:root{
  --ink:#141c24; --slate:#2f4356; --steel:#5b7186; --mute:#71818f;
  --line:#dde4ea; --line2:#eef2f5; --paper:#fff; --wash:#f5f8fa;
  --amber:#b4741a; --amber-lt:#f0e2cd; --max:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font:17px/1.68 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--slate);text-underline-offset:2px;text-decoration-thickness:1px}
a:hover{color:var(--amber)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* header */
.top{border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:70px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink);
  font-weight:700;letter-spacing:-.015em;font-size:19px;white-space:nowrap}
.brand .mark{display:inline-block;width:13px;height:13px;border:3px solid var(--slate);
  border-right-color:var(--amber);border-bottom-color:var(--amber);flex:none;transform:translateY(1px)}
.brand small{font-weight:400;color:var(--mute);font-size:12.5px;letter-spacing:.02em}
nav.main{display:flex;gap:22px;flex-wrap:wrap}
nav.main a{color:var(--steel);text-decoration:none;font-size:14.5px;font-weight:500;
  padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover{color:var(--ink)}
nav.main a[aria-current]{color:var(--ink);border-bottom-color:var(--amber)}

/* hero */
.hero{border-bottom:1px solid var(--line);background:var(--wash)}
.hero .wrap{padding:56px 24px 48px}
.hero h1{margin:0 0 16px;font-size:clamp(30px,4.6vw,46px);line-height:1.13;
  letter-spacing:-.025em;font-weight:700;max-width:19ch}
.hero .lede{margin:0;font-size:clamp(17px,2vw,20px);line-height:1.55;color:var(--slate);
  max-width:62ch}
.hero .kicker{margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--amber)}
.heroimg{margin:0;border-bottom:1px solid var(--line);background:var(--wash)}
.heroimg img{width:100%;max-height:420px;object-fit:cover}
.heroimg figcaption{max-width:var(--max);margin:0 auto;padding:9px 24px;font-size:12.5px;color:var(--mute)}
.heroband{height:230px;border-bottom:1px solid var(--line);
  background:
    linear-gradient(115deg,rgba(20,28,36,.90),rgba(47,67,86,.62) 46%,rgba(180,116,26,.30)),
    repeating-linear-gradient(90deg,#2f4356 0 2px,transparent 2px 74px),
    repeating-linear-gradient(0deg,#2f4356 0 2px,transparent 2px 74px),
    #24333f}

/* body */
main{padding:44px 0 8px}
/* Same wrap width as the header/hero (both are centred), then a left-aligned
   text column inside it. Capping main .wrap itself at 820 centred it inside the
   1080 grid and pushed every page's body ~130px right of its own headline. */
main .wrap{max-width:var(--max)}
main .wrap>*{max-width:820px}
main h2{margin:44px 0 14px;font-size:26px;line-height:1.25;letter-spacing:-.018em;font-weight:700}
main h2:first-child{margin-top:0}
main h3{margin:30px 0 8px;font-size:18.5px;line-height:1.35;font-weight:700;color:var(--slate)}
main p{margin:0 0 18px}
main ul,main ol{margin:0 0 20px;padding-left:22px}
main li{margin:0 0 9px}
.rule-list{list-style:none;padding-left:0}
.rule-list li{padding-left:18px;border-left:2px solid var(--line);margin-bottom:13px}
.steps{counter-reset:s;list-style:none;padding-left:0}
.steps li{counter-increment:s;position:relative;padding-left:38px;margin-bottom:13px}
.steps li::before{content:counter(s);position:absolute;left:0;top:1px;width:25px;height:25px;
  border-radius:50%;background:var(--wash);border:1px solid var(--line);color:var(--slate);
  font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* tables */
table.spec{width:100%;border-collapse:collapse;margin:8px 0 26px;font-size:15.5px}
table.spec caption{caption-side:top;text-align:left;font-size:12px;font-weight:700;
  letter-spacing:.11em;text-transform:uppercase;color:var(--mute);padding-bottom:9px}
table.spec th,table.spec td{text-align:left;padding:10px 13px;border-bottom:1px solid var(--line);
  vertical-align:top}
table.spec thead th{background:var(--wash);font-size:13px;letter-spacing:.03em;
  border-bottom:1px solid var(--line);color:var(--slate)}
table.spec tbody tr:last-child td{border-bottom:1px solid var(--line)}
.tablescroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* note */
.note{background:var(--wash);border-left:3px solid var(--amber);padding:18px 20px 2px;
  margin:28px 0;font-size:15.5px}
.note p{margin:0 0 16px}
.fineprint{font-size:14px;color:var(--mute)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(228px,1fr));gap:14px;margin:8px 0 30px}
.card{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);
  padding:18px 18px 6px;background:var(--paper);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--slate);transform:translateY(-2px)}
.card .card-k{font-size:11.5px;font-weight:700;letter-spacing:.15em;color:var(--amber)}
.card h3{margin:6px 0 7px;font-size:17px;color:var(--ink)}
.card p{font-size:14.5px;line-height:1.55;color:var(--steel)}

/* footer */
footer{border-top:1px solid var(--line);margin-top:56px;padding:34px 0 46px;background:var(--wash)}
footer .wrap{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--steel);text-decoration:none;font-size:14px}
footer a:hover{color:var(--amber)}
footer .cr{font-size:13px;color:var(--mute)}
footer .cr strong{color:var(--slate);font-weight:600}

@media (max-width:640px){
  .top{position:static}
  .top .wrap{min-height:0;padding-top:12px;padding-bottom:10px;gap:8px}
  nav.main a{font-size:14px}
  .brand small{display:none}
  nav.main{gap:16px}
  .hero .wrap{padding:36px 24px 32px}
  main{padding:32px 0 0}
  .heroband{height:150px}
}