/* Styles for the Pensovo blog — /blog/ and every article under it.
   Same tokens and type stack as index.html and legal.css; keep the three in step.
   Layout: sticky nav → two-column article hero → body with a sticky "In this article"
   rail → FAQ accordions → author → dark CTA band → related cards → four-column footer. */

:root{
  --teal:#0E8F72;
  --teal-deep:#0A6F58;
  --teal-lift:#3FBF9B;
  --tint:#DCF0E9;
  --tint-soft:#EAF5F0;
  --amber:#B8681B;
  --paper:#F4F6F2;
  --paper-2:#FBFCFA;
  --ink:#0F241D;
  --ink-soft:#46574F;
  --rule:#D9DFD8;
  --shelf:#1A3129;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --measure:68ch;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.66;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--teal-deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--teal)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.12;letter-spacing:-.015em;margin:0}
h1{font-size:clamp(2.2rem,4.6vw,3.4rem);font-variation-settings:"opsz" 96}
h2{font-size:clamp(1.5rem,3vw,1.95rem);font-variation-settings:"opsz" 48}
h3{font-size:1.16rem;font-variation-settings:"opsz" 26;margin:30px 0 8px}
p,ul,ol{margin:0 0 18px}
ul,ol{padding-left:23px}
li{margin-bottom:8px}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--tint-soft);padding:1px 6px;border-radius:5px}
:focus-visible{outline:2.5px solid var(--teal);outline-offset:3px;border-radius:4px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 22px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--sans);font-size:1rem;font-weight:600;
  padding:14px 24px;border-radius:999px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-deep);color:#fff}
.btn-quiet{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn-quiet:hover{border-color:var(--ink);background:rgba(15,36,29,.04)}

/* ---------- reading progress ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--teal);z-index:60;transition:width .12s linear}

/* ---------- nav ---------- */
header.nav{position:sticky;top:0;z-index:50;background:rgba(244,246,242,.88);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
header.nav.scrolled{border-bottom-color:var(--rule)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 22px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.32rem;font-weight:600;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.brand svg{flex:none}
.nav-links{display:none;gap:30px;font-size:.96rem}
.nav-links a{color:var(--ink-soft);text-decoration:none}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--teal)}
.nav-cta{font-size:.95rem;padding:11px 20px}

/* ---------- article hero ---------- */
.hero-art{padding:34px 0 10px}
.hero-grid{display:grid;gap:28px;align-items:center}
.crumbs{font-size:.86rem;color:var(--ink-soft);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:var(--ink-soft);text-decoration:none}
.crumbs a:hover{color:var(--teal)}
.crumbs span{color:var(--rule)}
.kicker{display:inline-flex;align-items:center;gap:8px;background:var(--tint);color:var(--teal-deep);font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:6px 12px 6px 10px;border-radius:999px;margin-bottom:16px}
.kicker:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
.hero-art h1{max-width:16ch;margin-bottom:16px}
.standfirst{font-size:1.16rem;line-height:1.55;color:var(--ink-soft);max-width:34em;margin:0 0 22px}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;font-size:.9rem;color:var(--ink-soft)}
.byline .av{width:34px;height:34px;border-radius:50%;background:var(--teal);object-fit:cover;display:inline-block;flex:none}
.byline b{color:var(--ink);font-weight:600}
.byline .sep{color:var(--rule)}
.byline time{color:var(--ink-soft)}
.hero-media{position:relative}
.hero-media:before{content:"";position:absolute;inset:-8% -6%;z-index:0;pointer-events:none;border-radius:40px;
  background:radial-gradient(55% 45% at 60% 40%, rgba(220,240,233,.95), rgba(220,240,233,0) 100%)}
.hero-media img,.hero-media svg{position:relative;z-index:1;width:100%;border-radius:18px;border:1px solid var(--rule);background:var(--paper-2);box-shadow:0 30px 60px -36px rgba(15,36,29,.45)}
.hero-media figcaption{position:relative;z-index:1;font-size:.84rem;color:var(--ink-soft);margin-top:10px}

