:root{--primary:#0284c7;--bg:#0f172a;--text:#f8fafc;--border:#334155;--card:#1e293b;--self-msg:#0369a1;--other-msg:#334155;--danger:#ef4444}[data-theme=light]{--bg:#f3f4f6;--text:#171717;--border:#d1d5db;--card:#fff;--self-msg:#0284c7;--other-msg:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);height:100dvh;font-family:Inter,system-ui,-apple-system,sans-serif;transition:background .3s,color .3s;overflow:hidden}.app-container{background:var(--bg);flex-direction:column;width:100%;height:100dvh;display:flex;position:relative}.content-area{flex-direction:column;flex:1;height:100%;display:flex;overflow:hidden}.header{background:var(--card);border-bottom:1px solid var(--border);z-index:100;height:64px;padding:0 1rem;padding-top:env(safe-area-inset-top);box-sizing:content-box;align-items:center;display:flex}.header-title{text-align:center;flex:1;font-size:1rem;font-weight:600}.icon-btn{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.2rem;transition:background .2s;display:flex}.icon-btn:hover{background:#8080801a}.chat-list{flex:1;overflow-y:auto}.chat-tabs{background:var(--card);border-bottom:1px solid var(--border);display:flex}.chat-tab{text-align:center;color:var(--text);cursor:pointer;opacity:.5;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:10px;font-size:.9rem;font-weight:600;transition:all .2s}.chat-tab.active{opacity:1;border-bottom-color:var(--primary);color:var(--primary)}.tab-badge{background:var(--primary);color:#fff;vertical-align:middle;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:6px;padding:0 5px;font-size:.65rem;font-weight:700;display:inline-flex}.unread-badge{background:var(--primary);color:#fff;border-radius:10px;flex-shrink:0;justify-content:center;align-self:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:.7rem;font-weight:700;display:flex}.chat-list-item{border-bottom:.5px solid var(--border);cursor:pointer;align-items:center;padding:.75rem 1rem;transition:background .2s;display:flex}.chat-list-item:hover{background:#8080800d}.chat-avatar{background:var(--primary);color:#fff;object-fit:cover;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;margin-right:1rem;font-weight:700;display:flex;overflow:hidden}.chat-info{flex:1;min-width:0}.chat-name{margin-bottom:.1rem;font-size:1rem;font-weight:600}.chat-last-msg{opacity:.6;white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;overflow:hidden}.chat-view{flex-direction:column;flex:1;display:flex;overflow:hidden}.messages-list{flex-direction:column;flex:1;gap:.8rem;padding:1rem;display:flex;overflow-y:auto}.message-wrapper{gap:6px;width:100%;display:flex;position:relative}.message-wrapper.self{justify-content:flex-end}.message-wrapper.other{justify-content:flex-start}.msg-avatar{background:var(--primary);color:#fff;cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;width:32px;height:32px;margin-bottom:4px;font-size:.7rem;font-weight:700;display:flex;overflow:hidden}.msg-avatar img{object-fit:cover;width:100%;height:100%}.msg-avatar:active{opacity:.7}.msg-body{flex-direction:column;max-width:80%;display:flex}.message-item{-webkit-user-select:none;user-select:none;cursor:pointer;border-radius:18px;width:fit-content;max-width:min(85%,600px);padding:.6rem .8rem;font-size:.95rem;line-height:1.4;transition:transform .1s;position:relative;box-shadow:0 1.5px 3px #0000001a}.message-item:active{transform:scale(.98)}.message-wrapper.self .message-item{background:var(--self-msg);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.message-wrapper.other .message-item{background:var(--other-msg);border-bottom-left-radius:4px;align-self:flex-start}.msg-sender{color:var(--primary);margin-bottom:2px;font-size:.75rem;font-weight:700}.message-wrapper.self .msg-sender{color:#ffffffb3}.reply-quote{border-left:3px solid var(--primary);cursor:pointer;background:#8080801a;border-radius:4px;margin-bottom:6px;padding:4px 8px;font-size:.85rem}.quote-user{color:var(--primary);margin-bottom:2px;font-weight:600}.quote-text{opacity:.7;white-space:nowrap;text-overflow:ellipsis;max-width:200px;overflow:hidden}.message-item.is-image{padding:4px;line-height:0}.message-item.is-image .message-time{color:#fff;background:#00000080;border-radius:10px;padding:1px 6px;font-size:10px;position:absolute;bottom:8px;right:12px}.pinned-calls{background:var(--card);border-bottom:1px solid var(--border);flex-direction:column;gap:4px;padding:8px 12px;display:flex}.active-call-pin{background:#22c55e1a;border:1px solid #22c55e33;border-radius:12px;align-items:center;gap:12px;padding:10px 14px;display:flex}.pin-info{color:#22c55e;align-items:center;gap:6px;font-size:14px;font-weight:600;display:flex}.pin-label{flex:1;font-size:13px;font-weight:500}.pin-join{color:#fff;cursor:pointer;background:#22c55e;border:none;border-radius:8px;padding:6px 12px;font-size:13px;font-weight:600}.pin-status{opacity:.6;font-size:12px;font-style:italic}.user-selector-list{flex-direction:column;gap:8px;max-height:300px;margin:10px 0;display:flex;overflow-y:auto}.user-selector-item{cursor:pointer;border:1px solid #0000;border-radius:10px;align-items:center;gap:12px;padding:10px;transition:all .2s;display:flex}.user-selector-item:hover{background:#8080801a}.user-selector-item.selected{border-color:var(--primary);background:#0284c71a}.chat-avatar.small{border-radius:8px;width:32px;height:32px;margin:0;font-size:12px}.msg-ctx-menu{background:var(--card);border:1px solid