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

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

.feat-a {
  margin: 0;
  list-style: none;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: clamp(240px, 80vw, 360px);
  padding: 20px;
  border-radius: 16px;
  background: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.feat-a::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.3;
  mix-blend-mode: overlay;
  background-image: radial-gradient(rgba(255, 255, 255, 0.6) 0.5px, transparent 0.5px), radial-gradient(rgba(23, 20, 26, 0.6) 0.5px, transparent 0.5px);
  background-size: 3px 3px, 5px 5px;
  border-radius: inherit;
}

.feat-a__row {
  position: relative;
  z-index: 1;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.feat-a__icon {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(120deg, #2f6df6, #ffd23f, #ff4d1f, #2f6df6);
  background-size: 200% 100%;
  animation: iconFlow 2s ease-out infinite;
}

.feat-a__text {
  margin: 0;
  color: #ffffff;
  font: 600 clamp(11.5px, 2.8vw, 13px)/1.4 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

@keyframes iconFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}
@media (prefers-reduced-motion: reduce) {
  .feat-a__icon {
    animation: none;
  }
}