/* Estilos específicos para facturación */
.billing-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 24px;
    height: calc(100vh - 180px);
}

.billing-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.billing-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 0;
    align-self: start;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    background-color: rgba(124, 58, 237, 0.05);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body {
    padding: 20px;
}

/* Información del Cliente */
.customer-info .form-row {
    margin-bottom: 16px;
}

.customer-info .form-row:last-child {
    margin-bottom: 0;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.btn-small:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Búsqueda de Productos */
.search-container {
    margin-bottom: 20px;
}

.search-bar.expanded {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.search-bar.expanded input {
    flex: 1;
}

.search-filters {
    display: flex;
    gap: 12px;
    align-items: center;
}

.search-filters select {
    flex: 1;
}

.products-grid-mini {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    max-height: 300px;
    overflow-y: auto;
    padding: 4px;
}

.product-card-mini {
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-card-mini:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.1);
}

.product-card-mini-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-card-mini-image {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-card-mini-image i {
    color: white;
    font-size: 16px;
}

.product-card-mini-info {
    flex: 1;
    min-width: 0;
}

.product-card-mini-name {
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-card-mini-code {
    font-size: 12px;
    color: var(--text-light);
}

.product-card-mini-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-card-mini-price {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 14px;
}

.product-card-mini-stock {
    font-size: 12px;
    color: var(--text-light);
}

.product-card-mini-stock.low {
    color: var(--warning-color);
    font-weight: 600;
}

.product-card-mini-stock.critical {
    color: var(--danger-color);
    font-weight: 600;
}

/* Productos en la Factura */
.invoice-products {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.invoice-products .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.invoice-items-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.invoice-items-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 80px;
    gap: 12px;
    padding: 12px;
    background-color: var(--bg-color);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.invoice-items-list {
    flex: 1;
    overflow-y: auto;
    min-height: 200px;
}

.invoice-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 80px;
    gap: 12px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: var(--transition);
}

.invoice-item:hover {
    background-color: rgba(124, 58, 237, 0.02);
}

.invoice-item:last-child {
    border-bottom: none;
}

.item-product {
    display: flex;
    align-items: center;
    gap: 10px;
}

.item-product-image {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.item-product-image i {
    color: white;
    font-size: 14px;
}

.item-product-info {
    flex: 1;
    min-width: 0;
}

.item-product-name {
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.item-product-code {
    font-size: 12px;
    color: var(--text-light);
}

.item-quantity {
    display: flex;
    align-items: center;
    gap: 8px;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 4px;
}

.quantity-btn {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: var(--transition);
}

.quantity-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.quantity-input {
    width: 50px;
    text-align: center;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 14px;
}

.item-price {
    font-weight: 600;
    text-align: center;
}

.item-subtotal {
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
}

.item-actions {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.item-action-btn {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.item-action-btn.delete {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.item-action-btn.delete:hover {
    background-color: rgba(239, 68, 68, 0.2);
}

.no-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--text-light);
    text-align: center;
}

.no-items i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-items p {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 500;
}

.no-items small {
    font-size: 14px;
}

/* Resumen de Factura */
.invoice-summary {
    position: sticky;
    top: 0;
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.invoice-date, .invoice-time {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.invoice-date span, .invoice-time span {
    font-size: 12px;
    color: var(--text-light);
}

.invoice-date strong, .invoice-time strong {
    font-size: 14px;
    font-weight: 600;
}

.invoice-totals {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
}

.discount-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon-small {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: var(--transition);
}

.btn-icon-small:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

#discountPercent {
    width: 60px;
    text-align: center;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 14px;
}

#discountAmount {
    margin-left: 12px;
    font-weight: 600;
    color: var(--danger-color);
}

.total-row.grand-total {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    padding-top: 12px;
    border-top: 2px solid var(--border-color);
    margin-top: 4px;
}

/* Métodos de Pago */
.payment-methods {
    margin-bottom: 24px;
}

.payment-methods h4 {
    font-size: 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.payment-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.payment-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.payment-option input {
    display: none;
}

.payment-option:has(input:checked) {
    border-color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.05);
}

.payment-icon {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-light);
}

.payment-option:has(input:checked) .payment-icon {
    color: var(--primary-color);
}

.cash-change {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    color: var(--secondary-color);
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.card-payment .form-row,
.mixed-payment .form-row {
    margin-bottom: 12px;
}

.mixed-total {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
    margin-top: 12px;
}

