@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Syne:wght@400;500;600;700;800&display=swap";:root{--bg: #f8f9fc;--surface: #ffffff;--surface-2: #f1f3f8;--border: #e2e6ef;--border-2: #d0d5e8;--primary: #7c3aed;--primary-glow: rgba(124, 58, 237, .12);--secondary: #0891b2;--secondary-glow: rgba(8, 145, 178, .12);--success: #059669;--success-glow: rgba(5, 150, 105, .12);--warning: #d97706;--warning-glow: rgba(217, 119, 6, .12);--danger: #dc2626;--danger-glow: rgba(220, 38, 38, .12);--text: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;--font-sans: "Syne", system-ui, sans-serif;--radius: 8px;--radius-lg: 12px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%}body{background-color:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f3f8}::-webkit-scrollbar-thumb{background:#d0d5e8;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}code,pre{font-family:var(--font-mono)}button{cursor:pointer;border:none;background:none;font-family:inherit}::selection{background:var(--primary-glow);color:var(--text)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:280px;min-width:280px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:24px 20px 20px;border-bottom:1px solid var(--border)}.sidebar-logo{display:flex;align-items:center;gap:10px;margin-bottom:8px}.sidebar-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.sidebar-title{font-family:var(--font-sans);font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.02em}.sidebar-subtitle{font-size:11px;color:var(--text-secondary);font-family:var(--font-mono);margin-top:2px}.sidebar-nav{flex:1;overflow-y:auto;padding:12px}.nav-item{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:var(--radius);cursor:pointer;transition:all .2s ease;margin-bottom:4px;border:1px solid transparent;position:relative}.nav-item:hover{background:var(--surface-2);border-color:var(--border)}.nav-item.active{background:var(--primary-glow);border-color:var(--primary)}.nav-item-number{width:24px;height:24px;border-radius:6px;background:var(--border);color:var(--text-secondary);font-family:var(--font-mono);font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s ease}.nav-item.active .nav-item-number{background:var(--primary);color:#fff}.nav-item-content{flex:1;min-width:0}.nav-item-title{font-size:13px;font-weight:600;color:var(--text);line-height:1.3}.nav-item.active .nav-item-title{color:var(--primary)}.nav-item-desc{font-size:11px;color:var(--text-secondary);margin-top:2px;line-height:1.4}.main-content{flex:1;overflow:hidden;display:flex;flex-direction:column}.chapter-content{flex:1;overflow-y:auto;padding:32px 40px}.chapter-header{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--border)}.chapter-badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-glow);border:1px solid var(--primary);color:var(--primary);font-family:var(--font-mono);font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;margin-bottom:12px;letter-spacing:.05em;text-transform:uppercase}.chapter-title{font-family:var(--font-sans);font-size:28px;font-weight:800;color:var(--text);letter-spacing:-.03em;line-height:1.2;margin-bottom:10px}.chapter-title span{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.chapter-desc{font-size:14px;color:var(--text-secondary);max-width:640px;line-height:1.7}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.card-title{font-family:var(--font-mono);font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:13px;font-weight:600;font-family:var(--font-sans);transition:all .2s ease;cursor:pointer;border:1px solid transparent}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:#6d28d9;box-shadow:0 0 20px var(--primary-glow)}.btn-primary:disabled{opacity:.4;cursor:not-allowed}.btn-secondary{background:var(--surface-2);color:var(--text);border-color:var(--border-2)}.btn-secondary:hover{background:var(--border);border-color:var(--border-2)}.btn-outline{background:transparent;color:var(--secondary);border-color:var(--secondary)}.btn-outline:hover{background:var(--secondary-glow)}.code-block{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;font-family:var(--font-mono);font-size:12.5px;line-height:1.8;overflow-x:auto}.code-keyword{color:#7c3aed}.code-function{color:#0891b2}.code-string{color:#16a34a}.code-number{color:#d97706}.code-comment{color:var(--text-muted);font-style:italic}.code-tag{color:#dc2626}.code-attr{color:#d97706}.code-value{color:#16a34a}.code-prop{color:#0f172a}.code-punc{color:#475569}.summary-box{background:linear-gradient(135deg,#7c3aed0a,#0891b20a);border:1px