body {
            font-family: "Segoe UI", Roboto, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            margin: 0;
            padding: 40px 20px;
        }
        h1 {
            text-align: center;
            font-weight: 600;
            margin-bottom: 30px;
            color: #222;
        }
        .file-list {
            max-width: 800px;
            margin: 0 auto;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.08);
            overflow: hidden;
        }
        table {
            width: 100%;
            border-collapse: collapse;
        }
        thead {
            background: #f1f3f6;
            border-bottom: 2px solid #dee2e6;
        }
        th, td {
            padding: 14px 16px;
            text-align: left;
        }
        th {
            font-size: 15px;
            font-weight: 600;
            color: #444;
        }
        td {
            border-bottom: 1px solid #eee;
        }
        tr:hover td {
            background: #fafafa;
        }
        .btn {
            background: #0726d3ff;
            color: #fff;
            text-decoration: none;
            padding: 8px 14px;
            border-radius: 6px;
            font-size: 14px;
            transition: background 0.2s ease-in-out;
        }
        .btn:hover {
            background: #0726d3ff;
        }
        .empty {
            text-align: center;
            padding: 30px;
            color: #777;
        }
        @media (max-width: 600px) {
            th:nth-child(2), td:nth-child(2) {
                display: none;
            }
        }