:root{--bg-main: #F7F9FC;--bg-sidebar: #FFFFFF;--bg-chat: #F8FAFC;--bg-incoming: #FFFFFF;--bg-outgoing: #DBEAFE;--color-primary-blue: #2563EB;--color-primary-blue-hover: #1D4ED8;--color-primary-blue-subtle: #EFF6FF;--color-primary-green: #059669;--color-primary-green-hover: #047857;--color-primary-green-subtle: #ECFDF5;--text-main: #172033;--text-secondary: #64748B;--text-muted: #94A3B8;--border-color: #E8EDF4;--border-light: #F1F5F9;--color-online: #10B981;--color-error: #EF4444;--color-warning: #F59E0B;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--radius-xs: 4px;--radius-sm: 6px;--radius-md: 8px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(16, 24, 40, .05);--shadow-md: 0 4px 6px -1px rgba(16, 24, 40, .08), 0 2px 4px -2px rgba(16, 24, 40, .04);--shadow-lg: 0 12px 24px -4px rgba(16, 24, 40, .08), 0 4px 6px -2px rgba(16, 24, 40, .03);--shadow-modal: 0 20px 40px -8px rgba(16, 24, 40, .16);--transition-fast: .15s ease;--transition-normal: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;font-family:var(--font-family);background-color:var(--bg-main);color:var(--text-main);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:transparent;outline:none;transition:all var(--transition-fast)}input,textarea{font-family:inherit;font-size:inherit;outline:none;border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-main);background:#fff;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,textarea:focus{border-color:var(--color-primary-blue);box-shadow:0 0 0 3px #2563eb1a}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:38px;padding:0 16px;background:var(--color-primary-green);color:#fff;font-weight:500;border-radius:var(--radius-sm);transition:background-color var(--transition-fast)}.btn-primary:hover{background:var(--color-primary-green-hover)}.btn-primary:disabled{opacity:.55;cursor:not-allowed}.btn-primary-sm{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:32px;padding:0 12px;background:var(--color-primary-green);color:#fff;font-weight:500;font-size:13px;border-radius:var(--radius-sm)}.btn-primary-sm:hover{background:var(--color-primary-green-hover)}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:38px;padding:0 16px;background:#fff;border:1px solid var(--border-color);color:var(--text-main);font-weight:500;border-radius:var(--radius-sm)}.btn-secondary:hover{background:#f8fafc;border-color:#cbd5e1}.btn-secondary-sm{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:32px;padding:0 12px;background:#fff;border:1px solid var(--border-color);color:var(--text-main);font-weight:500;font-size:13px;border-radius:var(--radius-sm)}.btn-secondary-sm:hover{background:#f8fafc;border-color:#cbd5e1}.btn-danger-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:38px;padding:0 16px;background:#fef2f2;border:1px solid #FCA5A5;color:var(--color-error);font-weight:500;border-radius:var(--radius-sm);width:100%}.btn-danger-outline:hover{background:#fee2e2}.profile-avatar{position:relative;border-radius:50%;display:grid;place-items:center;font-weight:600;flex-shrink:0;-webkit-user-select:none;user-select:none}.avatar-xs{width:26px;height:26px;font-size:10px}.avatar-sm{width:32px;height:32px;font-size:12px}.avatar-md{width:42px;height:42px;font-size:14px}.avatar-lg{width:56px;height:56px;font-size:18px}.avatar-xl{width:72px;height:72px;font-size:24px}.avatar-img{width:100%;height:100%;object-fit:cover;border-radius:50%}.avatar-online-dot{position:absolute;right:0;bottom:0;width:10px;height:10px;border-radius:50%;background:var(--color-online);border:2px solid #FFFFFF}.online-indicator-wrapper{display:inline-flex;align-items:center;gap:6px}.online-indicator-dot{border-radius:50%;display:inline-block;flex-shrink:0}.online-indicator-dot.is-online{background:var(--color-online)}.online-indicator-dot.is-offline{background:var(--text-muted)}.online-indicator-text{font-size:12px;color:var(--text-secondary)}.app-loading-screen{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:var(--bg-main);color:var(--text-secondary)}.loading-logo-box{position:relative;width:60px;height:60px;display:grid;place-items:center}.loading-logo{width:48px;height:48px;border-radius:var(--radius-sm);background:var(--color-primary-green);color:#fff;font-weight:700;font-size:24px;display:grid;place-items:center;box-shadow:0 4px 12px #05966940;z-index:2}.loading-pulse-ring{position:absolute;inset:-6px;border-radius:var(--radius-md);border:2px solid var(--color-primary-green);opacity:.4;animation:pulse-ring 1.8s 