/* blog.css, estilos do blog do Lumi. Tema escuro alinhado a landing. */
:root{
  --bg:#070708; --bg-2:#0b0b0e; --surface:#141418; --surface-2:#1a1a20;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.14);
  --txt:#f6f6f8; --muted:#a2a2ae; --muted-2:#74747f;
  --orange:#ff7e1a; --orange-2:#ff9d3d; --orange-deep:#ff5e00; --orange-soft:rgba(255,126,26,.12);
  --green:#16c64f; --green-2:#22e361;
  --radius:18px; --radius-sm:12px; --maxw:760px; --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(255,126,26,.32);color:#fff}

/* nav */
.b-nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 22px;background:rgba(8,8,10,.72);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line)}
.b-brand{display:flex;align-items:center;gap:9px;font-weight:800;letter-spacing:-.02em;font-size:18px;color:#fff}
.b-brand img{height:26px;width:26px;filter:drop-shadow(0 0 7px rgba(120,230,150,.22))}
.b-nav-r{display:flex;align-items:center;gap:8px}
.b-nav-r a.b-link{font-size:14px;color:var(--muted);padding:8px 12px;border-radius:11px;transition:.2s}
.b-nav-r a.b-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.b-cta-btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;color:#1a0d00;background:linear-gradient(180deg,var(--orange-2),var(--orange) 55%,var(--orange-deep));padding:10px 18px;border-radius:12px;box-shadow:0 8px 22px -8px rgba(255,126,26,.6);transition:transform .2s var(--ease)}
.b-cta-btn:hover{transform:translateY(-2px)}

/* container */
.b-wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.b-wide{max-width:1080px}

/* breadcrumb */
.b-crumb{font-size:13px;color:var(--muted-2);margin:26px auto 0;max-width:var(--maxw);padding:0 22px}
.b-crumb a:hover{color:var(--orange-2)}

/* index hero */
.b-hero{max-width:760px;margin:0 auto;padding:54px 22px 14px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--orange-2);padding:7px 14px;border-radius:100px;background:var(--orange-soft);border:1px solid rgba(255,126,26,.22);margin-bottom:18px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);box-shadow:0 0 10px var(--orange)}
.b-hero h1{font-size:clamp(30px,5vw,44px);font-weight:800;letter-spacing:-.025em;line-height:1.1;margin-bottom:14px}
.b-hero p{font-size:17px;color:var(--muted)}
.grad{background:linear-gradient(105deg,#fff 5%,#22e361 32%,#ffd23f 58%,var(--orange) 92%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* card grid */
.b-grid{max-width:1080px;margin:34px auto 0;padding:0 22px;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.b-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .2s var(--ease),border-color .2s}
.b-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.b-card .tag{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--orange-2);margin-bottom:10px}
.b-card h2{font-size:19px;font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:8px}
.b-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;flex:1}
.b-card .more{font-size:14px;font-weight:700;color:var(--orange-2)}

/* article */
.b-article{margin:18px auto 0}
.b-article h1{font-size:clamp(28px,4.6vw,40px);font-weight:800;letter-spacing:-.025em;line-height:1.12;margin:14px 0 14px}
.b-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:var(--muted-2);margin-bottom:8px}
.b-meta .by{color:var(--muted)}
.b-lead{font-size:18.5px;color:#e9e9ef;margin:18px 0 8px;line-height:1.6}
.b-article h2{font-size:25px;font-weight:800;letter-spacing:-.015em;margin:38px 0 12px;color:#fff}
.b-article h3{font-size:19px;font-weight:700;margin:26px 0 8px;color:#fff}
.b-article p{font-size:16.5px;color:#cfcfd8;margin:0 0 16px}
.b-article ul,.b-article ol{margin:0 0 18px;padding-left:22px;color:#cfcfd8;font-size:16.5px}
.b-article li{margin:0 0 9px}
.b-article strong{color:#fff;font-weight:600}
.b-article a{color:var(--orange-2);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,157,61,.4)}
.b-article a:hover{text-decoration-color:var(--orange-2)}
.b-key{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:var(--radius-sm);padding:16px 18px;margin:0 0 18px;font-size:16px;color:#e9e9ef}

/* toc */
.b-toc{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 20px;margin:22px 0}
.b-toc b{display:block;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);margin-bottom:10px}
.b-toc a{display:block;font-size:15px;color:var(--muted);padding:4px 0}
.b-toc a:hover{color:var(--orange-2)}

/* CTA box */
.b-cta{background:linear-gradient(135deg,rgba(255,126,26,.14),rgba(34,227,97,.08));border:1px solid rgba(255,126,26,.28);border-radius:var(--radius);padding:26px;margin:30px 0;text-align:center}
.b-cta h3{font-size:21px;font-weight:800;color:#fff;margin-bottom:8px}
.b-cta p{font-size:15.5px;color:var(--muted);margin-bottom:16px}

/* faq */
.b-faq{margin:14px 0 0}
.b-faq details{border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 18px;margin-bottom:10px;background:var(--surface)}
.b-faq summary{cursor:pointer;list-style:none;padding:15px 0;font-weight:600;font-size:16px;color:#fff;display:flex;justify-content:space-between;gap:12px}
.b-faq summary::-webkit-details-marker{display:none}
.b-faq summary::after{content:"+";color:var(--orange-2);font-weight:700;font-size:20px}
.b-faq details[open] summary::after{content:"\2212"}
.b-faq details[open] summary{padding-bottom:6px}
.b-faq .a{padding:0 0 16px;color:#cfcfd8;font-size:15.5px}

/* footer */
.b-foot{border-top:1px solid var(--line);margin-top:46px;padding:30px 22px 64px}
.b-foot .in{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.b-foot a{font-size:13.5px;color:var(--muted);transition:color .2s}
.b-foot a:hover{color:var(--green-2)}
.b-foot .copy{font-size:12.5px;color:var(--muted-2);width:100%;border-top:1px solid var(--line);padding-top:16px;margin-top:6px}

@media(max-width:560px){
  .b-nav-r a.b-link{display:none}
  .b-article h2{font-size:22px}
}