/* ============================================================
   HISTORETEC — Blog stylesheet (v7.4)
   Estética editorial, leitura confortável, fiel ao Dark Cinematográfico
   ============================================================ */

:root {
  --surface-void: #050816;
  --surface-canvas: #0B1020;
  --surface: #111827;
  --surface-elevated: #1E293B;
  --ink-primary: #F8FAFC;
  --ink-secondary: #E5E7EB;
  --ink-tertiary: #A1AEC0;
  --gold: #C9A55C;
  --gold-bright: #E8C874;
  --line: rgba(248, 250, 252, 0.08);
  --max-read: 720px;
  --max: 1200px;
  --radius: 16px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background: var(--surface-void);
  color: var(--ink-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.7;
}

a { color: var(--gold-bright); text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--gold); }

img { max-width: 100%; height: auto; display: block; }

/* ============ Topbar ============ */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  background: rgba(6, 8, 12, 0.78);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--max); margin: 0 auto; padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--ink-primary); font-weight: 600; letter-spacing: -0.01em;
}
.brand-mark {
  width: 32px; height: 32px; display: inline-grid; place-items: center;
  border: 1px solid var(--gold); border-radius: 6px;
  font-family: 'Source Serif Pro', serif; color: var(--gold-bright);
  font-weight: 600; font-size: 18px;
}
.topbar nav { display: flex; gap: 24px; font-size: 14px; }
.topbar nav a { color: var(--ink-secondary); }
.topbar nav a:hover { color: var(--gold-bright); }
.cta-app {
  border: 1px solid var(--gold); padding: 9px 18px; border-radius: 999px;
  font-size: 13px; color: var(--gold-bright);
}
.cta-app:hover { background: rgba(232, 200, 116, 0.08); color: var(--gold-bright); }

/* ============ Container ============ */
.container { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.read { max-width: var(--max-read); margin: 0 auto; padding: 0 32px; }

/* ============ Breadcrumbs ============ */
.breadcrumbs {
  font-size: 13px; color: var(--ink-tertiary);
  padding: 24px 0 0 0; letter-spacing: 0.01em;
}
.breadcrumbs ol { list-style: none; display: flex; gap: 8px; padding: 0; margin: 0; flex-wrap: wrap; }
.breadcrumbs li::after { content: '/'; margin-left: 8px; color: var(--ink-tertiary); opacity: 0.4; }
.breadcrumbs li:last-child::after { content: ''; }
.breadcrumbs a { color: var(--ink-tertiary); }
.breadcrumbs a:hover { color: var(--gold-bright); }
.breadcrumbs li[aria-current="page"] { color: var(--ink-secondary); }

/* ============ Blog index hero ============ */
.blog-hero {
  padding: 80px 0 56px 0; border-bottom: 1px solid var(--line); margin-bottom: 56px;
}
.blog-hero .eyebrow {
  font-family: 'Source Serif Pro', serif; font-style: italic;
  color: var(--gold-bright); font-size: 14px; letter-spacing: 0.04em;
  text-transform: uppercase;
}
.blog-hero h1 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: clamp(40px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.02em;
  margin: 16px 0 20px 0; max-width: 900px;
}
.blog-hero .lead {
  max-width: 720px; color: var(--ink-secondary);
  font-size: clamp(17px, 1.8vw, 19px); line-height: 1.6;
}

/* ============ Categories pills ============ */
.cat-bar {
  display: flex; gap: 12px; flex-wrap: wrap;
  padding: 24px 0 56px 0; border-bottom: 1px solid var(--line);
  margin-bottom: 56px;
}
.cat-bar a {
  padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--ink-secondary); font-size: 13px; letter-spacing: 0.01em;
  transition: all .25s var(--ease);
}
.cat-bar a:hover, .cat-bar a.active {
  border-color: var(--gold); color: var(--gold-bright); background: rgba(232, 200, 116, 0.04);
}

