:root{--asphalt:#20252b;--asphalt2:#2d343c;--paper:#f7f4ec;--card:#fffdf7;--ink:#1b1e22;--muted:#5b616a;--tape:#f0bf2c;--signal:#c8551f;--clear:#2b7a4b;--tight:#a8740b;--line:#ddd6c4}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 "Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:#1d5c8f}
a:hover{color:var(--signal)}
.rff-cab{background:var(--asphalt);color:#fff;padding:14px 16px 0}
.rff-cab-in{max-width:1080px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
.rff-mark{color:#fff;text-decoration:none;font-weight:800;font-size:1.25rem;letter-spacing:.02em;display:flex;align-items:center;gap:10px}
.rff-mark b{display:inline-block;background:var(--tape);color:var(--asphalt);border-radius:4px;padding:1px 7px;font-family:ui-monospace,Consolas,monospace;font-size:.95rem}
.rff-lanes{display:flex;flex-wrap:wrap;gap:4px}
.rff-lanes a{color:#e7e9ec;text-decoration:none;padding:6px 10px;border-radius:4px;font-size:.93rem}
.rff-lanes a:hover,.rff-lanes a[aria-current]{background:var(--asphalt2);color:var(--tape)}
.rff-tape{height:14px;margin-top:12px;background:var(--tape) repeating-linear-gradient(90deg,var(--asphalt) 0 2px,transparent 2px 12px);background-size:12px 7px;background-repeat:repeat-x;background-position:0 0}
.rff-road{max-width:1080px;margin:0 auto;padding:22px 16px 40px}
h1{font-size:1.85rem;line-height:1.2;margin:.2em 0 .45em}
h2{font-size:1.35rem;margin:1.6em 0 .5em;padding-bottom:4px;border-bottom:3px solid var(--tape);display:inline-block}
h3{font-size:1.1rem;margin:1.2em 0 .4em}
.rff-kicker{font-family:ui-monospace,Consolas,monospace;color:var(--signal);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin:0}
.rff-lede{font-size:1.08rem;max-width:760px}
.rff-bay{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--asphalt);border-radius:6px;padding:16px 18px;margin:16px 0}
.rff-bay.warn{border-left-color:var(--signal)}
.rff-gauge{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:16px 0}
.rff-gauge div{background:var(--asphalt);color:#fff;border-radius:6px;padding:12px}
.rff-gauge strong{display:block;font-family:ui-monospace,Consolas,monospace;font-size:1.5rem;color:var(--tape)}
.rff-gauge span{font-size:.86rem;color:#d3d7dc}
.rff-rig{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;align-items:end}
.rff-rig label{display:block;font-weight:600;font-size:.92rem;margin-bottom:4px}
.rff-rig input,.rff-rig select{width:100%;padding:9px 10px;font-size:1rem;border:2px solid var(--asphalt);border-radius:5px;background:#fff;color:var(--ink)}
.rff-go{background:var(--signal);color:#fff;border:0;border-radius:5px;padding:11px 16px;font-size:1rem;font-weight:700;cursor:pointer;width:100%}
.rff-go:hover{background:#a8441a}
.rff-out{margin-top:18px}
.rff-hit{border-top:1px solid var(--line);padding:12px 0;display:grid;grid-template-columns:1fr auto;gap:6px 14px}
.rff-hit h3{margin:0;font-size:1.02rem}
.rff-hit p{margin:0;color:var(--muted);font-size:.9rem}
.rff-pills{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;align-items:start}
.rff-pill{font-family:ui-monospace,Consolas,monospace;font-size:.82rem;border-radius:999px;padding:2px 9px;white-space:nowrap}
.p-ok{background:#dcefe2;color:var(--clear)}.p-big{background:#f9ecc8;color:#7a5406}.p-none{background:#e8e8e8;color:#444}
.rff-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:6px;background:var(--card)}
table.rff-sheet{border-collapse:collapse;width:100%;font-size:.88rem;min-width:640px}
.rff-sheet th{background:var(--asphalt);color:#fff;text-align:left;padding:7px 8px;font-weight:600;position:sticky;top:0}
.rff-sheet td{padding:6px 8px;border-top:1px solid var(--line);vertical-align:top}
.rff-sheet td.n{font-family:ui-monospace,Consolas,monospace;text-align:right}
.rff-sheet tr.gap td{background:#fff3e6}
.rff-sheet tr.lit td{background:#e3f3e8}
.rff-sheet tr.dim td{color:#9a9ea4}
details.rff-camp{background:var(--card);border:1px solid var(--line);border-radius:6px;margin:10px 0;padding:0}
details.rff-camp summary{cursor:pointer;padding:12px 14px;font-weight:700;list-style:none}
details.rff-camp summary::-webkit-details-marker{display:none}
details.rff-camp summary:before{content:"+";display:inline-block;width:1.2em;color:var(--signal)}
details.rff-camp[open] summary:before{content:"-"}
details.rff-camp summary small{font-weight:400;color:var(--muted);display:block;margin-left:1.2em}
.rff-campbody{padding:0 14px 14px}
.rff-strip{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--asphalt);color:#fff;border-radius:6px;padding:10px 12px;margin:14px 0}
.rff-strip input{width:90px;padding:6px 8px;border-radius:4px;border:0;font-size:1rem}
.rff-strip output{font-family:ui-monospace,Consolas,monospace;color:var(--tape)}
.rff-dest{columns:2 260px;column-gap:24px;padding-left:18px}
.rff-dest li{margin:3px 0;break-inside:avoid}
.rff-dest small{color:var(--muted)}
.rff-steps{counter-reset:s;list-style:none;padding:0}
.rff-steps li{counter-increment:s;padding:8px 0 8px 46px;position:relative}
.rff-steps li:before{content:counter(s);position:absolute;left:0;top:7px;width:32px;height:32px;border-radius:50%;background:var(--tape);color:var(--asphalt);font-weight:800;text-align:center;line-height:32px}
.rff-tail{background:var(--asphalt);color:#cfd3d8;font-size:.88rem;padding:24px 16px}
.rff-tail-in{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.rff-tail a{color:var(--tape)}
.rff-tail p{margin:.3em 0}
.rff-crumb{font-size:.86rem;color:var(--muted);margin:0 0 6px}
.rff-facts{display:grid;grid-template-columns:minmax(150px,auto) 1fr;gap:0;margin:16px 0;background:var(--card);border:1px solid var(--line);border-left:6px solid var(--tape);border-radius:6px;max-width:760px}
.rff-facts dt,.rff-facts dd{margin:0;padding:6px 12px;border-top:1px solid var(--line)}
.rff-facts dt{font-weight:600}
.rff-facts dt:first-of-type,.rff-facts dt:first-of-type+dd{border-top:0}
.rff-facts dd{font-family:ui-monospace,Consolas,monospace;font-size:.93rem}
.rff-rg{margin:.4em 0 .8em}
.rff-src{font-size:.86rem;color:var(--muted);margin:.5em 0}
small.footnote{display:block;color:var(--muted);font-size:.84rem;margin-top:1.6em}
@media (max-width:520px){.rff-facts{grid-template-columns:1fr}.rff-facts dd{border-top:0;padding-top:0}}
@media (max-width:600px){h1{font-size:1.5rem}.rff-hit{grid-template-columns:1fr}.rff-pills{justify-content:flex-start}}