* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 40px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 28px;
}

.success {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    padding: 20px;
    border-radius: 8px;
    margin: 15px 0;
}

.success h3 {
    color: #1a5f3c;
}

.info {
    background: #f0f4f8;
    padding: 20px;
    border-radius: 8px;
    margin: 15px 0;
}

.info ul {
    list-style: none;
    padding-left: 0;
}

.info li {
    padding: 8px 0;
    border-bottom: 1px solid #e0e0e0;
}

.info li:last-child {
    border-bottom: none;
}

.demo {
    background: #fff3e0;
    padding: 20px;
    border-radius: 8px;
    margin: 15px 0;
    text-align: center;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

#clickCount {
    margin-top: 15px;
    font-size: 18px;
    color: #555;
}