#cba-chat-widget { position: fixed; right: 18px; bottom: 18px; z-index: 99999; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial; }
.cba-chat-button { width: 54px; height: 54px; border-radius: 999px; display:flex; align-items:center; justify-content:center; cursor:pointer; box-shadow: 0 10px 30px rgba(0,0,0,.18); background: #111; color:#fff; user-select:none; }
.cba-chat-panel { width: 340px; height: 520px; margin-bottom: 10px; border-radius: 14px; overflow:hidden; box-shadow: 0 10px 30px rgba(0,0,0,.18); background:#fff; display:flex; flex-direction:column; }
.cba-hidden { display:none; }
.cba-chat-header { background:#111; color:#fff; padding:10px 12px; display:flex; justify-content:space-between; align-items:center; }
.cba-close { background:transparent; border:0; color:#fff; font-size:16px; cursor:pointer; }
.cba-chat-messages { flex:1; padding:12px; overflow:auto; background:#fafafa; }
.cba-msg { max-width: 85%; padding:10px 10px; margin: 8px 0; border-radius: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.cba-user { margin-left:auto; background:#111; color:#fff; border-bottom-right-radius: 4px; }
.cba-assistant { margin-right:auto; background:#fff; border:1px solid #e6e6e6; border-bottom-left-radius: 4px; }
.cba-chat-input { display:flex; gap:8px; padding:10px; border-top:1px solid #eee; background:#fff; }
.cba-chat-input input { flex:1; min-width:0; padding:10px; border-radius:10px; border:1px solid #ddd; }
.cba-chat-input button { padding:10px 12px; border-radius:10px; border:0; background:#111; color:#fff; cursor:pointer; }
.cba-chat-footnote { font-size:12px; color:#666; padding: 0 10px 10px; }
.cba-cta { padding: 8px 10px; border-top: 1px solid #eee; background:#fff; display:flex; gap:8px; }
.cba-cta a { flex:1; text-align:center; text-decoration:none; padding:10px 12px; border-radius:10px; background:#f2f2f2; color:#111; font-size:13px; }

@media (max-width: 420px) {
  #cba-chat-widget { right: 10px; bottom: 10px; left: 10px; }
  .cba-chat-panel { width: 100%; height: min(520px, calc(100vh - 86px)); }
  .cba-chat-button { margin-left: auto; }
}