/**
 * Factuya POS - Estilos principales
 * Paleta de colores azul - Diseño responsive
 *
 * @version 1.0.0
 */

/* ========== VARIABLES CSS ========== */
:root {
    /* Paleta de azules */
    --factuya-primary: #1e3a5f;
    --factuya-primary-light: #2c5282;
    --factuya-primary-dark: #1a365d;
    --factuya-secondary: #3182ce;
    --factuya-accent: #63b3ed;
    --factuya-accent-light: #90cdf4;

    /* Colores de estado */
    --factuya-success: #38a169;
    --factuya-success-light: #48bb78;
    --factuya-warning: #d69e2e;
    --factuya-warning-light: #ecc94b;
    --factuya-danger: #e53e3e;
    --factuya-danger-light: #fc8181;
    --factuya-info: #3182ce;

    /* Neutros */
    --factuya-white: #ffffff;
    --factuya-gray-50: #f7fafc;
    --factuya-gray-100: #edf2f7;
    --factuya-gray-200: #e2e8f0;
    --factuya-gray-300: #cbd5e0;
    --factuya-gray-400: #a0aec0;
    --factuya-gray-500: #718096;
    --factuya-gray-600: #4a5568;
    --factuya-gray-700: #2d3748;
    --factuya-gray-800: #1a202c;
    --factuya-gray-900: #171923;

    /* Sombras */
    --factuya-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --factuya-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --factuya-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --factuya-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --factuya-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Bordes */
    --factuya-radius-sm: 4px;
    --factuya-radius: 8px;
    --factuya-radius-lg: 12px;
    --factuya-radius-xl: 16px;
    --factuya-radius-full: 9999px;

    /* Transiciones */
    --factuya-transition: all 0.2s ease;
    --factuya-transition-fast: all 0.1s ease;
    --factuya-transition-slow: all 0.3s ease;

    /* Tipografía */
    --factuya-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --factuya-font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Monaco, monospace;
}

/* ========== RESET Y BASE ========== */
.factuya-pos * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.factuya-pos {
    font-family: var(--factuya-font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--factuya-gray-800);
    background: var(--factuya-gray-100);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Ocultar admin bar de WordPress en POS */
.factuya-pos-fullscreen #wpadminbar,
.factuya-pos-fullscreen .wp-admin {
    display: none !important;
}

/* ========== HEADER ========== */
.factuya-header {
    background: linear-gradient(135deg, var(--factuya-primary) 0%, var(--factuya-primary-light) 100%);
    color: var(--factuya-white);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--factuya-shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.factuya-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.factuya-logo svg,
.factuya-logo img {
    width: 32px;
    height: 32px;
}

.factuya-header-info {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
}

.factuya-header-item {
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0.9;
}

.factuya-header-item strong {
    font-weight: 600;
}

.factuya-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.factuya-header-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--factuya-white);
    width: 40px;
    height: 40px;
    border-radius: var(--factuya-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--factuya-transition);
    font-size: 18px;
}

.factuya-header-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ========== MAIN LAYOUT ========== */
.factuya-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Panel de productos (izquierda) */
.factuya-products-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--factuya-white);
    border-right: 1px solid var(--factuya-gray-200);
    overflow: hidden;
}

/* Panel del carrito (derecha) */
.factuya-cart-panel {
    width: 380px;
    display: flex;
    flex-direction: column;
    background: var(--factuya-gray-50);
    border-left: 1px solid var(--factuya-gray-200);
}

/* ========== BÚSQUEDA Y CATEGORÍAS ========== */
.factuya-search-section {
    padding: 16px;
    background: var(--factuya-white);
    border-bottom: 1px solid var(--factuya-gray-200);
}

.factuya-search-box {
    display: flex;
    align-items: center;
    background: var(--factuya-gray-100);
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius-lg);
    padding: 0 16px;
    transition: var(--factuya-transition);
}

.factuya-search-box:focus-within {
    border-color: var(--factuya-secondary);
    background: var(--factuya-white);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.15);
}

.factuya-search-icon {
    color: var(--factuya-gray-400);
    font-size: 20px;
    margin-right: 12px;
}

.factuya-search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 14px 0;
    font-size: 16px;
    outline: none;
    color: var(--factuya-gray-800);
}

