:root{--primary-hue: 245;--primary-sat: 82%;--primary-light: 64%;--primary: hsl(var(--primary-hue), var(--primary-sat), var(--primary-light));--primary-hover: hsl(var(--primary-hue), var(--primary-sat), 55%);--primary-glow: hsla(var(--primary-hue), var(--primary-sat), var(--primary-light), .15);--primary-glow-heavy: hsla(var(--primary-hue), var(--primary-sat), var(--primary-light), .35);--accent: hsl(192, 95%, 48%);--accent-hover: hsl(192, 95%, 40%);--accent-glow: hsla(192, 95%, 48%, .15);--bg-app: radial-gradient(circle at 100% 0%, #edf2f9 0%, #f4f6fc 50%, #ffffff 100%);--bg-card: rgba(255, 255, 255, .65);--bg-sidebar: #f8fafc;--bg-elevated: #ffffff;--bg-input: #ffffff;--border-color: #e2e8f0;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--card-shadow: 0 10px 30px -5px rgba(99, 102, 241, .04), 0 4px 12px -2px rgba(0, 0, 0, .02);--hover-shadow: 0 20px 40px -8px rgba(99, 102, 241, .12), 0 8px 20px -4px rgba(0, 0, 0, .04);--font-ui: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Fira Code", "Courier New", monospace;--border-radius-lg: 16px;--border-radius-md: 12px;--border-radius-sm: 8px;color-scheme:light}[data-theme=dark]{--bg-app: radial-gradient(circle at 80% 0%, #0d0f1a 0%, #07080f 60%, #030407 100%);--bg-card: rgba(13, 16, 28, .55);--bg-sidebar: #06070a;--bg-elevated: #111827;--bg-input: #0d1117;--border-color: #1e2538;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #4e5a70;--card-shadow: 0 12px 36px -8px rgba(0, 0, 0, .6), 0 4px 16px -2px rgba(99, 102, 241, .01);--hover-shadow: 0 24px 48px -10px rgba(0, 0, 0, .7), 0 8px 24px -4px rgba(99, 102, 241, .08);color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0;font-family:var(--font-ui)}body{background:var(--bg-app);color:var(--text-primary);min-height:100vh;overflow-x:hidden;transition:background .4s cubic-bezier(.16,1,.3,1);background-attachment:fixed}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}#root{min-height:100vh;display:flex;width:100%}button,input,textarea,select{font-family:var(--font-ui);outline:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes pulse-glow{0%,to{transform:scale(1);opacity:.8}50%{transform:scale(1.03);opacity:1;filter:drop-shadow(0 0 15px rgba(6,182,212,.4))}}@keyframes floating-blob{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-50px) scale(1.15)}66%{transform:translate(-20px,20px) scale(.9)}}.fade-in{animation:fadeIn .45s cubic-bezier(.16,1,.3,1) forwards}.auth-wrapper{min-height:100vh;width:100vw;display:grid;grid-template-columns:1.15fr 1fr;background:linear-gradient(135deg,#f0f4ff,#e0e7ff);overflow:hidden}@media (max-width: 1024px){.auth-wrapper{grid-template-columns:1fr;background:#eef2ff}.auth-visual-side{display:none!important}}.auth-visual-side{background:linear-gradient(135deg,#f3f4f6,#e0e7ff);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:60px;position:relative;overflow:hidden;border-right:1px solid rgba(0,0,0,.05)}.auth-robot-image{max-width:360px;width:100%;height:auto;object-fit:contain;margin-bottom:24px}.auth-visual-text-block{text-align:left;max-width:440px;width:100%;display:flex;flex-direction:column;align-items:flex-start}.auth-badge{display:inline-block;background:#e0e7ff;color:#4f46e5;padding:6px 14px;border-radius:99px;font-weight:700;font-size:.82rem;margin-bottom:16px;letter-spacing:.3px;border:1px solid rgba(79,70,229,.15)}.auth-visual-title-main{font-size:3.2rem;font-weight:900;color:#1e1b4b;margin:0 0 12px;line-height:1.15;letter-spacing:-1px}.auth-visual-desc-main{font-size:.98rem;color:#475569;line-height:1.6;margin:0}.auth-form-side{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:40px;background:linear-gradient(135deg,#f8fafc,#eef2ff);position:relative}.auth-card{width:100%;max-width:460px;display:flex;flex-direction:column;background:#fff;border:1px solid rgba(255,255,255,.8);border-radius:28px;padding:48px;box-shadow:0 20px 40px #00000008,0 1px 3px #00000003}.auth-header{margin-bottom:24px}.auth-title{font-size:2.1rem;font-weight:800;letter-spacing:-.5px;margin-bottom:6px;color:#1e1b4b}.auth-subtitle{color:#64748b;font-size:.9rem;line-height:1.4}.form-group{margin-bottom:20px;display:flex;flex-direction:column;width:100%}.form-label{font-size:.85rem;font-weight:700;color:var(--text-secondary);margin-bottom:8px}.form-input{width:100%;padding:10px 