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);
}

.dg {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: min(100%, 320px);
}

.dg:focus-visible {
  outline: 2px solid #17141a;
  outline-offset: 4px;
  border-radius: 16px;
}

.dg__bar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dg__title {
  flex: 1 1 auto;
  color: #17141a;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.3;
}

.dg__speed {
  flex: 0 0 auto;
  padding: 4px 8px;
  border-radius: 999px;
  background: #17141a;
  color: #fff7e6;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-weight: 700;
  font-size: 11px;
  line-height: 1.3;
}

.dg__frame {
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.dg__track {
  display: flex;
  touch-action: pan-y;
  cursor: grab;
  transform: translate3d(0, 0, 0);
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform;
}

.dg__track:active {
  cursor: grabbing;
}

.dg__slide {
  position: relative;
  flex: 0 0 100%;
}

.dg__ph {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  -webkit-user-drag: none;
  user-select: none;
}

.dg__ph--a {
  background: radial-gradient(40% 32% at 74% 22%, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0) 72%), repeating-linear-gradient(196deg, rgba(255, 255, 255, 0.07) 0 5px, rgba(255, 255, 255, 0) 5px 13px), linear-gradient(180deg, rgba(255, 255, 255, 0) 44%, rgba(23, 20, 26, 0.46) 100%), linear-gradient(196deg, #0a4fe8 0%, #6ec8ff 54%, #17141a 100%);
}

.dg__ph--e {
  background: radial-gradient(40% 32% at 66% 34%, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0) 72%), repeating-linear-gradient(160deg, rgba(255, 255, 255, 0.07) 0 5px, rgba(255, 255, 255, 0) 5px 13px), linear-gradient(180deg, rgba(255, 255, 255, 0) 44%, rgba(23, 20, 26, 0.46) 100%), linear-gradient(160deg, #4cd4a6 0%, #6ec8ff 54%, #2f6df6 100%);
}

.dg__ph--c {
  background: radial-gradient(40% 32% at 58% 18%, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0) 72%), repeating-linear-gradient(208deg, rgba(255, 255, 255, 0.07) 0 5px, rgba(255, 255, 255, 0) 5px 13px), linear-gradient(180deg, rgba(255, 255, 255, 0) 44%, rgba(23, 20, 26, 0.46) 100%), linear-gradient(208deg, #17141a 0%, #5b8cf8 54%, #231f28 100%);
}

.dg__ph--d {
  background: radial-gradient(40% 32% at 44% 30%, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0) 72%), repeating-linear-gradient(184deg, rgba(255, 255, 255, 0.07) 0 5px, rgba(255, 255, 255, 0) 5px 13px), linear-gradient(180deg, rgba(255, 255, 255, 0) 44%, rgba(23, 20, 26, 0.46) 100%), linear-gradient(184deg, #6ec8ff 0%, #fff7e6 54%, #2b9d74 100%);
}

.dg__cap {
  position: absolute;
  left: 8px;
  bottom: 8px;
  max-width: calc(100% - 16px);
  padding: 4px 8px;
  border-radius: 8px;
  background: #0a4fe8;
  color: #fff7e6;
  font-weight: 700;
  font-size: 11px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dg__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.dg__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(23, 20, 26, 0.42);
  cursor: pointer;
  transform-origin: 50% 50%;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), background 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.dg__dot[aria-current=true] {
  background: #17141a;
  transform: scale(1.5);
}

.dg__dot:focus-visible {
  outline: 2px solid #17141a;
  outline-offset: 3px;
}

@media (max-width: 340px) {
  .dg {
    width: min(100%, 216px);
    gap: 4px;
  }
  .dg__title {
    font-size: 11px;
  }
  .dg__speed {
    font-size: 10px;
    padding: 0 4px;
  }
  .dg__cap {
    font-size: 10px;
    left: 4px;
    bottom: 4px;
  }
  .dg__dots {
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .dg__track, .dg__dot {
    transition: none !important;
  }
}