:root{--bg: #0f172a;--bg2: #1e293b;--panel: #ffffff;--panel2: #f1f5f9;--text: #0f172a;--text-dim: #64748b;--accent: #4f46e5;--accent-soft: #eef2ff;--danger: #dc2626;--radius: 14px;font-family:Vazirmatn,Segoe UI,Tahoma,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg)}.splash,.login-page{height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#312e81);color:#fff}.logo{font-size:2.2rem;font-weight:800;letter-spacing:1px}.logo.small{font-size:1.6rem;color:var(--accent)}.login-card{background:#fff;color:var(--text);border-radius:20px;padding:2.5rem 2.2rem;width:min(92vw,380px);text-align:center;box-shadow:0 24px 60px #0006}.login-logo{font-size:2rem;font-weight:800;color:var(--accent)}.login-sub{color:var(--text-dim);margin-top:.3rem}.login-text{margin:1.2rem 0 1.6rem;color:var(--text-dim)}.btn{border:1px solid #e2e8f0;background:#fff;color:var(--text);border-radius:10px;padding:.55rem 1.1rem;font:inherit;cursor:pointer}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:disabled{opacity:.55;cursor:default}.btn.danger{color:var(--danger);border-color:#fecaca}.btn.big{width:100%;padding:.8rem;font-size:1.05rem;font-weight:600}.app{display:flex;height:100%;background:var(--panel2)}.sidebar{width:320px;min-width:320px;background:var(--panel);border-inline-start:1px solid #e2e8f0;display:flex;flex-direction:column}.side-head{display:flex;align-items:center;justify-content:space-between;padding:.9rem 1rem .5rem}.brand{font-weight:800;color:var(--accent);font-size:1.15rem}.icon-btn{border:none;background:transparent;cursor:pointer;font-size:1.05rem;color:var(--text-dim);padding:.3rem .45rem;border-radius:8px}.icon-btn:hover{background:var(--panel2);color:var(--accent)}.search{margin:.3rem 1rem .6rem;padding:.55rem .8rem;border:1px solid #e2e8f0;border-radius:10px;font:inherit;background:var(--panel2)}.room-list{flex:1;overflow-y:auto}.empty{padding:2rem 1.2rem;color:var(--text-dim);text-align:center;font-size:.9rem}.room-item{display:flex;gap:.7rem;align-items:center;width:100%;padding:.65rem 1rem;border:none;background:transparent;cursor:pointer;text-align:start;font:inherit}.room-item:hover{background:var(--panel2)}.room-item.active{background:var(--accent-soft)}.avatar{border-radius:50%;object-fit:cover;flex-shrink:0}.avatar.letter{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:700}.room-mid{flex:1;min-width:0}.room-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-preview{color:var(--text-dim);font-size:.82rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.typing-hint{color:var(--accent)}.room-side{display:flex;flex-direction:column;align-items:flex-end;gap:.3rem}.room-time{color:var(--text-dim);font-size:.72rem}.unread{background:var(--accent);color:#fff;border-radius:999px;font-size:.7rem;padding:.05rem .45rem;font-weight:700}.side-foot{padding:.6rem 1rem;border-top:1px solid #e2e8f0}.profile-btn{display:flex;align-items:center;gap:.6rem;width:100%;background:transparent;border:none;cursor:pointer;font:inherit;padding:.3rem;border-radius:10px}.profile-btn:hover{background:var(--panel2)}.profile-name{font-weight:600}.conn-badge{margin-top:.4rem;background:#fef3c7;color:#92400e;border-radius:8px;padding:.35rem .6rem;font-size:.78rem;text-align:center}.chat-pane{flex:1;display:flex;min-width:0}.chat-placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-dim);gap:.6rem}.conversation{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--panel2)}.conv-head{display:flex;align-items:center;gap:.7rem;background:var(--panel);padding:.6rem 1rem;border-bottom:1px solid #e2e8f0}.back{display:none}.conv-title{min-width:0}.conv-name{font-weight:700}.conv-status{font-size:.78rem;color:var(--text-dim)}.timeline{flex:1;overflow-y:auto;padding:1rem 1.2rem;display:flex;flex-direction:column}.load-older{text-align:center;color:var(--text-dim);font-size:.8rem;padding:.4rem}.date-sep{align-self:center;margin:.8rem 0 .4rem;color:var(--text-dim);font-size:.75rem;background:#e2e8f0;border-radius:999px;padding:.15rem .8rem}.msg-row{display:flex;gap:.5rem;margin:.35rem 0;align-items:flex-end}.msg-row.mine{flex-direction:row-reverse}.bubble-wrap{max-width:min(72%,560px);display:flex;flex-direction:column}.msg-row.mine .bubble-wrap{align-items:flex-end}.sender{font-size:.72rem;color:var(--text-dim);margin-bottom:.15rem}.bubble{background:var(--panel);border-radius:var(--radius);padding:.5rem .8rem;box-shadow:0 1px 2px #0000000f;position:relative}.bubble.mine{background:var(--accent);color:#fff}.bubble.mine .sender{color:#c7d2fe}.quoted{border-inline-start:3px solid rgba(255,255,255,.5);padding-inline-start:.5rem;font-size:.78rem;opacity:.85;margin-bottom:.3rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.bubble:not(.mine) .quoted{border-color:var(--accent)}.msg-text{white-space:pre-wrap;word-break:break-word;line-height:1.6}.msg-img{max-width:280px;max-height:320px;border-radius:10px;display:block}.file-chip{display:flex;gap:.6rem;align-items:center;text-decoration:none;color:inherit;background:#0000000d;border-radius:10px;padding:.5rem .7rem}.bubble.mine .file-chip{background:#ffffff26}.file-icon{font-size:1.4rem}.file-meta{display:flex;flex-direction:column;min-width:0}.file-name{font-weight:600;font-size:.85rem}.file-size{font-size:.72rem;opacity:.8}.bubble-meta{display:flex;gap:.4rem;justify-content:flex-end;align-items:center;font-size:.68rem;opacity:.75;margin-top:.15rem}.edited-tag{font-size:.66rem}.status.failed{color:#fca5a5}.reactions{display:flex;gap:.3rem;margin-top:.35rem;flex-wrap:wrap}.reaction{border:1px solid #e2e8f0;background:#fff;border-radius:999px;padding:.05rem .5rem;font-size:.8rem;cursor:pointer;font:inherit}.reaction.mine{border-color:var(--accent);background:var(--accent-soft)}.bubble.mine .reaction{background:#fff3;border-color:transparent;color:#fff}.msg-actions{display:flex;gap:.15rem;position:relative;margin-top:.1rem}.mini-btn{border:none;background:transparent;cursor:pointer;color:var(--text-dim);font-size:.8rem;padding:.1rem .3rem;border-radius:6px}.mini-btn:hover{background:#e2e8f0;color:var(--accent)}.react-menu{position:absolute;bottom:130%;inset-inline-start:0;background:#fff;border:1px solid #e2e8f0;border-radius:12px;display:flex;gap:.2rem;padding:.3rem .4rem;box-shadow:0 8px 24px #00000026;z-index:5}.react-menu button{border:none;background:transparent;font-size:1.05rem;cursor:pointer}.reply-bar,.upload-bar{display:flex;align-items:center;justify-content:space-between;background:var(--panel);border-top:1px solid #e2e8f0;padding:.4rem 1rem;font-size:.82rem;color:var(--text-dim)}.reply-bar.edit{background:var(--accent-soft)}.composer{display:flex;align-items:flex-end;gap:.4rem;background:var(--panel);padding:.6rem .8rem;border-top:1px solid #e2e8f0}.composer textarea{flex:1;resize:none;border:1px solid #e2e8f0;border-radius:12px;padding:.55rem .8rem;font:inherit;max-height:120px;background:var(--panel2)}.composer textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}.send-btn{border:none;background:var(--accent);color:#fff;width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1.05rem}.send-btn:disabled{opacity:.4;cursor:default}.modal-backdrop{position:fixed;inset:0;background:#0f172a80;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:18px;padding:1.4rem 1.5rem;width:min(92vw,420px);color:var(--text)}.modal h3{margin:0 0 .8rem}.modal input{width:100%;padding:.55rem .8rem;border:1px solid #e2e8f0;border-radius:10px;font:inherit;margin-bottom:.5rem}.modal label{font-size:.78rem;color:var(--text-dim);display:block;margin-top:.4rem}.hint{color:var(--text-dim);font-size:.82rem}.error-text{color:var(--danger);font-size:.85rem}.modal-actions{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1rem;flex-wrap:wrap}.profile-row{display:flex;gap:1rem;align-items:flex-start}.avatar-edit{position:relative;border:none;background:transparent;cursor:pointer;padding:0}.avatar-edit span{position:absolute;bottom:-4px;inset-inline-end:-4px;background:var(--accent);color:#fff;border-radius:50%;width:22px;height:22px;font-size:.7rem;display:flex;align-items:center;justify-content:center}.profile-fields{flex:1}@media (max-width: 760px){.sidebar,.chat-pane{width:100%;min-width:0}.sidebar.hidden-mobile,.chat-pane.hidden-mobile{display:none}.back{display:inline-block}.bubble-wrap{max-width:85%}.timeline{padding:.8rem}}