:root{--bg-primary: #0a0a18;--bg-secondary: #111125;--bg-tertiary: #181835;--bg-hover: #1e1e40;--bg-active: #252550;--bg-input: #141430;--bg-surface: #13132a;--accent: #00b4d8;--accent-hover: #0096c7;--accent-dim: rgba(0, 180, 216, .15);--text-primary: #e8e8f4;--text-secondary: #9898b8;--text-muted: #5a5a78;--text-inverse: #ffffff;--online: #00e676;--away: #ffb300;--busy: #ff5252;--danger: #ff5252;--success: #00e676;--border: #1e1e3a;--border-light: #2a2a50;--msg-own: #0d3b66;--msg-own-text: #e0ecf8;--msg-other: #1a1a38;--msg-other-text: #e0e0f0;--shadow-sm: 0 1px 3px rgba(0,0,0,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 8px 32px rgba(0,0,0,.5);--sidebar-width: 340px;--header-height: 60px;--radius: 10px;--radius-lg: 16px;--transition: .2s ease;font-family:Segoe 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var(--border);border-radius:8px;color:var(--text-primary);outline:none;transition:border-color var(--transition)}.form-group input:focus{border-color:var(--accent)}.form-group input::placeholder{color:var(--text-muted)}.login-error{background:#ff52521a;border:1px solid rgba(255,82,82,.3);color:var(--danger);padding:8px 12px;border-radius:8px;font-size:13px;margin-bottom:16px}.login-btn{width:100%;padding:12px;background:var(--accent);color:var(--text-inverse);border:none;border-radius:8px;font-weight:600;font-size:15px;cursor:pointer;transition:background var(--transition)}.login-btn:hover:not(:disabled){background:var(--accent-hover)}.login-btn:disabled{opacity:.6;cursor:not-allowed}.login-tabs{display:flex;gap:4px;margin-bottom:20px;background:#ffffff0d;border-radius:8px;padding:3px}.login-tabs button{flex:1;padding:8px 12px;background:transparent;border:none;border-radius:6px;color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.login-tabs button.active{background:var(--accent);color:#fff}.login-tabs button:hover:not(.active){background:#ffffff14}.form-group select{width:100%;padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:14px;outline:none;cursor:pointer}.form-group select option{background:var(--bg-secondary)}.welcome-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:200;animation:fadeIn .3s ease}.welcome-text{font-size:28px;font-weight:600;color:var(--text-primary);margin-bottom:8px;animation:slideUp .5s ease}.welcome-sub{font-size:14px;color:var(--text-secondary);margin-bottom:32px;animation:slideUp .5s ease .1s both}.preload-bar{width:280px;height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden;animation:slideUp .5s ease .2s 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100%}.app{position:relative}.sidebar{position:absolute;top:0;left:0;width:100%;height:100vh;z-index:20;transition:transform .3s ease}.sidebar.closed{transform:translate(-100%)}.chat-panel.empty-state-panel{display:none}.back-btn{display:flex}.message{max-width:85%}.local-video{width:120px;height:90px;bottom:80px;right:12px}.video-controls{bottom:16px;padding:10px 16px;gap:12px}.video-ctrl-btn{width:44px;height:44px}.incoming-call-card{margin:16px;padding:28px 32px}.messages-container{padding:12px}.message-input-container{padding:8px 12px 12px}.chat-header{padding:10px 12px}.emoji-picker{width:300px;left:0;right:auto}.emoji-grid{grid-template-columns:repeat(7,1fr)}.gif-picker{width:calc(100vw - 40px);left:0}.gif-grid{grid-template-columns:repeat(2,1fr)}.gif-message{max-width:200px}.modal-overlay{padding:8px}.profile-modal-v2{max-width:100%;max-height:90vh;overflow-y:auto}.admin-panel{padding:20px 14px;max-width:100%;max-height:90vh}.user-settings{width:100%;max-width:100%;padding:20px 14px;max-height:90vh}.call-settings{width:calc(100vw - 40px);top:10px;right:10px}.context-menu{max-width:calc(100vw - 20px)}.sidebar-logo-bar,.sidebar-header{padding:10px 12px}.sidebar-search{padding:8px 10px}.file-preview-img{max-width:200px}}@media (max-width: 480px){.login-card{padding:28px 24px}.message{max-width:90%}.emoji-picker{width:280px}.emoji-grid{grid-template-columns:repeat(6,1fr)}.gif-picker{width:280px}.video-ctrl-btn{width:40px;height:40px}.video-controls{gap:8px;padding:8px 14px}.conference-grid{padding:50px 0 