.mobile-floating-hub{position:fixed;right:20px;bottom:calc(85px + env(safe-area-inset-bottom, 0px));width:50px;height:50px;z-index:1000000;display:flex;flex-direction:column-reverse;align-items:center;justify-content:center;gap:12px;pointer-events:auto;touch-action:none!important;-webkit-touch-callout:none!important;-moz-user-select:none!important;user-select:none!important;-webkit-user-select:none!important;transition:bottom .3s cubic-bezier(.16,1,.3,1)}body.has-scroll-btn .mobile-floating-hub,body:has(.scroll-to-top-btn) .mobile-floating-hub{bottom:calc(85px + env(safe-area-inset-bottom, 0px) + 60px)!important}@media (min-width:769px){.mobile-floating-hub{display:none!important}}.floating-hub-actions{position:relative;display:flex;flex-direction:column-reverse;align-items:flex-end;gap:10px;pointer-events:auto}.floating-hub-avatar-btn{width:50px;height:50px;border-radius:50%;background:var(--card,#121824);border:2px solid var(--border-color,hsla(0,0%,100%,.16));box-shadow:0 8px 24px rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;position:relative;cursor:-webkit-grab;cursor:grab;touch-action:none!important;-webkit-touch-callout:none!important;-moz-user-select:none!important;user-select:none!important;-webkit-user-select:none!important;-webkit-user-drag:none!important;padding:0;outline:none;transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .2s ease,border-color .2s ease}.floating-hub-avatar-btn:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.55)}.floating-hub-avatar-btn *{pointer-events:none!important;-webkit-touch-callout:none!important;-moz-user-select:none!important;user-select:none!important;-webkit-user-select:none!important;-webkit-user-drag:none!important}.floating-hub-avatar-btn:active{transform:scale(.92)}.floating-hub-avatar-btn.is-open{border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.25),0 8px 24px rgba(0,0,0,.5)}.floating-avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block;pointer-events:none!important;-webkit-touch-callout:none!important;-webkit-user-select:none!important;-webkit-user-drag:none!important;-moz-user-select:none!important;user-select:none!important;touch-action:none!important}.floating-avatar-initials{background:#1e3a8a;color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;font-family:inherit}.floating-avatar-guest,.floating-avatar-initials{width:100%;height:100%;border-radius:50%;display:flex;align-items:center;justify-content:center}.floating-avatar-guest{color:var(--text,#e2e8f0);font-size:18px}.floating-online-dot{position:absolute;bottom:0;right:0;width:12px;height:12px;background:#10b981;border:2px solid var(--card,#121824);border-radius:50%}.floating-hub-popout{position:absolute;bottom:calc(100% + 12px);right:0;width:280px;background:var(--card,#101722);border:1px solid var(--border-color,hsla(0,0%,100%,.12));border-radius:16px;box-shadow:0 16px 40px rgba(0,0,0,.5);padding:12px;display:flex;flex-direction:column;gap:8px;z-index:1000001;pointer-events:auto;animation:hubCardSlideUp .18s cubic-bezier(.16,1,.3,1);max-height:80vh;overflow-y:auto}@keyframes hubCardSlideUp{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.floating-hub-header{display:flex;align-items:center;gap:10px;padding:4px 6px 10px;border-bottom:1px solid var(--border-color,hsla(0,0%,100%,.08))}.floating-hub-header-avatar{width:38px;height:38px;border-radius:50%;background:hsla(0,0%,100%,.06);display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden;font-size:17px;color:var(--text,#cbd5e1)}.floating-hub-header-avatar img{width:100%;height:100%;object-fit:cover}.floating-hub-header-info{display:flex;flex-direction:column;min-width:0;flex:1 1}.floating-hub-name{font-size:13.5px;font-weight:700;color:var(--text,#f8fafc)}.floating-hub-name,.floating-hub-sub{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3}.floating-hub-sub{font-size:11.5px;color:var(--muted,#94a3b8)}.floating-hub-links{display:flex;flex-direction:column;gap:2px}.floating-hub-link{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;color:var(--text,#f1f5f9);text-decoration:none;background:transparent;border:none;font-family:inherit;text-align:left;cursor:pointer;transition:background .15s ease;width:100%}.floating-hub-link:active,.floating-hub-link:hover{background:hsla(0,0%,100%,.06)}.floating-hub-link-icon{width:32px;height:32px;border-radius:8px;background:hsla(0,0%,100%,.05);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text,#cbd5e1);flex-shrink:0}.floating-hub-link-text{display:flex;flex-direction:column;flex:1 1;min-width:0}.floating-hub-link-title{font-size:12.5px;font-weight:600;color:var(--text,#f8fafc);line-height:1.3}.floating-hub-link-desc{font-size:10.5px;color:var(--muted,#94a3b8);line-height:1.2}.floating-hub-footer{padding-top:6px;border-top:1px solid var(--border-color,hsla(0,0%,100%,.08));margin-top:2px}.floating-hub-signout-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:9px 12px;border-radius:10px;background:var(--bg,#0b111a);color:var(--text,#e2e8f0);border:1px solid var(--border-color,hsla(0,0%,100%,.12));font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .15s ease,border-color .15s ease,color .15s ease}.floating-hub-signout-btn:active,.floating-hub-signout-btn:hover{background:hsla(0,0%,100%,.08);color:#fff;border-color:hsla(0,0%,100%,.22)}.floating-hub-login-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:9px 12px;border-radius:10px;background:#1e3a8a;color:#fff!important;text-decoration:none;font-size:12.5px;font-weight:700;cursor:pointer;border:1px solid hsla(0,0%,100%,.12);box-shadow:0 4px 12px rgba(0,0,0,.2);transition:background .15s ease,opacity .15s ease}.floating-hub-login-btn:active,.floating-hub-login-btn:hover{background:#2563eb;color:#fff!important}.floating-hub-backdrop{position:fixed;inset:0;z-index:999990;background:transparent;pointer-events:auto}.in-app-chat-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:1000005;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:flex-end;animation:chatOverlayFadeIn .2s ease-out}@keyframes chatOverlayFadeIn{0%{opacity:0}to{opacity:1}}.in-app-chat-sheet{background:var(--card,#0f1724);border:1px solid var(--border-color,hsla(0,0%,100%,.14));display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.6);animation:chatSheetSlideIn .24s cubic-bezier(.16,1,.3,1)}@media (max-width:768px){.in-app-chat-sheet{width:100%;height:86vh;max-height:86vh;border-radius:20px 20px 0 0;border-bottom:none}}@media (min-width:769px){.in-app-chat-sheet{position:fixed;bottom:80px;right:24px;width:420px;height:620px;max-height:calc(100vh - 100px);border-radius:18px}}@keyframes chatSheetSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.in-app-chat-header{height:50px;background:hsla(0,0%,100%,.03);border-bottom:1px solid var(--border-color,hsla(0,0%,100%,.08));display:flex;align-items:center;justify-content:space-between;padding:0 16px;flex-shrink:0}.in-app-chat-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--text,#f8fafc)}.chat-live-dot{width:8px;height:8px;border-radius:50%;background:#10b981;box-shadow:0 0 8px rgba(16,185,129,.6)}.chat-semester-tag{font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;background:rgba(59,130,246,.2);color:#38bdf8;border:1px solid rgba(59,130,246,.3)}.in-app-chat-actions{display:flex;align-items:center;gap:8px}.chat-action-btn{width:32px;height:32px;border-radius:8px;background:hsla(0,0%,100%,.06);border:1px solid hsla(0,0%,100%,.08);color:var(--text,#e2e8f0);display:flex;align-items:center;justify-content:center;cursor:pointer;text-decoration:none;font-size:13px;transition:background .15s ease,color .15s ease}.chat-action-btn:hover{background:hsla(0,0%,100%,.12);color:#fff}.chat-close-btn:hover{background:rgba(239,68,68,.2);color:#ef4444}.in-app-chat-body{flex:1 1;min-height:0;display:flex;flex-direction:column;position:relative;width:100%;height:100%;background:var(--bg,#070d17)}.in-app-chat-iframe{flex:1 1;width:100%;height:100%;border:none;display:block}[data-theme=light] .floating-hub-avatar-btn,html:not(.dark) .floating-hub-avatar-btn{background:#fff;border-color:#cbd5e1;box-shadow:0 6px 