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;
}

/* otazka nad plochou */
#otazka {
  position: absolute;
  left: 110px;
  top: 215px;
  width: 1300px;
  text-align: center;
  font: 900 54px/64px Inter, Arial, Helvetica, sans-serif;
  z-index: 12;
}

/* plocha s predmetmi na pocitanie */
#plocha {
  position: absolute;
  left: 110px;
  top: 295px;
  width: 1300px;
  height: 450px;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.7);
  border: 7px solid #3b2a6b;
  border-radius: 40px;
  z-index: 12;
}

.vec {
  position: absolute;
  width: 150px;
  height: 150px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  pointer-events: none;
  animation: objav 0.35s ease-out both;
}

@keyframes objav {
  from { transform: scale(0.2); opacity: 0; }
}

/* hlaska (spravne / skus znova) */
#hlaska {
  position: absolute;
  left: 110px;
  top: 758px;
  width: 1300px;
  height: 64px;
  text-align: center;
  font: 900 52px/64px Inter, Arial, Helvetica, sans-serif;
  z-index: 12;
}

#hlaska.ok { color: #1f9d3d; }
#hlaska.zle { color: #d9372b; }

/* tri tlacidla s cislami */
#odpovede {
  position: absolute;
  left: 110px;
  top: 840px;
  width: 1300px;
  height: 190px;
  z-index: 12;
}

.odp {
  position: absolute;
  top: 0;
  width: 380px;
  height: 180px;
  box-sizing: border-box;
  text-align: center;
  font: 900 120px/166px Inter, Arial, Helvetica, sans-serif;
  color: #fff;
  border: 7px solid #3b2a6b;
  border-radius: 40px;
  cursor: pointer;
  box-shadow: 0 8px 0 rgba(0, 0, 0, 0.2);
}

.odp.c0 { background: #ff8a00; left: 0; }
.odp.c1 { background: #29a8ee; left: 460px; }
.odp.c2 { background: #7ab332; left: 920px; }

.odp.spravne { background: #1f9d3d; animation: pulz 0.5s ease-out; }
.odp.zle { background: #9a9a9a; opacity: 0.6; animation: trasie 0.4s; }

@keyframes pulz {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes trasie {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-14px); }
  75% { transform: translateX(14px); }
}

/* pocet spravnych odpovedi */
#hviezdy {
  position: absolute;
  left: 1480px;
  top: 215px;
  width: 300px;
  text-align: left;
  font: 900 64px/72px Inter, Arial, Helvetica, sans-serif;
  color: #3b2a6b;
  z-index: 12;
}

#hviezdy::before {
  content: "\2605";
  color: #ffb000;
  margin-right: 14px;
  text-shadow: 0 3px 0 rgba(59, 42, 107, 0.4);
}