drowning-among-stars/src/index.css

html, body {
  margin: 0;
  background: black;
  color: white;
}

#root {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: #171717;
  /* font-family: 'VT323', monospace; */
  font-family: 'Share Tech Mono', monospace;
  overflow: hidden;
}


/**
 * CRT Effects
 */

html {
  --scan-width: 2px;
  --scan-color: rgba(114, 24, 136, 0.068);
  --big-scan-width: 150px;
  --big-scan-color: rgba(108, 63, 117, 0.185);
  --color-flicker: rgba(42, 102, 48, 0.08);
  --crt-shadow-1: rgba(0,30,255,0.5);
  --crt-shadow-2: rgba(255,0,80,0.3);
}

html.noeffects {
  --scan-color: transparent;
  --big-scan-color: transparent;
  --color-flicker: transparent;
  --crt-shadow-1: transparent;
  --crt-shadow-2: transparent;
}

@keyframes flicker {
  0% {
    opacity: 0.27861;
  }
  5% {
    opacity: 0.34769;
  }
  10% {
    opacity: 0.23604;
  }
  15% {
    opacity: 0.90626;
  }
  20% {
    opacity: 0.18128;
  }
  25% {
    opacity: 0.83891;
  }
  30% {
    opacity: 0.65583;
  }
  35% {
    opacity: 0.67807;
  }
  40% {
    opacity: 0.26559;
  }
  45% {
    opacity: 0.84693;
  }
  50% {
    opacity: 0.96019;
  }
  55% {
    opacity: 0.08594;
  }
  60% {
    opacity: 0.20313;
  }
  65% {
    opacity: 0.71988;
  }
  70% {
    opacity: 0.53455;
  }
  75% {
    opacity: 0.37288;
  }
  80% {
    opacity: 0.71428;
  }
  85% {
    opacity: 0.70419;
  }
  90% {
    opacity: 0.7003;
  }
  95% {
    opacity: 0.36108;
  }
  100% {
    opacity: 0.24387;
  }
}

@keyframes textShadow {
  0% {
    text-shadow: 0.4389924193300864px 0 1px var(--crt-shadow-1), -0.4389924193300864px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  5% {
    text-shadow: 2.7928974010788217px 0 1px var(--crt-shadow-1), -2.7928974010788217px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  10% {
    text-shadow: 0.02956275843481219px 0 1px var(--crt-shadow-1), -0.02956275843481219px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  15% {
    text-shadow: 0.40218538552878136px 0 1px var(--crt-shadow-1), -0.40218538552878136px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  20% {
    text-shadow: 3.4794037899852017px 0 1px var(--crt-shadow-1), -3.4794037899852017px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  25% {
    text-shadow: 1.6125630401149584px 0 1px var(--crt-shadow-1), -1.6125630401149584px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  30% {
    text-shadow: 0.7015590085143956px 0 1px var(--crt-shadow-1), -0.7015590085143956px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  35% {
    text-shadow: 3.896914047650351px 0 1px var(--crt-shadow-1), -3.896914047650351px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  40% {
    text-shadow: 3.870905614848819px 0 1px var(--crt-shadow-1), -3.870905614848819px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  45% {
    text-shadow: 2.231056963361899px 0 1px var(--crt-shadow-1), -2.231056963361899px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  50% {
    text-shadow: 0.08084290417898504px 0 1px var(--crt-shadow-1), -0.08084290417898504px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  55% {
    text-shadow: 2.3758461067427543px 0 1px var(--crt-shadow-1), -2.3758461067427543px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  60% {
    text-shadow: 2.202193051050636px 0 1px var(--crt-shadow-1), -2.202193051050636px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  65% {
    text-shadow: 2.8638780614874975px 0 1px var(--crt-shadow-1), -2.8638780614874975px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  70% {
    text-shadow: 0.48874025155497314px 0 1px var(--crt-shadow-1), -0.48874025155497314px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  75% {
    text-shadow: 1.8948491305757957px 0 1px var(--crt-shadow-1), -1.8948491305757957px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  80% {
    text-shadow: 0.0833037308038857px 0 1px var(--crt-shadow-1), -0.0833037308038857px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  85% {
    text-shadow: 0.09769827255241735px 0 1px var(--crt-shadow-1), -0.09769827255241735px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  90% {
    text-shadow: 3.443339761481782px 0 1px var(--crt-shadow-1), -3.443339761481782px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  95% {
    text-shadow: 2.1841838852799786px 0 1px var(--crt-shadow-1), -2.1841838852799786px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
  100% {
    text-shadow: 2.6208764473832513px 0 1px var(--crt-shadow-1), -2.6208764473832513px 0 1px var(--crt-shadow-2), 0 0 3px;
  }
}

/* Flickering overlay */
.flickering::after {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: var(--color-flicker);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  animation: flicker 0.15s infinite;
}

/* Text fuzzing */
.fuzzing, .fuzzing button, .fuzzing input {
  animation: textShadow 1.6s infinite;
}

/* Scan lines */
.scan {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  overflow: hidden;
  pointer-events: none;
  z-index:3;
}

.scan:before{
  z-index:1;
  position:absolute;
  content:' ';
  width:100%;
  height:100%;
  display:block;
  background: linear-gradient(var(--scan-color) 50%, rgba(0,0,0,0) 50%);
  background-size: 100% calc(var(--scan-width)*2);
  background-repeat:repeat;
  animation: allscan .1s linear infinite;
}
@keyframes allscan {
  0%  { background-position: center 0px }
  100% { background-position: center calc(var(--scan-width)*2) }
}

.scan:after{
  z-index:1;
  content:' ';
  width:100%;
  height: var(--big-scan-width);
  display:block;
  position:absolute;
  top: calc(-1 * var(--big-scan-width));
  background: linear-gradient(rgba(0,0,0,0) 0, var(--big-scan-color) 50%,rgba(0,0,0,0) 100%);
  background-position: center 0px;
  background-size: 100%;
  background-repeat:no-repeat;
  animation: singlescan 10s linear infinite;
}
@keyframes singlescan{
  0%  { top: calc(-1 * var(--big-scan-width)) }
  100% { top: 100% }
}