/* AEO-REX 2026 design system. Tokens from the September 2026 design handoff.
   Shared chrome (header, footer) is global so every page, including the
   untouched articles, carries the same header and footer. Everything else is
   scoped to body.rx so the stylesheet is safe to load on legacy pages. */
:root{
  --ink:#1c2331;--ink-2:#26304a;--ink-border:#33405e;
  --text:#4a5568;--muted:#5f6a7a;--muted-dark:#aab6c8;--body-text:#2b3445;
  --bg:#f7f9fc;--card:#fff;--border:#e1e6ee;--alt:#f1f4f8;--alt-2:#eef1f5;
  --accent:#0a7593;--accent-graphic:#0e8fb3;--accent-bright:#2fc4ec;--tint:#e6f7fc;--tint-border:#9fd9ec;--tint-2:#bfeaf7;
  --chart-1:#c5d0de;--chart-2:#93a0b4;
  --display:'Bricolage Grotesque','Bricolage Grotesque Fallback',system-ui,sans-serif;
  --body:'DM Sans','DM Sans Fallback',system-ui,-apple-system,sans-serif;
  --mono:'DM Mono','DM Mono Fallback',ui-monospace,SFMono-Regular,Menlo,monospace;
  --gutter:clamp(20px,4vw,56px);
}

/* Metric-matched local fallbacks (capsize) so text does not reflow when the web fonts arrive */
@font-face{font-family:"DM Sans Fallback";src:local("Arial"),local("ArialMT");ascent-override:94.9001%;descent-override:29.6563%;line-gap-override:0%;size-adjust:104.531%;}
@font-face{font-family:"Bricolage Grotesque Fallback";src:local("Arial"),local("ArialMT");ascent-override:88.2116%;descent-override:25.6098%;line-gap-override:0%;size-adjust:105.4283%;}
@font-face{font-family:"DM Mono Fallback";src:local("Courier New"),local("CourierNewPSMT");ascent-override:99.2161%;descent-override:31.005%;size-adjust:99.9837%;}

@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes orbit{from{transform:rotate(0) translateX(150px) rotate(0)}to{transform:rotate(360deg) translateX(150px) rotate(-360deg)}}
@keyframes glow{0%,100%{opacity:.55}50%{opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}

/* Header */
.rx-hdr{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:12px var(--gutter);background:rgba(247,249,252,.88);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);font-family:var(--body);}
.rx-hdr a{text-decoration:none;}
.rx-brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.02em;color:var(--ink);}
.rx-brand img{width:40px;height:40px;border-radius:50%;display:block;}
.rx-brand span{color:var(--accent);}
.rx-nav{display:flex;gap:clamp(14px,2vw,28px);align-items:center;flex-wrap:wrap;font-size:14.5px;font-weight:500;}
body.rx .rx-brand,.rx-brand{color:var(--ink);}
body.rx .rx-nav a,.rx-nav a{color:var(--text);}
body.rx .rx-nav a:hover,.rx-nav a:hover{color:var(--accent);}
body.rx .rx-nav a[aria-current="page"],.rx-nav a[aria-current="page"]{color:var(--accent);font-weight:600;}
body.rx .rx-nav .rx-nav-strong,.rx-nav .rx-nav-strong{color:var(--ink);font-weight:600;}
body.rx .rx-nav .rx-btn,.rx-nav .rx-btn{background:var(--ink);color:#fff;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;}
body.rx .rx-nav .rx-btn:hover,.rx-nav .rx-btn:hover{background:var(--accent);color:#fff;}

/* Footer */
.rx-ftr{background:var(--ink);color:var(--muted-dark);padding:44px var(--gutter);font-size:13.5px;font-family:var(--body);line-height:1.6;}
.rx-ftr-in{max-width:1240px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;}
.rx-ftr-brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;color:#fff;font-size:18px;}
.rx-ftr-brand img{width:32px;height:32px;border-radius:50%;}
.rx-ftr-brand span{color:var(--accent-bright);}
.rx-ftr-links{display:flex;gap:22px;flex-wrap:wrap;}
body.rx .rx-ftr a,.rx-ftr a{color:var(--muted-dark);text-decoration:none;}
body.rx .rx-ftr a:hover,.rx-ftr a:hover{color:#fff;}

/* Page base (new pages only) */
body.rx{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);-webkit-font-smoothing:antialiased;}
body.rx a{color:var(--ink);text-decoration:none;}
body.rx a:hover{color:var(--accent);}
body.rx button{font-family:inherit;}
body.rx a:focus-visible,body.rx button:focus-visible,body.rx input:focus-visible,body.rx select:focus-visible,body.rx textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
body.rx h1,body.rx h2,body.rx h3{text-wrap:balance;}
body.rx p{text-wrap:pretty;}
body.rx img{max-width:100%;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}