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var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);overflow:hidden}.login-brand-panel{background:#0f172a;color:#fff;padding:44px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.login-brand-panel:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 10% 20%,rgba(37,99,235,.2) 0%,transparent 60%),radial-gradient(circle at 90% 80%,rgba(5,150,105,.15) 0%,transparent 50%);pointer-events:none}.login-brand-header{display:flex;align-items:center;gap:12px;position:relative;z-index:2}.login-logo-mark{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--color-primary-green);color:#fff;font-weight:700;font-size:18px;display:grid;place-items:center}.login-brand-name{font-size:17px;font-weight:700;letter-spacing:-.02em}.login-brand-hero{position:relative;z-index:2;margin:32px 0}.brand-tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background:#ffffff14;border:1px solid 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14px;font-size:14px}.login-error-alert{padding:10px 14px;background:#fef2f2;border:1px solid #FCA5A5;border-radius:var(--radius-sm);color:var(--color-error);font-size:13px}.login-submit-btn{display:flex;align-items:center;justify-content:center;gap:8px;height:44px;background:var(--color-primary-green);color:#fff;font-weight:600;font-size:14px;border-radius:var(--radius-sm);margin-top:6px}.login-submit-btn:hover{background:var(--color-primary-green-hover)}.login-submit-btn:disabled{opacity:.6;cursor:wait}.login-notice-card{display:flex;align-items:flex-start;gap:8px;padding:12px;background:#f8fafc;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:12px;color:var(--text-secondary);line-height:1.5;margin-top:10px}.notice-lock-icon{color:var(--color-primary-blue);flex-shrink:0;margin-top:2px}.lizan-desktop-shell{display:flex;height:100dvh;width:100vw;background:var(--bg-main);overflow:hidden;position:relative}.nav-rail{width:68px;min-width:68px;background:var(--bg-sidebar);border-right:1px solid var(--border-color);display:flex;flex-direction:column;justify-content:space-between;align-items:center;padding:16px 0;z-index:25;flex-shrink:0}.rail-top{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%}.rail-brand{cursor:pointer;margin-bottom:4px}.rail-logo{width:38px;height:38px;border-radius:var(--radius-sm);background:var(--color-primary-green);color:#fff;font-weight:700;font-size:18px;display:grid;place-items:center;box-shadow:0 2px 6px #05966933}.toggle-rail-btn{display:none}.rail-nav{display:flex;flex-direction:column;gap:6px;width:100%;padding:0 8px}.rail-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:52px;border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition-fast)}.rail-item:hover{background:#f1f5f9;color:var(--color-primary-blue)}.rail-item.active{background:var(--color-primary-blue-subtle);color:var(--color-primary-blue);font-weight:600}.rail-label{font-size:10px;font-weight:500;margin-top:4px}.rail-badge{position:absolute;top:6px;right:8px;background:var(--color-primary-green);color:#fff;font-size:10px;font-weight:700;height:16px;min-width:16px;padding:0 4px;border-radius:8px;display:grid;place-items:center}.rail-bottom{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%;padding:0 8px}.admin-item{color:#7c3aed}.admin-item:hover,.admin-item.active{color:#7c3aed;background:#f5f3ff}.rail-user-profile{cursor:pointer;margin-top:4px;transition:transform var(--transition-fast)}.rail-user-profile:hover{transform:scale(1.05)}.mobile-bottom-nav{display:none}.lizan-columns-container{display:flex;flex:1 1 0;min-width:0;min-height:0;height:100%;overflow:hidden;position:relative}.column-left{width:380px;min-width:330px;max-width:440px;background:var(--bg-sidebar);border-right:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;min-height:0;flex-shrink:0;overflow:hidden;transition:width var(--transition-normal)}.column-left.rail-collapsed{display:none}.column-center{flex:1 1 0;min-width:0;min-height:0;height:100%;display:flex;flex-direction:column;background:var(--bg-chat);position:relative;overflow:hidden}.column-right{width:350px;min-width:320px;max-width:380px;background:#fff;border-left:1px solid var(--border-color);height:100%;min-height:0;flex-shrink:0;display:flex;flex-direction:column;overflow:hidden;z-index:10}.conversation-sidebar{display:flex;flex-direction:column;height:100%;min-height:0;overflow:hidden}.sidebar-header{height:64px;padding:0 