/* Blog: estilos compartilhados (posts + index) — segue o design system do site */
:root {
  --ink: #101526;
  --ink-soft: #5a647d;
  --ink-mute: #8a93ab;
  --accent: #0e5ee0;
  --accent-2: #7a5cff;
  --accent-dark: #0a46a8;
  --bg: #ffffff;
  --bg-soft: #f4f6fb;
  --bg-dark: #0c1226;
  --line: #e4e8f2;
  --line-dark: rgba(255,255,255,0.12);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 40px rgba(16,21,38,0.08);
  --shadow-lg: 0 24px 70px rgba(16,21,38,0.16);
  --font-head: "Fraunces", Georgia, serif;
  --font-body: "Manrope", -apple-system, "Segoe UI", Roboto, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--ink); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; letter-spacing: -0.01em; }
.wrap { max-width: 900px; margin: 0 auto; padding: 0 24px; }
a { color: var(--accent); }

.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.9); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1120px; }
.brand { font-family: var(--font-head); font-weight: 700; font-size: 1.12rem; text-decoration: none; color: var(--ink); }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--ink-soft); font-size: 0.92rem; font-weight: 500; }
.nav-links a:hover { color: var(--ink); }
.btn { display: inline-block; background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 12px; font-weight: 600; font-size: 0.92rem; text-decoration: none; transition: transform .2s var(--ease), box-shadow .2s var(--ease); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(16,21,38,.18); }
.btn-wa { background: #22c55e; color: #fff; }
.btn-wa:hover { background: #16a34a; color: #fff; box-shadow: 0 10px 24px rgba(34,197,94,.3); }

/* Post */
.post-head { padding: 72px 0 40px; background: radial-gradient(60% 70% at 90% 0%, rgba(122,92,255,0.08), transparent 60%), linear-gradient(180deg, var(--bg-soft), var(--bg)); }
.post-head .crumbs { font-size: 0.85rem; color: var(--ink-mute); margin-bottom: 18px; }
.post-head .crumbs a { color: var(--ink-mute); text-decoration: none; }
.post-head .crumbs a:hover { color: var(--accent); }
.post-head h1 { font-size: clamp(1.8rem, 3.8vw, 2.6rem); line-height: 1.18; max-width: 760px; }
.post-head .meta { margin-top: 20px; display: flex; gap: 16px; align-items: center; color: var(--ink-soft); font-size: 0.9rem; flex-wrap: wrap; }
.post-head .meta .author { display: flex; align-items: center; gap: 10px; }
.post-head .meta .avatar { width: 38px; height: 38px; border-radius: 50%; object-fit: cover; }

.post-body { padding: 48px 0 64px; }
.post-body p { margin-bottom: 20px; color: var(--ink); font-size: 1.02rem; }
.post-body h2 { font-size: 1.5rem; margin: 36px 0 14px; }
.post-body h3 { font-size: 1.2rem; margin: 28px 0 10px; }
.post-body ul, .post-body ol { margin: 0 0 20px 24px; color: var(--ink); }
.post-body li { margin-bottom: 8px; }
.post-body strong { font-weight: 700; }
.post-body blockquote { border-left: 3px solid var(--accent); padding: 8px 20px; margin: 24px 0; color: var(--ink-soft); font-style: italic; }
.post-body a { text-decoration: underline; text-underline-offset: 3px; }

.post-cta { margin: 56px 0 0; background: var(--bg-dark); color: #fff; border-radius: var(--radius); padding: 40px 34px; text-align: center; }
.post-cta h3 { color: #fff; margin-bottom: 8px; }
.post-cta p { color: rgba(255,255,255,0.7); margin-bottom: 20px; }
.post-cta .btn { margin: 6px 6px; }

/* Author box */
.author-box { display: flex; gap: 18px; align-items: center; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 26px; margin: 32px 0 0; }
.author-box img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.author-box h4 { font-family: var(--font-body); font-size: 1rem; }
.author-box p { font-size: 0.9rem; color: var(--ink-soft); margin-top: 4px; }

/* Post hero image */
.post-featured { margin-bottom: 40px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.post-featured img { width: 100%; height: auto; display: block; object-fit: cover; max-height: 460px; }

footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 44px 0; font-size: 0.86rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; max-width: 1120px; }
footer strong { color: #fff; font-family: var(--font-head); }
footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
footer a:hover { color: #fff; }

@media (max-width: 720px) {
  .nav-links a:not(.btn) { display: none; }
  .post-head { padding: 48px 0 28px; }
  .post-body { padding: 32px 0 48px; }
  .author-box { flex-direction: column; text-align: center; }
}