:root {
  --ink: #10110d;
  --ink-soft: rgba(16, 17, 13, 0.55);
  --paper: #f4f1e8;
  --paper-dim: rgba(244, 241, 232, 0.55);
  --split: 51%;
  --nudge: 9px;
  --tear: calc(var(--split) - var(--nudge));
  --font: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --split-fill: linear-gradient(
    90deg,
    var(--paper) 0%,
    var(--paper) calc(var(--tear) - 2.8vw),
    #ddd6c6 calc(var(--tear) - 0.8vw),
    #8f8a7e var(--tear),
    #2c2b26 calc(var(--tear) + 0.8vw),
    var(--ink) calc(var(--tear) + 2.8vw),
    var(--ink) 100%
  );
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--ink);
}

body {
  color: var(--paper);
  font-family: var(--font);
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: crosshair;
  overflow: hidden;
}

button,
a {
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

::selection {
  background: var(--paper);
  color: var(--ink);
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.world {
  min-height: 100%;
  background:
    url("../assets/ground.jpg") var(--tear) center / cover no-repeat,
    linear-gradient(90deg, #1c1e17 var(--tear), #e4dece var(--tear));
}

.top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 6;
  display: flex;
  justify-content: center;
  padding-top: 1.15rem;
  pointer-events: none;
}

.brand,
.shop-btn {
  pointer-events: auto;
}

.lockup {
  position: relative;
}

.caption {
  position: absolute;
  left: 0;
  right: 0;
  top: 86%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.62rem;
  pointer-events: none;
}

.brand-slot {
  margin: 0;
  text-align: center;
}

.brand {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.28em;
}

.hud {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.95rem;
  text-align: center;
  z-index: 2;
}

.split {
  display: inline-grid;
}

.split .face {
  grid-area: 1 / 1;
}

.split .dark {
  color: var(--paper);
  -webkit-mask-image: linear-gradient(
    90deg,
    #000 0,
    #000 calc(var(--cut) - 8px),
    transparent calc(var(--cut) + 8px)
  );
  mask-image: linear-gradient(
    90deg,
    #000 0,
    #000 calc(var(--cut) - 8px),
    transparent calc(var(--cut) + 8px)
  );
}

.split .light {
  color: var(--ink);
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent calc(var(--cut) - 8px),
    #000 calc(var(--cut) + 8px)
  );
  mask-image: linear-gradient(
    90deg,
    transparent calc(var(--cut) - 8px),
    #000 calc(var(--cut) + 8px)
  );
}

.clock {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.shop-btn {
  border: 0;
  background: none;
  padding: 0;
  color: inherit;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.22em;
  line-height: 1;
  text-decoration: none;
}

.shop-btn .face {
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.28em;
}

.shop-btn:hover,
.shop-btn:focus-visible {
  opacity: 0.55;
}

.shop-btn:focus-visible {
  outline: none;
}

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
}

.mark {
  position: relative;
  width: min(90vw, 78vh, 980px);
  aspect-ratio: 1;
  -webkit-mask: url("../assets/logo.png") center / contain no-repeat;
  mask: url("../assets/logo.png") center / contain no-repeat;
  animation: tube 2.8s steps(2, end) infinite;
}

.fill {
  position: fixed;
  inset: 0;
  background: var(--split-fill);
  pointer-events: none;
}

.glass {
  position: fixed;
  inset: 0;
  z-index: 8;
  pointer-events: none;
  overflow: hidden;
}

.scanlines {
  position: absolute;
  inset: -20%;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.45) 0px,
    rgba(0, 0, 0, 0.45) 1px,
    transparent 1px,
    transparent 4px
  );
  mix-blend-mode: multiply;
  opacity: 0.42;
  animation: scan 7.5s linear infinite;
}

.roll {
  position: absolute;
  left: -2%;
  right: -2%;
  height: 18vh;
  top: -20vh;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(255, 255, 255, 0.045) 40%,
    rgba(255, 255, 255, 0.09) 50%,
    rgba(255, 255, 255, 0.04) 60%,
    transparent
  );
  mix-blend-mode: screen;
  animation: roll 8.5s linear infinite;
}

.vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 42%, rgba(0, 0, 0, 0.42) 100%);
  box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.35);
}

#noise {
  position: absolute;
  inset: -6%;
  width: 112%;
  height: 112%;
  opacity: 0.16;
  mix-blend-mode: overlay;
}

.defs {
  position: absolute;
  width: 0;
  height: 0;
}

.is-hit .scanlines {
  opacity: 0.85;
  animation-duration: 0.35s;
}

.is-hit .brand {
  animation: jitter 0.14s steps(2, end);
}

.booting .world {
  animation: load-glitch 0.9s linear both;
}

@keyframes load-glitch {
  0% {
    opacity: 0;
  }
  18% {
    opacity: 1;
  }
  27% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  49% {
    opacity: 0.2;
  }
  63% {
    opacity: 1;
  }
  72% {
    opacity: 0.55;
  }
  100% {
    opacity: 1;
  }
}

@keyframes scan {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(12px);
  }
}

@keyframes roll {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(140vh);
  }
}

@keyframes tube {
  0%,
  100% {
    opacity: 1;
  }
  6% {
    opacity: 0.78;
  }
  8% {
    opacity: 1;
  }
  47% {
    opacity: 1;
  }
  48% {
    opacity: 0.9;
  }
  49% {
    opacity: 1;
  }
  81% {
    opacity: 0.84;
  }
  83% {
    opacity: 1;
  }
}

@keyframes slip {
  0% {
    transform: translateX(-14px);
  }
  45% {
    transform: translateX(10px);
  }
  100% {
    transform: none;
  }
}

@keyframes jitter {
  0% {
    transform: translate(0, 0);
  }
  35% {
    transform: translate(-3px, 1px);
  }
  70% {
    transform: translate(3px, -1px);
  }
  100% {
    transform: none;
  }
}

@media (max-width: 720px) {
  .brand {
    font-size: 16px;
    letter-spacing: 0.22em;
  }

  .caption {
    top: calc(100% + 0.85rem);
    gap: 1.05rem;
  }

  .top {
    padding-top: 0.9rem;
  }

  .mark {
    width: min(96vw, 70vh);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

}