html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.eb {
  width: 100%;
  max-width: 320px;
  display: grid;
  gap: 12px;
}

.eb__field {
  display: block;
}

.eb__input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 16px;
  border-radius: 12px;
  border: 0;
  background: #fff7e6;
  color: #17141a;
  font: 500 16px/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  letter-spacing: 0.04em;
  -webkit-text-security: disc;
}
.eb__input:focus {
  outline: 2px solid #17141a;
  outline-offset: 2px;
}

.eb__bits {
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: #17141a;
}
.eb__bits b {
  font: 800 34px/1 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  font-variant-numeric: tabular-nums;
}
.eb__bits span {
  font: 600 13px/1 -apple-system, sans-serif;
  opacity: 0.75;
}

.eb__track {
  position: relative;
  height: 12px;
  border-radius: 8px;
  background: rgba(23, 20, 26, 0.14);
  overflow: hidden;
}

.eb__fill {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: #2f6df6;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 300ms ease-out;
}

.eb__tick {
  position: absolute;
  top: 0;
  left: var(--tick-at);
  width: 2px;
  height: 100%;
  background: rgba(23, 20, 26, 0.3);
  z-index: 1;
}

.eb__meta {
  font: 600 13px/1.2 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: #17141a;
}
.eb__meta b {
  font-variant-numeric: tabular-nums;
}

@media (max-width: 340px) {
  .eb {
    max-width: 260px;
  }
  .eb__input {
    padding: 8px 12px;
    font-size: 14px;
  }
  .eb__bits b {
    font-size: 26px;
  }
  .eb__meta {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .eb__fill {
    transition: none;
  }
}