#nl-chat-root { font-family: 'Tahoma','Vazir','IRANSans',sans-serif; position: fixed; bottom: 18px; left: 18px; z-index: 99999; }
#nl-floating-btn { background:#ff6b6b; color:#fff; padding:12px 16px; border-radius:24px; cursor:pointer; box-shadow:0 6px 18px rgba(0,0,0,0.18); }
#nl-chat-box { width:360px; max-width:90vw; background:#fff; border-radius:10px; box-shadow:0 10px 30px rgba(0,0,0,0.2); overflow:hidden; direction:rtl; margin-top:12px; }
#nl-chat-box.nl-hidden{ display:none; }
#nl-chat-box .nl-header{ background:#ff6b6b; color:#fff; padding:12px 16px; font-weight:700; }
#nl-messages{ max-height:320px; overflow:auto; padding:12px; background:linear-gradient(180deg,#fff,#fbfbfb); }
.nl-message{ margin-bottom:10px; }
.nl-msg-user .nl-msg-body{ background:#f1f1f1; padding:8px 10px; border-radius:8px; display:inline-block; max-width:80%; }
.nl-msg-admin .nl-msg-body{ background:#e9f7ff; padding:8px 10px; border-radius:8px; display:inline-block; max-width:80%; }
.nl-msg-meta{ font-size:11px; color:#666; margin-bottom:4px; }
.nl-form{ padding:10px; border-top:1px solid #eee; }
#nl-username{ width:100%; padding:8px; margin-bottom:6px; box-sizing:border-box; }
#nl-input{ width:100%; min-height:56px; padding:8px; box-sizing:border-box; resize:vertical; }
#nl-send{ background:#ff6b6b; color:#fff; padding:8px 12px; border:none; margin-top:6px; cursor:pointer; border-radius:6px; }