.factuya-search-input::placeholder {
    color: var(--factuya-gray-400);
}

.factuya-scan-btn {
    background: var(--factuya-secondary);
    color: var(--factuya-white);
    border: none;
    padding: 10px 16px;
    border-radius: var(--factuya-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    transition: var(--factuya-transition);
}

.factuya-scan-btn:hover {
    background: var(--factuya-primary-light);
}

/* Categorías */
.factuya-categories {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    overflow-x: auto;
    background: var(--factuya-white);
    border-bottom: 1px solid var(--factuya-gray-200);
    scrollbar-width: none;
}

.factuya-categories::-webkit-scrollbar {
    display: none;
}

.factuya-category-btn {
    flex-shrink: 0;
    background: var(--factuya-gray-100);
    border: 2px solid transparent;
    padding: 10px 20px;
    border-radius: var(--factuya-radius-full);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--factuya-gray-600);
    transition: var(--factuya-transition);
    white-space: nowrap;
}

.factuya-category-btn:hover {
    background: var(--factuya-gray-200);
    color: var(--factuya-gray-800);
}

.factuya-category-btn.active {
    background: var(--factuya-secondary);
    color: var(--factuya-white);
    border-color: var(--factuya-secondary);
}

/* ========== GRID DE PRODUCTOS ========== */
.factuya-products-grid {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    align-content: start;
}

.factuya-product-card {
    background: var(--factuya-white);
    border: 1px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius-lg);
    padding: 12px;
    cursor: pointer;
    transition: var(--factuya-transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.factuya-product-card:hover {
    border-color: var(--factuya-secondary);
    box-shadow: var(--factuya-shadow-md);
    transform: translateY(-2px);
}

.factuya-product-card:active {
    transform: translateY(0);
    box-shadow: var(--factuya-shadow-sm);
}

.factuya-product-image {
    width: 80px;
    height: 80px;
    border-radius: var(--factuya-radius);
    object-fit: cover;
    background: var(--factuya-gray-100);
    margin-bottom: 10px;
}

.factuya-product-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--factuya-gray-700);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.factuya-product-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--factuya-secondary);
}

.factuya-product-stock {
    font-size: 11px;
    color: var(--factuya-gray-500);
    margin-top: 4px;
}

.factuya-product-stock.low {
    color: var(--factuya-warning);
}

.factuya-product-stock.out {
    color: var(--factuya-danger);
}

/* ========== CARRITO ========== */
.factuya-cart-header {
    padding: 16px;
    background: var(--factuya-white);
    border-bottom: 1px solid var(--factuya-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.factuya-cart-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--factuya-gray-800);
    display: flex;
    align-items: center;
    gap: 8px;
}

.factuya-cart-count {
    background: var(--factuya-secondary);
    color: var(--factuya-white);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--factuya-radius-full);
}

.factuya-cart-clear {
    background: none;
    border: none;
    color: var(--factuya-danger);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--factuya-radius);
    transition: var(--factuya-transition);
}

.factuya-cart-clear:hover {
    background: var(--factuya-danger-light);
    color: var(--factuya-white);
}

/* Cliente seleccionado */
.factuya-customer-section {
    padding: 12px 16px;
    background: var(--factuya-accent-light);
    border-bottom: 1px solid var(--factuya-gray-200);
}

.factuya-customer-select {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 12px;
    background: var(--factuya-white);
    border-radius: var(--factuya-radius);
    transition: var(--factuya-transition);
}

.factuya-customer-select:hover {
    background: var(--factuya-gray-50);
}

.factuya-customer-avatar {
    width: 36px;
    height: 36px;
    background: var(--factuya-secondary);
    color: var(--factuya-white);
    border-radius: var(--factuya-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.factuya-customer-info {
    flex: 1;
}

.factuya-customer-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--factuya-gray-800);
}

.factuya-customer-id {
    font-size: 12px;
    color: var(--factuya-gray-500);
}

/* Items del carrito */
.factuya-cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.factuya-cart-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--factuya-gray-400);
    text-align: center;
    padding: 40px;
}

.factuya-cart-empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.factuya-cart-empty-text {
    font-size: 16px;
    font-weight: 500;
}

.factuya-cart-item {
    background: var(--factuya-white);
    border: 1px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--factuya-transition);
}

