:root{
  --paper:#F6F5EF; --paper2:#EFEEE5; --ink:#1C2522; --ink2:#41504B;
  --green:#14463C; --green-deep:#0B2B25; --green-soft:#E3EAE4;
  --gold:#A8842E; --gold-soft:#F3EAD3;
  --uk:#2E3F6E; --uk-soft:#E6E9F2;
  --rule:#D9D8CC; --rule2:#C7C6B8;
  --max:1120px; --maxr:760px;
  --serif:"Libre Caslon Text",Georgia,"Times New Roman",serif;
  --sans:"Public Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration-color:rgba(20,70,60,.35);text-underline-offset:3px}
a:hover{color:var(--green-deep)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--green);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.wrapr{max-width:var(--maxr);margin:0 auto;padding:0 20px}

/* progress bar */
#progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--gold);z-index:120}

/* header */
.site-head{position:sticky;top:0;z-index:100;background:rgba(246,245,239,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.site-head .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand svg{width:38px;height:38px;flex:0 0 auto}
.brand .wm{font-family:var(--serif);font-weight:700;font-size:1.32rem;letter-spacing:.01em;line-height:1}
.brand .wm b{color:var(--green);font-weight:700}
.brand .tg{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink2);margin-top:3px}
.nav{display:flex;align-items:center}
.nav>*{margin-left:26px}
.nav>*:first-child{margin-left:0}
.nav a{font-weight:600;font-size:.95rem;text-decoration:none;color:var(--ink2)}
.nav a:hover,.nav a[aria-current]{color:var(--green-deep)}
.nav .cta{background:var(--green);color:#fff;padding:9px 16px;border-radius:3px;border:1px solid var(--green-deep)}
.nav .cta:hover{background:var(--green-deep);color:#fff}
#navbtn{display:none;background:none;border:1px solid var(--rule2);border-radius:4px;padding:8px 10px;cursor:pointer;color:var(--ink)}
@media(max-width:840px){
  #navbtn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--rule);flex-direction:column;align-items:stretch;padding:10px 20px 18px;gap:4px;box-shadow:0 14px 28px rgba(20,40,35,.12)}
  .nav.open{display:flex}
  .nav>*{margin-left:0}
  .nav a{padding:11px 6px;border-bottom:1px solid var(--rule)}
  .nav a:last-child{border-bottom:0}
  .nav .cta{text-align:center;margin-top:8px;border-bottom:0}
}

/* certificate frame signature */
.cert{border:1px solid var(--green);outline:4px solid transparent;box-shadow:0 0 0 1px var(--green),inset 0 0 0 1px var(--green);position:relative;background:#fff}
.cert::before{content:"";position:absolute;inset:6px;border:1px solid rgba(20,70,60,.45);pointer-events:none}
.serial{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.serial.uk{color:var(--uk)}

/* hero */
.hero{padding:64px 0 56px;border-bottom:1px solid var(--rule);background:
  radial-gradient(1100px 420px at 85% -10%, rgba(20,70,60,.07), transparent 60%), var(--paper)}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(2.1rem,4.4vw,3.3rem);line-height:1.12;margin:14px 0 18px;letter-spacing:-.01em}
.hero h1 em{font-style:italic;color:var(--green)}
.hero p.sub{font-size:1.12rem;color:var(--ink2);max-width:54ch;margin:0 0 26px}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:.98rem;padding:13px 22px;border-radius:3px;border:1px solid var(--green-deep)}
.btn.primary{background:var(--green);color:#fff}
.btn.primary:hover{background:var(--green-deep)}
.btn.ghost{background:transparent;color:var(--green-deep)}
.btn.ghost:hover{background:var(--green-soft)}
.hero .art{padding:22px}
@media(max-width:840px){.hero{padding:44px 0 40px}.hero .grid{grid-template-columns:1fr;gap:30px}.hero .art{max-width:440px;margin:0 auto}}

/* sections */
section.band{padding:64px 0}
section.band.alt{background:var(--paper2);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
h2.sec{font-family:var(--serif);font-size:clamp(1.5rem,2.6vw,2.05rem);line-height:1.2;margin:0 0 12px}
p.secsub{color:var(--ink2);max-width:62ch;margin:0 0 34px}