16px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.sidebar-brand-block{display:flex;align-items:center;gap:10px}.sidebar-logo{width:28px;height:28px;border-radius:var(--radius-sm);background:var(--color-primary-green);color:#fff;font-weight:700;font-size:15px;display:grid;place-items:center}.sidebar-title-group{display:flex;flex-direction:column}.sidebar-app-name{font-size:15px;font-weight:700;letter-spacing:-.02em;color:var(--text-main);line-height:1.2}.sidebar-subtitle{font-size:11px;color:var(--text-secondary)}.sidebar-header-actions{display:flex;align-items:center;gap:6px}.btn-new-chat{display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 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solid transparent;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.conversation-item:hover{background:#f8fafc}.conversation-item.active{background:var(--color-primary-blue-subtle);border-color:#bfdbfe}.conversation-avatar-wrap{flex-shrink:0}.conversation-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.conversation-header-row{display:flex;align-items:center;justify-content:space-between}.conversation-name-wrap{display:flex;align-items:center;gap:5px;min-width:0}.group-label-icon{color:var(--color-primary-blue);flex-shrink:0}.conversation-name{font-size:13px;font-weight:600;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-item.active .conversation-name{color:var(--color-primary-blue)}.conversation-time{font-size:11px;color:var(--text-muted);font-variant-numeric:tabular-nums;flex-shrink:0}.conversation-sub-row{display:flex;align-items:center;justify-content:space-between}.conversation-preview-wrap{display:flex;align-items:center;gap:4px;min-width:0;flex:1}.sent-indicator{color:var(--text-muted);display:inline-flex}.conversation-preview{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-badges{display:flex;align-items:center;gap:6px;flex-shrink:0}.muted-icon{color:var(--text-muted)}.unread-badge{background:var(--color-primary-green);color:#fff;font-size:10px;font-weight:700;height:18px;min-width:18px;padding:0 5px;border-radius:var(--radius-full);display:grid;place-items:center}.sidebar-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px 16px;margin:auto 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var(--border-color);background:#fafafc;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.user-profile-card{display:flex;align-items:center;gap:10px;min-width:0;flex:1}.user-profile-details{display:flex;flex-direction:column;min-width:0}.user-profile-name{font-size:13px;font-weight:600;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-profile-status{display:flex;align-items:center;gap:5px}.user-profile-sub{font-size:11px;color:var(--text-secondary)}.footer-actions{display:flex;align-items:center;gap:4px}.footer-btn{width:32px;height:32px;border-radius:var(--radius-sm);display:grid;place-items:center;color:var(--text-secondary)}.footer-btn:hover{background:#e2e8f0;color:var(--text-main)}.footer-btn.logout-btn:hover{background:#fee2e2;color:var(--color-error)}.chat-header{height:64px;padding:0 20px;background:#fff;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;z-index:5}.header-left{display:flex;align-items:center;gap:12px;min-width:0}.header-back-btn{display:none;width:32px;height:32px;border-radius:var(--radius-sm);place-items:center;color:var(--text-secondary)}.header-back-btn:hover{background:#f1f5f9;color:var(--text-main)}.header-avatar-wrap{flex-shrink:0}.header-info{display:flex;flex-direction:column;min-width:0}.header-title{font-size:15px;font-weight:600;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-status{font-size:12px;color:var(--text-secondary)}.status-presence.is-online{color:var(--color-online);font-weight:500}.status-typing{color:var(--color-primary-green);font-weight:600;display:inline-flex;align-items:center;gap:4px}.typing-dots{display:inline-flex;gap:2px}.typing-dots i{width:3px;height:3px;border-radius:50%;background:var(--color-primary-green);animation:typing-bounce 1.2s infinite ease-in-out}.typing-dots i:nth-child(2){animation-delay:.2s}.typing-dots i:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-3px)}}.header-actions{display:flex;align-items:center;gap:4px}.header-action-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:grid;place-items:center;color:var(--text-secondary);transition:all var(--transition-fast)}.header-action-btn:hover{background:#f1f5f9;color:var(--color-primary-blue)}.header-action-btn.active{background:var(--color-primary-blue-subtle);color:var(--color-primary-blue)}.header-action-btn:disabled{opacity:.4;cursor:not-allowed}.header-search-bar{display:flex;align-items:center;gap:8px;width:100%}.header-search-icon{color:var(--color-primary-blue);flex-shrink:0}.header-search-input{flex:1;height:36px;padding:0 10px;font-size:13px}.header-search-close-btn{width:32px;height:32px;border-radius:var(--radius-sm);display:grid;place-items:center;color:var(--text-secondary)}.header-search-close-btn:hover{background:#f1f5f9;color:var(--text-main)}.chat-message-list-wrapper{flex:1 