:root{--bg:#ffffff;--bg-secondary:#f8f9fa;--bg-code:#f1f3f5;--text:#1a1a2e;--text-secondary:#495057;--text-muted:#868e96;--border:#dee2e6;--accent:#364fc7;--accent-light:#edf2ff;--link:#364fc7;--sidebar-width:260px;--content-max-width:800px;--warning-bg:#fff3bf;--warning-border:#f59f00}@media (prefers-color-scheme:dark){:root{--bg:#1a1b26;--bg-secondary:#24253a;--bg-code:#2a2b3d;--text:#c0caf5;--text-secondary:#9aa5ce;--text-muted:#565f89;--border:#3b3d57;--accent:#7aa2f7;--accent-light:#1e2030;--link:#7aa2f7;--warning-bg:#3b2f1a;--warning-border:#e0af68}}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}code{font-family:SF Mono,Fira Code,Fira Mono,Menlo,Consolas,monospace;font-size:.875em;padding:.15em .4em;border-radius:4px}code,pre{background:var(--bg-code)}pre{padding:1rem 1.25rem;border-radius:8px;overflow-x:auto;margin:1rem 0;border:1px solid var(--border)}pre code{background:none;padding:0;font-size:.85rem;line-height:1.6}h1{font-size:2rem;font-weight:700;letter-spacing:-.02em}h1,h2{margin-bottom:.75rem}h2{font-size:1.5rem;margin-top:2.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}h2,h3{font-weight:600}h3{font-size:1.2rem;margin-top:2rem;margin-bottom:.5rem}ol,p,ul{margin-bottom:1rem}ol,ul{padding-left:1.5rem}li{margin-bottom:.35rem}table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.9rem}td,th{padding:.6rem .85rem;border:1px solid var(--border);text-align:left}th{background:var(--bg-secondary);font-weight:600}blockquote{border-left:3px solid var(--warning-border);background:var(--warning-bg);padding:.75rem 1rem;margin:1rem 0;border-radius:0 6px 6px 0}blockquote p:last-child{margin-bottom:0}hr{border:none;border-top:1px solid var(--border);margin:2rem 0}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);padding:1.5rem 0;position:fixed;top:0;left:0;bottom:0;overflow-y:auto}.sidebar-header{padding:0 1.25rem 1.25rem;border-bottom:1px solid var(--border);margin-bottom:1rem}.sidebar-header h2{font-size:1.15rem;margin:0;padding:0;border:none;color:var(--text)}.sidebar-header p{font-size:.8rem;color:var(--text-muted);margin:.25rem 0 0}.sidebar nav{padding:0 .75rem}.nav-section{margin-bottom:1.25rem}.nav-section-title{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:0 .5rem;margin-bottom:.35rem}.nav-link{display:block;padding:.35rem .5rem;border-radius:6px;color:var(--text-secondary);font-size:.875rem;transition:background .15s,color .15s}.nav-link:hover{background:var(--bg);color:var(--text);text-decoration:none}.nav-link.active{background:var(--accent-light);color:var(--accent);font-weight:500}.content{margin-left:var(--sidebar-width);flex:1 1;padding:2.5rem 3rem;max-width:calc(var(--content-max-width) + var(--sidebar-width) + 6rem)}.content>:first-child{margin-top:0}@media (max-width:768px){.sidebar{position:relative;width:100%;border-right:none;border-bottom:1px solid var(--border)}.content{margin-left:0;padding:1.5rem}.layout{flex-direction:column}}