/* MercaBot Blog — SEO content layout
 * Design: clean reading, premium feel, paleta verde MercaBot
 * Mobile-first, max-width 700px no corpo do post pra legibilidade.
 */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#080c09; --bg2:#0d120e; --bg3:#11181244;
  --text:#eaf2eb; --muted:#9ab09c; --faint:rgba(234,242,235,.45);
  --green:#00e676; --green-dim:#00b35a;
  --border:rgba(234,242,235,.08); --border-strong:rgba(234,242,235,.15);
}
html,body{background:var(--bg);color:var(--text);font-family:'Cabinet Grotesk','Inter',system-ui,-apple-system,sans-serif;font-feature-settings:'ss01','cv11';line-height:1.65;-webkit-font-smoothing:antialiased}
body{min-height:100vh}
a{color:var(--green);text-decoration:none;transition:opacity .15s}
a:hover{opacity:.8}

/* ── Topbar ────────────────────────────────────────────────────── */
.blog-topbar{position:sticky;top:0;z-index:10;background:rgba(8,12,9,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.blog-topbar .logo{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.05rem;color:var(--text);text-decoration:none}
.blog-topbar .logo .mark{width:28px;height:28px;border-radius:8px;background:var(--green);display:flex;align-items:center;justify-content:center;color:var(--bg);font-weight:800}
.blog-topbar .logo em{font-style:normal;color:var(--green)}
.blog-topbar nav{display:flex;align-items:center;gap:1.2rem;font-size:.92rem;flex-wrap:wrap}
.blog-topbar nav a{color:var(--muted);text-decoration:none}
.blog-topbar nav a.cta{background:var(--green);color:var(--bg);padding:.5rem 1rem;border-radius:8px;font-weight:700}
.blog-topbar nav a.cta:hover{opacity:1;background:var(--green-dim)}

/* ── Blog index hero ───────────────────────────────────────────── */
.blog-hero{padding:3rem 1.5rem 1.5rem;max-width:1100px;margin:0 auto}
.blog-hero h1{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:clamp(2.2rem,4.5vw,3.6rem);line-height:1.05;letter-spacing:-.02em;font-weight:700;margin-bottom:.65rem}
.blog-hero p{font-size:1.1rem;color:var(--muted);max-width:600px}

/* ── Post grid ──────────────────────────────────────────────────── */
.blog-grid{max-width:1100px;margin:1rem auto 4rem;padding:0 1.5rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:1.2rem}
.blog-card{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:1.4rem 1.5rem;transition:border-color .18s,transform .18s;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.blog-card:hover{border-color:rgba(0,230,118,.35);transform:translateY(-2px);opacity:1}
.blog-card .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--green);margin-bottom:.7rem}
.blog-card h2{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:1.25rem;line-height:1.25;margin-bottom:.55rem;color:var(--text);font-weight:700}
.blog-card p{color:var(--muted);font-size:.95rem;line-height:1.55;flex:1}
.blog-card .meta{margin-top:.85rem;font-size:.78rem;color:var(--faint);display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
/* BLG-010: substituido emoji "📖" via CSS content (nao traduzivel, ruidoso pra crawlers)
   por SVG inline injetado via blog-filter.js no .meta de cada card. */
.blog-card .meta svg{width:14px;height:14px;flex-shrink:0;opacity:.8}
/* SEO-D1 (2026-05-19): freshness signal — data de publicacao visivel no card.
   Mesmo estilo de .meta mas sem padding extra; renderiza inline antes do "min". */
.blog-card .date{margin-top:.85rem;font-size:.78rem;color:var(--faint);font-weight:500}
.blog-card .date + .meta{margin-top:.25rem}

