:root {
    color-scheme: light dark;
    --fg: #111;
    --bg: #fff;
    --muted: #666;
}

@media (prefers-color-scheme: dark) {
    :root {
        --fg: #f5f5f5;
        --bg: #0a0a0a;
        --muted: #888;
    }
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--fg);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 1.25rem;
    line-height: 1.5;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    max-width: 32rem;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem;
}

.tagline {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: var(--muted);
    margin: 0 0 2.5rem;
}

.launch {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border: 2px solid var(--fg);
    color: var(--fg);
    text-decoration: none;
    font-weight: 600;
    border-radius: 999px;
    transition: transform 0.15s ease;
}

.launch:hover {
    transform: translateY(-1px);
}

.launch:active {
    transform: translateY(0);
}

footer {
    color: var(--muted);
    font-size: 0.875rem;
    text-align: center;
}

footer a {
    color: var(--muted);
}