/* mosaic-reset: uiverse 컴포넌트 공통 전제 (box-sizing + 기본 sans-serif) */
*, *::before, *::after { box-sizing: border-box; }
:where(body) { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }

/* 단독 동작용 무대 (uiverse: slimy-chipmunk-97) */
html, body { margin: 0; height: 100%; }
body { min-height: 100vh; display: flex; justify-content: center; align-items: center; background: #1a1a1a; }

.glass-radio-group {
  --bg: rgba(255, 255, 255, 0.06);
  --text: #e5e5e5;

  display: flex;
  position: relative;
  background: var(--bg);
  border-radius: 1rem;
  backdrop-filter: blur(12px);
  box-shadow:
    inset 1px 1px 4px rgba(255, 255, 255, 0.2),
    inset -1px -1px 6px rgba(0, 0, 0, 0.3),
    0 4px 12px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  width: fit-content;
}

.glass-radio-group input {
  display: none;
}

.glass-radio-group label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  font-size: 14px;
  padding: 0.8rem 1.6rem;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--text);
  position: relative;
  z-index: 2;
  transition: color 0.3s ease-in-out;
}

.glass-radio-group label:hover {
  color: white;
}

.glass-radio-group input:checked + label {
  color: #fff;
}

.glass-glider {
  position: absolute;
  top: 0;
  bottom: 0;
  width: calc(100% / 3);
  border-radius: 1rem;
  z-index: 1;
  transition:
    transform 0.5s cubic-bezier(0.37, 1.95, 0.66, 0.56),
    background 0.4s ease-in-out,
    box-shadow 0.4s ease-in-out;
}

/* Silver */
#glass-silver:checked ~ .glass-glider {
  transform: translateX(0%);
  background: linear-gradient(135deg, #c0c0c055, #e0e0e0);
  box-shadow:
    0 0 18px rgba(192, 192, 192, 0.5),
    0 0 10px rgba(255, 255, 255, 0.4) inset;
}

/* Gold */
#glass-gold:checked ~ .glass-glider {
  transform: translateX(100%);
  background: linear-gradient(135deg, #ffd70055, #ffcc00);
  box-shadow:
    0 0 18px rgba(255, 215, 0, 0.5),
    0 0 10px rgba(255, 235, 150, 0.4) inset;
}

/* Platinum */
#glass-platinum:checked ~ .glass-glider {
  transform: translateX(200%);
  background: linear-gradient(135deg, #d0e7ff55, #a0d8ff);
  box-shadow:
    0 0 18px rgba(160, 216, 255, 0.5),
    0 0 10px rgba(200, 240, 255, 0.4) inset;
}