@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Lato:wght@400;700&family=Open+Sans:wght@400;600&family=Roboto:wght@400;500;700&display=swap";:root{--primary: #4f46e5;--primary-hover: #4338ca;--secondary: #64748b;--background: #f8fafc;--surface: #ffffff;--text-main: #0f172a;--text-secondary: #475569;--border: #e2e8f0;--surface-hover: #f1f5f9;--accent-light: #e0e7ff;--accent-sky: #f0f9ff;--glass-bg: rgba(255, 255, 255, .6);--glass-border: rgba(255, 255, 255, .6);--glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, .1);--glass-blur: 20px;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem}.dark{--primary: #818cf8;--primary-hover: #a5b4fc;--secondary: #94a3b8;--background: #020617;--surface: #1e293b;--surface-hover: #334155;--text-main: #f1f5f9;--text-secondary: #cbd5e1;--border: #334155;--accent-light: rgba(99, 102, 241, .2);--accent-sky: rgba(14, 165, 233, .2);--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .08);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .4)}.dark body{background:linear-gradient(135deg,#0f172a,#1e1b4b,#312e81)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background:linear-gradient(135deg,#f0f9ff,#e0e7ff,#f5f3ff);background-attachment:fixed;color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh}a{text-decoration:none;color:inherit}button{cursor:pointer;font-family:inherit}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);background-image:linear-gradient(to bottom right,#fff6,#ffffff1a)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s ease;border:none}.btn-primary{background:linear-gradient(135deg,#2563ebe6,#1d4ed8f2);color:#fff;border:1px solid rgba(255,255,255,.2);box-shadow:0 4px 6px -1px #2563eb4d,0 2px 4px -1px #2563eb26,inset 0 1px #ffffff4d,inset 0 -2px 5px #0000001a;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);position:relative;overflow:hidden}.btn-primary:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:.5s}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 15px -3px #2563eb66,0 4px 6px -2px #2563eb33,inset 0 1px #fff6,inset 0 -2px 5px #0003;background:linear-gradient(135deg,#2563eb,#1d4ed8)}.btn-primary:hover:before{left:100%}.btn-ghost{background-color:transparent;color:var(--text-secondary);border:1px solid transparent}.btn-ghost:hover{background-color:#0000000d;color:var(--text-main);border-color:var(--border);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.dark .btn-ghost:hover{background-color:#ffffff1a}input[type=text],textarea,select{background:#ffffff80;border:1px solid var(--border);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:var(--text-main);transition:all .2s}.dark input[type=text],.dark textarea,.dark select{background:#0003;border-color:var(--border);color:var(--text-main)}input[type=text]:focus,textarea:focus,select:focus{background:var(--surface);border-color:var(--primary);box-shadow:0 0 0 2px #4f46e51a}.dark input[type=text]:focus,.dark textarea:focus,.dark select:focus{background:#0006}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.card{background:var(--surface);border-radius:var(--radius-md);border:1px solid var(--border);padding:var(--spacing-lg);transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000000d}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.theme-toggle{color:var(--text-secondary)}.theme-toggle:hover{color:var(--primary);background:#4f46e51a}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@keyframes scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.animate-scroll{animation:scroll 30s linear infinite}.animate-scroll:hover{animation-play-state:paused}.layout-container{display:flex;height:100vh;width:100vw;overflow:hidden;background-color:var(--background)}.sidebar{width:80px;height:96vh;margin:2vh 0 2vh 2vh;border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;padding:var(--spacing-lg) 0;z-index:10;transition:width .3s ease}.sidebar-header{margin-bottom:var(--spacing-xl)}.logo-icon{font-size:1.5rem;background:var(--surface);width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 6px -1px #0000001a}.sidebar-nav{display:flex;flex-direction:column;gap:var(--spacing-md);flex:1;width:100%;align-items:center}.nav-item{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .2s ease;position:relative;background:transparent;border:none}.nav-item:hover{background-color:#ffffff80;color:var(--primary);transform:translateY(-2px)}.nav-item.active{background-color:var(--primary);color:#fff;box-shadow:0 4px 12px #4f46e54d}.tooltip{position:absolute;left:60px;background:var(--text-main);color:#fff;padding:4px 8px;border-radius:4px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s;white-space:nowrap}.nav-item:hover .tooltip{opacity:1}.sidebar-footer{display:flex;flex-direction:column;gap:var(--spacing-md)}.main-content{flex:1;display:flex;flex-direction:column;padding:2vh var(--spacing-xl);overflow:hidden}.top-bar{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-xl);padding:var(--spacing-md) 0}.user-welcome h1{font-size:1.5rem;font-weight:700;color:var(--text-main);margin-bottom:4px}.user-welcome .date{color:var(--text-secondary);font-size:.875rem}.brand-badge{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:20px;font-weight:600;color:var(--primary);background:var(--surface)}.content-area{flex:1;overflow-y:auto;padding-bottom:var(--spacing-xl)}.print-modal-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.print-modal{width:100%;max-width:520px;background:linear-gradient(135deg,#fffffffa,#f8fafcfa);border-radius:16px;box-shadow:0 