:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color:#333;background-color:#0d0d0d;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}a{font-weight:500;color:#007bff;text-decoration:none}a:hover{color:#0056b3;text-decoration:underline}body{margin:0;padding:0;min-width:320px;min-height:100vh;background-color:#0d0d0d}h1{font-size:2.5rem;line-height:1.2;font-weight:600}h2{font-size:1.8rem;line-height:1.3;font-weight:500}button{border-radius:4px;border:1px solid transparent;padding:8px 16px;font-size:14px;font-weight:500;font-family:inherit;background-color:#007bff;color:#fff;cursor:pointer;transition:all .2s ease}button:focus,button:focus-visible{outline:2px solid #007bff;outline-offset:2px}button:disabled{background-color:#6c757d;cursor:not-allowed}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.5rem}button{padding:6px 12px;font-size:12px}}#root{width:100%;min-height:100vh;margin:0;padding:0;background-color:#0d0d0d;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif}.app-container{display:flex;flex-direction:column;min-height:100vh;width:100%;max-width:100%;margin:0;padding:0;box-sizing:border-box}.app-container.fullscreen-mode{max-width:100%;width:100%;height:100vh;margin:0;padding:0;overflow:hidden}header{padding:20px 0;border-bottom:1px solid #e0e0e0;margin-bottom:20px}.header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.header-left{text-align:left}.header-right{display:flex;align-items:center}header h1{margin:0;font-size:2.5rem;color:#333}.subtitle{color:#666;margin-top:5px;font-size:1rem}.view-mode-selector{display:flex;justify-content:center;margin-top:15px;gap:10px}.view-mode-btn{background-color:#f0f0f0;color:#333;border:1px solid #ddd;padding:8px 16px;border-radius:4px;cursor:pointer;font-size:14px;transition:all .2s ease}.view-mode-btn:hover{background-color:#e0e0e0}.view-mode-btn.active{background-color:#007bff;color:#fff;border-color:#007bff}.viewer-container{flex:1;display:flex;flex-direction:column;width:100%}.fullscreen-mode .viewer-container{height:calc(100vh - 50px)}.file-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding:10px;background-color:#f8f9fa;border-radius:4px;flex-wrap:wrap;gap:10px}.file-info h2{margin:0;font-size:1.2rem;color:#333;word-break:break-word;max-width:70%}.reset-btn{background-color:#6c757d;color:#fff;border:none;padding:8px 16px;border-radius:4px;cursor:pointer;font-size:14px;transition:background-color .2s}.reset-btn:hover{background-color:#5a6268}.search-btn{margin-bottom:20px}.header-buttons{display:flex;gap:10px;margin-top:10px}.supabase-files-container{width:100%;max-width:800px;margin:0 auto 30px;padding:20px;background-color:#f8f9fa;border-radius:8px;box-shadow:0 2px 4px #0000001a}.supabase-files-container h2{margin-bottom:20px;text-align:center;color:#333}.no-files{text-align:center;color:#666;padding:20px;background-color:#f0f0f0;border-radius:4px}.pdf-list{list-style:none;padding:0;margin:0 0 20px}.pdf-list-item{margin-bottom:10px}.pdf-list-btn{width:100%;text-align:left;padding:12px 15px;background-color:#fff;border:1px solid #ddd;border-radius:4px;cursor:pointer;transition:all .2s ease;color:#333;font-size:14px}.pdf-list-btn:hover{background-color:#f0f0f0;border-color:#007bff}.loading-container,.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;max-width:800px;margin:50px auto;padding:30px;background-color:#f8f9fa;border-radius:8px;box-shadow:0 2px 4px #0000001a}.loading{font-size:18px;color:#007bff;margin-bottom:20px}.error{font-size:16px;color:#dc3545;margin-bottom:20px;padding:15px;background-color:#f8d7da;border-radius:4px;border:1px solid #f5c6cb;width:100%;text-align:center}.debug-info{margin:20px 0;padding:15px;background-color:#f8f9fa;border-radius:4px;border:1px solid #ddd;text-align:left;font-size:14px}.debug-info h3{margin-top:0;margin-bottom:10px;font-size:16px;color:#333}.debug-info p{margin:5px 0;color:#666}footer{margin-top:40px;padding:20px 0;text-align:center;border-top:1px solid #eee;color:#666;font-size:.9rem}.fullscreen-header{position:absolute;top:0;left:0;width:100%;height:50px;background-color:#000000b3;display:flex;justify-content:space-between;align-items:center;padding:0 