/* CryptoGuides public editorial system. Keep selectors stable for publication QA. */
:root{
  color-scheme:light;
  --paper:#f4f7f4;
  --surface:#ffffff;
  --surface-soft:#e9efea;
  --ink:#142019;
  --muted:#556159;
  --rule:#cbd5cd;
  --rule-strong:#a9b8ad;
  --forest:#063c2c;
  --forest-deep:#03281e;
  --accent:#0fa971;
  --accent-deep:#08764f;
  --warning:#a44b35;
  --max:1180px;
  --reading:70ch;
  --gutter:clamp(16px,3vw,24px);
  --sans:Aptos,Calibri,"Segoe UI",system-ui,-apple-system,sans-serif;
  --serif:"Iowan Old Style",Charter,"Bitstream Charter",Georgia,serif;
  --ease-out:cubic-bezier(.23,1,.32,1);
  font-synthesis:none;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{display:block;max-width:100%}
a{color:inherit;text-decoration-thickness:from-font;text-underline-position:from-font;text-decoration-skip-ink:auto}
p{margin:0 0 1rem;text-wrap:pretty}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:0;text-wrap:balance}
h1{font-size:4.5rem;line-height:1.02}
h2{font-size:2.15rem;line-height:1.1}
h3{font-size:1.25rem;line-height:1.25}
button,a,[role="button"]{touch-action:manipulation}
button,.button,.nav-links a{user-select:none;-webkit-user-select:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
::selection{background:#b8f2db;color:var(--forest-deep)}

.skip-link{position:fixed;top:10px;left:12px;z-index:1000;padding:10px 14px;background:var(--surface);color:var(--ink);border:1px solid var(--ink);transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.wrap{width:min(var(--max),calc(100% - (var(--gutter) * 2)));margin-inline:auto}
.eyebrow,.article-kicker,.section-index,.publication-meta,.check-number,.paid-link-notice{font-family:var(--sans);font-size:.75rem;font-weight:700;line-height:1.2;letter-spacing:0;text-transform:uppercase}

/* Header and wayfinding */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);border-bottom:1px solid var(--rule);backdrop-filter:blur(16px) saturate(130%)}
.nav{min-height:76px;display:flex;align-items:center;gap:24px}
.wordmark{display:inline-flex;align-items:center;gap:11px;min-height:44px;color:var(--forest-deep);font-family:var(--serif);font-size:1.04rem;font-weight:700;text-decoration:none;white-space:nowrap}
.brand-name{line-height:1}
.brand-descriptor{padding-left:10px;border-left:1px solid var(--rule);color:var(--muted);font-family:var(--sans);font-size:.68rem;font-weight:700;line-height:1;text-transform:uppercase}
.brand-mark{position:relative;display:inline-block;width:22px;height:22px;flex:0 0 22px;background:var(--accent);border:1px solid var(--forest-deep)}
.brand-mark::after{content:"";position:absolute;right:-1px;bottom:-1px;width:8px;height:8px;background:var(--surface);border-top:1px solid var(--forest-deep);border-left:1px solid var(--forest-deep)}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:.88rem;font-weight:650}
.nav-links a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;border-bottom:2px solid transparent}
.age-note{padding-left:20px;border-left:1px solid var(--rule);color:var(--muted);font-size:.78rem;white-space:nowrap}
@media (hover:hover) and (pointer:fine){
  .nav-links a:hover{color:var(--accent-deep);border-color:var(--accent)}
}
@media (prefers-reduced-transparency:reduce){.site-header{background:var(--surface);backdrop-filter:none}}
@media (prefers-contrast:more){.site-header,.check-card,.cta-panel{border-color:var(--ink)}}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--forest-deep);color:#f8fffb;border-bottom:6px solid var(--accent)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);align-items:center;gap:64px;min-height:520px;padding-block:64px}
.hero-copy{max-width:650px}
.hero .eyebrow,.hero .article-kicker{margin:0 0 18px;color:#8fe1bd}
.hero h1{margin:0;color:#fff}
.page-home .hero h1{font-size:5.1rem}
.hero-statement{max-width:16ch;margin:16px 0 0;font-family:var(--serif);font-size:2rem;font-weight:600;line-height:1.08;color:#dff5e9;text-wrap:balance}
.hero-lede{max-width:62ch;margin:22px 0 0;color:#c9ddd2;font-size:1.05rem;line-height:1.7}
.hero-actions{display:flex;align-items:center;gap:12px;margin-top:28px;flex-wrap:wrap}
.hero-figure{position:relative;margin:0;border:1px solid rgba(255,255,255,.3);background:#071f18}
.hero-figure::before{content:"";position:absolute;inset:12px -12px -12px 12px;border:1px solid rgba(143,225,189,.35);pointer-events:none}
.hero-media{width:100%;height:390px;object-fit:cover;object-position:center;border:0}
.hero-figure figcaption{position:absolute;left:0;right:0;bottom:0;margin:0;padding:10px 14px;background:rgba(3,40,30,.9);color:#d8e9df;font-size:.72rem}
.article-hero .hero-grid{grid-template-columns:minmax(0,760px);min-height:440px;padding-block:64px}
.article-hero h1{font-size:3.75rem;max-width:18ch}
.article-hero .hero-lede{font-size:1.1rem}
.topic-withdrawal .hero{border-bottom-color:#20b481}
.topic-vip .hero{border-bottom-color:#d3a93e}
.topic-identity .hero{border-bottom-color:#4b79a8}
.topic-payment .hero{border-bottom-color:#9f5b45}
.topic-security .hero{border-bottom-color:#5578a5}
.topic-promotion .hero{border-bottom-color:#b76e3b}

