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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.nav-c {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 12px;
  width: clamp(240px, 84vw, 380px);
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(100deg, rgba(23, 20, 26, 0.92) 0%, rgba(23, 20, 26, 0.78) 22%, rgba(23, 20, 26, 0.95) 40%, rgba(23, 20, 26, 0.8) 60%, rgba(23, 20, 26, 0.95) 100%);
}

.nav-c::after {
  content: "";
  position: absolute;
  top: 0;
  left: -20%;
  width: 14%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  animation: glint 2s linear infinite;
}

.nav-c__brand {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  white-space: nowrap;
  padding-left: 8px;
  color: #ffffff;
  font-weight: 700;
  font-size: clamp(12px, 3vw, 14px);
  line-height: 1;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.nav-c__menu {
  position: relative;
  z-index: 1;
  min-width: 0;
  flex: 1;
  display: flex;
}

.nav-c__label {
  flex: 1;
  white-space: nowrap;
  text-align: center;
  padding: 8px 0;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  font-size: clamp(10.5px, 2.6vw, 12px);
  line-height: 1;
  font-family: inherit;
}

.nav-c__label--active {
  color: #ffffff;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.nav-c__cta {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  white-space: nowrap;
  border: 0;
  border-radius: 999px;
  background: #ffffff;
  color: #17141a;
  padding: 8px 16px;
  font-weight: 700;
  font-size: clamp(10.5px, 2.6vw, 12px);
  line-height: 1;
  font-family: inherit;
}

@keyframes glint {
  0% {
    left: -20%;
  }
  100% {
    left: 106%;
  }
}
@media (prefers-reduced-motion: reduce) {
  .nav-c::after {
    animation: none;
    opacity: 0;
  }
}