.demo-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin: 15px 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.demo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-title, .card-subtitle, .card-text {
    margin: 0 0 10px 0;
}

.card-title {
    font-size: 1.5em;
    color: #2c3e50;
    font-weight: bold;
}

.card-subtitle {
    font-size: 1.1em;
    color: #7f8c8d;
}

.card-text {
    color: #34495e;
    line-height: 1.5;
}

.btn-demo, .btn-outline {
    padding: 8px 16px;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.btn-demo {
    background: #3498db;
    color: white;
    border: 2px solid #3498db;
}

.btn-outline {
    background: transparent;
    color: #3498db;
    border: 2px solid #3498db;
}

.btn-demo:hover, .btn-outline:hover {
    transform: scale(1.05);
}