/* Styles: text bubble + image block */
.aitunnel-chat-wrapper{--aitunnel-chat-height:600px;display:flex;flex-direction:column;gap:12px;max-width:100%;}
.aitunnel-chat-window{height:var(--aitunnel-chat-height);overflow:auto;overflow-x:hidden;background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:12px;padding:12px;}
.aitunnel-msg{display:block;margin:8px 0;}
.aitunnel-msg.user .bubble{display:inline-block;max-width:85%;padding:10px 12px;border-radius:12px;background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.25);}
.aitunnel-msg.assistant .bubble.text{display:block;width:100%;max-width:100%;margin:6px 0;background:rgba(0,0,0,.03);border:1px solid rgba(0,0,0,.06);border-radius:12px;padding:10px 12px;}
.aitunnel-msg.assistant .bubble.images{background:transparent;border:none;box-shadow:none;padding:0;margin:0;}
.aitunnel-msg.assistant .imgwrap{display:block;width:100%;margin:6px 0;border-radius:10px;overflow:hidden;border:1px solid rgba(0,0,0,.08);}
.aitunnel-msg.assistant img{display:block;height:auto;max-width:100%;}
/* Desktop-only limits */
@media (min-width:1024px){
  .aitunnel-msg.assistant img{max-width:var(--aitunnel-img-max-w,100%);max-height:var(--aitunnel-img-max-h,none);}
}
.aitunnel-chat-form{display:flex;flex-direction:column;gap:8px;}
#aitunnel-chat-input{box-sizing:border-box;overflow:auto;padding:10px 12px;border-radius:10px;border:1px solid rgba(0,0,0,.15);resize:none;min-height:24px;}
.aitunnel-actions{display:flex;gap:8px;}
.btn-primary{padding:10px 16px;border-radius:10px;border:none;cursor:pointer;background:#3b82f6;color:#fff;}
#aitunnel-chat-send[disabled]{opacity:.6;cursor:not-allowed;}