:root{--bg: #0f1115;--card: #171a21;--border: #262b36;--text: #e6e8ee;--muted: #8b93a3;--accent: #6ea8fe;color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.shell{min-height:100dvh;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) 16px}.card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px 24px;text-align:center}h1{margin:0 0 4px;font-size:2rem;letter-spacing:-.02em}.tagline{margin:0 0 20px;color:var(--muted)}.stage{margin:0 0 16px;font-size:.85rem;color:var(--accent)}.probe{margin:0;font-size:.85rem;color:var(--muted)}