70px;gap:4px}.video-peer-name{font-size:14px}.incoming-call-card{padding:24px 20px}.call-action-btn svg{width:48px;height:48px;padding:12px}.settings-tabs button{padding:8px;font-size:12px}.admin-panel,.user-settings{padding:16px 10px}}.connection-banner{position:fixed;top:0;left:0;right:0;z-index:200;text-align:center;padding:8px 16px;font-size:13px;font-weight:600;animation:slideDown .3s ease}.connection-banner.disconnected{background:var(--danger);color:#fff}.connection-banner.reconnecting{background:var(--away);color:#000}.connection-banner.failed{background:var(--danger);color:#fff}.connection-banner.reconnected{background:var(--success);color:#000;animation:slideDown .3s ease,bannerFadeOut .5s ease 2.5s forwards}@keyframes slideDown{0%{transform:translateY(-100%)}to{transform:translateY(0)}}@keyframes bannerFadeOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-100%)}}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:10px;pointer-events:none;width:380px;max-width:calc(100vw - 48px)}.toast-notification{display:flex;align-items:center;gap:14px;padding:16px 20px;background:linear-gradient(135deg,#1e1e3a,#2a2a4a);border:1px solid rgba(255,255,255,.1);border-left:4px solid var(--accent);border-radius:12px;box-shadow:0 8px 32px #0006,0 2px 8px #0003;pointer-events:all;cursor:pointer;animation:toastSlideIn .35s cubic-bezier(.16,1,.3,1);transition:opacity .3s ease,transform .3s ease,border-color .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.toast-notification.exiting{opacity:0;transform:translate(120%)}.toast-notification:hover{background:linear-gradient(135deg,#252548,#303060);border-left-color:var(--accent-bright, #00d4ff);transform:translate(-4px)}.toast-notification.message{border-left-color:var(--accent)}.toast-notification.online{border-left-color:var(--online)}.toast-notification.message .toast-icon{background:#00b4d826;color:var(--accent)}.toast-notification.online .toast-icon{background:#00c85326;color:var(--online)}.toast-icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:#ffffff14}.toast-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.toast-title{font-size:15px;font-weight:600;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toast-body{font-size:13px;color:#ffffffa6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toast-close{flex-shrink:0;background:#ffffff14;border:none;color:#ffffff80;font-size:18px;cursor:pointer;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;line-height:1;transition:all .2s}.toast-close:hover{background:#ffffff26;color:#fff}@keyframes toastSlideIn{0%{opacity:0;transform:translate(120%) scale(.9)}to{opacity:1;transform:translate(0) scale(1)}}.upload-bubble{background:var(--bg-tertiary)!important}.upload-indicator{display:flex;align-items:center;gap:12px;padding:4px 0;min-width:200px}.upload-spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}.upload-indicator-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.upload-indicator-name{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-indicator-track{height:4px;background:var(--border);border-radius:2px;overflow:hidden}.upload-indicator-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .2s ease}.upload-indicator-pct{font-size:11px;color:var(--accent)}.whiteboard-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:5000;background:#000000b3;display:flex;align-items:center;justify-content:center;padding:20px}.whiteboard-modal{width:100%;max-width:1200px;height:80vh;background:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-light);display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-lg)}.whiteboard-header{display:flex;align-items:center;padding:10px 16px;background:var(--bg-tertiary);border-bottom:1px solid 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transparent;cursor:pointer;transition:var(--transition)}.wb-color-btn.active{border-color:var(--accent);transform:scale(1.2)}.wb-size-btn{width:28px;height:28px;border:none;background:var(--bg-input);color:var(--text-muted);border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center}.wb-size-btn.active{background:var(--accent-dim);color:var(--accent)}.wb-separator{width:1px;height:24px;background:var(--border);margin:0 