body {
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: #e5e7eb;
    padding: 40px;
}

h1 {
    color: #38bdf8;
}

button {
    padding: 10px 15px;
    border: none;
    background: #22c55e;
    color: #000;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #16a34a;
}