20px;z-index:100}.back-to-search-btn{background-color:transparent;color:#fff;border:none;padding:8px 16px;font-size:16px;cursor:pointer;display:flex;align-items:center;transition:all .2s ease}.back-to-search-btn:hover{background-color:#ffffff1a;border-radius:4px}@media (max-width: 768px){header h1{font-size:2rem}.app-container{padding:0 10px}.file-info{flex-direction:column;align-items:flex-start}.file-info h2{max-width:100%;margin-bottom:10px}}@media (max-width: 480px){header h1{font-size:1.8rem}.subtitle{font-size:.9rem}.reset-btn{width:100%}}.grades-page{min-height:100vh;background:#0d0d0d;position:relative;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.brand-name{position:fixed;top:20px;left:20px;font-size:24px;font-weight:700;color:#ff69b4;z-index:1000}.profile-section{position:relative;display:flex;align-items:center;gap:10px}.profile-button{width:40px;height:40px;border-radius:50%;background:transparent;border:2px solid #FF69B4;color:#fff;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.profile-button:hover{background:#ff69b41a;color:#fff;transform:scale(1.05)}.profile-button:focus{outline:2px solid #ec4899!important;outline-offset:2px}.profile-avatar{width:100%;height:100%;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;transition:background-color .2s}.profile-button:hover .profile-avatar{background-color:transparent}.payment-button{background-color:transparent!important;color:#fff!important;border:2px solid #FF69B4!important;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .2s;margin-right:12px;font-size:14px;font-weight:500}.payment-button:hover{background-color:#ff69b41a!important}.payment-button:focus{outline:2px solid #FF69B4!important;outline-offset:2px}.payment-sub.payment-button{background:transparent;color:#fff;border:2px solid #FF69B4;padding:10px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;margin-right:10px;transition:all .3s ease}.payment-sub.payment-button:hover{background:#ff69b41a;transform:translateY(-2px)}.grades-content{padding:80px 20px 40px;max-width:1200px;margin:0 auto}.description-section{text-align:center;margin-bottom:30px}.main-title{font-size:3.5rem;font-weight:700;color:#fff;margin:0 0 20px;line-height:1.2;width:100%}.made-simple-text{color:#39ff14}.subtitle-text{font-size:1.8rem;font-weight:500;color:#fff;margin:0;line-height:1.4}.downloading-text{color:#ff10f0}.zimsec-papers-text{color:#ff3}.grade-7-text{color:tomato}.form-4-text{color:#87ceeb}.form-6-text{color:plum}.grade-1-text{color:#0ff}.form-6-range-text{color:#ff0090}.grades-section{background:#0d0d0d;border-radius:20px;padding:40px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.grades-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;max-width:1000px;margin:0 auto}.grade-button{background:#0d0d0d;border:3px solid hotpink;border-radius:15px;padding:30px 20px;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.grade-button:hover{transform:translateY(-5px)}.grade-button:active{transform:translateY(-2px)}.grade-button-content{position:relative;z-index:2}.profile-dropdown{position:absolute;top:100%;right:0;background:#1a1a1a;border:2px solid #FF10F0;border-radius:10px;padding:15px;min-width:200px;z-index:1000;box-shadow:0 4px 20px #ff10f04d}.profile-info p{color:#fff;margin:0;font-size:14px;padding:5px 0;border-bottom:1px solid #333}.logout-button{background:transparent;border:2px solid #FF10F0;color:#fff;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .3s ease;font-size:14px}.logout-button:hover{background:#ff10f0;color:#000}.logout-button:disabled{opacity:.6;cursor:not-allowed}.grade-name{color:#fff;font-size:1.3rem;font-weight:800;display:block}.payment-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.payment-modal{background:#fff;border-radius:12px;box-shadow:0 20px 40px #00000026;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;animation:modalSlideIn .3s ease-out}.payment-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #e5e7eb;background:linear-gradient(135deg,#ec4899,#db2777);color:#fff;border-radius:12px 12px 0 0}.payment-modal-header h2{margin:0;font-size:20px;font-weight:600}.payment-close-button{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;padding:4px 