/* Colours. */
/* Measures */


#pin {
  color: #67757c;
  min-height: 33em; 
  position: relative;
  width: 22.5em;

}
#pin > .display {
 background: #fff;   
    box-shadow: 4px 4px 8px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    height: 100%;
    left: 0;
    padding: 3em 1em 1em;
    position: absolute;
    text-align: center;
    top: 0;
    width: 100%;
    transition: border-color .6s, -webkit-transform .6s;
    transition: transform .6s, border-color .6s;
    transition: transform .6s, border-color .6s, -webkit-transform .6s;
    
}
#pin > .display > .dots {
    background-color: #fff;
    border-radius: 4px;
    border: 1px solid #20aee3;
    box-sizing: border-box;
    display: flex;
    height: 72px;
    justify-content: space-around;
    margin: 0 auto;
    padding: 1.7em 1em;
    width: 75%;
}

#pin > .display > .dots > .dot {
  background: rgba(0, 0, 0, 0.6);
  border-radius: 1em;
  box-shadow: 4px 4px 12px 2px rgba(0, 0, 0, 0.12);
  height: 1em;
  position: relative;
  -webkit-transform: scale3d(0.5, 0.5, 0.5);
          transform: scale3d(0.5, 0.5, 0.5);
  width: 1em;
  transition: background-color .5s, -webkit-transform .5s;
  transition: background-color .5s, transform .5s;
  transition: background-color .5s, transform .5s, -webkit-transform .5s;
}
#pin > .display > .dots > .dot.active {
  background-color: #20aee3;
  -webkit-transform: scale3d(1, 1, 1);
          transform: scale3d(1, 1, 1);
}
#pin > .display > .numbers {
  align-content: flex-end;
  align-items: center;
  display: flex;
  flex-flow: row wrap;
  justify-content: space-around;
  margin: 2em 0;
}
#pin > .display > .numbers > .number {
    border: 1px solid #67757c17;
    border-radius: 2.5em;
    cursor: pointer;
    font-size: 1.8em;
    height: 2.4em;
    line-height: 2.5em;
    margin: 0.3125em 0.2083333333em;
    position: relative;
    text-align: center;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    width: 2.5em;
    transition: color .5s;
}
#pin > .display > .numbers > .number:hover {
  color:#20aee3;
}
#pin > .display > .numbers > .number:hover:before {
  border-color: #20aee3;
}
#pin > .display > .numbers > .number:before {
 border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2.5em;
    content: '';
    height: 2.4em;
    left: -2px;
    position: absolute;
    width: 2.5em;
    transition: border-color .5s;
}
#pin > .display > .numbers > .number.grow:before {
  -webkit-animation: grow .6s;
          animation: grow .6s;
}


#pin > input[type="checkbox"] {
  display: none;
}

#pin > input[type="checkbox"]:checked + label, #pin > input[type="checkbox"]:checked ~ div.display {
  -webkit-transform: rotateY(180deg);
          transform: rotateY(180deg);
}
#pin > input[type="checkbox"]:checked + label {
  box-shadow: -4px 4px 8px rgba(0, 0, 0, 0.3);
}

#pin > label[for="guide"]:hover:after {
  border-left-color: rgba(255, 255, 255, 0.5);
}
#pin.wrong {
  -webkit-animation: wrong .9s;
          animation: wrong .9s;
}
#pin.wrong > div.display, #pin.wrong > div.guide {
  border-color: #9e1e1e;
}
#pin.correct {
  -webkit-animation: correct .9s;
          animation: correct .9s;
}
#pin.correct > div.display, #pin.correct > div.guide {
  border-color: #388E3C;
}

@-webkit-keyframes correct {
  20% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
  60% {
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  80% {
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
}

@keyframes correct {
  20% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
  60% {
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  80% {
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
}
@-webkit-keyframes grow {
  50% {
    -webkit-transform: scale3d(1.5, 1.5, 1.5);
            transform: scale3d(1.5, 1.5, 1.5);
  }
  100% {
    -webkit-transform: scale3d(1, 1, 1);
            transform: scale3d(1, 1, 1);
  }
}
@keyframes grow {
  50% {
    -webkit-transform: scale3d(1.5, 1.5, 1.5);
            transform: scale3d(1.5, 1.5, 1.5);
  }
  100% {
    -webkit-transform: scale3d(1, 1, 1);
            transform: scale3d(1, 1, 1);
  }
}
@-webkit-keyframes wrong {
  20% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  40% {
    -webkit-transform: translateX(-10px);
            transform: translateX(-10px);
  }
  60% {
    -webkit-transform: translateX(20px);
            transform: translateX(20px);
  }
  80% {
    -webkit-transform: translateX(-10px);
            transform: translateX(-10px);
  }
}
@keyframes wrong {
  20% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  40% {
    -webkit-transform: translateX(-10px);
            transform: translateX(-10px);
  }
  60% {
    -webkit-transform: translateX(20px);
            transform: translateX(20px);
  }
  80% {
    -webkit-transform: translateX(-10px);
            transform: translateX(-10px);
  }
}

button.btn.btn-info.show-me:hover {
    opacity: 100;
}

.login-box {
    width: 25em;
    margin: 0 auto;
}

/* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 812px) {
	#pin {
  color: #67757c;
  height: 33em; 
  position: relative;
  width: 22.5em;
      backface-visibility: hidden;

}
}