:root{--bg-primary: #050508;--bg-secondary: #0c0c12;--bg-card: #101018;--bg-card-hover: #14141e;--bg-elevated: #1a1a26;--border-subtle: rgba(255, 255, 255, .06);--border-medium: rgba(255, 255, 255, .1);--border-accent: rgba(139, 92, 246, .3);--text-primary: #f0f0f5;--text-secondary: rgba(240, 240, 245, .6);--text-tertiary: rgba(240, 240, 245, .35);--accent-violet: #8b5cf6;--accent-violet-dim: rgba(139, 92, 246, .15);--accent-cyan: #06b6d4;--accent-cyan-dim: rgba(6, 182, 212, .12);--accent-emerald: #10b981;--accent-emerald-dim: rgba(16, 185, 129, .12);--accent-amber: #f59e0b;--accent-amber-dim: rgba(245, 158, 11, .12);--accent-rose: #f43f5e;--accent-rose-dim: rgba(244, 63, 94, .12);--accent-blue: #3b82f6;--accent-blue-dim: rgba(59, 130, 246, .12);--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--shadow-card: 0 1px 3px rgba(0,0,0,.3), 0 0 0 1px var(--border-subtle);--shadow-elevated: 0 4px 24px rgba(0,0,0,.4), 0 0 0 1px var(--border-subtle)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;color-scheme:dark}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#fff3}.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:#050508cc;-webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid var(--border-subtle)}.nav-inner{max-width:1400px;margin:0 auto;padding:0 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4rem;text-align:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:800px;height:500px;background:radial-gradient(ellipse,rgba(139,92,246,.08) 0%,transparent 70%);pointer-events:none}.hero-content{position:relative;max-width:800px;margin:0 auto}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem 1rem;border-radius:100px;background:var(--accent-violet-dim);border:1px solid var(--border-accent);font-size:.75rem;font-weight:500;color:var(--accent-violet);margin-bottom:1.5rem;font-family:var(--font-mono)}.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-violet);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.hero h1{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:1rem;background:linear-gradient(135deg,#fff 30%,var(--accent-violet) 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var(--border-subtle)}.section-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.section-title{font-size:1.15rem;font-weight:600;letter-spacing:-.01em}.section-desc{font-size:.78rem;color:var(--text-tertiary);margin-left:auto}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:1.5rem;transition:all 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ease}.checklist{list-style:none;display:flex;flex-direction:column;gap:.4rem}.checklist li{display:flex;align-items:flex-start;gap:.6rem;font-size:.82rem;color:var(--text-secondary);line-height:1.5}.check-icon{flex-shrink:0;width:18px;height:18px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:1px}.check-done{background:var(--accent-emerald-dim);color:var(--accent-emerald);border:1px solid rgba(16,185,129,.2)}.check-pending{background:var(--bg-elevated);color:var(--text-tertiary);border:1px solid var(--border-subtle)}.code-block{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:1rem 1.25rem;font-family:var(--font-mono);font-size:.78rem;line-height:1.7;overflow-x:auto;color:var(--text-secondary)}.code-block .kw{color:var(--accent-violet)}.code-block .fn{color:var(--accent-cyan)}.code-block .str{color:var(--accent-emerald)}.code-block 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0}.concept-node{padding:.5rem 1rem;border-radius:var(--radius-sm);font-size:.78rem;font-weight:500;font-family:var(--font-mono);border:1px solid var(--border-subtle);background:var(--bg-card)}.concept-arrow{color:var(--text-tertiary);font-size:1.2rem}