html, body, div, span, h1, h2, h3, h4, h5, h6 {
  border: 0;
  outline: 0;
}

body, div, p {
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  background-color: black;
  font-size: 11px;
  overflow: hidden;
  padding: 0;
  width: 1920px;
  height: 1080px;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

#container {
  width: 1920px;
  height: 1080px;
  padding: 0;
  margin: 0;
  background-image: url(../images/background.jpg);
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: #3b2a6b;
}

#navrat {
  position: absolute;
  padding: 0;
  top: 35px;
  left: 50px;
  z-index: 10;
  width: 120px;
  height: 120px;
  background-image: url('../images/navrat.png');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

#btn_reset {
  position: absolute;
  left: 220px;
  top: 35px;
  height: 120px;
  width: 120px;
  border: none;
  z-index: 99;
  background-image: url('../images/reload.png');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

#napis {
  position: absolute;
  left: 710px;
  top: 25px;
  height: 140px;
  width: 500px;
  border: none;
  z-index: 99;
}

/* lavy panel: obtiaznost */
#panelL {
  position: absolute;
  left: 110px;
  top: 300px;
  width: 400px;
  z-index: 12;
}

.lbl {
  font: 800 38px/46px Inter, Arial, Helvetica, sans-serif;
  margin-bottom: 14px;
}

.lvl {
  width: 360px;
  height: 110px;
  margin-bottom: 22px;
  box-sizing: border-box;
  text-align: center;
  font: 900 64px/96px Inter, Arial, Helvetica, sans-serif;
  letter-spacing: 2px;
  color: #3b2a6b;
  background: rgba(255, 255, 255, 0.75);
  border: 7px solid #3b2a6b;
  border-radius: 34px;
  cursor: pointer;
}

#pravidlo {
  width: 360px;
  margin-top: 8px;
  text-align: center;
  font: 800 34px/42px Inter, Arial, Helvetica, sans-serif;
  color: #3b2a6b;
}

.lvl.active {
  background: #ffe600;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.18);
}

/* hracia plocha 3 x 3 */
#board {
  position: absolute;
  left: 642px;
  top: 262px;
  width: 636px;
  height: 636px;
  z-index: 12;
  touch-action: none;
}

.bunka {
  position: absolute;
  width: 204px;           /* skutocny rozmer nastavuje JS podla velkosti pola */
  height: 204px;
  box-sizing: border-box;
  background: #fff;
  border: 7px solid #3b2a6b;
  border-radius: 34px;
  cursor: pointer;
}

#board.male .bunka { border-width: 6px; }
#board.mini .bunka { border-width: 3px; }

.bunka.zabrata { cursor: default; }
.bunka.vyhra { background: #d8f7dc; border-color: #1f9d3d; }
.bunka.prehra { background: #ffe0e0; border-color: #d9372b; }

.bunka svg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

.znak {
  fill: none;
  stroke-width: 22;
  stroke-linecap: round;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: kresli 0.3s ease-out forwards;
}

.znak.x { stroke: #ff7a00; }
.znak.o { stroke: #2b8be0; stroke-dasharray: 340; stroke-dashoffset: 340; }   /* dlzka kruhu je ~327 */
.znak.x.druha { animation-delay: 0.15s; }

@keyframes kresli {
  to { stroke-dashoffset: 0; }
}

/* vyhodnotenie kola */
#vysledok {
  position: absolute;
  left: 560px;
  top: 920px;
  width: 800px;
  height: 100px;
  line-height: 100px;
  text-align: center;
  font: 900 60px/100px Inter, Arial, Helvetica, sans-serif;
  color: #fff;
  background: #3b2a6b;
  border-radius: 34px;
  z-index: 20;
  display: none;
}

#vysledok.vyhral { background: #1f9d3d; }
#vysledok.prehral { background: #d9372b; }

/* pravy panel: skore */
#panelR {
  position: absolute;
  left: 1400px;
  top: 330px;
  width: 400px;
  z-index: 12;
}

.val {
  font: 900 100px/104px Inter, Arial, Helvetica, sans-serif;
  margin-bottom: 30px;
}

#sila {
  margin: -6px 0 4px;
  font: 900 32px/44px Inter, Arial, Helvetica, sans-serif;
  letter-spacing: 1px;
  color: #ff9d00;
}