:root{--bg:#0f1720;--panel:#16212e;--accent:#3ba7ff;--text:#e7eef6;--muted:#8ea3b8;--user:#2b6cb0;--bot:#243447}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent);text-decoration:none}.container{max-width:960px;margin:0 auto;padding:24px}.btn{display:inline-block;background:var(--accent);color:#00121f;border:none;border-radius:10px;padding:12px 18px;font-weight:600;cursor:pointer}.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.card{background:var(--panel);border:1px solid #22303f;border-radius:14px;padding:20px;margin-bottom:16px}.disclaimer{color:var(--muted);font-size:13px;border-top:1px solid #22303f;padding-top:10px;margin-top:14px}.chat{display:flex;flex-direction:column;grid-gap:10px;gap:10px}.msg{padding:10px 14px;border-radius:12px;max-width:80%;line-height:1.5}.msg.user{background:var(--user);align-self:flex-end}.msg.bot{background:var(--bot);align-self:flex-start}.composer{display:flex;grid-gap:8px;gap:8px;margin-top:14px}.composer input{flex:1 1;padding:12px;border-radius:10px;border:1px solid #22303f;background:#0d151e;color:var(--text)}.split{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px}@media (max-width:760px){.split{grid-template-columns:1fr}}.option{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #22303f}.total{font-size:22px;font-weight:700;margin-top:12px}