/* invoice.css */

.invoice-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: var(--space-4) 0 var(--space-3);
}
.invoice-toggle { display: flex; gap: var(--space-2); }

.invoice-document {
  background: white;
  padding: var(--space-6);
  max-width: 900px;
}

.invoice-header {
  display: flex;
  justify-content: space-between;
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: var(--space-4);
}
.invoice-header h2 { color: var(--color-primary); }
.invoice-id { text-align: right; }
.invoice-type {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  letter-spacing: 1px;
}
.invoice-number {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: var(--space-1);
}

.invoice-parties {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}
.party-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 1px;
  margin-bottom: var(--space-2);
}

.invoice-items {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-4);
}
.invoice-items th, .invoice-items td {
  padding: var(--space-3) var(--space-2);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}
.invoice-items th {
  background: var(--color-bg);
  font-weight: 600;
}

.invoice-totals {
  margin-left: auto;
  width: 50%;
  margin-bottom: var(--space-4);
}
.invoice-totals-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
}
.invoice-totals-final {
  border-top: 2px solid var(--color-primary);
  padding-top: var(--space-3);
  font-size: 1.125rem;
  font-weight: 700;
}
.invoice-totals-final span:last-child { color: var(--color-primary); }

/* B2: 折扣行（绿色 + 中等字号）*/
.invoice-totals-discount {
  color: #16a34a;
  font-weight: 500;
}

.invoice-ddp-note {
  background: var(--color-primary-light);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}
.invoice-ddp-note p { margin: var(--space-1) 0; }

.invoice-po {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* Problem 4: Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal-box {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  max-width: 480px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-secondary);
}
.modal-body { display: flex; flex-direction: column; gap: var(--space-2); }
.confirm-methods { display: flex; flex-direction: column; gap: var(--space-2); }

.invoice-payment { margin-bottom: var(--space-4); }
.invoice-payment h3 { margin-bottom: var(--space-2); }

.payment-accounts {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.payment-account {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.payment-account:hover { border-color: var(--color-primary); }
.payment-account.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.payment-account input { margin-top: 4px; }
.payment-reference {
  background: #FFF8E1;
  border-left: 3px solid #F57C00;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.875em;
}
.payment-reference strong { color: #E65100; }

.invoice-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

.invoice-notes {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  max-width: 900px;
}
.invoice-notes ul { padding-left: var(--space-4); margin-top: var(--space-2); }
.invoice-notes li { margin-bottom: var(--space-1); }

@media print {
  .topbar, .footer, .breadcrumb, .invoice-toolbar, .invoice-actions, .invoice-notes, .fab-contact { display: none !important; }
  .invoice-document { border: none; padding: 0; max-width: 100%; box-shadow: none; }
}

@media (max-width: 768px) {
  .invoice-parties { grid-template-columns: 1fr; }
  .invoice-totals { width: 100%; }
}