14px;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--text-primary);font-size:.92rem;transition:all .25s cubic-bezier(.16,1,.3,1);box-sizing:border-box;box-shadow:inset 0 1px 2px #00000005}.form-input::placeholder{color:var(--text-muted)}.form-input:hover{border-color:var(--text-muted)}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);background:var(--bg-card)}select.form-input{appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;cursor:pointer}[data-theme=dark] select.form-input{appearance:none;-webkit-appearance:none;-moz-appearance:none;background-color:var(--bg-input);color:var(--text-primary);background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;border-color:var(--border-color)}[data-theme=dark] select.form-input option{background-color:#111827;color:#f8fafc}[data-theme=dark] .form-input{background:var(--bg-input);color:var(--text-primary);border-color:var(--border-color)}[data-theme=dark] .form-input:focus{background:var(--bg-input)}.input-with-icon{position:relative;width:100%}.auth-input-icon{display:none}.auth-input-icon svg{width:100%;height:100%}.password-toggle-btn{position:absolute;right:16px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#94a3b8;padding:0;display:flex;align-items:center;justify-content:center;width:20px;height:20px;transition:color .2s}.password-toggle-btn:hover{color:#4f46e5}.password-toggle-btn svg{width:20px;height:20px}.auth-wrapper .form-input{width:100%;padding:14px 16px;border-radius:12px;border:1px solid #e2e8f0;background:#fff;color:#0f172a;font-size:.95rem;transition:all .25s ease}.auth-wrapper .form-input::placeholder{color:#94a3b8}.auth-wrapper .form-input:focus{border-color:#3e4ef2;background:#fff;box-shadow:0 0 0 4px #3e4ef21a}.strength-bar-wrapper{display:flex;flex-direction:column;gap:6px;margin-top:8px}.strength-meter-slots{display:flex;gap:6px;height:4px;width:100%}.strength-meter-slot{flex:1;background-color:#e2e8f0;border-radius:2px;transition:background-color .3s ease}.strength-meter-slots.weak .strength-meter-slot:nth-child(1){background-color:#ef4444}.strength-meter-slots.medium .strength-meter-slot:nth-child(1),.strength-meter-slots.medium .strength-meter-slot:nth-child(2){background-color:#f59e0b}.strength-meter-slots.strong .strength-meter-slot{background-color:#10b981}.password-strength-text{font-size:.8rem;font-weight:600;color:#64748b;transition:color .3s ease}.password-strength-text.weak{color:#ef4444}.password-strength-text.medium{color:#f59e0b}.password-strength-text.strong{color:#10b981}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 26px;border-radius:var(--border-radius-md);font-weight:700;font-size:.95rem;border:none;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);gap:10px}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,hsl(var(--primary-hue),var(--primary-sat),50%) 100%);color:#fff;box-shadow:0 4px 20px #5a5df84d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px #5a5df873}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--border-color)}.auth-wrapper .btn-primary{background:#3e4ef2;color:#fff;box-shadow:0 4px 14px #3e4ef233;width:100%;border-radius:14px;padding:16px 26px;font-size:1rem}.auth-wrapper .btn-primary:hover{background:#2b44e7;box-shadow:0 6px 20px #3e4ef259;transform:translateY(-1px)}.auth-wrapper .btn-secondary{background:#fff;color:#3e4ef2;border:1.5px solid #e0e7ff;width:100%;border-radius:14px;padding:15px 26px;font-size:1rem;font-weight:700}.auth-wrapper .btn-secondary:hover{background:#3e4ef208;border-color:#3e4ef2;color:#2b44e7}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}.auth-divider{display:flex;align-items:center;justify-content:center;width:100%;margin:24px 0;color:#94a3b8;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-bottom:1px solid #e2e8f0}.auth-divider:not(:empty):before{margin-right:16px}.auth-divider:not(:empty):after{margin-left:16px}.auth-footer-note{display:flex;align-items:center;justify-content:center;gap:6px;font-size:.8rem;color:#64748b;margin-top:24px;font-weight:600;text-align:center;width:100%}.auth-footer-note .shield-icon{width:15px;height:15px;color:#10b981}.dashboard-layout{display:flex;width:100vw;height:100vh;overflow:hidden}.sidebar{width:260px;background:#fff;border-right:1px solid #f0f0f5;display:flex;flex-direction:column;padding:24px 16px 20px;flex-shrink:0;animation:slideIn .3s cubic-bezier(.16,1,.3,1) forwards;overflow-y:auto}[data-theme=dark] .sidebar{background:#0f1117;border-right-color:#ffffff0f}.sidebar-logo{display:flex;align-items:center;gap:10px;margin-bottom:20px;padding:0 4px}.sidebar-logo-icon{font-size:1.6rem}.sidebar-logo-text{font-weight:800;font-size:1.15rem;color:#4f46e5}[data-theme=dark] .sidebar-logo-text{color:#818cf8}.sidebar-new-chat-btn{display:flex;align-items:center;gap:8px;width:100%;padding:12px 16px;border-radius:12px;border:none;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;font-weight:700;font-size:.93rem;cursor:pointer;margin-bottom:20px;transition:all .2s ease;box-shadow:0 4px 14px #6366f14d}.sidebar-new-chat-btn svg{width:18px;height:18px;flex-shrink:0}.sidebar-new-chat-sparkle{margin-left:auto}.sidebar-new-chat-btn:hover{background:linear-gradient(135deg,#4f46e5,#4338ca);transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.sidebar-menu{display:flex;flex-direction:column;gap:2px}.sidebar-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:#64748b;font-weight:600;font-size:.92rem;cursor:pointer;transition:all .18s ease;border:none;background:transparent;text-align:left;width:100%}.sidebar-item-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px;flex-shrink:0}.sidebar-item-icon svg{width:20px;height:20px}.sidebar-item:hover{background:#f5f3ff;color:#4f46e5}.sidebar-item.active{background:#ede9fe;color:#4f46e5}[data-theme=dark] .sidebar-item{color:#94a3b8}[data-theme=dark] .sidebar-item:hover{background:#6366f11f;color:#818cf8}[data-theme=dark] .sidebar-item.active{background:#6366f126;color:#818cf8}.sidebar-recents{margin-top:20px;display:flex;flex-direction:column;gap:2px}.sidebar-recents-label{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:700;color:#94a3b8;text-transform:uppercase;letter-spacing:.5px;padding:0 6px;margin-bottom:6px}.sidebar-recents-label svg{width:14px;height:14px}.sidebar-recent-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;cursor:pointer;transition:background .18s;position:relative}.sidebar-recent-item:hover{background:#f5f3ff}.sidebar-recent-item.active{background:#ede9fe}[data-theme=dark] .sidebar-recent-item:hover{background:#6366f11a}.sidebar-recent-icon{display:flex;align-items:center;color:#94a3b8;flex-shrink:0}.sidebar-recent-icon svg{width:15px;height:15px}.sidebar-recent-title{flex:1;font-size:.84rem;color:#374151;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}[data-theme=dark] .sidebar-recent-title{color:#cbd5e1}.sidebar-recent-time{font-size:.72rem;color:#94a3b8;white-space:nowrap;flex-shrink:0}.sidebar-view-all-btn{display:flex;align-items:center;gap:4px;padding:8px 10px;border:none;background:none;cursor:pointer;color:#6366f1;font-size:.84rem;font-weight:700;transition:color .18s}.sidebar-view-all-btn svg{width:14px;height:14px}.sidebar-view-all-btn:hover{color:#4f46e5}.sidebar-user{margin-top:auto;padding-top:16px;border-top:1px solid #f0f0f5;display:flex;flex-direction:column;gap:4px}[data-theme=dark] .sidebar-user{border-top-color:#ffffff0f}.user-profile-card{display:flex;align-items:center;gap:10px;padding:10px;border-radius:10px;cursor:pointer;transition:background .18s;margin-bottom:4px}.user-profile-card:hover{background:#f5f3ff}[data-theme=dark] .user-profile-card:hover{background:#6366f11a}.user-avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;flex-shrink:0}.user-info{display:flex;flex-direction:column;overflow:hidden;flex:1}.user-name{font-weight:700;font-size:.85rem;color:#1e293b;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.user-email{font-size:.72rem;color:#94a3b8;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}[data-theme=dark] .user-name{color:#e2e8f0}.user-profile-chevron{color:#94a3b8;display:flex;align-items:center;flex-shrink:0}.user-profile-chevron