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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
            padding: 10px;
        }

        .container {
            max-width: 98vw;
            margin: 0 auto;
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        h1 {
            text-align: center;
            margin-bottom: 15px;
            color: #2c3e50;
            font-size: 22px;
        }

        .upload-section {
            margin-bottom: 15px;
            text-align: center;
        }

        .file-input {
            margin: 8px 0;
            padding: 6px;
            border: 2px dashed #3498db;
            border-radius: 5px;
            background: #f8f9fa;
            cursor: pointer;
            width: 100%;
            max-width: 350px;
        }

        .search-section {
            margin-bottom: 15px;
        }

        .search-input {
            width: 100%;
            padding: 10px;
            font-size: 14px;
            border: 2px solid #ddd;
            border-radius: 5px;
            margin-bottom: 10px;
        }

        .search-input:focus {
            outline: none;
            border-color: #3498db;
        }

        .btn {
            padding: 10px 18px;
            background: #3498db;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 14px;
            transition: background 0.3s;
        }

        .btn:hover {
            background: #2980b9;
        }

        .btn:disabled {
            background: #bdc3c7;
            cursor: not-allowed;
        }

        .btn-danger {
            background: #e74c3c;
        }

        .btn-danger:hover {
            background: #c0392b;
        }

        .results-section {
            margin-top: 15px;
        }

        .results-info {
            margin-bottom: 10px;
            font-weight: bold;
            color: #2c3e50;
            font-size: 14px;
        }

        .results-table-container {
            width: 100%;
            overflow-x: auto;
            max-height: 65vh;
            border: 1px solid #ddd;
            border-radius: 5px;
        }

        .results-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 12px;
            table-layout: fixed;
        }

        .results-table th,
        .results-table td {
            padding: 6px 8px;
            text-align: left;
            border-right: 1px solid #e0e0e0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            position: relative;
            min-width: 50px;
        }

        .results-table th {
            background-color: #f8f9fa;
            font-weight: bold;
            position: sticky;
            top: 0;
            z-index: 10;
            border-bottom: 2px solid #ddd;
            cursor: col-resize;
            user-select: none;
        }

        .results-table th .col-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .results-table th .col-actions {
            display: flex;
            gap: 5px;
        }

        .results-table th .hide-col-btn {
            background: none;
            border: none;
            cursor: pointer;
            color: #7f8c8d;
            font-size: 12px;
            padding: 2px;
        }

        .results-table th .hide-col-btn:hover {
            color: #e74c3c;
        }

        .results-table td {
            border-bottom: 1px solid #e0e0e0;
        }

        .results-table tr:hover {
            background-color: #f8f9fa;
        }

        .results-table tr:last-child td {
            border-bottom: none;
        }

        .loading {
            text-align: center;
            padding: 15px;
            color: #7f8c8d;
            font-size: 14px;
        }

        .error {
            color: #e74c3c;
            text-align: center;
            margin: 8px 0;
            padding: 8px;
            font-size: 14px;
        }

        .success {
            color: #27ae60;
            text-align: center;
            margin: 8px 0;
            font-size: 13px;
        }

        .progress-bar {
            width: 100%;
            height: 14px;
            background-color: #f0f0f0;
            border-radius: 7px;
            margin: 8px 0;
            overflow: hidden;
        }

        .progress {
            height: 100%;
            background-color: #3498db;
            transition: width 0.3s;
        }

        .file-stats {
            margin: 6px 0;
            padding: 6px;
            background: #f8f9fa;
            border-radius: 4px;
            font-size: 13px;
        }

        .highlight {
            background-color: yellow;
            font-weight: bold;
            padding: 1px 2px;
            border-radius: 2px;
        }

        .date-cell {
            min-width: 80px;
        }

        .number-cell {
            text-align: right;
            font-family: 'Courier New', monospace;
        }

        .table-controls {
            margin-bottom: 10px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .row-actions {
            display: flex;
            gap: 5px;
        }

        .delete-row-btn {
            background: none;
            border: none;
            cursor: pointer;
            color: #7f8c8d;
            padding: 2px 5px;
        }

        .delete-row-btn:hover {
            color: #e74c3c;
        }

        .col-resize-handle {
            position: absolute;
            top: 0;
            right: 0;
            width: 5px;
            height: 100%;
            background-color: #ddd;
            cursor: col-resize;
            z-index: 20;
        }
        
        .corrected-header {
            color: #27ae60;
            font-weight: bold;
        }
        
        .resizing {
            cursor: col-resize !important;
            user-select: none !important;
        }

        .debug-info {
            background: #fff3cd;
            border: 1px solid #ffeaa7;
            border-radius: 4px;
            padding: 8px;
            margin: 8px 0;
            font-size: 12px;
            color: #856404;
        }