4px}.whiteboard-actions{display:flex;gap:8px;margin-left:auto}.wb-save-btn{display:flex;align-items:center;gap:6px;padding:6px 16px;background:var(--accent);color:#fff;border:none;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;transition:var(--transition)}.wb-save-btn:hover{filter:brightness(1.15)}.wb-cancel-btn{padding:6px 16px;background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border);border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition)}.wb-cancel-btn:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.whiteboard-invite-banner{position:absolute;top:60px;left:50%;transform:translate(-50%);z-index:100;display:flex;align-items:center;gap:12px;padding:12px 20px;background:linear-gradient(135deg,#1a2a4a,#1e3a5f);border:1px solid var(--accent);border-radius:12px;box-shadow:0 8px 32px #0006;color:var(--text-primary);font-size:14px;animation:toastSlideIn .35s cubic-bezier(.16,1,.3,1)}.whiteboard-invite-banner svg{color:var(--accent);flex-shrink:0}.wb-invite-accept{padding:6px 16px;background:var(--accent);color:#fff;border:none;border-radius:6px;font-weight:600;font-size:13px;cursor:pointer}.wb-invite-accept:hover{filter:brightness(1.15)}.wb-invite-decline{padding:6px 16px;background:transparent;color:var(--text-muted);border:1px solid var(--border);border-radius:6px;font-size:13px;cursor:pointer}.wb-invite-decline:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.whiteboard-canvas{flex:1;cursor:crosshair;touch-action:none}.lightbox-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:6000;background:#000000e6;display:flex;align-items:center;justify-content:center;cursor:zoom-out}.lightbox-overlay img,.lightbox-overlay video{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:4px}.lightbox-close{position:fixed;top:16px;right:16px;background:#00000080;border:none;color:#fff;font-size:28px;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center}@media (max-width: 768px){.toast-container{bottom:72px;right:12px;left:12px;width:auto;max-width:none}.toast-notification{padding:14px 16px;gap:12px;border-radius:10px}.toast-title{font-size:14px}.toast-body{font-size:12px}.toast-icon{width:36px;height:36px;border-radius:8px}.whiteboard-overlay{padding:0}.whiteboard-modal{max-width:100%;height:100vh;border-radius:0}.whiteboard-header{padding:8px 12px}}.message-bubble{position:relative}.message-hover-actions{display:flex;gap:2px;position:absolute;top:-6px;right:-4px;opacity:0;transition:opacity .15s;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;padding:2px;z-index:5}.message.other .message-hover-actions{right:auto;left:-4px}.message:hover .message-hover-actions{opacity:1}.msg-action-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;transition:all .15s}.msg-action-btn.delete:hover{color:var(--danger);background:#ef444426}.message-edit-form{display:flex;flex-direction:column;gap:6px;min-width:200px}.message-edit-form textarea{background:var(--bg-input);border:1px solid var(--accent);border-radius:6px;color:var(--text-primary);padding:8px;font-size:13px;font-family:inherit;resize:vertical;min-height:40px;outline:none}.message-edit-actions{display:flex;gap:6px;justify-content:flex-end}.msg-edit-save{background:var(--accent);color:#fff;border:none;border-radius:4px;padding:4px 12px;font-size:12px;cursor:pointer;font-weight:500}.msg-edit-save:hover{background:var(--accent-hover)}.msg-edit-cancel{background:var(--bg-hover);color:var(--text-secondary);border:none;border-radius:4px;padding:4px 12px;font-size:12px;cursor:pointer}.msg-edit-cancel:hover{color:var(--text-primary)}.message-edited{font-size:10px;color:var(--text-muted);font-style:italic;margin-left:4px}.toast-icon .avatar-wrapper{width:36px!important;height:36px!important;min-width:36px!important}.toast-icon .avatar{font-size:14px!important}@media (max-width: 768px){.message-hover-actions{opacity:.6}}.avatar-picker-section{padding:12px 20px;border-top:1px solid var(--border)}.avatar-picker-header{font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}.avatar-picker-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.avatar-picker-item{width:100%;aspect-ratio:1;border:2px solid transparent;border-radius:12px;overflow:hidden;cursor:pointer;background:var(--bg-tertiary);padding:0;transition:all .2s;display:flex;align-items:center;justify-content:center;flex-direction:column}.avatar-picker-item img{width:100%;height:100%;object-fit:cover;border-radius:10px}.avatar-picker-item:hover{border-color:var(--accent);transform:scale(1.05)}.avatar-picker-item.