.tc-chat{border:1px solid #ddd; max-width:720px; margin:10px auto; border-radius:8px; overflow:hidden; font-family:system-ui, -apple-system, Arial, sans-serif;}
.tc-header{display:flex; align-items:center; justify-content:space-between; padding:10px 12px; background:#fafafa; border-bottom:1px solid #eee;}
.tc-title{font-weight:600;}
.tc-bot-name{font-weight:400; opacity:.85; margin-left:6px; font-size:90%;}
.tc-mode-badge{font-size:12px; padding:2px 8px; border:1px solid #999; border-radius:999px; display:inline-block;}
.tc-messages{height:420px; overflow:auto; padding:12px; background:white;}
.tc-msg{margin-bottom:10px; max-width:85%;}
.tc-msg.user{margin-left:auto; text-align:right;}
.tc-bubble{display:inline-block; padding:8px 10px; border-radius:12px;}
.tc-msg.user .tc-bubble{background:#e6f0ff;}
.tc-msg.bot .tc-bubble{background:#f5f5f5;}
.tc-input{display:flex; gap:8px; padding:10px; border-top:1px solid #eee;}
.tc-input input{flex:1; padding:8px 10px; border:1px solid #ddd; border-radius:8px;}
.tc-input button{padding:8px 12px; border:1px solid #ddd; border-radius:8px; background:#fff; cursor:pointer;}
.tc-cardgrid{display:flex; gap:8px; flex-wrap:wrap; margin:8px 0;}
.tc-card{border:1px dashed #bbb; padding:8px; border-radius:6px; font-size:12px;}
.tc-card img{max-height:96px; width:auto;}
.tc-upsell{padding:12px; border-top:1px dashed #ddd; background:#fffaf0;}
.tc-cta{display:inline-block; margin-top:6px; padding:6px 10px; border:1px solid #444; border-radius:8px; cursor:pointer; text-decoration:none;}
.tc-upsell .tc-offer{margin:6px 0;}