.workspace-layout-container{display:flex;flex-direction:column;min-height:100vh;background-color:#f8fafc;font-family:Nunito,sans-serif}.global-header{height:70px;background:#fff;border-bottom:1px solid #E2E8F0;display:flex;align-items:center;justify-content:space-between;padding:0 30px;box-shadow:0 2px 4px #94a3b81a;flex-shrink:0}.global-header .brand{font-weight:900;font-size:1.4rem;color:#6366f1;display:flex;align-items:center;gap:10px}.workspace-main-content{flex:1;display:flex;flex-direction:column;width:100%}@media(max-width:768px){.global-header{padding:0 15px}}:root{--primary-lp: #585EE7;--primary-dark-lp: #312E81;--text-main-lp: #1E293B;--text-muted-lp: #64748B;--bg-lp: #F8FAFC}.landing-container{position:absolute;top:0;left:0;width:100vw;height:100vh;overflow-y:scroll;overflow-x:hidden;background-color:#fff;color:var(--text-main-lp);font-family:Nunito,sans-serif;scroll-behavior:smooth;z-index:999}.landing-nav{display:flex;justify-content:space-between;align-items:center;padding:20px 40px;max-width:1200px;margin:0 auto}.nav-brand{font-size:1.5rem;font-weight:900;color:var(--primary-lp)}.nav-links{display:flex;gap:20px;align-items:center}.btn-login{text-decoration:none;color:var(--text-main-lp);font-weight:700}.btn-cta-small{text-decoration:none;background-color:var(--primary-lp);color:#fff;padding:10px 20px;border-radius:50px;font-weight:700;transition:all .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 10px #585ee74d}.btn-cta-small:hover{transform:translateY(-2px) scale(1.05);box-shadow:0 6px 15px #585ee766}.hero-section{text-align:center;padding:100px 20px 60px;background:radial-gradient(circle at top center,#eef2ff,#fff 70%)}.badge-new{background:linear-gradient(135deg,#ffedd5,#fef3c7);color:#d97706;padding:8px 18px;border-radius:30px;font-size:.9rem;font-weight:800;text-transform:uppercase;box-shadow:0 4px 10px #f59e0b26}.hero-content h1{font-size:3.5rem;margin:20px 0;line-height:1.1;font-weight:900}.highlight{color:var(--primary-lp);position:relative;display:inline-block}.highlight:after{content:"";position:absolute;bottom:5px;left:0;width:100%;height:10px;background:#585ee726;z-index:-1;border-radius:4px}.hero-subtitle{font-size:1.2rem;color:var(--text-muted-lp);max-width:700px;margin:0 auto 40px;line-height:1.6}.btn-cta-large{display:inline-block;background:linear-gradient(135deg,var(--primary-lp) 0%,#818CF8 100%);color:#fff;padding:18px 40px;border-radius:50px;font-size:1.2rem;font-weight:800;text-decoration:none;box-shadow:0 10px 25px -5px #585ee766;transition:all .3s cubic-bezier(.34,1.56,.64,1)}.btn-cta-large:hover{transform:translateY(-5px) scale(1.05);box-shadow:0 15px 35px -5px #585ee780}.sub-text{margin-top:15px;font-size:.9rem;color:var(--text-muted-lp)}.mockup-placeholder{width:100%;max-width:800px;height:400px;background:linear-gradient(135deg,#e2e8f0,#cbd5e1);margin:60px auto 0;border-radius:30px 30px 0 0;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff;font-weight:800;box-shadow:0 25px 50px -12px #00000026;border:4px solid white;border-bottom:none}.studio-section{padding:80px 20px;text-align:center;background:#fff}.studio-header{margin-bottom:50px}.studio-header h2{font-size:2.5rem;color:var(--text-main-lp);margin-bottom:15px;font-weight:900}.studio-header p{font-size:1.2rem;color:var(--primary-lp);font-weight:800;max-width:800px;margin:0 auto}.studio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;max-width:1200px;margin:0 auto}.studio-card{background:#fff;padding:40px 20px;border-radius:28px;border:2px solid transparent;transition:all .3s cubic-bezier(.34,1.56,.64,1);display:flex;flex-direction:column;align-items:center;box-shadow:0 10px 30px #00000008}.studio-card:hover{transform:translateY(-10px) rotate(1deg);box-shadow:0 20px 40px -10px #585ee726;border-color:#eef2ff}.studio-icon{font-size:3.5rem;margin-bottom:20px;background:#eef2ff;width:90px;height:90px;display:flex;align-items:center;justify-content:center;border-radius:50%;box-shadow:inset 0 0 20px #585ee71a}.studio-card h4{font-size:1.3rem;color:var(--text-main-lp);margin-bottom:15px;font-weight:800}.studio-card p{font-size:.95rem;color:var(--text-muted-lp);line-height:1.5}.bg-math-wrapper{left:0;width:100%;pointer-events:none;height:40%;z-index:1;display:flex;justify-content:center;overflow:hidden}.bg-math-img{max-width:1400px;mix-blend-mode:multiply;opacity:1}.features-section{padding:80px 20px;background:#f8fafc;position:relative}.feature-row{display:flex;align-items:center;justify-content:center;gap:60px;max-width:1000px;margin:0 auto 80px;position:relative;z-index:2}.feature-row.reverse{flex-direction:row-reverse}.feature-text{flex:1}.feature-text h3{font-size:2rem;margin-bottom:15px;color:var(--text-main-lp)}.feature-text p{font-size:1.1rem;line-height:1.6;color:var(--text-muted-lp)}.feature-visual{flex:1;height:300px;background:linear-gradient(135deg,#eef2ff,#e0e7ff);border-radius:36px;box-shadow:0 15px 35px #585ee71a;display:flex;align-items:center;justify-content:center;font-size:6rem;transform:rotate(-2deg);transition:all .4s cubic-bezier(.34,1.56,.64,1)}.feature-row.reverse .feature-visual{transform:rotate(2deg)}.feature-visual:hover{transform:translateY(-10px) scale(1.05) rotate(0)}.personas-section{display:flex;gap:40px;justify-content:center;padding:80px 20px;max-width:1000px;margin:0 auto;flex-wrap:wrap}.persona-card{flex:1;padding:40px;border-radius:30px;min-width:300px;transition:all .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 10px 20px #00000005}.persona-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #00000014}.persona-card.parent{background:#fff7ed;border:2px solid #FFEDD5}.persona-card.student{background:#f5f3ff;border:2px solid #EDE9FE}.persona-card h4{font-size:1.4rem;font-weight:900;margin-bottom:20px}.persona-card ul{list-style:none;padding:0;margin-top:20px}.persona-card li{margin-bottom:15px;font-weight:700;font-size:1.05rem;color:var(--text-main-lp)}.pwa-section{padding:80px 20px;background:#fff;text-align:center}.pwa-content{max-width:1000px;margin:0 auto}.pwa-content h2{font-size:2.5rem;font-weight:900;color:var(--text-main-lp);margin-bottom:15px}.pwa-content p{font-size:1.1rem;color:var(--text-muted-lp);margin-bottom:40px;line-height:1.6}.pwa-instructions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;text-align:left}.pwa-card{background:#f8fafc;border:2px solid transparent;border-radius:30px;padding:30px;transition:all .