/* ============================================
   듀얼 프리미엄 카드 레이아웃
   Pretendard · 입체감 · 고급 오디오 조작부 라인
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

.lotto-page {
  min-height: 100vh;
  background: radial-gradient(ellipse at 50% 100%, #0d0d0d 0%, #050505 50%, #000 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1rem 2rem;
  overflow-x: hidden;
}

/* ========== 카드 컨테이너 (가로 배치) ========== */
.card-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 560px;
  width: 100%;
  will-change: transform;
}

/* ========== 프리미엄 카드 공통 - 레트로 TV 베젤 ========== */
.premium-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 160px;
  border: 10px solid #222;
  border-radius: 40px / 20px;
  cursor: pointer;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  will-change: transform;
}

.premium-card:hover,
.premium-card:focus,
.premium-card:active { outline: none; }

/* 레트로 TV 볼록 플라스틱 질감 + 공중 부유감 */
.premium-card {
  box-shadow:
    inset 2px 2px 5px rgba(255, 255, 255, 0.1),
    inset -2px -2px 5px rgba(0, 0, 0, 0.5),
    0 20px 40px rgba(0, 0, 0, 0.5),
    0 8px 16px rgba(0, 0, 0, 0.3);
}

/* 스캔라인 (레트로 CRT) */
.card-scanline {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 3px
  );
  pointer-events: none;
}

/* 내부 빛 응축 레이어 */
.card-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

/* ========== 왼쪽 카드 - 골드 그라데이션 + 반짝임 ========== */
.card-gold {
  background: linear-gradient(145deg,
    #f5e6a8 0%,
    #e8d05c 25%,
    #d4a017 50%,
    #b8860b 75%,
    #8b6914 100%
  );
  color: #1a0f00;
}

.card-gold .card-glow {
  background: radial-gradient(
    ellipse 90% 70% at 50% 20%,
    rgba(255, 255, 255, 0.4) 0%,
    rgba(255, 255, 255, 0.1) 30%,
    transparent 70%
  );
}

.card-gold.pressed .card-glow {
  opacity: 0.6;
  transform: scale(0.85);
  background: radial-gradient(
    ellipse 60% 40% at 50% 50%,
    rgba(255, 255, 255, 0.5) 0%,
    transparent 70%
  );
}

/* 미세한 반짝임 */
.card-gold::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.25) 0%,
    transparent 100%
  );
  border-radius: 30px 30px 0 0 / 15px 15px 0 0;
  pointer-events: none;
}

.card-gold::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 45%,
    transparent 55%
  );
  pointer-events: none;
  animation: sparkle 4s ease-in-out infinite;
}

@keyframes sparkle {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ========== 오른쪽 카드 - 딥 레드 → 블랙 ========== */
.card-red {
  background: linear-gradient(145deg,
    #8b0000 0%,
    #5c0000 30%,
    #2a0000 60%,
    #0a0a0a 100%
  );
  color: #fff;
}

.card-red .card-glow {
  background: radial-gradient(
    ellipse 80% 60% at 50% 30%,
    rgba(255, 100, 80, 0.2) 0%,
    transparent 60%
  );
}

.card-red.pressed .card-glow {
  opacity: 0.8;
  transform: scale(0.9);
  background: radial-gradient(
    ellipse 50% 35% at 50% 50%,
    rgba(255, 150, 120, 0.3) 0%,
    transparent 70%
  );
}

/* ========== 타이포그래피 ========== */
.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.5rem 1.25rem 1rem;
  text-align: left;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.card-gold .card-title { color: #1a0f00; }
.card-red .card-title { color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,0.4); }

.card-desc {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.4;
  opacity: 0.85;
}

.card-gold .card-desc { color: #3d2a00; }
.card-red .card-desc { color: rgba(255,255,255,0.85); }

/* ========== 하단 라인 (고급 오디오 조작부) ========== */
.card-footer-lines {
  height: 24px;
  background: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 1px,
    rgba(0, 0, 0, 0.15) 1px,
    rgba(0, 0, 0, 0.15) 2px
  );
  margin-top: auto;
}

.card-red .card-footer-lines {
  background: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 1px,
    rgba(255, 255, 255, 0.08) 1px,
    rgba(255, 255, 255, 0.08) 2px
  );
}

/* ========== 버튼 플래시 (뗄 때) ========== */
.premium-card .btn-flash {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.6) 0%,
    transparent 65%
  );
  opacity: 0;
  pointer-events: none;
  border-radius: 30px / 10px;
}

/* ========== 반응형 ========== */
@media (max-width: 480px) {
  .card-container {
    grid-template-columns: 1fr;
    max-width: 320px;
  }

  .card-title { font-size: 1.05rem; }
  .card-desc { font-size: 0.7rem; }
}