svg{width:16px;height:16px}.sidebar-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px}.sidebar-toggle-label{display:flex;align-items:center;gap:8px;font-size:.88rem;font-weight:600;color:#374151}[data-theme=dark] .sidebar-toggle-label{color:#cbd5e1}.sidebar-toggle-label svg{width:17px;height:17px;color:#6b7280}.sidebar-toggle-switch{position:relative;width:38px;height:22px;border-radius:99px;border:none;background:#e2e8f0;cursor:pointer;transition:background .25s ease;padding:0;flex-shrink:0}.sidebar-toggle-switch.on{background:#6366f1}.sidebar-toggle-knob{position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .25s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 4px #0003;display:block}.sidebar-toggle-switch.on .sidebar-toggle-knob{transform:translate(16px)}.sidebar-logout-btn{display:flex;align-items:center;gap:10px;padding:10px;border:none;background:none;cursor:pointer;color:#ef4444;font-size:.88rem;font-weight:700;border-radius:8px;width:100%;transition:background .18s}.sidebar-logout-btn svg{width:17px;height:17px}.sidebar-logout-btn:hover{background:#fef2f2}[data-theme=dark] .sidebar-logout-btn:hover{background:#ef44441a}.sidebar-chat-delete-btn{background:transparent;border:none;color:#94a3b8;cursor:pointer;font-size:1rem;opacity:0;transition:opacity .15s,color .15s;line-height:1;padding:0 2px}.sidebar-recent-item:hover .sidebar-chat-delete-btn{opacity:1}.workspace{flex-grow:1;height:100vh;overflow:hidden;display:flex;flex-direction:column;position:relative;padding:0}.scrollable-page{flex-grow:1;overflow-y:auto;padding:40px;height:100%;display:flex;flex-direction:column}@media (max-width: 768px){.scrollable-page{padding:24px}}.page-header{margin-bottom:32px;display:flex;align-items:center;justify-content:space-between}.page-title{font-size:2.2rem;font-weight:800;letter-spacing:-.75px}.page-title-gradient{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.page-subtitle{color:var(--text-secondary);font-size:1rem;margin-top:4px}.glass-card{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;padding:24px;box-shadow:var(--card-shadow);transition:all .3s cubic-bezier(.4,0,.2,1)}.glass-card-hover:hover{transform:translateY(-4px);box-shadow:var(--hover-shadow);border-color:var(--primary)}[data-theme=dark] .glass-card{background:#0d101cd9;border-color:var(--border-color);color:var(--text-primary)}[data-theme=dark] .glass-card h1,[data-theme=dark] .glass-card h2,[data-theme=dark] .glass-card h3,[data-theme=dark] .glass-card h4,[data-theme=dark] .glass-card p,[data-theme=dark] .glass-card label,[data-theme=dark] .glass-card span:not(.page-title-gradient){color:inherit}.notebook-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-bottom:40px}.notebook-card-border{border-left:5px solid var(--primary)}.notebook-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.notebook-title{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin-right:8px}.notebook-desc{font-size:.9rem;color:var(--text-secondary);margin-bottom:20px;line-height:1.5;height:40px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.notebook-meta{display:flex;flex-direction:column;gap:4px;font-size:.82rem;color:var(--text-muted);margin-bottom:16px}.notebook-footer{display:flex;gap:10px}.notebook-fav-btn{background:transparent;border:none;font-size:1.25rem;cursor:pointer;color:#e2e8f0;padding:4px}.notebook-fav-btn.active{color:#f59e0b}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0f172a80;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.modal-content{width:100%;max-width:520px;background-color:var(--bg-sidebar);border-radius:16px;border:1px solid var(--border-color);padding:32px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.modal-title{font-size:1.5rem;font-weight:800;margin-bottom:24px;color:var(--text-primary)}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:32px}.tag-input-container{display:flex;flex-wrap:wrap;gap:8px;padding:8px;border:1px solid var(--border-color);border-radius:10px;background:var(--bg-sidebar)}.