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 10px 20px #00000005}.pwa-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #00000014}.pwa-card.apple{border-color:#e2e8f0}.pwa-card.apple:hover{border-color:#cbd5e1}.pwa-card.android{border-color:#e0e7ff;background:#f5f3ff}.pwa-card.android:hover{border-color:#c7d2fe}.pwa-card h4{font-size:1.4rem;font-weight:900;margin-bottom:20px;color:var(--text-main-lp)}.pwa-card ol{padding-left:20px;margin:0;color:var(--text-muted-lp);line-height:1.6;font-size:1.05rem}.pwa-card li{margin-bottom:12px;font-weight:700}.pwa-card strong{color:var(--text-main-lp);font-weight:900}.tech-section{text-align:center;padding:100px 20px;background:linear-gradient(135deg,var(--primary-dark-lp),var(--primary-lp));color:#fff;border-radius:40px 40px 0 0}.tech-badge{display:inline-block;background:#fff3;padding:8px 20px;border-radius:30px;font-size:.95rem;font-weight:800;margin-bottom:20px;border:1px solid rgba(255,255,255,.3);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.tech-section h2{font-size:2.5rem;font-weight:900;margin-bottom:20px}.tech-section p{max-width:600px;margin:0 auto;color:#fffc;line-height:1.6;font-size:1.1rem}.subjects-section{padding:60px 20px;text-align:center}.subjects-grid{display:flex;justify-content:center;gap:30px;margin-top:30px;font-size:3rem;flex-wrap:wrap}.landing-footer{background:#fff;padding:60px 20px 20px;border-top:1px solid #E2E8F0}.footer-content{display:flex;justify-content:space-between;max-width:1000px;margin:0 auto 40px;flex-wrap:wrap;gap:40px}.footer-col h5{font-size:1.1rem;margin-bottom:20px;color:var(--text-main-lp)}.footer-col a,.footer-col span.fake-link{display:block;margin-bottom:10px;color:var(--text-muted-lp);text-decoration:none;cursor:pointer}.footer-col a:hover{color:var(--primary-lp)}.footer-copyright{text-align:center;color:#94a3b8;font-size:.9rem;border-top:1px solid #F1F5F9;padding-top:20px}@media(max-width:768px){.hero-content h1{font-size:2.5rem}.feature-row{flex-direction:column;text-align:center;gap:30px}.feature-row.reverse{flex-direction:column}.nav-links .btn-login{display:none}}.privacy-container{max-width:800px;margin:0 auto;padding:40px 20px;font-family:Nunito,sans-serif;color:#334155;background-color:#fff}.privacy-header{margin-bottom:50px;border-bottom:1px solid #E2E8F0;padding-bottom:20px}.back-link{display:inline-block;margin-bottom:20px;text-decoration:none;color:#6366f1;font-weight:700}.privacy-header h1{font-size:2.5rem;color:#1e293b;margin:0 0 10px}.privacy-content section{margin-bottom:40px}.privacy-content h2{color:#4f46e5;font-size:1.5rem;margin-bottom:15px}.privacy-content p,.privacy-content li{line-height:1.7;font-size:1rem;margin-bottom:10px}.privacy-content ul{padding-left:20px;margin-bottom:20px}.privacy-footer{margin-top:60px;padding-top:20px;border-top:1px solid #E2E8F0;text-align:center;font-size:.9rem;color:#94a3b8}.profile-selection-container{display:flex;flex-direction:column;align-items:center;padding:40px 20px}.profile-title{font-size:2rem;font-weight:700;margin-bottom:2.5rem;text-align:center;color:var(--text-color, #333)}.profiles-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;max-width:800px}.profile-card{display:flex;flex-direction:column;align-items:center;cursor:pointer;width:130px;transition:transform .2s ease-in-out}.profile-card:hover{transform:translateY(-5px)}.profile-avatar{width:100px;height:100px;background-color:#f0f4f8;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700;color:#4a90e2;margin-bottom:12px;box-shadow:0 4px 12px #0000000d;border:2px solid transparent;transition:all .2s}.profile-card:hover .profile-avatar{border-color:#4a90e2;box-shadow:0 6px 16px #4a90e233}.profile-name{font-size:1.1rem;font-weight:500;text-align:center;color:#666}.profile-card:hover .profile-name{color:#4a90e2}.empty-slot .add-avatar{background-color:transparent;border:2px dashed #ccc;color:#ccc;box-shadow:none}.empty-slot:hover .add-avatar{border-color:#4a90e2;color:#4a90e2;background-color:#f8fbff}.profile-form{display:flex;flex-direction:column;align-items:center;width:100%}.profile-form input{width:100%;padding:10px;margin-bottom:10px;border-radius:8px;border:1px solid #ddd;text-align:center;font-family:inherit;outline:none}.profile-form input:focus{border-color:#4a90e2}.form-actions{display:flex;gap:8px;width:100%}.btn-save{flex:1;background-color:#4a90e2;color:#fff;border:none;border-radius:6px;padding:8px;font-weight:700;cursor:pointer}.btn-cancel{background-color:#f1f1f1;color:#666;border:none;border-radius:6px;padding:8px 12px;cursor:pointer}.profile-loading{text-align:center;padding:40px;color:#666}.profile-menu-container{position:fixed;bottom:24px;left:24px;z-index:1000;font-family:inherit}.profile-menu-trigger{display:flex;align-items:center;gap:12px;background-color:#fff;border:1px solid #e0e0e0;border-radius:50px;padding:6px 16px 6px 6px;cursor:pointer;box-shadow:0 4px 12px #00000014;transition:all .2s ease}.profile-menu-trigger:hover{background-color:#f8fbff;border-color:#4a90e2;transform:translateY(-2px)}.trigger-avatar{width:32px;height:32px;border-radius:50%;background-color:#4a90e2;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}.trigger-name{font-weight:600;color:#333;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.trigger-chevron{font-size:.8rem;color:#888;transition:transform .3s ease}.trigger-chevron.rotate{transform:rotate(180deg)}.profile-dropdown{position:absolute;bottom:100%;left:0;margin-bottom:12px;background-color:#fff;border-radius:16px;box-shadow:0 8px 24px #00000026;width:240px;overflow:hidden;opacity:0;visibility:hidden;transform:translateY(20px) scale(.95);transform-origin:bottom left;transition:all .3s cubic-bezier(.175,.885,.32,1.275)}.profile-dropdown.open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}.dropdown-header{display:flex;align-items:center;gap:12px;padding:16px;border-bottom:1px solid #f0f0f0;background-color:#fafafa}.dropdown-avatar{width:40px;height:40px;border-radius:12px;background-color:#4a90e2;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem}.dropdown-name{font-weight:700;color:#333;font-size:1.1rem}.dropdown-btn-logout{display:flex;align-items:center;gap:10px;width:100%;padding:16px;background:none;border:none;cursor:pointer;text-align:left;font-size:1rem;color:#e24a4a;font-weight:500;transition:background-color .2s}.dropdown-btn-logout:hover{background-color:#fff0f0}@media(max-width:768px){.profile-menu-container{bottom:16px;left:16px}}.cheatsheet-panel{display:flex;flex-direction:column;height:100%;max-height:100%;overflow:hidden;background-color:var(--primary-light)}.cheatsheet-top-nav{margin-bottom:15px;padding:10px 5px 0;flex-shrink:0}.back-link{background:none;border:none;color:#64748b;font-size:.9rem;font-weight:600;cursor:pointer;padding:5px 10px;border-radius:8px;transition:all .2s;display:inline-flex;align-items:center}.back-link:hover{color:#4f46e5;background-color:#f1f5f9}.cheatsheet-header{display:flex;flex-direction:column;gap:10px;margin-bottom:10px;padding:0 10px 15px;border-bottom:1px solid #E2E8F0;flex-shrink:0}.cheatsheet-header.detail-header{flex-direction:column;align-items:flex-start}.cheatsheet-header h2{font-size:1.25rem!important;color:#1e293b;margin:0;font-weight:800}.sheet-title-main{font-size:1.4rem!important;color:#4f46e5!important;line-height:1.3;font-weight:800}.cheatsheet-list{display:flex;flex-direction:column;gap:16px;flex:1;overflow-y:auto;padding:10px}.sheet-list-item-btn{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid #E2E8F0;border-radius:12px;padding:18px 20px;cursor:pointer;text-align:left;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008;flex-shrink:0}.sheet-list-item-btn:hover{border-color:#a5b4fc;transform:translateY(-3px);box-shadow:0 10px 15px -3px #4f46e51a,0 4px 6px -2px #4f46e50d}.sheet-list-title{font-weight:700;font-size:1rem;color:#1e293b;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:15px}.sheet-list-date{font-size:.75rem;font-weight:600;color:#64748b;background:#f1f5f9;padding:6px 10px;border-radius:20px}.sheet-content-scroll{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:16px;padding:10px 10px 40px;align-items:center}.sheet-content-scroll::-webkit-scrollbar,.cheatsheet-list::-webkit-scrollbar,.sheet-form-scroll::-webkit-scrollbar{width:6px}.sheet-content-scroll::-webkit-scrollbar-thumb,.cheatsheet-list::-webkit-scrollbar-thumb,.sheet-form-scroll::-webkit-scrollbar-thumb{background-color:#cbd5e1;border-radius:10px}.training-toggle