/* =============================================
   payment.css — 코인 충전 결제 UI
   ============================================= */

/* 결제 모달 오버레이 */
.payment-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 10, 30, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: payOverlayIn 0.3s ease-out;
  padding: 20px;
}
.payment-overlay.closing {
  animation: payOverlayOut 0.3s ease-in forwards;
}
@keyframes payOverlayIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes payOverlayOut {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

/* 결제 모달 본체 */
.payment-modal {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(167, 139, 250, 0.15);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  animation: payModalIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes payModalIn {
  0% { opacity: 0; transform: scale(0.9) translateY(20px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* 모달 헤더 */
.payment-header {
  padding: 24px 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.payment-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}
.payment-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.payment-close:hover { color: var(--text-primary); }

/* 현재 잔액 표시 */
.payment-balance {
  padding: 16px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}
.payment-balance-amount {
  font-weight: 700;
  color: #D97706;
  font-size: 18px;
}

/* 패키지 그리드 */
.payment-packages {
  padding: 0 24px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* 패키지 카드 */
.payment-pack {
  position: relative;
  padding: 20px 16px;
  border: 2px solid rgba(167, 139, 250, 0.15);
  border-radius: var(--radius-md);
  background: rgba(250, 245, 255, 0.5);
  cursor: pointer;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.payment-pack:hover {
  border-color: rgba(167, 139, 250, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(167, 139, 250, 0.12);
}
.payment-pack.selected {
  border-color: var(--violet-500);
  background: rgba(167, 139, 250, 0.08);
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.15);
}
.payment-pack.popular::before {
  content: 'BEST';
  position: absolute;
  top: -10px;
  right: 12px;
  background: linear-gradient(135deg, #D97706, #F59E0B);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 10px;
  letter-spacing: 1px;
}
.payment-pack-coins {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.payment-pack-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.payment-pack-price {
  font-size: 16px;
  font-weight: 700;
  color: #D97706;
}
.payment-pack-unit {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 결제 버튼 */
.payment-actions {
  padding: 0 24px 24px;
}
.payment-buy-btn {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--violet-500), var(--violet-600, #7C3AED));
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.payment-buy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.3);
}
.payment-buy-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.payment-buy-btn.loading {
  pointer-events: none;
}

/* 결제 성공 */
.payment-success {
  text-align: center;
  padding: 40px 24px;
}
.payment-success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05));
  border: 2px solid rgba(34, 197, 94, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes successPop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}
.payment-success-icon svg {
  width: 32px;
  height: 32px;
  stroke: #22C55E;
}
.payment-success-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.payment-success-coins {
  font-size: 28px;
  font-weight: 700;
  color: #D97706;
  margin-bottom: 4px;
}
.payment-success-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.payment-success-btn {
  padding: 12px 32px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--text-accent);
  cursor: pointer;
  transition: all 0.3s;
}
.payment-success-btn:hover {
  background: rgba(167, 139, 250, 0.08);
}

/* 안내 문구 */
.payment-notice {
  padding: 0 24px 20px;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.6;
}

/* 모바일 반응형 */
@media (max-width: 520px) {
  .payment-modal {
    max-height: 85vh;
  }
  .payment-pack-coins {
    font-size: 22px;
  }
  .payment-pack {
    padding: 16px 12px;
  }
}