:root{--bg-dark: #070a13;--bg-card: #0f1322;--neon-cyan: #00f5ff;--neon-magenta: #ff006e;--neon-yellow: #ffea00;--neon-green: #39ff14;--text-main: #e2e8f0;--text-muted: #64748b;--border-color: #1e293b}body{margin:0;background-color:var(--bg-dark);color:var(--text-main);font-family:Inter,system-ui,-apple-system,sans-serif;overflow-x:hidden}.app-container{display:flex;flex-direction:column;min-height:100vh;background-image:radial-gradient(circle at 10% 20%,rgba(0,245,255,.05) 0%,transparent 40%),radial-gradient(circle at 90% 80%,rgba(255,0,110,.05) 0%,transparent 40%)}.cyber-header{display:flex;justify-content:space-between;align-items:center;padding:15px 30px;background-color:#0f1322cc;border-bottom:2px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:100}.logo-section{display:flex;align-items:center;gap:10px}.logo-icon{color:var(--neon-cyan);filter:drop-shadow(0 0 8px var(--neon-cyan))}.animate-spin-slow{animation:spin 8s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.logo-text{font-family:JetBrains Mono,Fira Code,monospace;font-weight:800;font-size:1.2rem;letter-spacing:2px;background:linear-gradient(90deg,var(--neon-cyan),var(--neon-magenta));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.logo-tag{font-size:.7rem;background-color:#00f5ff1a;color:var(--neon-cyan);padding:2px 6px;border-radius:4px;border:1px solid rgba(0,245,255,.3)}.nav-buttons{display:flex;gap:15px}.nav-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-muted);padding:8px 16px;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:8px;font-family:JetBrains Mono,monospace;font-size:.85rem;transition:all .3s ease;position:relative}.nav-btn:hover{color:var(--text-main);border-color:var(--text-muted)}.nav-btn.active.cyan{border-color:var(--neon-cyan);color:var(--neon-cyan);box-shadow:0 0 10px #00f5ff33;background-color:#00f5ff0d}.nav-btn.active.magenta{border-color:var(--neon-magenta);color:var(--neon-magenta);box-shadow:0 0 10px #ff006e33;background-color:#ff006e0d}.nav-btn.active.yellow{border-color:var(--neon-yellow);color:var(--neon-yellow);box-shadow:0 0 10px #ffea0033;background-color:#ffea000d}.nav-btn.active.green{border-color:var(--neon-green);color:var(--neon-green);box-shadow:0 0 10px #39ff1433;background-color:#39ff140d}.badge{background-color:var(--neon-magenta);color:#fff;font-size:.7rem;padding:1px 6px;border-radius:10px;font-weight:700}.cyber-main{flex:1;padding:30px;max-width:1400px;margin:0 auto;width:100%;box-sizing:border-box}.panel{display:flex;flex-direction:column;gap:25px}.panel-header{border-left:4px solid var(--neon-cyan);padding-left:15px}.panel-header.flex-row{display:flex;justify-content:space-between;align-items:center}.panel-header h2{font-family:JetBrains Mono,monospace;font-size:1.5rem;margin:0;letter-spacing:1px;color:var(--text-main)}.panel-desc{color:var(--text-muted);margin:5px 0 0;font-size:.9rem}.filter-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;background-color:var(--bg-card);padding:15px;border-radius:6px;border:1px solid var(--border-color)}.search-box{display:flex;align-items:center;background-color:#0000004d;border:1px solid var(--border-color);border-radius:4px;padding:8px 12px;flex:1;max-width:400px}.search-icon{color:var(--text-muted);margin-right:10px}.search-box input{background:transparent;border:none;color:var(--text-main);outline:none;width:100%;font-size:.9rem}.category-filters{display:flex;gap:10px}.filter-tab{background-color:#0003;border:1px solid var(--border-color);color:var(--text-muted);padding:6px 14px;border-radius:4px;cursor:pointer;font-size:.85rem;transition:all .2s}.filter-tab:hover{border-color:var(--text-muted);color:var(--text-main)}.filter-tab.active{background-color:#00f5ff1a;border-color:var(--neon-cyan);color:var(--neon-cyan)}.formula-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.formula-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:6px;padding:20px;position:relative;overflow:hidden;transition:all .3s ease}.formula-card:hover{transform:translateY(-4px);border-color:#00f5ff80;box-shadow:0 