* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
    transition: background-color 0.5s ease-in-out;
}

.canvas {
    text-align: center;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    max-width: 400px;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
}

.button {
    display: inline-block;
    padding: 12px 20px;
    margin: 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    transition: transform 0.3s, box-shadow 0.3s;
}

.button:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

/* Colors */
#grey { background-color: grey; color: white; }
#yellow { background-color: yellow; color: black; }
#purple { background-color: purple; color: white; }
#aqua { background-color: aqua; color: black; }

h2 {
    font-size: 16px;
    margin-top: 20px;
    color: #555;
}

span {
    font-weight: bold;
    color: #007bff;
}