:root {
    --background: #ffffff;
    --text: #1d1d1f;
    --muted: #5f6368;
    --accent: #0c447c;
    --border: #e3e3e3;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #121212;
        --text: #ececec;
        --muted: #a8a8a8;
        --accent: #85b7eb;
        --border: #2c2c2c;
    }
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 16px;
}

header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

header img {
    width: 64px;
    height: 64px;
}

h1 {
    margin: 0;
    font-size: 2rem;
}

h2 {
    margin-top: 2rem;
    font-size: 1.25rem;
}

a {
    color: var(--accent);
}

.subtitle,
footer {
    color: var(--muted);
}

footer {
    margin-top: 48px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}