:root{--bg:#0f172a;--bg-card:#1e293b;--fg:#e2e8f0;--fg-muted:#94a3b8;--accent:#fbbf24;--border:#334155}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body,html,main{min-height:100vh}main{display:flex;align-items:center;justify-content:center;padding:2rem}.container{max-width:600px;width:100%}h1{font-size:2.5rem;margin-bottom:.5rem}.subtitle{color:var(--fg-muted);font-size:1.25rem}.card,.subtitle{margin-bottom:2rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem}.card h2{font-size:1.125rem;margin-bottom:1rem;color:var(--accent)}dl{display:grid;grid-template-columns:auto 1fr;grid-gap:.5rem 1rem;gap:.5rem 1rem}dt{color:var(--fg-muted);font-size:.875rem}dd code{font-family:ui-monospace,Cascadia Code,Source Code Pro,monospace;font-size:.9rem;color:var(--accent)}.footer{color:var(--fg-muted);font-size:.875rem;text-align:center}