/* ---------- layout: rail + body ---------- */
.layout{display:grid;gap:40px;padding-top:28px}
.rail{display:none}
.toc{position:sticky;top:92px}
.toc h4{font-family:var(--sans);font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 12px}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--rule)}
.toc li{margin:0}
.toc a{display:block;padding:7px 0 7px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--ink-soft);text-decoration:none;font-size:.9rem;line-height:1.4}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--teal-deep);border-left-color:var(--teal);font-weight:600}
.rail-cta{margin-top:26px;background:var(--paper-2);border:1px solid var(--rule);border-radius:16px;padding:16px}
.rail-cta .mark{width:40px;height:40px;border-radius:11px;background:var(--teal);display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.rail-cta b{display:block;font-family:var(--serif);font-size:1.05rem;font-weight:500;margin-bottom:4px}
.rail-cta p{font-size:.86rem;color:var(--ink-soft);margin:0 0 12px}
.rail-cta .btn{width:100%;padding:10px 16px;font-size:.9rem;color:#fff}
.rail-cta .btn:hover{color:#fff}
.toc-mobile{border:1px solid var(--rule);border-radius:14px;background:var(--paper-2);padding:4px 16px;margin-bottom:26px}
.toc-mobile summary{cursor:pointer;font-weight:600;font-size:.95rem;padding:10px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary:after{content:"+";font-size:1.3rem;color:var(--teal);line-height:1}
.toc-mobile[open] summary:after{content:"–"}
.toc-mobile ol{margin:0 0 12px;padding-left:20px;font-size:.93rem}
.toc-mobile a{text-decoration:none;color:var(--ink-soft)}

.body{min-width:0;max-width:var(--measure)}

/* ---------- the short answer ---------- */
.answer{background:var(--tint-soft);border:1px solid var(--tint);border-left:4px solid var(--teal);border-radius:16px;padding:22px 24px 20px;margin:0 0 32px}
.answer h2{font-family:var(--sans);font-size:.76rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--teal-deep);margin:0 0 12px;padding:0;border:0}
.answer h2:before{display:none}
.answer p{font-size:1.06rem;line-height:1.6}
.answer p:last-child,.answer ul:last-child{margin-bottom:0}
.answer ul{padding-left:0;list-style:none;margin-top:14px;display:grid;gap:9px}
.answer li{position:relative;padding-left:26px;color:var(--ink-soft);margin:0}
.answer li:before{content:"";position:absolute;left:0;top:.5em;width:14px;height:14px;border-radius:50%;background:var(--teal);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'><circle cx='7' cy='7' r='7' fill='black'/><path d='M4 7.2l2 2 4-4.4' stroke='white' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'><circle cx='7' cy='7' r='7' fill='black'/><path d='M4 7.2l2 2 4-4.4' stroke='white' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat}
.answer li b,.answer p b{color:var(--ink);font-weight:600}

/* ---------- body typography ---------- */
.post h2{margin:52px 0 16px;padding-top:22px;border-top:1px solid var(--rule);position:relative}
.post h2:before{content:"";position:absolute;top:-1px;left:0;width:44px;height:3px;background:var(--teal);border-radius:2px}
.post h2:first-child{margin-top:0}
.post h3{color:var(--ink)}
.post p,.post li{color:var(--ink);}
.post li strong,.post p strong{font-weight:600}
.post ol{counter-reset:item;list-style:none;padding-left:0}
.post ol>li{counter-increment:item;position:relative;padding-left:40px;margin-bottom:12px}
.post ol>li:before{content:counter(item);position:absolute;left:0;top:.05em;width:26px;height:26px;border-radius:50%;background:var(--tint);color:var(--teal-deep);font-size:.82rem;font-weight:700;display:flex;align-items:center;justify-content:center}
.post ul{padding-left:0;list-style:none}
.post ul>li{position:relative;padding-left:22px}
.post ul>li:before{content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--teal)}
.post ul>li>ul{margin-top:8px}
blockquote,.pull{margin:30px 0;padding:6px 0 6px 22px;border-left:3px solid var(--amber);font-family:var(--serif);font-size:1.28rem;line-height:1.4;font-variation-settings:"opsz" 40;color:var(--ink)}
blockquote p{margin:0}
blockquote cite{display:block;font-family:var(--sans);font-size:.86rem;color:var(--ink-soft);font-style:normal;margin-top:8px}

/* ---------- figures ---------- */
figure{margin:32px 0}
figure img,figure>svg{width:100%;border:1px solid var(--rule);border-radius:16px;background:var(--paper-2)}
figure.diagram{background:var(--paper-2);border:1px solid var(--rule);border-radius:16px;padding:22px 22px 14px}
figure.diagram svg{border:0;background:transparent;border-radius:0;width:100%}
figcaption{font-size:.86rem;color:var(--ink-soft);margin-top:12px;line-height:1.5}
figure.diagram figcaption{margin-top:14px;padding-top:12px;border-top:1px solid var(--rule)}