/* Buttons and interaction */
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:2px;font-size:.9rem;font-weight:700;line-height:1.2;text-decoration:none;transition:transform 140ms var(--ease-out),background-color 140ms var(--ease-out),border-color 140ms var(--ease-out),color 140ms var(--ease-out)}
.button:active{transform:scale(.97)}
.button-primary{background:var(--accent);color:#022d20;border-color:var(--accent)}
.button-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
@media (hover:hover) and (pointer:fine){
  .button-primary:hover{background:#20c88a;border-color:#20c88a}
  .button-secondary:hover{background:rgba(255,255,255,.1);border-color:#fff}
}
.responsible-note{max-width:66ch;margin:26px 0 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.22);color:#bcd0c5;font-size:.82rem}
.responsible-note strong{color:#fff}

/* Editorial rhythm */
.main{padding:0 0 72px}
.intro-band{background:var(--surface);border-bottom:1px solid var(--rule)}
.intro-band .wrap{display:grid;grid-template-columns:160px minmax(0,var(--reading));gap:32px;padding-block:30px}
.intro-band .wrap::before{content:"Editorial standard";font-size:.75rem;font-weight:700;text-transform:uppercase;color:var(--accent-deep)}
.intro{margin:0;color:#35423a;font-family:var(--serif);font-size:1.14rem;line-height:1.55}
.section{padding:64px 0;border-bottom:1px solid var(--rule)}
.section-heading{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:40px;align-items:end;margin-bottom:32px}
.section-heading h2{margin:0}
.section-heading p{max-width:66ch;margin:0;color:var(--muted)}
.section-index{display:block;margin-bottom:12px;color:var(--accent-deep)}

.checks-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.check-card{position:relative;min-width:0;padding:24px;background:var(--surface);border:1px solid var(--rule);border-radius:2px}
.check-card::before{content:"";position:absolute;left:-1px;top:-1px;width:42px;height:4px;background:var(--accent)}
.check-number{display:block;margin-bottom:28px;color:var(--accent-deep);font-variant-numeric:tabular-nums}
.check-card h3{margin:0 0 10px}
.check-card p{margin:0;color:var(--muted);font-size:.94rem}
.check-card a{text-decoration-color:var(--accent);text-underline-offset:4px}