label{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:700;color:#4f46e5;cursor:pointer;background:#eef2ff;padding:8px 16px;border-radius:20px;transition:all .2s ease;border:1px solid #C7D2FE}.training-toggle label:hover{background:#e0e7ff}.training-toggle input[type=checkbox]{accent-color:#4F46E5;width:16px;height:16px;cursor:pointer}.sheet-item{padding:16px 20px;border-radius:12px;font-size:.95rem;position:relative;overflow:hidden;background:#fff;box-shadow:0 2px 5px #0000000a;border:1px solid #F1F5F9;width:90%;flex-shrink:0}.sheet-item strong{display:block;margin-bottom:8px;color:#0f172a;font-size:1.05rem}.sheet-item p{margin:0;color:#475569;line-height:1.6}.sheet-item.note{border-left:5px solid #0EA5E9}.sheet-item.qa{border-left:5px solid #D946EF}.reveal-btn{background:#f1f5f9;color:#475569;border:1px solid #E2E8F0;padding:8px 16px;border-radius:8px;font-weight:600;cursor:pointer;display:inline-block;text-align:center;transition:all .2s ease-in-out;font-size:.9rem;margin-top:8px}.reveal-btn:hover{background:#e2e8f0;border-color:#cbd5e1;color:#1e293b;transform:translateY(-1px);box-shadow:0 2px 6px #0000000d}.summary-carousel-container{width:90%;background:linear-gradient(135deg,#eef2ff,#e0e7ff);border:1px solid #C7D2FE;border-radius:16px;padding:15px;margin-bottom:20px;box-shadow:0 4px 10px #4f46e50d;flex-shrink:0}.summary-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding:0 5px}.summary-header h3{margin:0;font-size:.95rem;color:#4f46e5;font-weight:800;text-transform:uppercase;letter-spacing:.5px}.summary-counter{background:#fff;color:#4f46e5;padding:2px 8px;border-radius:10px;font-size:.75rem;font-weight:700}.summary-card{display:flex;align-items:center;gap:10px}.summary-text-content{flex:1;text-align:center;font-size:1rem;font-weight:600;color:#1e293b;line-height:1.5;min-height:3rem;display:flex;align-items:center;justify-content:center}.summary-nav-btn{background:#fff;border:1px solid #C7D2FE;color:#4f46e5;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;font-size:.8rem;flex-shrink:0}.summary-nav-btn:hover:not(:disabled){background:#4f46e5;color:#fff;transform:scale(1.1)}.summary-nav-btn:disabled{opacity:.3;cursor:not-allowed;background:#f1f5f9}.imagen-generation-btn{background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff!important;border:none;padding:14px 32px;border-radius:9999px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 10px #8b5cf640;text-align:center;display:inline-block;width:auto}.imagen-generation-btn:hover{transform:translateY(-2px);box-shadow:0 6px 14px #8b5cf666}.sheet-form-scroll{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:20px;padding:10px 10px 40px}.form-group{flex-shrink:0}.form-group label{display:block;font-size:.9rem;font-weight:700;color:#475569;margin-bottom:8px}.form-input,.form-textarea{width:100%;border:1px solid #CBD5E1;border-radius:8px;padding:12px 14px;font-family:inherit;font-size:.95rem;transition:all .2s ease;box-sizing:border-box;background-color:#f8fafc}.form-input:focus,.form-textarea:focus{outline:none;border-color:#4f46e5;background-color:#fff;box-shadow:0 0 0 3px #4f46e51a}.mb-2{margin-bottom:10px}.mt-3{margin-top:20px}.form-textarea{resize:vertical;min-height:100px}.form-items-list{display:flex;flex-direction:column;gap:16px}.form-item-box{background:#fff;border:1px solid #E2E8F0;border-radius:12px;padding:16px;box-shadow:0 2px 4px #00000005;flex-shrink:0}.form-item-box.note{border-left:5px solid #0EA5E9}.form-item-box.qa{border-left:5px solid #D946EF}.form-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:.9rem;font-weight:700;color:#334155}.btn-delete-item{background:#fee2e2;border:none;color:#ef4444;cursor:pointer;font-size:.8rem;padding:4px 8px;border-radius:4px;font-weight:700;transition:background .2s}.btn-delete-item:hover{background:#fecaca}.form-add-buttons{display:flex;gap:12px;flex-shrink:0}.btn-add-block{flex:1;border:2px dashed #CBD5E1;background:transparent;padding:12px;border-radius:10px;cursor:pointer;font-weight:700;transition:all .2s ease}.btn-add-block.note-btn{color:#0ea5e9;border-color:#bae6fd}.btn-add-block.note-btn:hover{background:#f0f9ff;border-color:#0ea5e9}.btn-add-block.qa-btn{color:#d946ef;border-color:#f87171}.btn-add-block.qa-btn:hover{background:#fdf4ff;border-color:#d946ef}.cheatsheet-bottom-actions{padding:16px 20px;flex-shrink:0;background-color:var(--primary-light);border-top:1px solid #E2E8F0;display:flex;flex-direction:column;gap:12px}.cheatsheet-bottom-actions .btn-primary{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;border:none;padding:14px 20px;border-radius:12px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 10px #4f46e540;display:flex;justify-content:center;align-items:center}.cheatsheet-bottom-actions .btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 14px #4f46e566;background:linear-gradient(135deg,#4338ca,#4f46e5)}.cheatsheet-bottom-actions .btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 4px #4f46e533}.cheatsheet-bottom-actions .btn-primary:disabled{background:#cbd5e1;box-shadow:none;cursor:not-allowed;color:#f1f5f9}.cheatsheet-bottom-actions .btn-secondary{background:#fff;color:#475569;border:2px solid #E2E8F0;padding:12px 20px;border-radius:12px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s ease;display:flex;justify-content:center;align-items:center}.cheatsheet-bottom-actions .btn-secondary:hover{border-color:#94a3b8;color:#1e293b;background:#f8fafc}.cheatsheet-empty{text-align:center;padding:40px 20px;color:#64748b;background:#fff;border-radius:12px;border:2px dashed #CBD5E1;margin:10px;display:flex;flex-direction:column;align-items:center;gap:10px}.cheatsheet-empty h3{color:#1e293b;margin:0;font-weight:800}.cheatsheet-empty p{font-size:.9rem;margin:0}.w-full{width:100%}.cheatsheet-empty{text-align:center;padding:40px 20px;color:#64748b;background:#fff;border-radius:12px;border:2px dashed #CBD5E1;margin:10px}.cheatsheet-empty h3{color:#334155;margin-bottom:8px}@media(max-width:768px){.cheatsheet-top-nav{margin-bottom:5px;padding-top:5px}.cheatsheet-header{margin-bottom:5px;padding-bottom:5px}.sheet-title-main{font-size:1.15rem!important;margin-bottom:5px}.cheatsheet-header.detail-header{flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap}.training-toggle label{padding:6px 10px;font-size:.75rem}.sheet-content-scroll{padding-top:5px;padding-bottom:80px;gap:12px}.sheet-item{padding:12px 15px}.cheatsheet-bottom-actions{flex-direction:row;gap:8px;padding:10px;background:#eef2ffe6;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);position:absolute;bottom:0;left:0;right:0;z-index:10;border-top:1px solid rgba(0,0,0,.05)}.cheatsheet-bottom-actions .btn-primary,.cheatsheet-bottom-actions .btn-secondary{flex:1;padding:10px 5px;font-size:.85rem;margin-top:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.imagen-test-zone{padding:15px;background-color:#f0f4f8;border-radius:8px;margin-bottom:15px;text-align:center}.imagen-test-title{margin:0 0 10px;font-size:14px;font-weight:700;color:#1e293b}.imagen-test-result-container{width:50%;height:50%;margin-top:15px}.imagen-test-img{width:100%;border-radius:8px;box-shadow:0 4px 6px #0000001a;object-fit:cover}.imagen-test-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:15px;width:100%;max-width:450px;margin-left:auto;margin-right:auto}.imagen-test-grid-img{width:100%;height:auto;aspect-ratio:1 / 1;object-fit:cover;border-radius:8px;box-shadow:0 4px 6px #0000001a;transition:transform .2s}.imagen-test-grid-img:hover{transform:scale(1.05)}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#1e293bb3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px;animation:modalFadeIn .3s ease}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background-color:var(--primary-light, #EEF2FF);border-radius:24px;box-shadow:0 20px 50px -10px #0000004d;width:100%;max-width:700px;height:90vh;max-height:800px;display:flex;flex-direction:column;overflow:hidden;transform:scale(.95);animation:modalZoomIn .3s ease forwards}@keyframes modalZoomIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.modal-header{padding:10px 20px;display:flex;justify-content:flex-end;flex-shrink:0}.modal-close-btn{background:#e2e8f0;color:#64748b;border:none;width:32px;height:32px;border-radius:50%;font-weight:700;cursor:pointer;transition:all .2s}.modal-close-btn:hover{background:#ef4444;color:#fff;transform:rotate(90deg)}.modal-body{flex:1;overflow-y:hidden;display:flex;flex-direction:column}.modal-body .sheet-content-scroll{padding:0 10px 20px}.modal-body .cheatsheet-header{padding:0 10px 15px}.hub-main-content{display:flex;flex-direction:column;align-items:center;padding:clamp(20px,5vw,60px) 20px;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.hub-main-content .hub-header-text{text-align:center;margin-bottom:clamp(30px,5vw,50px)}.hub-main-content .hub-header-text h1{font-size:clamp(1.8rem,4vw,2.5rem);color:var(--text-main);margin-bottom:10px}.hub-main-content .hub-header-text p{font-size:clamp(1rem,2vw,1.1rem);color:var(--text-muted);margin:0}.hub-main-content .hub-tabs{display:flex;gap:15px;margin-bottom:30px;justify-content:center;flex-wrap:wrap}.hub-main-content .hub-tabs .hub-tab-btn{padding:10px 24px;border-radius:var(--radius-xl);border:2px solid transparent;background:var(--surface);font-weight:700;color:var(--text-muted);cursor:pointer;transition:all .2s ease-in-out;box-shadow:var(--shadow-sm)}.hub-main-content .hub-tabs .hub-tab-btn:hover{box-shadow:var(--shadow-md);color:var(--primary)}.hub-main-content .hub-tabs .hub-tab-btn:focus-visible{outline:2px solid var(--primary);outline-offset:4px}.hub-main-content .hub-tabs .hub-tab-btn.active{background:var(--primary);color:var(--surface);box-shadow:var(--shadow-primary-md)}.hub-main-content .subjects-full-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,180px),1fr));gap:clamp(15px,3vw,30px);width:100%}.hub-main-content .subjects-full-grid .subject-card-large{background:var(--surface);border:2px solid transparent;border-radius:var(--radius-xl);padding:clamp(25px,4vw,40px) 15px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.34,1.56,.64,1);outline:none}.hub-main-content .subjects-full-grid .subject-card-large .subject-icon-large{font-size:clamp(3rem,5vw,4rem);margin-bottom:20px;filter:drop-shadow(0 4px 6px rgba(0,0,0,.1))}.hub-main-content .subjects-full-grid .subject-card-large .subject-label-large{font-weight:800;font-size:1.2rem;color:var(--text-main);text-align:center}.hub-main-content .subjects-full-grid .subject-card-large:hover,.hub-main-content .subjects-full-grid .subject-card-large:focus-visible{transform:translateY(-8px) scale(1.02);box-shadow:var(--shadow-primary-lg);border-color:var(--primary)}.hub-main-content .favorites-container{width:100%;max-width:900px;animation:fadeIn .3s ease}.hub-main-content .favorites-container .fav-filter-bar{display:flex;gap:12px;padding-bottom:20px;overflow-x:auto;justify-content:center;flex-wrap:wrap;scrollbar-width:none}.hub-main-content .favorites-container .fav-filter-bar::-webkit-scrollbar{display:none}.hub-main-content .favorites-container .fav-filter-bar .fav-filter-btn{width:50px;height:50px;flex-shrink:0;border-radius:var(--radius-md);border:2px solid transparent;background:var(--surface);font-size:1.5rem;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;margin:2px;box-shadow:var(--shadow-xs)}.hub-main-content .favorites-container .fav-filter-bar .fav-filter-btn:hover{transform:translateY(-2px);border-color:var(--border)}.hub-main-content .favorites-container .fav-filter-bar .fav-filter-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.hub-main-content .favorites-container .fav-filter-bar .fav-filter-btn.active{border-color:var(--primary);background:var(--primary-light);transform:translateY(-2px)}.hub-main-content .favorites-container .favorites-status-msg{text-align:center;color:var(--text-muted);font-weight:600;padding:20px}.hub-main-content .favorites-container .favorites-empty-state{text-align:center;padding:40px 20px;background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm)}.hub-main-content .favorites-container .favorites-empty-state .empty-icon{font-size:3rem;display:block;margin-bottom:10px}.hub-main-content .favorites-container .favorites-empty-state p{color:var(--text-muted);font-weight:700;margin:0}.hub-main-content .favorites-container .favorites-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:20px}.hub-main-content .favorites-container .favorites-grid .fav-card{background:var(--surface);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;border:1px solid var(--border);display:flex;flex-direction:column;gap:8px;text-align:left;outline:none;width:100%}.hub-main-content .favorites-container .favorites-grid .fav-card h3{margin:0;color:var(--primary);font-size:1.1rem;line-height:1.4}.hub-main-content .favorites-container .favorites-grid .fav-card .fav-card-subtitle{margin:0;color:var(--text-muted);font-size:.9rem}.hub-main-content .favorites-container .favorites-grid .fav-card .fav-card-date{font-size:.8rem;color:var(--text-muted);font-weight:600;opacity:.8}.hub-main-content .favorites-container .favorites-grid .fav-card:hover,.hub-main-content .favorites-container .favorites-grid .fav-card:focus-visible{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary)}.custom-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:700;font-family:inherit;border:none;border-radius:var(--radius-lg, 12px);cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);background:linear-gradient(135deg,var(--primary, #6366F1) 0%,var(--primary-hover, #4F46E5) 100%);color:var(--surface, white);box-shadow:var(--shadow-primary-md);outline:none;text-decoration:none}.custom-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-primary-lg)}.custom-button:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-primary-sm)}.custom-button.active{background:red;color:var(--surface, white);border-color:var(--primary, #6366F1)}.custom-button:disabled{background:var(--btn-disabled-bg);color:var(--btn-disabled-text);cursor:not-allowed;box-shadow:none;transform:none}.custom-button.variant-pill{font-size:.85rem;padding:8px 16px;border-radius:20px}.custom-button.variant-pill:hover:not(:disabled){background:var(--surface, white);color:var(--primary, #6366F1);transform:translateY(-1px);box-shadow:var(--shadow-primary-md)}.custom-button.variant-primary{background:var(--surface, white);color:var(--primary, #6366F1);border:2px solid var(--primary-light, #EEF2FF);font-size:.95rem;padding:10px 20px;border-radius:25px;box-shadow:none}.custom-button.variant-primary:hover:not(:disabled){background:var(--primary, #6366F1);color:var(--surface, white);border-color:var(--primary, #6366F1)}.custom-button.variant-primary-white{font-size:.85rem;padding:6px 