body {
    font-family: "Inter", system-ui, sans-serif;
    background: linear-gradient(180deg, #f9fafb 0%, #eef1f5 100%);
    color: #222;
    margin: 0;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 90vh;
}
h1 {
    font-size: 2.2rem;
    color: #1a1a1a;
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid #ddd;
    width: 100%;
    max-width: 800px;
}
h1 a {
    color: #0077cc;
    text-decoration: none;
    transition: color 0.2s;
}
h1 a:hover {
    color: #005fa3;
    text-decoration: underline;
}
#content {
    padding: 30px;
    width: 100%;
    max-width: 800px;
    font-size: 1rem;
    line-height: 1.6;
}
@media (max-width: 600px) {
    body {
        padding: 20px;
    }
    h1 {
        font-size: 1.6rem;
    }
    #content {
        padding: 20px;
    }
}