.factuya-cart-item:hover {
    border-color: var(--factuya-gray-300);
}

.factuya-cart-item-image {
    width: 50px;
    height: 50px;
    border-radius: var(--factuya-radius-sm);
    object-fit: cover;
    background: var(--factuya-gray-100);
}

.factuya-cart-item-details {
    flex: 1;
    min-width: 0;
}

.factuya-cart-item-name {
    font-weight: 500;
    font-size: 14px;
    color: var(--factuya-gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.factuya-cart-item-price {
    font-size: 13px;
    color: var(--factuya-gray-500);
}

.factuya-cart-item-qty {
    display: flex;
    align-items: center;
    gap: 8px;
}

.factuya-qty-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--factuya-gray-300);
    background: var(--factuya-white);
    border-radius: var(--factuya-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--factuya-gray-600);
    transition: var(--factuya-transition);
}

.factuya-qty-btn:hover {
    background: var(--factuya-gray-100);
    border-color: var(--factuya-secondary);
    color: var(--factuya-secondary);
}

.factuya-qty-value {
    font-weight: 600;
    font-size: 14px;
    min-width: 24px;
    text-align: center;
}

.factuya-cart-item-total {
    font-weight: 700;
    font-size: 15px;
    color: var(--factuya-secondary);
    text-align: right;
    min-width: 80px;
}

.factuya-cart-item-remove {
    background: none;
    border: none;
    color: var(--factuya-gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--factuya-radius-sm);
    transition: var(--factuya-transition);
}

.factuya-cart-item-remove:hover {
    color: var(--factuya-danger);
    background: var(--factuya-danger-light);
}

/* ========== TOTALES Y CHECKOUT ========== */
.factuya-cart-footer {
    background: var(--factuya-white);
    border-top: 1px solid var(--factuya-gray-200);
    padding: 16px;
}

.factuya-cart-totals {
    margin-bottom: 16px;
}

.factuya-cart-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 14px;
    color: var(--factuya-gray-600);
}

.factuya-cart-total-row.discount {
    color: var(--factuya-success);
}

.factuya-cart-total-row.grand-total {
    font-size: 20px;
    font-weight: 700;
    color: var(--factuya-gray-800);
    border-top: 2px solid var(--factuya-gray-200);
    padding-top: 12px;
    margin-top: 8px;
}

.factuya-cart-total-row.grand-total .factuya-total-amount {
    color: var(--factuya-secondary);
    font-size: 24px;
}

/* Botones de pago */
.factuya-payment-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 12px;
}

.factuya-payment-btn {
    padding: 14px;
    border: 2px solid var(--factuya-gray-200);
    background: var(--factuya-white);
    border-radius: var(--factuya-radius);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: var(--factuya-transition);
    font-size: 12px;
    font-weight: 500;
    color: var(--factuya-gray-600);
}

.factuya-payment-btn:hover {
    border-color: var(--factuya-secondary);
    color: var(--factuya-secondary);
}

.factuya-payment-btn.active {
    border-color: var(--factuya-secondary);
    background: var(--factuya-secondary);
    color: var(--factuya-white);
}

.factuya-payment-btn-icon {
    font-size: 24px;
}

/* Botón principal de facturar */
.factuya-checkout-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--factuya-secondary) 0%, var(--factuya-primary-light) 100%);
    color: var(--factuya-white);
    border: none;
    border-radius: var(--factuya-radius-lg);
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--factuya-transition);
    box-shadow: var(--factuya-shadow-md);
}

.factuya-checkout-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--factuya-shadow-lg);
}

.factuya-checkout-btn:active {
    transform: translateY(0);
}

.factuya-checkout-btn:disabled {
    background: var(--factuya-gray-300);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.factuya-checkout-btn .factuya-shortcut {
    font-size: 12px;
    opacity: 0.8;
    background: rgba(255,255,255,0.2);
    padding: 2px 8px;
    border-radius: var(--factuya-radius-sm);
}

/* ========== MODALES ========== */
.factuya-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--factuya-transition);
}

.factuya-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.factuya-modal {
    background: var(--factuya-white);
    border-radius: var(--factuya-radius-xl);
    box-shadow: var(--factuya-shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: var(--factuya-transition);
}

.factuya-modal-overlay.active .factuya-modal {
    transform: scale(1) translateY(0);
}

.factuya-modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--factuya-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.factuya-modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--factuya-gray-800);
}