/* ── Article (post page) ───────────────────────────────────────── */
article.blog-post{max-width:720px;margin:2.5rem auto 5rem;padding:0 1.5rem}
article.blog-post .tag{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--green);margin-bottom:1rem}
article.blog-post h1{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.1;letter-spacing:-.015em;font-weight:700;margin-bottom:.6rem}
article.blog-post .lede{font-size:1.18rem;color:var(--muted);line-height:1.55;margin-bottom:.9rem}
article.blog-post .meta{font-size:.85rem;color:var(--faint);margin-bottom:2rem;padding-bottom:1.4rem;border-bottom:1px solid var(--border)}
article.blog-post h2{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:1.55rem;margin:2.4rem 0 .85rem;line-height:1.25;font-weight:700}
article.blog-post h3{font-size:1.2rem;margin:1.8rem 0 .7rem;font-weight:700;color:var(--text)}
article.blog-post p{margin-bottom:1.1rem;font-size:1.04rem;color:var(--text)}
article.blog-post ul,article.blog-post ol{margin:0 0 1.3rem 1.4rem;color:var(--text)}
article.blog-post li{margin-bottom:.45rem;font-size:1rem;line-height:1.65}
article.blog-post strong{color:var(--text);font-weight:700}
article.blog-post code{background:rgba(0,230,118,.08);color:var(--green);padding:.15rem .4rem;border-radius:4px;font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.92em}
article.blog-post blockquote{border-left:3px solid var(--green);background:rgba(0,230,118,.04);padding:.95rem 1.2rem;margin:1.4rem 0;color:var(--muted);font-style:italic;border-radius:0 8px 8px 0}
article.blog-post hr{border:none;border-top:1px solid var(--border);margin:2.4rem 0}

/* ── CTA card no fim do post ───────────────────────────────────── */
.post-cta{background:linear-gradient(135deg,rgba(0,230,118,.08),rgba(0,180,80,.02));border:1.5px solid rgba(0,230,118,.22);border-radius:14px;padding:1.6rem 1.7rem;margin:2.5rem 0;text-align:center}
.post-cta h3{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:1.3rem;margin-bottom:.6rem;color:var(--text)}
.post-cta p{color:var(--muted);margin-bottom:1.1rem;font-size:1rem}
.post-cta .btn{display:inline-block;background:var(--green);color:var(--bg);font-weight:700;padding:.85rem 1.6rem;border-radius:10px;text-decoration:none;transition:background .15s;font-size:1rem}
.post-cta .btn:hover{background:var(--green-dim);opacity:1}

/* ── Related posts no fim ─────────────────────────────────────── */
.related-posts{max-width:720px;margin:3rem auto 4rem;padding:0 1.5rem}
.related-posts h3{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:1.1rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:700;margin-bottom:1rem}
.related-posts ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}
.related-posts li a{color:var(--text);padding:.7rem .9rem;background:var(--bg2);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:space-between;text-decoration:none;transition:border-color .15s}
.related-posts li a:hover{border-color:rgba(0,230,118,.35)}
.related-posts li a::after{content:"→";color:var(--green);opacity:.6}

/* ── Footer ────────────────────────────────────────────────────── */
.blog-footer{background:var(--bg2);border-top:1px solid var(--border);padding:2.5rem 1.5rem;text-align:center;color:var(--muted);font-size:.88rem}
.blog-footer a{margin:0 .6rem}
.blog-footer .copy{font-size:.78rem;color:var(--faint);margin-top:.8rem}

