body{
    margin:0;
    font-family: 'Segoe UI', sans-serif;
    background:#0b0f17;
    color:white;
}

.header{
    display:flex;
    justify-content:space-between;
    padding:20px 40px;
    background:#111;
}

.header a{
    color:#d4af37;
    text-decoration:none;
    margin-left:20px;
}

.logo{
    font-weight:800;
    font-size:20px;
    color:#d4af37;
}

.hero{
    text-align:center;
    padding:80px 20px;
    background:linear-gradient(135deg,#111,#1c1c1c);
}

.hero h1{
    font-size:48px;
    margin-bottom:10px;
}

.section{
    padding:60px 20px;
    text-align:center;
}

.section.dark{
    background:#111;
}

.preview-container img{
    max-width:600px;
    width:100%;
    border-radius:10px;
    box-shadow:0 20px 50px rgba(0,0,0,0.5);
}

.color-switcher button{
    margin:10px;
    padding:10px 20px;
    background:#d4af37;
    border:none;
    cursor:pointer;
    font-weight:600;
}

.btn{
    display:inline-block;
    padding:15px 30px;
    background:#d4af37;
    color:black;
    text-decoration:none;
    font-weight:700;
    border-radius:5px;
}

footer{
    text-align:center;
    padding:20px;
    background:#111;
    color:#aaa;
}