* Safari */
    -ms-user-select: none; /* IE 10+ and Edge */
    user-select: none; /* Standard syntax */
    -webkit-user-drag: none;
  }
    
#frame-page {
  height: calc(var(--vh, 1vh) * 100);
  padding: calc(var(--vh, 1vh) * 1) solid;
  background: black;
  overflow: hidden;
}

#game-container {
  background-color: black;
  position: relative;
  height: calc(var(--vh, 1vh) * 96);
  left: 50%;
  top:50%;
  transform: translate(-50%, -50%);
  width: calc(var(--vh, 1vh) * 150);
}

.players {
  border: 1px solid black;
  float:left;
  height: calc(var(--vh, 1vh) * 96);
  position: relative;
  text-align:center;
  width: calc(var(--vh, 1vh) * 24.5);
}

#Player1, #Player2 {
  display: grid;
  float:left;
  grid-template-rows: auto auto auto auto auto auto auto auto ;
  grid-template-columns: auto auto;
  height: 100%;
  margin:0 .5%;
  position: relative;
  width: 100%;
}

#Player1DropArea, #Player2DropArea {
  align-content: flex-start;
  display: flex;
  flex-wrap: wrap;
  height: auto;
  position: absolute;
  width: 100%;
  z-index: 2;
}

#Player1DropArea img, #Player2DropArea img, #Player1DropArea div, #Player2DropArea div {
  bottom: unset;
  height: 12.5%;
  left: unset;
  position: relative;
  top: unset;
  transform: unset;
  width: 50%;
}

#Player1  [id^="square"], #Player2 [id^="square"] {
  background-image: url(resources/objects/backgroundEmerald.png);
  background-size: cover;
  float: left;
  height: 100%;
  width: 100%;
  position:relative;
  }

#Player2 [id^="square"] {
background-image: url(resources/objects/backgroundSapphire.png);
}

.board {
  border: 1px black solid;
  display: grid;
  float: left;
  grid-template-rows: auto auto auto auto auto auto auto auto ;
  grid-template-columns: auto auto auto auto auto auto auto auto ;
  height: calc(var(--vh, 1vh) * 96);
  margin: 0 calc(var(--vh, 1vh) * 2.5);
  width: calc(var(--vh, 1vh) * 96);
}

[id^="square"] {
  background-size: cover;
  float: left;
  height: 100%;
  width: 100%;
  position:relative;
}

.light {
  background-image:url('resources/objects/backgroundDiamonds.jpg');
}
.dark {
  background-image:url('resources/objects/backgroundRubyRed.jpg');
}
  
[id^="piece"] {
  height: 100%;
  width: 100%;
  background: transparent;
}

.cross-v {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 90%;
  left: 50%;
  padding: .2vh 0;
  position: absolute;
  text-align: center;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 20%; 
  z-index: 2;
}

.cross-h {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 20%;
  left: 50%;
  padding: 0 .2vh;
  padding-top: .3vh;
  position: absolute;
  text-align: left;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 90%; 
  z-index: 1;
}

.right {
  right: .2vh;
  position: absolute;
}

.bottom {
  bottom: -.1vh;
  padding-bottom: 0vh;
  left: 50%;
  position: absolute;
  transform: translate(-50%);
}

.angle {
  transform: rotate(45deg);
}

.angle2 {
  position: absolute;
  transform-origin: center;
  transform: rotate(-45deg);
}
.king-v {
  height: 70%;
}

.king-h {
  width: 70%;
}

.king img, .queen img {
  z-index: 3;
  height: 15%;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: auto;
}

.knight-v {
  height: 80%;
}

.knight-h {
  width: 80%;
}

.cross-t {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 20%;
  left: 50%;
  padding: .2vh;
  padding-top: .3vh;
  position: absolute;
  text-align: left;
  top: 10%;
  transform: translate(-50%, 0);
  width: 50%; 
}

.cross-b {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 20%;
  left: 50%;
  padding: .2vh;
  padding-top: .3vh;
  position: absolute;
  text-align: left;
  bottom: 10%;
  transform: translate(-50%, 0);
  width: 50%; 
}

.cross-l {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 50%;
  left: 6%;
  padding: 0 .1vh;
  position: absolute;
  text-align: center;
  top: 50%;
  transform: translate(0%, -50%);
  width: 20%; 
}

.cross-r {
  background-image: url('resources/objects/backgroundDiamondBlack.png');
  color: white;
  height: 50%;
  right: 6%;
  padding: 0 .1vh;
  position: absolute;
  text-align: center;
  top: 50%;
  transform: translate(0%, -50%);
  width: 20%; 
}

.white {
  background-image: url('resources/objects/backgroundMarbleWhite.png');
  color: black;
  font-weight: bolder;
}

.box-instructions {
  bottom: calc(var(--vh, 1vh) * .75);
  height: auto;
  position: absolute;
  text-align: center;
  width: 100%;
  z-index: 5;
}

.box-instructions button {
  display: block;
  font-size: .8vw;
  height: calc(var(--vh, 1vh) * 5);
  margin-left: 20%;
  margin-top: calc(var(--vh, 1vh) * .75);
  position: relative;
  width: 60%;
  z-index: 5;
}


#warningLandscape {
  background: black;
  color: white;
  display: none;
  font-size: 8vh;
  height: calc(var(--vh, 1vh) * 100);
  justify-content: center;
  position: absolute;
  text-align: center;
  width: 100%;
  z-index: 100;
}

#warningLandscape p {
  position: absolute;
  top: 50%;
  transform: translate(0%, -50%);
  width: 100%;
}

@media screen and (orientation:portrait) {
  #warningLandscape {
    display: block;
  }  
  html {
    background: black;
  }
  #frame-page {
    display: none;
  }
}