* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            max-width: 1400px;
            margin: 0 auto;
            overflow: hidden;
            animation: slideIn 0.6s ease-out;
            display: flex;
            min-height: 600px;
            width: 1100px;
        }

        @keyframes slideIn {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Main Content */
        .main-content {
            flex: 1;
            padding: 25px;
            display: flex;
            flex-direction: column;
        }

        .content-body {
            display: flex;
            flex: 1;
        }

        /* Header */
        .header {
            background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
            color: white;
            padding: 20px 25px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            margin-bottom: 25px;
            border-radius: 10px 10px 0 0;
            width: 1100px;
            margin-left: -25px;
            margin-top: -25px;
        }

        .header h1 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 2px;
        }

        .header .nit {
            font-size: 14px;
            opacity: 0.9;
        }

        /* Left Section - Table */
        .table-section {
            flex: 1;
            padding-right: 25px;
            border-right: 1px solid #e5e7eb;
        }

        /* Right Section - Controls */
        .controls-section {
            width: 300px;
            padding-left: 25px;
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            display: flex;
            flex-direction: column;
            gap: 20px;
            border-radius: 8px;
            margin-left: 20px;
        }

        /* Table */
        .tabla {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-bottom: 20px;
            height: fit-content;
        }

        .tabla-header {
            background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
            color: white;
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
            font-weight: 600;
            font-size: 14px;
        }

        .tabla-header div {
            padding: 15px 8px;
            text-align: center;
            border-right: 1px solid rgba(255, 255, 255, 0.2);
        }

        .tabla-header div:last-child {
            border-right: none;
        }

        .tabla-body {
            background: white;
        }

        .tabla-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
            border-bottom: 1px solid #e5e7eb;
            transition: all 0.3s ease;
        }

        .tabla-row:hover {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        }

        .tabla-row div {
            padding: 12px 8px;
            display: flex;
            align-items: center;
            font-size: 13px;
            border-right: 1px solid #e5e7eb;
        }

        .tabla-row div:last-child {
            border-right: none;
        }

        .tabla-row .codigo {
            justify-content: center;
            font-family: 'Courier New', monospace;
            font-weight: 600;
            color: #4338ca;
        }

        .tabla-row .variacion {
            font-weight: 500;
            color: #374151;
        }

        .tabla-row .cuenta {
            font-weight: 500;
            color: #374151;
        }

        .tabla-row .clasificacion {
            justify-content: center;
            font-family: 'Courier New', monospace;
            font-weight: 600;
            color: #059669;
        }

        .tabla-row .saldo {
            justify-content: flex-end;
            font-family: 'Courier New', monospace;
            font-weight: 600;
            color: #374151;
        }

        /* Date Controls */
        .date-controls {
            margin-top: 10px;
            flex-direction: column;
            gap: 15px;
        }

        .date-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .date-label {
            font-size: 14px;
            font-weight: 600;
            color: #374151;
        }

        .date-inputs {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .date-field {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .date-numero {
            width: 50px;
            padding: 8px 6px;
            text-align: center;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 2px;
        }

        .date-spinner {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }

        .spinner-btn {
            background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
            color: white;
            border: none;
            width: 20px;
            height: 20px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .spinner-btn:hover {
            transform: scale(1.1);
        }

        /* Form Fields */
        .form-field {
            display: flex;
            flex-direction: column;
            gap: 8px;
            width: 255px;
        }

        .form-field label {
            font-size: 14px;
            font-weight: 600;
            color: #374151;
        }

        .form-field select {
            padding: 10px 12px;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            font-size: 14px;
            transition: all 0.3s ease;
            font-family: inherit;
            background: white;
        }

        .form-field select:focus {
            outline: none;
            border-color: #4338ca;
            box-shadow: 0 0 0 3px rgba(67, 56, 202, 0.1);
        }

        /* Cargar Button */
        .cargar-btn {
            background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(67, 56, 202, 0.3);
            font-size: 14px;
            width: 255px;
        }

        .cargar-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(67, 56, 202, 0.4);
        }

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

        /* Cash Flow Fields */
        .cashflow-fields {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 20px;
        }

        .cashflow-section {
            margin-left: -25px;
            flex-direction: column;
            gap: 10px;
            padding: 15px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .cashflow-field {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .cashflow-field label {
            font-size: 13px;
            font-weight: 600;
            color: #374151;
            min-width: 100px;
        }

        .cashflow-field input {
            width: 160px;
            padding: 8px 12px;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            font-size: 13px;
            transition: all 0.3s ease;
            font-family: 'Courier New', monospace;
            text-align: right;
            background: #f9fafb;
        }

        .cashflow-field input:focus {
            outline: none;
            border-color: #4338ca;
            box-shadow: 0 0 0 3px rgba(67, 56, 202, 0.1);
        }

        /* Efectivo Fields */
        .efectivo-section {
            margin-left: -25px;
            flex-direction: column;
            gap: 10px;
            padding: 15px;
            background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
            border-radius: 8px;
            border: 2px solid #a7f3d0;
        }

