/* KlausPay — Blog. Estilo compartilhado, mesma marca do site (dark + vermelho). */
:root{
  --brand:#E11D2A;--brand-600:#c4141f;--brand-700:#a30f18;
  --brand-glow:rgba(225,29,42,.35);--brand-soft:rgba(225,29,42,.12);
  --bg:#0B0B0F;--bg-2:#101017;--surface:#14141C;--surface-2:#1A1A24;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.14);
  --text:#F4F4F6;--muted:#A0A0AD;--muted-2:#71717F;
  --font:'Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,'SF Mono','Cascadia Code','Roboto Mono',Menlo,Consolas,monospace;
  --radius:16px;--radius-sm:10px;--maxw:1160px;--shadow:0 20px 60px -20px rgba(0,0,0,.7);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* NAV (igual ao site) */
header.nav{position:sticky;top:0;z-index:50;background:rgba(11,11,15,.72);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-700));display:grid;place-items:center;color:#fff;font-weight:900;font-size:16px;box-shadow:0 6px 20px -4px var(--brand-glow)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--muted);font-size:14.5px;font-weight:500;transition:color .18s}
.nav-links a:hover{color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:14.5px;padding:11px 20px;border-radius:10px;cursor:pointer;border:1px solid transparent;transition:all .18s;white-space:nowrap}
.btn-ghost{color:var(--text);border-color:var(--line-strong);background:transparent}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--muted-2)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-600));box-shadow:0 8px 24px -8px var(--brand-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 30px -8px var(--brand-glow)}
.btn-lg{padding:15px 28px;font-size:16px;border-radius:12px}

/* Breadcrumb */
.crumb{font-size:13.5px;color:var(--muted-2);padding:26px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span{color:var(--muted-2)}

/* Blog index */
.blog-hero{padding:48px 0 20px;text-align:center;max-width:720px;margin:0 auto}
.blog-hero .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.blog-hero h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.03em;line-height:1.1;font-weight:800}
.blog-hero p{color:var(--muted);font-size:17px;margin-top:16px}
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;padding:44px 0 20px}
.post-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:border-color .2s,transform .2s}
.post-card:hover{border-color:var(--brand);transform:translateY(-3px)}
.post-card .tag{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);background:var(--brand-soft);border:1px solid rgba(225,29,42,.25);padding:4px 10px;border-radius:6px;margin-bottom:14px}
.post-card h2{font-size:20px;line-height:1.25;letter-spacing:-.02em;margin-bottom:10px}
.post-card p{color:var(--muted);font-size:14.5px}
.post-card .meta{color:var(--muted-2);font-size:12.5px;margin-top:16px}

/* Article */
.article{max-width:760px;margin:0 auto;padding:8px 24px 20px}
.article .tag{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);background:var(--brand-soft);border:1px solid rgba(225,29,42,.25);padding:4px 10px;border-radius:6px;margin:20px 0 16px}
.article h1{font-size:clamp(28px,4vw,42px);line-height:1.12;letter-spacing:-.03em;font-weight:800;margin-bottom:16px}
.article .byline{color:var(--muted-2);font-size:13.5px;margin-bottom:28px;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.article .byline b{color:var(--muted);font-weight:600}
.article h2{font-size:clamp(22px,2.8vw,29px);letter-spacing:-.02em;line-height:1.2;font-weight:800;margin:40px 0 14px;scroll-margin-top:84px}
.article h3{font-size:19px;letter-spacing:-.01em;margin:28px 0 10px;font-weight:700}
.article p{color:#d7d7de;font-size:16.5px;margin-bottom:16px}
.article ul,.article ol{margin:0 0 18px 20px;color:#d7d7de;font-size:16.5px}
.article li{margin-bottom:8px}
.article a{color:#ff8a91;text-decoration:underline;text-underline-offset:2px}
.article strong{color:var(--text)}
.article .lead{font-size:19px;color:var(--muted)}

/* TL;DR */
.tldr{background:linear-gradient(160deg,var(--surface),var(--bg-2));border:1px solid var(--line-strong);border-left:3px solid var(--brand);border-radius:var(--radius-sm);padding:22px 24px;margin:8px 0 32px}
.tldr .k{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--brand);margin-bottom:8px}
.tldr p{font-size:16px;color:var(--text);margin:0}

/* Tabela */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line-strong);border-radius:var(--radius);margin:8px 0 24px;box-shadow:var(--shadow)}
table.data{width:100%;border-collapse:collapse;min-width:520px}
table.data th,table.data td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px}
table.data thead th{background:var(--surface);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700}
table.data td.hl{color:var(--brand);font-weight:700}
table.data tbody tr:last-child td{border-bottom:0}
.yes{color:#4ade80;font-weight:700}.no{color:#f87171;font-weight:700}.mid{color:#fbbf24}

/* Callout */
.callout{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;margin:8px 0 24px;font-size:15px;color:var(--muted)}
.callout b{color:var(--text)}

/* FAQ visível */
.faq-block{margin:40px 0 8px}
.faq-block h2{margin-bottom:8px}
.qa{border-bottom:1px solid var(--line);padding:20px 0}
.qa h3{font-size:17.5px;margin:0 0 8px;color:var(--text);font-weight:700}
.qa p{margin:0;color:var(--muted);font-size:15.5px}

/* CTA */
.post-cta{background:linear-gradient(160deg,var(--surface),var(--bg-2));border:1px solid var(--line-strong);border-radius:20px;padding:40px 32px;text-align:center;margin:44px 0 8px;position:relative;overflow:hidden}
.post-cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% -20%,var(--brand-glow),transparent 60%);opacity:.6}
.post-cta>*{position:relative;z-index:1}
.post-cta h2{font-size:26px;letter-spacing:-.02em;margin-bottom:10px;border:0;padding:0}
.post-cta p{color:var(--muted);margin-bottom:22px}

/* Relacionados */
.related{margin:44px 0 8px}
.related h2{font-size:20px;margin-bottom:16px}
.related ul{list-style:none;margin:0;display:flex;flex-direction:column;gap:10px}
.related a{color:var(--muted);font-size:15px}
.related a:hover{color:var(--brand)}

/* Footer */
footer{border-top:1px solid var(--line);background:var(--bg-2);padding:48px 0 28px;margin-top:64px}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
.foot-bottom p{color:var(--muted-2);font-size:13px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-links a{color:var(--muted);font-size:13px}
.foot-links a:hover{color:var(--brand)}

@media(max-width:720px){
  .nav-links{display:none}
  .post-grid{grid-template-columns:1fr}
  .article h1{font-size:30px}
}