/* ------------- Aviso copyright ------------- */
.copyright-notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #f8f9fa;
    border-left: 5px solid #dc3545;
    padding: 15px;
    max-width: 300px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-radius: 5px;
    font-size: 14px;
    z-index: 1000;
    animation: slideIn 0.5s ease-out;
    display: none;
}
.copyright-notice.show { display: block; }
.copyright-notice .close-btn { position: absolute; top: 5px; right: 5px; background: none; border: none; font-size: 16px; cursor: pointer; color: #6c757d; }
.copyright-notice strong { color: #dc3545; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.copyright-icon { position: fixed; bottom: 20px; right: 20px; background-color: #dc3545; color: white; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: 0 2px 5px rgba(0,0,0,0.2); z-index: 999; font-weight: bold; font-size: 18px; }

/* Inventario bajo */
.inventario-bajo { color: red; font-weight: bold; }

/* Lista costos container (estilos mejorados) */
#listaCostosContainer { margin-top: 20px; padding: 15px; background-color: #f8f9fa; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
#listaCostos { list-style-type: none; padding: 0; }
#listaCostos li { padding: 10px; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; }
.costos-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }

/* Floating nav */
.floating-nav { position: fixed; right: 20px; bottom: 80px; display: flex; flex-direction: column; gap: 10px; z-index: 998; }
.floating-nav button { width: 50px; height: 50px; border-radius: 50%; background: linear-gradient(to bottom, #26c6da, #00acc1); color: white; border: none; cursor: pointer; box-shadow: 0 4px 8px rgba(0,0,0,0.2); display: flex; align-items: center; justify-content: center; font-size: 24px; transition: all 0.3s ease; }
.floating-nav button:hover { transform: scale(1.1); box-shadow: 0 6px 12px rgba(0,0,0,0.3); }
.floating-nav button:active { transform: scale(0.95); }
.go-top { background: linear-gradient(to bottom, #4CAF50, #66BB6A) !important; }
.go-bottom { background: linear-gradient(to bottom, #607d8b, #78909c) !important; }

/* Carrito */
.carrito-ventas { margin-top: 30px; padding: 20px; background-color: #fff; border-radius: 15px; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); width: 100%; max-width: 840px; }
.carrito-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.carrito-totales { display: flex; flex-direction: column; gap: 5px; }
.carrito-total { font-size: 1.2rem; font-weight: bold; color: #00796b; background-color: #e0f7fa; padding: 10px 15px; border-radius: 8px; }
#totalCarritoDolares { background-color: #e8f5e9; color: #388e3c; }
.carrito-table { width: 100%; border-collapse: collapse; margin-top: 15px; }
.carrito-table th, .carrito-table td { padding: 12px; border: 1px solid #e0e0e0; text-align: left; }
.carrito-table th { background: linear-gradient(to right, #26c6da, #00acc1); color: white; font-weight: 600; }
.carrito-table tr:nth-child(even) { background-color: #f5f5f5; }
.carrito-table tr:hover { background-color: #e0f7fa; }
.btn-eliminar-carrito { background: linear-gradient(to right, #f44336, #ef5350); color: white; border: none; padding: 6px 12px; border-radius: 4px; cursor: pointer; }
.btn-eliminar-carrito:hover { background: linear-gradient(to right, #d32f2f, #e53935); }

/* scanner input */
.scanner-input { display: flex; gap: 10px; margin-bottom: 15px; align-items: center; position: relative; }
.scanner-input input { flex: 1; padding: 10px; border-radius: 8px; border: 1px solid #b2dfdb; }
.scanner-input button { padding: 10px 15px; background: linear-gradient(to right, #4CAF50, #66BB6A); color: white; border: none; border-radius: 8px; cursor: pointer; width: auto; }
.scanner-status { font-size: 0.9rem; color: #666; margin-top: 5px; }

/* finalizar Venta button */
#finalizarVenta { font-size: 14px; padding: 6px 12px; border-radius: 6px; background-color: #28a745; color: white; border: none; cursor: pointer; transition: transform 0.2s ease; width: auto; display: inline-block; }
#finalizarVenta:hover { transform: scale(1.05); }