.factuya-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--factuya-gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--factuya-radius-sm);
    transition: var(--factuya-transition);
}

.factuya-modal-close:hover {
    color: var(--factuya-gray-600);
    background: var(--factuya-gray-100);
}

.factuya-modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: 60vh;
}

.factuya-modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--factuya-gray-200);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Modal de pago */
.factuya-payment-modal .factuya-modal {
    max-width: 450px;
}

.factuya-payment-summary {
    background: var(--factuya-gray-50);
    border-radius: var(--factuya-radius);
    padding: 16px;
    margin-bottom: 20px;
}

.factuya-payment-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--factuya-secondary);
    text-align: center;
    margin-bottom: 8px;
}

.factuya-payment-label {
    font-size: 14px;
    color: var(--factuya-gray-500);
    text-align: center;
}

.factuya-payment-input-group {
    margin-bottom: 16px;
}

.factuya-payment-input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--factuya-gray-600);
    margin-bottom: 6px;
}

.factuya-payment-input {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    font-size: 18px;
    font-weight: 600;
    text-align: right;
    transition: var(--factuya-transition);
}

.factuya-payment-input:focus {
    outline: none;
    border-color: var(--factuya-secondary);
}

.factuya-quick-amounts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.factuya-quick-amount {
    padding: 12px;
    border: 1px solid var(--factuya-gray-200);
    background: var(--factuya-white);
    border-radius: var(--factuya-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--factuya-transition);
}

.factuya-quick-amount:hover {
    border-color: var(--factuya-secondary);
    color: var(--factuya-secondary);
}

.factuya-change-display {
    background: var(--factuya-success-light);
    color: var(--factuya-white);
    padding: 16px;
    border-radius: var(--factuya-radius);
    text-align: center;
    margin-top: 16px;
}

.factuya-change-label {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 4px;
}

.factuya-change-amount {
    font-size: 28px;
    font-weight: 700;
}

/* ========== TECLADO NUMÉRICO (MÓVIL) ========== */
.factuya-numpad {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px;
    background: var(--factuya-gray-100);
    border-top: 1px solid var(--factuya-gray-200);
}

.factuya-numpad-btn {
    padding: 20px;
    font-size: 24px;
    font-weight: 600;
    background: var(--factuya-white);
    border: 1px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    cursor: pointer;
    transition: var(--factuya-transition);
}

.factuya-numpad-btn:hover {
    background: var(--factuya-gray-100);
}

.factuya-numpad-btn:active {
    background: var(--factuya-gray-200);
}

.factuya-numpad-btn.action {
    background: var(--factuya-secondary);
    color: var(--factuya-white);
    border-color: var(--factuya-secondary);
}

.factuya-numpad-btn.delete {
    background: var(--factuya-danger);
    color: var(--factuya-white);
    border-color: var(--factuya-danger);
}

/* ========== TOAST / NOTIFICACIONES ========== */
.factuya-toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.factuya-toast {
    background: var(--factuya-gray-800);
    color: var(--factuya-white);
    padding: 14px 20px;
    border-radius: var(--factuya-radius);
    box-shadow: var(--factuya-shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.factuya-toast.success {
    background: var(--factuya-success);
}

.factuya-toast.error {
    background: var(--factuya-danger);
}

.factuya-toast.warning {
    background: var(--factuya-warning);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========== LOADING / SPINNER ========== */
.factuya-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.factuya-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--factuya-gray-200);
    border-top-color: var(--factuya-secondary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========== RESPONSIVE - TABLET ========== */
@media (max-width: 1024px) {
    .factuya-cart-panel {
        width: 320px;
    }

    .factuya-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .factuya-product-image {
        width: 70px;
        height: 70px;
    }

    .factuya-header-info {
        display: none;
    }
}

/* ========== RESPONSIVE - MÓVIL ========== */
@media (max-width: 768px) {
    .factuya-main {
        flex-direction: column;
    }

    .factuya-products-panel {
        flex: none;
        height: 50vh;
        border-right: none;
        border-bottom: 1px solid var(--factuya-gray-200);
    }

    .factuya-cart-panel {
        width: 100%;
        flex: 1;
        border-left: none;
    }

    .factuya-products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        padding: 10px;
    }

