@charset "UTF-8";
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);
}

.fv4 {
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(220px, 86vw);
}

.fv4__badge {
  position: relative; /* ::after 서지 링의 기준 — 위치·크기 불변 */
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #4cd4a6;
  display: grid;
  place-items: center;
  color: #17141a;
  opacity: 0;
  transform: scale(0.4);
}

.fv4__path {
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
}

.fv4__badge::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(76, 212, 166, 0.5);
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

.fv4__text {
  font-weight: 600;
  font-size: 14px;
  line-height: 1;
  font-family: inherit;
  color: #2f6df6;
  opacity: 0;
  transform: translateY(4px);
}

@keyframes fv4-badge {
  0%, 10% {
    opacity: 0;
    transform: scale(0.4) rotate(0deg);
  }
  20% {
    transform: scale(0.86) rotate(8deg);
  }
  27% {
    transform: scale(1.02) rotate(-5deg);
  }
  33% {
    transform: scale(1.1) rotate(3deg);
  }
  39% {
    transform: scale(1.04) rotate(-1deg);
  }
  43% {
    transform: scale(1.06) rotate(0deg);
  }
  48% {
    transform: scale(1);
  }
  85%, 100% {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes fv4-surge {
  0%, 30% {
    opacity: 0;
    transform: scale(0.8);
  }
  38% {
    opacity: 0.55;
    transform: scale(1.18);
  }
  50% {
    opacity: 0.12;
    transform: scale(1.32);
  }
  60% {
    opacity: 0.22;
    transform: scale(1.42);
  }
  72% {
    opacity: 0;
    transform: scale(1.48);
  }
  100% {
    opacity: 0;
    transform: scale(1.48);
  }
}
@keyframes fv4-draw {
  0%, 30% {
    stroke-dashoffset: 24;
  }
  55%, 100% {
    stroke-dashoffset: 0;
  }
}
@keyframes fv4-text {
  0%, 30% {
    opacity: 0;
    transform: translateY(4px);
  }
  55%, 100% {
    opacity: 1;
    transform: translateY(0);
  }
}
.fv4.is-demo .fv4__badge {
  animation: fv4-badge 600ms cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.fv4.is-demo .fv4__badge::after {
  animation: fv4-surge 600ms cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.fv4.is-demo .fv4__path {
  animation: fv4-draw 600ms linear infinite;
}

.fv4.is-demo .fv4__text {
  animation: fv4-text 600ms cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .fv4.is-demo .fv4__badge,
  .fv4.is-demo .fv4__badge::after,
  .fv4.is-demo .fv4__path,
  .fv4.is-demo .fv4__text {
    animation: none !important;
  }
  .fv4.is-demo .fv4__badge {
    opacity: 1;
    transform: scale(1);
  }
  .fv4.is-demo .fv4__badge::after {
    opacity: 0;
  }
  .fv4.is-demo .fv4__path {
    stroke-dashoffset: 0;
  }
  .fv4.is-demo .fv4__text {
    opacity: 1;
    transform: translateY(0);
  }
}