25px 50px -12px #00000040;border:1px solid rgba(255,255,255,.3);animation:slideUp .3s ease;max-height:90vh;overflow:hidden;display:flex;flex-direction:column}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.print-modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem;border-bottom:1px solid #e2e8f0}.print-modal-header h2{display:flex;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:600;color:#1e293b;margin:0}.close-btn{width:32px;height:32px;border:none;background:transparent;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#64748b;cursor:pointer;transition:all .2s}.close-btn:hover{background:#f1f5f9;color:#1e293b}.print-modal-body{padding:1.5rem;overflow-y:auto;flex:1}.print-section{margin-bottom:1.5rem}.print-section:last-child{margin-bottom:0}.print-section h3{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:600;color:#475569;text-transform:uppercase;letter-spacing:.5px;margin:0 0 .75rem}.print-options{display:flex;gap:.5rem}.print-option{flex:1;display:flex;flex-direction:column;align-items:center;padding:.875rem .75rem;border:2px solid #e2e8f0;border-radius:10px;cursor:pointer;transition:all .2s;background:#fff}.print-option:hover{border-color:#94a3b8}.print-option.active{border-color:#2563eb;background:linear-gradient(135deg,#eff6ff,#dbeafe)}.print-option input{display:none}.print-option span{font-size:.875rem;font-weight:600;color:#1e293b}.print-option small{font-size:.75rem;color:#64748b;margin-top:2px}.custom-range{display:flex;align-items:center;gap:.75rem;margin-top:1rem;padding:1rem;background:#f8fafc;border-radius:10px}.range-input{display:flex;flex-direction:column;gap:.25rem}.range-input label{font-size:.75rem;font-weight:500;color:#64748b}.range-input input{width:80px;padding:.5rem .75rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;font-weight:600;text-align:center;color:#1e293b;transition:all .2s}.range-input input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb26}.range-separator{font-size:.875rem;color:#64748b;padding-top:1.25rem}.layout-options{display:flex;flex-direction:column;gap:1rem}.orientation-selector label,.paper-selector label{display:block;font-size:.8rem;font-weight:500;color:#64748b;margin-bottom:.5rem}.orientation-buttons{display:flex;gap:.5rem}.orientation-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1rem;border:2px solid #e2e8f0;border-radius:10px;background:#fff;cursor:pointer;transition:all .2s;font-size:.875rem;font-weight:500;color:#475569}.orientation-btn:hover{border-color:#94a3b8}.orientation-btn.active{border-color:#2563eb;background:linear-gradient(135deg,#eff6ff,#dbeafe);color:#1e40af}.orientation-icon{border:2px solid currentColor;border-radius:3px}.orientation-icon.portrait{width:24px;height:32px}.orientation-icon.landscape{width:32px;height:24px}.paper-selector select{width:100%;padding:.625rem .875rem;border:2px solid #e2e8f0;border-radius:8px;font-size:.9rem;color:#1e293b;background:#fff;cursor:pointer;transition:all .2s}.paper-selector select:focus{outline:none;border-color:#2563eb}.checkbox-options{display:flex;flex-direction:column;gap:.75rem}.checkbox-option{display:flex;align-items:center;gap:.75rem;cursor:pointer}.checkbox-option input[type=checkbox]{width:18px;height:18px;accent-color:#2563eb;cursor:pointer}.checkbox-option span{font-size:.9rem;color:#1e293b}.print-modal-footer{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;border-top:1px solid #e2e8f0;background:#f8fafc}.action-buttons{display:flex;gap:.5rem}.print-modal .btn{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem 1rem;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s;border:none}.print-modal .btn-ghost{background:transparent;color:#64748b}.print-modal .btn-ghost:hover{background:#e2e8f0;color:#1e293b}.print-modal .btn-outline{background:#fff;border:2px solid #e2e8f0;color:#1e293b}.print-modal .btn-outline:hover{border-color:#2563eb;color:#2563eb}.print-modal .btn-primary{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;box-shadow:0 4px 12px #2563eb4d}.print-modal .btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #2563eb66}@media(max-width:560px){.print-modal{max-width:95%;margin:1rem}.print-options{flex-direction:column}.action-buttons{flex-direction:column;width:100%}.action-buttons .btn{width:100%;justify-content:center}.print-modal-footer{flex-direction:column;gap:1rem}}.editor-container{height:100%;display:flex;flex-direction:column;gap:var(--spacing-md)}.editor-toolbar{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);display:flex;align-items:center;gap:var(--spacing-md);background:#fff;position:relative;z-index:50}.toolbar-group{display:flex;align-items:center;gap:4px}.toolbar-divider{width:1px;height:24px;background:var(--border)}.font-select,.size-select{padding:4px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem}.tool-btn{padding:6px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:4px;white-space:nowrap}.tool-btn:hover{background:#f1f5f9;color:var(--text-main)}.spacer{flex:1}.toolbar-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.btn-sm{padding:6px 12px;font-size:.9rem}.editor-layout{flex:1;display:flex;gap:var(--spacing-md);height:calc(100vh - 160px);overflow:hidden;padding-bottom:20px}.editor-sidebar{width:300px;background:#fff;border-radius:var(--radius-lg);display:flex;flex-direction:column;overflow:hidden;transition:width .3s cubic-bezier(.4,0,.2,1);max-height:100%;user-select:text!important;-webkit-user-select:text!important}.editor-sidebar.left{width:280px}.editor-sidebar.right{width:320px}.editor-sidebar.collapsed{width:48px}.sidebar-title{padding:var(--spacing-md);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;height:57px}.editor-sidebar.collapsed .sidebar-title{justify-content:center;padding:var(--spacing-md) 0}.toggle-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center}.toggle-btn:hover{background:#f1f5f9;color:var(--primary)}.sidebar-title h3{font-size:1rem;font-weight:600;white-space:nowrap}.sidebar-header-content{padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border)}.badge{background:#fee2e2;color:#ef4444;font-size:.75rem;padding:2px 8px;border-radius:10px;font-weight:500}.placeholders-list{padding:var(--spacing-md);overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-md)}.placeholder-item label{display:block;font-size:.85rem;font-weight:500;color:var(--text-secondary);margin-bottom:4px}.placeholder-item input{width:100%;padding:8px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;transition:all .2s}.placeholder-item input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #4f46e51a}.editor-main{flex:1;background:#e2e8f0;border-radius:var(--radius-lg);overflow-y:auto;overflow-x:auto;position:relative}.zoom-controls-container{position:fixed;bottom:24px;left:320px;right:360px;z-index:100;display:flex;justify-content:space-between;align-items:center;pointer-events:none;padding:0 24px}.zoom-controls-container>*{pointer-events:auto}.editor-layout:has(.editor-sidebar.right.collapsed) .zoom-controls-container{right:80px}.editor-layout:has(.editor-sidebar.left.collapsed) .zoom-controls-container{left:80px}.zoom-controls{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#fff;border-radius:24px;box-shadow:0 4px 12px -2px #00000026}.zoom-controls button{background:transparent;border:none;cursor:pointer;padding:6px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .2s}.zoom-controls button:hover{background:#f1f5f9;color:var(--primary)}.zoom-controls .zoom-level{font-size:.85rem;font-weight:500;min-width:45px;text-align:center}.zoom-controls .divider{width:1px;height:16px;background:var(--border);margin:0 4px}.document-stats{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--text-secondary);margin-right:12px;padding:8px 12px;background:#ffffffe6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:16px;box-shadow:0 2px 8px -2px #0000001a}.document-stats .divider{color:var(--border)}.zoom-wrapper{margin:0 auto;padding:24px}.pages-wrapper{display:flex;flex-direction:column;gap:24px}.document-page{position:relative;width:816px;height:1056px;background:#fff;padding:72px;overflow:hidden;display:block;margin:0 auto 24px;box-sizing:content-box;box-shadow:0 4px 15px #0000001a}.editor-root{position:absolute;inset:72px;outline:none;white-space:pre}.editor-root p{margin:0 0 .5em;max-width:100%}.editor-root p:first-child{margin-top:0}.editor-root p,.editor-root span:not([class*=highlight-]),.editor-root div,.editor-root h1,.editor-root h2,.editor-root h3,.editor-root h4,.editor-root h5,.editor-root h6{background-color:transparent!important}.highlight-yellow{background-color:#fef08a!important}.highlight-green{background-color:#bbf7d0!important}.highlight-cyan{background-color:#a5f3fc!important}.highlight-magenta{background-color:#f5d0fe!important}.highlight-gray{background-color:#e2e8f0!important}.editor-root a{color:#2563eb;text-decoration:underline;cursor:pointer}.document-page h1,.editor-root h1{text-align:center;font-size:16pt;margin-bottom:2rem;text-transform:uppercase}.editor-root ul{list-style-type:disc!important;padding-left:2rem!important;margin-bottom:.5em}.editor-root ol{list-style-type:decimal!important;padding-left:2rem!important;margin-bottom:.5em}.editor-root li{margin-bottom:.25em;background-color:transparent!important}.document-page p{margin-bottom:.5em}.content-element{position:absolute;white-space:pre;cursor:text;line-height:1.2;transition:top .1s ease-out;z-index:1}.content-element:focus{z-index:10;outline:1px dashed var(--primary)}.variable{background-color:#4f46e51a!important;border-bottom:2px solid #4f46e5;color:#4f46e5;font-weight:600;cursor:pointer;border-radius:2px;padding:0 2px}.loading-overlay{position:fixed;inset:0;background:#ffffffd9;z-index:1000;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:500;color:#4f46e5}.editor-table{width:100%;border-collapse:collapse;margin-bottom:1em;table-layout:fixed}.editor-table td{border:1px solid #000;padding:6px 8px;vertical-align:top;min-width:50px}.editor-table p{margin:0}.variable-deleted{background-color:transparent;color:inherit;text-decoration:none;cursor:text}.chat-header{display:flex;border-bottom:1px solid var(--border);align-items:center;height:57px}.editor-sidebar.collapsed .chat-header{justify-content:center}.tab{flex:1;text-align:center;padding:var(--spacing-md);font-size:.9rem;font-weight:500;cursor:pointer;color:var(--text-secondary);white-space:nowrap}.tab.active{color:var(--primary);border-bottom:2px