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);
}

.drop {
  box-sizing: border-box;
  width: min(280px, 86vw);
}

.drop__zone {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 2px dashed rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  padding: 32px 16px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.12);
  transition: border-color 220ms ease-out, background 220ms ease-out, transform 220ms ease-out;
}
.drop__zone.is-over {
  border-color: #2f6df6;
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.02);
}
.drop__zone:focus-within {
  outline: 2px solid #2f6df6;
  outline-offset: 3px;
}

.drop__icon {
  font-size: 22px;
  line-height: 1;
  color: #17141a;
}

.drop__text {
  font-weight: 600;
  font-size: 13px;
  line-height: 1.4;
  text-align: center;
  font-family: inherit;
  color: #17141a;
}

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

.drop__file {
  margin: 8px 0 0;
  min-height: 16px;
  font-weight: 600;
  font-size: 12px;
  font-family: inherit;
  color: #17141a;
  border-radius: 4px;
  display: inline-block;
}
.drop__file:not(:empty) {
  background: #fff7e6;
  padding: 4px 8px;
}

@media (prefers-reduced-motion: reduce) {
  .drop__zone {
    transition: none;
  }
}