var(--border);border-radius:12px;gap:2px;margin-top:2px;padding:2px;display:inline-flex;box-shadow:0 4px 12px #00000026}.msg-ctx-menu.self{align-self:flex-end}.msg-ctx-menu.other{align-self:flex-start}.msg-ctx-menu button{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 10px;font-size:16px}.msg-ctx-menu button:hover{background:#8080801a}.msg-ctx-menu button.del{color:#ef4444}.input-prefix{background:var(--card);border-top:1px solid var(--border);border-bottom:.5px solid var(--border);align-items:center;gap:12px;padding:8px 16px;display:flex}.message-content-row{flex-direction:column;display:flex}.message-time{opacity:.6;align-self:flex-end;margin-top:2px;font-size:.65rem}.img-preview{cursor:pointer;object-fit:contain;border-radius:14px;max-width:min(100%,400px);max-height:60vh}.input-area{background:var(--card);border-top:1px solid var(--border);padding:.5rem 1rem;padding-bottom:calc(.5rem + env(safe-area-inset-bottom));align-items:center;gap:.5rem;display:flex}.msg-input{background:var(--bg);color:var(--text);border:none;border-radius:20px;outline:none;flex:1;padding:.6rem 1rem;font-size:.95rem}.call-screen{z-index:1000;background:#000;flex-direction:column;width:100vw;height:100dvh;display:flex;position:fixed;inset:0}.call-top-actions{z-index:1100;gap:8px;display:flex;position:absolute;top:12px;left:50%;transform:translate(-50%)}.call-grid{background:#000;flex:1;align-content:center;gap:8px;width:100%;max-width:1400px;margin:0 auto;padding:12px;display:grid;overflow-y:auto}.call-grid.count-1{grid-template-columns:1fr}.call-grid.count-2{grid-template-rows:1fr 1fr;grid-template-columns:1fr}.call-grid.count-3,.call-grid.count-4{grid-template-rows:1fr 1fr;grid-template-columns:1fr 1fr}@media (width>=800px){.call-grid.count-2{grid-template-rows:1fr;grid-template-columns:1fr 1fr;gap:16px}}.video-card{background:#080808;border:1px solid #111;border-radius:20px;justify-content:center;align-items:center;width:100%;height:100%;min-height:250px;display:flex;position:relative;overflow:hidden}.video-feed{object-fit:contain;width:100%;height:100%}.video-feed.fill{width:100%;height:100%}.video-feed.mirrored{transform:scaleX(-1)}.video-label{pointer-events:none;color:#fff;z-index:10;background:#0009;border-radius:8px;padding:4px 10px;font-size:12px;position:absolute;bottom:12px;left:12px}.unmute-overlay{color:#fff;cursor:pointer;z-index:5;background:#0006;border:none;justify-content:center;align-items:center;font-family:inherit;font-size:14px;font-weight:600;transition:background .2s;display:flex;position:absolute;inset:0}.unmute-overlay:hover{background:#0003}.conn-status-badge{text-transform:uppercase;z-index:15;color:#fff;background:#0009;border-radius:6px;padding:4px 10px;font-size:10px;font-weight:800;position:absolute;top:12px;right:12px}.conn-status-badge.connected{color:#fff;background:#22c55e}.conn-status-badge.checking{color:#fff;background:#f59e0b}.conn-status-badge.failed{color:#fff;background:#ef4444}.conn-status-badge.disconnected{color:#fff;background:#64748b}.pip-webcam{bottom:calc(12px + env(safe-area-inset-bottom));right:calc(12px + env(safe-area-inset-right));aspect-ratio:4/3;object-fit:cover;z-index:10;background:#000;border:2px solid #ffffff4d;border-radius:10px;width:25%;max-width:160px;position:absolute}.fullscreen-btn{color:#fff;cursor:pointer;z-index:20;background:#00000080;border:none;border-radius:8px;padding:4px 8px;font-size:16px;transition:background .2s;position:absolute;top:12px;left:12px}.fullscreen-btn:hover{background:#000c}.fullscreen-video{cursor:pointer;z-index:50;background:#000;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.fullscreen-video video{object-fit:contain;width:100%;height:100%}.fullscreen-video .video-label{color:#fff;z-index:10;background:#0009;border-radius:8px;padding:6px 14px;font-size:14px;position:absolute;bottom:20px;left:20px}.fullscreen-exit-btn{color:#fff;cursor:pointer;z-index:20;background:#00000080;border:none;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex;position:absolute;top:20px;right:20px}.fullscreen-exit-btn:hover{background:#000c}.call-controls{height:100px;padding-bottom:env(safe-area-inset-bottom);background:#000000e6;justify-content:center;align-items:center;gap:1.5rem;display:flex}.call-btn{cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;font-size:1.5rem;transition:all .2s;display:flex}.call-btn:not(.hangup){color:#fff;background:#222}.call-btn:not(.hangup):hover{background:#333}.call-btn.off{background:var(--danger)}.call-btn.hangup{background:var(--danger);color:#fff;transform:rotate(135deg)}.call-btn.accept{color:#fff;background:#22c55e}.modal{z-index:2000;background:#000000b3;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.modal-content{background:var(--card);color:var(--text);border-radius:20px;flex-direction:column;gap:1rem;width:100%;max-width:320px;padding:1.5rem;display:flex;box-shadow:0 10px 40px #0000004d}.img-fullscreen-overlay{z-index:3000;background:#000000e6;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.img-fullscreen{border-radius:12px;max-width:95%;max-height:85%}.center-container{flex-direction:column;justify-content:center;align-items:center;gap:1rem;min-height:100%;padding:2rem;display:flex}.form-card{flex-direction:column;gap:.75rem;width:100%;max-width:300px;display:flex}.input{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:.75rem;font-size:1rem}.btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:.75rem;font-weight:600;display:flex}