/* Blog Planeta Brothers — estilo compartilhado (índice + artigos) */
:root {
  --preto: #0a0a0f; --fundo-2: #14131c; --fundo-3: #1c1a28; --borda: #232232;
  --branco-gelo: #f2f2f2; --texto-2: #bdbdbd; --texto-3: #8b8b98;
  --violeta: #6d28d9; --azul: #3b82f6; --acento-claro: #a5b4fc;
  --grad: linear-gradient(90deg, #6d28d9, #3b82f6);
  --grad-br: linear-gradient(135deg, #6d28d9, #3b82f6);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--preto); color: var(--branco-gelo);
  font-family: "Geist", system-ui, -apple-system, sans-serif; line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(82,20,217,.4); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* Header */
header.blog-head {
  position: sticky; top: 0; z-index: 50; background: rgba(10,10,15,.82);
  backdrop-filter: blur(14px); border-bottom: 1px solid var(--borda);
}
.blog-nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo-img { height: 34px; width: auto; display: block; }
.blog-nav-links { display: flex; align-items: center; gap: 26px; }
.blog-nav-links a { font-size: 14px; color: var(--texto-2); transition: color .2s; }
.blog-nav-links a:hover { color: #fff; }
.btn-grad {
  cursor: pointer; font-size: 14px; padding: 10px 20px; border-radius: 9px; background: var(--grad);
  color: #fff; border: none; font-weight: 600; display: inline-flex; align-items: center; gap: 8px;
  transition: filter .2s, transform .2s; font-family: inherit;
}
.btn-grad:hover { filter: brightness(1.15); transform: translateY(-2px); }
.btn-grad:active { transform: scale(.97); }
.btn-ghost {
  cursor: pointer; font-size: 14px; padding: 10px 20px; border-radius: 9px; background: transparent;
  color: var(--branco-gelo); border: 1px solid var(--borda); font-weight: 500; display: inline-flex;
  align-items: center; gap: 8px; transition: border-color .2s, background .2s; font-family: inherit;
}
.btn-ghost:hover { border-color: var(--azul); background: rgba(59,130,246,.08); }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.burger { display: none; font-size: 24px; background: none; border: none; color: #fff; cursor: pointer; }

/* Índice do blog */
.blog-hero { padding: 66px 0 40px; text-align: center; position: relative; overflow: hidden; }
.blog-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(109,40,217,.18), transparent 70%);
}
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--acento-claro);
  padding: 6px 14px; border-radius: 100px; border: 1px solid var(--borda); background: rgba(82,20,217,.1); margin-bottom: 20px; }
.blog-hero h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 800; letter-spacing: -1px; line-height: 1.1; }
.blog-hero p { color: var(--texto-2); font-size: 17px; margin: 16px auto 0; max-width: 560px; }

.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding: 20px 0 80px; }
.post-card {
  display: flex; flex-direction: column; background: var(--fundo-2); border: 1px solid var(--borda);
  border-radius: 16px; overflow: hidden; transition: transform .25s var(--ease-out), border-color .25s;
}
.post-card:hover { transform: translateY(-5px); border-color: rgba(82,20,217,.5); }
.post-card .thumb { aspect-ratio: 16/9; background: var(--grad-br); display: flex; align-items: center; justify-content: center; font-size: 40px; color: rgba(255,255,255,.85); position: relative; }
.post-card .thumb .cat { position: absolute; top: 12px; left: 12px; font-size: 11px; font-weight: 600; letter-spacing: .5px; text-transform: uppercase; background: rgba(10,10,15,.55); padding: 4px 10px; border-radius: 6px; backdrop-filter: blur(4px); }
.post-card .body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.post-card h2 { font-size: 18px; font-weight: 700; line-height: 1.3; letter-spacing: -.3px; }
.post-card p { font-size: 14px; color: var(--texto-2); margin-top: 10px; flex: 1; }
.post-card .read { font-size: 13px; color: var(--acento-claro); font-weight: 600; margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; }