8px;border-radius:4px;transition:background-color .2s}.payment-close-button:hover{background-color:#fff3}.payment-form{padding:24px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:#374151}.form-group input,.form-group select{width:100%;padding:12px;border:2px solid #e5e7eb;border-radius:8px;font-size:16px;transition:border-color .2s;box-sizing:border-box}.form-group input:focus,.form-group select:focus{outline:none;border-color:#ec4899;box-shadow:0 0 0 3px #ec48991a}.subscription-button.single{background:#ff69b4;color:#fff;border:2px solid #ff69b4;padding:15px 20px;border-radius:8px;cursor:pointer;font-size:16px;font-weight:600;text-align:center;transition:all .3s ease;width:100%;min-height:60px;display:flex;align-items:center;justify-content:center}.subscription-button.single:hover{background:#ff1493;border-color:#ff1493;transform:translateY(-2px);box-shadow:0 4px 12px #ff69b44d}.payment-error{background:#fee;color:#c33;padding:12px;border-radius:6px;margin-bottom:16px;border:1px solid #fcc}.payment-status{padding:24px;text-align:center}.payment-instructions h3{margin-top:0;color:#1f2937}.payment-pending{color:#059669}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid #059669;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:20px auto}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.access-warning-content{padding:24px;text-align:center}.warning-icon{font-size:48px;margin-bottom:16px}.warning-actions{display:flex;gap:12px;margin-top:20px}.payment-button{background-color:#007bff;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-size:14px;font-weight:500;transition:background-color .3s ease}.pricing-button{background-color:#0d0d0d;color:#fff;border:2px solid #2669FC;padding:8px 16px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease}.pricing-button:hover{background-color:#2669fc1a;transform:translateY(-1px)}.pricing-button:focus{outline:2px solid #2669FC!important;outline-offset:2px}.payment-submit-button:hover{background:#db2777}.contact-modal-content{padding:24px;text-align:center;font-size:16px;color:#333}.pricing-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.pricing-modal{background-color:#6c757d;border-radius:12px;width:90%;max-width:500px;max-height:80vh;overflow-y:auto;box-shadow:0 10px 25px #0000004d}.pricing-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #5a6268}.pricing-modal-header h2{margin:0;color:#fff;font-size:24px;font-weight:700}.pricing-close-button{background:none;border:none;font-size:24px;cursor:pointer;color:#fff;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s}.pricing-close-button:hover{background-color:#ffffff1a}.pricing-modal-content{padding:24px}.pricing-plan{text-align:center;color:#fff}.pricing-plan h3{font-size:32px;font-weight:700;margin:0 0 24px;color:#fff}.features-text{color:#fff;font-size:16px;margin:0;text-align:center;line-height:1.5}.exam-papers{color:#0f0}.textbooks{color:tomato}.notes{color:#00bfff}.revision-questions{color:#ffda00}@media (max-width: 768px){.grades-content{padding:60px 15px 30px}.main-title{font-size:2.5rem}.subtitle-text{font-size:1.3rem}.grades-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:15px}.grade-button{padding:25px 15px}.grade-name{font-size:1.1rem}.brand-name{font-size:20px;top:15px;left:15px}.profile-section{top:15px;right:15px}.profile-button{width:36px;height:36px;font-size:14px}.payment-button{padding:6px 10px;font-size:12px}}@media (max-width: 480px){.grades-grid{grid-template-columns:repeat(2,1fr)}.grade-button{padding:20px 10px}.grade-name{font-size:1rem}}.subjects-page{min-height:100vh;background:#0d0d0d;position:relative;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.brand-name{position:fixed;top:20px;left:20px;font-size:24px;font-weight:700;color:#2669fc;z-index:1000}.profile-section{position:absolute;top:20px;right:20px;display:flex;align-items:center;gap:10px}.profile-button{width:40px;height:40px;border-radius:50%;background:transparent;border:2px solid #2669FC;color:#fff;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.profile-button:hover{background:#2669fc1a;color:#fff;transform:scale(1.05)}.payment-button{background-color:transparent!important;color:#fff!important;border:2px