8px 20px #00f5ff1a}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.cat-tag{font-size:.7rem;font-family:JetBrains Mono,monospace;padding:2px 8px;border-radius:4px;font-weight:700}.cat-tag.mechanics{background-color:#ff006e1a;color:var(--neon-magenta);border:1px solid rgba(255,0,110,.3)}.cat-tag.electromagnetism{background-color:#00f5ff1a;color:var(--neon-cyan);border:1px solid rgba(0,245,255,.3)}.cat-tag.quantum{background-color:#39ff141a;color:var(--neon-green);border:1px solid rgba(57,255,20,.3)}.formula-unit{font-size:.75rem;color:var(--text-muted);font-family:JetBrains Mono,monospace}.formula-title{font-size:1.1rem;margin:0 0 12px;color:var(--text-main)}.formula-display{background-color:#0006;padding:12px;border-radius:4px;border-left:3px solid var(--neon-cyan);margin-bottom:15px;display:flex;justify-content:center}.formula-display code{font-family:JetBrains Mono,monospace;font-size:1.3rem;color:var(--neon-cyan);text-shadow:0 0 8px rgba(0,245,255,.5)}.formula-desc{font-size:.85rem;color:var(--text-muted);line-height:1.5;margin:0 0 15px}.formula-footer{border-top:1px solid rgba(255,255,255,.05);padding-top:12px}.factor-title{font-size:.75rem;color:var(--text-muted);font-weight:700}.factor-content{font-size:.8rem;color:var(--text-main);margin:4px 0 0;font-family:JetBrains Mono,monospace}.score-board{background-color:#ff006e1a;border:1px solid var(--neon-magenta);padding:8px 16px;border-radius:4px;display:flex;align-items:center;gap:10px}.score-label{font-size:.8rem;color:var(--text-muted)}.score-value{font-family:JetBrains Mono,monospace;font-size:1.2rem;font-weight:700;color:var(--neon-magenta);text-shadow:0 0 8px rgba(255,0,110,.5)}.quiz-container{max-width:800px;margin:0 auto;width:100%}.quiz-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:30px;box-shadow:0 10px 30px #0000004d}.quiz-meta{display:flex;justify-content:space-between;margin-bottom:20px;font-size:.8rem;font-family:JetBrains Mono,monospace}.quiz-category{color:var(--neon-magenta)}.quiz-progress{color:var(--text-muted)}.quiz-title{font-size:1.2rem;line-height:1.6;margin-bottom:25px}.options-list{display:flex;flex-direction:column;gap:12px;margin-bottom:25px}.option-btn{background-color:#ffffff05;border:1px solid var(--border-color);border-radius:6px;padding:15px 20px;display:flex;align-items:center;gap:15px;cursor:pointer;text-align:left;transition:all .2s ease;color:var(--text-main)}.option-btn:hover:not(:disabled){background-color:#ffffff0d;border-color:var(--text-muted)}.option-btn.active{border-color:var(--neon-cyan);background-color:#00f5ff0d}.option-btn.correct{border-color:var(--neon-green);background-color:#39ff1414;color:var(--neon-green)}.option-btn.wrong{border-color:var(--neon-magenta);background-color:#ff006e14;color:var(--neon-magenta)}.option-btn.disabled{opacity:.5;cursor:not-allowed}.option-index{font-family:JetBrains Mono,monospace;font-weight:700;background-color:#ffffff0d;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px;border:1px solid rgba(255,255,255,.1)}.option-btn.correct .option-index{background-color:#39ff1433;border-color:var(--neon-green)}.option-btn.wrong .option-index{background-color:#ff006e33;border-color:var(--neon-magenta)}.analysis-box{background-color:#0000004d;border:1px solid rgba(255,255,255,.05);border-radius:6px;padding:20px;margin-top:20px}.analysis-header{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem;margin-bottom:10px;color:var(--text-main)}.analysis-text{font-size:.9rem;color:var(--text-muted);line-height:1.6;margin:0 0 20px}.next-btn{background:linear-gradient(90deg,var(--neon-cyan),var(--neon-magenta));border:none;border-radius:4px;color:#fff;padding:12px 24px;font-family:JetBrains Mono,monospace;font-size:.9rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:8px;margin-left:auto;transition:opacity .2s}.next-btn:hover{opacity:.9}.errors-layout{display:grid;grid-template-columns:320px 1fr;gap:25px;min-height:500px}.errors-sidebar{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:6px;display:flex;flex-direction:column}.sidebar-title{font-size:.9rem;padding:15px;margin:0;border-bottom:1px