:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #1d4ed8;
  --tag-tech: #2563eb;
  --tag-money: #16a34a;
  --tag-travel: #db2777;
}

* { box-sizing: border-box; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.5;
}

.wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-header .wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-header nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.site-header nav a:hover { color: var(--accent); }

main { padding: 2rem 0 3rem; }

.category-title {
  font-size: 1.6rem;
  margin: 0 0 1.5rem;
}

.empty-state {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 0;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  transition: box-shadow 0.15s ease;
}

.post-card:hover { box-shadow: 0 4px 14px rgba(0,0,0,0.06); }

.post-thumb {
  width: 100%;
  aspect-ratio: 16 / 8.4;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 1rem;
  display: block;
}

.post-hero {
  width: 100%;
  aspect-ratio: 16 / 8.4;
  object-fit: cover;
  border-radius: 10px;
  margin: 1rem 0 1.5rem;
  display: block;
}

.post-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  line-height: 1.3;
}

.post-card h2 a {
  color: var(--text);
  text-decoration: none;
}

.post-card h2 a:hover { color: var(--accent); }

.post-card .meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin: 0 0 0.75rem;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.72rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.badge.tecnologia-ia { background: var(--tag-tech); }
.badge.renda-extra { background: var(--tag-money); }
.badge.viagem-economica { background: var(--tag-travel); }

.post-card p.excerpt {
  margin: 0;
  color: #374151;
}

/* Página de post individual */
.post-single {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.5rem clamp(1.5rem, 6vw, 4rem) 3rem;
  max-width: 680px;
  margin: 0 auto;
}

.post-single h1 {
  margin-top: 0;
  font-size: 1.9rem;
  line-height: 1.25;
}

.post-single p {
  font-size: 1.08rem;
  line-height: 1.75;
  margin: 0 0 1.25rem;
  color: #2a2a2a;
}

@media (prefers-color-scheme: dark) {
  .post-single p { color: #d8dade; }
}

.post-single blockquote {
  margin: 1.75rem 0 0;
  padding: 1.1rem 1.4rem;
  background: rgba(29, 78, 216, 0.06);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
}

.post-single blockquote p {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.post-single blockquote p:last-child { margin-bottom: 0; }

@media (prefers-color-scheme: dark) {
  .post-single blockquote { background: rgba(96, 165, 250, 0.1); }
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  transition: filter 0.15s ease;
}

.share-btn:hover { filter: brightness(1.08); }

.share-whatsapp { background: #25d366; }
.share-facebook { background: #1877f2; }
.share-x { background: #000; }

.post-single .source-note {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.post-single .source-note a { color: var(--accent); }

.site-footer {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 0;
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer p:first-child {
  margin-bottom: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --text: #f0f0f2;
    --text-muted: #9aa1ac;
    --border: #2a2e37;
  }
  .post-card p.excerpt { color: #d1d5db; }
}