:root {
  color-scheme: light;
  --fade-time: 1100ms;
  --glow-red: 220 0 0;
  --paper-edge: #f3ecdf;
  --paper-edge-rgb: 243 236 223;
  --mobile-bg-height: calc(180.59vw - 36.12px);
  --mobile-bg-half-height: calc(90.295vw - 18.06px);
}

@font-face {
  font-family: "EB Garamond";
  src: url("EBGaramond-VariableFont_wght.ttf") format("truetype");
  font-weight: 400 800;
  font-style: normal;
  font-display: block;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overscroll-behavior: none;
  touch-action: none;
}

body {
  overflow: hidden;
  background: var(--paper-edge);
  font-family: system-ui, sans-serif;
}

html {
  background: var(--paper-edge);
}

.paper {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--paper-edge);
}

.artboard {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--paper-edge);
  isolation: isolate;
}

.mobile-disclaimer {
  display: none;
}

.desktop-disclaimer {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 14px;
  width: 92vw;
  max-width: 980px;
  margin: 0;
  transform: translateX(-50%);
  color: #6f6048;
  font-family: "EB Garamond", Georgia, "Times New Roman", serif;
  font-size: 10px;
  font-weight: 450;
  line-height: 1.18;
  text-align: center;
  white-space: nowrap;
  pointer-events: none;
}

.background,
.letter-map,
.edge-fade {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.background {
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--fade-time) ease;
  user-select: none;
  -webkit-user-drag: none;
}

.letter-map {
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
}

@media (min-aspect-ratio: 3 / 2) {
  .letter-map {
    min-width: 0;
    min-height: 0;
    width: 100vw;
    height: 66.6667vw;
    top: 50%;
    right: auto;
    bottom: auto;
    left: 0;
    transform: translateY(-50%);
  }
}

@media (max-aspect-ratio: 3 / 2) {
  .background {
    width: 100vw;
    height: 66.6667vw;
    top: 50%;
    right: auto;
    bottom: auto;
    left: 0;
    object-fit: fill;
    transform: translateY(-50%);
  }

  .letter-map {
    min-width: 0;
    min-height: 0;
    width: 100vw;
    height: 66.6667vw;
    top: 50%;
    right: auto;
    bottom: auto;
    left: 0;
    transform: translateY(-50%);
  }
}

body.is-loaded .background {
  opacity: 1;
}

.letter-map {
  z-index: 2;
  opacity: 0;
  transition: opacity var(--fade-time) ease;
}

body.is-loaded .letter-map {
  opacity: 1;
}

.letter-highlight {
  fill: rgb(var(--glow-red) / 0);
  stroke: rgb(var(--glow-red) / 0);
  stroke-width: 7;
  stroke-linejoin: round;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  pointer-events: all;
  cursor: pointer;
  filter: drop-shadow(0 0 0 rgb(var(--glow-red) / 0));
  transition:
    fill 380ms ease,
    stroke 380ms ease,
    filter 520ms ease;
}

.letter-highlight:hover,
.letter-highlight:focus-visible {
  fill: rgb(var(--glow-red) / 0.3);
  stroke: rgb(var(--glow-red) / 0.98);
  filter:
    drop-shadow(0 0 8px rgb(var(--glow-red) / 0.8))
    drop-shadow(0 0 22px rgb(var(--glow-red) / 0.65));
  outline: none;
  transition:
    fill 180ms ease,
    stroke 180ms ease,
    filter 180ms ease;
}

