#chatbox{position:fixed;top:30px;left:30px;width:280px;background:#000000d9;color:#0ff;border:2px solid #0ff;border-radius:10px;font-family:monospace;box-shadow:0 0 20px #0ff;z-index:2000;opacity:.7}.chat-hidden{display:none}.chat-header{padding:8px;font-weight:700;border-bottom:1px solid #0ff}.chat-body{padding:10px;font-size:14px}#chat-messages{max-height:260px;overflow-y:auto;padding:8px;font-size:14px}.chat-message{padding:4px 8px;margin:2px 0;border-radius:4px}.chat-message.self{color:#0ff}.chat-message.other{color:#f90}.chat-line{margin-bottom:4px;line-height:1.3}.chat-user{color:#0ff;font-weight:700}.chat-msg{color:#fff}.chat-input-row{display:flex;gap:5px;padding:8px}#chat-input{flex:1;background:#000;color:#0ff;border:1px solid #0ff;padding:5px}#chat-send{background:#0ff;color:#000;border:none;padding:5px 10px;cursor:pointer}