14px;background:var(--surface, white);color:var(--text-muted, #64748B);border:1px solid var(--border, #E2E8F0);box-shadow:none}.custom-button.variant-toggle:hover:not(:disabled){background:var(--bg-color, #F8FAFC);color:var(--primary, #6366F1);transform:translateY(-1px);box-shadow:var(--shadow-xs)}.custom-button.variant-minigame{font-size:.9rem;padding:8px 16px;border-radius:12px;background:linear-gradient(135deg,var(--accent-light) 0%,var(--accent-main) 100%);box-shadow:var(--shadow-accent-md)}.custom-button.variant-minigame:hover:not(:disabled){background:linear-gradient(135deg,var(--accent-main) 0%,var(--accent-dark) 100%);box-shadow:var(--shadow-accent-lg)}.custom-button.active,.custom-button[class*=variant-].active,.custom-button[class*=variant-].active:hover:not(:disabled){background:var(--primary, #6366F1);color:var(--surface, white);border-color:var(--primary, #6366F1);box-shadow:var(--shadow-primary-lg)}.history-main-content{display:flex;flex-direction:column;padding:40px 20px;max-width:1000px;margin:0 auto}.history-navigation{margin-bottom:20px}button.custom-button.btn-back-hub{background:#fff;border:1px solid #E2E8F0;color:#64748b;padding:10px 20px;border-radius:12px;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 2px 4px #94a3b81a}button.custom-button.btn-back-hub:hover,button.custom-button.btn-back-hub:focus-visible{color:#6366f1;border-color:#6366f1;transform:translate(-3px);outline:none}.history-header-box{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:30px;border-radius:24px;box-shadow:0 4px 12px #94a3b80d;margin-bottom:20px;border:1px solid #F1F5F9;flex-wrap:wrap;gap:20px}.history-header-box h1{margin:0 0 5px;color:#1e293b;font-size:2rem}.history-header-box p{margin:0;color:#64748b}button.custom-button.btn-new-analysis{background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff;border:none;padding:15px 30px;border-radius:16px;font-weight:800;font-size:1.3rem;cursor:pointer;box-shadow:0 10px 25px -5px #6366f166;transition:all .3s;display:flex;align-items:center;gap:10px}button.custom-button.btn-new-analysis:hover,button.custom-button.btn-new-analysis:focus-visible{transform:translateY(-3px);box-shadow:0 15px 30px -5px #6366f180;outline:none}.history-tabs{display:flex;gap:20px;margin-bottom:30px;padding:0 10px}button.custom-button.history-tab-btn{background:transparent;border:none;border-radius:15px;color:#94a3b8;font-weight:800;font-size:.9rem;padding:10px 5px 12px;cursor:pointer;position:relative;transition:color .2s}button.custom-button.history-tab-btn:hover,button.custom-button.history-tab-btn:focus-visible{color:#475569;outline:none}.history-grid{display:flex;flex-direction:column;gap:15px}.history-card-full{display:flex;align-items:center;width:100%;padding:20px 25px;background:#fff;border:1px solid transparent;border-radius:16px;cursor:pointer;text-align:left;transition:all .2s;box-shadow:0 2px 8px #94a3b814}.history-card-full:hover,.history-card-full:focus-visible{border-color:#eef2ff;box-shadow:0 6px 15px #94a3b826;transform:translate(5px);outline:none}.hc-icon{font-size:1.8rem;background:#eef2ff;width:60px;height:60px;display:flex;align-items:center;justify-content:center;border-radius:14px;margin-right:20px}.hc-content{flex:1}.hc-content h3{margin:0 0 5px;color:#1e293b;font-size:1.1rem;font-weight:800}.hc-content span{color:#94a3b8;font-size:.9rem}.hc-arrow{font-size:1.5rem;color:#cbd5e1;font-weight:700}.history-loading,.history-empty{text-align:center;padding:60px;color:#64748b;background:#fff;border-radius:24px;border:2px dashed #E2E8F0}@media(max-width:768px){.history-header-box{flex-direction:column;text-align:center;padding:20px}.btn-new-analysis{width:100%;justify-content:center}.history-card-full{padding:15px;width:auto}.hc-icon{width:50px;height:50px;font-size:1.4rem;margin-right:15px}}.action-sidebar{width:72px;background-color:#1e293b;display:flex;flex-direction:column;align-items:center;padding:20px 0;gap:15px;flex-shrink:0;z-index:20}.as-btn{width:48px;height:48px;border-radius:24px;background-color:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(.34,1.56,.64,1);color:#94a3b8;position:relative}.as-btn:hover{border-radius:16px;background-color:#334155;color:#fff}.as-btn.as-primary:hover{background-color:#6366f1}.as-btn.as-revision:hover{background-color:#ec4899}.as-icon{font-size:1.4rem}.as-divider{width:32px;height:2px;background-color:#334155;border-radius:1px;margin:5px 0}.as-btn.as-chat:hover,.as-btn.as-chat.active{background-color:#3b82f6;color:#fff}.as-btn.as-revision:hover,.as-btn.as-revision.active{background-color:#ec4899;color:#fff}@media(max-width:768px){.action-sidebar{position:fixed;bottom:0;left:0;width:100%;height:70px;flex-direction:row;justify-content:space-evenly;align-items:center;padding:0 10px;border-right:none;border-top:1px solid var(--border);background:var(--surface);z-index:1000;box-shadow:0 -4px 10px #0000000d}.as-btn{margin-bottom:0!important}.as-btn.as-chat,.as-btn.as-cheatsheet{display:none}.as-divider{width:2px!important;height:30px!important;margin:0!important}}.runner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#0f172acc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}.runner-container{position:relative;width:100%;max-width:800px;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 25px 50px -12px #00000080,0 0 0 1px #ffffff1a;display:flex;flex-direction:column}.runner-header{display:flex;justify-content:space-between;align-items:center;padding:15px 24px;background:#fff;border-bottom:2px solid #F1F5F9}.runner-score{font-weight:700;font-size:1.2rem;color:#64748b;text-transform:uppercase;letter-spacing:1px}.score-number{color:#4f46e5;font-size:1.4rem;font-weight:900}.runner-close-btn{background:#fef2f2;color:#ef4444;border:1px solid #FECACA;padding:8px 18px;border-radius:12px;font-weight:700;cursor:pointer;transition:all .2s ease}.runner-close-btn:hover{background:#ef4444;color:#fff;transform:translateY(-2px);box-shadow:0 4px 6px -1px #ef444433}.runner-notification{background:linear-gradient(to right,#d1fae5,#a7f3d0);color:#065f46;padding:12px 20px;text-align:center;font-weight:600;font-size:.95rem;border-bottom:1px solid #34D399;box-shadow:inset 0 -2px 4px #00000005}.runner-canvas{width:100%;height:auto;display:block;cursor:pointer}.runner-game-over{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fffffff2;padding:30px 50px;border-radius:16px;text-align:center;pointer-events:none;box-shadow:0 10px 25px -5px #0000001a,0 8px 10px -6px #0000001a;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:popIn .3s cubic-bezier(.175,.885,.32,1.275) forwards}@keyframes popIn{0%{opacity:0;transform:translate(-50%,-40%) scale(.8)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.runner-game-over h3{margin:0 0 12px;color:#0f172a;font-size:2.5rem;font-weight:900}.runner-game-over p{margin:0;color:#64748b;font-weight:500;font-size:1.1rem}.runner-game-over strong{color:#4f46e5;background:#eef2ff;padding:2px 8px;border-radius:6px}.runner-instructions{text-align:center;padding:16px;color:#64748b;background:#fff;border-top:2px solid #F1F5F9;font-size:.95rem;font-weight:500}.runner-instructions strong{color:#334155;background:#f1f5f9;padding:4px 8px;border-radius:6px;border:1px solid #E2E8F0}.pdf-page-selector{margin-top:15px;padding:15px;background:#f8fafc;border-radius:12px;border:1px