.chat-fab{position:fixed;bottom:18px;right:18px;width:54px;height:54px;border-radius:50%;border:1px solid var(--border);background:var(--primary);color:#fff;font-size:1.4rem;line-height:1;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.18);z-index:901;transition:transform .2s,bottom .2s}.chat-fab:hover{transform:scale(1.06)}.chat-fab.chat-fab-open .chat-fab-icon{opacity:.75}.chat-fab.chat-raised{bottom:84px}.chat-panel.chat-raised{bottom:148px}.chat-badge{position:absolute;top:-2px;right:-2px;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--error);color:#fff;font-size:.72rem;font-weight:700;line-height:20px;box-shadow:0 0 0 2px var(--bg-card)}.chat-panel{position:fixed;bottom:82px;right:18px;width:340px;max-width:calc(100vw - 32px);height:460px;max-height:calc(100vh - 120px);display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;box-shadow:0 12px 34px rgba(0,0,0,.18);z-index:902;overflow:hidden;transition:bottom .2s}.chat-panel[hidden]{display:none}.chat-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-bottom:1px solid var(--border);background:var(--primary);color:#fff}.chat-title{font-weight:700;font-size:.98rem}.chat-sub{font-size:.76rem;opacity:.85;margin-top:2px}.chat-close{background:0 0;border:none;color:#fff;font-size:1.5rem;line-height:1;cursor:pointer;padding:0 4px;opacity:.85}.chat-close:hover{opacity:1}.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}.chat-empty{color:var(--text-muted);font-size:.86rem;line-height:1.5;text-align:center;margin:auto 0;padding:0 8px}.chat-empty[hidden]{display:none}.chat-msg{display:flex;flex-direction:column;max-width:84%}.chat-msg-user{align-self:flex-end;align-items:flex-end}.chat-msg-admin{align-self:flex-start;align-items:flex-start}.chat-bubble{padding:8px 12px;border-radius:14px;font-size:.88rem;line-height:1.45;white-space:pre-wrap;word-break:break-word}.chat-msg-user .chat-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.chat-msg-admin .chat-bubble{background:var(--bg-dark);color:var(--text);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-meta{font-size:.68rem;color:var(--text-muted);margin-top:3px;padding:0 4px}.chat-foot{display:flex;align-items:flex-end;gap:8px;padding:10px;border-top:1px solid var(--border)}.chat-input{flex:1;resize:none;border:1px solid var(--border);border-radius:10px;padding:9px 11px;font:inherit;font-size:.88rem;line-height:1.4;background:var(--bg-card);color:var(--text);max-height:96px;overflow-y:auto}.chat-input:focus{outline:0;border-color:var(--primary)}.chat-send{flex:0 0 auto;width:38px;height:38px;border:none;border-radius:50%;background:var(--primary);color:#fff;font-size:.95rem;cursor:pointer}.chat-send:hover{filter:brightness(1.08)}.chat-status{margin:0;padding:0 12px 8px;font-size:.76rem;color:var(--text-muted);min-height:1em}@media (max-width:420px){.chat-panel{right:12px;left:12px;width:auto;height:62vh}.chat-fab{bottom:14px;right:14px}}