:root{--navy:#0B1F3A;--teal:#0E7C86;--teal-l:#D7EEF0;--amber:#F2A541;--amber-l:#FDEFD9;--slate:#5B6B7F;--slate-l:#E6EAF0;--ink:#1B2633}
*{box-sizing:border-box}
html{font-family:"Source Serif Pro","Source Serif 4",Georgia,serif;font-size:18px;line-height:1.65;color:var(--ink);background:#fff}
body{margin:0}
h1,h2,h3,.brand,.meta,nav,figcaption,table,.checklist,.callout,.ch-label,.kicker,footer,.offer{font-family:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.5rem;z-index:9}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
header.ebook-hero{background:var(--navy);color:#fff;padding:2.5rem 1.25rem 0;text-align:left}
header.ebook-hero > *{max-width:46rem;margin-left:auto;margin-right:auto}
header.ebook-hero .brand{font-weight:800;letter-spacing:.03em;margin:0 auto 1rem}
header.ebook-hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.05;margin:0 auto .6rem}
header.ebook-hero .sub{color:#D5E3EE;font-family:Inter,system-ui,sans-serif;font-size:1.1rem;margin-top:0}
header.ebook-hero .meta{color:#93C9CE;font-size:.85rem}
header.ebook-hero .meta a{color:var(--amber)}
header.ebook-hero img.hero{display:block;width:100%;max-width:56rem;height:auto;margin-top:1rem}
nav.toc,main{max-width:46rem;margin:0 auto;padding:0 1.25rem}
nav.toc{margin-top:2.5rem;border:1px solid var(--slate-l);border-radius:12px;padding:1rem 1.5rem}
nav.toc h2{font-size:1.1rem;margin:.3rem 0}
nav.toc ol{margin:0;padding-left:1.2rem;font-size:.95rem;line-height:1.7}
a{color:var(--teal)}
section{margin:3.5rem 0}
h2{font-size:1.9rem;line-height:1.2;color:var(--navy);margin:.2rem 0 1rem}
h3{font-size:1.25rem;color:var(--navy);margin:2rem 0 .5rem}
.ch-label{color:var(--teal);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;margin:0;border-top:4px solid var(--amber);padding-top:1rem}
.kicker{color:var(--slate);font-size:1.05rem;margin-top:-.4rem}
code{font-family:"JetBrains Mono","IBM Plex Mono",ui-monospace,monospace;font-size:.85em;background:#EEF2F6;padding:.05em .3em;border-radius:4px}
em.est{font-style:normal;font-family:Inter,system-ui,sans-serif;font-size:.72em;font-weight:600;color:#8A5A12;background:var(--amber-l);padding:.1em .5em;border-radius:1em;white-space:nowrap}
blockquote.pull{margin:2rem 0;padding:1rem 1.5rem;border-left:4px solid var(--amber);background:var(--amber-l);font-style:italic;font-size:1.25rem;color:var(--navy)}
blockquote.pull p{margin:0}
.callout{background:var(--teal-l);border-radius:10px;padding:1rem 1.4rem;margin:1.5rem 0;font-size:.92rem}
.callout h3{margin-top:0;font-size:1rem;color:var(--teal)}
.callout-pitfall{background:#FBEDEA;border-left:4px solid #C8553D}
figure{margin:2rem 0}
figure img{width:100%;height:auto;border-radius:10px}
figcaption{font-size:.82rem;color:var(--slate);margin-top:.5rem}
.fignum{font-weight:800;color:var(--teal);margin-right:.35em;text-transform:uppercase}
.tablefig,table{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.8rem;display:block}
th{background:var(--navy);color:#fff;text-align:left;padding:.5rem}
td{padding:.5rem;border-bottom:1px solid var(--slate-l);vertical-align:top}
caption{text-align:left;font-weight:700;color:var(--navy);padding-bottom:.4rem}
.checklist{border:1.5px solid #7FC4CA;border-radius:12px;padding:1rem 1.4rem;margin:2rem 0}
.cl-kicker{font-size:.7rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:#B9740F;margin:0}
.checklist h3{margin:.2rem 0}
.cl-sub{color:var(--slate);font-size:.85rem;margin:0 0 .5rem}
.checklist ul{list-style:none;padding:0;margin:0}
.checklist li{padding:.4rem 0 .4rem 1.8rem;position:relative;border-top:1px solid var(--slate-l);font-size:.9rem}
.checklist .box{position:absolute;left:0;top:.6rem;width:1rem;height:1rem;border:2px solid var(--teal);border-radius:3px}
ol.sources{font-size:.85rem}
ol.sources a{word-break:break-all}
section.offer{background:var(--navy);color:#D5E3EE;border-radius:16px;padding:2rem}
