.user-message{background:#1976d2;color:white;padding:12px;border-radius:15px;margin-bottom:10px;margin-left:30px;word-wrap:break-word;max-width:80%;font-size:14px}.contact-message{background:#e8f5e8;color:#2e7d32;padding:10px;border-radius:10px;margin:10px 0;border:1px solid #4caf50;font-size:13px;text-align:center}.contact-message a{color:#1976d2;font-weight:700;text-decoration:none}.contact-message a:hover{text-decoration:underline}.calculator-suggestion{background:#fff3e0;border:1px solid #ffb74d;border-radius:10px;padding:10px;margin:8px 0;font-size:13px}.calculator-suggestion strong{color:#e65100}