/* ---------- tables ---------- */
.tbl-wrap{margin:28px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--rule);border-radius:16px;background:var(--paper-2)}
table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:560px}
caption{caption-side:top;text-align:left;font-weight:600;font-size:.9rem;padding:14px 16px 0}
th,td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--rule)}
th{background:var(--tint-soft);font-family:var(--sans);font-size:.74rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--teal-deep)}
tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even) td{background:rgba(220,240,233,.18)}
td:first-child{font-weight:600;color:var(--ink)}
td{color:var(--ink-soft)}
td.y{color:var(--teal-deep);font-weight:600}

/* ---------- callouts ---------- */
.note{margin:30px 0;padding:20px 22px 20px 62px;background:var(--paper-2);border:1px solid var(--rule);border-radius:16px;color:var(--ink-soft);font-size:.97rem;line-height:1.6;position:relative}
.note:before{content:"";position:absolute;left:20px;top:22px;width:26px;height:26px;border-radius:7px;background:var(--teal);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 26'><rect width='26' height='26' rx='7' fill='black'/><path d='M13 6.5v13M6 9.5h4.4M6 13h4.4M15.6 9.5H20M15.6 13H20' stroke='white' stroke-width='1.6' stroke-linecap='round'/></svg>") center/contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 26'><rect width='26' height='26' rx='7' fill='black'/><path d='M13 6.5v13M6 9.5h4.4M6 13h4.4M15.6 9.5H20M15.6 13H20' stroke='white' stroke-width='1.6' stroke-linecap='round'/></svg>") center/contain no-repeat}
.note b{display:block;color:var(--ink);margin-bottom:5px;font-weight:600}

/* ---------- calculator ---------- */
.calc{background:var(--paper-2);border:1px solid var(--rule);border-radius:16px;padding:22px 22px 18px;margin:28px 0}
.calc h3{margin:0 0 14px;font-family:var(--sans);font-size:1rem;font-weight:600}
.calc .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc label{display:block;font-size:.86rem;color:var(--ink-soft);margin-bottom:6px}
.calc input,.calc select{width:100%;font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--rule);border-radius:10px;background:var(--paper)}
.calc .out{margin-top:18px;padding-top:16px;border-top:1px solid var(--rule);display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.calc .out b{display:block;font-family:var(--serif);font-size:1.7rem;font-weight:500;color:var(--teal-deep)}
.calc .out span{font-size:.84rem;color:var(--ink-soft)}

/* ---------- FAQ ---------- */
.faq{margin-top:10px;border-top:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:16px 0;font-weight:600;font-size:1rem;line-height:1.45;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";flex:none;width:26px;height:26px;border-radius:50%;background:var(--tint);color:var(--teal-deep);display:flex;align-items:center;justify-content:center;font-size:1.1rem;line-height:1;transition:transform .2s}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 18px;color:var(--ink-soft);max-width:62ch}
/* legacy FAQ markup (h3 + p) still renders */
.faq h3{margin:24px 0 6px;font-family:var(--sans);font-size:1rem;font-weight:600;letter-spacing:0}
.faq>p{margin-bottom:0;color:var(--ink-soft)}

/* ---------- author + share ---------- */
.author{display:flex;gap:16px;align-items:flex-start;margin:44px 0 0;padding:20px;background:var(--paper-2);border:1px solid var(--rule);border-radius:16px}
.author .av{flex:none;width:52px;height:52px;border-radius:50%;background:var(--teal);object-fit:cover;display:block}
.author b{display:block;font-weight:600}
.author p{margin:4px 0 0;font-size:.93rem;color:var(--ink-soft)}
.share{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:26px 0 0;font-size:.88rem;color:var(--ink-soft)}
.share a,.share button{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--rule);background:var(--paper-2);color:var(--ink);border-radius:999px;padding:7px 14px;font:inherit;font-size:.86rem;text-decoration:none;cursor:pointer}
.share a:hover,.share button:hover{border-color:var(--ink)}