/* Layout */
.sec{padding:clamp(64px,8vw,110px) var(--gutter);max-width:1240px;margin:0 auto;}
.sec.tight{padding-top:clamp(48px,6vw,80px);padding-bottom:clamp(48px,6vw,80px);}
.band{padding:clamp(64px,8vw,110px) var(--gutter);}
.band.tight{padding:clamp(48px,6vw,80px) var(--gutter);}
.band.white{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.band.dark{background:var(--ink);color:#e8eef6;}
.band.dark a{color:inherit;}
.in{max-width:1240px;margin:0 auto;}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(32px,5vw,80px);align-items:center;}
.grid2.top{align-items:start;}
.grid2.s{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:clamp(28px,5vw,72px);}
.split{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;}

/* Type */
.lbl{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);}
.lbl.sm{font-size:11px;letter-spacing:.12em;}
.lbl.cy{color:var(--accent-bright);}
.lbl.mu{color:var(--muted);}
.h1{font-family:var(--display);font-weight:600;font-size:clamp(42px,6.2vw,82px);line-height:.96;letter-spacing:-.045em;margin:18px 0 22px;}
.h2{font-family:var(--display);font-weight:600;font-size:clamp(32px,4vw,54px);letter-spacing:-.04em;line-height:1;margin:0;}
.h2.md{font-size:clamp(30px,3.8vw,50px);}
.h2.sm{font-size:clamp(28px,3.4vw,42px);line-height:1.02;}
.h2.xs{font-size:clamp(26px,3.2vw,40px);}
.h3{font-family:var(--display);font-weight:600;font-size:24px;letter-spacing:-.02em;line-height:1.15;margin:0;}
.h3.lg{font-size:clamp(24px,2.4vw,30px);letter-spacing:-.03em;line-height:1.1;}
.lead{font-size:clamp(17px,1.5vw,20px);line-height:1.5;color:var(--text);margin:0;}
.copy{font-size:16.5px;line-height:1.6;color:var(--body-text);margin:0;}
.p{font-size:14.5px;line-height:1.5;color:var(--text);margin:0;}
.small{font-size:13.5px;color:var(--muted);line-height:1.55;margin:0;}
.micro{font-size:12.5px;color:var(--muted);line-height:1.5;margin:0;}
.mono{font-family:var(--mono);}
.dark .lead,.dark .p,.band.dark .lead,.band.dark .p{color:var(--muted-dark);}

/* Links inside running text are underlined (WCAG 1.4.1) */
body.rx p a:not(.btn),body.rx .small a,body.rx .micro a,body.rx .p a,body.rx .copy a,body.rx .lead a,body.rx .stat-c a,body.rx .faq .a a,body.rx .step .d a,body.rx .story a,body.rx .art-body a,body.rx .terms a:not(.btn),body.rx li a{text-decoration:underline;text-underline-offset:2px;}

/* Buttons and chips */
.btn{display:inline-block;padding:15px 26px;border-radius:8px;font-weight:600;font-size:16px;text-align:center;line-height:1.2;transition:background .15s ease,color .15s ease,border-color .15s ease;}
.btn.ink{background:var(--ink);color:#fff;}.btn.ink:hover{background:var(--accent);color:#fff;}
.btn.teal{background:var(--accent);color:#fff;}.btn.teal:hover{background:var(--ink);color:#fff;}
.btn.cy,.band.dark .btn.cy,body.rx .btn.cy{background:var(--accent-bright);color:var(--ink);}.btn.cy:hover,.band.dark .btn.cy:hover,body.rx .btn.cy:hover{background:var(--accent);color:#fff;}
.btn.line{border:1.5px solid var(--ink);color:var(--ink);padding:14px 24px;}.btn.line:hover{background:var(--ink);color:#fff;}
.btn.line.lt{border-color:rgba(255,255,255,.35);color:#fff;}.btn.line.lt:hover{background:#fff;color:var(--ink);}
.btn.ghost,.band.dark .btn.ghost{border:1px solid var(--ink-border);color:#e8eef6;padding:12px 20px;font-size:15px;}.btn.ghost:hover{background:var(--ink-2);color:#fff;}
.btn.sm{padding:12px 20px;font-size:15px;}
.btn.xs{padding:11px 18px;font-size:14.5px;}
.btn.block{display:block;padding:14px;border-radius:10px;font-size:15px;}
.btn.txt{padding:14px 8px;color:var(--accent);background:none;}.btn.txt:hover{color:var(--ink);}
.pill{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);background:var(--tint);padding:6px 12px;border-radius:999px;}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-bright);animation:glow 1.6s infinite;}
.tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);background:var(--tint);padding:4px 8px;border-radius:999px;white-space:nowrap;}
.note{font-family:var(--mono);font-size:11.5px;color:var(--accent);background:var(--tint);padding:6px 10px;border-radius:6px;}
.tchips{display:flex;gap:8px;flex-wrap:wrap;}
.tchip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 12px;}
.tchip b{color:var(--accent);font-weight:700;}
.topic{font-family:var(--mono);font-size:12px;padding:7px 12px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer;}
.topic[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink);}

