:root{--primary-50: #eff6ff;--primary-100: #dbeafe;--primary-200: #bfdbfe;--primary-300: #93c5fd;--primary-400: #60a5fa;--primary-500: #3b82f6;--primary-600: #2563eb;--primary-700: #1d4ed8;--primary-800: #1e40af;--primary-900: #1e3a8a;--primary-950: #172554;--accent-50: #fffbeb;--accent-100: #fef3c7;--accent-200: #fde68a;--accent-300: #fcd34d;--accent-400: #fbbf24;--accent-500: #f59e0b;--accent-600: #d97706;--accent-700: #b45309;--accent-800: #92400e;--accent-900: #78350f;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--gray-950: #030712;--success: #10b981;--success-light: #d1fae5;--warning: #f59e0b;--warning-light: #fef3c7;--error: #ef4444;--error-light: #fee2e2;--info: #3b82f6;--info-light: #dbeafe;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-dark: #0f172a;--bg-dark-secondary: #1e293b;--text-primary: #111827;--text-secondary: #4b5563;--text-muted: #9ca3af;--text-inverse: #ffffff;--border-light: #e5e7eb;--border-medium: #d1d5db;--border-dark: #374151;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--shadow-glow: 0 0 30px rgba(59, 130, 246, .3);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display: "Outfit", "Inter", sans-serif;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1)}:root.dark{--bg-primary: #0b101b;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #64748b;--border-light: #334155;--border-medium: #475569}:root.light{--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--text-primary: #111827;--text-secondary: #4b5563;--text-muted: #9ca3af;--border-light: #e5e7eb;--border-medium: #d1d5db}@media(prefers-color-scheme:dark){:root:not(.light){--bg-primary: #0b101b;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #64748b;--border-light: #334155;--border-medium: #475569}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);min-height:100vh}img,svg{display:block;max-width:100%}a{color:var(--primary-600);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-700)}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:600;line-height:1.25;color:var(--text-primary)}h1{font-size:3rem;letter-spacing:-.025em}h2{font-size:2.25rem;letter-spacing:-.02em}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}p{color:var(--text-secondary);margin-bottom:var(--space-4)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-family:var(--font-sans);font-size:.875rem;font-weight:500;line-height:1.5;border-radius:var(--radius-lg);border:none;cursor:pointer;transition:all var(--transition-base);text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);color:var(--text-inverse);box-shadow:var(--shadow-md),0 0 #3b82f666}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);transform:translateY(-2px);box-shadow:var(--shadow-lg),0 0 20px #3b82f64d}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-medium)}.btn-secondary:hover{background:var(--bg-tertiary);border-color:var(--primary-400)}.btn-accent{background:linear-gradient(135deg,var(--accent-500) 0%,var(--accent-600) 100%);color:var(--gray-900);font-weight:600}.btn-accent:hover{background:linear-gradient(135deg,var(--accent-400) 0%,var(--accent-500) 100%);transform:translateY(-2px)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:1rem}.input{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-sans);font-size:1rem;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-medium);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.input::placeholder{color:var(--text-muted)}.card{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-glass{background:#ffffffb3;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.3)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--space-4)}.section{padding:var(--space-20) 0}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.grid{display:grid;gap:var(--space-6)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.animate-fade-in-up{animation:fadeInUp .6s ease-out forwards}.animate-fade-in{animation:fadeIn .4s ease-out forwards}.animate-float{animation:float 3s ease-in-out infinite}.stagger-1{animation-delay:.1s}.stagger-2{animation-delay:.2s}.stagger-3{animation-delay:.3s}.stagger-4{animation-delay:.4s}.stagger-5{animation-delay:.5s}.gradient-primary{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-800) 100%)}.gradient-dark{background:linear-gradient(135deg,var(--gray-900) 0%,var(--gray-950) 100%)}.gradient-hero{background:linear-gradient(180deg,var(--bg-dark) 0%,var(--bg-dark-secondary) 50%,var(--primary-950) 100%)}.gradient-text{background:linear-gradient(135deg,var(--primary-400) 0%,var(--accent-400) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}html.light