@font-face {
  font-family: "Old English Gothic Pixel";
  src: url("./assets/fonts/OldEnglishGothicPixelRegular.otf")
    format("opentype");
  font-display: block;
}

:root {
  --bg: #ffffff;
  --fg: #050505;
  --hairline: rgba(0, 0, 0, 0.09);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: "SFMono-Regular", "SF Mono", Consolas, "Liberation Mono", Menlo,
    monospace;
  cursor: default;
  touch-action: none;
}

.replay-button {
  appearance: none;
  -webkit-appearance: none;
  position: fixed;
  left: 18px;
  top: 18px;
  z-index: 4;
  border: 0;
  border-bottom: 1px solid currentColor;
  padding: 0 0 2px;
  background: transparent;
  color: rgba(0, 0, 0, 0.74);
  font: 700 0.72rem/1 "SFMono-Regular", "SF Mono", Consolas,
    "Liberation Mono", Menlo, monospace;
  cursor: pointer;
}

.replay-button:hover,
.replay-button:focus-visible {
  color: var(--fg);
  outline: none;
}

.replay-button:active {
  transform: translateY(1px);
}

.replay-button span {
  display: inline-block;
  font-size: 1.05rem;
  line-height: 0;
  transform: translateY(1px);
}

.stage.replaying h1 span,
.stage.replaying .links a {
  animation-name: none;
}

.stage {
  position: relative;
  display: grid;
  min-height: 100vh;
  place-items: center;
  isolation: isolate;
}

.grid-lines {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: grid-drift 18s linear infinite;
  mask-image: radial-gradient(circle at center, #000 0 34%, transparent 72%);
}

.grid-lines::after {
  position: absolute;
  inset: 24px;
  border: 1px solid var(--hairline);
  content: "";
}

.wordmark {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 16px;
  padding: 32px;
  text-align: center;
}

h1 {
  position: relative;
  display: flex;
  justify-content: center;
  margin: 0;
  font-family: "Old English Gothic Pixel", "Courier New", monospace;
  font-size: clamp(2.5rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
  text-transform: lowercase;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: none;
  font-smooth: never;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.16);
}

h1 span {
  display: inline-block;
  animation: letter-drop 780ms steps(1, end) both;
  animation-delay: calc(var(--i) * 42ms);
  will-change: transform, opacity;
}

@keyframes letter-drop {
  0% {
    opacity: 0;
    transform: translate(var(--from-x), var(--from-y));
  }

  12% {
    opacity: 1;
    transform: translate(
      calc(var(--from-x) * 0.7),
      calc(var(--from-y) * 0.7)
    );
  }

  24% {
    transform: translate(
      calc(var(--from-x) * 0.46),
      calc(var(--from-y) * 0.46)
    );
  }

  36% {
    transform: translate(
      calc(var(--from-x) * 0.22),
      calc(var(--from-y) * 0.22)
    );
  }

  48% {
    transform: translate(0.34rem, -0.24rem);
  }

  58% {
    opacity: 1;
    transform: translate(-0.22rem, 0.18rem);
  }

  68% {
    transform: translate(0.16rem, 0);
  }

  78% {
    transform: translate(-0.08rem, -0.08rem);
  }

  88% {
    transform: translate(0.04rem, 0.04rem);
  }

  100% {
    opacity: 1;
    transform: translate(0, 0);
  }
}

.home-link {
  color: inherit;
  text-decoration: none;
}

.home-link:focus-visible {
  outline: 1px solid var(--fg);
  outline-offset: 8px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.links a {
  position: relative;
  display: inline-grid;
  min-width: 7ch;
  place-items: center;
  border: 1px solid rgba(0, 0, 0, 0.28);
  padding: 7px 10px 6px;
  background: rgba(255, 255, 255, 0.72);
  color: rgba(0, 0, 0, 0.74);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  opacity: 1;
  transform: translateY(12px);
  transition:
    background 90ms steps(1, end),
    color 90ms steps(1, end),
    transform 90ms steps(1, end);
  animation: link-arrive 360ms steps(1, end) both;
  animation-delay: calc(820ms + var(--link-i) * 80ms);
}

