:root {
  color-scheme: light;
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", system-ui, sans-serif;
  font-synthesis: none;
  --ink: #161817;
  --text-size: clamp(1.18rem, 0.92rem + 0.58vw, 1.52rem);
  --line-height: 1.54;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: #d8dbd8;
  scroll-behavior: auto;
}

body {
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  background: transparent;
  color: var(--ink);
}

#world-stage {
  position: fixed;
  z-index: 0;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#reader-time {
  position: relative;
  z-index: 1;
  width: 100%;
}

.cadence-unit {
  position: relative;
  width: 100%;
  min-height: var(--unit-scroll, 180svh);
}

.reader-frame {
  position: sticky;
  top: 0;
  display: flex;
  width: 100%;
  height: 100svh;
  padding-block: 27svh 12svh;
  padding-inline: clamp(1.5rem, 7vw, 8.5rem);
  align-items: flex-start;
  pointer-events: none;
}

.poem {
  width: min(46rem, 56vw);
  max-width: 100%;
  font-size: var(--text-size);
  font-weight: 500;
  line-height: var(--line-height);
  letter-spacing: -0.012em;
  text-wrap: pretty;
  word-break: keep-all;
  text-shadow:
    0 1px 0 rgba(244, 245, 242, 0.78),
    0 0 18px rgba(239, 241, 237, 0.72);
}

.poem--wide {
  width: min(56rem, 65vw);
}

.cadence-unit--left .poem {
  margin-right: auto;
}

.cadence-unit--right .poem {
  margin-left: auto;
  margin-right: clamp(0rem, 1.6vw, 1.75rem);
}

.line {
  margin: 0;
}

.line + .line {
  margin-top: 0.76em;
}

.reader-enhanced .line {
  opacity: var(--line-opacity, 1);
}

.timing--dense .reader-frame {
  padding-top: 17svh;
}

.timing--dense .line + .line {
  margin-top: 0.25em;
}

.timing--repetition .line + .line {
  margin-top: 0.3em;
}

.timing--open .reader-frame,
.timing--memory .reader-frame {
  padding-top: 22svh;
}

.timing--open .line + .line {
  margin-top: 0.82em;
}

.timing--memory .line + .line {
  margin-top: 0.66em;
}

.timing--isolated .reader-frame {
  padding-top: 34svh;
}

.timing--temporal-space .reader-frame {
  padding-top: 30svh;
}

.timing--temporal-space .line + .line {
  margin-top: 3.9em;
}

.timing--final .reader-frame {
  padding-top: 39svh;
}

.timing--final .line {
  position: absolute;
  right: clamp(1.5rem, 8.6vw, 10.25rem);
  width: min(46rem, 56vw);
}

.timing--final .line + .line {
  margin-top: 0;
}

.line--run-on {
  overflow-wrap: anywhere;
  word-break: break-all;
  hyphens: none;
}

.cadence-unit--cut .reader-frame {
  padding-top: 43svh;
}

.poem--cut {
  letter-spacing: 0.16em;
}

.scene-cue {
  position: absolute;
  top: var(--cue-position, 50%);
  left: 0;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

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

@media (min-width: 43.8125rem) {
  .presence--hold .poem,
  .line--hold-presence {
    font-size: clamp(1.26rem, 0.98rem + 0.62vw, 1.62rem);
    line-height: 1.5;
  }

  .presence--hold .poem {
    width: min(50rem, 60vw);
  }

  .presence--hold.cadence-unit--left .reader-frame {
    padding-left: clamp(3rem, 9.5vw, 10rem);
  }

  .presence--hold.cadence-unit--right .reader-frame {
    padding-right: clamp(3.25rem, 10vw, 10.5rem);
  }

  .presence--hold.cadence-unit--right .poem {
    margin-right: 0;
  }

  #u8 .reader-frame {
    padding-top: 32svh;
  }

  #u12 .reader-frame,
  #u14 .reader-frame {
    padding-top: 29svh;
  }

  #u15 .line--hold-presence {
    top: 38svh;
    right: clamp(3.25rem, 10vw, 10.5rem);
    width: min(50rem, 60vw);
  }
}

@media (max-width: 43.75rem) {
  :root {
    --text-size: clamp(1.04rem, 0.91rem + 0.68vw, 1.18rem);
    --line-height: 1.56;
  }

  .cadence-unit {
    min-height: var(--unit-scroll-mobile, var(--unit-scroll, 190svh));
  }

  .reader-frame {
    padding-top: 26svh;
    padding-right: 8vw;
    padding-bottom: 12svh;
    padding-left: 6vw;
  }

  .poem,
  .poem--wide {
    width: min(86vw, 38rem);
    letter-spacing: -0.016em;
  }

  .cadence-unit--right .reader-frame {
    padding-right: 5vw;
    padding-left: 10vw;
  }

  .cadence-unit--right .poem {
    margin-right: 0;
  }

  .timing--dense .reader-frame {
    padding-top: 12svh;
  }

  .timing--open .reader-frame,
  .timing--memory .reader-frame {
    padding-top: 18svh;
  }

  .timing--isolated .reader-frame {
    padding-top: 33svh;
  }

  .timing--temporal-space .reader-frame {
    padding-top: 27svh;
  }

  .timing--temporal-space .line + .line {
    margin-top: 3.25em;
  }

  .timing--final .reader-frame {
    padding-top: 40svh;
  }

  .timing--final .line {
    right: 5vw;
    width: min(85vw, 38rem);
  }

  .cadence-unit--cut .reader-frame {
    padding-top: 43svh;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}