/* guide cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:980px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cards{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--rule2);display:flex;flex-direction:column;text-decoration:none;color:var(--ink);transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(15,40,33,.12);color:var(--ink)}
.card .thumb{border-bottom:1px solid var(--rule)}
.card .pad{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-family:var(--serif);font-size:1.13rem;line-height:1.3;margin:2px 0 0}
.card p{margin:0;color:var(--ink2);font-size:.92rem;line-height:1.55}
.card .meta{margin-top:auto;padding-top:10px;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink2)}
.card:hover h3{color:var(--green-deep)}

/* trust band */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:840px){.trio{grid-template-columns:1fr}}
.trio .item{background:#fff;border:1px solid var(--rule2);padding:24px}
.trio .item svg{width:46px;height:46px;margin-bottom:14px}
.trio h3{font-family:var(--serif);font-size:1.12rem;margin:0 0 8px}
.trio p{margin:0;color:var(--ink2);font-size:.94rem}

/* article */
.art-hero{padding:52px 0 40px;border-bottom:1px solid var(--rule);background:var(--paper)}
.crumbs{font-size:.84rem;color:var(--ink2);margin-bottom:18px}
.crumbs a{color:var(--ink2)}
.crumbs span{color:var(--rule2);padding:0 6px}
h1.art-title{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,4vw,2.7rem);line-height:1.16;margin:12px 0 16px;letter-spacing:-.01em;max-width:24ch}
.art-meta{display:flex;flex-wrap:wrap;gap:4px 0;color:var(--ink2);font-size:.88rem;margin-bottom:8px}
.art-meta .sep::before{content:"·";margin:0 11px;color:var(--rule2);font-weight:400}
.art-meta b{color:var(--ink)}
.cover{margin:34px 0 0}
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;padding:48px 0 30px;max-width:var(--max);margin:0 auto;padding-left:20px;padding-right:20px}
@media(max-width:980px){.layout{grid-template-columns:1fr;gap:8px;padding-top:34px}}
.toc{position:sticky;top:92px;align-self:start;border-left:2px solid var(--rule2);padding-left:18px}
.toc h2{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink2);margin:0 0 12px}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{margin:0 0 9px}
.toc a{display:block;font-size:.86rem;line-height:1.4;color:var(--ink2);text-decoration:none}
.toc a:hover{color:var(--green-deep)}
@media(max-width:980px){.toc{position:static;border:1px solid var(--rule2);background:#fff;padding:18px 20px;margin-bottom:26px}}
.prose{min-width:0}
.prose p{margin:0 0 1.25em}
.prose p.lede{font-size:1.16rem;line-height:1.6;color:var(--ink)}
.prose h2{font-family:var(--serif);font-size:1.62rem;line-height:1.25;margin:2.1em 0 .6em;letter-spacing:-.005em}
.prose h3{font-family:var(--serif);font-size:1.18rem;margin:1.7em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.3em}
.prose li{margin:0 0 .5em}
.prose strong{color:var(--green-deep)}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.92rem;background:#fff;border:1px solid var(--rule2)}
.prose th{background:var(--green);color:#fff;text-align:left;padding:10px 12px;font-weight:700;font-size:.86rem}
.prose td{padding:10px 12px;border-top:1px solid var(--rule);vertical-align:top}
.prose tr:nth-child(even) td{background:var(--paper)}
.tablewrap{overflow-x:auto;margin:1.6em 0}
.tablewrap table{margin:0;min-width:540px}
.callout{border:1px solid var(--rule2);border-left:4px solid var(--gold);background:#fff;padding:16px 20px;margin:1.6em 0;font-size:.96rem}
.callout.warn{border-left-color:#A1452F;background:#FBF4F0}
.callout.tip{border-left-color:var(--green)}
.callout p:last-child{margin-bottom:0}
.example{background:var(--green-soft);border:1px solid #BFD0C4;padding:22px 24px;margin:1.8em 0}
.example h3{margin-top:0!important;font-family:var(--serif)}
.example .ex-k{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--green-deep);display:block;margin-bottom:6px}
figure.ill{margin:2em 0;background:#fff;border:1px solid var(--rule2);padding:18px}
figure.ill figcaption{font-size:.84rem;color:var(--ink2);padding-top:12px;border-top:1px dashed var(--rule);margin-top:14px;font-style:italic}
.takeaways{background:#fff;margin:2.2em 0;padding:26px 28px 20px}
.takeaways h2{margin-top:0!important}
.takeaways ul{margin-bottom:0}
.faq{margin-top:1em}
.faq details{background:#fff;border:1px solid var(--rule2);margin:0 0 10px}
.faq summary{cursor:pointer;font-weight:700;padding:15px 18px;list-style:none;display:flex;justify-content:space-between;gap:14px}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--gold);font-size:1.1rem}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 18px 16px;color:var(--ink2);font-size:.96rem}
.disc-inline{font-size:.83rem;color:var(--ink2);border-top:1px dashed var(--rule2);margin-top:2.6em;padding-top:1.1em}
.author{display:flex;gap:14px;align-items:center;border:1px solid var(--rule2);background:#fff;padding:16px 18px;margin:2em 0 0}
.author svg{width:44px;height:44px;flex:0 0 auto}
.author p{margin:0;font-size:.88rem;color:var(--ink2)}
.author b{color:var(--ink)}
.related{padding:54px 0 70px}
.related h2{font-family:var(--serif);font-size:1.5rem;margin:0 0 22px}

