* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: #000000;
  color: #ffffff;
  font-family: "Avenir Next", Avenir, "Helvetica Neue", sans-serif;
}

body {
  min-height: 100vh;
}

.screen {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 3vw 4vw;
}

.caption-scroll {
  width: min(1400px, 100%);
  max-height: 100%;
  overflow-y: auto;
  scrollbar-width: none;
}

.caption-scroll::-webkit-scrollbar {
  display: none;
}

.caption-feed {
  width: 100%;
}

.caption-line {
  font-size: clamp(2.8rem, 6.8vw, 7rem);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -0.06em;
  text-align: left;
  margin: 0 0 0.3em;
  word-break: break-word;
}

.caption-line.partial {
  color: #ffffff;
}

.caption-line.final {
  color: rgba(255, 255, 255, 0.78);
}

.caption-placeholder {
  color: rgba(255, 255, 255, 0.42);
}

.caption-spacer {
  height: clamp(2.8rem, 6.8vw, 7rem);
}

.bottom-anchor {
  width: 100%;
  height: 1px;
}