.purchase-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.purchase-modal.active {
  display: flex;
  pointer-events: all;
}

.purchase-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.purchase-modal.active .purchase-modal-overlay {
  opacity: 1;
}

.purchase-modal-content {
  position: relative;
  width: 90%;
  max-width: 480px;
  background: rgba(8, 16, 42, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  animation: purchase-modal-appear 0.25s ease;
  z-index: 1;
}

@keyframes purchase-modal-appear {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.purchase-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.purchase-modal-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.purchase-modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: none;
  color: rgba(255,255,255,0.6);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  line-height: 1;
  padding: 0;
}

.purchase-modal-close:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.purchase-modal-product {
  display: flex;
  gap: 14px;
  padding: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  margin-bottom: 20px;
}

.purchase-modal-image {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(255,255,255,0.05);
}

.purchase-modal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.purchase-modal-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  min-width: 0;
}

.purchase-modal-product-name {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.purchase-modal-product-details {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

.purchase-modal-details {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 16px;
}

.purchase-modal-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 14px;
}

.purchase-modal-detail-row:last-child { border-bottom: none; }

.purchase-modal-detail-label {
  color: rgba(255,255,255,0.45);
}

.purchase-modal-detail-value {
  color: #fff;
  font-weight: 600;
}

.purchase-modal-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  margin-bottom: 16px;
}

.purchase-modal-total-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
}

.purchase-modal-total-value {
  font-size: 22px;
  font-weight: 800;
  color: #1E90FF;
}

.purchase-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.purchase-modal-btn {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.purchase-modal-btn-primary {
  background: #1E90FF;
  color: #fff;
}

.purchase-modal-btn-primary:hover {
  background: #4FA3FF;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(30,144,255,0.35);
}

.purchase-modal-btn-primary:active { transform: translateY(0); }

.purchase-modal-btn-secondary {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.65);
}

.purchase-modal-btn-secondary:hover {
  background: rgba(255,255,255,0.07);
  color: #fff;
}

.purchase-modal-promo {
  margin-bottom: 16px;
}

.purchase-modal-promo-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.purchase-modal-promo-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-weight: 400;
  font-family: inherit;
  transition: border-color 0.2s;
  text-transform: uppercase;
}

.purchase-modal-promo-input::placeholder {
  color: rgba(255,255,255,0.3);
  text-transform: none;
}

.purchase-modal-promo-input:focus {
  outline: none;
  border-color: #1E90FF;
}

.purchase-modal-promo-btn {
  width: 100%;
  padding: 12px 16px;
  background: rgba(30,144,255,0.15);
  border: 1px solid rgba(30,144,255,0.4);
  border-radius: 8px;
  color: #1E90FF;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.purchase-modal-promo-btn:hover:not(:disabled) {
  background: rgba(30,144,255,0.22);
}

.purchase-modal-promo-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.purchase-modal-promo-msg {
  margin-top: 6px;
  font-size: 12px;
  min-height: 16px;
}

.purchase-modal-promo-msg.success { color: #4ade80; }
.purchase-modal-promo-msg.error { color: #f87171; }

.purchase-modal-terms {
  font-size: 11px;
  color: rgba(255,255,255,0.28);
  text-align: center;
  line-height: 1.5;
  margin-top: 12px;
}

.purchase-modal-terms a {
  color: rgba(30,144,255,0.65);
  text-decoration: underline;
  transition: color 0.2s;
}

.purchase-modal-terms a:hover { color: #1E90FF; }

.purchase-modal-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

@media screen and (max-width: 600px) {
  .purchase-modal { align-items: flex-end; }

  .purchase-modal-content {
    width: 100%;
    max-width: 100%;
    padding: 24px;
    border-radius: 12px 12px 0 0;
    animation: purchase-modal-appear-mobile 0.3s ease;
  }

  @keyframes purchase-modal-appear-mobile {
    from { opacity: 0; transform: translateY(100%); }
    to { opacity: 1; transform: translateY(0); }
  }

  .purchase-modal-title { font-size: 18px; }
  .purchase-modal-close { width: 32px; height: 32px; font-size: 20px; }
}