/* Blog · Zarkio Psi Design System (versão clara) — usado em /blog, nos posts e na prévia do /admin */
:root {
  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
  --white:    #FFFFFF;
  --surface:  #F5F5F2;
  --offwhite: #E7E7E4;
  --ink:      #221F1A;
  --green:    #39443A;
  --moss:     #777565;
  --beige:    #B8AC9D;
  --text-2:   rgba(34,31,26,0.72);
  --text-3:   rgba(34,31,26,0.5);
  --line:     rgba(34,31,26,0.12);
  --cta:       linear-gradient(90deg, var(--green), var(--beige));
  --cta-hover: linear-gradient(90deg, #4A574B, var(--moss));
  --radius:    4px;
  --radius-lg: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Roboto', ui-sans-serif, system-ui, sans-serif;
  background: var(--white); color: var(--ink);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 760px; }

.overline {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--moss);
}
.overline::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* Botão (igual ao da LP) */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.75rem;
  padding: 1.05rem 1.9rem; border: 0; border-radius: var(--radius);
  background: var(--cta); color: var(--white);
  font: inherit; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  cursor: pointer; box-shadow: 0 10px 30px -12px rgba(57,68,58,0.55);
  transition: transform 0.3s var(--ease-apple), box-shadow 0.3s var(--ease-apple);
}
.btn::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--cta-hover); opacity: 0; transition: opacity 0.3s var(--ease-apple); }
.btn:hover { transform: translateY(-2px); }
.btn:hover::before { opacity: 1; }
.btn:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.btn svg { width: 1rem; height: 1rem; }
.btn--light { background: linear-gradient(90deg, var(--beige), var(--offwhite)); color: var(--green); box-shadow: 0 16px 40px -16px rgba(0,0,0,0.5); }
.btn--light::before { background: linear-gradient(90deg, var(--offwhite), var(--white)); }
.btn--sm { padding: 0.75rem 1.2rem; font-size: 0.7rem; }

/* Topo */
.topbar { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,0.88); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.topbar-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 4.5rem; }
.topbar img { width: 120px; height: auto; }
.topbar nav { display: flex; align-items: center; gap: 1.75rem; }
.topbar nav a:not(.btn) { font-size: 0.8rem; font-weight: 500; color: var(--text-2); transition: color 0.2s; }
.topbar nav a:not(.btn):hover, .topbar nav a[aria-current] { color: var(--green); }
.topbar .btn .lbl-short { display: none; }

/* Cabeçalho da listagem */
.blog-hero { padding-top: 5rem; padding-bottom: 3rem; }
.blog-hero h1 { margin-top: 1.25rem; font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900; letter-spacing: -0.035em; line-height: 1.02; }
.blog-hero h1 .soft { font-weight: 300; }
.blog-hero p { margin-top: 1.25rem; max-width: 36rem; font-size: 1.1rem; line-height: 1.6; font-weight: 300; color: var(--text-2); }

/* Cards */
.posts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem 1.5rem; padding-bottom: 6rem; }
.post-card { display: flex; flex-direction: column; }
.post-card-img { aspect-ratio: 16 / 10; border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.post-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease-apple); }
.post-card:hover .post-card-img img { transform: scale(1.04); }
.post-meta { margin-top: 1.25rem; font-size: 0.75rem; color: var(--text-3); letter-spacing: 0.02em; }
.post-card h2, .post-card h3 { margin-top: 0.5rem; font-size: 1.3rem; font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; transition: color 0.2s; }
.post-card:hover h2, .post-card:hover h3 { color: var(--green); }
.post-card p { margin-top: 0.6rem; font-size: 0.95rem; line-height: 1.6; font-weight: 300; color: var(--text-2); }
.post-card--featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: center; }
.post-card--featured .post-card-img { aspect-ratio: 16 / 9; }
.post-card--featured h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1.1; }
.post-card--featured p { font-size: 1.05rem; }
.empty { padding: 4rem 2rem 8rem; text-align: center; color: var(--text-2); font-weight: 300; font-size: 1.1rem; }