/* book / affiliate */
.bookbox{border:1px solid var(--rule2);background:#fff;margin:2.2em 0;padding:20px 22px}
.bookbox .bk{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);display:block;margin-bottom:8px}
.bookbox h3{margin:.1em 0 .4em!important}
.bookbox p{font-size:.94rem;color:var(--ink2)}
.bookbox .disc{font-size:.78rem;color:var(--ink2);margin-top:10px;font-style:italic}
.books{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}
@media(max-width:980px){.books{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.books{grid-template-columns:1fr}}
.book{background:#fff;border:1px solid var(--rule2);padding:22px;display:flex;flex-direction:column}
.book .spine{height:6px;background:var(--green);margin:-22px -22px 16px}
.book.uk .spine{background:var(--uk)}
.book.gen .spine{background:var(--gold)}
.book h3{font-family:var(--serif);font-size:1.08rem;margin:0 0 4px}
.book .au{font-size:.85rem;color:var(--ink2);margin:0 0 10px;font-style:italic}
.book p{font-size:.91rem;color:var(--ink2);margin:0 0 16px}
.book a.buy{margin-top:auto;align-self:flex-start;font-weight:700;font-size:.9rem;text-decoration:none;border:1px solid var(--green-deep);color:var(--green-deep);padding:9px 16px;border-radius:3px}
.book a.buy:hover{background:var(--green);color:#fff}

/* legal pages */
.legal{padding:54px 0 80px}
.legal h1{font-family:var(--serif);font-size:2.1rem;margin:8px 0 6px}
.legal .upd{font-family:var(--mono);font-size:.78rem;color:var(--ink2);margin-bottom:30px}
.legal h2{font-family:var(--serif);font-size:1.35rem;margin:2em 0 .5em}
.legal p,.legal li{color:var(--ink2)}

/* footer */
.foot{background:var(--green-deep);color:#CFE0D6;margin-top:70px}
.foot a{color:#E9F2EC;text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot .top{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding:54px 0 40px}
@media(max-width:900px){.foot .top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot .top{grid-template-columns:1fr}}
.foot h3{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:#9FBCAD;margin:0 0 14px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:0 0 9px;font-size:.92rem}
.foot .blurb{font-size:.9rem;line-height:1.6;max-width:34ch}
.foot .legalrow{border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;font-size:.8rem;color:#9FBCAD}
.foot .legalrow p{margin:0 0 8px}
.fbrand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.fbrand .wm{font-family:var(--serif);font-weight:700;font-size:1.2rem;color:#fff}

/* scroll top */
#totop{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:3px;border:1px solid var(--green-deep);background:var(--green);color:#fff;cursor:pointer;display:none;align-items:center;justify-content:center;z-index:110;box-shadow:0 8px 20px rgba(10,35,28,.3)}
#totop.show{display:flex}
#totop:hover{background:var(--green-deep)}

/* misc */
.hub-h{padding:56px 0 8px}
.hub-h h1{font-family:var(--serif);font-size:clamp(1.9rem,3.6vw,2.6rem);margin:10px 0 12px}
.hub-h p{color:var(--ink2);max-width:64ch}
.pill{display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;padding:4px 9px;border:1px solid currentColor;border-radius:2px}
.pill.us{color:var(--green)}
.pill.uk{color:var(--uk)}
.notice{background:var(--gold-soft);border:1px solid #DECB9A;padding:14px 18px;font-size:.9rem;margin:26px 0}