.interactive-demo {
    font-family: 'Georgia', serif;
    line-height: 1.6;
    max-width: 600px;
}

.demo-controls {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.demo-button {
    padding: 8px 16px;
    border: 1px solid #ddd;
    background: #f8f9fa;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

.demo-button:hover {
    background: #e9ecef;
}

.demo-button.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
}

.demo-text p::first-line {
    transition: all 0.3s ease;
}

.style-bold p::first-line {
    font-weight: bold;
    color: #2563eb;
}

.style-caps p::first-line {
    font-variant: small-caps;
    letter-spacing: 1px;
    font-weight: 600;
}

.style-shadow p::first-line {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    font-size: 1.2em;
    color: #4338ca;
}

.style-gradient p::first-line {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
    font-size: 1.1em;
}