body {
    background: #181818;
    color: #f9f9f9;
    font-family: 'Segoe UI', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

#app {
    max-width: 700px;
    margin: 4em auto 0 auto;
    padding: 2em 2em 3em 2em;
    background: rgba(24,24,24,0.98);
    border-radius: 12px;
    box-shadow: 0 0 24px #000a;
}

a {
    color: #ffcc00;
    text-decoration: underline;
}

.clean-cta {
    display: inline-block;
    margin-top: 2em;
    padding: 0.8em 2.2em;
    font-size: 1.1em;
    background: #101c10;
    color: #0f0;
    font-weight: 600;
    border: 2px solid #0f0;
    border-radius: 8px;
    box-shadow: 0 4px 24px #0f025;
    text-shadow: none;
    cursor: pointer;
    text-decoration: none;
    font-family: monospace;
    letter-spacing: 1px;
    transition: background 0.2s, box-shadow 0.2s, border-color 0.2s;
    outline: none;
}

.clean-cta:hover, .clean-cta:focus {
    background: #182c18;
    border-color: #7fff7f;
    color: #7fff7f;
    box-shadow: 0 6px 32px #0f055;
}