/* self-hosted, subset to Latin — no third-party font requests */
@font-face{font-family:'Archivo';src:url('/fonts/Archivo-Regular.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Archivo';src:url('/fonts/Archivo-Medium.woff2') format('woff2');
  font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Archivo';src:url('/fonts/Archivo-SemiBold.woff2') format('woff2');
  font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Archivo';src:url('/fonts/Archivo-Bold.woff2') format('woff2');
  font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/IBMPlexMono-Regular.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('/fonts/IBMPlexMono-Medium.woff2') format('woff2');
  font-weight:500;font-style:normal;font-display:swap}

/* AE Index — shared stylesheet */
:root{
  --paper:#E6E9E6; --paper2:#DCE0DD; --paper-2:#DCE0DD;
  --card:#F0F2F0;
  --ink:#12171A; --ink2:#525C60; --ink-2:#525C60;
  --ink3:#7C8589; --ink-3:#7C8589;
  --rule:#C2C8C5; --blue:#1F4A6B; --blue-2:#2F6890;
  --soft:rgba(31,74,107,.07); --blue-soft:rgba(31,74,107,.07);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0}
.ae{background:var(--paper);color:var(--ink);font-family:'Archivo',system-ui,sans-serif;
  font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
.mono,.lbl{font-family:'IBM Plex Mono',ui-monospace,monospace}
.lbl{font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink3)}
.wrap{max-width:920px;margin:0 auto;padding:28px 20px 70px}

/* masthead + nav */
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  padding-bottom:14px;border-bottom:1.5px solid var(--ink);position:relative}
.head::after{content:'';position:absolute;left:0;bottom:-1.5px;width:54px;height:3.5px;background:var(--blue)}
.head a{text-decoration:none;color:inherit}
.mark{font-weight:700;font-size:23px;letter-spacing:.01em;line-height:1}
.nav{display:flex;gap:20px;flex-wrap:wrap;margin-top:12px}
.nav a{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink2);text-decoration:none;
  border-bottom:1px solid var(--rule);padding-bottom:2px}
.nav a:hover,.nav a[aria-current]{color:var(--blue);border-color:var(--blue)}

/* type */
h1{font-size:40px;font-weight:600;letter-spacing:-.03em;line-height:1.08;margin:30px 0 14px}
h2{font-size:13px;font-weight:600;letter-spacing:.02em;margin:46px 0 14px;
  padding-bottom:8px;border-bottom:1.5px solid var(--ink)}
h3{font-size:17px;font-weight:600;margin:0 0 5px;letter-spacing:-.01em}
p{margin:0 0 15px;max-width:70ch}
a{color:var(--blue)}
.lede{font-size:18.5px;color:var(--ink2);max-width:62ch;line-height:1.55}

/* cost bands */
.bands{display:grid;grid-template-columns:repeat(3,1fr);border:1.5px solid var(--ink);background:var(--card)}
.band{padding:22px 20px;border-right:1.5px solid var(--ink)}
.band:last-child{border-right:none}
.band .n{font-family:'IBM Plex Mono',monospace;font-size:26px;font-weight:500;
  letter-spacing:-.03em;color:var(--blue);margin:8px 0 6px;line-height:1.1}
.band p{font-size:13.5px;color:var(--ink2);margin:0}

/* drivers */
.drivers{display:grid;grid-template-columns:1fr 1fr;gap:26px 34px}
.drv{border-left:2.5px solid var(--blue);padding-left:16px}
.drv p{font-size:14.5px;color:var(--ink2);margin:0}

/* cta */
.cta{border:1.5px solid var(--ink);background:var(--card);padding:28px 26px;margin:34px 0 0}
.cta h3{font-size:23px;letter-spacing:-.02em;margin-bottom:8px}
.opts{display:grid;gap:8px;margin:18px 0 0;max-width:460px}
.opt{display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:left;
  width:100%;cursor:pointer;background:var(--paper);border:1.5px solid var(--rule);
  padding:13px 15px;font:inherit;color:var(--ink);text-decoration:none;
  transition:border-color .14s,background .14s}
.opt:hover{border-color:var(--blue);background:var(--soft)}
.opt:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.opt .ar{font-family:'IBM Plex Mono',monospace;color:var(--ink3)}

/* tables */
table{width:100%;border-collapse:collapse;font-size:14.5px}
th{text-align:left;font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink3);font-weight:500;padding:0 0 9px;border-bottom:1.5px solid var(--ink)}
td{padding:12px 0;border-bottom:1px dotted var(--rule);vertical-align:top}
td.n,th.n{text-align:right}
td.n{font-family:'IBM Plex Mono',monospace;font-weight:500;white-space:nowrap}

/* faq */
.faq{border-bottom:1px solid var(--rule);padding:16px 0}
.faq summary{cursor:pointer;font-weight:500;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:'+';font-family:'IBM Plex Mono',monospace;color:var(--blue);
  margin-right:11px;font-weight:500}
.faq[open] summary::before{content:'\2013'}
.faq p{font-size:14.5px;color:var(--ink2);margin:12px 0 0 25px}

