:root{--rf-bg:#0f1419;--rf-surface:#171d26;--rf-ink:#e6e9ee;--rf-muted:#8b95a5;--rf-line:#232b36;--rf-accent:#4c8dff;--rf-radius:4px;--rf-max:1080px;--rf-sans:'Segoe UI',system-ui,Roboto,'Helvetica Neue',Arial,sans-serif;--rf-mono:ui-monospace,'Cascadia Mono',Menlo,'DejaVu Sans Mono',monospace;--rf-serif:'Hoefler Text',Georgia,Cambria,'Times New Roman',serif}
*,*::before,*::after{box-sizing:border-box}
body,h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0}
body{font-family:var(--rf-sans);background:var(--rf-bg);color:var(--rf-ink);line-height:1.56;-webkit-font-smoothing:antialiased;font-size:14.6px}
a{color:var(--rf-accent);text-decoration:none}
a:hover{text-decoration:underline}
ul,ol{list-style:none}
.wrap{max-width:var(--rf-max);margin:0 auto;padding:0 1.32rem}
.brand svg{width:20px;height:20px;flex:none}
.method{font-family:var(--rf-mono);font-size:.72rem;font-weight:600;letter-spacing:.06em;padding:.15rem .4rem;border:1px solid var(--rf-line);border-radius:var(--rf-radius);color:var(--rf-accent)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#2ea043;margin-right:.5rem;vertical-align:middle}
.header{border-bottom:1px solid var(--rf-line);padding:0.85rem 0;background:var(--rf-bg)}
.meta b{display:block;color:var(--rf-ink);font-weight:500;margin-top:.15rem;font-family:var(--rf-mono)}
.h1{font-family:var(--rf-sans);font-weight:600;font-size:clamp(1.7rem,3.6vw,2.16rem);line-height:1.15;letter-spacing:-.02em;max-width:22ch}
@media(max-width:760px){.side{grid-template-columns:1fr}.nav ul{gap:.9rem}}
.mono{font-family:var(--rf-mono);font-size:.85em}
.list li{padding:0.56rem 0;border-bottom:1px solid var(--rf-line);display:flex;gap:.9rem;align-items:baseline;flex-wrap:wrap}
.code{font-family:var(--rf-mono);font-size:.82rem;background:var(--rf-surface);border:1px solid var(--rf-line);border-radius:var(--rf-radius);padding:0.8rem 0.94rem;overflow-x:auto;line-height:1.6;color:var(--rf-ink)}
.card{border:1px solid var(--rf-line);border-radius:var(--rf-radius);padding:0.99rem;background:var(--rf-surface)}
.meta{display:flex;gap:1.5rem;flex-wrap:wrap;color:var(--rf-muted);font-size:.83rem;margin-top:1.22rem}
.prose p{max-width:66ch;margin-bottom:.9rem;color:var(--rf-muted);line-height:1.65}
.h2{font-family:var(--rf-sans);font-weight:600;font-size:1.11rem;letter-spacing:-.01em;margin-bottom:0.75rem}
.card p{color:var(--rf-muted);font-size:.9rem;line-height:1.55}
.side{display:grid;gap:1.88rem;grid-template-columns:200px minmax(0,1fr);align-items:start}
.eyebrow{font-family:var(--rf-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--rf-muted);margin-bottom:0.75rem}
.status{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:0.66rem 0;border-bottom:1px solid var(--rf-line)}
.card h3{font-size:0.89rem;font-weight:600;margin-bottom:.35rem}
.brand{font-family:var(--rf-sans);font-weight:600;font-size:0.99rem;color:var(--rf-ink);display:inline-flex;align-items:center;gap:.5rem;letter-spacing:-.01em}
.toc li{padding:.3rem 0;font-size:.87rem}.toc a{color:var(--rf-muted)}
.footer{border-top:1px solid var(--rf-line);padding:1.41rem 0;color:var(--rf-muted);font-size:.82rem}
.table{width:100%;border-collapse:collapse;font-size:.88rem}.table th{text-align:left;font-weight:600;color:var(--rf-muted);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;padding:.55rem .8rem;border-bottom:1px solid var(--rf-line)}.table td{padding:.6rem .8rem;border-bottom:1px solid var(--rf-line);vertical-align:top}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1.32rem;flex-wrap:wrap}
.nav a{color:var(--rf-muted);font-size:.88rem}.nav a:hover{color:var(--rf-ink);text-decoration:none}
.lede{padding:2.68rem 0 2.44rem;border-bottom:1px solid var(--rf-line)}
.section{padding:2.44rem 0}
.grid{display:grid;gap:0.85rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.nav ul{display:flex;gap:1.22rem;flex-wrap:wrap}
.sub{color:var(--rf-muted);max-width:62ch;margin-top:0.66rem;font-size:0.94rem}