/* ── Newsletter widget ─────────────────────────────────────────── */
.newsletter-cta{max-width:720px;margin:3rem auto 1rem;padding:0 1.5rem}
.newsletter-cta .nl-card{background:linear-gradient(135deg,rgba(0,230,118,.08),rgba(0,180,80,.02));border:1.5px solid rgba(0,230,118,.22);border-radius:14px;padding:1.6rem 1.7rem}
.newsletter-cta h3{font-family:'Clash Display','Cabinet Grotesk',sans-serif;font-size:1.25rem;margin-bottom:.5rem;color:var(--text)}
.newsletter-cta .lede{color:var(--muted);margin-bottom:1rem;font-size:.96rem;line-height:1.55}
.newsletter-cta form{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.5rem}
.newsletter-cta input[type=email]{flex:1;min-width:220px;background:var(--bg);border:1px solid rgba(234,242,235,.18);border-radius:10px;color:var(--text);padding:.85rem 1rem;font-size:.96rem;font-family:inherit}
.newsletter-cta input[type=email]:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(0,230,118,.15)}
.newsletter-cta button{background:var(--green);color:var(--bg);font-weight:700;padding:.85rem 1.4rem;border-radius:10px;border:none;font-size:.95rem;cursor:pointer;font-family:inherit;transition:background .15s}
.newsletter-cta button:hover{background:var(--green-dim)}
.newsletter-cta button:disabled{opacity:.55;cursor:not-allowed}
.newsletter-cta .consent{font-size:.78rem;color:var(--faint);line-height:1.55;margin-top:.6rem}
.newsletter-cta .consent a{color:var(--muted);text-decoration:underline}
.newsletter-cta .status{font-size:.9rem;margin-top:.75rem;line-height:1.5}
.newsletter-cta .status.ok{color:var(--green)}
.newsletter-cta .status.err{color:#ff8a3d}

/* ── Blog filters (search + category chips) ─────────────────────── */
.blog-filters{max-width:1100px;margin:1.5rem auto 0;padding:0 1.5rem;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.blog-filters .search-wrap{flex:1 1 240px;min-width:240px;max-width:380px}
#blogSearch{width:100%;background:var(--bg2);border:1px solid var(--border);color:var(--text);padding:.6rem 1rem;border-radius:8px;font-size:.92rem;font-family:inherit}
#blogSearch:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(0,230,118,.15)}
.blog-chips{display:flex;flex-wrap:wrap;gap:.4rem}
.blog-chip{background:var(--bg2);border:1px solid var(--border);color:var(--muted);padding:.4rem .9rem;border-radius:999px;font-size:.82rem;cursor:pointer;font-family:inherit;transition:all .15s}
.blog-chip[aria-pressed="true"]{background:var(--green);color:#080c09;border-color:var(--green);font-weight:700}
.blog-chip:hover{color:var(--text)}
.blog-chip[aria-pressed="true"]:hover{color:#080c09;opacity:.92}
.blog-empty{max-width:1100px;margin:1.5rem auto;padding:2rem 1.5rem;text-align:center;color:var(--muted);font-size:.95rem;display:none}

/* ── Table of Contents (auto, BLG-007) ─────────────────────────── */
.blog-toc{background:var(--bg2);border:1px solid var(--border-strong);border-radius:12px;padding:1rem 1.25rem;margin:1.5rem 0;font-size:.9rem}
.blog-toc-title{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:.6rem;font-weight:700}
.blog-toc ol{margin:0;padding-left:1.2rem;list-style:decimal}
.blog-toc li{margin:.3rem 0}
.blog-toc a{color:var(--muted);text-decoration:none;transition:color .15s}
.blog-toc a:hover{color:var(--green);opacity:1}
@media(min-width:1280px){.blog-toc{position:sticky;top:5rem}}

/* ── Share buttons (BLG-009) ───────────────────────────────────── */
.blog-share{display:flex;gap:.6rem;margin:2rem 0 1rem;padding:1rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);align-items:center}
.blog-share::before{content:"Compartilhar:";color:var(--faint);font-size:.84rem;margin-right:.5rem}
html[lang^="en"] .blog-share::before{content:"Share:"}
html[lang^="es"] .blog-share::before{content:"Compartir:"}
.blog-share a{width:36px;height:36px;border-radius:50%;background:var(--bg2);border:1px solid var(--border-strong);display:flex;align-items:center;justify-content:center;color:var(--muted);transition:background .15s,color .15s,border-color .15s;text-decoration:none}
.blog-share a:hover{background:var(--green);color:#080c09;border-color:var(--green);opacity:1}
.blog-share svg{width:18px;height:18px;fill:currentColor}