.edge-fade {
  z-index: 3;
  pointer-events: none;
  background:
    linear-gradient(90deg,
      var(--paper-edge) 0,
      rgb(var(--paper-edge-rgb) / 0.96) 0.35%,
      rgb(var(--paper-edge-rgb) / 0.82) 0.8%,
      rgb(var(--paper-edge-rgb) / 0.62) 1.25%,
      rgb(var(--paper-edge-rgb) / 0.4) 1.8%,
      rgb(var(--paper-edge-rgb) / 0.2) 2.4%,
      rgb(var(--paper-edge-rgb) / 0.07) 2.85%,
      rgb(var(--paper-edge-rgb) / 0) 3%,
      rgb(var(--paper-edge-rgb) / 0) 97%,
      rgb(var(--paper-edge-rgb) / 0.07) 97.15%,
      rgb(var(--paper-edge-rgb) / 0.2) 97.6%,
      rgb(var(--paper-edge-rgb) / 0.4) 98.2%,
      rgb(var(--paper-edge-rgb) / 0.62) 98.75%,
      rgb(var(--paper-edge-rgb) / 0.82) 99.2%,
      rgb(var(--paper-edge-rgb) / 0.96) 99.65%,
      var(--paper-edge) 100%),
    linear-gradient(180deg,
      var(--paper-edge) 0,
      rgb(var(--paper-edge-rgb) / 0.96) 0.35%,
      rgb(var(--paper-edge-rgb) / 0.82) 0.8%,
      rgb(var(--paper-edge-rgb) / 0.62) 1.25%,
      rgb(var(--paper-edge-rgb) / 0.4) 1.8%,
      rgb(var(--paper-edge-rgb) / 0.2) 2.4%,
      rgb(var(--paper-edge-rgb) / 0.07) 2.85%,
      rgb(var(--paper-edge-rgb) / 0) 3%,
      rgb(var(--paper-edge-rgb) / 0) 97%,
      rgb(var(--paper-edge-rgb) / 0.07) 97.15%,
      rgb(var(--paper-edge-rgb) / 0.2) 97.6%,
      rgb(var(--paper-edge-rgb) / 0.4) 98.2%,
      rgb(var(--paper-edge-rgb) / 0.62) 98.75%,
      rgb(var(--paper-edge-rgb) / 0.82) 99.2%,
      rgb(var(--paper-edge-rgb) / 0.96) 99.65%,
      var(--paper-edge) 100%);
}

@media (max-width: 700px) {
  html,
  body,
  .paper,
  .artboard {
    background: var(--paper-edge);
  }

  .background,
  .letter-map {
    min-width: 0;
    min-height: 0;
    width: calc(270.88vw - 54.18px);
    height: var(--mobile-bg-height);
    top: 50%;
    right: auto;
    bottom: auto;
    left: calc(23.78px - 86.13vw);
    transform: translateY(-50%);
  }

  .mobile-disclaimer {
    position: absolute;
    z-index: 4;
    display: grid;
    place-items: center;
    top: 0;
    bottom: auto;
    left: 50%;
    height: max(0px, calc(50vh - var(--mobile-bg-half-height)));
    width: min(92vw, 360px);
    margin: 0;
    transform: translateX(-50%);
    color: #6f6048;
    font-family: "EB Garamond", Georgia, "Times New Roman", serif;
    font-size: clamp(5px, 2.45vw, 9.5px);
    font-weight: 450;
    line-height: 1.1;
    text-align: center;
    white-space: nowrap;
  }

  .desktop-disclaimer {
    display: none;
  }

  .background {
    object-fit: fill;
  }

  .edge-fade {
    display: block;
    background:
      linear-gradient(180deg,
        rgb(var(--paper-edge-rgb) / 0.5) 0,
        rgb(var(--paper-edge-rgb) / 0.28) 2.2%,
        rgb(var(--paper-edge-rgb) / 0.1) 4.8%,
        rgb(var(--paper-edge-rgb) / 0) 7%,
        rgb(var(--paper-edge-rgb) / 0) 93%,
        rgb(var(--paper-edge-rgb) / 0.1) 95.2%,
        rgb(var(--paper-edge-rgb) / 0.28) 97.8%,
        rgb(var(--paper-edge-rgb) / 0.5) 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .background,
  .letter-map,
  .letter-highlight {
    transition-duration: 1ms;
  }
}