/* ==========================================================================
   POS TERMINAL & BILLING STYLES (Compact & Proportional)
   ========================================================================== */
.pos-wrapper {
  display: grid;
  grid-template-columns: 1.4fr 1.05fr;
  gap: 1.25rem;
  height: calc(100vh - var(--topbar-height) - 3.25rem);
}

@media (max-width: 1200px) {
  .pos-wrapper {
    grid-template-columns: 1fr;
    height: auto;
  }
}

/* POS Left Column: Search & Catalog */
.pos-catalog-panel {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  height: 100%;
  overflow: hidden;
}

.pos-scanner-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  box-shadow: var(--shadow-xs);
}

.pos-search-row {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}

.barcode-scan-input {
  flex: 1;
  position: relative;
}

.barcode-scan-input i {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.05rem;
}

.barcode-scan-input input {
  width: 100%;
  background: #f8fafc;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem 0.45rem 2.4rem;
  color: var(--text-primary);
  font-size: 0.84rem;
  font-weight: 600;
  height: 38px;
  outline: none;
  transition: var(--transition);
}

.barcode-scan-input input:focus {
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.scanner-badge-hint {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--primary);
  background: #f0fdfa;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  border: 1px solid #ccfbf1;
  pointer-events: none;
}

/* Quick Category Pill Tabs */
.pos-category-pills {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.2rem;
}

.category-pill {
  padding: 0.3rem 0.75rem;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.category-pill:hover, .category-pill.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Medicines Grid in POS */
.pos-medicines-scroll {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 0.85rem;
  padding-right: 0.25rem;
}

.pos-med-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.55rem;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
}

.pos-med-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.pos-med-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.pos-med-name {
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.25;
  color: #0f172a;
}

.pos-med-generic {
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.25;
  margin-top: 2px;
}

.pos-med-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.45rem;
  border-top: 1px dashed var(--border-color);
}

.pos-med-price {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--accent-emerald);
}

.pos-med-stock {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

/* POS Right Column: Cart & Checkout */
.pos-cart-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}

.pos-cart-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f8fafc;
}

.pos-customer-bar {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #ffffff;
}

.pos-customer-input {
  flex: 1;
  background: #f8fafc;
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-xs);
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  color: var(--text-primary);
  outline: none;
}

/* Cart Items List */
.pos-cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.cart-item-row {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  padding: 0.65rem 0.85rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  align-items: center;
  gap: 0.65rem;
  transition: var(--transition);
}

.cart-item-row:hover {
  background: #ffffff;
  border-color: #cbd5e1;
}

.cart-item-info h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: #0f172a;
}

.cart-item-batch {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.qty-control {
  display: inline-flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.qty-btn {
  background: transparent;
  border: none;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.8rem;
}

.qty-btn:hover {
  background: #f1f5f9;
  color: var(--primary);
}

.qty-val {
  width: 26px;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.cart-item-total {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  text-align: right;
  color: #0f172a;
}

.empty-cart-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  gap: 0.65rem;
  text-align: center;
  padding: 2rem 1rem;
}

.empty-cart-state i {
  font-size: 2.2rem;
  color: #cbd5e1;
}

/* Cart Checkout Summary */
.pos-cart-summary {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border-color);
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.summary-row.grand-total {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
  border-top: 1px dashed #cbd5e1;
  padding-top: 0.45rem;
  margin-top: 0.2rem;
}

.payment-modes-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin-top: 0.35rem;
}

.payment-mode-btn {
  padding: 0.45rem;
  background: #ffffff;
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 0.74rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  cursor: pointer;
  transition: var(--transition);
}

.payment-mode-btn.active {
  background: #f0fdfa;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-checkout {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: linear-gradient(135deg, var(--accent-emerald), #047857);
  color: white;
  border: none;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.25);
  transition: var(--transition);
  margin-top: 0.35rem;
}

.btn-checkout:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
}

/* GST Tax Invoice Styles */
.invoice-print-container {
  background: #ffffff;
  color: #111827;
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  font-size: 0.8rem;
  line-height: 1.4;
  box-shadow: var(--shadow-sm);
  border: 1px solid #e5e7eb;
}

.invoice-header-box {
  display: flex;
  justify-content: space-between;
  border-bottom: 2px solid #111827;
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
}

.invoice-pharmacy-info h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f766e;
}

.invoice-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: #f9fafb;
  padding: 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.invoice-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.invoice-table th {
  background: #f3f4f6;
  color: #374151;
  font-weight: 700;
  text-align: left;
  padding: 0.5rem 0.4rem;
  border-top: 1px solid #d1d5db;
  border-bottom: 1px solid #d1d5db;
  font-size: 0.74rem;
}

.invoice-table td {
  padding: 0.5rem 0.4rem;
  border-bottom: 1px solid #e5e7eb;
  font-size: 0.78rem;
}

.invoice-total-box {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

.invoice-total-table {
  width: 260px;
}

.invoice-total-table td {
  padding: 0.25rem 0.5rem;
}

.invoice-footer-sign {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px dashed #d1d5db;
  font-size: 0.75rem;
  color: #6b7280;
}