:root{--color-bg:#fff;--color-bg-secondary:#f6f8fa;--color-bg-tertiary:#f0f3f6;--color-text:#24292f;--color-text-secondary:#57606a;--color-border:#d0d7de;--color-border-light:#e5e8eb;--color-accent:#0969da;--color-accent-hover:#0860ca;--color-white:#fff;--shadow-sm:0 1px 3px #0000001a;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-mono:ui-monospace, "SFMono-Regular", "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--radius-sm:6px;--header-height:64px;--content-width:1200px;--prose-width:768px;--transition-fast:.15s ease}*,:before,:after{box-sizing:border-box}html{background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);scroll-behavior:smooth;font-size:16px;line-height:1.5}body{min-width:320px;margin:0}img{max-width:100%;display:block}a{color:var(--color-accent);transition:color var(--transition-fast), opacity var(--transition-fast);text-decoration:none}a:hover,a:focus-visible{color:var(--color-accent-hover);text-decoration:underline}main{padding-bottom:var(--space-16)}h1,h2,h3,h4,h5,h6{color:var(--color-text);letter-spacing:-.01em;margin:0 0 var(--space-4);font-weight:600;line-height:1.25}h1{font-size:clamp(2rem,5vw,3rem)}h2{font-size:clamp(1.5rem,3vw,2rem)}h3{font-size:1.25rem}p,li{margin:0}ul,ol{padding-left:var(--space-6);margin:0}li+li{margin-top:var(--space-2)}code,pre{font-family:var(--font-mono);font-size:.9375rem}code{background:var(--color-bg-secondary);border:1px solid var(--color-border-light);border-radius:var(--radius-sm);padding:0 var(--space-1)}pre{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-4);overflow-x:auto}pre code{background:0 0;border:0;padding:0}.shell{max-width:var(--prose-width);width:100%;margin:0 auto;padding-left:1.5rem;padding-right:1.5rem}.shell--wide{max-width:var(--content-width)}.site-header,.site-footer{background:var(--color-bg)}.site-header{border-bottom:1px solid var(--color-border);z-index:10;position:sticky;top:0}.site-header .shell,.site-footer .shell{align-items:center;gap:var(--space-6);justify-content:space-between;display:flex}.site-header .shell{min-height:var(--header-height)}.site-footer{border-top:1px solid var(--color-border);margin-top:var(--space-16);padding-bottom:var(--space-8);padding-top:var(--space-8)}.brand,.button,.card-tag,.eyebrow,.nav-list a{font-size:.875rem}.brand{color:var(--color-text);flex-shrink:0;font-weight:600;text-decoration:none;display:inline-flex}.brand:hover,.brand:focus-visible{color:var(--color-accent-hover)}.nav-list{align-items:center;gap:var(--space-3) var(--space-4);flex-wrap:wrap;justify-content:flex-end;margin:0;padding:0;list-style:none;display:flex}.nav-list a{color:var(--color-text-secondary);font-weight:500;line-height:1.25;display:inline-flex}.nav-list a:hover,.nav-list a:focus-visible{color:var(--color-accent)}.hero,.split-panel,.card,.article>section{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}.hero{margin-top:var(--space-8);padding:var(--space-12)}.lede{color:var(--color-text-secondary);margin-top:var(--space-4);max-width:42rem;font-size:1.125rem;line-height:1.75}.eyebrow,.card-tag{color:var(--color-text-secondary);letter-spacing:.04em;margin-bottom:var(--space-3);text-transform:uppercase;font-weight:600;line-height:1.25}.hero-actions{gap:var(--space-3);margin-top:var(--space-6);flex-wrap:wrap;display:flex}.button{background:var(--color-accent);border:1px solid var(--color-accent);border-radius:var(--radius-sm);color:var(--color-white);min-height:40px;padding:0 var(--space-4);transition:background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);justify-content:center;align-items:center;font-weight:600;display:inline-flex}.button:hover,.button:focus-visible{background:var(--color-accent-hover);border-color:var(--color-accent-hover);color:var(--color-white);text-decoration:none}.button--ghost{background:var(--color-bg);color:var(--color-accent)}.button--ghost:hover,.button--ghost:focus-visible{background:var(--color-bg-secondary);color:var(--color-accent-hover)}.card-grid{gap:var(--space-6);margin-top:var(--space-16);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));display:grid}.section-heading{grid-column:1/-1}.section-heading h2{margin-bottom:0}.card{gap:var(--space-3);padding:var(--space-6);flex-direction:column;display:flex}.card h3{margin-bottom:0}.card p:last-of-type{color:var(--color-text-secondary)}.inline-link{align-self:flex-start;margin-top:auto;font-weight:600}.split-panel{gap:var(--space-6);margin-top:var(--space-16);padding:var(--space-8);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.split-panel p:not(.eyebrow){color:var(--color-text-secondary)}.article{padding-top:var(--space-10)}.article h1,.article>p,.article>ul,.article>ol{max-width:var(--prose-width)}.article>p,.article li,.article section p{line-height:1.75}.article>p+p,.article section p+p,.article section p+ul,.article section p+ol,.article section ul+p,.article section ol+p{margin-top:var(--space-4)}.article>section{margin-top:var(--space-8);padding:var(--space-6)}.article section>*+*{margin-top:var(--space-4)}.related-links p{gap:var(--space-2);flex-direction:column;display:flex}.footer-grid{align-items:center}.footer-copy{color:var(--color-text-secondary);max-width:34rem;line-height:1.75}@media (width<=768px){.site-header .shell,.site-footer .shell{flex-direction:column;align-items:flex-start}.nav-list{justify-content:flex-start}.hero{padding:var(--space-8)}.split-panel{grid-template-columns:1fr}}@media (width<=480px){.hero{padding:var(--space-6)}.article{padding-top:var(--space-8)}}