solid var(--primary);background:#4f46e50d}.chat-messages{flex:1;padding:var(--spacing-md);overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-md);min-height:0}.message{display:flex}.message.user{justify-content:flex-end}.message.ai{justify-content:flex-start}.message-bubble{max-width:85%;padding:10px 14px;border-radius:12px;font-size:.9rem;line-height:1.4}.message.user .message-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:2px}.message.ai .message-bubble{background:#f1f5f9;color:var(--text-main);border-bottom-left-radius:2px}.chat-input-area{padding:var(--spacing-md);padding-bottom:28px;border-top:1px solid var(--border);background:#fff;flex-shrink:0}.input-wrapper{display:flex;align-items:center;background:#f8fafc;border:1px solid var(--border);border-radius:20px;padding:4px 4px 4px 16px}.input-wrapper input{flex:1;border:none;background:transparent;font-size:.9rem;padding:8px 0}.input-wrapper input:focus{outline:none}.send-btn{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s}.send-btn:hover{transform:scale(1.05)}.export-menu{position:absolute;top:100%;right:0;margin-top:8px;background:#fff;border-radius:var(--radius-md);box-shadow:0 10px 15px -3px #0000001a;padding:4px;min-width:160px;z-index:50;display:flex;flex-direction:column}.export-menu button{display:flex;align-items:center;gap:8px;padding:8px 12px;width:100%;border:none;background:transparent;text-align:left;font-size:.9rem;color:var(--text-main);border-radius:var(--radius-sm);cursor:pointer}.export-menu button:hover{background:#f1f5f9;color:var(--primary)}.highlight-menu{position:absolute;top:100%;left:0;margin-top:8px;background:#fff;border-radius:var(--radius-md);box-shadow:0 10px 15px -3px #0000001a;padding:8px;min-width:max-content;z-index:50;display:flex;gap:6px;border:1px solid var(--border)}.highlight-swatch{width:24px;height:24px;border-radius:4px;border:1px solid var(--border);cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center;transition:transform .1s,box-shadow .1s}.highlight-swatch:hover{transform:scale(1.1);box-shadow:0 2px 4px #0000001a;z-index:10}.notes-area{flex:1;display:flex;flex-direction:column;padding:var(--spacing-md);height:100%}.notes-input{flex:1;width:100%;resize:none;border:none;background:transparent;font-family:Inter,sans-serif;font-size:.95rem;line-height:1.6;color:var(--text-main);outline:none}.notes-input::placeholder{color:var(--text-secondary);opacity:.7}.page-header{position:relative;margin-bottom:2rem;font-size:14px;color:#333;pointer-events:auto;white-space:normal;z-index:10;flex-shrink:0;min-height:24px;outline:none;cursor:text}.page-header:empty:before{content:"Header (Click to edit)";color:#94a3b8;font-style:italic;pointer-events:none}.page-header p{margin:0;line-height:1.2}.page-footer{position:relative;margin-top:auto;margin-bottom:-40px;font-size:12px;color:#666;border-top:1px solid #eee;padding-top:8px;pointer-events:auto;white-space:normal;z-index:10;flex-shrink:0;min-height:24px;outline:none;cursor:text}.page-footer:empty:before{content:"Footer (Click to edit)";color:#94a3b8;font-style:italic;pointer-events:none}.page-footer p{margin:0;line-height:normal}.page-header[contenteditable=false]:hover,.page-footer[contenteditable=false]:hover{cursor:pointer;background-color:#00000005;outline:1px dashed #cbd5e1}.page-number-display{position:absolute;bottom:36px;left:50%;transform:translate(-50%);font-size:12px;color:#64748b;font-family:Arial,sans-serif;font-weight:500;z-index:5;pointer-events:none;background:#ffffffe6;padding:2px 12px;border-radius:12px;box-shadow:0 1px 3px #00000014;transition:opacity .2s}.document-page:hover .page-number-display{opacity:.7}.floating-toolbar{display:flex;align-items:center;gap:4px;padding:6px 8px;background:#fffffff2;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(0,0,0,.08);box-shadow:0 4px 12px #00000026;border-radius:8px;animation:fadeInScale .15s ease-out;pointer-events:auto}@keyframes fadeInScale{0%{opacity:0;transform:translate(-50%,-100%) translateY(0) scale(.95)}to{opacity:1;transform:translate(-50%,-100%) translateY(-10px) scale(1)}}.floating-toolbar .toolbar-group{display:flex;align-items:center;gap:2px}.floating-toolbar .tool-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;padding:0;border:none;background:transparent;color:#475569;border-radius:4px;cursor:pointer;transition:all .2s}.floating-toolbar .tool-btn:hover{background:#f1f5f9;color:#0f172a}.floating-toolbar .toolbar-divider{width:1px;height:16px;background:#e2e8f0;margin:0 4px}.floating-toolbar .btn-enhance{display:flex;align-items:center;padding:4px 10px;height:28px;font-size:13px;font-weight:500;color:#fff;background:linear-gradient(135deg,#6366f1,#4f46e5);border:none;border-radius:99px;cursor:pointer;margin-left:4px;transition:all .2s;box-shadow:0 2px 4px #4f46e533}.floating-toolbar .btn-enhance:hover{transform:translateY(-1px);box-shadow:0 4px 6px #4f46e54d;filter:brightness(1.1)}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:fadeIn .2s ease-out}.modal-content{background:#fff;padding:24px;border-radius:12px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;position:relative;border:1px solid rgba(255,255,255,.5);animation:slideUp .3s ease-out}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-header