/* Blog Carta Certa Capital — estilo compartilhado (segue identidade/design-guide.md) */
:root{
  --bg-dark:#0A0A0A;--bg-dark-2:#101010;
  --green:#4ADE80;--green-strong:#22C55E;
  --blue:#2563EB;
  --ink:#111111;--ink-soft:#4B5563;
  --paper:#FFFFFF;--paper-2:#F5F5F5;
  --line:#E5E7EB;--line-dark:rgba(255,255,255,.09);
  --radius:16px;--radius-lg:24px;
  --shadow:0 10px 40px rgba(0,0,0,.08);
  --font:'Inter',system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--paper);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
::selection{background:var(--green);color:var(--ink)}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:760px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 30px;border-radius:999px;font-size:15px;font-weight:700;transition:transform .25s,box-shadow .25s;border:none;cursor:pointer;font-family:inherit}
.btn:hover{transform:translateY(-2px)}
.btn-green{background:var(--green);color:#052E16}
.btn-green:hover{box-shadow:0 8px 30px rgba(74,222,128,.35)}

/* nav */
nav{position:fixed;inset:0 0 auto 0;z-index:100;background:rgba(10,10,10,.8);backdrop-filter:blur(16px);border-bottom:1px solid var(--line-dark)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;letter-spacing:-.02em}
.logo-img{height:40px;width:auto;display:block}
.nav-links{display:flex;gap:28px;font-size:14px;font-weight:500;color:rgba(255,255,255,.75)}
.nav-links a:hover{color:var(--green)}
.nav-cta{padding:10px 22px;font-size:13.5px}
.cta-short{display:none}
@media(max-width:860px){.nav-links{display:none}}
@media(max-width:560px){
  .wrap{padding:0 16px}
  .logo-img{height:30px}
  .nav-cta{padding:8px 14px;font-size:12px}
  .cta-full{display:none}
  .cta-short{display:inline}
}

/* hero do blog / do artigo */
.blog-hero{background:var(--bg-dark);color:#fff;padding:150px 0 70px;position:relative;overflow:hidden}
.blog-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 380px at 85% 110%,rgba(34,197,94,.25),transparent 60%),radial-gradient(500px 300px at 5% 0%,rgba(37,99,235,.12),transparent 60%);pointer-events:none}
.blog-hero>*{position:relative;z-index:1}
.crumbs{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:18px}
.crumbs a:hover{color:var(--green)}
.tag{display:inline-block;padding:6px 14px;border-radius:999px;background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.3);color:var(--green);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:18px}
.blog-hero h1{font-size:clamp(30px,4.6vw,50px);font-weight:900;letter-spacing:-.03em;line-height:1.08;max-width:820px}
.blog-hero .meta{margin-top:20px;font-size:14px;color:rgba(255,255,255,.55)}
.blog-hero .sub{margin-top:18px;font-size:17px;color:rgba(255,255,255,.7);max-width:640px}

/* grid de cards (índice) */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:70px 0 100px}
@media(max-width:960px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.post-grid{grid-template-columns:1fr}}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform .35s,box-shadow .35s,border-color .35s}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-strong)}
.post-card.featured{grid-column:1/-1;flex-direction:row}
@media(max-width:800px){.post-card.featured{flex-direction:column}}
.post-thumb{background:linear-gradient(140deg,#0A0A0A,#0E1A12);min-height:180px;display:grid;place-items:center;font-size:52px;position:relative;overflow:hidden}
.post-thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(300px 180px at 80% 100%,rgba(74,222,128,.35),transparent 65%)}
.featured .post-thumb{flex:1;min-height:260px;font-size:80px}
.post-body{padding:26px;display:flex;flex-direction:column;gap:10px;flex:1.2}
.post-cat{font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--green-strong)}
.post-body h2,.post-body h3{font-size:19px;font-weight:800;letter-spacing:-.015em;line-height:1.3}
.featured .post-body h2{font-size:26px}
.post-body p{font-size:14.5px;color:var(--ink-soft)}
.post-more{margin-top:auto;padding-top:14px;font-size:14px;font-weight:700;color:var(--green-strong)}

