body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 400px;
}

h1 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 2.5rem;
    transition: color 0.3s ease;
}

p {
    color: #666;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

button {
    background: #667eea;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 0 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s ease;
}

button:hover {
    background: #764ba2;
}

button:active {
    transform: scale(0.98);
}

.colorful {
    color: #e74c3c !important;
}