1 0;min-height:0;position:relative;display:flex;flex-direction:column;overflow:hidden}.chat-message-list{flex:1 1 0;min-height:0;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain;touch-action:pan-y;padding:20px 24px;display:flex;flex-direction:column;gap:6px}.loading-older-messages{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 0 12px;font-size:12px;color:var(--text-secondary)}.chat-bottom-anchor{height:1px;flex-shrink:0}.scroll-to-bottom-btn{position:absolute;bottom:16px;right:24px;width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--border-color);box-shadow:var(--shadow-md);color:var(--text-secondary);display:grid;place-items:center;z-index:10;transition:transform var(--transition-fast)}.scroll-to-bottom-btn:hover{transform:translateY(-2px);color:var(--color-primary-blue)}.scroll-unread-count{position:absolute;top:-4px;right:-4px;background:var(--color-primary-green);color:#fff;font-size:10px;font-weight:700;height:18px;min-width:18px;padding:0 4px;border-radius:var(--radius-full);display:grid;place-items:center}.chat-date-separator{display:flex;align-items:center;gap:12px;margin:16px 0;width:100%}.date-separator-line{flex:1;height:1px;background:var(--border-color)}.date-separator-label{font-size:11px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.peer-typing-indicator{align-self:flex-start;display:flex;align-items:center;gap:4px;padding:8px 14px;background:var(--bg-incoming);border:1px solid 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var(--transition-fast)}button.account-status-pill:hover{opacity:.82}.admin-inline-panel{display:flex;flex-direction:column;height:100%;width:100%}.admin-header-brand{display:flex;align-items:center;gap:12px}.admin-avatar-badge{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--color-primary-blue-subtle);color:var(--color-primary-blue);display:grid;place-items:center}.admin-inline-content{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:24px}.call-overlay-backdrop{position:fixed;inset:0;background:#0f172abf;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;padding:20px;z-index:120}.call-overlay-modal{width:min(440px,100%);background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-modal);overflow:hidden;display:flex;flex-direction:column}.call-overlay-modal.video-mode{width:min(780px,100%);background:#0f172a;color:#fff}.call-overlay-header{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(0,0,0,.08)}.video-mode .call-overlay-header{border-bottom:1px solid rgba(255,255,255,.1)}.call-overlay-titles{display:flex;flex-direction:column}.call-mode-badge{font-size:10px;font-weight:700;letter-spacing:.1em;color:var(--color-primary-green)}.video-mode .call-mode-badge{color:#34d399}.call-peer-name{font-size:17px;font-weight:700}.call-phase-status{font-size:12px;color:var(--text-secondary);font-variant-numeric:tabular-nums}.video-mode .call-phase-status{color:#94a3b8}.call-stage-area{position:relative;height:280px;display:grid;place-items:center;background:#f8fafc;overflow:hidden}.call-stage-area.video-stage{height:min(52vh,440px);background:#000}.stage-remote-video{width:100%;height:100%;object-fit:cover}.stage-local-video{position:absolute;right:14px;bottom:14px;width:clamp(100px,20%,160px);aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-sm);border:2px solid rgba(255,255,255,.8);box-shadow:0 4px 12px #0006;z-index:5}.stage-connecting-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#0f172ad9;color:#fff}.stage-connecting-text{font-size:13px;color:#cbd5e1}.btn-playback-prompt{position:absolute;z-index:10;background:#0f172acc;color:#fff;border:1px solid rgba(255,255,255,.2);padding:8px 16px;border-radius:var(--radius-sm);font-size:12px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.stage-audio-wrapper{display:grid;place-items:center}.stage-audio-pulse-ring{padding:16px;border-radius:50%;background:#05966914}.stage-hidden-audio{display:none}.call-overlay-controls{padding:18px 20px;display:flex;align-items:center;justify-content:center;gap:14px;background:#fff;border-top:1px solid var(--border-color)}.video-mode .call-overlay-controls{background:#0f172a;border-top:1px solid rgba(255,255,255,.1)}.call-ctrl-btn{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#f1f5f9;color:var(--text-main);transition:all