:root{color-scheme:light;font-family:Segoe UI,sans-serif;background:linear-gradient(180deg,#f5f7fb,#edf2ff);color:#1c2434}body{margin:0;min-width:320px}.app-shell{max-width:960px;margin:0 auto;padding:48px 24px 80px}.hero{padding:24px 0 40px}.eyebrow{letter-spacing:.16em;text-transform:uppercase;font-size:.78rem;color:#496184}h1{font-size:clamp(2rem,5vw,4rem);line-height:1;margin:12px 0 16px}.body{max-width:60ch;color:#40506a;font-size:1.05rem}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.auth-cards{margin-bottom:16px}.card{background:#ffffffd1;border:1px solid rgba(73,97,132,.14);border-radius:18px;padding:20px;box-shadow:0 10px 30px #41587a14}.card h2{margin-top:0}.stack{display:grid;gap:10px}label{display:grid;gap:6px;font-size:.92rem;color:#334864}input,select,button{font:inherit}input,select{border:1px solid rgba(73,97,132,.32);border-radius:10px;padding:8px 10px;background:#fff}button{border:none;border-radius:10px;padding:10px 12px;background:#294d8d;color:#fff;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}pre{margin:0;padding:10px;border-radius:10px;background:#0f1c30;color:#d8e7ff;font-size:.8rem;white-space:pre-wrap;word-break:break-word;max-height:180px;overflow:auto}.error{margin:0;color:#b82138;font-weight:600}.session-pill{margin:0;background:#2553971f;color:#1e467f;border:1px solid rgba(37,83,151,.22);border-radius:999px;padding:6px 10px;font-weight:600;font-size:.88rem}.session-meta{margin:0;color:#40506a;font-size:.92rem}