solid #2669FC!important;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .2s;margin-right:12px;font-size:14px;font-weight:500}.payment-button:hover{background-color:#2669fc1a!important}.subjects-content{padding:80px 20px 40px;max-width:1200px;margin:0 auto}.breadcrumb{display:flex;align-items:center;margin-bottom:30px;padding:0 20px}.breadcrumb-button{background:#0d0d0d;border:2px solid #ff1493;border-radius:6px;color:#fffc;cursor:pointer;text-decoration:none;font-size:14px;padding:6px 12px;transition:all .3s ease}.subjects-section{background:#0d0d0d;border-radius:20px;padding:40px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.subjects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;max-width:1000px;margin:0 auto}.subject-button{background:#0d0d0d;border:3px solid #2669FC;border-radius:15px;padding:30px 20px;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.subject-button:hover{transform:translateY(-5px)}.subject-button:active{transform:translateY(-2px)}.subject-button-content{position:relative;z-index:2}.subject-name{color:#fff;font-size:1.2rem;font-weight:800;display:block;text-align:center}@media (max-width: 768px){.subjects-content{padding:60px 15px 30px}.greeting-text{font-size:2rem}.section-title{font-size:1.5rem;margin-bottom:30px}.subjects-section{padding:30px 20px;border-radius:15px}.subjects-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px}.subject-button{padding:25px 15px}.subject-name{font-size:1.1rem}}@media (max-width: 480px){.subjects-grid{grid-template-columns:1fr}.subject-button{padding:20px 15px}.subject-name{font-size:1rem}}.content-types-page{min-height:100vh;background:#0d0d0d;position:relative;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.content-types-content{padding:80px 20px 40px;max-width:1200px;margin:0 auto}.content-types-section{background:#0d0d0d;border-radius:20px;padding:40px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.section-title{text-align:center;color:#fff;font-size:2rem;font-weight:600;margin-bottom:40px}.content-types-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px;max-width:1000px;margin:0 auto}.content-type-button{background:#0d0d0d;border:3px solid #39FF14;border-radius:20px;padding:40px 30px;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;text-align:center}.content-type-button:hover{transform:translateY(-8px)}.content-type-button:active{transform:translateY(-4px)}.content-type-button-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:15px}.content-type-icon{font-size:3rem;margin-bottom:10px}.content-type-name{color:#fff;font-size:1.4rem;font-weight:800;display:block;margin-bottom:8px}.content-type-description{color:#ffffffe6;font-size:1rem;font-weight:400;display:block;line-height:1.4}@media (max-width: 768px){.content-types-content{padding:60px 15px 30px}.greeting-text{font-size:2rem}.section-title{font-size:1.5rem;margin-bottom:30px}.content-types-section{padding:30px 20px;border-radius:15px}.content-types-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}.content-type-button{padding:30px 20px;border-radius:15px}.content-type-icon{font-size:2.5rem}.content-type-name{font-size:1.2rem}.content-type-description,.breadcrumb{font-size:.9rem}}@media (max-width: 480px){.content-types-grid{grid-template-columns:1fr}.content-type-button{padding:25px 20px}.content-type-icon{font-size:2rem}.content-type-name{font-size:1.1rem}.content-type-description{font-size:.85rem}}.content-list-page{min-height:100vh;background:#0d0d0d;position:relative;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.content-list-content{padding:80px 20px 40px;max-width:1200px;margin:0 auto}.greeting-section{text-align:center;margin-bottom:30px}.greeting-text{color:#fff;font-size:2.5rem;font-weight:300;margin:0;text-shadow:0 2px 4px rgba(0,0,0,.3)}.breadcrumb{display:flex;align-items:center;margin-bottom:30px;padding:0 20px;flex-wrap:wrap;gap:5px}.breadcrumb-button{background:#0d0d0d;border:2px solid;border-radius:6px;color:#fffc;cursor:pointer;text-decoration:none;font-size:14px;padding:6px 12px;transition:all .3s