:root {
    --bg: #0f172a;
    --accent: #38bdf8;
    --text: #f8fafc;
}

html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: var(--bg);
    width: 100%;
    height: 100%;
    font-family: Segoe UI, sans-serif;
}

#particleCanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
}

.overlay {
    position: fixed;
    top: 20px;
    left: 20px;

    padding: 16px;

    background: rgba(15,23,42,0.75);
    backdrop-filter: blur(8px);

    border-radius: 12px;
    border: 1px solid rgba(56,189,248,0.3);

    z-index: 10;
}

.overlay h1 {
    margin: 0 0 8px 0;
    color: var(--accent);
    font-size: 1.2rem;
}

.overlay p {
    margin: 0 0 10px 0;
    color: var(--text);
    font-size: 0.9rem;
}

.overlay a {
    color: var(--accent);
    text-decoration: none;
}

.overlay a:hover {
    text-decoration: underline;
}