solid #E2E8F0}.pdf-page-selector h4{margin:0 0 5px;font-size:.95rem;color:#1e293b}.pdf-page-selector p{margin:0 0 15px;font-size:.85rem;color:#64748b}.pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:10px;max-height:250px;overflow-y:auto;padding-right:5px}.pdf-page-thumb{position:relative;border-radius:8px;overflow:hidden;cursor:pointer;border:2px solid transparent;transition:all .2s ease;background:#fff;box-shadow:0 1px 3px #0000001a}.pdf-page-thumb img{width:100%;height:auto;display:block;opacity:.9}.pdf-page-thumb:hover:not(.disabled){transform:scale(1.05)}.pdf-page-thumb.selected{border-color:#4f46e5}.pdf-page-thumb.selected img{opacity:1}.pdf-page-thumb.disabled{cursor:not-allowed;opacity:.5;filter:grayscale(100%)}.page-badge{position:absolute;top:4px;left:4px;background:#0009;color:#fff;font-size:.7rem;padding:2px 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.2s;min-height:140px;display:flex;flex-direction:column;align-items:center;justify-content:center}.upload-zone:hover{border-color:var(--primary);background:#eef2ff;transform:scale(1.01)}.upload-preview{width:100%;max-height:160px;object-fit:contain;border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.upload-icon{font-size:2.5rem;margin-bottom:10px}.upload-text{font-size:1rem;margin:0;color:var(--text-muted);font-weight:700}.result-panel{flex:1;background:#fff;display:flex;flex-direction:column;position:relative;overflow:hidden;border-top-left-radius:30px;box-shadow:-5px 0 20px #00000008;margin-top:10px;margin-right:10px}.chat-area{flex:1;padding:40px;overflow-y:auto;display:flex;flex-direction:column;gap:25px}.empty-state{margin:auto;text-align:center;color:var(--text-muted);max-width:450px;background:#f8fafc;padding:40px;border-radius:var(--radius-xl)}.empty-state h2{color:var(--text-main);margin-bottom:15px;font-weight:900;font-size:1.8rem}.input-area{background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--border);padding:20px 40px;display:flex;flex-direction:column;gap:10px}.input-container{display:flex;gap:15px;align-items:flex-end;background:#f8fafc;border:2px solid transparent;border-radius:var(--radius-xl);padding:10px 15px;transition:all .2s}.input-container:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-light)}.chat-textarea{flex:1;border:none;background:transparent;resize:none;outline:none;font-family:inherit;font-size:1rem;padding:8px;color:var(--text-main);font-weight:500}.send-btn{width:48px;height:48px;border-radius:50%;border:none;background:var(--primary);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s cubic-bezier(.34,1.56,.64,1);box-shadow:var(--shadow-md)}.send-btn:hover{transform:scale(1.1);background:var(--primary-hover)}.message-row{display:flex;width:100%;margin-bottom:15px}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-content-wrapper{display:flex;flex-direction:column;gap:6px}.message-row.user .message-content-wrapper{align-items:flex-end;max-width:60%}.message-row.assistant .message-content-wrapper{align-items:flex-start;max-width:75%}.chat-option-btn{background-color:#fff;border:2px solid var(--primary-light);color:var(--primary);padding:12px 20px;border-radius:25px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:var(--shadow-sm)}.chat-option-btn:hover{background-color:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow-md)}.sidebar-nav-header{padding-bottom:25px;margin-bottom:20px;border-bottom:2px dashed var(--border);padding-left:10px;padding-right:10px}.nav-toggle-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:12px;background-color:#fff;color:var(--text-muted);border:2px solid var(--border);border-radius:var(--radius-lg);font-weight:700;cursor:pointer;transition:all .2s}.nav-toggle-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}.explorer-header-info{flex-shrink:0;padding:0 20px 15px;margin-bottom:5px;border-bottom:1px solid var(--border)}.explorer-list{list-style:none;margin:0;display:flex;flex-direction:column;gap:12px;flex:1;overflow-y:auto;padding:15px 20px 40px}.explorer-list::-webkit-scrollbar{width:6px}.explorer-list::-webkit-scrollbar-thumb{background-color:#cbd5e1;border-radius:10px}.item-icon{font-size:1.1rem;flex-shrink:0;opacity:.7}.item-label{line-height:1.4}.explorer-item-btn:not(.child-item){border-radius:16px;background:#fff;box-shadow:0 2px 5px #00000008;margin-bottom:8px;border:1px solid transparent}.explorer-item-btn:not(.child-item):hover{border-color:var(--primary-light);box-shadow:0 4px 12px #0000000f;transform:translateY(-2px);color:var(--primary)}@media(max-width:768px){.mobile-menu-btn{display:block}.workspace-header{padding:0 15px;justify-content:flex-start}.brand{margin-right:auto;font-size:1.2rem}.workspace-content.mobile-sidebar-active{display:flex;width:100%;border-right:none;height:100%}.workspace-content.mobile-sidebar-active .result-panel,.workspace-content.mobile-chat-active{display:none}.workspace-content.mobile-chat-active .result-panel{display:flex;width:100%;margin:0;border-radius:0;height:100%}.subjects-grid-cards{grid-template-columns:repeat(2,1fr)}.chat-area{padding:20px}.input-area{padding:15px}.message-row.user .message-content-wrapper,.message-row.assistant .message-content-wrapper{max-width:85%}}.chat-page-layout{display:flex;height:calc(100vh - 70px);width:100%;overflow:hidden;background-color:var(--bg-color)}.chat-middle-sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:hidden;flex-shrink:0;transition:width .3s cubic-bezier(.4,0,.2,1)}.chat-middle-sidebar.panel-mode-explorer{width:340px}.chat-middle-sidebar.panel-mode-cheatsheet{width:50%;max-width:800px}.sidebar-section{padding:25px 20px;display:flex;flex-direction:column;gap:20px;height:100%;overflow-y:auto}.sidebar-section h2{font-size:1.2rem;color:var(--text-main);margin:0;font-weight:800}.chat-main-area{flex:1;display:flex;flex-direction:column;background:#fdfbff;position:relative;overflow:hidden;transition:width .3s ease}.chat-feed-container{flex:1;overflow-y:auto;padding:40px;display:flex;flex-direction:column;gap:25px}.chat-input-wrapper{padding:0;background:transparent}.message-actions-bar{display:flex;align-items:center;gap:10px;margin-top:20px;padding-top:15px}.scroll-bottom-fab{position:absolute;bottom:90px;right:50%;width:48px;height:48px;border-radius:50%;background:#ffffffd9;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--primary);border:1px solid rgba(0,0,0,.05);box-shadow:0 4px 15px #0000001a;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:50;transition:all .3s cubic-bezier(.4,0,.2,1);opacity:0;animation:scaleInFab .3s forwards}@keyframes scaleInFab{0%{transform:scale(.8) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.scroll-bottom-fab:hover{background:var(--surface);transform:translateY(-3px);box-shadow:0 6px 20px #00000026;color:var(--primary-hover)}.unread-dot{position:absolute;top:10px;right:12px;width:10px;height:10px;background:#ef4444;border-radius:50%;border:2px solid var(--surface);box-shadow:0 0 0 1px #ffffff80}.reformulation-container{margin-top:15px;width:100%}.reformulation-toggle{background:none;border:none;color:var(--primary);font-weight:700;cursor:pointer;padding:5px 0;font-size:.85rem;margin-bottom:5px;display:flex;align-items:center;gap:5px;transition:color .2s}.reformulation-toggle:hover{color:var(--primary-hover)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.chat-page-layout.mobile-sidebar-open .chat-main-area{display:none!important}.chat-page-layout.mobile-sidebar-open .chat-middle-sidebar{width:100%!important;border-right:none;display:flex!important;padding-bottom:80px}.chat-page-layout.mobile-chat-open .chat-middle-sidebar{display:none!important}.chat-page-layout.mobile-chat-open .chat-main-area{width:100%!important;display:flex!important}.chat-page-layout.mobile-chat-open .action-sidebar{display:none!important}.chat-feed-container{padding:20px 15px}}.waiting-bubble{display:flex;flex-direction:column;gap:15px;min-width:250px}.waiting-status{padding-bottom:10px}.minigame-prompt{border-top:1px solid #E2E8F0;padding-top:12px;display:flex;flex-direction:column;gap:10px}.minigame-text{margin:0;font-size:.9rem;color:#64748b;font-weight:600}.minigame-icons{display:flex;gap:10px;flex-wrap:wrap}.minigame-btn{background:#eef2ff;border:1px solid #C7D2FE;color:#4f46e5;padding:8px 16px;border-radius:12px;font-size:.95rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s ease}.minigame-btn:hover{background:#e0e7ff;transform:translateY(-2px);box-shadow:0 4px 6px #4f46e526}.markdown-content{white-space:pre-wrap;word-break:break-word}.markdown-content p{margin-bottom:10px}.markdown-content p:last-child{margin-bottom:0}.revision-hub-container{width:100%;max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:30px;padding-bottom:40px;animation:fadeIn .4s ease-out;box-sizing:border-box}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-border{0%{box-shadow:0 0 #6366f166}70%{box-shadow:0 0 0 10px #6366f100}to{box-shadow:0 0 #6366f100}}.hub-header{text-align:center;margin-bottom:10px}.hub-header h2{font-size:2.2rem;color:#1e293b;margin:0 0 10px;font-weight:800}.hub-header p{color:#64748b;font-size:1.1rem;margin:0}.hub-tabs{display:flex;gap:15px;margin-bottom:30px;justify-content:center}.hub-tab-btn{box-sizing:border-box;padding:10px 24px;border-radius:20px;border:none;background:#fff;font-weight:700;color:#64748b;cursor:pointer;transition:all .2s;box-shadow:0 2px 5px #0000000d}.hub-tab-btn.active{background:#6366f1;color:#fff;box-shadow:0 4px 10px #6366f14d}.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}.game-card{background:#fff;border:2px solid transparent;border-radius:20px;padding:25px 20px;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;box-shadow:0 4px 15px #94a3b814;transition:all .3s cubic-bezier(.34,1.56,.64,1);position:relative;overflow:hidden;outline:none;box-sizing:border-box}.game-card:not(.disabled):hover,.game-card:not(.disabled):focus-visible{transform:translateY(-5px) scale(1.02);box-shadow:0 15px 30px -5px #6366f133;border-color:#6366f1}.game-card.generating{border-color:#6366f1;animation:pulse-border 2s infinite;background:#eef2ff;transform:scale(1.02);opacity:1}.game-icon{font-size:3.5rem;margin-bottom:15px;filter:drop-shadow(0 4px 6px rgba(0,0,0,.1));transition:transform .3s ease}.game-card:not(.disabled):hover .game-icon{transform:scale(1.1) rotate(5deg)}.game-icon.generating{animation:spin 2s linear infinite;display:inline-block}.game-label{font-size:1.2rem;font-weight:800;color:#1e293b;margin:0 0 5px}.game-desc{font-size:.9rem;color:#64748b;margin:0}.game-desc.generating{color:#6366f1;font-weight:700;font-size:.85rem}.game-card.disabled{cursor:not-allowed;background:#f8fafc;opacity:.7;box-shadow:none}.game-card.disabled .game-icon{filter:grayscale(100%) opacity(.5)}.game-badge{position:absolute;top:15px;right:-25px;background:#f59e0b;color:#fff;font-size:.7rem;font-weight:700;padding:3px 30px;transform:rotate(45deg);text-transform:uppercase;letter-spacing:1px}.game-badge.generating{background-color:#6366f1}.difficulty-selector{display:flex;flex-direction:column;gap:8px;width:100%;margin-top:15px;animation:fadeIn .2s ease-out}.btn-difficulty{background:var(--primary-light, #EEF2FF);color:var(--primary, #6366F1);border:1px solid var(--primary, #6366F1);padding:8px 15px;border-radius:12px;font-weight:700;font-size:.9rem;cursor:pointer;transition:all .2s cubic-bezier(.34,1.56,.64,1)}.btn-difficulty:hover,.btn-difficulty:focus-visible{background:var(--primary, #6366F1);color:#fff;transform:translateY(-2px);box-shadow:0 4px 10px #6366f133}.btn-difficulty-cancel{background:transparent;color:var(--text-muted, #64748B);border:none;padding:6px 15px;border-radius:12px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;margin-top:4px}.btn-difficulty-cancel:hover,.btn-difficulty-cancel:focus-visible{background:var(--bg-color, #F8FAFC);color:#ef4444}.history-view{display:flex;flex-direction:column;gap:20px}.stats-overview{display:flex;gap:20px}.stat-card{flex:1;background:#fff;border-radius:16px;padding:20px;display:flex;align-items:center;gap:20px;box-shadow:0 2px 8px #94a3b80d;box-sizing:border-box}.stat-icon{font-size:2.5rem;background:#eef2ff;width:70px;height:70px;display:flex;align-items:center;justify-content:center;border-radius:16px}.stat-info{display:flex;flex-direction:column}.stat-value{font-size:1.8rem;font-weight:900;color:#1e293b;line-height:1;margin-bottom:5px}.stat-label{font-size:.95rem;color:#64748b;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.recent-activity-section{background:#fff;border-radius:20px;padding:25px;box-shadow:0 2px 8px #94a3b80d;box-sizing:border-box}.recent-activity-section h4{margin:0 0 20px;font-size:1.2rem;color:#1e293b}.history-rows{display:flex;flex-direction:column;gap:12px}.history-row{display:flex;align-items:center;justify-content:space-between;padding:15px;background:#f8fafc;border-radius:12px;transition:background .2s;box-sizing:border-box}.history-row:hover{background:#f1f5f9}.history-icon-wrapper{background:#fff;width:45px;height:45px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;box-shadow:0 2px 4px #0000000d}.history-title{font-weight:800;color:#1e293b;font-size:1rem}.history-date{font-size:.85rem;color:#94a3b8}.history-score{font-weight:900;font-size:1.1rem;padding:6px 15px;border-radius:20px}.history-score.good{color:#10b981;background:#d1fae5}.history-score.average{color:#f59e0b;background:#fef3c7}.history-score.bad{color:#ef4444;background:#fee2e2}.empty-history,.loading-state{text-align:center;padding:40px;color:#64748b;background:#f8fafc;border-radius:12px;border:2px dashed #E2E8F0;display:flex;flex-direction:column;align-items:center;gap:10px}@media(max-width:768px){.hub-header h2{font-size:1.8rem}.hub-header p{font-size:.95rem}.hub-tabs{flex-wrap:wrap;gap:10px}.hub-tab-btn{flex:1;padding:10px;font-size:.9rem;text-align:center;white-space:nowrap;min-width:140px}.stats-overview{flex-direction:column;gap:15px}.games-grid{grid-template-columns:1fr;gap:15px}.game-card{padding:20px 15px;min-height:auto}.game-icon{font-size:2.5rem;margin-bottom:10px}.game-label{font-size:1.1rem}.history-row{flex-direction:column;align-items:flex-start;gap:12px}.history-row-left{width:100%}.history-score{margin-left:60px;align-self:flex-start}}.game-header-container{width:100%;margin-bottom:30px}.game-header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.game-counter{font-weight:800;color:var(--text-muted, #64748B);font-size:1.1rem}.correction-badge{background:var(--primary-light, #EEF2FF);color:var(--primary-hover, #4F46E5);font-weight:900;font-size:.8rem;padding:6px 12px;border-radius:12px;letter-spacing:.5px}.quit-btn-small{background:transparent;border:none;color:var(--text-muted, #94A3B8);font-weight:700;font-size:.95rem;cursor:pointer;display:flex;align-items:center;padding:6px 12px;border-radius:8px;transition:all .2s ease}.game-progress-bar{width:100%;height:12px;background:#f1f5f9;border-radius:6px;overflow:hidden}.game-progress-fill{height:100%;background:linear-gradient(90deg,var(--primary, #6366F1),#A855F7);transition:width .4s ease-out;border-radius:6px}.revision-hub-container,.quiz-container{padding:40px;display:flex;flex-direction:column;background-color:#fdfbff;font-family:Nunito,sans-serif}.hub-header{display:flex;align-items:center;gap:20px;margin-bottom:40px}.hub-header h3{margin:0;color:#4f46e5;font-size:2rem;font-weight:900}.