/* cb button */
.cb-button { background: linear-gradient(to right, #9c27b0, #ab47bc); color: white; border: none; padding: 6px 10px; border-radius: 4px; cursor: pointer; margin-left: 5px; font-size: 0.8rem; font-weight: bold; }
.cb-button:hover { background: linear-gradient(to right, #7b1fa2, #8e24aa); }

/* unidad selector */
.unidad-selector { padding: 5px; border-radius: 4px; border: 1px solid #b2dfdb; font-size: 0.9rem; }

/* Modal mejorado para responsive */
.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(90%, 700px);
    max-height: 90vh;
    overflow-y: auto;
    /* resto de estilos igual */
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: clamp(15px, 3vw, 25px);
    border-radius: 10px;
    width: 90%;
    max-width: min(700px, 90vw);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    position: relative;
    box-sizing: border-box;
}

.close {
    color: #aaa;
    float: right;
    font-size: clamp(24px, 5vw, 32px);
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: black;
}

/* Media queries para diferentes dispositivos */
@media screen and (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        width: 95%;
        max-width: 95vw;
        padding: 15px;
    }
}

@media screen and (max-width: 480px) {
    .modal-content {
        margin: 15% auto;
        width: 98%;
        max-width: 98vw;
        padding: 12px;
    }
    
    .close {
        font-size: 24px;
    }
}

/* resumen venta */
.resumen-venta { background-color: #e8f5e9; padding: 15px; border-radius: 8px; margin-bottom: 15px; }
.resumen-venta h4 { margin-top: 0; color: #2e7d32; }

/* métodos pago grid */
.metodos-pago { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 15px; }
.metodos-pago button { padding: 10px; border: none; border-radius: 5px; background-color: #26c6da; color: white; cursor: pointer; transition: background-color 0.3s; }
.metodos-pago button:hover { background-color: #00acc1; }

/* campos pago */
.campo-pago { margin-bottom: 10px; }
.campo-pago label { display: block; margin-bottom: 5px; font-weight: bold; }
.campo-pago input { width: 100%; padding: 8px; border-radius: 5px; border: 1px solid #ddd; }

/* modal buttons */
.modal-buttons { display: flex; justify-content: space-between; margin-top: 15px; }
.modal-buttons button { padding: 10px 15px; border: none; border-radius: 5px; cursor: pointer; }
.btn-cancelar { background-color: #f44336; color: white; }
.btn-cancelar:hover { background-color: #d32f2f; }

/* responsive adjustments */
@media (max-width: 768px) {
    .carrito-header { flex-direction: column; align-items: flex-start; }
    .scanner-input { flex-direction: column; align-items: stretch; }
    .metodos-pago { grid-template-columns: 1fr; }
    .modal-content { width: 95%; margin: 3% auto; }
}

/* generales (mantener look) */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
    margin: 0;
    padding: 20px;
    min-height: 100vh;
}
.calculator { border: 2px solid #ccc; padding: 25px; border-radius: 15px; background-color: #fff; width: 100%; max-width: 420px; margin-bottom: 25px; text-align: center; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.calculator:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15); }
h2, h3 { margin-bottom: 15px; color: #00796b; text-shadow: 1px 1px 2px rgba(0,0,0,0.1); }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
input[type="number"], input[type="text"], select { margin: 12px 0; padding: 12px; width: 90%; box-sizing: border-box; border-radius: 8px; border: 1px solid #b2dfdb; transition: all 0.3s ease; font-size: 1rem; }
input[type="number"]:focus, input[type="text"]:focus, select:focus { outline: none; border-color: #26c6da; box-shadow: 0 0 0 3px rgba(38, 198, 218, 0.2); }
button { margin: 12px 0; padding: 12px; width: 90%; box-sizing: border-box; border-radius: 8px; border: none; cursor: pointer; transition: all 0.3s ease; font-size: 1rem; font-weight: 600; letter-spacing: 0.5px; box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); }
button:hover { transform: translateY(-2px); box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); }
button:active { transform: translateY(0); }
.main-button { background: linear-gradient(to right, #29b6f6, #26c6da); color: white; }
.main-button:hover { background: linear-gradient(to right, #0288d1, #00acc1); }
p { margin: 12px 0; color: #333; line-height: 1.5; }

