:root{--color-bg-primary:#0f1115;--color-bg-secondary:#1a1d23;--color-surface:#242830;--color-text-primary:#e6edf3;--color-text-secondary:#8b949e;--color-text-muted:#484f58;--color-accent-blue:#2f81f7;--color-accent-gold:#d29922;--color-border:#30363d;--font-ui:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;--font-mono:"JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--spacing-unit:8px;--radius-standard:8px;--transition-fast:.2s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-bg-primary);color:var(--color-text-primary);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;line-height:1.6}.nav-header{border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:1000;background:#0f1115cc;justify-content:space-between;align-items:center;height:80px;padding:0 40px;display:flex;position:sticky;top:0}.brand{letter-spacing:-.04em;color:var(--color-text-primary);font-size:1.4rem;font-weight:800;text-decoration:none}.nav-links{align-items:center;gap:32px;display:flex}.nav-link{color:var(--color-text-secondary);transition:color var(--transition-fast);font-size:.95rem;font-weight:500;text-decoration:none}.nav-link:hover{color:var(--color-text-primary)}.btn-signup{background:var(--color-accent-blue);color:#fff;transition:opacity var(--transition-fast);border-radius:99px;padding:10px 24px;font-size:.9rem;font-weight:600;text-decoration:none}.btn-signup:hover{opacity:.9}.section{max-width:1200px;margin:0 auto;padding:120px 40px}.hero{text-align:center;padding:160px 40px 120px}.hero h1{letter-spacing:-.05em;background:linear-gradient(#fff,#8b949e);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:24px;font-size:4rem;font-weight:800;line-height:1.1}.hero p{color:var(--color-text-secondary);max-width:800px;margin:0 auto 40px;font-size:1.4rem}.treatise-grid{grid-template-columns:300px 1fr;gap:60px;margin-top:80px;display:grid}.treatise-nav{height:fit-content;position:sticky;top:140px}.treatise-nav-item{border-radius:var(--radius-standard);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);margin-bottom:8px;padding:16px}.treatise-nav-item.active{background:var(--color-surface);color:var(--color-text-primary);font-weight:600}.treatise-content{padding-left:20px}.transformation-card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-standard);margin-bottom:40px;padding:40px}.pricing-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px;margin-top:60px;display:grid}.pricing-card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-standard);flex-direction:column;padding:48px;display:flex}.pricing-card.featured{border-color:var(--color-accent-gold);position:relative;transform:scale(1.05)}.price{margin:24px 0;font-size:3rem;font-weight:800}.price span{color:var(--color-text-muted);font-size:1rem}.feature-list{margin-bottom:40px;list-style:none}.feature-list li{color:var(--color-text-secondary);align-items:center;gap:12px;margin-bottom:16px;display:flex}.feature-list li:before{content:"✓";color:var(--color-accent-blue);font-weight:700}.accent-gold{color:var(--color-accent-gold)}.text-center{text-align:center}