#future-portal {
  margin: 8px 0 22px;
  border: 1px dashed #000;
  padding: 9px;
  font-family: "Courier New", Courier, monospace;
}

.future-portal__status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 7px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.future-portal__status span {
  width: 8px;
  height: 8px;
  background: #000;
  animation: coin-blink 1.1s steps(2, end) infinite;
}

#future-portal .future-portal__link,
#future-portal .future-portal__link:link,
#future-portal .future-portal__link:visited {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  border: 2px solid #000;
  padding: 8px 10px;
  color: #000;
  background: #fff;
  text-decoration: none;
  font-style: normal;
  box-shadow: 4px 4px 0 #000;
}

#future-portal .future-portal__link:hover,
#future-portal .future-portal__link:focus-visible {
  color: #fff;
  background: #000;
  box-shadow: 1px 1px 0 #000;
  transform: translate(3px, 3px);
}

.future-portal__link:focus-visible {
  outline: 2px solid #000;
  outline-offset: 4px;
}

.future-portal__icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 2px solid currentColor;
  font-size: 18px;
  line-height: 1;
}

.future-portal__link strong,
.future-portal__link small {
  display: block;
}

.future-portal__link strong {
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.future-portal__link small {
  margin-top: 3px;
  font-family: Palatino, Georgia, serif;
  font-size: 11px;
}

.future-portal__arrow {
  font-size: 18px;
}

.portal-transition {
  --portal-x: 50vw;
  --portal-y: 50vh;
  position: fixed;
  z-index: 10000;
  inset: 0;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
  color: #fff8df;
  background: #05000d;
  clip-path: inset(50% 0 50% 0);
}

.portal-transition::after {
  position: absolute;
  z-index: 8;
  inset: 0;
  content: "";
  opacity: 0.22;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, #000 4px);
  pointer-events: none;
}

.portal-transition__grid,
.portal-transition__pixels,
.portal-transition__ring {
  position: absolute;
  pointer-events: none;
}

.portal-transition__grid {
  inset: -20%;
  opacity: 0;
  background-image:
    linear-gradient(rgba(41, 247, 240, 0.22) 2px, transparent 2px),
    linear-gradient(90deg, rgba(41, 247, 240, 0.22) 2px, transparent 2px);
  background-size: 32px 32px;
  transform: perspective(420px) rotateX(65deg) translateY(28%);
  transform-origin: center bottom;
}

.portal-transition__pixels {
  inset: 0;
  opacity: 0;
  background:
    linear-gradient(90deg, transparent 0 12%, #ff3cac 12% 14%, transparent 14% 62%, #29f7f0 62% 64%, transparent 64% 88%, #ffe75c 88% 90%, transparent 90%),
    linear-gradient(0deg, transparent 0 18%, #8cff3f 18% 20%, transparent 20% 70%, #ff3cac 70% 73%, transparent 73%);
  background-size: 128px 96px;
  image-rendering: pixelated;
}

.portal-transition__ring {
  top: var(--portal-y);
  left: var(--portal-x);
  width: 28px;
  height: 28px;
  border: 4px solid #ffe75c;
  box-shadow:
    0 0 0 8px #ff3cac,
    0 0 0 14px #29f7f0;
  transform: translate(-50%, -50%) scale(0.2) rotate(0deg);
  opacity: 0;
}

.portal-transition__boot {
  position: absolute;
  z-index: 9;
  top: 50%;
  left: 50%;
  width: min(84vw, 500px);
  border: 5px solid #29f7f0;
  padding: 20px;
  font-family: "Courier New", Courier, monospace;
  text-align: left;
  transform: translate(-50%, -50%) scale(0.85);
  opacity: 0;
  background: #16052f;
  box-shadow:
    9px 9px 0 #ff3cac,
    14px 14px 0 #35106a;
}

.portal-transition__boot::before,
.portal-transition__boot::after {
  position: absolute;
  width: 10px;
  height: 10px;
  content: "";
  background: #ffe75c;
}

.portal-transition__boot::before {
  top: -7px;
  left: -7px;
}

.portal-transition__boot::after {
  right: -7px;
  bottom: -7px;
}

.portal-transition__boot span,
.portal-transition__boot strong,
.portal-transition__boot small {
  display: block;
}

.portal-transition__boot span {
  color: #29f7f0;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.portal-transition__boot strong {
  margin: 24px 0 9px;
  color: #ffe75c;
  font-size: clamp(20px, 5vw, 34px);
  letter-spacing: 0.04em;
  text-shadow: 3px 3px 0 #ff3cac;
}

.portal-transition__boot small {
  color: #8cff3f;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

body.portal-opening {
  overflow: hidden;
}

body.portal-opening #content {
  animation: legacy-crt-collapse 800ms steps(8, end) forwards;
}

body.portal-opening > footer {
  animation: legacy-footer-fade 260ms steps(2, end) forwards;
}

body.portal-opening .portal-transition {
  visibility: visible;
  pointer-events: auto;
  animation: arcade-screen-open 1.16s steps(10, end) forwards;
}

body.portal-opening .portal-transition__grid {
  animation: arcade-grid-arrive 900ms 180ms steps(8, end) forwards;
}

body.portal-opening .portal-transition__pixels {
  animation: arcade-pixels-arrive 650ms 250ms steps(6, end) forwards;
}

body.portal-opening .portal-transition__ring {
  animation: coin-burst 620ms steps(6, end) forwards;
}

body.portal-opening .portal-transition__boot {
  animation: player-ready 360ms 650ms steps(5, end) forwards;
}

@keyframes coin-blink {
  50% { opacity: 0.15; }
}

@keyframes legacy-crt-collapse {
  0% { opacity: 1; transform: scale(1); }
  45% { opacity: 1; transform: scaleX(1) scaleY(0.035); }
  75% { opacity: 0.9; transform: scaleX(0.08) scaleY(0.035); }
  100% { opacity: 0; transform: scale(0); }
}

@keyframes legacy-footer-fade {
  to { opacity: 0; }
}

@keyframes arcade-screen-open {
  0% { clip-path: inset(50% 0 50% 0); }
  40% { clip-path: inset(46% 0 46% 0); }
  100% { clip-path: inset(0 0 0 0); }
}

@keyframes coin-burst {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(0.2); }
  70% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(34) rotate(90deg); }
}

@keyframes arcade-grid-arrive {
  from { opacity: 0; transform: perspective(420px) rotateX(65deg) translateY(50%); }
  to { opacity: 1; transform: perspective(420px) rotateX(65deg) translateY(28%); }
}

@keyframes arcade-pixels-arrive {
  0% { opacity: 0; transform: translateY(24px); }
  45% { opacity: 0.6; }
  100% { opacity: 0.2; transform: translateY(0); }
}

@keyframes player-ready {
  from { opacity: 0; transform: translate(-50%, -50%) scale(0.85); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@media (max-width: 520px) {
  #future-portal .future-portal__link {
    grid-template-columns: auto 1fr;
  }

  .future-portal__arrow {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .future-portal__status span {
    animation: none;
  }

  body.portal-opening #content,
  body.portal-opening > footer,
  body.portal-opening .portal-transition,
  body.portal-opening .portal-transition__grid,
  body.portal-opening .portal-transition__pixels,
  body.portal-opening .portal-transition__ring,
  body.portal-opening .portal-transition__boot {
    animation: none;
  }
}