/* Blog Alfer Engenharia — estilo compartilhado (mesma marca do site) */
:root{
  --tinta:#333333; --tinta-suave:#666666; --amarelo:#FCB454; --amarelo-esc:#E09A2B;
  --linha:#EAE8E4; --creme:#FBFAF8; --branco:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--tinta);background:var(--branco);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;color:var(--tinta);line-height:1.25;font-weight:600}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 26px}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:'Poppins';font-weight:600;font-size:14.5px;padding:12px 24px;border-radius:8px;transition:.18s;cursor:pointer;border:none}
.btn-cheio{background:var(--amarelo);color:#2a2a2a}
.btn-cheio:hover{background:#e7a23f}
.btn-linha{background:transparent;border:1px solid var(--linha);color:var(--tinta)}
.btn-linha:hover{border-color:var(--tinta)}

/* Header (igual ao site) */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--linha)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.nav .logo{height:60px;width:auto;display:block}
.nav a:has(.logo){display:flex;align-items:center}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{font-size:14.5px;color:var(--tinta-suave);transition:.18s}
.nav-links a.on{color:var(--tinta)}
.nav-links a:hover{color:var(--amarelo-esc)}
.nav .fone{font-family:'Poppins';font-weight:600;font-size:14.5px;color:var(--tinta);display:inline-flex;align-items:center;gap:6px}
.nav .fone svg{width:15px;height:15px;stroke:var(--amarelo-esc)}
@media(max-width:820px){.nav-links{display:none}}

/* Cabeçalho do blog / do post */
.blog-top{background:var(--creme);border-bottom:1px solid var(--linha);padding:54px 0 46px}
.blog-top .k{font-family:'Poppins';font-weight:600;font-size:13px;letter-spacing:1.4px;text-transform:uppercase;color:var(--amarelo-esc);margin-bottom:14px}
.blog-top h1{font-size:clamp(28px,4vw,40px);max-width:760px;letter-spacing:-.4px}
.blog-top p{color:var(--tinta-suave);max-width:640px;margin-top:16px;font-size:17px}
.crumb{font-size:13.5px;color:var(--tinta-suave);margin-bottom:18px}
.crumb a:hover{color:var(--tinta)}

/* Lista de posts (índice) */
.blog-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;padding:52px 0 20px}
.card{display:flex;flex-direction:column;background:var(--branco);border:1px solid var(--linha);border-radius:16px;overflow:hidden;transition:.18s}
.card:hover{border-color:#dcd8d2;transform:translateY(-2px)}
.card .thumb{width:100%;aspect-ratio:3/2;object-fit:cover;object-position:center top;display:block}
.card-body{padding:26px 28px;display:flex;flex-direction:column;flex:1}
.card .cat{font-family:'Poppins';font-weight:600;font-size:12px;letter-spacing:.6px;text-transform:uppercase;color:var(--amarelo-esc);margin-bottom:12px}
.card h2{font-size:21px;line-height:1.3}
.card p{color:var(--tinta-suave);font-size:15px;margin-top:12px;flex:1}
.card .ler{font-family:'Poppins';font-weight:600;font-size:14px;color:var(--tinta);margin-top:18px}
.card .ler:hover{color:var(--amarelo-esc)}
@media(max-width:760px){.blog-list{grid-template-columns:1fr}}

/* Corpo do artigo */
.article{max-width:720px;margin:0 auto;padding:52px 0 20px}
.article .meta{font-size:13.5px;color:var(--tinta-suave);margin-bottom:26px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.article .meta .tag{background:var(--creme);border:1px solid var(--linha);border-radius:20px;padding:4px 12px;font-family:'Poppins';font-weight:600;font-size:12px;color:var(--tinta)}
.article .capa{width:100%;border-radius:14px;display:block;margin:6px 0 32px;border:1px solid var(--linha)}
.article .lead{font-size:19px;color:var(--tinta);line-height:1.6;margin-bottom:8px}
.article h2{font-size:24px;margin:38px 0 14px}
.article h3{font-size:19px;margin:28px 0 10px}
.article p{margin:14px 0;color:#3d3d3d}
.article ul{margin:14px 0 14px 4px;list-style:none}
.article li{position:relative;padding-left:22px;margin:9px 0;color:#3d3d3d}
.article li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--amarelo-esc)}
.article strong{color:var(--tinta);font-weight:600}
.article .nota{background:var(--creme);border-left:3px solid var(--amarelo);border-radius:0 10px 10px 0;padding:18px 22px;margin:24px 0;font-size:15.5px;color:var(--tinta-suave)}
.article .nota b{color:var(--tinta)}

/* Caixa de CTA no fim do post */
.post-cta{max-width:720px;margin:44px auto 0;background:var(--tinta);color:#fff;border-radius:16px;padding:34px 34px}
.post-cta h3{color:#fff;font-size:21px}
.post-cta p{color:rgba(255,255,255,.8);margin:10px 0 20px;font-size:15.5px}

/* Footer institucional (escuro — igual ao site) */
footer{background:#2a2a2a;color:#fff;margin-top:60px}
.rodape-in{padding:58px 0 26px}
.rodape-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.rp-logobox{display:inline-flex;background:#fff;border-radius:14px;padding:13px 16px;margin-bottom:18px}
.rp-logobox img{height:46px;display:block}
.rp-marca p{color:#a9a9a9;font-size:14px;line-height:1.7;max-width:290px}
.rp-col h4{font-family:'Poppins';font-size:12.5px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase;color:var(--amarelo);margin-bottom:16px}
.rp-col ul{list-style:none}
.rp-col li{margin:9px 0}
.rp-col a{color:#c9c9c9;font-size:14px;transition:.15s}
.rp-col a:hover{color:var(--amarelo)}
.rp-contato li{display:flex;gap:10px;align-items:flex-start;margin:13px 0;line-height:1.55;color:#c9c9c9;font-size:14px}
.rp-contato svg{width:16px;height:16px;stroke:var(--amarelo);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:3px}
.rp-contato a{color:#c9c9c9}
.rp-contato a:hover{color:var(--amarelo)}
.rodape-base{border-top:1px solid #3d3d3d;margin-top:46px;padding-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#8a8a8a}
@media(max-width:860px){.rodape-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media(max-width:520px){.rodape-grid{grid-template-columns:1fr}}

/* Botão flutuante WhatsApp */
.zap{position:fixed;right:22px;bottom:22px;z-index:60;width:54px;height:54px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(37,211,102,.4);transition:.18s}
.zap:hover{transform:scale(1.07)}
.zap svg{width:28px;height:28px;fill:#fff}