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:25px}.game-card{background:#fff;border:none;border-radius:24px;padding:25px;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;transition:all .2s cubic-bezier(.34,1.56,.64,1);position:relative;min-height:200px;box-shadow:0 10px 20px #0000000d,0 6px 6px #0000000d;border-bottom:6px solid #E2E8F0}.game-card:hover{transform:translateY(-8px);border-bottom-width:10px;border-bottom-color:#6366f1}.game-card:active{transform:translateY(4px);border-bottom-width:2px}.game-card.disabled{opacity:.6;cursor:not-allowed;background:#f1f5f9;border-bottom-color:#cbd5e1;transform:none}.game-icon-circle{font-size:3rem;background:#eef2ff;width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:15px;box-shadow:inset 0 0 20px #6366f11a}.game-title{font-weight:800;color:#1e293b;margin-bottom:8px;font-size:1.1rem;display:block}.game-desc{font-size:.9rem;color:#64748b;line-height:1.4}.play-badge{margin-top:auto;font-size:.8rem;font-weight:900;color:#fff;background:#6366f1;padding:6px 16px;border-radius:20px;letter-spacing:.05em;box-shadow:0 4px 10px #6366f14d}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:#64748b;gap:20px;font-weight:700;font-size:1.1rem}.spinner{width:50px;height:50px;border:6px solid #E2E8F0;border-top-color:#6366f1;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.question-card{background:#fff;padding:40px;border-radius:30px;box-shadow:0 20px 40px -10px #0000001a;max-width:700px;margin:0 auto;width:100%;border:1px solid #F1F5F9}.progress-bar{width:100%;height:12px;background:#f1f5f9;border-radius:6px;overflow:hidden;margin-bottom:30px}.progress-fill{height:100%;background:linear-gradient(90deg,#6366f1,#a855f7);transition:width .4s ease-out;border-radius:6px}.question-text{font-size:1.4rem;font-weight:800;margin-bottom:30px;color:#1e293b;line-height:1.4}.options-list{display:flex;flex-direction:column;gap:15px}.option-btn{padding:20px;border:2px solid #E2E8F0;border-radius:16px;background:#fff;text-align:left;cursor:pointer;font-size:1.05rem;font-weight:600;color:#475569;transition:all .2s;display:flex;justify-content:space-between;align-items:center}.option-btn:hover{border-color:#6366f1;background:#eef2ff;transform:scale(1.01);color:#6366f1}.option-btn.selected{border-color:#6366f1;background:#eef2ff;color:#6366f1;box-shadow:0 0 0 4px #6366f133}.option-btn.correct{border-color:#10b981;background:#ecfdf5;color:#065f46}.option-btn.wrong{border-color:#ef4444;background:#fef2f2;color:#991b1b}.explanation-box{margin-top:30px;padding:20px;background:#f0fdfa;border-radius:16px;font-size:1rem;color:#064e3b;border:2px solid #CCFBF1}.quiz-footer{margin-top:40px;display:flex;justify-content:flex-end}.next-btn{background:#6366f1;color:#fff;padding:14px 32px;border-radius:16px;border:none;font-weight:800;font-size:1rem;cursor:pointer;box-shadow:0 4px 15px #6366f166;transition:all .2s}.next-btn:active{transform:translateY(0)}.next-btn:disabled{background:#cbd5e1;cursor:not-allowed;box-shadow:none;transform:none}.results-view{text-align:center;max-width:600px;margin:auto}.results-view h2{font-size:2.5rem;font-weight:900;color:#6366f1;margin-bottom:10px}.results-view p{font-size:1.4rem;font-weight:800;color:#1e293b;margin-top:-5px;margin-bottom:30px}.score-circle{width:160px;height:160px;background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3.5rem;font-weight:900;margin:40px auto;box-shadow:0 20px 40px -10px #6366f180;border:8px solid #EEF2FF}.secondary-btn{background:#fff;color:#6366f1;border:2px solid #6366F1;padding:12px 24px;border-radius:16px;font-weight:800;font-size:1rem;cursor:pointer;transition:all .2s;box-shadow:0 2px 5px #0000000d}.secondary-btn:hover{background:#eef2ff;transform:translateY(-2px);box-shadow:0 4px 10px #6366f133}.secondary-btn:active{transform:translateY(0)}.secondary-btn:disabled{border-color:#e2e8f0;color:#cbd5e1;cursor:not-allowed;background:#fff;transform:none;box-shadow:none}.cta-select-game{background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff;padding:30px;border-radius:20px;display:flex;align-items:center;gap:20px;margin-bottom:40px;box-shadow:0 10px 25px -5px #6366f166;animation:slideIn .5s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.cta-icon{font-size:3rem;animation:pointLeft 1.5s infinite ease-in-out}@keyframes pointLeft{0%,to{transform:translate(0)}50%{transform:translate(-10px)}}.cta-text h4{margin:0 0 5px;font-size:1.5rem;font-weight:800}.cta-text 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#00000005;font-family:inherit;font-size:1rem;outline:none;box-sizing:border-box;word-wrap:break-word}.matching-node:hover{border-color:var(--primary-light, #EEF2FF);transform:translateY(-2px);box-shadow:0 4px 8px #0000000d}.matching-node.selected{border-color:var(--primary, #6366F1);box-shadow:0 0 0 4px #6366f126;background:var(--primary-light, #EEF2FF);color:var(--primary-hover, #4F46E5)}.node-badge{position:absolute;top:-10px;right:-10px;background:var(--text-muted, #64748B);color:#fff;border-radius:20px;padding:4px 10px;font-size:.8rem;font-weight:900;box-shadow:0 2px 4px #0000001a;transition:background .3s}.node-badge.complete{background:#10b981}.matching-footer{display:flex;justify-content:flex-end;margin-top:20px}.next-btn{background:var(--primary, #6366F1);color:#fff;padding:14px 32px;border-radius:16px;border:none;font-weight:800;font-size:1rem;cursor:pointer;box-shadow:0 4px 15px #6366f166;transition:all .2s}.next-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px 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solid #EF4444}.summary-item.missed{color:#92400e;border-left:4px solid #F59E0B}.mobile-step-controls{display:none;justify-content:center;margin-top:10px}.step-toggle-btn{background:#fff;color:var(--primary, #6366F1);border:2px solid var(--primary-light, #EEF2FF);padding:12px 24px;border-radius:12px;font-weight:800;cursor:pointer;transition:all .2s}.step-toggle-btn:hover{background:var(--primary-light, #EEF2FF);border-color:var(--primary, #6366F1)}@media(max-width:768px){.matching-container,.matching-board-wrapper,.matching-summary{padding:20px 15px}.matching-summary-grid{grid-template-columns:1fr}.matching-board{gap:15px}.matching-node{padding:12px 10px;font-size:.9rem}.mobile-hidden{display:none!important}.mobile-step-controls{display:flex}}.games-page-layout{display:flex;height:calc(100vh - 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#0000001a;background-color:#fff}.markdown-content th{background-color:#f8fafc;color:#1e293b;font-weight:700;text-align:left;padding:12px 15px;border-bottom:2px solid #E2E8F0}.markdown-content td{padding:10px 15px;border-bottom:1px solid #E2E8F0;color:#334155}.markdown-content tr:last-child td{border-bottom:none}.markdown-content tr:hover td{background-color:#f1f5f9}