/* lista productos */
#listaProductos { width: 100%; max-width: 840px; background-color: white; padding: 25px; border-radius: 15px; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); }
#listaProductos table { width: 100%; border-collapse: collapse; margin-top: 25px; overflow: hidden; border-radius: 10px; }
#listaProductos th, #listaProductos td { padding: 12px; border: 1px solid #e0e0e0; text-align: left; }
#listaProductos th { background: linear-gradient(to right, #26c6da, #00acc1); color: white; font-weight: 600; }
#listaProductos tr:nth-child(even) { background-color: #f5f5f5; }
#listaProductos tr:hover { background-color: #e0f7fa; }

/* botones especiales */
#listaProductos button { padding: 8px 12px; width: auto; margin: 0 5px; font-size: 0.9rem; }
#listaProductos button.editar { background: linear-gradient(to right, #4CAF50, #66BB6A); }
#listaProductos button.editar:hover { background: linear-gradient(to right, #43A047, #5CB85C); }
#listaProductos button.eliminar { background: linear-gradient(to right, #f44336, #ef5350); }
#listaProductos button.eliminar:hover { background: linear-gradient(to right, #d32f2f, #e53935); }
#listaProductos button.imprimir { background: linear-gradient(to right, #FF9800, #FFA726); }
#listaProductos button.imprimir:hover { background: linear-gradient(to right, #F57C00, #FB8C00); }
#listaProductos button.generar-pdf { background: linear-gradient(to right, #008CBA, #00bcd4); margin-top: 15px; }
#listaProductos button.generar-pdf:hover { background: linear-gradient(to right, #007bb5, #00acc1); }
#listaProductos button.lista-costos { background: linear-gradient(to right, #9c27b0, #ab47bc); margin-top: 15px; }
#listaProductos button.lista-costos:hover { background: linear-gradient(to right, #7b1fa2, #8e24aa); }

/* NUEVOS BOTONES PARA INNOVACIONES */
#listaProductos button.generar-pdf-categoria { 
    background: linear-gradient(to right, #9c27b0, #ab47bc); 
    margin-top: 15px; 
}
#listaProductos button.generar-pdf-categoria:hover { 
    background: linear-gradient(to right, #7b1fa2, #8e24aa); 
}

#listaProductos button.generar-etiquetas { 
    background: linear-gradient(to right, #ff9800, #ffa726); 
    margin-top: 15px; 
}
#listaProductos button.generar-etiquetas:hover { 
    background: linear-gradient(to right, #f57c00, #fb8c00); 
}

/* lista costos */
#listaCostosContainer { width: 100%; background-color: #f9f9f9; padding: 25px; border-radius: 15px; margin-top: 25px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
#listaCostos { list-style-type: none; padding: 0; }
#listaCostos li { padding: 12px; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; transition: background-color 0.3s; }
#listaCostos li:hover { background-color: #e0f7fa; }
#listaCostos li span:first-child { flex: 2; font-weight: 500; }
#listaCostos li span:last-child { flex: 1; text-align: right; font-family: 'Courier New', monospace; font-weight: bold; color: #00796b; }
.generar-pdf-costos { background: linear-gradient(to right, #2ecc71, #4CAF50); color: white; border: none; padding: 12px 20px; border-radius: 8px; cursor: pointer; margin-bottom: 20px; font-weight: bold; transition: all 0.3s ease; box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); width: auto; }
.generar-pdf-costos:hover { background: linear-gradient(to right, #27ae60, #43A047); transform: translateY(-2px); box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); }

/* toast notifications */
#toastContainer { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 1100; pointer-events: none; }
.toast { display: inline-flex; align-items: center; gap: 12px; padding: 12px 18px; border-radius: 8px; margin-top: 8px; color: #fff; font-weight: 700; box-shadow: 0 5px 15px rgba(0,0,0,0.2); pointer-events: auto; animation: toastIn 0.25s ease; }
@keyframes toastIn { from { transform: translateY(10px); opacity: 0 } to { transform: translateY(0); opacity: 1 } }
.toast.success { background: linear-gradient(to right, #4CAF50, #66BB6A); }
.toast.error { background: linear-gradient(to right, #f44336, #ef5350); }
.toast.warning { background: linear-gradient(to right, #FF9800, #FFA726); }