h3{margin:0;font-size:18px;font-weight:600;display:flex;align-items:center;color:#1e293b}.form-control{width:100%;padding:12px;border:1px solid #e2e8f0;border-radius:8px;font-size:14px;background:#ffffff80;transition:all .2s;font-family:inherit;resize:vertical}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a;background:#fff}.text-muted{color:#64748b}.mt-3{margin-top:12px}.icon-mr{margin-right:8px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.pdf-editor-container{display:flex;height:100vh;background-color:var(--background);color:var(--text-main);overflow:hidden;--primary: #2563eb;--primary-hover: #1d4ed8}.tool-sidebar{width:60px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding-top:1rem;gap:1rem;z-index:10}.tool-icon-btn{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);transition:all .2s}.tool-icon-btn:hover{background:var(--surface-hover);color:var(--primary)}.tool-icon-btn.active{background:#2563eb;color:#fff;box-shadow:0 4px 6px -1px #2563eb66}.builder-container{display:flex;flex:1;overflow:hidden}.thumbnails-sidebar{width:240px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;padding:1rem;gap:.5rem}.thumbnail-card{position:relative;background:var(--surface);border-radius:8px;padding:.5rem;cursor:grab;transition:transform .2s,box-shadow .2s;border:2px solid transparent;box-shadow:0 1px 3px #0000001a}.thumbnail-card:active{cursor:grabbing}.thumbnail-card.selected{border-color:var(--primary);background:var(--accent-light)}.thumbnail-card.dragging{opacity:.5;transform:scale(.95)}.thumbnail-image-container{position:relative;width:100%;height:140px;background:var(--surface-hover);display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:4px;border:1px solid var(--border)}.thumbnail-image-container img{max-width:100%;max-height:100%;object-fit:contain;transition:transform .2s;box-shadow:0 2px 4px #0000001a}.page-number{position:absolute;bottom:4px;right:4px;background:#0009;color:#fff;padding:2px 6px;border-radius:4px;font-size:.75rem}.file-label{font-size:.75rem;color:var(--text-secondary);margin-top:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thumb-actions{position:absolute;top:4px;right:4px;display:flex;gap:4px;opacity:0;transition:opacity .2s}.thumbnail-card:hover .thumb-actions{opacity:1}.action-mini-btn{width:24px;height:24px;border-radius:4px;background:#0009;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}.action-mini-btn:hover{background:#ef4444}.drag-handle{position:absolute;top:4px;left:4px;width:20px;height:20px;background:#00000080;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#fff;cursor:grab;opacity:0;transition:opacity .2s ease;z-index:5}.thumbnail-card:hover .drag-handle{opacity:1}.drag-handle:active{cursor:grabbing}.thumbnail-card[draggable=true]{cursor:grab}.thumbnail-card[draggable=true]:active{cursor:grabbing;opacity:.6;transform:scale(.98)}.thumbnail-card.drag-over{border:2px dashed #2563eb;background:#2563eb1a}.main-preview-area{flex:1;background:#e2e8f0;display:flex;flex-direction:column;position:relative}.preview-toolbar-top{height:60px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem}.preview-canvas{flex:1;display:block;overflow-y:auto;background:#e5e7eb;padding:2rem;scroll-behavior:smooth}.pages-flow-container{display:flex;flex-direction:column;align-items:center;gap:2rem;padding-bottom:4rem}.page-view-wrapper{position:relative;transition:transform .2s;cursor:pointer}.page-view-wrapper.focused .big-preview-img{box-shadow:0 0 0 4px #2563eb80,0 10px 40px #0003}.page-view-number{position:absolute;top:-1.5rem;left:0;color:var(--text-secondary);font-size:.8rem;font-weight:500}.big-preview-img{width:800px;max-width:95%;height:auto;box-shadow:0 4px 15px #0000001a;transition:all .3s ease;background:#fff;display:block}.btn-process{background:#2563eb;color:#fff;padding:.5rem 1.5rem;border-radius:var(--radius-md);font-weight:500;border:none;display:flex;align-items:center;gap:.5rem;transition:all .2s}.btn-process:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.btn-process:disabled{background:var(--secondary);cursor:not-allowed;transform:none;box-shadow:none}.split-gap{height:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .2s}.split-gap:hover,.split-gap.active{opacity:1}.scissor-line{width:90%;height:2px;background:#ef4444;position:relative;display:flex;align-items:center;justify-content:center}.scissor-icon{background:#ef4444;color:#fff;border-radius:50%;padding:4px;width:24px;height:24px;display:flex;align-items:center;justify-content:center}.drop-indicator-top{border-top:3px solid var(--primary)}.drop-indicator-bottom{border-bottom:3px solid var(--primary)}.filename-input{background:var(--surface-hover);border:1px solid var(--border);padding:.5rem;border-radius:6px;color:var(--text-main);width:200px}.filename-input:focus{outline:none}.watermark-toolbar{background:#fff;padding:.75rem 1.5rem;display:flex;align-items:center;gap:1.5rem;border-bottom:1px solid var(--border);box-shadow:0 1px 2px #0000000d}.watermark-toolbar.enhanced{flex-direction:column;align-items:stretch;padding:1rem 1.5rem;gap:1rem;background:linear-gradient(135deg,#fffffffa,#f8fafcfa);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.watermark-type-tabs{display:flex;gap:.5rem;padding-bottom:.75rem;border-bottom:1px solid var(--border)}.type-tab{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border:1.5px solid