#smti-agent-wrapper{background:#fff;border:1px solid #d7dce1;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.08);font-family:Arial,sans-serif;margin:40px auto;max-width:600px;overflow:hidden;width:100%}#smti-agent-header{background:#23272b;color:#fff;font-size:24px;font-weight:600;padding:20px}#smti-chat-window{background:#f5f7fa;max-height:600px;min-height:500px;overflow-y:auto;padding:25px}.smti-agent-message{border-radius:14px;font-size:15px;line-height:1.5;margin-bottom:18px;max-width:75%;padding:14px 18px}.smti-agent-message.bot{background:#fff;border:1px solid #d8dde3;color:#23272b}.smti-agent-message.user{background:#0073aa;color:#fff;margin-left:auto}#smti-agent-input-area{background:#fff;border-top:1px solid #d7dce1;display:flex;gap:15px;padding:20px}#smti-agent-input{border:1px solid #cfd6dd;border-radius:10px;flex:1;font-size:15px;min-height:60px;padding:12px;resize:vertical}#smti-agent-send{background:#0073aa;border:none;border-radius:10px;color:#fff;cursor:pointer;font-size:16px;font-weight:600;padding:0 28px}#smti-agent-send:hover{background:#005f8d}