body {
    background-color: #f8f9fa;
}
.navbar-brand {
    font-weight: 600;
}
.card {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}
.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}
.task-card .btn-group {
    opacity: 0.7;
    transition: opacity 0.2s;
}
.task-card:hover .btn-group {
    opacity: 1;
}
pre {
    background-color: #f1f3f5;
    padding: 1rem;
    border-radius: 0.25rem;
    border: 1px solid #dee2e6;
}