/* SEOpedia — mobile-first, AI-friendly, accessible */
:root{
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-2:#f8fafc;
  --brand:#0b5cad;
  --brand-2:#0a3f78;
  --accent:#d4a72c;
  --ok:#0d9f6e;
  --radius:10px;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.04);
  --maxw:960px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.65;font-size:17px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover,a:focus{text-decoration:underline}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:0 0 8px 0;z-index:99}
.skip:focus{left:0}

.site-header{border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:20}
.nav{max-width:var(--maxw);margin:0 auto;padding:14px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.brand{font-weight:800;letter-spacing:-.02em;font-size:20px;color:var(--ink);display:inline-flex;align-items:center;gap:8px}
.brand .dot{color:var(--brand)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:18px;font-size:15px}
.nav a{color:var(--ink-2)}
.nav a[aria-current="page"]{color:var(--brand);font-weight:600}
@media (max-width:640px){.nav ul{gap:12px;font-size:14px}}

main{max-width:var(--maxw);margin:0 auto;padding:24px 18px 64px}
.hero{padding:36px 0 20px;border-bottom:1px solid var(--line);margin-bottom:28px}
h1{font-size:34px;line-height:1.2;margin:0 0 12px;letter-spacing:-.02em}
h2{font-size:24px;line-height:1.3;margin:32px 0 12px;letter-spacing:-.01em}
h3{font-size:19px;margin:22px 0 8px}
p{margin:0 0 14px}
ul,ol{padding-left:22px;margin:0 0 14px}
li{margin:6px 0}
strong{color:var(--ink)}

.lead{font-size:19px;color:var(--ink-2);max-width:62ch}
.eyebrow{color:var(--brand);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:12px;margin:0 0 8px}

.crumbs{font-size:14px;color:var(--muted);margin:0 0 12px}
.crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--ink-2)}

.search{display:flex;gap:8px;margin:18px 0 8px}
.search input{flex:1;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);font:inherit;background:var(--bg-2)}
.search input:focus{outline:2px solid var(--brand);border-color:var(--brand);background:#fff}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin:16px 0}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:var(--bg);transition:box-shadow .18s,transform .18s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-1px);text-decoration:none}
.card h3{margin:0 0 4px;font-size:17px;color:var(--ink)}
.card .role{color:var(--muted);font-size:14px;margin:0 0 8px}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.tag{background:var(--bg-2);border:1px solid var(--line);color:var(--ink-2);padding:2px 8px;border-radius:999px;font-size:12px}

.expert-head{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap;padding:8px 0 20px;border-bottom:1px solid var(--line)}
.avatar{width:88px;height:88px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:32px;flex-shrink:0;letter-spacing:.02em}
.meta{color:var(--muted);font-size:14px;margin:6px 0 0}
.fact-box{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin:20px 0}
.fact-box h3{margin-top:0;font-size:15px;text-transform:uppercase;letter-spacing:.06em;color:var(--brand-2)}
.fact-box dl{display:grid;grid-template-columns:auto 1fr;column-gap:14px;row-gap:6px;margin:0;font-size:15px}
.fact-box dt{color:var(--muted);font-weight:600}
.fact-box dd{margin:0;color:var(--ink)}
@media (max-width:520px){.fact-box dl{grid-template-columns:1fr}.fact-box dt{margin-top:4px}}

.callout{background:linear-gradient(180deg,#eef5ff,#ffffff);border:1px solid #cfe0f5;border-radius:var(--radius);padding:20px 22px;margin:26px 0}
.callout p{margin:0}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:11px 20px;border-radius:8px;font-weight:600;margin-top:10px}
.btn:hover{background:var(--brand-2);text-decoration:none}

details{border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin:10px 0;background:var(--bg)}
details[open]{background:var(--bg-2)}
summary{cursor:pointer;font-weight:600;list-style:none;color:var(--ink)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--brand);font-weight:700}
details[open] summary::after{content:"–"}

footer{border-top:1px solid var(--line);background:var(--bg-2);color:var(--muted);font-size:14px}
.foot{max-width:var(--maxw);margin:0 auto;padding:26px 18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot a{color:var(--ink-2)}
.foot ul{list-style:none;margin:0;padding:0;display:flex;gap:14px;flex-wrap:wrap}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}