body{background-color:var(--bg-primary);color:var(--text-primary)}html.light .auth-page{background:linear-gradient(135deg,var(--primary-50) 0%,var(--gray-100) 100%)!important}html.light .logo{color:var(--text-primary)!important}html.light .logo:hover{color:var(--primary-600)!important}html.light .header-scrolled{background:#ffffffe6!important;border-bottom-color:#00000014!important}html.light .nav-link{color:var(--text-secondary)!important}html.light .nav-link:hover{color:var(--text-primary)!important;background:#0000000d!important}html.light .user-menu-trigger{color:var(--text-primary)!important;background:#00000008!important;border-color:#00000014!important}html.light .user-menu-trigger:hover{background:#0000000f!important}html.light .mobile-menu-btn{color:var(--text-primary)!important}html.light .nav.nav-open{background:#fffffff2!important;border-bottom:1px solid rgba(0,0,0,.08)!important}html.light .nav.nav-open .nav-link{color:var(--text-secondary)!important}html.light .chat-area{background:#f8fafc!important}html.light .chat-messages{background:#f8fafc}html.light .sidebar,html.light .sidebar-mini{background:#f1f5f9e6!important;border-right:1px solid rgba(0,0,0,.08)!important}html.light .sidebar-brand{border-bottom:1px solid rgba(0,0,0,.06)!important}html.light .sidebar-footer{border-top:1px solid rgba(0,0,0,.06)!important}html.light .profile-section{background:#00000008!important;border:1px solid rgba(0,0,0,.06)!important}html.light .profile-name{color:var(--text-primary)!important}html.light .settings-trigger:hover,html.light .settings-trigger.active{background:#0000000d!important;color:var(--text-primary)!important}html.light .settings-dropdown,html.light .upload-menu,html.light .mode-dropdown-menu{background:#fff!important;border:1px solid rgba(0,0,0,.1)!important;box-shadow:0 8px 24px #0000001a!important}html.light .settings-dropdown-item,html.light .upload-menu-item,html.light .mode-dropdown-item{color:var(--text-secondary)!important}html.light .settings-dropdown-item:hover,html.light .upload-menu-item:hover,html.light .mode-dropdown-item:hover{background:#0000000a!important}html.light .mode-item-label{color:var(--text-primary)!important}html.light .search-input{background:#0000000a!important;border:1px solid rgba(0,0,0,.08)!important;color:var(--text-primary)!important}html.light .search-input::placeholder{color:var(--text-muted)!important}html.light .history-item{color:var(--text-secondary)!important}html.light .history-item:hover{background:#0000000a!important}html.light .history-item.active{background:#00000014!important;color:var(--text-primary)!important}html.light .chat-area .chat-input-wrapper,html.light .chat-input-wrapper{background:#ffffffe6!important;border:1px solid rgba(0,0,0,.1)!important;box-shadow:0 8px 32px #00000014!important}html.light .chat-area .chat-input-wrapper:focus-within,html.light .chat-input-wrapper:focus-within{border-color:var(--primary-500)!important;background:#fff!important}html.light .chat-input{color:var(--text-primary)!important}html.light .send-btn{background:var(--primary-600)!important}html.light .send-btn svg{color:#fff!important}html.light .send-btn:hover:not(:disabled){background:var(--primary-700)!important}html.light .send-btn:disabled{background:#0000000f!important}html.light .send-btn:disabled svg{color:var(--text-muted)!important}html.light .chat-toggle-btn{background:#ffffffe6!important;border:1px solid rgba(0,0,0,.1)!important;color:var(--text-primary)!important}html.light .mode-dropdown-trigger,html.light .uploaded-file-chip{background:#0000000a!important;border:1px solid rgba(0,0,0,.08)!important;color:var(--text-secondary)!important}html.light .uploaded-file-chip{border-color:var(--success)!important;color:var(--success)!important}html.light .chat-message.assistant .message-bubble,html.light .message-text{color:var(--text-primary)!important}html.light .chat-message.user .message-bubble{background:var(--primary-600)!important;color:#fff!important}html.light .chat-message.user .message-bubble *{color:#fff!important}html.light .md-h1,html.light .md-h2,html.light .md-h3,html.light .md-h4,html.light .md-h5,html.light .md-h6{color:var(--text-primary)!important}html.light .md-h1{border-bottom:2px solid rgba(0,0,0,.08)!important}html.light .md-h2{border-bottom:1px solid rgba(0,0,0,.06)!important}html.light .md-li,html.light .md-li-num{color:var(--text-primary)!important}html.light .md-blockquote{background:#3b82f60a!important;color:var(--text-secondary)!important}html.light .md-table-wrapper{border:1px