    .factuya-product-card {
        padding: 8px;
    }

    .factuya-product-image {
        width: 60px;
        height: 60px;
    }

    .factuya-product-name {
        font-size: 11px;
    }

    .factuya-product-price {
        font-size: 14px;
    }

    .factuya-cart-item {
        padding: 10px;
    }

    .factuya-cart-item-image {
        width: 40px;
        height: 40px;
    }

    .factuya-checkout-btn {
        padding: 16px;
        font-size: 16px;
    }

    .factuya-numpad {
        display: grid;
    }

    .factuya-header {
        padding: 10px 12px;
    }

    .factuya-logo {
        font-size: 18px;
    }

    .factuya-search-input {
        font-size: 14px;
        padding: 12px 0;
    }

    .factuya-category-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .factuya-payment-buttons {
        grid-template-columns: repeat(2, 1fr);
    }

    .factuya-modal {
        width: 95%;
        max-height: 95vh;
    }
}

/* ========== RESPONSIVE - MÓVIL PEQUEÑO ========== */
@media (max-width: 480px) {
    .factuya-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .factuya-products-panel {
        height: 45vh;
    }

    .factuya-cart-header {
        padding: 12px;
    }

    .factuya-cart-title {
        font-size: 16px;
    }

    .factuya-cart-footer {
        padding: 12px;
    }

    .factuya-cart-total-row.grand-total {
        font-size: 18px;
    }

    .factuya-cart-total-row.grand-total .factuya-total-amount {
        font-size: 22px;
    }

    .factuya-quick-amounts {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== MODO OSCURO (Opcional) ========== */
@media (prefers-color-scheme: dark) {
    .factuya-pos.dark-mode {
        --factuya-white: #1a202c;
        --factuya-gray-50: #171923;
        --factuya-gray-100: #1a202c;
        --factuya-gray-200: #2d3748;
        --factuya-gray-300: #4a5568;
        --factuya-gray-400: #718096;
        --factuya-gray-500: #a0aec0;
        --factuya-gray-600: #cbd5e0;
        --factuya-gray-700: #e2e8f0;
        --factuya-gray-800: #edf2f7;
        --factuya-gray-900: #f7fafc;
    }
}

/* ========== TABS ====================*/
.factuya-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--factuya-gray-200);
    margin-bottom: 20px;
}

.factuya-tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    font-size: 14px;
    font-weight: 500;
    color: var(--factuya-gray-500);
    cursor: pointer;
    transition: var(--factuya-transition);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.factuya-tab:hover {
    color: var(--factuya-secondary);
    background: var(--factuya-gray-50);
}

.factuya-tab.active {
    color: var(--factuya-secondary);
    border-bottom-color: var(--factuya-secondary);
}

.factuya-tab-content {
    display: none;
}

.factuya-tab-content.active {
    display: block;
}

/* ========== FORMULARIOS ========== */
.factuya-form-group {
    margin-bottom: 16px;
}

.factuya-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--factuya-gray-600);
    margin-bottom: 6px;
}

.factuya-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.factuya-input,
.factuya-form-group input,
.factuya-form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    font-size: 14px;
    color: var(--factuya-gray-800);
    transition: var(--factuya-transition);
    background: var(--factuya-white);
}

.factuya-input:focus,
.factuya-form-group input:focus,
.factuya-form-group select:focus {
    outline: none;
    border-color: var(--factuya-secondary);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.factuya-input-lg {
    padding: 14px 16px;
    font-size: 18px;
    font-weight: 600;
    text-align: right;
}

/* Radio buttons */
.factuya-radio-group {
    display: flex;
    gap: 16px;
}

.factuya-radio {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--factuya-gray-700);
}

.factuya-radio input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--factuya-secondary);
}

/* ========== BOTONES ========== */
.factuya-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--factuya-transition);
    background: var(--factuya-white);
    color: var(--factuya-gray-700);
}

.factuya-btn:hover {
    border-color: var(--factuya-gray-300);
    background: var(--factuya-gray-50);
}

.factuya-btn-primary {
    background: var(--factuya-secondary);
    border-color: var(--factuya-secondary);
    color: var(--factuya-white);
}

.factuya-btn-primary:hover {
    background: var(--factuya-primary-light);
    border-color: var(--factuya-primary-light);
}

.factuya-btn-secondary {
    background: var(--factuya-gray-100);
    border-color: var(--factuya-gray-200);
    color: var(--factuya-gray-700);
}