/* Cards and lists */
.card{background:#fff;border:1px solid var(--border);border-radius:20px;}
.card.md{border-radius:14px;}
.card.sm{border-radius:12px;}
.card.alt{background:var(--bg);}
.card.tint{background:var(--tint);border-color:var(--tint-border);}
.card.dk{background:var(--ink);color:#fff;border-color:var(--ink);}
.card.dk2{background:var(--ink-2);color:#e8eef6;border-color:var(--ink-border);}
.lift{transition:transform .18s ease,border-color .18s ease;}
.lift:hover{transform:translateY(-3px);border-color:var(--accent-bright);}
.tick{display:flex;gap:10px;font-size:14.5px;line-height:1.4;}
.tick b{color:var(--accent);font-weight:700;flex:none;}
.dk .tick b,.tint .tick b{color:var(--accent);}
.dk .tick b{color:var(--accent-bright);}
.faq{border-top:1.5px solid var(--ink);}
.faq>div{padding:16px 0;border-bottom:1px solid var(--border);}
.faq .q{font-weight:600;}
.faq .a{font-size:14.5px;color:var(--text);margin-top:4px;line-height:1.5;}
.steps{display:grid;border-top:1.5px solid var(--ink);}
.step{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);}
.step .n{font-family:var(--mono);font-size:13px;color:var(--accent);}
.step .t{font-weight:600;font-size:17px;}
.step .d{font-size:14.5px;color:var(--text);line-height:1.5;margin-top:4px;}
.rows{border-top:1.5px solid var(--ink);}
.row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr) auto;gap:clamp(12px,2vw,28px);padding:18px 0;border-bottom:1px solid var(--border);align-items:center;}
.row .k{font-family:var(--mono);font-size:12px;color:var(--muted);}
.row .v{font-weight:600;}
.row .v span{font-weight:400;color:var(--muted);}
.row .l{font-family:var(--mono);font-size:12.5px;color:var(--accent);white-space:nowrap;}
.row .s{font-family:var(--mono);font-size:12.5px;color:var(--muted);}
.stat-n{font-family:var(--display);font-weight:600;letter-spacing:-.05em;line-height:.9;}
.stat-c{font-size:14.5px;color:var(--text);margin-top:12px;max-width:26ch;line-height:1.45;}
.band.dark .stat-c{color:var(--muted-dark);}

/* Ticker */
.ticker{overflow:hidden;padding:14px 0;background:var(--ink);color:var(--accent-bright);}
.ticker>div{display:flex;gap:48px;width:max-content;animation:ticker 30s linear infinite;font-family:var(--mono);font-size:12px;letter-spacing:.08em;white-space:nowrap;}

/* Forms */
.formbox{display:flex;gap:8px;background:#fff;border:1px solid #d5dce6;border-radius:14px;padding:8px;flex-wrap:wrap;}
.formbox input{flex:1 1 200px;min-width:0;padding:14px 16px;border:0;font-size:16px;font-family:inherit;background:transparent;outline:none;color:var(--ink);}
.formbox button{padding:14px 22px;border-radius:10px;border:0;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;}
.field{display:block;width:100%;box-sizing:border-box;margin-top:6px;padding:12px 14px;border:1px solid #d5dce6;border-radius:10px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink);}
.label{font-size:13.5px;font-weight:600;}

/* Motion */
.rise{animation:rise .8s both;}
.rise.d0{animation-duration:.7s;}
.rise.d1{animation-delay:.1s;}
.rise.d2{animation-delay:.2s;}
.rise.d3{animation-delay:.3s;}
.rise.d4{animation-delay:.4s;}
.rise.d5{animation-delay:.45s;animation-duration:1s;}
.spin{animation:spin 40s linear infinite;}

@media (prefers-reduced-motion:reduce){
  .rx-hdr{-webkit-backdrop-filter:none;backdrop-filter:none;background:var(--bg);}
  .rise,.spin,.ticker>div,.pill .dot,.orbit{animation:none!important;}
  .lift:hover{transform:none;}
  body.rx *{transition-duration:0s!important;}
}

/* Consent banner injected by /js/consent-banner.js keeps its own colours */
body.rx .aeo-consent-banner-text a{color:#5fbba8;text-decoration:underline;}