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-dim)}.avatar-picker-item.upload-item{background:var(--bg-hover);color:var(--text-secondary);gap:4px}.avatar-picker-item.upload-item span{font-size:10px;font-weight:500}.avatar-picker-item.upload-item:hover{background:var(--bg-active);color:var(--accent)}.avatar-remove-btn{display:flex;align-items:center;gap:6px;margin-top:10px;background:none;border:none;color:var(--danger);font-size:12px;cursor:pointer;padding:6px 0;opacity:.8}.avatar-remove-btn:hover{opacity:1}@media (max-width: 768px){.avatar-picker-grid{grid-template-columns:repeat(4,1fr)}}.mobile-only{display:none}@media (max-width: 768px){.mobile-only{display:flex}}[data-theme=light]{--bg-primary: #f5f5f8;--bg-secondary: #ffffff;--bg-tertiary: #e8e8f0;--bg-hover: #ebebf2;--bg-active: #dde0eb;--bg-input: #f0f0f6;--bg-surface: #fafafe;--accent: #0077b6;--accent-hover: #005f8c;--accent-dim: rgba(0, 119, 182, .12);--text-primary: #1a1a2e;--text-secondary: #555570;--text-muted: #8888a0;--text-inverse: #ffffff;--online: #00c853;--away: #f9a825;--busy: #e53935;--danger: #e53935;--success: #00c853;--border: #d8d8e8;--border-light: #e0e0ee;--msg-own: #0077b6;--msg-own-text: #ffffff;--msg-other: #e8e8f0;--msg-other-text: #1a1a2e;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--shadow-lg: 0 8px 32px rgba(0,0,0,.12)}[data-theme=light] ::-webkit-scrollbar-thumb{background:#c0c0d0}[data-theme=light] ::-webkit-scrollbar-thumb:hover{background:#a0a0b0}.reactions-row{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px;padding:2px 0}.reaction-chip{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:12px;background:var(--bg-hover);border:1px solid var(--border);font-size:13px;cursor:pointer;transition:all var(--transition);-webkit-user-select:none;user-select:none}.reaction-chip:hover{background:var(--bg-active);border-color:var(--accent)}.reaction-chip.own{background:var(--accent-dim);border-color:var(--accent)}.reaction-chip .reaction-emoji{font-size:14px}.reaction-chip .reaction-count{font-size:11px;color:var(--text-secondary);font-weight:600}.msg-actions{position:absolute;top:-8px;right:8px;display:none;gap:2px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:20px;padding:2px 4px;box-shadow:var(--shadow-md);z-index:5}.message-row:hover .msg-actions{display:flex}.msg-action-btn{background:none;border:none;padding:4px 6px;cursor:pointer;font-size:14px;border-radius:12px;color:var(--text-secondary);transition:all var(--transition);display:flex;align-items:center;justify-content:center}.msg-action-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.quick-reactions{display:flex;gap:2px;padding:2px}.quick-reaction-btn{background:none;border:none;padding:3px 5px;font-size:16px;cursor:pointer;border-radius:8px;transition:all var(--transition);line-height:1}.quick-reaction-btn:hover{background:var(--bg-hover);transform:scale(1.2)}.reply-quote{background:var(--bg-hover);border-left:3px solid var(--accent);border-radius:4px;padding:4px 8px;margin-bottom:4px;font-size:12px;color:var(--text-secondary);cursor:pointer;max-width:280px;overflow:hidden}.reply-quote:hover{background:var(--bg-active)}.reply-quote-sender{font-weight:600;color:var(--accent);margin-right:4px}.reply-quote-text{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-tertiary);border-left:3px solid var(--accent);border-radius:4px;margin-bottom:4px}.reply-preview-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;font-size:12px}.reply-preview-content strong{color:var(--accent);font-size:11px}.reply-preview-content span{color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview-close{background:none;border:none;color:var(--text-muted);font-size:18px;cursor:pointer;padding:2px 