* {
    margin: 0;
    padding: 0;
}

/* Demo Page Specific Styles */
#main-content {
    width: 90%;
    max-width: 1200px;
    margin: 100px auto 40px;
    /* Top margin accounts for fixed header */
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.demo-section {
    text-align: center;
    padding: 40px 20px;
}

.demo-section h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: #21a1f1;
}

.demo-section p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #666;
}

/* Demo Card styling for each interactive demo */
.demo-card {
    background: #fafafa;
    margin: 20px auto;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 600px;
}

.demo-card h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #333;
}

.demo-card p {
    font-size: 1rem;
    margin-bottom: 15px;
    color: #666;
}