var(--transition-fast)}.call-ctrl-btn:hover{transform:translateY(-2px)}.call-ctrl-btn.accept{background:var(--color-primary-green);color:#fff}.call-ctrl-btn.accept:hover{background:var(--color-primary-green-hover)}.call-ctrl-btn.decline,.call-ctrl-btn.end-call{background:var(--color-error);color:#fff}.call-ctrl-btn.decline:hover,.call-ctrl-btn.end-call:hover{background:#dc2626}.call-ctrl-btn.active-mute{background:#fee2e2;color:var(--color-error)}.lightbox-backdrop{position:fixed;inset:0;background:#0f172aeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;z-index:150}.lightbox-topbar{height:56px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;background:#0006;color:#fff;flex-shrink:0}.lightbox-filename{font-size:13px;font-weight:500;max-width:320px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lightbox-controls{display:flex;align-items:center;gap:8px}.lightbox-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:grid;place-items:center;color:#e2e8f0;background:#ffffff1a;text-decoration:none}.lightbox-btn:hover{background:#fff3;color:#fff}.lightbox-btn.close-btn:hover{background:var(--color-error)}.lightbox-image-stage{flex:1 1 0;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:24px}.lightbox-image{max-width:90%;max-height:85vh;object-fit:contain;border-radius:var(--radius-xs);box-shadow:0 10px 30px #00000080;transition:transform .15s ease-out}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;align-items:center;gap:10px;padding:12px 16px;background:#0f172a;color:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow-modal);font-size:13px;z-index:200;animation:toast-slide .2s ease-out;max-width:380px}@keyframes toast-slide{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.toast-container.error{background:#7f1d1d;border:1px solid #B91C1C}.toast-container.success{background:#064e3b;border:1px solid #047857}.toast-icon{flex-shrink:0}.toast-text{flex:1;line-height:1.4}.toast-close-btn{color:#94a3b8;display:grid;place-items:center}.toast-close-btn:hover{color:#fff}@media(max-width:1439px){.column-left{width:340px;min-width:300px}.column-right{width:320px;min-width:300px}}@media(max-width:1023px){.nav-rail{width:60px;min-width:60px}.column-left{width:300px;min-width:280px}.column-right{position:fixed;top:0;right:0;bottom:0;width:340px;box-shadow:var(--shadow-modal);z-index:40;transform:translate(100%);transition:transform var(--transition-normal)}.column-right.is-open{transform:translate(0)}.settings-layout-split{flex-direction:column}.settings-nav-sidebar{width:100%;flex-direction:row;overflow-x:auto;border-right:none;border-bottom:1px solid var(--border-color)}}@media(max-width:767px){.nav-rail{display:none}.mobile-bottom-nav{height:56px;border-top:1px solid var(--border-color);background:#fff;display:flex;align-items:center;justify-content:space-around;flex-shrink:0;z-index:30}.mobile-nav-btn{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;font-weight:500;color:var(--text-secondary);padding:6px 12px}.mobile-nav-btn.active{color:var(--color-primary-blue);font-weight:600}.login-card-container{grid-template-columns:1fr;min-height:auto}.login-brand-panel{display:none}.login-mobile-header{display:flex}.login-form-panel{padding:32px 20px}.lizan-columns-container{width:100%}.column-left{width:100%;min-width:100%;max-width:100%;border-right:none}.column-left.mobile-hidden{display:none!important}.column-center{width:100%;min-width:100%}.column-center.mobile-hidden{display:none!important}.header-back-btn{display:grid}.column-right{position:fixed;inset:0;width:100%;min-width:100%;max-width:100%;z-index:50;border-left:none;transform:translate(100%);transition:transform var(--transition-normal)}.column-right.is-open{transform:translate(0)}.chat-message-list{padding:14px 12px}.message-bubble-row{max-width:90%}.emoji-picker-popover{position:fixed;left:12px;right:12px;width:auto;bottom:64px;max-height:240px}.attachment-menu-popover{position:fixed;left:12px;right:12px;width:auto;bottom:64px}.sidebar-footer .logout-btn{display:none!important}.message-composer-wrapper{padding:8px 10px max(10px,env(safe-area-inset-bottom))}.composer-input-row{gap:6px}.composer-action-btn,.composer-send-btn{width:40px;height:40px}.composer-input-field-wrap{min-height:44px;padding:2px 8px}.composer-textarea{min-height:36px;font-size:13px;padding:6px 0}.settings-signout-bottom-card{flex-direction:column;align-items:stretch;gap:12px}.btn-danger-signout{justify-content:center}.toast-container{left:14px;right:14px;bottom:14px;max-width:calc(100vw - 28px)}.settings-layout-split{flex-direction:column}.settings-nav-sidebar{width:100%;flex-direction:row;overflow-x:auto;border-right:none;border-bottom:1px solid var(--border-color)}.settings-section-container{padding:16px 14px}.admin-form-grid{grid-template-columns:1fr}.admin-form-grid .full-width{grid-column:span 1}}