body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
}

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

h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.progress {
    background-color: #e9ecef;
}

.list-group-item {
    border-left: 3px solid #667eea;
}

.list-group-item:hover {
    background-color: #f8f9fa;
}

code {
    background-color: #f8f9fa;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}