section.offer h2,section.offer strong{color:#fff}
.offer-points{padding-left:1.2rem}
.offer-cta{font-weight:700;color:#fff;font-size:1.15rem}
.link-tbd{color:var(--amber);font-family:"JetBrains Mono",monospace}
footer.site{max-width:46rem;margin:4rem auto 2rem;padding:1.5rem 1.25rem 0;border-top:1px solid var(--slate-l);font-size:.78rem;color:var(--slate)}
footer.site .colo-title{font-weight:800;color:var(--navy)}
footer.site .colo-ai{font-style:italic}
@media (prefers-color-scheme: dark){html{background:#0E1622;color:#E3E9F0}h2,h3,.checklist h3{color:#fff}nav.toc{border-color:#2A3647}.callout{background:#123238}.callout-pitfall{background:#3A1F1A}blockquote.pull{background:#2A2414;color:#FBE7C6}code{background:#1C2735;color:#D5E3EE}td{border-color:#2A3647}footer.site .colo-title{color:#fff}figure img{background:#fff}}

header.ebook-hero .brand img.logo{height:38px;width:auto;display:block}
footer.site .colo-logo img{height:30px;width:auto}
/*SITENAV*/header.penny-site{position:sticky;top:0;z-index:20;background:rgba(14,34,64,.97);border-bottom:1px solid rgba(255,255,255,.08);font-family:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;line-height:1.5}header.penny-site .bar{max-width:1160px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}header.penny-site .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#F7F5F0;font-weight:700;margin:0}header.penny-site .mark{border-radius:10px;display:block}header.penny-site .lockup{display:flex;flex-direction:column;line-height:1.15}header.penny-site .bname{font-size:17px}header.penny-site small{color:#9FB6C4;font-size:12px;font-weight:500}header.penny-site nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;max-width:none;margin:0;padding:0;background:none;border:0}header.penny-site nav a{color:#D5DEE6;text-decoration:none;font-weight:500;font-size:15px;padding:8px 12px;border-radius:8px}header.penny-site nav a:hover{color:#D0855E}.nav-toggle{display:none}.backbar{background:#EEF5F3;border-bottom:1px solid #BFE3E0;font-family:Inter,system-ui,sans-serif;font-size:15px}.backbar p{max-width:46rem;margin:0 auto;padding:.6rem 1.25rem}.backbar a{color:#0F4C55;font-weight:600;text-decoration:none}.backbar a:hover{text-decoration:underline}@media (max-width:860px){header.penny-site .bar{padding:8px 16px}header.penny-site small{display:none}header.penny-site.has-toggle .nav-toggle{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;padding:8px 12px;font:inherit;font-weight:600;cursor:pointer;min-height:44px}.nav-icon,.nav-icon::before,.nav-icon::after{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}.nav-icon::before,.nav-icon::after{content:"";position:absolute;left:0}.nav-icon::before{top:-6px}.nav-icon::after{top:6px}header.penny-site.nav-open .nav-icon{background:transparent}header.penny-site.nav-open .nav-icon::before{transform:translateY(6px) rotate(45deg)}header.penny-site.nav-open .nav-icon::after{transform:translateY(-6px) rotate(-45deg)}header.penny-site.has-toggle nav{display:none}header.penny-site.has-toggle.nav-open nav{display:flex;flex-direction:column;align-items:stretch;width:100%;border-top:1px solid rgba(255,255,255,.12);padding:8px 0 12px}header.penny-site.has-toggle.nav-open nav a{padding:12px 6px;font-size:17px}}header.penny-site .nav-dd{position:relative}header.penny-site .nav-dd summary{color:#D5DEE6;font-weight:500;font-size:15px;padding:8px 12px;cursor:pointer;list-style:none}header.penny-site .dd-panel{position:absolute;top:100%;left:0;background:#0E2240;border:1px solid rgba(255,255,255,.15);border-radius:10px;padding:6px;min-width:260px;z-index:30}header.penny-site .dd-panel a{display:block}header.penny-site .dd-panel small{display:block;color:#9FB6C4;font-size:12px}@media (max-width:860px){header.penny-site .dd-panel{position:static}}/*/SITENAV*/