:root{--bg-page: #Fdfaf6;--bg-card: #ffffff;--primary: #FFDE00;--primary-hover: #e0c300;--secondary: #FF6B6B;--text-title: #000000;--text-body: #000000;--text-muted: #000000;--success: #00FF00;--warning: #FFDE00;--error: #FF0000}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-page);color:var(--text-body)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.App{text-align:center}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion: no-preference){.App-logo{animation:App-logo-spin infinite 20s linear}}.App-header{background-color:#282c34;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:calc(10px + 2vmin);color:#fff}.App-link{color:#61dafb}@keyframes App-logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.cost-analysis-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn .3s ease-out}.cost-analysis-card{background:#fff;border:3px solid #000;border-radius:0;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:8px 8px #000;animation:slideUp .3s ease-out}.cost-analysis-header{padding:30px 30px 20px;border-bottom:3px solid #000}.cost-analysis-header h2{margin:0 0 10px;color:#000;font-size:1.8rem;font-weight:800;text-transform:uppercase}.model-info{margin:0;color:#718096;font-size:.95rem}.model-info strong{color:#000}.cost-analysis-body{padding:30px}.tokens-info{background:#fff;border:2px solid #000;border-radius:0;padding:20px;margin-bottom:25px}.token-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #e2e8f0}.token-item:last-child{border-bottom:none}.token-item.total{padding-top:15px;margin-top:5px;border-top:2px solid #cbd5e0;font-weight:600}.token-label{color:#4a5568;font-size:.95rem}.token-value{color:#2d3748;font-weight:600;font-size:1.1rem}.operations-cost{margin-bottom:25px}.operations-cost h3{margin:0 0 15px;color:#000;font-weight:800;font-size:1.2rem;text-transform:uppercase}.operation-item{display:flex;justify-content:space-between;align-items:center;padding:15px;background:#fdfaf6;border:2px solid #000;border-radius:0;margin-bottom:10px;transition:all .2s ease}.operation-item:hover{background:#ffde00;transform:translate(4px) translateY(-2px);box-shadow:4px 4px #000}.operation-item.required{background:#ffde00;border:3px solid #000;font-weight:700}.operation-name{display:flex;align-items:center;gap:10px;font-weight:700;color:#000}.operation-icon{font-size:1.3rem}.required-badge{background:#000;color:#ffde00;padding:2px 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#000;animation:fadeIn .3s ease}.study-plan-config h4{margin:0 0 18px;color:#000;font-size:1.05rem;font-weight:800;text-transform:uppercase;display:flex;align-items:center;gap:10px;padding-bottom:12px;border-bottom:3px solid #000}.study-plan-config .config-row{margin-bottom:16px}.study-plan-config .config-input{border-color:#000;background:#fff;font-size:.9rem}.study-plan-config .config-input:focus{border-color:#000;box-shadow:4px 4px #000}.study-plan-config .config-group label{color:#000;font-weight:800;font-size:.9rem}@media (max-width: 768px){.cost-analysis-card{margin:10px}.cost-analysis-header,.cost-analysis-body,.cost-analysis-actions{padding:20px}.total-cost{flex-direction:column;gap:10px;text-align:center}.operation-name{font-size:.9rem}.operation-cost{font-size:1rem}.config-row{flex-direction:column;gap:10px}.study-plan-config{margin-left:-20px;margin-right:-20px;margin-bottom:-20px;padding:18px 20px}.study-plan-config h4{font-size:1rem}}.purchase-cta-enhanced{background:#ff6b6b;border:3px solid #000;border-radius:0;padding:16px;margin:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:6px 6px #000}.cta-header{display:flex;align-items:flex-start;gap:12px;flex:1}.cta-icon{font-size:1.5rem;line-height:1;flex-shrink:0}.cta-message-container{display:flex;flex-direction:column;gap:4px}.cta-title{font-weight:800;color:#000;font-size:.95rem;text-transform:uppercase}.cta-subtitle{font-size:.85rem;color:#000;font-weight:700}.btn-buy-pack-enhanced{display:flex;align-items:center;gap:8px;background:#ffde00;color:#000;border:3px solid #000;padding:10px 18px;border-radius:0;font-weight:800;text-transform:uppercase;cursor:pointer;transition:all .2s ease;white-space:nowrap;box-shadow:4px 4px #000;flex-shrink:0}.btn-buy-pack-enhanced:hover{transform:translate(2px,2px);box-shadow:2px 2px #000;background:#e0c300}.btn-buy-pack-enhanced:active{transform:translateY(0)}.btn-icon{font-size:1.1rem}.btn-text{font-size:.9rem}.btn-arrow{font-size:1.2rem}.plans-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.plans-modal-content{background:#fff;border-radius:16px;max-width:900px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:0 25px 50px #0000004d;animation:slideUp .3s ease-out}.plans-modal-header{display:flex;justify-content:space-between;align-items:center;padding:25px 30px;border-bottom:2px solid #e5e7eb;background:linear-gradient(135deg,#6366f10d,#764ba20d);position:sticky;top:0;z-index:10}.plans-modal-header h2{margin:0;font-size:1.5rem;font-weight:700;color:#1f2937}.plans-modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#6b7280;padding:8px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .2s ease}.plans-modal-close:hover{background:#f3f4f6;color:#1f2937}.plans-modal-body{padding:30px;display:flex;flex-direction:column;gap:40px}.plans-section,.packs-section{display:flex;flex-direction:column;gap:16px}.plans-section h3,.packs-section h3{margin:0;font-size:1.3rem;font-weight:700;color:#1f2937}.section-subtitle{margin:0;font-size:.95rem;color:#6b7280;font-weight:500}.plans-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.plan-card{background:#fff;border:2px solid #e5e7eb;border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:12px;position:relative;transition:all .3s ease}.plan-card:hover{border-color:#6366f1;box-shadow:0 8px 20px #6366f126;transform:translateY(-4px)}.plan-card.plan-recommended{border-color:#6366f1;background:linear-gradient(135deg,#6366f10d,#764ba20d);box-shadow:0 8px 20px #6366f126}.plan-badge{position:absolute;top:-12px;right:20px;background:linear-gradient(135deg,#6366f1,#764ba2);color:#fff;padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:700;white-space:nowrap}.plan-card h4{margin:0;font-size:1.1rem;font-weight:700;color:#1f2937}.plan-price{font-size:1.3rem;font-weight:700;color:#6366f1}.plan-coins{font-size:.95rem;color:#ff9800;font-weight:600;background:#ff980014;padding:8px 12px;border-radius:6px;border-left:3px solid #ff9800}.plan-features{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:#4b5563;flex:1}.plan-features li{display:flex;align-items:flex-start;gap:6px}.plan-btn{padding:10px 16px;border:none;border-radius:8px;font-weight:700;cursor:pointer;transition:all .3s 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h4{margin:0;font-size:1rem;font-weight:700;color:#1f2937}.pack-coins{font-size:1.4rem;font-weight:800;color:#6366f1}.pack-unit{font-size:.85rem;color:#6b7280;font-weight:600}.pack-price{font-size:1.1rem;font-weight:700;color:#059669;margin-top:8px}.pack-btn{padding:8px 14px;border:none;border-radius:6px;font-weight:700;cursor:pointer;transition:all .3s ease;font-size:.9rem;width:100%;margin-top:4px}.pack-btn-buy{background:linear-gradient(135deg,#ff9800,#f57c00);color:#fff;box-shadow:0 4px 12px #ff98004d}.pack-btn-buy:hover{transform:translateY(-2px);box-shadow:0 6px 16px #ff980066}.plans-divider{display:flex;align-items:center;justify-content:center;gap:16px;margin:20px 0}.plans-divider span{font-weight:700;color:#d1d5db;font-size:.95rem}.plans-divider:before,.plans-divider:after{content:"";flex:1;height:2px;background:linear-gradient(90deg,transparent,#d1d5db,transparent)}.plans-info-note{background:#3b82f614;border:1px solid #dbeafe;border-left:4px solid #3b82f6;padding:12px 16px;border-radius:6px;font-size:.9rem;color:#1e40af;margin-top:10px}@media (max-width: 768px){.plans-modal-content{max-height:90vh}.plans-modal-header{padding:20px}.plans-modal-body{padding:20px;gap:30px}.plans-grid,.packs-grid{grid-template-columns:1fr}.plans-modal-header h2{font-size:1.25rem}}.google-signin-btn{display:flex;align-items:center;justify-content:center;background-color:#fff;color:#757575;border:1px solid #dcdcdc;padding:10px 15px;border-radius:5px;cursor:pointer;font-size:16px;font-family:Roboto,sans-serif;transition:background-color .3s ease;box-shadow:0 2px 4px #0003}.google-signin-btn img{width:20px;height:20px;margin-right:10px}.google-signin-btn:hover{background-color:#f7f7f7}