var(--border);border-radius:8px;background:#fff;color:var(--text-secondary);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease}.type-tab:hover{border-color:var(--primary);color:var(--primary)}.type-tab.active{background:linear-gradient(135deg,#2563eb,#1d4ed8);border-color:transparent;color:#fff;box-shadow:0 2px 8px #2563eb4d}.watermark-controls-row{display:flex;gap:1.5rem;align-items:flex-start}.watermark-input-area{flex:1;display:flex;flex-direction:column;gap:.75rem;min-width:200px}.watermark-settings-area{flex:1.5;display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-start}.watermark-settings-area .tool-group{flex-direction:column;align-items:flex-start;gap:.35rem}.watermark-actions-area{display:flex;flex-direction:column;gap:.5rem;min-width:140px}.image-upload-group{flex-direction:column;align-items:flex-start}.image-upload-zone{width:100%;min-height:100px;border:2px dashed var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;background:#f8fafc80}.image-upload-zone:hover{border-color:var(--primary);background:#2563eb0d}.image-upload-zone.has-image{border-style:solid;border-color:var(--primary);background:#fff;padding:.5rem}.upload-placeholder{display:flex;flex-direction:column;align-items:center;gap:.5rem;color:var(--text-secondary);padding:1rem}.upload-placeholder span{font-size:.85rem}.upload-placeholder .hint{font-size:.75rem;opacity:.7}.image-preview-container{position:relative;display:flex;align-items:center;justify-content:center}.image-preview-container img{max-width:180px;max-height:100px;object-fit:contain;border-radius:6px}.clear-image-btn{position:absolute;top:-8px;right:-8px;width:24px;height:24px;border-radius:50%;background:#ef4444;color:#fff;border:2px solid white;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 6px #0003;transition:all .2s}.clear-image-btn:hover{background:#dc2626;transform:scale(1.1)}.action-buttons{display:flex;flex-direction:column;gap:.5rem}.action-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1rem;border-radius:8px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease;border:1.5px solid var(--border);background:#fff;color:var(--text-main)}.action-btn:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:#2563eb0d}.action-btn:disabled{opacity:.5;cursor:not-allowed}.action-btn.save-btn:hover{border-color:#10b981;color:#10b981;background:#10b9810d}.saved-dropdown-container{position:relative}.saved-dropdown{position:absolute;top:100%;left:0;right:0;margin-top:.25rem;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 25px #00000026;z-index:100;max-height:200px;overflow-y:auto}.saved-item{display:flex;align-items:center;border-bottom:1px solid var(--border)}.saved-item:last-child{border-bottom:none}.saved-item-btn{flex:1;display:flex;align-items:center;gap:.5rem;padding:.6rem .75rem;background:none;border:none;text-align:left;cursor:pointer;font-size:.85rem;color:var(--text-main);transition:background .15s}.saved-item-btn:hover{background:#2563eb0d}.saved-item-btn span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.delete-saved-btn{padding:.5rem;background:none;border:none;color:var(--text-secondary);cursor:pointer;transition:color .15s}.delete-saved-btn:hover{color:#ef4444}.save-dialog-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.save-dialog{background:#fff;padding:1.5rem;border-radius:12px;width:320px;box-shadow:0 20px 50px #00000040}.save-dialog h4{margin:0 0 1rem;font-size:1.1rem;color:var(--text-main)}.save-input{width:100%;padding:.75rem;border:1.5px solid var(--border);border-radius:8px;font-size:.95rem;margin-bottom:1rem;transition:border-color .2s}.save-input:focus{outline:none;border-color:var(--primary)}.save-dialog-actions{display:flex;gap:.75rem;justify-content:flex-end}.save-dialog-actions button{padding:.6rem 1.25rem;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s;border:1px solid var(--border);background:#fff;color:var(--text-main)}.save-dialog-actions button:hover{background:var(--surface-hover)}.save-dialog-actions button.primary{background:linear-gradient(135deg,#2563eb,#1d4ed8);border-color:transparent;color:#fff}.save-dialog-actions button.primary:hover{box-shadow:0 4px 12px #2563eb4d}.tool-group{display:flex;align-items:center;gap:.75rem}.tool-group label{font-size:.85rem;font-weight:500;color:var(--text-secondary);white-space:nowrap}.tool-input-text{border:1px solid var(--border);padding:.5rem .75rem;border-radius:6px;font-size:.9rem;width:100%;transition:border-color .2s}.tool-input-text:focus{outline:none;border-color:var(--primary)}.tool-slider{width:120px;accent-color:var(--primary)}.tool-divider{width:1px;height:24px;background:var(--border)}.page-number-toolbar{background:linear-gradient(135deg,#fffffff2,#f8fafcf2);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:1rem 1.5rem;display:flex;align-items:center;gap:1.25rem;border-bottom:1px solid rgba(37,99,235,.15);box-shadow:0 4px 20px #2563eb14,0 1px 3px #0000000d;flex-wrap:wrap}.page-number-toolbar .tool-group{display:flex;align-items:center;gap:.65rem}.page-number-toolbar label{font-size:.8rem;font-weight:600;color:#475569;text-transform:uppercase;letter-spacing:.5px}.tool-select{appearance:none;background:linear-gradient(180deg,#fff,#f8fafc);border:1.5px solid #e2e8f0;padding:.5rem 2rem .5rem .75rem;border-radius:8px;font-size:.9rem;font-weight:500;color:#1e293b;cursor:pointer;transition:all .2s ease;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' 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 .5rem center}.tool-select:hover{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a}.tool-select:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb26}.position-grid-wrapper{display:flex;align-items:center;justify-content:center}.position-page-preview{position:relative;width:60px;height:80px;background:linear-gradient(180deg,#f8fafc,#fff);border:2px solid #e2e8f0;border-radius:4px;box-shadow:0 2px 8px #00000014,inset 0 0 0 1px #ffffff80}.position-dot{position:absolute;width:10px;height:10px;border-radius:50%;background:#cbd5e1;border:none;cursor:pointer;transition:all .2s ease;padding:0}.position-dot:hover{background:#94a3b8;transform:scale(1.2)}.position-dot.active{background:linear-gradient(135deg,#2563eb,#1d4ed8);box-shadow:0 0 0 3px #2563eb40,0 2px 4px #2563eb66;transform:scale(1.3)}.position-dot.top-left{top:6px;left:6px}.position-dot.top-center{top:6px;left:50%;transform:translate(-50%)}.position-dot.top-center:hover{transform:translate(-50%) scale(1.2)}.position-dot.top-center.active{transform:translate(-50%) scale(1.3)}.position-dot.top-right{top:6px;right:6px}.position-dot.bottom-left{bottom:6px;left:6px}.position-dot.bottom-center{bottom:6px;left:50%;transform:translate(-50%)}.position-dot.bottom-center:hover{transform:translate(-50%) scale(1.2)}.position-dot.bottom-center.active{transform:translate(-50%) scale(1.3)}.position-dot.bottom-right{bottom:6px;right:6px}.tool-input-number{width:60px;border:1.5px solid #e2e8f0;padding:.5rem;border-radius:8px;font-size:.9rem;font-weight:600;text-align:center;color:#1e293b;transition:all .2s ease}.tool-input-number:hover{border-color:#2563eb}.tool-input-number:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb26}.tool-color{width:36px;height:36px;padding:0;border:2px solid #e2e8f0;border-radius:8px;cursor:pointer;overflow:hidden;transition:all .2s ease;background:transparent}.tool-color:hover{border-color:#2563eb;transform:scale(1.05);box-shadow:0 2px 8px #00000026}.tool-color::-webkit-color-swatch-wrapper{padding:2px}.tool-color::-webkit-color-swatch{border:none;border-radius:4px}.pdf-uploader{display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px dashed var(--border);border-radius:var(--radius-lg);padding:3rem;transition:all .2s;background:#ffffff0d;cursor:pointer}.pdf-uploader:hover{border-color:var(--primary);background:var(--surface-hover)}.upload-icon-wrapper{width:64px;height:64px;border-radius:50%;background:var(--surface);display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--primary);box-shadow:0 4px 6px -1px #0000001a}.loading-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#fffc;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:50;color:var(--primary)}.pdf-spinner{width:48px;height:48px;border:4px solid var(--surface-hover);border-top:4px solid var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}.processing-dots{display:inline-flex;align-items:center;gap:2px}.processing-dots span{width:4px;height:4px;background-color:currentColor;border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.processing-dots span:nth-child(1){animation-delay:-.32s}.processing-dots span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.27"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.modal-overlay{position:fixed;inset:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .2s ease-out}.modal-content{background:var(--surface);width:90%;max-width:1000px;border-radius:var(--radius-xl);padding:var(--spacing-xl);position:relative;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;animation:slideUp .3s cubic-bezier(.16,1,.3,1);border:1px solid var(--border)}.close-btn{position:absolute;top:var(--spacing-lg);right:var(--spacing-lg);background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:50%;transition:background .2s}.close-btn:hover{background:var(--surface-hover)}.modal-title{font-size:1.5rem;font-weight:700;color:var(--text-main);margin:0;text-align:left;max-width:calc(100% - 80px)}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-lg)}.option-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-xl);text-align:left;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;gap:var(--spacing-md);height:100%}.option-card:hover{border-color:var(--primary);background:var(--surface-hover);transform:translateY(-2px)}.icon-box{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-sm)}.icon-box.upload{background:var(--accent-light);color:var(--primary)}.icon-box.type{background:var(--accent-sky);color:#0ea5e9}.text-content h3{font-size:1.1rem;font-weight:600;margin-bottom:4px;color:var(--text-main)}.text-content p{font-size:.9rem;color:var(--text-secondary);line-height:1.5}.modal-header{display:flex;align-items:flex-start;justify-content:flex-start;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.icon-badge{color:var(--primary);flex-shrink:0;margin-top:4px}.modal-subtitle{color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.input-area textarea{width:100%;padding:var(--spacing-md);border:1px solid var(--border);border-radius:var(--radius-md);font-family:inherit;font-size:1rem;resize:vertical;margin-bottom:var(--spacing-lg);transition:border-color .2s}.input-area textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.modal-controls{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-xl)}.select-input{padding:8px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-hover);margin-top:4px;width:200px}.premium-feature{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-hover);opacity:.7}.feature-info{flex:1;display:flex;flex-direction:column}.feature-title{font-weight:500;color:var(--text-main)}.feature-sub{font-size:.8rem;color:var(--text-secondary)}.modal-actions{display:flex;justify-content:flex-end;gap:var(--spacing-md)}.fade-in{animation:fadeIn .3s ease-out}.step-content .modal-header{justify-content:flex-start;width:100%}.step-content .modal-header .modal-title{flex:none;text-align:left}.format-selection-layout{display:flex;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg);max-height:450px}.formats-grid{display:flex;flex-direction:column;gap:var(--spacing-sm);flex:1;min-width:280px;overflow-y:auto}.format-card{background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-md);text-align:left;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;gap:var(--spacing-xs);width:100%}.format-card:hover{border-color:var(--primary);background:var(--surface-hover)}.format-card.selected{border-color:var(--primary);background:#4f46e50d;box-shadow:0 0 0 3px #4f46e51a}.format-header{display:flex;justify-content:space-between;align-items:flex-start}.format-icon{width:36px;height:36px;border-radius:8px;background:var(--accent-light);color:var(--primary);display:flex;align-items:center;justify-content:center}.selected-badge{width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center}.format-card h3{font-size:.95rem;font-weight:600;color:var(--text-main);margin:0}.format-card p{font-size:.8rem;color:var(--text-secondary);line-height:1.4;margin:0}.preview-btn{display:flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);padding:4px 8px;font-size:.75rem;color:var(--text-secondary);cursor:pointer;transition:all .2s;margin-top:var(--spacing-xs);width:fit-content}.preview-btn:hover{border-color:var(--primary);color:var(--primary)}.preview-panel{flex:0 0 340px;background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius-lg);display:flex;flex-direction:column;animation:slideIn .2s ease-out;max-height:420px}.preview-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border);font-weight:500;font-size:.85rem;color:var(--text-main);gap:var(--spacing-sm)}.zoom-controls{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:4px 8px}.zoom-controls button{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .2s}.zoom-controls button:hover{background:var(--surface-hover);color:var(--primary)}.zoom-level{font-size:.75rem;min-width:36px;text-align:center;color:var(--text-secondary)}.preview-header button{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center}.preview-header button:hover{background:var(--surface);color:var(--text-main)}.preview-content{flex:1;padding:var(--spacing-sm);overflow:auto}.zoom-wrapper{position:relative;flex-shrink:0}.a4-page{background:#fff;border-radius:4px;box-shadow:0 2px 8px #00000026;width:280px;min-height:396px;padding:20px;transform-origin:top left;position:absolute;top:0;left:0}.a4-page pre{font-family:Georgia,serif;font-size:7.5px;line-height:1.45;white-space:pre-wrap;word-wrap:break-word;margin:0;color:#333}@keyframes slideIn{0%{opacity:0;transform:translate(10px)}to{opacity:1;transform:translate(0)}}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl) 0;text-align:center;min-height:300px}.loading-state h3{margin-top:var(--spacing-lg);font-size:1.25rem;color:var(--text-main)}.loading-state p{color:var(--text-secondary);margin-top:var(--spacing-sm)}.spinner{color:var(--primary);animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{width:90%;max-width:500px;padding:24px;border-radius:16px;animation:slideUp .3s ease-out}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h2{margin:0;font-size:1.25rem;font-weight:600}.close-btn{background:none;border:none;cursor:pointer;color:var(--text-secondary);padding:4px;border-radius:50%;transition:background-color .2s}.close-btn:hover{background-color:#ffffff1a}.upload-success-message{display:flex;align-items:center;gap:10px;background-color:#10b9811a;color:#10b981;padding:12px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.modal-description{color:var(--text-secondary);margin-bottom:20px;font-size:.95rem;line-height:1.5}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;font-size:.9rem}.form-group textarea{width:100%;padding:12px;border-radius:8px;border:1px solid var(--border-color);background-color:#ffffff0d;color:var(--text-primary);resize:vertical;font-family:inherit}.form-group textarea:focus{outline:none;border-color:var(--primary-color)}.file-upload-box{border:2px dashed var(--border-color);border-radius:8px;padding:20px;text-align:center;transition:border-color .2s}.file-upload-box:hover{border-color:var(--primary-color)}.hidden-input{display:none}.upload-label{display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;color:var(--text-secondary);font-size:.9rem}.modal-footer{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}details>summary{list-style:none}details>summary::-webkit-details-marker{display:none}details[open] .chevron-icon{transform:rotate(180deg)}