body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
}

.back-link {
    position: absolute;
    top: 20px;
    left: 20px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.back-link:hover {
    background: #eee;
}

.container {
    text-align: center;
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    padding-top: 50px;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

.palette {
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 30px;
}

.color {
    height: 100px;
    padding-bottom: 20px;
    text-align: left;
}

.hex-code {
    display: inline-block;
    background-color: #333;
    color: #fff;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-family: monospace;
    margin: 10px 0 0 10px;
}

button {
    padding: 15px 40px;
    font-size: 18px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    margin-bottom: 20px;
}

button:hover {
    background-color: #555;
}