solid rgba(0,0,0,.08)!important;box-shadow:0 4px 20px #0000000d!important}html.light .md-table{background-color:#fff!important;color:var(--text-primary)!important}html.light .md-table th{background-color:#f1f5f9!important;color:var(--primary-700)!important;border-bottom:2px solid rgba(0,0,0,.08)!important}html.light .md-table td{border-bottom:1px solid rgba(0,0,0,.05)!important}html.light .md-table tbody tr:nth-child(2n){background-color:#00000005!important}html.light .md-table tbody tr:hover{background-color:#3b82f60a!important}html.light .code-block{background:#f8fafc!important;border:1px solid rgba(0,0,0,.08)!important;box-shadow:0 4px 12px #00000008!important}html.light .code-block code{color:#0f172a!important}html.light .inline-code{background:#0000000d!important;border:1px solid rgba(0,0,0,.08)!important;color:#2563eb!important}html.light .source-link{background:#fff!important;border:1px solid rgba(0,0,0,.08)!important}html.light .source-link:hover{background:#f1f5f9!important;border-color:var(--primary-400)!important}html.light .source-title{color:var(--text-primary)!important}html.light .reasoning-text{color:var(--text-secondary)!important}html.light .action-btn:hover{background:#0000000d!important;color:var(--text-primary)!important}html.light .welcome-subtitle{color:var(--text-secondary)!important}html.light .suggestion-chip{background:#00000008!important;border:1px solid rgba(0,0,0,.08)!important;color:var(--text-secondary)!important}html.light .suggestion-chip:hover{background:#0000000f!important;color:var(--text-primary)!important}html.light .chat-messages::-webkit-scrollbar-thumb,html.light .sidebar-content::-webkit-scrollbar-thumb{background:#00000026!important}html.light .chat-messages::-webkit-scrollbar-thumb:hover,html.light .sidebar-content::-webkit-scrollbar-thumb:hover{background:#00000040!important}.loading-screen{position:fixed;top:0;left:0;width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#0b101b;z-index:9999;gap:20px}.loading-spinner{width:60px;height:60px;border:3px solid rgba(59,130,246,.1);border-radius:50%;border-top-color:#3b82f6;border-right-color:#60a5fa;animation:spinner .8s cubic-bezier(.4,0,.2,1) infinite}.loading-text{font-family:var(--font-sans, sans-serif);font-size:14px;font-weight:500;color:#6b7280;letter-spacing:.5px}@keyframes spinner{to{transform:rotate(360deg)}}html.light .loading-screen{background:#fff}html.light .loading-spinner{border:3px solid rgba(37,99,235,.1);border-top-color:#2563eb;border-right-color:#3b82f6}html.light .loading-text{color:#94a3b8}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-family:var(--font-sans);font-weight:500;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-sm{padding:var(--space-1) var(--space-3);font-size:.8125rem}.btn-md{padding:var(--space-2) var(--space-4);font-size:.875rem}.btn-lg{padding:var(--space-3) var(--space-6);font-size:1rem}.btn-primary{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);color:#fff;box-shadow:0 1px 2px #0000001a}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-light)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--border-medium)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-secondary);color:var(--text-primary)}.btn-danger{background:linear-gradient(135deg,var(--error) 0%,#dc2626 100%);color:#fff}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#ef4444 0%,var(--error) 100%);transform:translateY(-1px);box-shadow:0 4px 12px #ef44444d}.btn-full{width:100%}.btn-loading{position:relative;color:transparent}.btn-spinner{position:absolute;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.input-group{margin-bottom:var(--space-4)}.input-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-primary);margin-bottom:var(--space-2)}.input-wrapper{position:relative;display:flex;align-items:center}.input-wrapper.has-icon .input{padding-left:42px}.input-wrapper.has-right-icon .input{padding-right:42px}.input{width:100%;padding:var(--space-3) var(--space-4);font-size:.9375rem;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);transition:all var(--transition-fast)}.input:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #3b82f61a}.input::placeholder{color:var(--text-tertiary)}.input.input-error{border-color:var(--error)}.input.input-error:focus{box-shadow:0 0 0 3px #ef44441a}.input-icon{position:absolute;left:12px;color:var(--text-tertiary);pointer-events:none}.input-right-icon{position:absolute;right:12px;padding:0;background:none;border:none;color:var(--text-tertiary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color