:root{--bg:#f7f7f2;--panel:#fff;--text:#171717;--muted:#666f78;--line:#e3e1d8;--ink:#0d1117;--cyan:#0891b2;--green:#047857;--amber:#b45309;--red:#be123c}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}html{scroll-behavior:smooth}a{color:inherit}button,input,select{font:inherit}.shell{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{color:#f4f4f5;background:#08090a;height:100vh;padding:24px 18px;position:sticky;top:0}.brand{align-items:center;margin-bottom:34px;display:flex}.brand-mark{color:#f90;border-radius:8px;width:58px;height:34px;text-decoration:none;display:block;position:relative}.brand-mark:hover{background:#18181b}.brand-mark:focus-visible{outline-offset:3px;outline:2px solid #f90}.prime-arrow{border-bottom:4px solid;border-radius:0 0 52px 52px;width:36px;height:18px;position:absolute;top:7px;left:9px;transform:rotate(-7deg)}.prime-arrow:after{content:"";border-bottom:4px solid;border-right:4px solid;width:11px;height:11px;position:absolute;bottom:-6px;right:-5px;transform:rotate(-18deg)skew(10deg)}.nav-note{color:#9ca3af;border:1px solid #24262b;border-radius:8px;margin-top:28px;padding:12px;font-size:13px;line-height:1.5}.side-nav{gap:6px;margin-bottom:30px;display:grid}.side-nav a{color:#d4d4d8;border-radius:8px;align-items:center;min-height:36px;padding:8px 10px;font-size:14px;font-weight:650;text-decoration:none;display:flex}.side-nav a:hover,.side-nav a.active{color:#fff;background:#18181b}.nav-accordion{color:#d4d4d8;border-radius:8px}.nav-accordion summary{color:#a1a1aa;cursor:pointer;border-radius:8px;align-items:center;min-height:34px;padding:7px 10px 7px 28px;font-size:13px;font-weight:700;list-style:none;display:flex;position:relative}.nav-accordion summary::-webkit-details-marker{display:none}.nav-accordion 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