solid var(--border-color);color:var(--text-muted);font-family:JetBrains Mono,monospace}.records-list{flex:1;overflow-y:auto;max-height:500px}.record-item{padding:15px;border-bottom:1px solid rgba(255,255,255,.02);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background-color .2s}.record-item:hover{background-color:#ffffff05}.record-item.active{background-color:#ffea000d;border-left:3px solid var(--neon-yellow)}.record-info{flex:1;padding-right:10px}.record-cat{font-size:.7rem;color:var(--neon-yellow);font-family:JetBrains Mono,monospace}.record-title-preview{font-size:.85rem;margin:5px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px}.delete-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:5px;border-radius:4px;transition:all .2s}.delete-btn:hover{color:var(--neon-magenta);background-color:#ff006e1a}.empty-sidebar{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:var(--text-muted);font-size:.85rem;gap:10px}.errors-detail{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:6px;padding:30px;display:flex;flex-direction:column;justify-content:center}.detail-card{width:100%}.detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.badge-warning{background-color:#ffea001a;color:var(--neon-yellow);border:1px solid rgba(255,234,0,.3);font-size:.75rem;padding:3px 8px;border-radius:4px;font-family:JetBrains Mono,monospace}.record-time{font-size:.75rem;color:var(--text-muted)}.detail-title{font-size:1.15rem;line-height:1.6;margin-bottom:25px}.wrong-history{margin-top:15px;padding-top:15px;border-top:1px solid rgba(255,255,255,.05);font-size:.85rem;color:var(--text-muted)}.font-mono{font-family:JetBrains Mono,monospace}.detail-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);gap:15px;height:300px}.placeholder-icon{opacity:.3}.ai-container{display:grid;grid-template-columns:1fr 1fr;gap:25px;min-height:400px}.ai-input-zone{display:flex;flex-direction:column;gap:15px}.ai-textarea{flex:1;background-color:#0000004d;border:1px solid var(--border-color);border-radius:6px;padding:20px;color:var(--text-main);font-size:.95rem;line-height:1.6;resize:none;outline:none;transition:border-color .2s}.ai-textarea:focus{border-color:var(--neon-green);box-shadow:0 0 10px #39ff141a}.ai-submit-btn{background-color:#39ff141a;border:1px solid var(--neon-green);color:var(--neon-green);padding:15px;border-radius:6px;font-family:JetBrains Mono,monospace;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all .2s}.ai-submit-btn:hover:not(:disabled){background-color:var(--neon-green);color:#000;box-shadow:0 0 15px #39ff1466}.ai-submit-btn:disabled{opacity:.5;cursor:not-allowed}.ai-output-zone{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:6px;display:flex;flex-direction:column;overflow:hidden}.output-header{background-color:#0003;padding:12px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:8px;font-family:JetBrains Mono,monospace;font-size:.85rem}.output-content{flex:1;padding:20px;display:flex;flex-direction:column;justify-content:center}.output-placeholder{color:var(--text-muted);font-family:JetBrains Mono,monospace;font-size:.85rem;text-align:center}.ai-text-display{font-size:.95rem;line-height:1.7;color:var(--text-main);white-space:pre-line}.loading-dots{display:flex;flex-direction:column;align-items:center;gap:10px}.loading-dots span{animation:blink 1.4s infinite both;color:var(--neon-green);font-size:1.5rem;margin:0 4px}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}.loading-text{font-size:.85rem;color:var(--text-muted);font-family:JetBrains Mono,monospace}@keyframes blink{0%{opacity:.2}20%{opacity:1}to{opacity:.2}}.empty-state{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px;color:var(--text-muted)}.empty-icon{opacity:.2;margin-bottom:15px}@media (max-width: 968px){.ai-container,.errors-layout{grid-template-columns:1fr}.cyber-header{flex-direction:column;gap:15px;padding:15px}.nav-buttons{flex-wrap:wrap;justify-content:center}}