:root{
  --blue:#0044D9; --blue-deep:#0036AD; --green:#16A34A; --green-deep:#15803D;
  --ink:#0F1E3D; --ink-deep:#001030; --ink-soft:#43506A; --muted:#8A93A6;
  --ground:#F4F7FC; --card:#FFFFFF; --tint-blue:#E1EAFF; --tint-green:#DBF3E4; --line:#E4E9F2;
  --shadow:0 18px 50px -24px rgba(15,30,61,.32); --shadow-sm:0 8px 24px -14px rgba(15,30,61,.28);
  --radius:20px; --maxw:1120px; --maxw-read:760px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Poppins',system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);
  background:var(--ground);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-read{width:100%;max-width:var(--maxw-read);margin:0 auto;padding:0 24px}
h1,h2,h3{margin:0;letter-spacing:-.02em;font-weight:800;line-height:1.12}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(244,247,252,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.brand img{width:36px;height:36px;border-radius:10px;box-shadow:var(--shadow-sm)}
.brand .b1{color:var(--ink)} .brand .b2{color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:16px}
.nav-link{font-weight:600;color:var(--ink-soft);font-size:.95rem}
.nav-link:hover{color:var(--blue);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:.95rem;
  padding:.6rem 1.15rem;border-radius:999px;transition:transform .15s ease,box-shadow .2s ease;cursor:pointer;border:0}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 26px -12px rgba(0,68,217,.7)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-green{background:var(--green);color:#fff;box-shadow:0 12px 26px -12px rgba(22,163,74,.6)}
.btn-green:hover{transform:translateY(-2px)}
@media(max-width:560px){.nav-link{display:none}}

/* blog home hero */
.blog-hero{text-align:center;padding:60px 0 22px}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue-deep)}
.blog-hero h1{font-size:clamp(2rem,4.8vw,3rem);margin:12px 0 0;line-height:1.1}
.blog-hero p{color:var(--ink-soft);font-size:1.12rem;max-width:60ch;margin:16px auto 0}

/* cards */
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:34px 0 70px}
@media(max-width:900px){.posts-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.posts-grid{grid-template-columns:1fr}}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .2s}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);text-decoration:none}
.post-card .tag{align-self:flex-start;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--blue);background:var(--tint-blue);padding:5px 11px;border-radius:999px}
.post-card h2{font-size:1.16rem;font-weight:800;margin:14px 0 0;line-height:1.25;color:var(--ink)}
.post-card p{color:var(--ink-soft);font-size:.95rem;margin:10px 0 0;flex:1}
.post-card .more{margin-top:16px;font-weight:700;color:var(--blue);font-size:.95rem}

/* article */
.post{background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-sm);
  padding:clamp(26px,4vw,54px);margin:34px 0 60px}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:14px}
.post h1{font-size:clamp(1.7rem,3.8vw,2.5rem);line-height:1.12}
.post .meta{color:var(--muted);font-size:.92rem;margin-top:12px}
.post .lead{font-size:1.16rem;color:var(--ink);font-weight:500;margin:24px 0 0}
.post h2{font-size:1.4rem;font-weight:800;margin:34px 0 0}
.post h3{font-size:1.12rem;font-weight:700;margin:24px 0 0}
.post p{margin:14px 0 0;color:var(--ink-soft)}
.post ul,.post ol{margin:14px 0 0;padding-left:22px;color:var(--ink-soft)}
.post li{margin:8px 0}
.post strong{color:var(--ink)}
.callout{background:var(--tint-blue);border:1px solid #C7D7FF;border-left:4px solid var(--blue);
  border-radius:12px;padding:16px 18px;margin:24px 0 0;color:var(--ink)}
.callout.warn{background:#FEF3E2;border-color:#F6D9A8;border-left-color:#E08A1E}
.callout.good{background:var(--tint-green);border-color:#B7E6C6;border-left-color:var(--green)}
.cta-box{margin:34px 0 0;background:var(--ink-deep);border-radius:20px;padding:28px;color:#eaf1ff;text-align:center}
.cta-box h3{font-size:1.3rem;font-weight:800;color:#fff;margin:0}
.cta-box p{color:#bcc9e6;margin:10px 0 18px}

/* footer */
footer{border-top:1px solid var(--line);background:var(--card);padding:34px 0;margin-top:20px}
.foot-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
footer p{color:var(--muted);font-size:.86rem;margin:0}


/* Leia também (SEO — links internos) */
.leia-tambem{max-width:760px;margin:6px auto 56px;padding:0 22px}
.leia-tambem h2{font-size:1.25rem;margin:0 0 14px}
.leia-tambem ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.leia-tambem li{margin:0}
.leia-tambem a{display:block;padding:14px 16px;border:1px solid rgba(0,0,0,.12);border-radius:12px;font-weight:600;transition:.15s ease}
.leia-tambem a:hover{border-color:currentColor;text-decoration:none;transform:translateY(-1px)}
@media (prefers-color-scheme:dark){.leia-tambem a{border-color:rgba(255,255,255,.18)}}