var(--transition-fast)}.input-right-icon:hover{color:var(--text-secondary)}.input-error-message{display:block;font-size:.8125rem;color:var(--error);margin-top:var(--space-1)}.theme-toggle-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--border-medium);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;transition:all var(--transition-base);padding:0;flex-shrink:0}.theme-toggle-btn:hover{background:var(--bg-tertiary);border-color:var(--primary-400);transform:scale(1.05)}.theme-icon{transition:transform var(--transition-base)}.theme-toggle-btn:hover .theme-icon{transform:rotate(15deg)}html.light .theme-toggle-btn{border-color:#0000001a;background:#00000008;color:var(--text-primary)}html.light .theme-toggle-btn:hover{background:#0000000f;border-color:var(--primary-500)}body.dialog-open{overflow:hidden}.confirm-dialog-overlay{position:fixed;inset:0;z-index:9999;background:#0b101bbf;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;animation:confirmDialogFadeIn .2s cubic-bezier(.16,1,.3,1) forwards;padding:var(--space-4)}.confirm-dialog-overlay.intent-danger{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;left:0;transition:left .3s cubic-bezier(.4,0,.2,1)}@media(min-width:769px){body.sidebar-open .confirm-dialog-overlay.intent-danger{left:260px}body.sidebar-closed .confirm-dialog-overlay.intent-danger{left:60px}}body.delete-dialog-open .chat-area{filter:blur(6px) brightness(.35);transition:filter .2s ease}.confirm-dialog-container{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);width:100%;max-width:440px;padding:var(--space-6);box-shadow:var(--shadow-xl);transform:scale(.95) translateY(10px);animation:confirmDialogScaleUp .25s cubic-bezier(.34,1.56,.64,1) forwards;overflow:hidden}@keyframes confirmDialogFadeIn{0%{opacity:0}to{opacity:1}}@keyframes confirmDialogScaleUp{to{transform:scale(1) translateY(0)}}.confirm-dialog-header{display:flex;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4)}.confirm-dialog-icon-wrapper{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-lg);flex-shrink:0}.confirm-dialog-icon-wrapper.intent-primary{background:#3b82f626}.confirm-dialog-icon-wrapper.intent-primary .confirm-dialog-icon{color:var(--primary-500)}.confirm-dialog-btn-confirm.intent-primary{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);color:var(--text-inverse);box-shadow:0 4px 12px 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#f59e0b33}.confirm-dialog-btn-confirm.intent-warning:hover{background:linear-gradient(135deg,#fbbf24 0%,var(--warning) 100%);transform:translateY(-1px);box-shadow:0 6px 16px #f59e0b4d}.confirm-dialog-title{font-size:1.25rem;font-weight:600;color:var(--text-primary);font-family:var(--font-display);margin:0}.confirm-dialog-body{margin-bottom:var(--space-6)}.confirm-dialog-message{font-size:.95rem;color:var(--text-secondary);line-height:1.5;margin:0}.confirm-dialog-actions{display:flex;justify-content:flex-end;gap:var(--space-3)}.confirm-dialog-btn-cancel{border:1px solid var(--border-medium);background:var(--bg-primary);color:var(--text-secondary)}.confirm-dialog-btn-cancel:hover{background:var(--bg-secondary);color:var(--text-primary)}.confirm-dialog-btn-confirm{border:none;font-weight:500;cursor:pointer;transition:all var(--transition-base)}.rename-dialog-overlay{position:fixed;inset:0;z-index:9999;background:#0b101bbf;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;animation:renameDialogFadeIn .2s cubic-bezier(.16,1,.3,1) forwards;padding:var(--space-4)}.rename-dialog-container{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);width:100%;max-width:400px;padding:var(--space-6);box-shadow:var(--shadow-xl);transform:scale(.95) translateY(10px);animation:renameDialogScaleUp .25s cubic-bezier(.34,1.56,.64,1) forwards;overflow:hidden}@keyframes renameDialogFadeIn{0%{opacity:0}to{opacity:1}}@keyframes renameDialogScaleUp{to{transform:scale(1) translateY(0)}}.rename-dialog-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-5);position:relative}.rename-dialog-icon-wrapper{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);background:#3b82f626;color:var(--primary-500);flex-shrink:0}.rename-dialog-title{font-size:1.15rem;font-weight:600;color:var(--text-primary);font-family:var(--font-display);margin:0}.rename-dialog-close{position:absolute;right:0;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);cursor:pointer;padding:var(--space-1);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.rename-dialog-close:hover{color:var(--text-primary);background:var(--bg-secondary)}.rename-dialog-body{margin-bottom:var(--space-6)}.rename-dialog-input{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-sans);font-size:.95rem;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-medium);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.rename-dialog-input:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #3b82f61a}.rename-dialog-actions{display:flex;justify-content:flex-end;gap:var(--space-3)}.rename-dialog-btn-cancel{border:1px