/* Post */
.article-head { padding-top: 4rem; padding-bottom: 2.5rem; }
.back { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; font-weight: 500; color: var(--moss); margin-bottom: 2rem; }
.back:hover { color: var(--green); }
.article-head h1 { margin-top: 1rem; font-size: clamp(2.1rem, 4.6vw, 3.25rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1.08; }
.article-head .post-meta { margin-top: 1.25rem; font-size: 0.85rem; }
.article-cover { margin-bottom: 3rem; }
.article-cover img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-lg); background: var(--surface); }
.article-cover figcaption { margin-top: 0.6rem; font-size: 0.78rem; line-height: 1.5; color: var(--text-3); }
.article-cover figcaption a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.article-cover figcaption a:hover { color: var(--green); }

.prose { font-size: 1.125rem; line-height: 1.8; font-weight: 300; color: var(--ink); }
.prose > * + * { margin-top: 1.4em; }
.prose h2 { margin-top: 2.2em; font-size: 1.75rem; font-weight: 900; letter-spacing: -0.02em; line-height: 1.2; }
.prose h3 { margin-top: 1.8em; font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.3; }
.prose h2 + *, .prose h3 + * { margin-top: 0.8em; }
.prose strong { font-weight: 700; }
.prose a { color: var(--green); font-weight: 500; text-decoration: underline; text-decoration-color: var(--beige); text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: 0.5em; }
.prose li::marker { color: var(--moss); }
.prose blockquote { padding: 0.25em 0 0.25em 1.25em; border-left: 3px solid var(--beige); font-size: 1.25rem; line-height: 1.6; color: var(--green); font-style: italic; }

/* CTA no fim do post */
.post-cta { position: relative; overflow: hidden; margin: 4.5rem 0 5rem; padding: 3rem; border-radius: var(--radius-lg); background: var(--green); color: var(--offwhite); text-align: center; }
.post-cta::before { content: ''; position: absolute; width: 40rem; height: 40rem; left: 50%; top: -22rem; transform: translateX(-50%); background: radial-gradient(circle, rgba(184,172,157,0.22), transparent 60%); pointer-events: none; }
.post-cta > * { position: relative; }
.post-cta .overline { color: var(--beige); }
.post-cta h2 { margin-top: 1rem; font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 900; letter-spacing: -0.025em; line-height: 1.15; color: var(--white); }
.post-cta p { margin: 1rem auto 2rem; max-width: 30rem; font-weight: 300; line-height: 1.6; color: rgba(231,231,228,0.8); }

.related { padding: 4.5rem 0 6rem; background: var(--surface); }
.related h2.related-title { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em; margin-bottom: 2rem; }
.related .posts { padding-bottom: 0; }

/* Rodapé */
footer { background: var(--ink); color: rgba(231,231,228,0.55); padding: 2.25rem 0; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.footer-row img { width: 110px; height: auto; opacity: 0.9; }
.footer-row p { font-size: 0.75rem; font-weight: 300; letter-spacing: 0.02em; }
.footer-nav { display: flex; gap: 1.5rem; }
.footer-nav a { font-size: 0.8rem; font-weight: 500; color: rgba(231,231,228,0.8); transition: color 0.2s; }
.footer-nav a:hover { color: var(--white); }

@media (max-width: 900px) {
  .posts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .post-card--featured { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 767px) {
  .container { padding: 0 1rem; }
  .topbar-row { height: 4rem; }
  .topbar img { width: 100px; }
  .topbar nav { gap: 1rem; }
  .topbar .btn .lbl-long { display: none; }
  .topbar .btn .lbl-short { display: inline; }
  .blog-hero { padding-top: 3rem; padding-bottom: 2rem; }
  .posts { grid-template-columns: 1fr; gap: 2.5rem; padding-bottom: 4rem; }
  .article-head { padding-top: 2.5rem; padding-bottom: 2rem; }
  .article-cover { margin-bottom: 2rem; }
  .article-cover img { border-radius: 8px; }
  .prose { font-size: 1.05rem; }
  .prose h2 { font-size: 1.45rem; }
  .post-cta { padding: 2.25rem 1.25rem; margin: 3.5rem 0 4rem; }
  .post-cta .btn { width: 100%; padding: 1.05rem 1rem; letter-spacing: 0.08em; font-size: 0.74rem; }
  .footer-row { flex-direction: column; text-align: center; }
}