body {
    background: #f8fafc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 480px;
    margin: 120px auto;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    border-radius: 12px;
    padding: 48px 32px;
    text-align: center;
}
h1 {
    color: #222;
    margin-bottom: 20px;
    font-size: 2.2em;
    letter-spacing: 1px;
}
p {
    color: #444;
    font-size: 1.15em;
}
.hidden-link {
    position: fixed;
    bottom: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    background: white;
    border: none;
    color: white;
    opacity: 1;
    z-index: 1000;
    cursor: pointer;
    outline: none;
    text-decoration: none;
    font-size: 0;
}
.hidden-link:focus {
    outline: 2px solid #eee;
}