:root {
    --bg: #121418;
    --surface: rgba(255, 255, 255, 0.035);
    --border: rgba(255, 255, 255, 0.10);
    --heading: #f0f0f2;
    --text: #c4c4ca;
    --muted: #8e8e96;
    --accent: #22c55e;
    --accent-hover: #4ade80;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f5f6f8;
        --surface: #ffffff;
        --border: rgba(0, 0, 0, 0.10);
        --heading: #1a1a2e;
        --text: #3a3a48;
        --muted: #6a6a76;
        --accent: #16a34a;
        --accent-hover: #15803d;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px 16px;
    font-family: Inter, system-ui, -apple-system, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

.card {
    width: min(100%, 620px);
    padding: 36px 32px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
}

.badge {
    margin: 0 0 8px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.8rem;
    color: var(--accent);
}

h1 {
    margin: 0 0 12px;
    font-size: 2rem;
    color: var(--heading);
}

.lead {
    font-size: 1.1rem;
    color: var(--heading);
}

.links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.btn {
    padding: 10px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--heading);
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s;
}

.btn:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.btn.primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #0b0d10;
    font-weight: 600;
}

.btn.primary:hover {
    background: var(--accent-hover);
}