:root{
  --bg:#000;
  --fg:#e5e7eb;
  --rows:20;
  --size:clamp(12px,1.7vmin,22px);
  --gap:55px;           
  --shadow:0 0 10px rgba(255,255,255,.08);
  --speed:60;           
  --sep-tight:10px;    
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "DejaVu Sans Mono", "IBM Plex Mono",
    "JetBrains Mono", monospace;
}

/* 6E 65 72 6C 62 68 67 75 72 72 70 75 62 62 65 67 75 72 66 62 68 65 70 72 */
#app{ position:fixed; inset:0; display:flex; flex-direction:column; }
.row{ flex:1 1 0; display:grid; grid-template-columns:1fr 1fr; overflow:hidden; }

.half{ position:relative; overflow:hidden; }
.half-left  { background:#fff; }
.half-right { background:#000; }

/* 6E 65 72 6C 62 68 62 61 72 7A 62 65 72 62 65 67 75 72 62 61 72 */

.track{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  display:inline-flex;
  white-space:nowrap;
  will-change:transform;
}

/* 6E 65 72 6C 62 68 6E 61 68 7A 6F 72 65 62 65 6E 61 6E 7A 72 */

.half-right .track{ left:0; }   
.half-left  .track{ right:0; }  


.tile{ flex:none; }
.sequence{ display:inline-flex; }


.item{
  display:inline-block;
  margin:0 var(--gap);
  font-size:var(--size);
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  line-height:1;
  color:var(--fg);
  text-shadow:var(--shadow);
  pointer-events:none;

}

/* 6E 65 72 6C 62 68 6E 63 6E 67 67 72 65 61 62 65 67 75 72 72 6B 70 72 63 67 76 62 61 67 75 6E 67 61 6E 7A 72 66 76 67 */

.item{ margin:0 var(--gap); }


.item.sep{
  margin-left:  calc(var(--sep-tight) - var(--gap));
  margin-right: calc(var(--sep-tight) - var(--gap));
}

/* 43 45 42 49 52 20 56 47 */

.half-left .item{
  color:#000;
  text-shadow:none;
}
.half-right .item{
  color:#ffffff;
  text-shadow:0 0 6px rgba(255,255,255,.08);
}

body::after{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  z-index:2147483647;                
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0,0,0,.18) 0px,           
      rgba(0,0,0,.18) 1px,
      transparent 2px
    ),
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,.06) 0px,     
      rgba(255,255,255,.06) 1px,
      transparent 2px
    );
  mix-blend-mode: normal;            
}