/* verification checks */
.checks{border-left:2.5px solid var(--blue);padding-left:18px;margin:16px 0 18px}
.checks ul{margin:0;padding:0;list-style:none}
.checks li{position:relative;padding-left:21px;margin-bottom:8px;font-size:14.5px;
  color:var(--ink2);line-height:1.55}
.checks li::before{content:'\2713';position:absolute;left:0;color:var(--blue);
  font-family:'IBM Plex Mono',monospace;font-size:12px}

/* misc */
.note{border:1px dashed var(--rule);padding:16px 18px;background:var(--paper2);
  font-size:14px;color:var(--ink2);margin-top:26px}
.foot{margin-top:44px;padding-top:20px;border-top:1.5px solid var(--ink);
  font-size:12px;color:var(--ink3);line-height:1.65}
.foot .nav{margin-bottom:14px}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.three p{font-size:14.5px;color:var(--ink2);margin:0}
.hero{border:1.5px solid var(--ink);background:var(--card);padding:36px 34px 34px;margin-top:28px}
.hero h1{margin:6px 0 12px;font-size:44px}
.hero .lede{max-width:54ch}
.subs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.subs a{padding:20px;border:1.5px solid var(--ink);text-decoration:none;color:var(--ink);
  background:var(--card);transition:background .14s,border-color .14s}
.subs a:hover{background:var(--soft);border-color:var(--blue)}
.subs .n{font-family:'IBM Plex Mono',monospace;font-size:20px;color:var(--blue);
  margin:6px 0 4px;letter-spacing:-.02em}
.subs p{font-size:13px;color:var(--ink2);margin:0}

@media (max-width:760px){
  h1{font-size:29px}.hero h1{font-size:30px}.lede{font-size:16.5px}
  .bands,.subs,.three{grid-template-columns:1fr}
  .band{border-right:none;border-bottom:1.5px solid var(--ink)}
  .band:last-child{border-bottom:none}
  .drivers{grid-template-columns:1fr;gap:22px}
  .three{gap:22px}
  .hero{padding:24px 20px}
  .wrap{padding:22px 18px 50px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* breadcrumbs */
.crumb{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink3);margin-bottom:16px}
.crumb a{color:var(--ink2);text-decoration:none;border-bottom:1px solid var(--rule)}
.crumb a:hover{color:var(--blue);border-color:var(--blue)}
.crumb span{color:var(--rule);margin:0 2px}
.crumb span[aria-current]{color:var(--ink);margin:0}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);
  padding:12px 18px;z-index:60;font-weight:500}
.skip:focus{left:0}

/* ---------- sticky bar ---------- */
.sticky{position:fixed;top:0;left:0;right:0;z-index:50;background:var(--paper);
  border-bottom:1.5px solid var(--ink);transform:translateY(-102%);
  transition:transform .22s cubic-bezier(.2,.7,.3,1)}
.sticky.on{transform:none}
.sticky-in{max-width:920px;margin:0 auto;padding:10px 20px;display:flex;
  align-items:center;justify-content:space-between;gap:16px}
.sticky-mark{font-weight:700;font-size:16px;letter-spacing:.01em;text-decoration:none;color:var(--ink)}
.sticky-cta{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;text-decoration:none;color:var(--paper);background:var(--ink);
  padding:9px 15px;white-space:nowrap;transition:background .14s}
.sticky-cta:hover{background:var(--blue)}

/* ---------- scrollable tables ---------- */
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch;position:relative}
.tscroll table{min-width:520px}
.tscroll.more::after{content:'';position:absolute;top:0;right:0;bottom:0;width:38px;
  pointer-events:none;background:linear-gradient(to right,rgba(230,233,230,0),var(--paper))}

/* ---------- heading anchors ---------- */
.wrap h2{position:relative}
.anch{position:absolute;left:-22px;top:0;color:var(--rule);text-decoration:none;
  opacity:0;transition:opacity .14s;font-weight:400}
.wrap h2:hover .anch,.anch:focus{opacity:1;color:var(--blue)}

/* ---------- focus visibility ---------- */
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--blue);outline-offset:3px}

/* ---------- print ---------- */
@media print{
  .nav,.sticky,.crumb,.cta,.opts,.checks,.anch,.skip{display:none!important}
  .ae{background:#fff}
  .wrap{max-width:none;padding:0}
  h1{font-size:26pt}h2{font-size:11pt;margin-top:20pt}
  body{font-size:10.5pt}
  .bands,.subs{grid-template-columns:1fr 1fr}
  .tscroll table{min-width:0}
  a{color:#000;text-decoration:none}
  .foot{font-size:8pt}
}

@media (max-width:760px){
  .anch{display:none}
  .sticky-in{padding:9px 16px}
  .sticky-cta{font-size:10px;padding:8px 12px}
}