ease}.breadcrumb-button:nth-child(1){border-color:#ff1493}.breadcrumb-button:nth-child(3){border-color:#00bfff}.breadcrumb-button:nth-child(5){border-color:red}.breadcrumb-button:hover{color:#fff}.breadcrumb-separator{color:#fff9;margin:0 10px;font-size:1.2rem}.breadcrumb-item{color:#fffc;font-size:1rem;font-weight:500}.breadcrumb-item.active{color:#fff;font-weight:600}.content-list-section{background:#0d0d0d;border-radius:20px;padding:40px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.section-title{text-align:center;color:#fff;font-size:1.8rem;font-weight:600;margin-bottom:40px;line-height:1.3}.loading-container{text-align:center;padding:60px 20px}.loading-spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.no-content{text-align:center;padding:60px 20px;color:#666;font-size:1.1rem}.content-results{max-width:800px;margin:0 auto}.content-list{list-style:none;padding:0;margin:0}.content-item{display:flex;justify-content:space-between;align-items:center;padding:20px;margin-bottom:15px;background:#fff;border-radius:12px;box-shadow:0 4px 15px #0000001a;transition:all .3s ease}.content-item:hover{transform:translateY(-2px);box-shadow:0 8px 25px #00000026}.content-info{display:flex;flex-direction:column;flex:1;margin-right:20px}.content-title{font-size:1.1rem;font-weight:600;color:#333;margin-bottom:5px;line-height:1.4}.content-size{font-size:.9rem;color:#666;font-weight:400}.content-download-btn{background:#0d0d0d;color:#fff;border:3px solid #39FF14;padding:12px 24px;border-radius:8px;cursor:pointer;font-weight:600;font-size:.9rem;transition:all .3s ease}.content-download-btn:hover{transform:translateY(-2px)}.content-download-btn:active{transform:translateY(0)}.contact-button{background:transparent;border:2px solid #007bff;color:#007bff;padding:8px 16px;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease}.contact-button:hover{background:#007bff;color:#fff}@media (max-width: 768px){.content-list-content{padding:60px 15px 30px}.greeting-text{font-size:2rem}.section-title{font-size:1.5rem;margin-bottom:30px}.content-list-section{padding:30px 20px;border-radius:15px}.content-item{flex-direction:column;align-items:stretch;gap:15px}.content-info{margin-right:0;text-align:center}.content-download-btn{width:100%;padding:15px}.breadcrumb{font-size:.9rem}}@media (max-width: 480px){.content-item{padding:15px}.content-title{font-size:1rem}.content-size{font-size:.85rem}}.profile-dropdown{position:absolute;top:100%;right:0;background:#1a1a1a;border:2px solid #2669FC;border-radius:10px;padding:15px;min-width:200px;z-index:1000;box-shadow:0 4px 20px #2669fc4d}.profile-dropdown-content{display:flex;flex-direction:column;gap:10px}.user-email-display{color:#fff;margin:0;font-size:14px;padding:5px 0;border-bottom:1px solid #333}.dropdown-logout-btn{background:transparent;border:2px solid #2669FC;color:#fff;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .3s ease;font-size:14px}.dropdown-logout-btn:hover{background:#2669fc;color:#fff}.dropdown-logout-btn:disabled{opacity:.6;cursor:not-allowed}.signin-modal-button{background:transparent;border:2px solid #2669FC;color:#000;padding:12px 24px;border-radius:8px;cursor:pointer;transition:all .3s ease;font-size:16px;font-weight:600;margin-top:15px}.signin-modal-button:hover{background:#2669fc;color:#fff}@font-face{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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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:"0.16.22"}.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}.notes-revision-page{padding:20px;background:linear-gradient(135deg,#639,#96c);min-height:100vh;width:100%;box-sizing:border-box}.back-to-home-btn{background:#fff;color:#333;border:1px solid #ddd;padding:10px 20px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease;text-decoration:none;display:flex;align-items:center;gap:8px}.back-to-home-btn:hover{background:#f5f5f5;transform:translateY(-1px);box-shadow:0 2px 8px #0000001a}.notes-title{color:#fff;margin:0;font-size:2rem;text-shadow:0 2px 4px rgba(0,0,0,.3)}.revision-content{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;align-items:center}.notes-form-container{background:#fffffff2;padding:30px;border-radius:15px;box-shadow:0 8px 32px #0000001a;width:100%;max-width:600px;margin-bottom:30px}.notes-form-container h2{color:#333;margin-bottom:25px;font-size:1.5rem}.level-selection{display:flex;gap:15px;align-items:center;flex-wrap:wrap}.or-divider{color:#666;font-weight:500;font-size:.9rem;padding:0 10px}.notes-select,.notes-input{padding:12px;border:2px solid #e9ecef;border-radius:5px;font-size:14px;transition:border-color .3s ease}.notes-select:focus,.notes-input:focus{outline:none;border-color:#007bff}.error-message p{margin:0}.generate-btn{background:#28a745;color:#fff;border:none;padding:15px 30px;border-radius:5px;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .3s ease}.generate-btn:hover:not(:disabled){background:#218838}.generate-btn:disabled{background:#6c757d;cursor:not-allowed}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #e9ecef;flex-wrap:wrap;gap:15px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#fff;padding:30px;border-radius:15px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto}.modal-content h2{color:#333;margin-bottom:20px;text-align:center}.subscription-options{display:flex;flex-direction:column;gap:15px;margin:20px 0}.subscription-option{display:flex;align-items:center;gap:12px;padding:15px;border:2px solid #e9ecef;border-radius:8px;cursor:pointer;transition:all .3s ease}.subscription-option:hover{border-color:#007bff;background:#f8f9fa}.subscription-option input[type=radio]{margin:0}.subscription-details{display:flex;flex-direction:column;gap:4px}.subscription-details strong{color:#333;font-size:16px}.subscription-details small{color:#666;font-size:14px}.modal-buttons{display:flex;gap:15px;justify-content:flex-end;margin-top:25px}.cancel-button{background:#6c757d;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-weight:500}.cancel-button:hover{background:#5a6268}.pay-button{background:#28a745;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-weight:600}.pay-button:hover:not(:disabled){background:#218838}.pay-button:disabled{background:#6c757d;cursor:not-allowed}@media (max-width: 768px){.notes-revision-page{padding:15px}.revision-content{flex-direction:column;align-items:stretch}.notes-form-container{max-width:100%}.content-header{flex-direction:column;align-items:stretch;text-align:center}.download-pdf-btn{justify-content:center;width:100%}.notes-header{flex-direction:column;align-items:flex-start;gap:15px}.notes-title{font-size:1.5rem}.notes-form-container{padding:20px}.content-header{flex-direction:column;align-items:flex-start;gap:15px}.download-pdf-btn{width:100%;justify-content:center}.level-selection{flex-direction:column;align-items:stretch}.notes-select{width:100%}.modal-buttons{flex-direction:column}.cancel-button,.pay-button{width:100%}}.notes-container{padding:20px;background:linear-gradient(135deg,#639,#96c);min-height:100vh;width:100%;box-sizing:border-box}.notes-header{display:flex;align-items:center;margin-bottom:30px;gap:20px}.back-button{background:#fff;color:#333;border:1px solid #ddd;padding:10px 20px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease;text-decoration:none;display:flex;align-items:center;gap:8px}.back-button:hover{background:#f5f5f5;transform:translateY(-1px);box-shadow:0 2px 8px #0000001a}.notes-header h1{color:#fff;margin:0;font-size:2rem;text-shadow:0 2px 4px rgba(0,0,0,.3)}.notes-content{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;align-items:center}.notes-form-section{background:#fffffff2;padding:30px;border-radius:15px;box-shadow:0 8px 32px #0000001a;width:100%;max-width:600px;margin-bottom:30px}.notes-form-section h2{color:#333;margin-bottom:25px;font-size:1.5rem}.notes-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:600;color:#333;font-size:14px}.radio-group{display:flex;gap:20px}.radio-label{display:flex;align-items:center;gap:8px;font-weight:400!important;cursor:pointer}.radio-label input[type=radio]{margin:0}.form-group input,.form-group textarea{padding:12px;border:2px solid #e9ecef;border-radius:5px;font-size:14px;transition:border-color .3s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#007bff}.form-group textarea{resize:vertical;min-height:80px}.error-message{background:#f8d7da;color:#721c24;padding:12px;border-radius:5px;border:1px