solid var(--border-medium);background:var(--bg-primary);color:var(--text-secondary)}.rename-dialog-btn-cancel:hover{background:var(--bg-secondary);color:var(--text-primary)}.rename-dialog-btn-save{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);color:var(--text-inverse);box-shadow:0 4px 12px #2563eb33;border:none}.rename-dialog-btn-save:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);transform:translateY(-1px);box-shadow:0 6px 16px #2563eb4d}.rename-dialog-btn-save:disabled{opacity:.6;cursor:not-allowed}.header{position:fixed;top:0;left:0;right:0;z-index:100;background:transparent;border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease}.header-scrolled{background:#0a0f19e6;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom-color:#ffffff14}.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px;gap:var(--space-6)}.logo{display:flex;align-items:center;gap:var(--space-2);font-family:var(--font-display);font-size:1.375rem;font-weight:700;color:#f0f6fc}.logo:hover{color:var(--primary-400)}.logo-icon{width:28px;height:28px;color:var(--accent-500)}.logo-img{width:32px;height:32px;border-radius:6px;object-fit:cover}.logo-text{background:linear-gradient(135deg,#fff,#60a5fa,#1d4ed8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;transition:background var(--transition-base)}html.light .logo-text{background:linear-gradient(135deg,var(--primary-800) 0%,var(--primary-500) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav{display:flex;align-items:center;gap:var(--space-1)}.nav-link{padding:var(--space-2) var(--space-4);font-size:.875rem;font-weight:500;color:#ffffffb3;border-radius:var(--radius-md);transition:all var(--transition-fast)}.nav-link:hover{color:#f0f6fc;background:#ffffff1a}.header-actions{display:flex;align-items:center;gap:var(--space-3)}.user-menu{position:relative}.user-menu-trigger{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);font-family:var(--font-sans);font-size:.875rem;font-weight:500;color:#f0f6fc;background:#ffffff1a;border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.user-menu-trigger:hover{background:#ffffff26}.user-menu-dropdown{position:absolute;top:calc(100% + var(--space-2));right:0;min-width:180px;background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-fast)}.user-menu:hover .user-menu-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);font-size:.875rem;color:var(--text-primary);background:none;border:none;width:100%;text-align:left;cursor:pointer;transition:background var(--transition-fast)}.dropdown-item:hover{background:var(--bg-secondary)}.dropdown-item.logout{color:var(--error);border-top:1px solid var(--border-light)}.mobile-menu-btn{display:none;padding:var(--space-2);background:none;border:none;color:#f0f6fc;cursor:pointer}@media(max-width:768px){.nav,.header-actions .btn-secondary{display:none}.mobile-menu-btn{display:flex}.logo-text{display:none}.logo-icon{width:24px;height:24px}.header-inner{height:48px}.nav.nav-open{display:flex;flex-direction:column;position:absolute;top:48px;left:0;right:0;padding:var(--space-4);background:#0a0f19f2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow-lg)}.nav.nav-open .nav-link{padding:var(--space-3) var(--space-4);text-align:center;color:#f0f6fc}}.footer{background:var(--bg-dark);color:var(--text-inverse);padding:var(--space-16) 0 var(--space-8)}.footer-grid{display:flex;justify-content:center;margin-bottom:var(--space-12)}.footer-brand{max-width:400px;text-align:center}.footer-logo{display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--text-inverse);margin-bottom:var(--space-4)}.footer-logo:hover{color:var(--primary-400)}.footer-logo svg{color:var(--primary-400)}.footer-logo-img{width:32px;height:32px;border-radius:6px;object-fit:cover}.footer-description{color:var(--gray-400);font-size:.9375rem;line-height:1.7;margin-bottom:var(--space-6)}.footer-contact{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.contact-item{display:flex;align-items:center;gap:var(--space-2);color:var(--gray-400);font-size:.875rem;transition:color var(--transition-fast)}.contact-item:hover{color:var(--primary-400)}.footer-links h4{font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-inverse);margin-bottom:var(--space-4)}.footer-links ul{list-style:none;display:flex;flex-direction:column;gap:var(--space-3)}.footer-links a{color:var(--gray-400);font-size:.9375rem;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--text-inverse)}.footer-bottom{display:flex;align-items:center;justify-content:center;padding-top:var(--space-8);border-top:1px solid var(--gray-800)}.footer-bottom p{color:var(--gray-500);font-size:.875rem;margin:0}.footer-legal{display:flex;gap:var(--space-6)}.footer-legal a{color:var(--gray-500);font-size:.875rem}.footer-legal a:hover{color:var(--text-inverse)}@media(max-width:1024px){.