.factuya-btn-success {
    background: var(--factuya-success);
    border-color: var(--factuya-success);
    color: var(--factuya-white);
}

.factuya-btn-danger {
    background: var(--factuya-danger);
    border-color: var(--factuya-danger);
    color: var(--factuya-white);
}

.factuya-btn-lg {
    padding: 14px 24px;
    font-size: 16px;
}

.factuya-btn-block {
    width: 100%;
}

.factuya-btn-link {
    background: none;
    border: none;
    color: var(--factuya-secondary);
    font-size: 13px;
    cursor: pointer;
    padding: 4px;
    text-decoration: underline;
}

.factuya-btn-link:hover {
    color: var(--factuya-primary-light);
}

.factuya-btn-icon {
    background: none;
    border: none;
    color: var(--factuya-gray-400);
    cursor: pointer;
    padding: 4px;
    font-size: 18px;
    line-height: 1;
}

.factuya-btn-icon:hover {
    color: var(--factuya-danger);
}

/* ========== MODAL GRANDE ========== */
.factuya-modal-lg .factuya-modal {
    max-width: 700px;
}

/* ========== LISTA DE CLIENTES ========== */
.factuya-customer-list {
    max-height: 300px;
    overflow-y: auto;
}

.factuya-customer-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--factuya-transition);
}

.factuya-customer-item:hover {
    border-color: var(--factuya-secondary);
    background: var(--factuya-gray-50);
}

.factuya-text-muted {
    color: var(--factuya-gray-400);
    text-align: center;
    padding: 20px;
}

/* ========== CONSUMIDOR FINAL ========== */
.factuya-generic-customer {
    text-align: center;
    padding: 30px;
}

.factuya-generic-customer svg {
    color: var(--factuya-gray-300);
    margin-bottom: 16px;
}

.factuya-generic-customer h3 {
    font-size: 18px;
    color: var(--factuya-gray-800);
    margin-bottom: 8px;
}

.factuya-generic-customer p {
    color: var(--factuya-gray-500);
    margin-bottom: 16px;
}

.factuya-generic-info {
    background: var(--factuya-gray-50);
    border-radius: var(--factuya-radius);
    padding: 16px;
    text-align: left;
    font-size: 14px;
}

.factuya-generic-info div {
    margin-bottom: 8px;
}

.factuya-generic-info div:last-child {
    margin-bottom: 0;
}

/* ========== MODAL DE PAGO ========== */
.factuya-payment-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 24px;
}

.factuya-payment-summary-col {
    border-right: 1px solid var(--factuya-gray-200);
    padding-right: 24px;
}

.factuya-payment-customer-info {
    margin-bottom: 20px;
}

.factuya-payment-customer-info h4 {
    font-size: 12px;
    color: var(--factuya-gray-500);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.factuya-payment-customer-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--factuya-gray-800);
}

.factuya-payment-customer-doc {
    font-size: 13px;
    color: var(--factuya-gray-500);
    margin-bottom: 8px;
}

.factuya-payment-totals {
    background: var(--factuya-gray-50);
    border-radius: var(--factuya-radius);
    padding: 16px;
}

.factuya-payment-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--factuya-gray-600);
}

.factuya-payment-row.factuya-payment-total {
    border-top: 2px solid var(--factuya-gray-200);
    margin-top: 8px;
    padding-top: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--factuya-gray-800);
}

.factuya-payment-row.factuya-payment-total span:last-child {
    color: var(--factuya-secondary);
    font-size: 24px;
}

/* Métodos de pago */
.factuya-payment-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.factuya-payment-method {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 12px;
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    background: var(--factuya-white);
    cursor: pointer;
    transition: var(--factuya-transition);
    font-size: 13px;
    color: var(--factuya-gray-600);
}

.factuya-payment-method:hover {
    border-color: var(--factuya-secondary);
    color: var(--factuya-secondary);
}

.factuya-payment-method.active {
    border-color: var(--factuya-secondary);
    background: var(--factuya-secondary);
    color: var(--factuya-white);
}

.factuya-payment-method svg {
    width: 28px;
    height: 28px;
}

/* Tipo de pago radio */
.factuya-payment-type-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.factuya-payment-type-group .factuya-radio {
    padding: 12px;
    border: 2px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    justify-content: center;
}