.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.topic-link{display:flex;min-height:168px;flex-direction:column;justify-content:space-between;padding:22px;background:var(--surface);border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);text-decoration:none}
.topic-link span{color:var(--accent-deep);font-size:.75rem;font-weight:700;text-transform:uppercase}
.topic-link strong{font-family:var(--serif);font-size:1.35rem;line-height:1.2}
.topic-link small{color:var(--muted);line-height:1.45}
@media (hover:hover) and (pointer:fine){.topic-link:hover{background:#e7f4ed}}

/* Checklists and article evidence */
.withdrawal-layout{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:56px;align-items:start}
.withdrawal-copy{position:sticky;top:112px}
.withdrawal-copy h2{margin:0 0 18px}
.withdrawal-copy p{max-width:56ch;color:var(--muted)}
.checklist{margin:0;padding:0;list-style:none;counter-reset:check}
.checklist li{position:relative;counter-increment:check;padding:17px 12px 17px 52px;border-top:1px solid var(--rule);background:transparent;overflow-wrap:break-word}
.checklist li:last-child{border-bottom:1px solid var(--rule)}
.checklist li::before{content:counter(check,decimal-leading-zero);position:absolute;left:0;top:17px;width:34px;color:var(--accent-deep);font-size:.76rem;font-weight:700;font-variant-numeric:tabular-nums}
.checklist li::after{content:"";position:absolute;left:34px;top:18px;bottom:18px;width:3px;background:var(--accent)}
.checklist li strong{display:block;margin-bottom:4px;font-family:var(--serif);font-size:1rem}
.checklist-code{font-family:ui-monospace,"Cascadia Code",monospace;font-size:.88rem}

.publication-meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin:0 0 20px;color:#92c9ae}
.publication-meta span{display:inline-flex;align-items:center;gap:7px}
.publication-meta span+span::before{content:"/";color:#517867}
.breadcrumb{display:flex;align-items:center;gap:9px;min-height:42px;overflow-x:auto;color:var(--muted);font-size:.78rem;white-space:nowrap}
.breadcrumb a{color:var(--accent-deep);text-underline-offset:3px}
.breadcrumb [aria-current="page"]{overflow:hidden;text-overflow:ellipsis}
.article-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.36fr);gap:48px;align-items:start}
.article-intro .intro{max-width:var(--reading)}
.evidence-note{padding:16px 18px;border-left:4px solid var(--accent);background:var(--surface);color:var(--muted);font-size:.88rem}
.material-connection{margin-top:24px;padding:14px 16px;border-left:4px solid var(--warning);background:#fff7f3;color:#5d3125!important;font-size:.88rem}
.reader-path{background:var(--surface-soft)}
.reader-path .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.6fr);gap:32px;align-items:end}
.reader-path h2{max-width:22ch;margin:0}
.reader-path nav{display:flex;flex-wrap:wrap;gap:10px 18px;justify-content:flex-end}
.reader-path nav a{min-height:36px;color:var(--forest);font-size:.9rem;font-weight:700;text-decoration-color:var(--accent);text-underline-offset:5px}
.related-reading{background:var(--surface-soft)}
.related-reading ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin:0;padding:0;list-style:none;background:var(--rule);border:1px solid var(--rule)}
.related-reading li{display:flex;min-height:112px;flex-direction:column;justify-content:space-between;padding:18px;background:var(--surface)}
.related-reading a{font-family:var(--serif);font-size:1.08rem;font-weight:700;line-height:1.25;text-decoration-color:var(--accent);text-underline-offset:4px}
.related-reading span{color:var(--muted);font-size:.78rem}