/* ---------- CTA band ---------- */
.cta{margin:48px 0 0;background:var(--shelf);color:#EAF2EE;border-radius:24px;padding:40px 30px;text-align:center;position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;inset:auto -20% -60% -20%;height:70%;background:radial-gradient(50% 60% at 50% 100%, rgba(63,191,155,.28), rgba(63,191,155,0) 100%);pointer-events:none}
.cta>*{position:relative}
.cta h2{margin:0 auto 10px;border:0;padding:0;font-size:1.7rem;max-width:18ch;color:#fff}
.cta h2:before{display:none}
.cta p{color:#B9C9C1;max-width:42ch;margin:0 auto 22px}
.cta .btn-primary{background:var(--teal-lift);color:var(--ink)}
.cta .btn-primary:hover{background:#fff;color:var(--ink)}
.badges{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:8px}
.badge{display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--ink);border-radius:12px;padding:10px 18px;text-decoration:none;transition:background .18s}
.badge:hover{background:var(--tint)}
.badge .b1{font-size:.63rem;color:var(--ink-soft);line-height:1.2;display:block}
.badge .b2{font-size:.95rem;font-weight:600;line-height:1.2;display:block;font-family:var(--sans)}
.cta .fine{font-size:.82rem;color:#8FA59B;margin:16px 0 0}

/* ---------- related ---------- */
.related{margin-top:56px;padding-top:30px;border-top:1px solid var(--rule)}
.related h2{font-size:1.3rem;margin:0 0 18px;border:0;padding:0}
.related h2:before{display:none}
.related ul{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.related li{margin:0}
.related li a{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center;padding:12px;background:var(--paper-2);border:1px solid var(--rule);border-radius:16px;text-decoration:none;color:var(--ink);transition:border-color .18s,transform .18s}
.related li a:hover{border-color:var(--teal);transform:translateY(-1px)}
.related img{width:96px;height:64px;object-fit:cover;border-radius:10px;border:1px solid var(--rule);background:var(--paper)}
.related .thumb{width:96px;height:64px;border-radius:10px;background:var(--tint);display:flex;align-items:center;justify-content:center}
.related b{display:block;font-family:var(--serif);font-size:1.04rem;font-weight:500;line-height:1.3}
.related span{display:block;font-size:.86rem;color:var(--ink-soft);margin-top:3px}

/* ---------- blog hub ---------- */
.idx-head{padding:40px 0 30px;max-width:44em}
.idx-head h1{margin-bottom:12px}
.idx-head p{color:var(--ink-soft);font-size:1.1rem}
.cards{display:grid;gap:16px}
.card{background:var(--paper-2);border:1px solid var(--rule);border-radius:18px;padding:22px 22px 20px;text-decoration:none;display:flex;flex-direction:column;gap:8px;transition:border-color .18s,transform .18s}
.card:hover{border-color:var(--teal);transform:translateY(-2px)}
.card .tag{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-deep)}
.card h2{font-size:1.2rem;margin:2px 0 0;border:0;padding:0;color:var(--ink)}
.card h2:before{display:none}
.card p{font-size:.94rem;color:var(--ink-soft);margin:0}
.card .meta{font-size:.82rem;color:var(--ink-soft);margin-top:auto;padding-top:10px;opacity:.85}
.card img{border-radius:12px;border:1px solid var(--rule);margin-bottom:6px}
.soon{border:1px dashed var(--rule);border-radius:18px;padding:22px;color:var(--ink-soft)}
.soon .tag{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--amber)}
.soon h2{font-size:1.1rem;margin:8px 0 6px;border:0;padding:0;color:var(--ink)}
.soon p{font-size:.92rem;margin:0}

/* ---------- footer ---------- */
footer{padding:54px 0 40px;border-top:1px solid var(--rule);margin-top:88px}
.f-grid{display:grid;gap:30px}
.f-col h4{font-size:.8rem;font-weight:600;color:var(--ink);margin:0 0 12px;font-family:var(--sans)}
.f-col ul{list-style:none;padding:0;margin:0}
.f-col li{margin-bottom:8px;font-size:.93rem}
.f-col a{color:var(--ink-soft);text-decoration:none}
.f-col a:hover{color:var(--teal)}
.f-bottom{margin-top:36px;padding-top:22px;border-top:1px solid var(--rule);font-size:.82rem;color:var(--ink-soft);display:grid;gap:6px}

/* ---------- responsive ---------- */
@media(min-width:720px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:44px}
  .cards{grid-template-columns:1fr 1fr}
  .related ul{grid-template-columns:1fr 1fr}
  .f-grid{grid-template-columns:2fr 1fr 1fr 1fr}
  .f-bottom{display:flex;justify-content:space-between}
  .nav-links{display:flex}
}
@media(min-width:1024px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:56px}
  .rail{display:block}
  .toc-mobile{display:none}
  .cards{grid-template-columns:1fr 1fr 1fr}
}
@media(max-width:600px){
  .calc .row,.calc .out{grid-template-columns:1fr}
  .related li a{grid-template-columns:72px 1fr}
  .related img,.related .thumb{width:72px;height:50px}
  .cta{padding:32px 20px;border-radius:18px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}