:root {
  --strings: #6b6b70;
  --bone: #f4efe1;
  --bone-line: #3a3630;
  --wood: #b5804a;
  --wood-dark: #6e4521;
  --hook: #4a4a4f;
  --bg: #8f5100;
}

@font-face {
  font-display: block;
  font-family: 'Dem Letters';
  font-style: normal;
  font-weight: 400;
  src: url('dem-letters.woff2') format('woff2');
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Dem Letters', system-ui, -apple-system, sans-serif;
  color: #1d1d1f;
  background: var(--bg) url('dem-bats.png');
  backdrop-filter: blur(0.5px) brightness(70%);
}

main {
  min-height: 100vh;
  min-height: 100dvh;
}

button {
  font-family: inherit;
  font-size: 2rem;
  padding: 6px 48px 0;
  border: 0;
  border-radius: 12px;
  background: #2f6fde;
  color: #fff;
  text-align: center;
  cursor: pointer;
}

.status {
  color: #fff;
  background: #000;
  padding: 4px 12px;
  border-radius: 4px;
  opacity: 1;
  transition: all 0.5s;
  margin: 0;
  position: fixed;
  text-align: center;
  max-width: 90vw;

  &#desktop-status {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
  }

  &#mobile-status {
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
  }

  &[data-status="attention"] {
    color: #ffc374;
    font-size: 2rem;
    animation: get-attention 1s infinite alternate;
  }

  &[data-status="hidden"] {
    opacity: 0;
  }
}

#qr {
  position: fixed;
  top: 16px;
  right: 16px;
  background: #fff;
  padding: 8px;
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.25s;
  cursor: pointer;

  &.visible {
    opacity: 1;
  }
}

#dem-theatres {
  display: block;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;

  g {
    * {
      fill: var(--bone);
      stroke: var(--bone-line);
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .hole { fill: var(--bone-line); }
    .line { fill: none; }
  }

  .strings line {
    stroke: var(--strings);
    stroke-width: 1.5;
  }
}

.hide-strings .strings {
  display: none;
}

#mobile-instructions {
  position: fixed;
  font-size: 1.125rem;
  background: #ddd;
  color: #000;
  margin: 0 auto;
  padding: 8px 12px;
  border-radius: 2px;
  bottom: 2vh;
  bottom: 2dvh;
  left: 50%;
  max-width: 90vw;
  transform: translateX(-50%);
}

#control {
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(75vw, 50dvh);
  height: min(75vw, 50dvh);
  transform: translate(-50%, -50%);

  .wood {
    fill: var(--wood);
    stroke: var(--wood-dark);
    stroke-width: 2;
  }
  .grain { fill: none;
    stroke: var(--wood-dark);
    stroke-width: 1.5;
    stroke-linecap: round;
    opacity: 0.4;
  }
  .eye { fill: none;
    stroke: var(--hook);
    stroke-width: 2.5;
  }
}

#mobile-buttons {
  button {
    font-size: 1rem;

    &:not(#start) {
      display: none;
    }

    &#start {
      /* Before play starts: move to center and enlarge: */
      position: fixed;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      font-size: 2rem;
    }
  }
}

#mobile[data-started] {
  #mobile-buttons {
    position: fixed;
    bottom: 16px;
    left: 16px;
    display: flex;
    gap: 8px;

    button {
      padding: 4px 12px;
      font-size: 1rem;

      &:not(#start) {
        display: block;
      }
    }
  }

  #start {
    /* Put it back where it belongs, it's now the Recalibrate button */
    position: static;
    transform: none;
  }
}

#qr-copied {
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  border-radius: 8px;
  background: rgb(0 0 0 / 0.8);
  color: #fff;
  font-weight: 600;
  text-align: center;
  pointer-events: none;

  &[hidden] {
    display: none;
  }
}

#about-button, #fullscreen-button {
  position: absolute;
  bottom: 1vw;
  left: 1vw;
  border-radius: 50%;
  width: max(45px, min(6vw, 6vh));
  height: max(45px, min(6vw, 6vh));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: min(0.75vw, 0.75vh);
}

#about {
  position: fixed;
  top: 8vh;
  width: min(84vw,900px);
  height: 84vh;
  margin: 0 auto;
  padding: 12px 24px;
  box-shadow: 8px 8px 24px #0007;
  overflow: hidden auto;
  text-align: left;
  user-select: text;
  flex-direction: column;
  gap: 1rem;
  background: #fff url('dem-pumpkins.png');
  font-size: 1.4rem;
  transition: opacity 0.3s, transform 0.5s;

  /* Exit end state: */
  opacity: 0;
  transform: scale(0) rotateZ(-14deg);

  &:popover-open {
    /* Enter end state/exit start state: */
    display: flex;
    opacity: 1;
    transform: scale(1) rotateZ(2deg);

    /* Enter start state: */
    @starting-style {
      opacity: 0;
      transform: scale(0) rotateZ(-14deg);
    }
  }

  h1, h2, p {
    margin: 0;
  }

  h1 {
    text-align: center;
    font-size: 3.5rem;
    animation: boogie-text 4.5s infinite;
    color: #dd8a00;
    -webkit-text-stroke: 0.5px #8a5600;
    font-weight: bold;
  }

  h2 {
    font-size: 2rem;
    text-decoration: dotted underline;
  }

  p, li {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.4;
  }

  a {
    display: inline-block;
    transition: transform 0.15s;
    padding: 0 0.2ch;
    margin: 0.1ch;
    border-radius: 2px;

    &:hover, &:focus {
      transform: scale(1.1) rotateZ(-2deg);
    }

    &:not(:has(.dan-q)) {
      background-color: #dd8a00;
      color: white;
    }

    &:has(.dan-q) {
      background-color: white;
      vertical-align: sub;

      &:hover, &:focus {
        transform: scale(1.3) rotateZ(-3deg);
      }
    }
  }

  .dan-q {
    height: 1.6rem;
    width: auto;
    border-bottom: 2px solid #dd8a00;
  }

  hr {
    width: 100%;
    height: 1px;
  }
}

::backdrop {
  background-color: #0003;
  transition: opacity 0.3s, backdrop-filter 0.95s;
  opacity: 0;
}

:popover-open::backdrop {
  backdrop-filter: blur(4px);
  opacity: 1;

  @starting-style {
    opacity: 0;
  }
}

#fullscreen-button {
  left: auto;
  right: 1vw;

  &[hidden] {
    display: none;
  }

  svg {
    width: 100%;
    height: 100%;
    fill: none;
    stroke: #fff;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  /* Show the icon for whichever change a click will make. */
  .exit { display: none; }
  :root:fullscreen & .enter { display: none; }
  :root:fullscreen & .exit { display: inline; }
}


@keyframes get-attention {
  from { zoom: 1; }
  to { zoom: 1.1; }
}

@keyframes boogie-text {
  0% {
    transform: scaley(1) skewx(0deg);
  }
  12% {
    transform: scaley(1.2) translatey(-20%);
  }
  25% {
    transform: scaley(1) skewx(0deg);
  }
  37% {
    transform: skewx(20deg) translatex(-0.25em);
  }
  50% {
    transform: scaley(1) skewx(0deg);
  }
  62% {
    transform: skewx(-20deg) translatex(0.25em);
  }
  75% {
    transform: skewx(0deg) skewx(0deg);
  }
  87% {
    transform: scaley(0.8) translatey(10%);
  }
}