* {
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  margin: 0 auto; 
  overflow: hidden;
  background: #000;
}

body {
  position: relative;
  color: #0F0;
  font-family: monospace;
  font-size: 20px;
  text-shadow: 0px 0px 10px #0F0;
}

p {
  margin: 0;
}

a {
  text-decoration: none;
}

#container{
  position: absolute;
  display: table;
  width: 100%;
  height: 100%;
  overflow: inherit;
}

#term {
  padding: 10px;
  width: 100%;
}

#output,
#prompt,
#pre,
#carat,
#post {
  white-space: pre;
}

#carat {
  background: #0F0;
  color: #000;
  animation: blink 1.5s linear infinite;
}

#input {
  display: flex;
}

#overlay {
    position: absolute;
    height: 100vh;
    width: 100vw;
}

#intro {
  margin-bottom: 10px;
}

#splash-container {
  position: relative;
  display: table-cell;
  vertical-align: middle;
  overflow: inherit;
}

#splash {
  margin: 0 auto;
  width: 300px;
  height: auto;  
}

#splash img {
  width: 300px;
  border: 3px solid #0F0; 
}

.menu-item {
  margin-left: 10px;
  cursor: pointer;
}

.item-prev {
  margin-left: 10px;
}

.active {
  text-shadow: none;
  color: #1f6306;
  background: #0F0;
  font-weight: bold;
  box-shadow: 0px 0px 5px 3px #0F0;
}

.hidden {
  display: none!important;
}

.sep {
  color: #0F0;
}

.scanlines {
    overflow: hidden;
    position: relative;
}
.scanlines:before,
.scanlines:after {
    display: block;
    pointer-events: none;
    content: "";
    position: absolute;
}
.scanlines:before {
    width: 100%;
    height: 1px;
    z-index: 2147483649;
    background: rgba(0, 0, 0, 0.75);
    opacity: 0.5;
    -webkit-animation: none;
            animation: none;
}
.scanlines:after {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2147483648;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 0, 0, 0.75) 50%
    );
    /*
    background: linear-gradient(
        to bottom,
        transparent 30%,
        rgba(0, 0, 0, 0.3) 51%
    );
    */
    background-size: 100% 2px;
    -webkit-animation: none;
            animation: none;
}

/*
:root {
  --line-l: #05CA05;
  --line-d: #0e3300;
  --line-s: 1.5px;
}

#overlay {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 99%;
  z-index: 2;
  background: repeating-linear-gradient(0deg, var(--line-l), var(--line-l) var(--line-s), var(--line-d) var(--line-s), var(--line-d) calc(var(--line-s) * 2)), repeating-linear-gradient(90deg, #F003, #0F03 1px, #0000 2px);
  background-blend-mode: overlay;
  mix-blend-mode: multiply;
  pointer-events: none;
}

.crtEffect {
  animation: flicker 0.1s linear infinite;
}

@keyframes flicker {
  from {opacity: 0.85}
  to {opacity: 1}
}

@keyframes blink {
  20% {
    background: #0F0;
    color: #000;
  }
  25% {
    background: #000;
    color: #0F0;
  }
  75% {
    background: #000;
    color: #0F0;
  }
  80% {
    background: #0F0;
    color: #000;
  }
}
*/