/* Eligibility and transparent commercial boundary */
.eligibility{background:var(--forest);color:#fff;border-bottom:0}
.eligibility .section-heading h2{color:#fff}
.eligibility .section-heading p{color:#c8ddd2}
.cta-panel{display:grid;grid-template-columns:minmax(0,.8fr) minmax(360px,1.2fr);gap:32px;padding:28px;background:var(--surface);color:var(--ink);border:1px solid #9fb5a7;border-radius:2px}
.disclosure-copy h3,.availability-copy h3{margin:0 0 10px}
.disclosure-copy p,.availability-copy p{margin:0;color:var(--muted)}
.eligibility-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 12px;align-items:end}
.eligibility-form label{grid-column:1/-1;font-size:.8rem;font-weight:700}
.eligibility-form select{width:100%;min-height:46px;padding:10px 36px 10px 12px;border:1px solid var(--rule-strong);border-radius:2px;background:#fff;color:var(--ink);font:inherit;font-size:1rem}
.eligibility-form select:focus{outline:3px solid var(--accent);outline-offset:2px}
.operator-action{display:flex;flex-direction:column;gap:4px}
.operator-link{min-width:150px}
.operator-link[aria-disabled="true"]{pointer-events:none;background:#d8dfda;color:#667169;border-color:#d8dfda}
.paid-link-notice{color:var(--warning);text-align:center}
.geo-message{grid-column:1/-1;margin:4px 0 0;color:var(--muted);font-size:.82rem}

/* Sources, FAQ, and compact research library */
.source-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:56px;align-items:start}
.source-layout h2{margin:0 0 16px}
.source-layout p{max-width:56ch;color:var(--muted)}
.source-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--rule)}
.source-list li{padding:15px 0;border-bottom:1px solid var(--rule)}
.source-list a{display:flex;justify-content:space-between;gap:18px;font-weight:700;text-decoration:none;overflow-wrap:anywhere}
.source-list a::after{content:"↗";flex:0 0 auto;color:var(--accent-deep)}
.source-list p{margin:8px 0 0;color:var(--muted);font-size:.88rem}
.faq details{border-top:1px solid var(--rule)}
.faq details:last-child{border-bottom:1px solid var(--rule)}
.faq summary{display:flex;align-items:center;justify-content:space-between;min-height:56px;cursor:pointer;font-family:var(--serif);font-weight:700;list-style:none}
.faq summary::after{content:"+";font-family:var(--sans);font-size:1.25rem;color:var(--accent-deep)}
.faq details[open] summary::after{content:"−"}
.faq summary::-webkit-details-marker{display:none}
.faq details p{max-width:var(--reading);padding:0 0 20px;color:var(--muted)}

.library-shell{margin-top:20px}
.library-intro{max-width:var(--reading);margin:0 0 18px;color:var(--muted)}
.library-featured{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.library-card{display:flex;min-height:220px;flex-direction:column;padding:22px;background:var(--surface);text-decoration:none}
.library-card .article-kicker{margin-bottom:auto;color:var(--accent-deep)}
.library-card h3{margin:28px 0 8px}
.library-card p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.55}
.library-angle{margin-top:16px;color:var(--accent-deep);font-size:.76rem;font-weight:700}
.library-index{margin-top:18px;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.library-index>summary{display:flex;min-height:58px;align-items:center;justify-content:space-between;cursor:pointer;font-weight:750;list-style:none}
.library-index>summary::after{content:"Open full index +";color:var(--accent-deep);font-size:.8rem}
.library-index[open]>summary::after{content:"Close index −"}
.library-index>summary::-webkit-details-marker{display:none}
.library-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;padding:24px 0 28px}
.library-groups>h3{grid-column:1/-1;margin:0 0 8px;font-family:var(--sans);font-size:.9rem}
.library-group{border-bottom:1px solid var(--rule)}
.library-group summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px;cursor:pointer;font-weight:750;list-style:none}
.library-group summary::-webkit-details-marker{display:none}
.library-group summary small{color:var(--muted);font-size:.76rem;font-variant-numeric:tabular-nums}
.library-group ol{margin:0;padding:0 0 12px;list-style:none}
.library-group li{border-top:1px solid var(--rule)}
.library-group a{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;padding:12px 0;text-decoration:none}
.library-group a span{overflow-wrap:anywhere}
.library-group a small{color:var(--muted);font-size:.76rem}
.editorial-method{background:var(--surface-soft)}

