:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:#e6edf3;text-rendering:optimizelegibility;font-synthesis:none;background:#0d1117;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}.app-shell{background:radial-gradient(circle at 100% 0,#25bf4426,#0000 28rem),#0d1117;grid-template-columns:320px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0d1117e6;border-right:1px solid #e6edf314;height:100vh;padding:24px;position:sticky;top:0;overflow-y:auto}.brand{border-bottom:1px solid #e6edf314;align-items:center;gap:14px;margin-bottom:24px;padding-bottom:24px;display:flex}.brand-mark{color:#07110a;background:#25bf44;border-radius:14px;place-items:center;width:44px;height:44px;font-weight:900;display:grid}.brand strong,.brand small{display:block}.brand small{color:#8b949e;margin-top:4px}.nav-list{gap:8px;display:grid}.nav-item{color:#8b949e;border:1px solid #0000;border-radius:14px;grid-template-columns:42px 1fr;align-items:center;min-height:48px;padding:10px 12px;transition:all .16s;display:grid}.nav-item:hover,.nav-item.active{color:#e6edf3;background:#25bf441a;border-color:#25bf4461}.nav-index{color:#25bf44;letter-spacing:.08em;font-size:.78rem;font-weight:800}.content-panel{justify-content:center;align-items:center;padding:48px;display:flex}.topic-card{background:#161b22c7;border:1px solid #e6edf31a;border-radius:28px;width:min(100%,980px);padding:40px;box-shadow:0 24px 80px #00000052}.topic-header{max-width:760px}.eyebrow{color:#25bf44;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;font-weight:800}h1,h2,p{margin-top:0}h1{letter-spacing:-.06em;margin-bottom:14px;font-size:clamp(2.3rem,5vw,4.8rem);line-height:.95}h2{margin-bottom:10px;font-size:1rem}p{color:#b8c0cc;line-height:1.7}.concept-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:34px 0;display:grid}.concept-box{background:#0d11178f;border:1px solid #e6edf314;border-radius:20px;padding:22px}.concept-box p{margin-bottom:0}.section-title{justify-content:space-between;align-items:end;gap:24px;margin-bottom:14px;display:flex}.section-title p{max-width:420px;margin-bottom:0;font-size:.95rem}.code-block{color:#d8dee9;tab-size:2;background:#070a0f;border:1px solid #25bf4438;border-radius:20px;max-height:420px;margin:0;padding:24px;line-height:1.65;overflow:auto}.topic-footer{color:#8b949e;justify-content:space-between;align-items:center;gap:18px;margin-top:24px;display:flex}.topic-footer a{color:#25bf44;font-weight:800}@media (width<=900px){.app-shell{grid-template-columns:1fr}.sidebar{border-bottom:1px solid #e6edf314;border-right:0;height:auto;position:static}.nav-list{grid-template-columns:repeat(2,minmax(0,1fr))}.content-panel{padding:24px}.topic-card{padding:28px}.concept-grid,.section-title{grid-template-columns:1fr;display:grid}}@media (width<=560px){.nav-list{grid-template-columns:1fr}.content-panel{padding:16px}.topic-card{border-radius:22px;padding:22px}.topic-footer{flex-direction:column;align-items:flex-start}}