:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #34495e;
            --success-color: #2ecc71;
            --warning-color: #f39c12;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
        }
        
        .user-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn {
            padding: 8px 15px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .btn-primary {
            background-color: var(--secondary-color);
            color: white;
        }
        
        .btn-danger {
            background-color: var(--accent-color);
            color: white;
        }
        
        .btn-success {
            background-color: var(--success-color);
            color: white;
        }
        
        .btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
        }
        
        .login-container {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        }
        
        .login-form {
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            width: 100%;
            max-width: 400px;
        }
        
        .login-form h2 {
            text-align: center;
            margin-bottom: 20px;
            color: var(--primary-color);
        }
        
        .form-group {
            margin-bottom: 15px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }
        
        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--secondary-color);
        }
        
        .dashboard {
            padding: 20px 0;
        }
        
        .card {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        
        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-color);
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
        }
        
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        
        th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        tr:hover {
            background-color: #f8f9fa;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            border-radius: 8px;
            width: 90%;
            max-width: 600px;
            max-height: 90vh;
            overflow-y: auto;
        }
        
        .modal-header {
            padding: 15px 20px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-title {
            font-size: 18px;
            font-weight: 600;
        }
        
        .close {
            font-size: 24px;
            cursor: pointer;
            color: #999;
        }
        
        .modal-body {
            padding: 20px;
        }
        
        .modal-footer {
            padding: 15px 20px;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }
        
        .hidden {
            display: none;
        }
        
        .alert {
            padding: 10px 15px;
            border-radius: 4px;
            margin-bottom: 15px;
        }
        
        .alert-success {
            background-color: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        
        .alert-danger {
            background-color: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }
        
        .currency-input {
            position: relative;
        }
        
        .currency-input::before {
            content: "Gs.";
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            color: #666;
        }
        
        .currency-input input {
            padding-left: 45px;
        }
        
        .tabs {
            display: flex;
            border-bottom: 1px solid #ddd;
            margin-bottom: 20px;
        }
        
        .tab {
            padding: 10px 20px;
            cursor: pointer;
            border-bottom: 2px solid transparent;
        }
        
        .tab.active {
            border-bottom: 2px solid var(--secondary-color);
            color: var(--secondary-color);
            font-weight: 600;
        }
        
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
            display: block;
        }


        /* Mejoras para centrado de modales */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    /* Asegurar que sea flex container */
    display: none; /* Se mantiene none por defecto */
    flex-direction: column;
}

/* Cuando el modal está activo */
.modal[style*="display: block"],
.modal.active {
    display: flex !important;
}

.modal-content {
    background-color: white;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    margin: 0; /* Quitar márgenes automáticos */
    /* Añadir animación suave */
    animation: modalAppear 0.3s ease-out;
}

/* Animación para el modal */
@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Estilos específicos para modales más pequeños */
.modal-content.small {
    max-width: 400px;
}

.modal-content.large {
    max-width: 800px;
}

/* Mejoras para el formulario dentro del modal */
.montos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.total-group {
    border-top: 2px solid #eee;
    padding-top: 15px;
}

.total-group .form-control {
    font-weight: bold;
    font-size: 18px;
    color: var(--primary-color);
}

/* Badges para estados */
.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.badge-primary {
    background-color: var(--secondary-color);
    color: white;
}

.badge-secondary {
    background-color: #6c757d;
    color: white;
}

.badge-success {
    background-color: var(--success-color);
    color: white;
}

.badge-danger {
    background-color: var(--accent-color);
    color: white;
}

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

/* Responsive para móviles */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .montos-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
        margin: 5px 0;
    }
}

/* Asegurar que los selects tengan el mismo estilo */
.form-control[type="date"],
.form-control[type="password"],
.form-control[type="text"],
.form-control[type="number"],
.form-control select,
.form-control textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    background-color: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* Estilos para los botones pequeños en tablas */
.btn-sm {
    padding: 5px 10px;
    font-size: 14px;
}

/* Espaciado entre botones en tablas */
table .btn {
    margin: 0 2px;
}

/* Estilos para filtros de exportación */
.filtros-exportacion {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.filtros-exportacion h4 {
    color: #495057;
    font-size: 1.1rem;
    font-weight: 600;
}

.filtros-exportacion .form-group {
    margin-bottom: 0;
}

.filtros-exportacion label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 5px;
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
}

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

/* Responsive */
@media (max-width: 768px) {
    #formExportacion {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .card-header > div {
        display: flex;
        flex-direction: column;
        width: 100%;
    }
}


/* Estilos para la sección de gráficos */
.graficos-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.chart-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
}

.estadistica-item {
    background: white;
    padding: 10px 15px;
    border-radius: 5px;
    border-left: 4px solid var(--secondary-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.filtros-graficos {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.filtros-graficos h4 {
    color: #495057;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Responsive para gráficos */
@media (max-width: 768px) {
    .graficos-container {
        grid-template-columns: 1fr;
    }
    
    #formFiltrosGraficos {
        grid-template-columns: 1fr;
    }
    
    .resumen-estadistico #resumenEstadistico {
        grid-template-columns: 1fr;
    }
}