.factuya-payment-type-group .factuya-radio:has(input:checked) {
    border-color: var(--factuya-secondary);
    background: rgba(49, 130, 206, 0.05);
}

/* ========== PAGOS FRACCIONADOS ========== */
.factuya-split-item {
    border: 1px solid var(--factuya-gray-200);
    border-radius: var(--factuya-radius);
    margin-bottom: 12px;
}

.factuya-split-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--factuya-gray-50);
    border-bottom: 1px solid var(--factuya-gray-200);
    font-weight: 500;
    font-size: 13px;
}

.factuya-split-body {
    padding: 12px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.factuya-split-body .factuya-form-group {
    margin-bottom: 0;
}

.factuya-split-summary {
    background: var(--factuya-gray-50);
    border-radius: var(--factuya-radius);
    padding: 12px;
    margin-top: 16px;
}

.factuya-split-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
}

.factuya-split-pending {
    font-weight: 600;
}

.factuya-split-pending.has-pending {
    color: var(--factuya-danger);
}

/* ========== RECIBO / FACTURA ========== */
.factuya-receipt-body {
    text-align: center;
}

.factuya-receipt-success {
    margin-bottom: 24px;
}

.factuya-receipt-success svg {
    color: var(--factuya-success);
    margin-bottom: 16px;
}

.factuya-receipt-success h2 {
    font-size: 24px;
    color: var(--factuya-gray-800);
}

.factuya-receipt-info {
    background: var(--factuya-gray-50);
    border-radius: var(--factuya-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.factuya-receipt-number,
.factuya-receipt-cufe,
.factuya-receipt-total,
.factuya-receipt-change {
    margin-bottom: 12px;
}

.factuya-receipt-number span,
.factuya-receipt-cufe span,
.factuya-receipt-total span,
.factuya-receipt-change span {
    display: block;
    font-size: 12px;
    color: var(--factuya-gray-500);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.factuya-receipt-number strong {
    font-size: 24px;
    color: var(--factuya-secondary);
}

.factuya-receipt-cufe code {
    font-size: 11px;
    color: var(--factuya-gray-600);
    word-break: break-all;
}

.factuya-receipt-total strong {
    font-size: 28px;
    color: var(--factuya-gray-800);
}

.factuya-receipt-change strong {
    font-size: 20px;
    color: var(--factuya-success);
}

.factuya-receipt-qr {
    margin-bottom: 20px;
}

.factuya-receipt-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

/* ========== TURNO DE CAJA ========== */
.factuya-shift-active-info,
.factuya-shift-closed-info {
    text-align: center;
    padding: 20px;
    margin-bottom: 20px;
}

.factuya-shift-active-info svg,
.factuya-shift-closed-info svg {
    color: var(--factuya-gray-300);
    margin-bottom: 12px;
}

.factuya-shift-active-info h4,
.factuya-shift-closed-info h4 {
    font-size: 18px;
    color: var(--factuya-gray-800);
    margin-bottom: 8px;
}

.factuya-shift-active-info p,
.factuya-shift-closed-info p {
    font-size: 14px;
    color: var(--factuya-gray-500);
}

/* Header shift indicator */
.factuya-shift-active {
    color: var(--factuya-success-light);
}

.factuya-shift-closed {
    color: var(--factuya-warning-light);
}

/* ========== IMPRESIÓN ========== */
@media print {
    .factuya-header,
    .factuya-products-panel,
    .factuya-payment-buttons,
    .factuya-checkout-btn {
        display: none !important;
    }

    .factuya-pos {
        background: white;
    }

    .factuya-cart-panel {
        width: 100%;
        border: none;
    }
}

/* ========== RESPONSIVE PARA MODALES ========== */
@media (max-width: 768px) {
    .factuya-payment-grid {
        grid-template-columns: 1fr;
    }

    .factuya-payment-summary-col {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--factuya-gray-200);
        padding-bottom: 16px;
        margin-bottom: 16px;
    }

    .factuya-form-row {
        grid-template-columns: 1fr;
    }

    .factuya-split-body {
        grid-template-columns: 1fr;
    }

    .factuya-modal-lg .factuya-modal {
        max-width: 95%;
    }

    .factuya-receipt-actions {
        flex-direction: column;
    }

    .factuya-receipt-actions .factuya-btn {
        width: 100%;
    }
}