6px;border-radius:4px}.reply-preview-close:hover{color:var(--danger);background:var(--bg-hover)}.pinned-banner{background:var(--bg-tertiary);border-bottom:1px solid var(--border);padding:8px 16px;cursor:pointer;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary);transition:background var(--transition)}.pinned-banner:hover{background:var(--bg-hover)}.pinned-banner svg{color:var(--accent);flex-shrink:0}.pinned-banner-text{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pinned-banner-count{background:var(--accent);color:var(--text-inverse);font-size:10px;font-weight:700;padding:1px 6px;border-radius:10px}.pinned-list{background:var(--bg-surface);border-bottom:1px solid var(--border);max-height:200px;overflow-y:auto;animation:slideDown .2s ease}@keyframes slideDown{0%{max-height:0;opacity:0}to{max-height:200px;opacity:1}}.pinned-item{display:flex;align-items:center;gap:8px;padding:8px 16px;font-size:13px;border-bottom:1px solid var(--border)}.pinned-item:last-child{border-bottom:none}.pinned-item-content{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-primary)}.pinned-item-sender{font-weight:600;color:var(--accent);margin-right:4px;font-size:11px}.unpin-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;font-size:16px;line-height:1}.unpin-btn:hover{color:var(--danger);background:var(--bg-hover)}.read-receipt{font-size:12px;margin-left:4px;opacity:.6}.read-receipt.sent{color:var(--text-muted)}.read-receipt.read{color:var(--accent);opacity:1}.voice-message{display:flex;align-items:center;gap:8px;padding:4px 0;min-width:180px}.voice-play-btn{width:36px;height:36px;border-radius:50%;border:none;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition)}.voice-play-btn:hover{background:var(--accent-hover);transform:scale(1.05)}.voice-waveform{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.voice-wave-bars{display:flex;align-items:center;gap:2px;height:20px}.voice-bar{width:3px;border-radius:2px;background:var(--accent);transition:opacity .1s}.voice-progress-track{width:100%;height:3px;background:var(--bg-hover);border-radius:2px;overflow:hidden}.voice-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .1s}.voice-duration{font-size:11px;color:var(--text-secondary);font-variant-numeric:tabular-nums;white-space:nowrap}.recording-bar{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--bg-secondary);border-top:1px solid var(--border)}.recording-dot{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:pulse-recording 1s ease infinite}@keyframes pulse-recording{0%,to{opacity:1}50%{opacity:.3}}.recording-time{font-variant-numeric:tabular-nums;font-size:14px;font-weight:600;color:var(--text-primary)}.recording-label{flex:1;color:var(--text-secondary);font-size:13px}.recording-cancel{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:6px 12px;border-radius:6px;font-size:13px}.recording-cancel:hover{background:var(--bg-hover);color:var(--danger)}.recording-stop{display:flex;align-items:center;gap:6px;background:var(--accent);color:#fff;border:none;padding:6px 14px;border-radius:20px;cursor:pointer;font-size:13px;font-weight:600}.recording-stop:hover{background:var(--accent-hover)}.msg-code-block{background:#00000040;border-radius:6px;padding:8px 12px;margin:4px 0;font-family:Consolas,Fira Code,monospace;font-size:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-all}[data-theme=light] .msg-code-block{background:#0000000f}.msg-inline-code{background:#0003;padding:1px 5px;border-radius:3px;font-family:Consolas,Fira Code,monospace;font-size:12px}[data-theme=light] .msg-inline-code{background:#00000014}.message-text strong{font-weight:700}.message-text em{font-style:italic}.message-text del{text-decoration:line-through;opacity:.7}.mention-tag{background:var(--accent-dim);color:var(--accent);padding:1px 4px;border-radius:3px;font-weight:600;font-size:13px}.mention-dropdown{position:absolute;bottom:100%;left:0;right:0;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);max-height:200px;overflow-y:auto;z-index:10}.mention-dropdown-item{display:flex;align-items:center;gap:8px;padding:8px 