:root{--ink:#1a2135;--muted:#4a5468;--bg:#fbf8f3;--card:#fff;--line:#e6e0d6;--navy:#1f2a44;--gold:#f4b860;--accent:#9a5b00;--radius:14px;--max:1080px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:5;background:rgba(251,248,243,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none}
.brand img{width:28px;height:28px}
nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
nav a{color:var(--muted);text-decoration:none;font-size:15px}
nav a:hover,nav a[aria-current="true"]{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
@media (max-width:720px){nav ul{gap:12px}nav li.opt{display:none}}
section{padding:72px 0;scroll-margin-top:60px}
section+section{border-top:1px solid var(--line)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.2rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3.4vw,2.1rem);letter-spacing:-.01em}
h3{font-size:1.2rem}
.lede{font-size:1.2rem;color:var(--muted);max-width:42em}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:13px;font-weight:700;color:var(--accent);margin:0 0 12px}
.hero{padding:88px 0 72px}
.thesis{display:inline-block;background:var(--navy);color:#fff;padding:6px 14px;border-radius:999px;font-weight:600;font-size:15px;margin-bottom:20px}
.btn{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;font-weight:600;padding:12px 22px;border-radius:10px;border:0;cursor:pointer}
.btn:hover{background:#2c3a5e}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card p.role{color:var(--muted);margin:0 0 12px}
.card ul{margin:0;padding-left:1.1em}
.card li{margin:.3em 0}
.tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);background:#fde9c7;border-radius:6px;padding:3px 8px;margin-bottom:10px}
.point h3{font-size:1.05rem}
.point p{margin:0;color:var(--muted)}
.diagram{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:28px 0}
.diagram svg{display:block;width:100%;height:auto}
ol.loop{counter-reset:s;list-style:none;padding:0;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
ol.loop li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 16px 16px 52px;position:relative}
ol.loop li::before{content:counter(s);position:absolute;left:14px;top:14px;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:14px;display:grid;place-items:center}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600}
details p{margin:.6em 0 0;color:var(--muted)}
.cta{background:var(--navy);color:#fff}
.cta .lede{color:#d9deea}
.cta .btn{background:var(--gold);color:var(--navy)}
.cta .btn:hover{background:#f7c983}
.cta .btn.ghost{background:transparent;color:#fff;border-color:#fff}
footer{padding:28px 0;color:var(--muted);font-size:14px}
.note{background:#fff7e8;border:1px solid #f1d7a8;border-radius:12px;padding:16px 18px}
ol.loop.three{margin-top:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.g2{grid-template-columns:1fr}
@media (min-width:700px){.g2{grid-template-columns:repeat(2,1fr)}}