solid var(--border-2);border-left:3px solid var(--primary);border-radius:var(--radius);padding:20px 24px;margin-top:32px}.summary-box-title{font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px;display:flex;align-items:center;gap:6px}.summary-box ul{list-style:none;display:flex;flex-direction:column;gap:8px}.summary-box li{font-size:13px;color:var(--text-secondary);padding-left:16px;position:relative;line-height:1.6}.summary-box li:before{content:"▸";position:absolute;left:0;color:var(--secondary)}.fiber-node{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;font-family:var(--font-mono);font-size:11px;min-width:160px;position:relative;transition:all .3s ease}.fiber-node.highlight{border-color:var(--secondary);box-shadow:0 0 16px var(--secondary-glow),0 0 40px var(--secondary-glow);background:#06b6d40d}.fiber-node.active{border-color:var(--primary);box-shadow:0 0 16px var(--primary-glow),0 0 40px var(--primary-glow);background:#7c3aed14}.fiber-node.complete{border-color:var(--success);box-shadow:0 0 12px var(--success-glow)}.fiber-node.modified{border-color:var(--warning);box-shadow:0 0 12px var(--warning-glow)}.fiber-node.added{border-color:var(--success);box-shadow:0 0 12px var(--success-glow)}.fiber-node.deleted{border-color:var(--danger);box-shadow:0 0 12px var(--danger-glow);opacity:.6}.fiber-node-type{font-size:12px;font-weight:700;color:var(--secondary);margin-bottom:6px}.fiber-node-field{display:flex;gap:4px;margin-bottom:2px;line-height:1.5}.fiber-node-key{color:var(--text-muted)}.fiber-node-val{color:var(--text-secondary)}.fiber-node-val.pointer{color:var(--primary)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.gap-8{gap:32px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.w-full{width:100%}.text-center{text-align:center}@keyframes pulse-glow{0%,to{opacity:1}50%{opacity:.6}}@keyframes scan-line{0%{transform:translateY(-100%)}to{transform:translateY(100%)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.animate-pulse-glow{animation:pulse-glow 2s ease-in-out infinite}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-family:var(--font-mono);font-size:10px;font-weight:600}.badge-primary{background:var(--primary-glow);color:var(--primary);border:1px solid rgba(124,58,237,.3)}.badge-secondary{background:var(--secondary-glow);color:var(--secondary);border:1px solid rgba(6,182,212,.3)}.badge-success{background:var(--success-glow);color:var(--success);border:1px solid rgba(16,185,129,.3)}.badge-warning{background:var(--warning-glow);color:var(--warning);border:1px solid rgba(245,158,11,.3)}.badge-danger{background:var(--danger-glow);color:var(--danger);border:1px solid rgba(239,68,68,.3)}.divider{height:1px;background:var(--border);margin:20px 0}.step-indicator{display:flex;gap:4px;align-items:center}.step-dot{width:6px;height:6px;border-radius:50%;background:var(--border-2);transition:all .3s ease}.step-dot.active{background:var(--primary);box-shadow:0 0 8px var(--primary-glow)}.step-dot.done{background:var(--success)}.noise-bg{position:relative;overflow:hidden}.noise-bg:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 25% 25%,rgba(124,58,237,.02) 0%,transparent 50%),radial-gradient(circle at 75% 75%,rgba(8,145,178,.02) 0%,transparent 50%);pointer-events:none}.arrow-label{font-family:var(--font-mono);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.tabs{display:flex;gap:2px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:4px;margin-bottom:16px}.tab{flex:1;padding:7px 12px;border-radius:6px;font-size:12px;font-weight:600;font-family:var(--font-sans);color:var(--text-secondary);background:transparent;transition:all .2s ease;cursor:pointer;border:none;text-align:center}.tab.active{background:var(--surface-2);color:var(--text);box-shadow:0 1px 4px #0000001a}.tab:hover:not(.active){color:var(--text);background:#0000000a}