reoptimize the code for me "<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>ICA Video Enterprise Sharing Platform (VESP)</title>
    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap" rel="stylesheet">
    <style>
        :root {
            --primary-dark-blue: #00264d;
            --primary-red: #ED1C24;
            --secondary-white: #FFFFFF;
            --background-color: #F0F4F8;
            --text-color: #333333;
            --border-radius: 10px;
            --box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }

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

        body {
            font-family: 'Roboto', Arial, sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            line-height: 1.6;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            background-color: var(--primary-dark-blue);
            color: var(--secondary-white);
            padding: 1.5rem 0;
            box-shadow: var(--box-shadow);
            margin-bottom: 20px;
        }

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

        .logo-container {
            display: flex;
            align-items: center;
        }

        .logo-image {
            height: 40px;
            margin-right: 10px;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary-white);
        }

        nav ul {
            list-style: none;
            display: flex;
            align-items: center;
        }

        nav li {
            margin-left: 20px;
        }

        nav a {
            color: var(--secondary-white);
            text-decoration: none;
            font-weight: 500;
            padding: 10px 15px;
            transition: background-color 0.3s, opacity 0.3s;
            border-radius: var(--border-radius);
        }

        nav a:hover, nav a.active {
            background-color: var(--primary-red);
        }

        .card {
            background: #ffffff;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 30px;
            margin-bottom: 20px;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        h1, h2, h3 {
            color: var(--primary-dark-blue);
            margin-bottom: 20px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--secondary-white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }

        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
            cursor: pointer;
        }

        th {
            background-color: var(--primary-dark-blue);
            color: var(--secondary-white);
        }

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

        .badge {
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            text-transform: uppercase;
        }

        .badge-pending { background-color: #FFA500; color: var(--secondary-white); }
        .badge-approved { background-color: #28A745; color: var(--secondary-white); }
        .badge-rejected { background-color: var(--primary-red); color: var(--secondary-white); }
        .badge-high { background-color: #d9534f; color: var(--secondary-white); }
        .badge-medium { background-color: #f0ad4e; color: var(--secondary-white); }
        .badge-low { background-color: #5bc0de; color: var(--secondary-white); }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }

        button {
            background-color: var(--primary-dark-blue);
            color: var(--secondary-white);
            border: none;
            padding: 10px 20px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s, transform 0.3s, box-shadow 0.3s;
        }

        button:hover {
            transform: translateY(-3px);
            background-color: #001f3d;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        button.secondary {
            background-color: var(--secondary-white);
            color: var(--primary-dark-blue);
            border: 1px solid var(--primary-dark-blue);
        }

        button.secondary:hover {
            background-color: #e0e0e0;
        }

        input, textarea, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            margin-bottom: 10px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        input:focus, textarea:focus, select:focus {
            border-color: var(--primary-dark-blue);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .priority-select {
            width: auto;
            display: inline-block;
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }

            nav ul {
                margin-top: 10px;
            }

            nav li {
                margin-left: 0;
                margin-right: 20px;
            }
        }
    </style>
</head>
<body>
<header>
    <div class="container header-content">
        <div class="logo-container">
            <img src="https://file.go.gov.sg/icalogo.png" alt="ICA Logo" class="logo-image">
            <span class="logo-text">ICA Video Enterprise Sharing Platform</span>
        </div>
        <nav>
            <ul>
                <li><a href="#" class="nav-link active" data-target="dashboard">Dashboard</a></li>
                <li><a href="#" class="nav-link" data-target="upload">Upload</a></li>
                <li><a href="#" class="nav-link" data-target="requests">Requests</a></li>
                <li><a href="#" class="nav-link" data-target="cases">Cases</a></li>
                <li><a href="#" class="nav-link" data-target="analytics">Analytics</a></li>
                <li><a href="#" class="nav-link" data-target="admin">Admin</a></li>
                <li><a href="#" id="logout">Logout</a></li>
            </ul>
        </nav>
    </div>
</header>

<div id="dashboard" class="container tab-content active">
    <h1>Dashboard Overview</h1>
    <div class="stats-grid">
        <div class="card">
            <h3>Total Videos Uploaded</h3>
            <p>124 videos this month</p>
        </div>
        <div class="card">
            <h3>Requests Resolved within SLA</h3>
            <p>85% of requests this month</p>
        </div>
        <div class="card">
            <h3>Current Active Cases</h3>
            <p>12 ongoing cases</p>
        </div>
    </div>
</div>

<div id="upload" class="container tab-content">
    <h2>Retrieve Video</h2>
    <div class="card">
        <form id="retrieve-form">
            <label for="case-number">Case Number:</label>
            <input type="text" id="case-number" name="case-number" required>

            <button type="submit">Retrieve Video</button>
        </form>
    </div>
</div>

<div id="requests" class="container tab-content">
    <h2>Video Evidence Requests</h2>
    <div class="card">
        <form id="request-form">
            <label for="case-number-request">Case Number:</label>
            <input type="text" id="case-number-request" name="case-number" required>

            <label for="priority">Priority:</label>
            <select id="priority" name="priority" class="priority-select">
                <option value="high">High</option>
                <option value="medium">Medium</option>
                <option value="low">Low</option>
            </select>

