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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.grid-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.grid {
  appearance: none;
  border: none;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 16px;
  border-radius: 16px;
}
.grid:focus-visible {
  outline: 2px solid #4cd4a6;
  outline-offset: 4px;
}

.grid__cells {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  padding: 12px;
  border-radius: 8px;
  background: rgba(76, 212, 166, 0.08);
}

.grid__cell {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: #4cd4a6;
  opacity: 0.16;
  will-change: opacity, transform;
}

.grid__label {
  color: #fff7e6;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.grid__status {
  margin: 0;
  color: rgba(255, 247, 230, 0.68);
  font-weight: 500;
  font-size: 12px;
  line-height: 1.2;
}

@media (max-width: 340px) {
  .stage {
    padding: 8px;
  }
  .grid-wrap {
    gap: 8px;
  }
  .grid {
    padding: 8px 12px;
    gap: 8px;
  }
  .grid__cells {
    gap: 0;
    padding: 4px;
  }
  .grid__cell {
    width: 11px;
    height: 11px;
  }
  .grid__label {
    font-size: 12px;
  }
  .grid__status {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .grid__cell {
    transition: none;
  }
}