solid #f5c6cb;font-size:14px}.generate-button{background:#28a745;color:#fff;border:none;padding:15px 30px;border-radius:5px;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .3s ease}.generate-button:hover:not(:disabled){background:#218838}.generate-button:disabled{background:#6c757d;cursor:not-allowed}.notes-results{background:#fff;padding:30px;border-radius:10px;box-shadow:0 2px 10px #0000001a;max-height:80vh;overflow-y:auto}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #e9ecef}.content-header h3{color:#333;margin:0;font-size:1.3rem}.download-pdf-btn{background:#dc3545;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-size:14px;font-weight:600;align-items:center;gap:8px;transition:background-color .3s ease}.download-pdf-btn:hover{background:#c82333}.content-display{line-height:1.8}.generated-content{background:#fffffff2;border-radius:15px;padding:25px;box-shadow:0 8px 32px #0000001a;width:100%;display:flex;flex-direction:column;min-height:0}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:15px}.generated-content h2{color:#333;font-size:1.5rem;margin:0;font-weight:600}.download-pdf-btn{background:linear-gradient(135deg,#28a745,#20c997);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px}.download-pdf-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px #28a74566}.pdf-header{text-align:center;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid #667eea}.pdf-header h1{color:#2c3e50;font-size:2.2rem;font-weight:700;margin:0 0 10px}.pdf-header p{color:#666;font-size:1.1rem;margin:0;font-weight:500}.content-display{background:#f8f9fa;border:1px solid #e9ecef;border-radius:8px;padding:20px;overflow-y:auto;flex:1}.markdown-h1{color:#2c3e50;font-size:2rem;font-weight:700;margin:30px 0 20px;border-bottom:3px solid #667eea;padding-bottom:10px}.markdown-h2{color:#34495e;font-size:1.6rem;font-weight:600;margin:25px 0 15px;border-bottom:2px solid #95a5a6;padding-bottom:8px}.markdown-h3{color:#2c3e50;font-size:1.3rem;font-weight:600;margin:20px 0 12px}.markdown-h4{color:#34495e;font-size:1.1rem;font-weight:600;margin:15px 0 10px}.markdown-p{color:#2c3e50;font-size:1rem;line-height:1.7;margin:12px 0}.markdown-ul,.markdown-ol{margin:15px 0;padding-left:25px}.markdown-li{color:#2c3e50;margin:8px 0;line-height:1.6}.markdown-code-inline{background:#f1f2f6;color:#e74c3c;padding:2px 6px;border-radius:4px;font-family:Courier New,monospace;font-size:.9rem}.markdown-code-block{background:#2c3e50;color:#ecf0f1;padding:15px;border-radius:8px;font-family:Courier New,monospace;font-size:.9rem;line-height:1.5;overflow-x:auto;display:block;margin:15px 0}.markdown-pre{margin:0}.markdown-blockquote{border-left:4px solid #667eea;background:#f8f9fa;margin:20px 0;padding:15px 20px;font-style:italic;color:#495057}.markdown-strong{font-weight:700;color:#2c3e50}.markdown-em{font-style:italic;color:#34495e}.katex{font-size:1.1em!important}.katex-display{margin:20px 0!important;text-align:center}.content-display>*:first-child{margin-top:0!important}.content-display>*:last-child{margin-bottom:0!important}.notes-results::-webkit-scrollbar{width:8px}.notes-results::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}.notes-results::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}.notes-results::-webkit-scrollbar-thumb:hover{background:#a8a8a8}@media (max-width: 768px){.notes-container{padding:15px}.notes-content{flex-direction:column;align-items:stretch}.notes-form-section{max-width:100%}.content-header{flex-direction:column;align-items:stretch;text-align:center}.download-pdf-btn{justify-content:center;width:100%}.notes-header{flex-direction:column;align-items:flex-start;gap:15px}.notes-header h1{font-size:1.5rem}.notes-form-section,.notes-results{padding:20px}.content-header{flex-direction:column;align-items:flex-start;gap:15px}.download-pdf-btn{width:100%;justify-content:center}}.signup-container{min-height:100vh;background:linear-gradient(135deg,#ff7e5f,#feb47b);position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.signup-content{width:500px;max-width:90vw;background-color:#fff;border:2px solid #333;border-radius:12px;padding:40px 30px;display:flex;flex-direction:column;align-items:center;gap:20px;margin:0 