/* pequeños ajustes accesorios */
.inventario-bajo { color: #f44336; font-weight: bold; background-color: #ffebee; padding: 2px 5px; border-radius: 4px; }
.ajuste-inventario { display: flex; align-items: center; gap: 5px; }
.ajuste-inventario button { padding: 5px 10px; min-width: 30px; margin: 0; font-size: 0.8rem; }
.ajuste-inventario input { width: 50px; padding: 5px; text-align: center; margin: 0; }

/* responsivo */
@media (max-width: 768px) {
    body { padding: 15px; }
    .calculator { max-width: 100%; padding: 20px; }
    input[type="number"], input[type="text"], select, button { width: 100%; }
    #listaProductos { padding: 15px; }
    #listaProductos table { font-size: 14px; }
    #listaProductos th, #listaProductos td { padding: 8px; }
    #listaProductos button { padding: 6px 10px; font-size: 12px; margin: 2px; }
    #listaCostosContainer { padding: 15px; }
    .ajuste-inventario { flex-direction: column; gap: 3px; }
    .ajuste-inventario input { width: 40px; }
}

/* efecto pulse */
@keyframes pulse { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }
.pulse-effect { animation: pulse 1.5s infinite; }

/* scroll personalizado */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 10px; }
::-webkit-scrollbar-thumb { background: #b2dfdb; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #80cbc4; }

/* sugerencias en carrito */
.sugerencias-lista { position: absolute; left: 0; top: calc(100% + 6px); width: 100%; max-height: 160px; overflow-y: auto; background: #ffffff; border-top: 1px solid #cfcfcf; box-shadow: 0 2px 6px rgba(0,0,0,0.06); z-index: 1200; font-size: 13px; border-radius: 6px; padding: 4px 0; }
.sugerencias-lista div { padding: 6px 10px; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sugerencias-lista div:hover { background-color: #f5f5f5; }
#scannerStatus { font-size: 12px; color: gray; margin-top: 6px; }

/* ===== Estilos para impresión de ticket térmico (80mm approx) ===== */
/* Estos estilos solo se aplican en la ventana de impresión generada por JS */
.print-ticket {
    font-family: monospace;
    width: 280px; /* approximated width for 80mm printer */
    padding: 6px;
    color: #000;
}
.print-ticket h2 { text-align: center; margin: 6px 0; font-size: 16px; }
.print-ticket .line { border-top: 1px dashed #000; margin: 6px 0; }
.print-ticket .items { width: 100%; font-size: 13px; }
.print-ticket .items div { display: flex; justify-content: space-between; margin-bottom: 4px; }
.print-ticket .totals { margin-top: 8px; font-weight: 700; }
@media print {
    @page { size: auto; margin: 0; }
    body * { visibility: visible; }
}

/* ===== Estilos para los botones de respaldo ===== */
.backup-button {
    background: linear-gradient(to right, #4CAF50, #66BB6A);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    margin: 10px 5px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: auto;
    display: inline-block;
}

.backup-button:hover {
    background: linear-gradient(to right, #43A047, #5CB85C);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.restore-button {
    background: linear-gradient(to right, #2196F3, #03A9F4);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    margin: 10px 5px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: auto;
    display: inline-block;
}

.restore-button:hover {
    background: linear-gradient(to right, #1976D2, #0288D1);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* ===== NUEVOS ESTILOS PARA INNOVACIONES ===== */

/* Modal de categorías */
.categorias-lista {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.categoria-btn {
    background: linear-gradient(to right, #26c6da, #00acc1);
    color: white;
    border: none;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

.categoria-btn:hover {
    background: linear-gradient(to right, #00acc1, #0097a7);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Botones de acción mejorados */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

/* Responsive para modales de categorías */
@media (max-width: 768px) {
    .categorias-lista {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
}