        .efectivo-field {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .efectivo-field label {
            font-size: 13px;
            font-weight: 600;
            color: #065f46;
            min-width: 100px;
        }

        .efectivo-field input {
            width: 160px;
            padding: 8px 12px;
            border: 2px solid #a7f3d0;
            border-radius: 6px;
            font-size: 13px;
            font-family: 'Courier New', monospace;
            text-align: right;
            background: white;
            color: #065f46;
            font-weight: 600;
        }

        /* Bottom Buttons */
        .bottom-buttons {
            margin-left: 60px;
            gap: 10px;
            margin-top: 1px;
            padding-top: 20px;
        }

        .bottom-btn {
            flex: 1;
            padding: 10px 16px;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 13px;
        }

        .pdf-btn {
            background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
            color: white;
            box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
        }

        .excel-btn {
            background: linear-gradient(135deg, #059669 0%, #10b981 100%);
            color: white;
            box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
        }

        .bottom-btn:hover {
            transform: translateY(-2px);
        }

        /* Responsive */
        @media (max-width: 768px) {
            body { padding: 10px; }
            .container { 
                min-height: auto;
            }
            
            .main-content {
                padding: 20px 15px;
            }
            
            .header { 
                padding: 15px 20px;
                text-align: center;
                margin-bottom: 20px;
            }
            
            .content-body {
                flex-direction: column;
            }
            
            .table-section {
                border-right: none;
                border-bottom: 1px solid #e5e7eb;
                padding-right: 0;
                padding-bottom: 20px;
                margin-bottom: 20px;
            }
            
            .controls-section {
                width: 100%;
                padding-left: 0;
                margin-left: 0;
            }
            
            .tabla-header {
                grid-template-columns: 1fr;
                font-size: 12px;
            }
            
            .tabla-header div {
                padding: 12px 10px;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            }
            
            .tabla-row {
                grid-template-columns: 1fr;
            }
            
            .tabla-row div {
                padding: 10px;
                border-right: none;
                border-bottom: 1px solid #f3f4f6;
                justify-content: flex-start !important;
            }
            
            .date-inputs {
                flex-wrap: wrap;
                gap: 5px;
            }
            
            .date-numero {
                width: 45px;
                padding: 6px 4px;
            }
            
            .spinner-btn {
                width: 18px;
                height: 18px;
                font-size: 10px;
            }
            
            .cashflow-field,
            .efectivo-field {
                flex-direction: column;
                align-items: stretch;
                gap: 5px;
            }
            
            .cashflow-field label,
            .efectivo-field label {
                min-width: auto;
            }
            
            .bottom-buttons {
                flex-direction: column;
                gap: 10px;
            }
            
            .bottom-btn {
                padding: 12px 16px;
                font-size: 14px;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .controls-section {
                width: 280px;
            }
            
            .tabla-header {
                font-size: 13px;
            }
            
            .tabla-header div {
                padding: 12px 6px;
            }
            
            .tabla-row div {
                padding: 10px 6px;
                font-size: 12px;
            }
        }

        @media (min-width: 1441px) {
            .container {
                max-width: 1600px;
            }
            
            .main-content {
                padding: 30px;
            }
            
            .controls-section {
                width: 350px;
                padding-left: 30px;
            }
            
            .table-section {
                padding-right: 30px;
            }
            
            .tabla-header div {
                padding: 18px 12px;
                font-size: 15px;
            }
            
            .tabla-row div {
                padding: 15px 12px;
                font-size: 14px;
            }
            
            .date-numero {
                width: 55px;
                padding: 10px 8px;
                font-size: 14px;
            }
            
            .spinner-btn {
                width: 22px;
                height: 22px;
                font-size: 13px;
            }
            
            .cargar-btn {
                padding: 14px 24px;
                font-size: 15px;
            }
            
            .bottom-btn {
                padding: 12px 20px;
                font-size: 14px;
            }
        }

        @media (min-width: 1921px) {
            .container {
                max-width: 1800px;
            }
            
            .main-content {
                padding: 40px;
            }
            
            .header {
                padding: 25px 30px;
            }
            
            .header h1 {
                font-size: 20px;
            }
            
            .controls-section {
                width: 400px;
                padding-left: 40px;
            }
            
            .table-section {
                padding-right: 40px;
            }
            
            .tabla-header div {
                padding: 20px 15px;
                font-size: 16px;
            }
            
            .tabla-row div {
                padding: 18px 15px;
                font-size: 15px;
            }
            
            .date-numero {
                width: 60px;
                padding: 12px 10px;
                font-size: 15px;
            }
            
            .spinner-btn {
                width: 24px;
                height: 24px;
                font-size: 14px;
            }
            
            .cargar-btn {
                padding: 16px 28px;
                font-size: 16px;
            }
            
            .bottom-btn {
                padding: 14px 24px;
                font-size: 15px;
            }
        }

        /* Scroll for table */
        .table-section {
            overflow-x: auto;
        }

        .tabla {
            min-width: 700px;
        }