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);
}

.ct {
  width: 100%;
  max-width: 300px;
}

.ct__pad {
  width: 100%;
  height: 168px;
  display: grid;
  place-items: center;
  touch-action: none;
}

.ct__card {
  position: relative;
  width: 220px;
  height: 132px;
  border-radius: 16px;
  background: #fff7e6;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  display: grid;
  align-content: space-between;
  padding: 16px;
  box-sizing: border-box;
  overflow: hidden;
  will-change: transform;
}

.ct__chip {
  width: 28px;
  height: 20px;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.78);
}

.ct__num {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: #17141a;
}

.ct__sheen {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle, rgba(91, 140, 248, 0.35), transparent 60%);
  pointer-events: none;
}

@media (max-width: 340px) {
  .ct__card {
    width: 190px;
    height: 114px;
  }
  .ct__pad {
    height: 148px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ct__card, .ct__sheen {
    transition: none;
  }
}