12px;width:100%;background:none;border:none;color:var(--text-primary);cursor:pointer;font-size:13px;text-align:left}.mention-dropdown-item:hover{background:var(--bg-hover)}.search-panel{background:var(--bg-secondary);border-radius:var(--radius-lg);width:560px;max-width:95vw;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);overflow:hidden}.search-panel-header{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-secondary)}.search-panel-header input{flex:1;background:none;border:none;color:var(--text-primary);font-size:15px;outline:none}.search-panel-header input::placeholder{color:var(--text-muted)}.search-panel-close{background:none;border:none;color:var(--text-muted);font-size:22px;cursor:pointer;padding:0 4px}.search-panel-close:hover{color:var(--text-primary)}.search-panel-results{flex:1;overflow-y:auto;padding:8px}.search-panel-loading,.search-panel-empty{text-align:center;padding:32px;color:var(--text-muted);font-size:14px}.search-result-msg{padding:10px 12px;border-radius:var(--radius);cursor:pointer;transition:background var(--transition)}.search-result-msg:hover{background:var(--bg-hover)}.search-result-msg-header{display:flex;align-items:center;gap:8px;margin-bottom:4px;font-size:12px;color:var(--text-secondary)}.search-result-msg-header span:first-of-type{font-weight:600;color:var(--text-primary)}.search-result-msg-time{margin-left:auto;font-size:11px;color:var(--text-muted)}.search-result-group-badge{background:var(--accent-dim);color:var(--accent);padding:1px 6px;border-radius:8px;font-size:10px;font-weight:600}.search-result-msg-body{font-size:13px;color:var(--text-primary);line-height:1.4}.search-result-msg-sender{font-weight:600;color:var(--accent);margin-right:4px}.search-highlight{background:#ffc8004d;border-radius:2px;padding:0 1px}[data-theme=light] .search-highlight{background:#ffc80080}.search-messages-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px 6px;border-radius:6px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.search-messages-btn:hover{background:var(--bg-hover);color:var(--accent)}.tutorial-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:9999;padding:16px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.tutorial-card{background:var(--bg-secondary);border-radius:var(--radius-lg);width:420px;max-width:95vw;padding:32px 28px 24px;position:relative;box-shadow:var(--shadow-lg);text-align:center;animation:scaleIn .3s ease}@keyframes scaleIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.tutorial-close{position:absolute;top:12px;right:12px;background:none;border:none;color:var(--text-muted);font-size:22px;cursor:pointer;padding:4px 8px;border-radius:6px}.tutorial-close:hover{color:var(--text-primary);background:var(--bg-hover)}.tutorial-dots{display:flex;justify-content:center;gap:6px;margin-bottom:24px}.tutorial-dot{width:8px;height:8px;border-radius:50%;background:var(--border-light);cursor:pointer;transition:all var(--transition)}.tutorial-dot.active{background:var(--accent);width:20px;border-radius:4px}.tutorial-dot.done{background:var(--accent);opacity:.5}.tutorial-slide{padding:8px 0 16px;min-height:200px;display:flex;flex-direction:column;align-items:center;gap:12px}.tutorial-icon{width:72px;height:72px;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:32px;margin-bottom:8px}.tutorial-title{font-size:20px;font-weight:700;color:var(--text-primary)}.tutorial-desc{font-size:14px;color:var(--text-secondary);line-height:1.6;max-width:340px}.tutorial-step-label{font-size:12px;color:var(--text-muted);margin-bottom:12px}.tutorial-nav{display:flex;justify-content:space-between;gap:12px;margin-bottom:16px}.tutorial-btn{padding:10px 24px;border-radius:20px;border:none;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition)}.tutorial-btn.primary{background:var(--accent);color:#fff;flex:1}.tutorial-btn.primary:hover{background:var(--accent-hover)}.tutorial-btn.secondary{background:var(--bg-hover);color:var(--text-primary)}.tutorial-btn.secondary:hover{background:var(--bg-active)}.tutorial-checkbox{display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;color:var(--text-muted);cursor:pointer}.tutorial-checkbox