body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    background: #f5f7fa;
    color: #333;
}

.sidebar {
    width: 250px;
    background: #0a2e6a;
    color: white;
    height: 100vh;
    padding: 20px;
    position: fixed;
}

.sidebar h2 {
    text-align: center;
    margin-bottom: 30px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin: 20px 0;
}

.sidebar ul li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    display: flex;
    align-items: center;
}

.sidebar ul li a i {
    margin-right: 10px;
}

.sidebar ul li a.active, .sidebar ul li a:hover {
    background: #072058;
    padding: 10px;
    border-radius: 8px;
}

.main-content {
    margin-left: 270px;
    padding: 30px;
    flex: 1;
}

.stats-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.card {
    flex: 1;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    min-width: 200px;
    text-align: center;
}

.card h3 {
    margin-bottom: 15px;
    color: #0a2e6a;
}

.table-container {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th, table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ccc;
}

table tr:hover {
    background: #f1f1f1;
}

button {
    padding: 5px 10px;
    background: #0a2e6a;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background: #072058;
}