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li{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--text-secondary)}.bullet{width:5px;height:5px;border-radius:50%;background:var(--border-hover);flex-shrink:0}.btn-green-outline{background:transparent;border:1px solid var(--accent-secondary);color:var(--accent-secondary)}.btn-blue-outline{background:transparent;border:1px solid var(--accent-primary);color:var(--accent-primary)}.btn-purple-outline{background:transparent;border:1px solid var(--accent-purple);color:var(--accent-purple)}.age-cta{margin-top:auto;align-self:flex-start}.highlights-section{background:var(--bg-surface)}.highlights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.highlight-card{padding:24px;display:flex;flex-direction:column;gap:10px}.highlight-icon{width:44px;height:44px;border-radius:var(--radius-md);background:#4f8ef71f;color:var(--accent-primary);display:grid;place-items:center}.highlight-title{font-size:.95rem;font-weight:600;color:var(--text-primary)}.highlight-desc{font-size:.82rem;color:var(--text-secondary);line-height:1.6}.cta-banner{padding:72px 48px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;background:linear-gradient(135deg,#0d1117,#1a2540,#0d1117);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.cta-banner h2{font-size:2rem;font-weight:700;color:var(--text-primary);max-width:540px}.cta-banner p{color:var(--text-secondary);font-size:.95rem}.landing-footer{padding:24px 48px;display:flex;flex-direction:column;align-items:center;gap:12px;border-top:1px solid var(--border)}.footer-brand{display:flex;align-items:center;gap:8px;font-size:1rem;font-weight:700;color:var(--text-primary)}.landing-footer p{font-size:.78rem;color:var(--text-muted)}.skill-tower{display:flex;flex-direction:column;align-items:center;gap:0;width:100%}.tower-blocks{display:flex;flex-direction:column;gap:4px;width:100%}.tower-block{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:var(--radius-md);font-size:.8rem;font-weight:600;border:1px solid var(--border);background:var(--bg-elevated);position:relative;transition:transform .2s,box-shadow .2s;animation:slideIn .4s ease 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var(--border);border-radius:var(--radius-md);text-align:center;font-size:.78rem;color:var(--text-secondary);font-weight:600;margin-top:6px}.dashboard{display:flex;flex-direction:column;gap:24px;animation:fadeIn .4s ease}.welcome-banner{display:flex;align-items:center;justify-content:space-between;padding:24px 28px;background:linear-gradient(135deg,var(--bg-elevated) 0%,#1a2540 100%);border:1px solid var(--border);border-radius:var(--radius-lg);gap:16px}.welcome-text h1{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.welcome-text h1 span{color:var(--accent-primary)}.welcome-text p{color:var(--text-secondary);font-size:.88rem;margin-top:4px}.welcome-text p strong{color:#fb923c}.streak-badge{display:flex;align-items:center;gap:10px;padding:14px 20px;background:#fb923c1f;border:1px solid rgba(251,146,60,.3);border-radius:var(--radius-lg);color:#fb923c;flex-shrink:0}.streak-num{display:block;font-size:1.6rem;font-weight:800;line-height:1}.streak-label{font-size:.72rem;font-weight:500;color:var(--text-secondary)}.dash-grid{display:grid;grid-template-columns:280px 1fr;gap:20px;align-items:start}.tower-panel{padding:20px}.panel-header{display:flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;color:var(--text-primary);margin-bottom:16px}.dash-right{display:flex;flex-direction:column;gap:16px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stat-card{display:flex;align-items:center;gap:12px;padding:16px 18px}.sc-icon{flex-shrink:0}.sc-icon.gold{color:var(--accent-gold)}.sc-icon.purple{color:var(--accent-purple)}.sc-icon.blue{color:var(--accent-primary)}.sc-num{font-size:1.2rem;font-weight:700;color:var(--text-primary)}.sc-label{font-size:.72rem;color:var(--text-secondary)}.xp-panel{padding:16px 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.18s}.challenge-item:hover{background:#4f8ef714}.challenge-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.dot-green{background:var(--accent-secondary)}.dot-blue{background:var(--accent-primary)}.dot-purple{background:var(--accent-purple)}.challenge-info{flex:1;display:flex;align-items:center;gap:8px}.challenge-title{font-size:.82rem;font-weight:500;color:var(--text-primary)}.challenge-reward{font-size:.78rem;font-weight:700;color:var(--accent-gold);white-space:nowrap}.section-block{display:flex;flex-direction:column;gap:14px}.section-row-header{display:flex;align-items:center;justify-content:space-between}.section-row-header 