.links a:hover,
.links a:focus-visible,
.links a.active {
  background: var(--fg);
  color: var(--bg);
  outline: none;
  transform: translateY(-2px);
}

@keyframes link-arrive {
  0% {
    opacity: 0;
    transform: translateY(12px);
  }

  38% {
    opacity: 1;
    transform: translateY(-4px);
  }

  62% {
    transform: translateY(2px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.links a:active {
  transform: translate(2px, 1px);
}

.pages {
  position: relative;
  width: min(640px, calc(100vw - 40px));
  min-height: 74px;
  margin-top: 2px;
  color: rgba(0, 0, 0, 0.62);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.45;
}

.page {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: start;
  justify-items: stretch;
  opacity: 0;
  transform: translateY(4px);
  visibility: hidden;
  transition:
    opacity 120ms steps(2, end),
    transform 120ms steps(2, end),
    visibility 0s linear 120ms;
}

.page.active {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  transition:
    opacity 120ms steps(2, end),
    transform 120ms steps(2, end);
}

.page.exiting {
  visibility: visible;
  opacity: 0;
  transform: translateY(-4px);
}

.page p {
  margin: 0;
  padding: 0;
  text-align: left;
}

.page p + p {
  margin-top: 10px;
}

.ascii-field {
  position: fixed;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.glyph {
  position: absolute;
  left: 0;
  top: 0;
  color: rgba(0, 0, 0, 0.38);
  font-size: var(--size);
  line-height: 1;
  opacity: 0;
  transform: translate3d(var(--x), var(--y), 0);
  will-change: opacity;
}

.glyph.revealed {
  opacity: 1;
}

.ambient-glyph {
  position: absolute;
  left: 0;
  top: 0;
  color: rgba(0, 0, 0, 0.22);
  font-size: 13px;
  line-height: 1;
  opacity: 0;
  transform: translate3d(var(--x), var(--y), 0);
  animation: border-flicker var(--speed) steps(1, end) infinite;
  animation-delay: var(--delay);
}

@keyframes border-flicker {
  0%,
  14%,
  31%,
  100% {
    opacity: 0;
  }

  15%,
  18% {
    opacity: 0.42;
  }

  32%,
  33% {
    opacity: 0.2;
  }

  58%,
  61% {
    opacity: 0.34;
  }
}

@keyframes grid-drift {
  0% {
    background-position: 0 0, 0 0;
  }

  100% {
    background-position: 48px 48px, 48px 48px;
  }
}

@media (max-width: 640px) {
  .replay-button {
    left: 14px;
    top: 14px;
    font-size: 0.68rem;
  }

  .grid-lines {
    background-size: 32px 32px;
    animation-name: grid-drift-mobile;
  }

  .grid-lines::after {
    inset: 14px;
  }

  .wordmark {
    width: min(100%, 420px);
    padding: 20px;
  }

  h1 {
    font-size: clamp(2.35rem, 14vw, 4.5rem);
  }

  .links {
    gap: 8px;
  }

  .links a {
    min-width: 6.5ch;
    padding: 7px 8px 6px;
    font-size: 0.68rem;
  }

  .pages {
    width: min(360px, calc(100vw - 32px));
    min-height: 104px;
    font-size: 0.7rem;
  }
}

@keyframes grid-drift-mobile {
  0% {
    background-position: 0 0, 0 0;
  }

  100% {
    background-position: 32px 32px, 32px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .grid-lines {
    animation: none;
  }

  h1 span {
    animation: none;
  }

  .ambient-glyph {
    animation: none;
  }

  .links a {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }

  .page,
  .page.active {
    animation: none;
  }
}