body {
    font-family: sans-serif;
    background-color: #f4f4f9;
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 600px;
    text-align: center;
}

h1, p {
    text-align: center;
}

.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.form-group {
    text-align: left;
}

label {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

input[type="color"] {
    width: 100%;
    height: 40px;
    border: 1px solid #ddd;
    padding: 0;
    cursor: pointer;
}

input[type="text"], input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
}

button {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

button:hover {
    background-color: #0056b3;
}

.results {
    margin-top: 30px;
}

#mockup-canvas {
    border: 1px solid #ddd;
    background-color: #f0f0f0;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}