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);
}

.ka {
  width: 100%;
  max-width: 400px;
}

.ka__attract {
  display: block;
  width: 100%;
  padding: 12px;
  margin: 0;
  cursor: pointer;
  border: 0;
  border-radius: 16px;
  background: #fff7e6;
  text-align: left;
  font-family: inherit;
  color: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.ka__attract:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 3px;
}

.ka [hidden] {
  display: none;
}

.ka__promo {
  position: relative;
  display: block;
  overflow: hidden;
  height: clamp(64px, 22vw, 112px);
  border-radius: 8px;
}

.ka__slide {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 4px;
  text-align: center;
  opacity: 0;
  color: #17141a;
}

.ka__slide--a {
  background: #ffd23f;
  opacity: 1;
}

.ka__slide--b {
  background: #4cd4a6;
}

.ka__slide--c {
  background: #ff4d1f;
}

.ka__big {
  font-weight: 800;
  font-size: clamp(20px, 7vw, 34px);
  line-height: 1;
  font-style: normal;
}

.ka__sub {
  font-weight: 700;
  font-size: clamp(11px, 3vw, 14px);
  line-height: 1.2;
  font-style: normal;
}

.ka__bar {
  display: block;
  height: 6px;
  margin: 8px 0;
  border-radius: 999px;
  background: rgba(23, 20, 26, 0.16);
  overflow: hidden;
}

.ka__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: #2f6df6;
  transform: scaleX(0);
  transform-origin: left center;
}

.ka__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 8px;
  border-radius: 12px;
  background: #17141a;
  color: #fff7e6;
  font-weight: 800;
  font-size: clamp(12px, 3.2vw, 15px);
}

.ka__ico {
  width: clamp(18px, 5vw, 24px);
  height: clamp(18px, 5vw, 24px);
  flex: 0 0 auto;
}

.ka__ctaText {
  line-height: 1.2;
}

.ka__order {
  padding: 12px;
  border-radius: 16px;
  background: #fff7e6;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.ka__head {
  margin: 0 0 8px;
  font-weight: 800;
  font-size: clamp(13px, 3.6vw, 17px);
  color: #17141a;
}

.ka__head:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.ka__tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}

.ka__tile {
  width: 100%;
  padding: 12px 8px;
  cursor: pointer;
  border: 2px solid rgba(23, 20, 26, 0.18);
  border-radius: 12px;
  background: #ffffff;
  color: #17141a;
  font-family: inherit;
  font-weight: 800;
  font-size: clamp(12px, 3.2vw, 15px);
}

.ka__tile:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.ka__back {
  width: 100%;
  padding: 8px;
  cursor: pointer;
  border: 0;
  border-radius: 12px;
  background: #17141a;
  color: #fff7e6;
  font-family: inherit;
  font-weight: 700;
  font-size: clamp(11px, 3vw, 13px);
}

.ka__back:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.ka.is-demo .ka__slide {
  animation-name: kaSlide;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

.ka.is-demo .ka__slide--b {
  animation-delay: calc(2s / -3 * 2);
}

.ka.is-demo .ka__slide--c {
  animation-delay: calc(2s / -3);
}

@keyframes kaSlide {
  0% {
    opacity: 1;
  }
  33.34%, 100% {
    opacity: 0;
  }
}
.ka.is-demo .ka__fill {
  animation-name: kaFill;
  animation-duration: 2s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes kaFill {
  0% {
    transform: scaleX(0);
  }
  33.33% {
    transform: scaleX(1);
  }
  33.34% {
    transform: scaleX(0);
  }
  66.66% {
    transform: scaleX(1);
  }
  66.67% {
    transform: scaleX(0);
  }
  100% {
    transform: scaleX(1);
  }
}
.ka.is-demo .ka__ico {
  animation-name: kaTap;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

@keyframes kaTap {
  0%, 100% {
    transform: translateY(0);
  }
  16% {
    transform: translateY(5px);
  }
  32% {
    transform: translateY(0);
  }
  48% {
    transform: translateY(5px);
  }
  64% {
    transform: translateY(0);
  }
}
@media (max-width: 340px) {
  .ka__attract, .ka__order {
    padding: 8px;
  }
  .ka__cta {
    padding: 8px;
  }
  .ka__head {
    margin-bottom: 4px;
  }
  .ka__tiles {
    gap: 4px;
    margin-bottom: 4px;
  }
  .ka__tile {
    padding: 8px 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ka.is-demo .ka__slide,
  .ka.is-demo .ka__fill,
  .ka.is-demo .ka__ico {
    animation: none !important;
  }
  .ka.is-demo .ka__slide--a {
    opacity: 1 !important;
  }
  .ka.is-demo .ka__slide--b,
  .ka.is-demo .ka__slide--c {
    opacity: 0 !important;
  }
  .ka.is-demo .ka__fill {
    transform: scaleX(0.34) !important;
  }
}