/* ==========================================================================
   BILLING & INVOICING STYLES (OVERFLOW-SAFE, PRODUCTION READY)
   ========================================================================== */

.billing-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.billing-stat-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 0.65rem 0.55rem;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--border-subtle);
  min-width: 0;
  overflow: hidden;
}

.billing-stat-val {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.billing-stat-lbl {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.invoice-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.invoice-item-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 0.8rem;
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.invoice-top-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
  gap: 0.4rem;
}

.invoice-id {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.72rem;
  color: var(--primary-700);
}

.invoice-client-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  word-break: break-word;
}

.invoice-amount {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-900);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

.invoice-case-ref {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  word-break: break-word;
  overflow-wrap: break-word;
}

.invoice-action-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border-subtle);
}

/* Dynamic UPI QR Modal */
.upi-qr-payment-modal {
  text-align: center;
  overflow: hidden;
}

.upi-chamber-badge {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-top: 0.35rem;
  word-break: break-word;
}

.upi-amount-display {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--accent-gold-700);
  margin: 0.35rem 0;
  font-variant-numeric: tabular-nums;
}

.upi-qr-container {
  background: #ffffff;
  padding: 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  display: inline-block;
  margin: 0.35rem auto;
  max-width: 100%;
}

.upi-id-pill {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0.45rem auto;
  max-width: 100%;
  word-break: break-all;
}

.upi-apps-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.72rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
}