20px rgba(15,23,42,.12)}[data-theme=light] .floating-hub-popout,html:not(.dark) .floating-hub-popout{background:#fff;border-color:#e2e8f0;box-shadow:0 16px 40px rgba(15,23,42,.14)}[data-theme=light] .floating-hub-header,html:not(.dark) .floating-hub-header{border-bottom-color:#e2e8f0}[data-theme=light] .floating-hub-name,html:not(.dark) .floating-hub-name{color:#0f172a}[data-theme=light] .floating-hub-sub,html:not(.dark) .floating-hub-sub{color:#64748b}[data-theme=light] .floating-hub-link,html:not(.dark) .floating-hub-link{color:#1e293b}[data-theme=light] .floating-hub-link:active,[data-theme=light] .floating-hub-link:hover,html:not(.dark) .floating-hub-link:active,html:not(.dark) .floating-hub-link:hover{background:#f1f5f9}[data-theme=light] .floating-hub-link-icon,html:not(.dark) .floating-hub-link-icon{background:#f1f5f9;border:1px solid #e2e8f0;color:#2563eb}[data-theme=light] .floating-hub-link-title,html:not(.dark) .floating-hub-link-title{color:#0f172a}[data-theme=light] .floating-hub-link-desc,html:not(.dark) .floating-hub-link-desc{color:#64748b}[data-theme=light] .floating-hub-signout-btn,html:not(.dark) .floating-hub-signout-btn{background:#f8fafc;border-color:#e2e8f0;color:#334155}[data-theme=light] .floating-hub-signout-btn:hover,html:not(.dark) .floating-hub-signout-btn:hover{background:#f1f5f9;color:#0f172a;border-color:#cbd5e1}[data-theme=light] .floating-avatar-guest,html:not(.dark) .floating-avatar-guest{color:#334155}[data-theme=light] .in-app-chat-sheet,html:not(.dark) .in-app-chat-sheet{background:#fff;border-color:#e2e8f0;box-shadow:0 24px 60px rgba(15,23,42,.2)}[data-theme=light] .in-app-chat-header,html:not(.dark) .in-app-chat-header{background:#f8fafc;border-bottom-color:#e2e8f0}[data-theme=light] .in-app-chat-title,html:not(.dark) .in-app-chat-title{color:#0f172a}[data-theme=light] .chat-action-btn,html:not(.dark) .chat-action-btn{background:#f1f5f9;border-color:#e2e8f0;color:#475569}[data-theme=light] .chat-action-btn:hover,html:not(.dark) .chat-action-btn:hover{background:#e2e8f0;color:#0f172a}.mobile-floating-hub.is-dragging{cursor:-webkit-grabbing!important;cursor:grabbing!important;touch-action:none;-moz-user-select:none;user-select:none;-webkit-user-select:none}.mobile-floating-hub.is-dragging .floating-hub-avatar-btn{box-shadow:0 16px 36px rgba(0,0,0,.65),0 0 16px rgba(59,130,246,.45);border-color:rgba(59,130,246,.8)}.floating-hub-popout.flip-x{right:auto!important;left:0!important}.floating-hub-popout.flip-y{bottom:auto!important;top:calc(100% + 12px)!important}.floating-reset-dock-btn{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;font-size:.72rem;font-weight:600;color:#3b82f6;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.25);border-radius:9999px;cursor:pointer;transition:all .15s ease}.floating-reset-dock-btn:hover{background:rgba(59,130,246,.2);border-color:rgba(59,130,246,.4)}.floating-dismiss-zone{position:fixed;bottom:calc(24px + env(safe-area-inset-bottom, 0px));left:50%;transform:translateX(-50%) translateY(0);z-index:10000000;display:flex;align-items:center;gap:8px;padding:10px 18px;border-radius:9999px;background:rgba(15,23,42,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1.5px dashed hsla(0,0%,100%,.32);box-shadow:0 10px 30px rgba(0,0,0,.5);color:#cbd5e1;font-family:inherit;font-size:.82rem;font-weight:600;letter-spacing:.01em;pointer-events:none;animation:dismissZonePop .22s cubic-bezier(.16,1,.3,1);transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease}.floating-dismiss-zone.is-over{transform:translateX(-50%) scale(1.12);background:rgba(220,38,38,.95);border:2px solid #ef4444;color:#fff;box-shadow:0 14px 35px rgba(239,68,68,.55),0 0 20px rgba(239,68,68,.4)}.dismiss-zone-icon{display:flex;align-items:center;justify-content:center;transition:transform .18s ease}.floating-dismiss-zone.is-over .dismiss-zone-icon{transform:rotate(12deg) scale(1.15)}@keyframes dismissZonePop{0%{opacity:0;transform:translateX(-50%) translateY(20px) scale(.9)}to{opacity:1;transform:translateX(-50%) translateY(0) scale(1)}}