/* Artigo */
article.post { padding: 44px 0 10px; }
.post-meta { font-size: 13px; color: var(--texto-3); margin-bottom: 14px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.post-cat { color: var(--acento-claro); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; font-size: 12px; }
article.post h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 800; letter-spacing: -1px; line-height: 1.12; }
.post-lead { font-size: 19px; color: var(--texto-2); margin-top: 20px; line-height: 1.6; }
.post-body { margin-top: 14px; font-size: 17px; color: #e4e4ea; }
.post-body h2 { font-size: 26px; font-weight: 800; letter-spacing: -.5px; margin: 40px 0 14px; color: #fff; }
.post-body h3 { font-size: 20px; font-weight: 700; margin: 28px 0 10px; color: #fff; }
.post-body p { margin: 0 0 18px; }
.post-body ul, .post-body ol { margin: 0 0 18px; padding-left: 22px; }
.post-body li { margin-bottom: 9px; }
.post-body strong { color: #fff; font-weight: 600; }
.post-body a { color: var(--acento-claro); text-decoration: underline; text-underline-offset: 3px; }
.post-body blockquote {
  margin: 26px 0; padding: 18px 22px; border-left: 3px solid var(--azul);
  background: rgba(59,130,246,.07); border-radius: 0 12px 12px 0; color: #fff; font-size: 18px;
}
.post-body .callout {
  margin: 26px 0; padding: 20px 22px; border: 1px solid rgba(82,20,217,.3); background: rgba(82,20,217,.08);
  border-radius: 14px; font-size: 16px;
}
.post-body .callout b { color: var(--acento-claro); }
.post-body .toc { background: var(--fundo-2); border: 1px solid var(--borda); border-radius: 12px; padding: 18px 22px; margin: 0 0 28px; font-size: 15.5px; }
.post-body .toc b { display: block; margin-bottom: 8px; font-size: 13px; letter-spacing: .5px; text-transform: uppercase; color: var(--acento-claro); }
.post-body .toc ul { margin: 0; padding-left: 18px; }
.post-body .toc li { margin-bottom: 5px; }
.post-body .toc a { color: #cfd6e6; text-decoration: none; }
.post-body .toc a:hover { color: #fff; text-decoration: underline; }

/* CTA no fim do post */
.post-cta {
  margin: 46px 0 20px; text-align: center; border-radius: 20px; padding: 40px 28px;
  background: radial-gradient(ellipse at top, rgba(109,40,217,.3), transparent 60%), var(--fundo-2);
  border: 1px solid var(--borda);
}
.post-cta h3 { font-size: 23px; font-weight: 800; letter-spacing: -.4px; }
.post-cta p { color: var(--texto-2); font-size: 15.5px; margin: 12px auto 22px; max-width: 480px; }
.post-cta .row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Relacionados */
.related { border-top: 1px solid var(--borda); padding: 40px 0 20px; }
.related h4 { font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--texto-2); margin-bottom: 18px; }
.related-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-list a { background: var(--fundo-2); border: 1px solid var(--borda); border-radius: 12px; padding: 16px 18px; font-size: 14.5px; font-weight: 600; transition: border-color .2s, transform .2s; }
.related-list a:hover { border-color: var(--azul); transform: translateY(-3px); }

/* Footer */
footer.blog-foot { border-top: 1px solid var(--borda); background: var(--fundo-2); padding: 40px 0; margin-top: 40px; }
.foot-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.foot-row p { font-size: 13px; color: var(--texto-3); }
.foot-row .socials { display: flex; gap: 10px; }
.foot-row .socials a { width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--borda); display: flex; align-items: center; justify-content: center; font-size: 17px; color: var(--texto-2); transition: all .2s; }
.foot-row .socials a:hover { color: #fff; border-color: var(--azul); }

@media (max-width: 900px) {
  .blog-nav-links { display: none; }
  .post-grid { grid-template-columns: 1fr 1fr; }
  .related-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .post-grid { grid-template-columns: 1fr; }
  .post-body { font-size: 16.5px; }
  article.post h1 { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto; } }