input{cursor:pointer}.theme-switcher{display:flex;gap:8px}.theme-option{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px;border-radius:var(--radius);border:2px solid var(--border);background:var(--bg-hover);color:var(--text-primary);cursor:pointer;transition:all var(--transition);font-size:13px;font-weight:600}.theme-option:hover{border-color:var(--accent);background:var(--bg-active)}.theme-option.active{border-color:var(--accent);background:var(--accent-dim)}.theme-option-icon{font-size:24px}.settings-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;font-size:13px;color:var(--text-primary)}.toggle-switch{position:relative;display:inline-block;width:40px;height:22px}.toggle-switch input{display:none}.toggle-slider{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--border-light);border-radius:22px;cursor:pointer;transition:all var(--transition)}.toggle-slider:before{content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#fff;top:2px;left:2px;transition:all var(--transition)}.toggle-switch input:checked+.toggle-slider{background:var(--accent)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(18px)}.status-msg-display{cursor:pointer;padding:2px 0;max-width:160px}.status-msg-text{font-size:11px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.status-msg-placeholder{font-size:11px;color:var(--text-muted);opacity:.5;font-style:italic}.status-msg-edit input{width:100%;background:var(--bg-input);border:1px solid var(--accent);border-radius:4px;padding:3px 6px;font-size:11px;color:var(--text-primary);outline:none}.upload-progress-bar{padding:8px 12px;background:var(--bg-tertiary);border-bottom:1px solid var(--border)}.upload-progress-item{display:flex;align-items:center;gap:8px;padding:4px 0}.upload-progress-label{font-size:12px;color:var(--text-secondary);flex:0 0 auto;max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-progress-track{flex:1;height:4px;background:var(--bg-hover);border-radius:2px;overflow:hidden}.upload-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .3s}.upload-progress-pct{font-size:11px;color:var(--text-muted);font-variant-numeric:tabular-nums;width:32px;text-align:right}.mute-toggle-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center}.mute-toggle-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.mute-toggle-btn.muted{color:var(--danger)}.admin-domains-input{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;color:var(--text-primary);font-size:13px;resize:vertical;outline:none;font-family:Consolas,monospace;line-height:1.6}.admin-domains-input:focus{border-color:var(--accent)}.admin-domains-input::placeholder{color:var(--text-muted)}.message-input-container{border-top:1px solid var(--border);background:var(--bg-secondary)}.message-input-wrapper{display:flex;align-items:flex-end;gap:4px;padding:8px 12px}.input-action-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:8px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition)}.input-action-btn:hover{background:var(--bg-hover);color:var(--accent)}.textarea-wrapper{flex:1;position:relative;min-width:0}.textarea-wrapper textarea{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px;color:var(--text-primary);font-size:14px;resize:none;outline:none;max-height:120px;line-height:1.4}.textarea-wrapper textarea:focus{border-color:var(--accent)}.textarea-wrapper textarea::placeholder{color:var(--text-muted)}.send-btn{background:var(--accent);color:#fff;border:none;width:36px;height:36px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition)}.send-btn:hover{background:var(--accent-hover);transform:scale(1.05)}.mic-btn{background:var(--bg-hover);color:var(--text-secondary)}.mic-btn:hover{background:var(--accent-dim);color:var(--accent)}.group-typing-indicator{font-size:12px;color:var(--text-muted);padding:4px 16px;font-style:italic}@media (max-width: 768px){.tutorial-card{padding:24px 16px 20px}.tutorial-icon{width:56px;height:56px;font-size:26px}.tutorial-title{font-size:18px}.tutorial-desc{font-size:13px}.search-panel{width:100%;max-width:100vw;height:100vh;max-height:100vh;border-radius:0}.voice-message{min-width:140px}.quick-reactions{gap:1px}.quick-reaction-btn{font-size:14px;padding:2px 3px}}