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1 / -1;max-width:none;margin-bottom:var(--space-6)}}@media(max-width:640px){.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:var(--space-4);text-align:center}}.landing{padding-top:56px}.hero{position:relative;min-height:calc(100vh - 70px);display:flex;align-items:center;padding:var(--space-16) 0;overflow:hidden}.hero-bg{position:absolute;inset:0;z-index:-1}.hero-gradient{position:absolute;inset:0;background:linear-gradient(135deg,var(--primary-950) 0%,var(--gray-900) 50%,var(--primary-900) 100%)}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.03) 1px,transparent 1px);background-size:60px 60px}.hero-content{max-width:800px;margin:0 auto;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:#f59e0b1a;border:1px solid rgba(245,158,11,.3);border-radius:var(--radius-full);font-size:.875rem;font-weight:500;color:var(--accent-400);margin-bottom:var(--space-6)}.hero-title{font-size:clamp(2.5rem,6vw,4.5rem);font-weight:700;color:#fff;line-height:1.1;margin-bottom:var(--space-6)}.hero-description{font-size:1.25rem;color:var(--gray-300);max-width:600px;margin:0 auto var(--space-8);line-height:1.7}.hero-actions{display:flex;gap:var(--space-4);justify-content:center;flex-wrap:wrap;margin-bottom:var(--space-12)}.hero-stats{display:flex;gap:var(--space-12);justify-content:center;flex-wrap:wrap}.stat{text-align:center}.stat-value{display:block;font-family:var(--font-display);font-size:2rem;font-weight:700;color:#fff}.stat-label{font-size:.875rem;color:var(--gray-400)}.section-header{text-align:center;max-width:600px;margin:0 auto var(--space-12)}.section-header h2{margin-bottom:var(--space-4)}.section-header p{font-size:1.125rem;color:var(--text-secondary)}.features-section{background:var(--bg-secondary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-6)}.feature-card{text-align:center;padding:var(--space-8)}.feature-icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-700) 100%);border-radius:var(--radius-xl);color:#fff;margin-bottom:var(--space-4)}.feature-icon svg{width:28px;height:28px}.feature-card h3{font-size:1.25rem;margin-bottom:var(--space-3)}.feature-card p{color:var(--text-secondary);margin:0}.solutions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6)}.solution-card{padding:var(--space-6);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-xl);transition:all var(--transition-base)}.solution-card:hover{border-color:var(--primary-400);box-shadow:var(--shadow-lg),0 0 30px #3b82f61a;transform:translateY(-4px)}.solution-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:var(--primary-50);border-radius:var(--radius-lg);color:var(--primary-600);margin-bottom:var(--space-4)}.solution-card h4{margin-bottom:var(--space-2)}.solution-card p{color:var(--text-secondary);font-size:.9375rem;margin-bottom:var(--space-4)}.solution-link{display:inline-flex;align-items:center;gap:var(--space-1);font-size:.875rem;font-weight:500;color:var(--primary-600)}.solution-link:hover{gap:var(--space-2)}.cta-section{background:var(--bg-secondary)}.cta-card{display:flex;align-items:center;justify-content:space-between;gap:var(--space-8);padding:var(--space-12);background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-800) 100%);border-radius:var(--radius-2xl);color:#fff}.cta-content h2{color:#fff;margin-bottom:var(--space-3)}.cta-content p{color:var(--primary-100);font-size:1.125rem;margin-bottom:var(--space-4)}.cta-benefits{list-style:none;display:flex;gap:var(--space-6);flex-wrap:wrap}.cta-benefits li{display:flex;align-items:center;gap:var(--space-2);font-size:.9375rem;color:var(--primary-100)}.cta-benefits svg{color:var(--accent-400)}.cta-actions{flex-shrink:0}@media(max-width:768px){.cta-card{flex-direction:column;text-align:center}.cta-benefits{justify-content:center}.hero-stats{gap:var(--space-8)}}@media(max-width:768px){.landing{padding-top:48px}}