            <button type="submit">Request Video</button>
        </form>
    </div>
</div>

<div id="cases" class="container tab-content">
    <h2>Active Cases</h2>
    <div class="card">
        <table>
            <thead>
                <tr>
                    <th>Case Number</th>
                    <th>Description</th>
                    <th>Status</th>
                    <th>Last Updated</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>ICA-2023-007</td>
                    <td>Unauthorized Entry Incident</td>
                    <td><span class="badge badge-pending">In Progress</span></td>
                    <td>2023-04-20</td>
                    <td><button onclick="viewCase('ICA-2023-007')">View Details</button></td>
                </tr>
                <tr>
                    <td>ICA-2023-008</td>
                    <td>Security Breach Investigation</td>
                    <td><span class="badge badge-approved">Accepted</span></td>
                    <td>2023-05-01</td>
                    <td><button onclick="viewCase('ICA-2023-008')">View Details</button></td>
                </tr>
                <tr>
                    <td>ICA-2023-009</td>
                    <td>Access Control Failure</td>
                    <td><span class="badge badge-rejected">Rejected</span></td>
                    <td>2023-03-28</td>
                    <td><button onclick="viewCase('ICA-2023-009')">View Details</button></td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

<div id="analytics" class="container tab-content">
    <h2>Analytics Dashboard</h2>
    <div class="card">
        <h3>Video Uploads</h3>
        <p>This Month: 124 Videos</p>
        
        <h3>Request SLA Compliance</h3>
        <p>85% of requests met SLA</p>
        
        <h3>Priority Request Breakdown</h3>
        <ul>
            <li>High: 30%</li>
            <li>Medium: 50%</li>
            <li>Low: 20%</li>
        </ul>
    </div>
</div>

<div id="admin" class="container tab-content">
    <h2>Admin Panel</h2>
    <div class="card">
        <h3>Manage Users</h3>
        <form id="admin-manage-users-form">
            <label for="user-email">Email Address:</label>
            <input type="email" id="user-email" name="user-email" required>

            <label for="user-role">Role:</label>
            <select id="user-role" name="user-role">
                <option value="ops-officer">Ops Officer</option>
                <option value="enforcement-officer">Enforcement Officer</option>
                <option value="admin">Admin</option>
            </select>

            <button type="submit">Add User</button>
        </form>
    </div>
    <div class="card">
        <h3>Current Users</h3>
        <table>
            <thead>
                <tr>
                    <th>User</th>
                    <th>Email</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody id="user-list">
                <tr>
                    <td>Alice</td>
                    <td><PRESIDIO_ANONYMIZED_EMAIL_ADDRESS></td>
                    <td><button onclick="removeUser('alice@ica.gov.sg')">Remove</button></td>
                </tr>
                <tr>
                    <td>Bob</td>
                    <td><PRESIDIO_ANONYMIZED_EMAIL_ADDRESS></td>
                    <td><button onclick="removeUser('bob@ica.gov.sg')">Remove</button></td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

<script>
    // Function to handle visibility of page sections based on navigation
    function showSection(event) {
        const targetId = event.currentTarget.getAttribute('data-target');
        const sections = document.querySelectorAll('.container.tab-content');
        const navLinks = document.querySelectorAll('.nav-link');

        sections.forEach(section => section.classList.remove('active'));
        navLinks.forEach(link => link.classList.remove('active'));

        document.getElementById(targetId).classList.add('active');
        event.currentTarget.classList.add('active');
    }

    // Assign event listeners to navigation links
    document.querySelectorAll('.nav-link').forEach(link => {
        link.addEventListener('click', showSection);
    });

    // Mock functions for request approval and rejection
    function approveRequest(requestId) {
        alert(`Request ${requestId} approved.`);
    }

    function rejectRequest(requestId) {
        alert(`Request ${requestId} rejected.`);
    }

    // Function to view case details
    function viewCase(caseId) {
        alert(`Viewing details for case ${caseId}.`);
    }

    // Function to remove a user
    function removeUser(email) {
        const confirmRemoval = confirm(`Are you sure you want to remove the user with email: ${email}?`);
        if (confirmRemoval) {
            alert(`User ${email} removed successfully.`);
            const rows = document.querySelectorAll('#user-list tr');
            rows.forEach(row => {
                if (row.textContent.includes(email)) {
                    row.remove();
                }
            });
        }
    }

    // Function to add sorting to tables
    document.querySelectorAll('th').forEach(header => {
        header.addEventListener('click', function() {
            const table = header.closest('table');
            const tbody = table.querySelector('tbody');
            const rowsArray = Array.from(tbody.querySelectorAll('tr'));
            const headerIndex = Array.from(header.parentNode.children).indexOf(header);
            const isAsc = header.getAttribute('data-sort') === 'asc';

            rowsArray.sort((a, b) => {
                const aText = a.children[headerIndex].innerText;
                const bText = b.children[headerIndex].innerText;
                return isAsc ? aText.localeCompare(bText) : bText.localeCompare(aText);
            });

            rowsArray.forEach(row => tbody.appendChild(row));
            header.setAttribute('data-sort', isAsc ? 'desc' : 'asc');
        });
    });

    document.getElementById('request-form').addEventListener('submit', function(event) {
        event.preventDefault();
        alert('Video evidence request submitted.');
    });

    document.getElementById('retrieve-form').addEventListener('submit', function(event) {
        event.preventDefault();
        alert('Video retrieval initiated.');
    });

    document.getElementById('admin-manage-users-form').addEventListener('submit', function(event) {
        event.preventDefault();
        alert('User added successfully.');
    });
</script>
</body>
</html>" i need it to be like useful for the ops officer, which is the one granting and processing the request and the enforcment officer which is the one