/* Footer */
.footer{padding:46px 0;background:#071f18;color:#d5e5dc}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
.footer strong{display:block;margin-bottom:8px;color:#fff;font-family:var(--serif);font-size:1.3rem}
.footer p{max-width:58ch;margin:0;color:#9fb5a8;font-size:.86rem}
.footer-links{display:flex;justify-content:flex-end;gap:10px 20px;flex-wrap:wrap}
.footer a{color:#d5e5dc;font-size:.82rem;text-decoration-color:#5b7d6b}

/* Responsive */
@media(max-width:1024px){
  .nav{display:grid;grid-template-columns:1fr auto;gap:0 20px;padding-top:10px}
  .nav-links{grid-column:1/-1;order:3;width:100%;margin:0;overflow-x:auto;gap:18px;border-top:1px solid var(--rule)}
  .age-note{padding-left:0;border-left:0}
  .hero-grid{grid-template-columns:minmax(0,1fr) minmax(300px,.72fr);gap:36px}
  .page-home .hero h1{font-size:4rem}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .library-featured{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:768px){
  h1{font-size:3rem}
  h2{font-size:1.8rem}
  .wrap{width:min(var(--max),calc(100% - 32px))}
  .nav{min-height:92px}
  .wordmark{font-size:.95rem}
  .age-note{font-size:.7rem}
  .hero-grid,.article-hero .hero-grid{grid-template-columns:1fr;min-height:auto;padding-block:48px}
  .page-home .hero h1{font-size:3.5rem}
  .hero-statement{font-size:1.65rem}
  .article-hero h1{font-size:3rem}
  .hero-figure{max-width:520px}
  .hero-media{height:300px}
  .intro-band .wrap,.section-heading,.article-intro,.reader-path .wrap{grid-template-columns:1fr;gap:12px}
  .section{padding:64px 0}
  .checks-grid{grid-template-columns:1fr}
  .withdrawal-layout,.source-layout,.cta-panel{grid-template-columns:1fr;gap:30px}
  .withdrawal-copy{position:static}
  .eligibility-form{grid-template-columns:1fr}
  .eligibility-form label,.geo-message{grid-column:1}
  .operator-action{align-items:flex-start}
  .library-featured{grid-template-columns:1fr}
  .library-card{min-height:180px}
  .related-reading ul{grid-template-columns:1fr}
  .reader-path nav{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
}

@media(max-width:520px){
  .wrap{width:min(var(--max),calc(100% - 24px))}
  .site-header{position:relative}
  .nav{grid-template-columns:1fr;padding-top:8px}
  .age-note{grid-row:2;margin-top:-4px}
  .nav-links{grid-row:3;grid-column:1;gap:14px;margin-top:8px}
  .nav-links a{font-size:.78rem;white-space:nowrap}
  .page-home .hero h1{font-size:3rem}
  .hero h1,.article-hero h1{font-size:2.55rem;overflow-wrap:break-word}
  .hero-statement{font-size:1.45rem}
  .hero-lede{font-size:1rem}
  .hero-actions{align-items:stretch;flex-direction:column}
  .button{width:100%}
  .hero-media{height:220px}
  .hero-figure::before{display:none}
  .responsible-note{font-size:.78rem}
  .topic-grid{grid-template-columns:1fr}
  .topic-link{min-height:138px}
  .check-card{padding:20px}
  .checklist li{padding-right:0}
  .library-groups{grid-template-columns:1fr}
  .library-index>summary::after{content:"Open +"}
  .library-index[open]>summary::after{content:"Close −"}
  .publication-meta{display:grid;gap:6px}
  .publication-meta span+span::before{display:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}