/* corpo do artigo */
article{padding:64px 0 40px}
article p{margin:0 0 22px;font-size:17px;color:#1F2937}
article h2{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:48px 0 16px;line-height:1.25}
article h3{font-size:20px;font-weight:700;margin:36px 0 12px}
article ul,article ol{margin:0 0 22px 24px;font-size:17px;color:#1F2937}
article li{margin-bottom:10px}
article strong{color:var(--ink)}
article a{color:var(--green-strong);font-weight:600;border-bottom:1px solid rgba(34,197,94,.35)}
article a:hover{border-bottom-color:var(--green-strong)}
.resposta-direta{background:var(--paper-2);border-left:4px solid var(--green);border-radius:0 var(--radius) var(--radius) 0;padding:22px 26px;margin:0 0 34px;font-size:17px}
.destaque{background:linear-gradient(160deg,#0A0A0A,#0E1A12);color:#fff;border-radius:var(--radius-lg);padding:34px;margin:36px 0}
.destaque .num{font-size:38px;font-weight:900;color:var(--green);letter-spacing:-.02em}
.destaque p{color:rgba(255,255,255,.75);margin:8px 0 0;font-size:15.5px}
table{width:100%;border-collapse:collapse;margin:0 0 28px;font-size:15.5px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}
th{background:var(--paper-2);font-weight:700;font-size:14px}
td strong{font-variant-numeric:tabular-nums}
.table-scroll{overflow-x:auto;margin:0 0 28px}
.table-scroll table{margin:0;min-width:520px}

/* CTA do artigo */
.artigo-cta{background:var(--bg-dark);color:#fff;border-radius:var(--radius-lg);padding:44px 40px;margin:56px 0;text-align:center;position:relative;overflow:hidden}
.artigo-cta::after{content:"";position:absolute;inset:0;background:radial-gradient(420px 240px at 50% 120%,rgba(34,197,94,.35),transparent 65%);pointer-events:none}
.artigo-cta>*{position:relative;z-index:1}
.artigo-cta h2{margin:0 0 10px;font-size:26px}
.artigo-cta p{color:rgba(255,255,255,.7);margin:0 0 24px;font-size:16px}

/* leia também */
.leia-tambem{background:var(--paper-2);padding:70px 0 90px}
.leia-tambem h2{font-size:26px;font-weight:800;letter-spacing:-.02em;margin-bottom:30px}
.leia-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:800px){.leia-grid{grid-template-columns:1fr}}
.leia-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .3s,box-shadow .3s}
.leia-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.leia-card h3{font-size:16px;font-weight:700;line-height:1.35;margin:8px 0}
.leia-card span{font-size:13px;font-weight:700;color:var(--green-strong)}

/* footer */
footer{background:var(--bg-dark);color:#fff;border-top:1px solid var(--line-dark);padding:52px 0 36px}
.foot{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot small{display:block;margin-top:12px;font-size:13px;color:rgba(255,255,255,.4);max-width:380px;line-height:1.6}
.foot-links{display:flex;gap:26px;font-size:14px;color:rgba(255,255,255,.6)}
.foot-links a:hover{color:var(--green)}
.foot-base{margin-top:40px;padding-top:22px;border-top:1px solid var(--line-dark);font-size:12.5px;color:rgba(255,255,255,.35)}

/* mobile */
@media(max-width:640px){
  .blog-hero{padding:120px 0 50px}
  .post-grid{padding:40px 0 60px}
  article{padding:44px 0 24px}
  .leia-tambem{padding:44px 0 60px}
  .artigo-cta{padding:32px 26px}
  .destaque{padding:26px}
  .post-card.featured .post-thumb{min-height:180px;font-size:52px}
}