/* Notas de Factura */
.invoice-notes {
    margin-bottom: 24px;
}

.invoice-notes label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 8px;
}

.invoice-notes textarea {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    resize: vertical;
    min-height: 60px;
    font-family: inherit;
}

/* Acciones de Factura */
.invoice-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.btn-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.btn-warning:hover {
    background-color: var(--warning-color);
    color: white;
}

.btn-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.btn-success:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* Historial de Ventas */
.sales-history {
    flex: 1;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 300px;
    overflow-y: auto;
    padding: 4px;
}

.sale-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    gap: 16px;
}

.sale-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    gap: 16px;
}

.sale-item:hover {
    background-color: rgba(124, 58, 237, 0.05);
}

.sale-item:last-child {
    border-bottom: none;
}

.sale-info {
    flex: 1;
    min-width: 0;
}

.sale-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.sale-number {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-color);
}

.sale-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.sale-status.completed {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
}

.sale-status.pending {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.sale-status.cancelled {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.sale-status i {
    font-size: 10px;
}

.sale-details {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light);
}

.sale-customer,
.sale-datetime,
.sale-items-count {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sale-details i {
    width: 14px;
    text-align: center;
    font-size: 12px;
}

.sale-amount {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    min-width: 80px;
}

.amount-label {
    font-size: 11px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.amount-value {
    font-weight: 700;
    font-size: 16px;
    color: var(--primary-color);
}

.no-sales-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-light);
}

.no-sales-message i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-sales-message p {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-light);
}

.no-sales-message small {
    font-size: 13px;
    max-width: 250px;
}

/* Para el historial en vista responsive */
@media (max-width: 768px) {
    .sale-item {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .sale-amount {
        align-items: flex-start;
        text-align: left;
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }
    
    .amount-label {
        margin-bottom: 0;
    }
}

/* Modales */
.modal-container.large {
    max-width: 900px;
    max-height: 80vh;
}

.modal-container.small {
    max-width: 400px;
}

.products-modal-container {
    max-height: 60vh;
    overflow-y: auto;
}

.products-grid-modal {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding: 8px;
}

.customers-list {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
}

.customer-item {
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.customer-item:hover {
    border-color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.02);
}

.customer-item.selected {
    border-color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.05);
}

.customer-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.customer-id {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.customer-contact {
    font-size: 13px;
    color: var(--text-light);
}

.confirm-content {
    text-align: center;
    padding: 20px;
}

.confirm-content i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.confirm-content p {
    font-size: 16px;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 1200px) {
    .billing-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .billing-right {
        position: static;
    }
    
    .invoice-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .invoice-items-header,
    .invoice-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .payment-options {
        grid-template-columns: 1fr;
    }
    
    .header-actions {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }
    
    .header-actions button {
        width: 100%;
    }
    
    .invoice-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (max-width: 576px) {
    .products-grid-mini {
        grid-template-columns: 1fr;
    }
    
    .search-filters {
        flex-direction: column;
    }
    
    .products-grid-modal {
        grid-template-columns: 1fr;
    }
}

/* Estilos para el modal de borradores */
.drafts-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.drafts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: var(--bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.drafts-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.drafts-info i {
    color: var(--primary-color);
    font-size: 18px;
}

.drafts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.draft-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.draft-item:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.1);
}

.draft-item.selected {
    border-color: var(--primary-color);
    background-color: rgba(124, 58, 237, 0.05);
}

.draft-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.draft-number {
    font-weight: 600;
    font-size: 16px;
    color: var(--primary-color);
}

.draft-date {
    font-size: 12px;
    color: var(--text-light);
    background-color: var(--bg-color);
    padding: 4px 8px;
    border-radius: 4px;
}

.draft-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.draft-detail {
    display: flex;
    flex-direction: column;
}

.draft-label {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.draft-value {
    font-weight: 500;
    font-size: 14px;
}

.draft-items {
    margin-bottom: 16px;
}

.draft-items-title {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.draft-items-title i {
    font-size: 12px;
}

.draft-items-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.draft-item-tag {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.draft-item-tag i {
    font-size: 10px;
    color: var(--primary-color);
}

.draft-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.draft-action-btn {
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.draft-action-btn.load {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.draft-action-btn.load:hover {
    background-color: var(--primary-color);
    color: white;
}

.draft-action-btn.delete {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.draft-action-btn.delete:hover {
    background-color: var(--danger-color);
    color: white;
}

.no-drafts {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
}

.no-drafts i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-drafts h3 {
    font-size: 18px;
    margin-bottom: 8px;
    font-weight: 500;
}

.no-drafts p {
    font-size: 14px;
}