body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

.card {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border: none;
    border-radius: 10px;
    margin-bottom: 20px;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    font-weight: bold;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-card {
    text-align: center;
    padding: 20px;
}

.stat-value {
    font-size: 2em;
    font-weight: bold;
    color: #0d6efd;
}

.stat-label {
    color: #6c757d;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .table-responsive {
        overflow-x: auto;
    }
}