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p{font-size:.82rem;color:var(--text-secondary)}.lock-icon,.text-muted{color:var(--text-muted)}.ide-page{display:flex;flex-direction:column;gap:16px;height:calc(100vh - 72px);animation:fadeIn .3s ease}.ide-header{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.ide-course-info{flex:1;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.ide-lesson-label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.ide-pts{display:flex;align-items:center;gap:5px;font-size:.82rem;font-weight:700;color:var(--accent-gold);background:#fbbf241a;padding:5px 12px;border-radius:99px;border:1px solid rgba(251,191,36,.25)}.lesson-progress-track{display:flex;align-items:center;gap:8px}.lesson-dot{width:32px;height:6px;border-radius:99px;background:var(--bg-elevated);border:none;cursor:pointer;transition:background .2s,transform .2s}.lesson-dot:hover{background:var(--border-hover);transform:scaleY(1.4)}.lesson-dot.active{background:var(--accent-primary)}.lesson-dot.done{background:var(--accent-secondary)}.ide-split{display:grid;grid-template-columns:340px 1fr;gap:16px;flex:1;min-height:0}.lesson-panel{display:flex;flex-direction:column;gap:16px;padding:20px;overflow-y:auto}.lp-section{display:flex;flex-direction:column;gap:8px}.lp-tag{align-self:flex-start}.lp-concept{font-size:.85rem;color:var(--text-secondary);line-height:1.7}.lp-mission{font-size:.88rem;color:var(--text-primary);font-weight:500;line-height:1.6}.lp-hint{background:var(--bg-elevated);border:1px solid var(--border);border-left:3px solid var(--accent-primary);border-radius:var(--radius-md);padding:12px}.lp-hint code{font-family:Courier New,monospace;font-size:.82rem;color:var(--accent-secondary);white-space:pre-wrap}.lp-divider{border-top:1px solid var(--border)}.lp-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}.lp-feedback{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:var(--radius-md);font-size:.82rem;font-weight:500;flex-wrap:wrap}.lp-feedback.success{background:#34d3991f;color:var(--accent-secondary);border:1px solid rgba(52,211,153,.3)}.lp-feedback.error{background:#f871711a;color:var(--accent-danger);border:1px solid rgba(248,113,113,.3)}.editor-panel{display:flex;flex-direction:column;min-height:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border)}.editor-topbar,.preview-topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:var(--bg-elevated);border-bottom:1px solid 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p{color:var(--text-secondary);font-size:.88rem;margin-top:4px}.courses-toolbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.filter-pills{display:flex;gap:8px;flex-wrap:wrap}.filter-pill{padding:7px 16px;border-radius:99px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);font-family:Poppins,sans-serif;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .18s}.filter-pill:hover{border-color:var(--border-hover);color:var(--text-primary)}.filter-pill.active{background:#4f8ef724;border-color:var(--accent-primary);color:var(--accent-primary);font-weight:600}.search-wrap{display:flex;align-items:center;gap:8px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:8px 14px;color:var(--text-secondary);flex:1;max-width:280px}.search-input{background:transparent;border:none;outline:none;font-family:Poppins,sans-serif;font-size:.85rem;color:var(--text-primary);width:100%}.search-input::placeholder{color:var(--text-muted)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.course-tile{padding:20px;display:flex;flex-direction:column;gap:10px;position:relative;overflow:hidden}.course-tile.featured-tile{border-color:#4f8ef766;box-shadow:var(--shadow-glow-blue)}.featured-pip{font-size:.68rem;font-weight:700;color:var(--accent-gold);background:#fbbf241a;border-radius:99px;padding:2px 8px;align-self:flex-start;border:1px solid rgba(251,191,36,.25)}.tile-top{display:flex;align-items:center;justify-content:space-between}.tile-emoji{font-size:1.8rem}.tile-title{font-size:.95rem;font-weight:700;color:var(--text-primary)}.tile-desc{font-size:.8rem;color:var(--text-secondary);line-height:1.6;flex:1}.tile-footer{display:flex;align-items:center;justify-content:space-between}.tile-meta{display:flex;gap:8px;align-items:center}.difficulty{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.diff-green{color:var(--accent-secondary)}.diff-blue{color:var(--accent-primary)}.diff-purple{color:var(--accent-purple)}.tile-age{font-size:.68rem;color:var(--text-muted);font-weight:500}.tile-pts{display:flex;align-items:center;gap:4px;font-size:.75rem;font-weight:700;color:var(--accent-gold)}.tile-cta{margin-top:4px;align-self:flex-start}.no-results{grid-column:1 / -1;text-align:center;padding:48px;color:var(--text-secondary);font-size:.9rem}.badges-page{display:flex;flex-direction:column;gap:20px}.badges-header{display:flex;align-items:center;gap:16px;padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);flex-wrap:wrap}.badges-icon{color:var(--accent-gold);flex-shrink:0}.badges-header h1{font-size:1.4rem;font-weight:700}.badges-header p{font-size:.82rem;color:var(--text-secondary)}.badges-progress-chip{display:flex;align-items:center;gap:10px;margin-left:auto}.bp-bar{width:120px;height:7px;background:var(--bg-elevated);border-radius:99px;overflow:hidden}.bp-fill{height:100%;background:var(--grad-gold);border-radius:99px;transition:width .8s ease}.badges-progress-chip span{font-size:.82rem;font-weight:700;color:var(--accent-gold)}.badges-section-title{font-size:1rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;font-size:.78rem}.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}.badge-card{padding:20px 16px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;position:relative;overflow:hidden;cursor:default}.badge-glow{position:absolute;top:-20px;left:50%;transform:translate(-50%);width:80px;height:80px;border-radius:50%;opacity:.15;pointer-events:none}.glow-green{background:var(--accent-secondary)}.glow-blue{background:var(--accent-primary)}.glow-gold{background:var(--accent-gold)}.glow-purple{background:var(--accent-purple)}.badge-emoji{font-size:2.4rem;position:relative;z-index:1}.badge-title{font-size:.88rem;font-weight:700;color:var(--text-primary)}.badge-desc{font-size:.72rem;color:var(--text-secondary);line-height:1.5}.locked-badge{opacity:.5;filter:grayscale(80%);cursor:not-allowed}.lock-ov{position:absolute;top:10px;right:10px;color:var(--text-muted);font-size:.7rem}.locked-emoji{opacity:.4}:root{--bg-deep: #0d1117;--bg-surface: #161b22;--bg-elevated: #1f2937;--bg-card: #21262d;--accent-primary: #4f8ef7;--accent-secondary: #34d399;--accent-gold: #fbbf24;--accent-purple: #a78bfa;--accent-danger: #f87171;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #484f58;--border: #30363d;--border-hover: #484f58;--grad-blue: linear-gradient(135deg, #4f8ef7, #3b6bd4);--grad-green: linear-gradient(135deg, #34d399, #059669);--grad-gold: linear-gradient(135deg, #fbbf24, #d97706);--grad-purple: linear-gradient(135deg, #a78bfa, #7c3aed);--grad-hero: linear-gradient(135deg, #0d1117 0%, #1a2540 50%, #0d1117 100%);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-glow-blue: 0 0 20px rgba(79, 142, 247, .3);--shadow-glow-green: 0 0 20px rgba(52, 211, 153, .28);--shadow-glow-gold: 0 0 20px rgba(251, 191, 36, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:Poppins,sans-serif;background:var(--bg-deep);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);border:none;font-family:Poppins,sans-serif;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease;text-decoration:none}.btn-primary{background:var(--grad-blue);color:#fff;box-shadow:var(--shadow-glow-blue)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px #4f8ef780}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:#4f8ef70f}.btn-success{background:var(--grad-green);color:#fff;box-shadow:var(--shadow-glow-green)}.btn-success:hover{transform:translateY(-2px)}.btn-sm{padding:6px 14px;font-size:.8rem}.btn-lg{padding:14px 28px;font-size:1rem}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:99px;font-size:.72rem;font-weight:600;letter-spacing:.03em}.badge-blue{background:#4f8ef726;color:var(--accent-primary)}.badge-green{background:#34d39926;color:var(--accent-secondary)}.badge-gold{background:#fbbf2426;color:var(--accent-gold)}.badge-purple{background:#a78bfa26;color:var(--accent-purple)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color .2s,transform .2s,box-shadow .2s}.card:hover{border-color:var(--border-hover)}.card-interactive:hover{border-color:var(--accent-primary);transform:translateY(-3px);box-shadow:var(--shadow-glow-blue);cursor:pointer}.tag{display:inline-block;padding:2px 8px;border-radius:99px;font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.divider{border:none;border-top:1px solid var(--border)}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.65}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes shimmer{0%{background-position:-200% center}to{background-position:200% center}}@keyframes slideIn{0%{transform:translate(-20px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes glow-pulse{0%,to{box-shadow:0 0 8px #4f8ef74d}50%{box-shadow:0 0 24px #4f8ef7b3}}.animate-fadeIn{animation:fadeIn .5s ease forwards}.animate-float{animation:float 4s ease-in-out infinite}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-glow-pulse{animation:glow-pulse 2.5s ease-in-out infinite}