.chat-sidebar-container{position:relative;z-index:100}.chat-toggle-btn{position:fixed;bottom:5.5rem;right:2rem;width:3.5rem;height:3.5rem;border-radius:50%;background:var(--text-primary);color:var(--bg-primary);border:none;box-shadow:0 4px 12px #0003;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;z-index:99}.chat-toggle-btn:hover{transform:scale(1.05);background:var(--text-secondary)}.chat-toggle-btn svg{width:24px;height:24px}.chat-badge{position:absolute;top:-5px;right:-5px;background:#ef4444;color:#fff;font-size:.75rem;font-weight:700;min-width:20px;height:20px;border-radius:10px;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-primary)}.chat-sidebar{position:fixed;top:0;bottom:0;right:-400px;width:350px;max-width:100vw;height:100dvh;background:var(--bg-primary);border-left:1px solid var(--border-color);box-shadow:-4px 0 24px #0000001a;display:flex;flex-direction:column;transition:right .3s cubic-bezier(.16,1,.3,1);z-index:101}.chat-sidebar.open{right:0}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}.chat-header h3{margin:0;font-size:1.1rem;color:var(--text-primary)}.close-chat-btn{background:none;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer;padding:0;line-height:1}.close-chat-btn:hover{color:var(--text-primary)}.chat-messages{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem;background:var(--bg-primary)}.chat-empty{text-align:center;color:var(--text-tertiary);font-size:.9rem;margin-top:2rem}.chat-bubble{max-width:85%;display:flex;flex-direction:column;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-bubble-flash .chat-content{outline:2px solid var(--text-primary);outline-offset:2px;transition:outline-color .3s ease}.chat-bubble.me{align-self:flex-end}.chat-bubble.others{align-self:flex-start}.chat-author{font-size:.75rem;color:var(--text-tertiary);margin-bottom:.25rem;margin-left:.5rem}.chat-bubble.me .chat-author{text-align:right;margin-right:.5rem;margin-left:0}.chat-content{position:relative;padding:.75rem 1rem;border-radius:18px;font-size:.95rem;line-height:1.4;word-break:break-word}.chat-bubble.me .chat-content{background:var(--text-primary);color:var(--bg-primary);border-bottom-right-radius:4px}.chat-bubble.others .chat-content{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:4px}.chat-quote{display:block;width:100%;text-align:left;margin:0 0 .45rem;padding:.4rem .55rem;border:none;border-left:3px solid currentColor;border-radius:6px;background:#00000014;color:inherit;cursor:pointer;opacity:.85}.chat-bubble.me .chat-quote{background:#ffffff24}.chat-quote-author{display:block;font-size:.7rem;font-weight:700;margin-bottom:.15rem}.chat-quote-text{display:block;font-size:.78rem;line-height:1.3;opacity:.9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-reply-btn{align-self:flex-end;margin-top:.2rem;padding:.15rem .45rem;border:none;background:transparent;color:var(--text-tertiary);font-size:.7rem;font-weight:600;cursor:pointer;opacity:.75}.chat-bubble.me .chat-reply-btn{color:var(--text-tertiary)}.chat-reply-btn:hover{opacity:1;color:var(--text-primary)}.chat-time{font-size:.65rem;color:var(--text-tertiary);margin-top:.25rem;align-self:flex-end}.chat-bubble.me .chat-time{color:var(--bg-primary);opacity:.6}.chat-reply-compose{display:flex;align-items:flex-start;gap:.5rem;margin-bottom:.6rem;padding:.55rem .7rem;border-radius:12px;border-left:3px solid var(--text-primary);background:var(--bg-primary);border:1px solid var(--border-color);border-left-width:3px}.chat-reply-compose[hidden]{display:none!important}.chat-reply-compose-body{flex:1;min-width:0}.chat-reply-compose-label{font-size:.72rem;font-weight:700;color:var(--text-primary);margin-bottom:.15rem}.chat-reply-compose-preview{font-size:.8rem;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-reply-compose-cancel{border:none;background:transparent;color:var(--text-tertiary);font-size:1.25rem;line-height:1;cursor:pointer;padding:0 .2rem}.chat-reply-compose-cancel:hover{color:var(--text-primary)}.chat-action-bar{padding:.5rem 1rem;border-top:1px solid var(--border-color)}.chat-delete-btn{width:100%;padding:8px 12px;border-radius:10px;background:transparent;border:1px solid rgba(239,68,68,.3);color:#f87171;font-size:12px;font-weight:600;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center;gap:6px}.chat-delete-btn:hover{background:#ef444414;border-color:#ef444480}.chat-delete-btn:active{transform:scale(.98)}.chat-input-area{padding:1rem;border-top:1px solid var(--border-color);background:var(--bg-secondary)}#chat-form{display:flex;gap:.5rem}#chat-input{flex:1;padding:.75rem 1rem;border-radius:20px;border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);font-size:16px}#chat-input:focus{outline:none;border-color:var(--text-secondary)}#chat-send-btn{width:40px;height:40px;border-radius:50%;background:var(--text-primary);color:var(--bg-primary);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s}#chat-send-btn:hover{transform:scale(1.1)}#chat-send-btn svg{width:18px;height:18px}#chat-send-btn:disabled{background:var(--text-tertiary);color:var(--bg-secondary);cursor:not-allowed}.chat-modal-overlay{position:fixed;inset:0;background:#00000080;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;pointer-events:none;transition:opacity .2s ease;padding:1rem}.chat-modal-overlay.active{opacity:1;pointer-events:auto}.chat-modal{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:20px;padding:2rem 1.75rem 1.75rem;max-width:400px;width:100%;text-align:center;box-shadow:0 24px 64px #0000004d;transform:scale(.9) translateY(10px);transition:transform .25s cubic-bezier(.16,1,.3,1)}.chat-modal-overlay.active .chat-modal{transform:scale(1) translateY(0)}.chat-modal-icon{width:64px;height:64px;border-radius:50%;background:#ef44441a;color:#f87171;display:flex;align-items:center;justify-content:center;margin:0 auto 1.25rem}.chat-modal-icon-info{background:#3b82f61a;color:#60a5fa}.chat-modal-title{margin:0 0 .5rem;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.chat-modal-message{margin:0 0 1.5rem;font-size:.9rem;color:var(--text-secondary);line-height:1.5}.chat-modal-actions{display:flex;gap:.75rem}.chat-modal-btn{flex:1;padding:.7rem 1rem;border-radius:12px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .15s;border:none}.chat-modal-btn:active{transform:scale(.97)}.chat-modal-cancel{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.chat-modal-cancel:hover{background:var(--bg-tertiary)}.chat-modal-confirm{background:#ef4444;color:#fff}.chat-modal-confirm:hover{background:#dc2626}@media(max-width:640px){.chat-toggle-btn{bottom:4.5rem;right:1rem;width:3rem;height:3rem}.chat-sidebar{width:100vw}.chat-modal{padding:1.5rem 1.25rem 1.25rem;border-radius:16px}.chat-modal-icon{width:56px;height:56px}.chat-modal-title{font-size:1.1rem}.chat-modal-actions{flex-direction:column-reverse}.chat-modal-btn{width:100%}}