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background-color:var(--primary-glow);color:var(--primary);border-radius:6px;font-size:.85rem;font-weight:600}.tag-remove{cursor:pointer;font-size:.75rem}.color-option{width:28px;height:28px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:transform .2s ease}.color-option:hover{transform:scale(1.15)}.color-option.selected{border-color:var(--text-primary);transform:scale(1.1)}.tabs-header{display:flex;border-bottom:1px solid var(--border-color);margin-bottom:28px;gap:24px}.tab-button{background:transparent;border:none;border-bottom:2px solid transparent;padding:12px 4px;font-weight:700;font-size:1.05rem;color:var(--text-secondary);cursor:pointer;transition:all .2s ease}.tab-button:hover{color:var(--text-primary)}.tab-button.active{color:var(--primary);border-bottom-color:var(--primary)}.dropzone{border:2px dashed var(--border-color);border-radius:16px;padding:40px;text-align:center;cursor:pointer;background:var(--bg-card);transition:all .2s ease;margin-bottom:24px}.dropzone:hover,.dropzone.active{border-color:var(--primary);background:var(--primary-glow)}.dropzone-icon{font-size:3rem;margin-bottom:16px;color:var(--text-muted)}.document-item{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border-color)}.document-info{display:flex;align-items:center;gap:16px}.document-icon{font-size:1.8rem}.document-name{font-weight:700;color:var(--text-primary)}.document-date{font-size:.8rem;color:var(--text-secondary)}.document-actions{display:flex;gap:8px}.chat-page-container{display:flex;flex-direction:column;height:100vh;min-height:0;gap:0;padding:24px 32px}@media (max-width: 768px){.chat-page-container{padding:16px}}.chat-header-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 0 16px;border-bottom:1px solid var(--border-color);margin-bottom:16px;flex-shrink:0}.chat-header-left{display:flex;align-items:center;gap:12px}.chat-header-icon{font-size:1.8rem}.chat-header-title{font-size:1.35rem;font-weight:850;margin:0;background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 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var(--primary-glow)}.mode-title{font-weight:700;font-size:.9rem;margin-bottom:4px}.mode-desc{font-size:.75rem;opacity:.8}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:32px}.stat-value{font-size:2.25rem;font-weight:800;margin-top:8px;color:var(--text-primary)}.stat-label{font-size:.85rem;font-weight:600;color:var(--text-secondary)}.styled-table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.95rem;text-align:left}.styled-table th{background-color:var(--border-color);color:var(--text-primary);padding:14px 18px;font-weight:700}.styled-table td{padding:14px 18px;border-bottom:1px solid var(--border-color);color:var(--text-secondary)}.styled-table tr:hover{background-color:var(--primary-glow)}.document-viewer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:var(--bg-sidebar);display:flex;flex-direction:column;z-index:2000;animation:fadeIn .3s cubic-bezier(.16,1,.3,1)}.doc-viewer-header{padding:20px 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h2{color:#818cf8}.doc-table{width:100%;border-collapse:collapse;margin:24px 0}.doc-table th,.doc-table td{border:1px solid #e2e8f0;padding:12px}.doc-table th{background-color:#f1f5f9;font-weight:600}.pdf-iframe{width:100%;height:calc(100vh - 120px);border:none;border-radius:8px}.text-viewer-pre{background:#f8fafc;color:#0f172a;padding:24px;border-radius:8px;font-family:var(--font-mono);font-size:.9rem;line-height:1.5;white-space:pre-wrap;border:1px solid var(--border-color);max-width:900px;margin:0 auto}.spinner{width:32px;height:32px;border:4px solid var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.toast-box{position:fixed;bottom:24px;right:24px;background-color:var(--bg-sidebar);border:1px solid var(--border-color);padding:16px 24px;border-radius:12px;box-shadow:0 10px 25px -5px #0000001a;z-index:3000;display:flex;align-items:center;gap:12px;font-weight:600;animation:fadeIn .2s cubic-bezier(.16,1,.3,1) forwards}.toast-box.success{border-left:5px solid #10b981}.toast-box.error{border-left:5px solid #ef4444}.sidebar-chats-container{margin:12px 0;padding-left:8px;display:flex;flex-direction:column;gap:4px;max-height:250px;overflow-y:auto;border-left:1px solid var(--border-color)}.sidebar-chat-link{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;border-radius:8px;font-size:.85rem;cursor:pointer;color:var(--text-secondary)!important;transition:all .2s ease}.sidebar-chat-link:hover{background-color:var(--border-color);color:var(--text-primary)!important;border-radius:8px}.sidebar-chat-link.active{background-color:var(--primary-glow);color:var(--primary)!important;font-weight:600}.sidebar-chat-delete-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:.75rem;opacity:0;transition:opacity .2s ease}.sidebar-chat-link:hover .sidebar-chat-delete-btn{opacity:1}.sidebar-chat-delete-btn:hover{color:#ef4444}.chat-control-panel-horizontal{width:100%;background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);padding:16px 20px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--card-shadow)}.sidebar-toggle-mobile{display:none;background:transparent;border:none;cursor:pointer;color:var(--text-primary);padding:8px;margin-right:8px;border-radius:8px;align-items:center;justify-content:center;transition:background .2s ease,transform .15s ease}.sidebar-toggle-mobile:hover{background-color:var(--primary-glow)}.sidebar-toggle-mobile:active{transform:scale(.95)}.sidebar-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0f172a66;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;animation:fadeInOverlay .25s cubic-bezier(.16,1,.3,1) forwards}@keyframes fadeInOverlay{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@media (max-width: 768px){.sidebar-toggle-mobile{display:flex}.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:1000;width:280px;animation:none;transform:translate(-100%);transition:transform .3s cubic-bezier(.16,1,.3,1);box-shadow:0 0 24px #0000002e}.sidebar.open{transform:translate(0)}.workspace{width:100vw;height:100vh}.chat-header-bar{flex-direction:column;align-items:stretch;gap:12px;padding-bottom:12px}.chat-header-left{width:100%;justify-content:flex-start}.chat-header-center,.chat-header-right{width:100%;display:flex;justify-content:center}.rag-mode-picker{width:100%}.rag-mode-btn{min-width:0}.btn-toggle-indexer{width:100%;justify-content:center}.scrollable-page{padding:16px}.settings-grid{display:grid;grid-template-columns:1fr!important;gap:20px}.notebooks-filter-bar{flex-direction:column;align-items:stretch;gap:12px;padding:14px}.notebooks-filter-bar>div{width:100%;justify-content:space-between}.notebooks-filter-bar select{flex-grow:1;max-width:none}.tabs-header{overflow-x:auto;white-space:nowrap;gap:14px;padding-bottom:6px;border-bottom:1px solid var(--border-color);-webkit-overflow-scrolling:touch}.tabs-header::-webkit-scrollbar{height:4px}.tabs-header::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:2px}.tab-button{font-size:.92rem;padding:8px 2px}.dropzone{padding:24px 16px}.dropzone-icon{font-size:2.2rem;margin-bottom:10px}.dropzone h3{font-size:1.1rem}.document-item{flex-direction:column;align-items:stretch;gap:12px;padding:14px}.document-info{width:100%}.document-actions{width:100%;justify-content:flex-end;gap:8px}.document-actions button{flex:1;text-align:center;justify-content:center}.sources-sidebar{position:fixed;top:0;right:0;bottom:0;z-index:1001;width:310px;max-width:85vw;border-left:1px solid var(--border-color);box-shadow:-8px 0 32px #0003;animation:slideInRight .3s cubic-bezier(.16,1,.3,1) forwards}.doc-modal-file-grid{grid-template-columns:1fr!important}.doc-modal{padding:20px;gap:16px}.modal-content{padding:20px;max-width:calc(100vw - 32px)}.doc-viewer-header{padding:14px 16px;flex-direction:column;align-items:stretch;gap:10px}.doc-viewer-title-row{width:100%}.doc-viewer-title{font-size:1.2rem}.doc-viewer-content{padding:12px}.doc-viewer-paper{padding:24px 16px;min-height:auto}.pdf-iframe{height:calc(100vh - 150px)}}@media (max-width: 500px){.auth-form-side{padding:16px}.auth-card{padding:24px 18px;border-radius:20px}.auth-title{font-size:1.65rem}.url-upload-row{flex-direction:column;align-items:stretch;gap:8px}.url-upload-row input{width:100%}.url-upload-row button{width:100%;height:38px}}.auth-mobile-logo{display:none}@media (max-width: 1024px){.auth-mobile-logo{display:flex;align-items:center;gap:12px;margin-bottom:28px;justify-content:center;width:100%}.auth-mobile-logo img{width:48px;height:48px;object-fit:contain}.auth-mobile-logo h2{font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0}}