auto}.auth-toggle{display:flex;gap:10px;margin-bottom:20px}.toggle-btn{flex:1;padding:10px 20px;border:2px solid #333;border-radius:6px;background-color:#fff;color:#000;font-family:Helvetica,sans-serif;font-size:14px;font-weight:700;cursor:pointer;transition:all .2s}.toggle-btn.active{background-color:#639;color:#fff}.toggle-btn:hover{background-color:#f0f0f0}.toggle-btn.active:hover{background-color:#528}.auth-form{display:flex;flex-direction:column;gap:15px;width:100%}.form-group{display:flex;flex-direction:column;gap:5px;width:100%}.form-label{font-family:Helvetica,sans-serif;font-size:14px;font-weight:700;color:#333;margin-bottom:5px}.form-input{padding:15px 20px;border:2px solid #333;border-radius:6px;font-family:Helvetica,sans-serif;font-size:16px;background-color:#fff;color:#000;transition:border-color .2s;width:100%;box-sizing:border-box;min-width:300px}.form-input:focus{outline:none;border-color:#639}.password-input-container{position:relative;display:flex;align-items:center;width:100%}.password-input{padding-right:140px}.password-toggle-btn{position:absolute;right:10px;background:none;border:none;color:#639;font-family:Helvetica,sans-serif;font-size:12px;font-weight:700;cursor:pointer;padding:5px 8px;border-radius:4px;transition:all .2s;white-space:nowrap}.password-toggle-btn:hover{background-color:#f0f0f0;color:#528}.password-toggle-btn:focus{outline:none;background-color:#f0f0f0}.auth-submit-btn{padding:15px 40px;border:2px solid #333;border-radius:6px;background-color:#639;color:#fff;font-family:Helvetica,sans-serif;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s;margin-top:10px;width:100%;box-sizing:border-box;min-width:300px}.auth-submit-btn:hover{background-color:#528;transform:translateY(-1px)}.auth-submit-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.welcome-section{background-color:#fff;border:2px solid #333;border-radius:12px;padding:40px 30px;text-align:center}.welcome-section h1{font-family:Helvetica,sans-serif;font-size:24px;font-weight:700;color:#000;margin:0 0 30px;letter-spacing:1px}.signup-button{background-color:#fff;border:2px solid #333;border-radius:8px;padding:12px 30px;font-family:Helvetica,sans-serif;font-size:16px;font-weight:700;color:#000;cursor:pointer;transition:all .2s;min-width:200px;display:flex;align-items:center;justify-content:center;gap:8px}.google-icon{background-color:#000;color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.signup-button:hover{background-color:#f0f0f0;transform:translateY(-1px)}.signup-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.features-section{background-color:#fff;border:2px solid #333;border-radius:12px;padding:30px}.features-section h2{font-family:Helvetica,sans-serif;font-size:20px;font-weight:700;color:#000;margin:0 0 20px;text-align:center}.features-list{list-style:none;padding:0;margin:0}.features-list li{font-family:Helvetica,sans-serif;font-size:16px;color:#000;margin-bottom:12px;padding-left:0}.features-list li:first-child{color:#e91e63}.features-list li:nth-child(2){color:#ff9800}.features-list li:nth-child(3){color:tomato}.auth-error{position:fixed;top:80px;left:50%;transform:translate(-50%);background-color:#fee;color:#c33;padding:12px 20px;border-radius:6px;border:1px solid #fcc;z-index:1000;max-width:90%;text-align:center}.auth-message{position:fixed;top:80px;left:50%;transform:translate(-50%);background-color:#efe;color:#363;padding:12px 20px;border-radius:6px;border:1px solid #cfc;z-index:1000;max-width:90%;text-align:center}@media (min-width: 768px){.signup-content{max-width:800px;flex-direction:row;gap:40px;align-items:stretch}.welcome-section{flex:1;display:flex;flex-direction:column;justify-content:center;padding:50px 40px}.welcome-section h1{font-size:28px;margin-bottom:40px}.features-section{flex:1;display:flex;flex-direction:column;justify-content:center;padding:40px}.features-section h2{font-size:22px;margin-bottom:25px;text-align:left}.features-list li{font-size:18px;margin-bottom:15px}.signup-button{padding:15px 40px;font-size:18px}}@media (min-width: 1024px){.signup-content{max-width:900px}.welcome-section{padding:60px 50px}.features-section{padding:50px}}