/* LIST OF FURTHER IMPROVEMENTS */
/*
currently working on :
calculation draft for keyframes steps

$scan-moving-duration: 3s;
$scan-moving-delay: 7s;

total time = 10s (duration + delay)
keyframes :
    0%: wait
    15%: start moving
    85%: end moving & start waiting
    100% : wait

(the rest later)

*/
/* REGULAR SCANLINES SETTINGS */
/* MOVING SCANLINE SETTINGS */
/* MIXINS */
/* CSS .scanlines CLASS */
.scanlines {
  position: relative;
  overflow: hidden;
}
.scanlines:before,
.scanlines:after {
  display: block;
  pointer-events: none;
  content: '';
  position: absolute;
}
.scanlines:before {
  width: 100%;
  height: 2px;
  z-index: 2147483649;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0.75;
  -webkit-animation: scanline 6s linear infinite;
  animation: scanline 6s linear infinite;
}
.scanlines:after {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2147483648;
  background: -webkit-linear-gradient(top, transparent 50%, rgba(0, 0, 0, 0.3) 51%);
  background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.3) 51%);
  background-size: 100% 4px;
  -webkit-animation: scanlines 1s steps(60) infinite;
  animation: scanlines 1s steps(60) infinite;
}
/* ANIMATE UNIQUE SCANLINE */
@-webkit-keyframes scanline {
  0% {
    -webkit-transform: translate3d(0, 200000%, 0);
    transform: translate3d(0, 200000%, 0);
  }
}
@keyframes scanline {
  0% {
    -webkit-transform: translate3d(0, 200000%, 0);
    transform: translate3d(0, 200000%, 0);
  }
}
@-webkit-keyframes scanlines {
  0% {
    background-position: 0 50%;
  }
}
@keyframes scanlines {
  0% {
    background-position: 0 50%;
  }
}