/* ============ Articles grid ============ */
.articles {
  display: grid; gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  padding-bottom: 96px;
}
.article-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px 28px 28px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
  display: flex; flex-direction: column;
}
.article-card:hover { border-color: rgba(232, 200, 116, 0.32); transform: translateY(-2px); }
.article-card .cat {
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gold-bright); margin-bottom: 12px;
}
.article-card h2 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: 22px; line-height: 1.3; letter-spacing: -0.01em;
  margin: 0 0 14px 0;
}
.article-card h2 a { color: var(--ink-primary); }
.article-card h2 a:hover { color: var(--gold-bright); }
.article-card p {
  color: var(--ink-tertiary); font-size: 15px; line-height: 1.6;
  margin: 0 0 22px 0; flex: 1;
}
.article-card .meta {
  display: flex; gap: 12px; align-items: center;
  font-size: 12px; color: var(--ink-tertiary); margin-top: auto;
}
.article-card .meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-tertiary); opacity: 0.5; }
.article-card .read-more {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 16px;
  font-size: 14px; color: var(--gold-bright);
}

/* ============ Article page ============ */
.article-hero {
  padding: 56px 0 40px 0;
}
.article-hero .cat {
  font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gold-bright); margin-bottom: 16px;
}
.article-hero h1 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: clamp(36px, 5.5vw, 56px); line-height: 1.1; letter-spacing: -0.02em;
  margin: 0 0 24px 0;
}
.article-hero .lead {
  color: var(--ink-secondary); font-size: clamp(17px, 1.8vw, 19px);
  line-height: 1.6; margin: 0 0 24px 0;
}
.article-meta {
  display: flex; gap: 12px; align-items: center;
  font-size: 13px; color: var(--ink-tertiary);
  padding-bottom: 32px; border-bottom: 1px solid var(--line);
}
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-tertiary); opacity: 0.5; }

.article-body { padding: 48px 0 80px 0; font-size: 17px; line-height: 1.85; }
.article-body p { margin: 0 0 24px 0; color: var(--ink-secondary); }
.article-body p strong { color: var(--ink-primary); font-weight: 600; }
.article-body h2 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: clamp(26px, 3vw, 32px); line-height: 1.25; letter-spacing: -0.01em;
  margin: 56px 0 20px 0; color: var(--ink-primary);
}
.article-body h3 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: clamp(20px, 2.4vw, 24px); line-height: 1.3; letter-spacing: -0.005em;
  margin: 40px 0 14px 0; color: var(--ink-primary);
}
.article-body ul, .article-body ol { padding-left: 24px; margin: 0 0 24px 0; color: var(--ink-secondary); }
.article-body li { margin-bottom: 10px; }
.article-body blockquote {
  margin: 36px 0; padding: 24px 32px;
  border-left: 3px solid var(--gold-bright); background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: 'Source Serif Pro', serif; font-style: italic;
  font-size: 19px; color: var(--ink-primary);
}
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body code {
  background: var(--surface); padding: 2px 8px; border-radius: 4px;
  font-size: 0.9em; color: var(--gold-bright);
}

/* ============ Article CTA ============ */
.article-cta {
  margin: 56px 0 0 0; padding: 40px 32px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); text-align: center;
}
.article-cta h3 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: 24px; margin: 0 0 12px 0;
}
.article-cta p { color: var(--ink-secondary); margin: 0 0 24px 0; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px;
  background: var(--gold-bright); color: #0B1020;
  font-weight: 600; font-size: 14px; letter-spacing: 0.02em;
  transition: all .25s var(--ease);
}
.btn-primary:hover { background: #FFD98A; transform: translateY(-1px); color: #0B1020; }

/* ============ Footer ============ */
footer.site {
  padding: 56px 0 40px 0; border-top: 1px solid var(--line);
  color: var(--ink-tertiary); font-size: 13px;
}
footer.site .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
footer.site nav { display: flex; gap: 20px; }
footer.site nav a { color: var(--ink-tertiary); }
footer.site nav a:hover { color: var(--gold-bright); }

/* ============ Related ============ */
.related {
  padding: 56px 0; border-top: 1px solid var(--line);
}
.related h2 {
  font-family: 'Source Serif Pro', serif; font-weight: 600;
  font-size: 24px; margin: 0 0 32px 0;
}

/* ============ Responsive ============ */
@media (max-width: 720px) {
  .topbar-inner { padding: 14px 20px; }
  .topbar nav { display: none; }
  .container, .read { padding: 0 20px; }
  .blog-hero { padding: 56px 0 40px 0; }
  .article-hero { padding: 32px 0 28px 0; }
  .article-body { padding: 32px 0 56px 0; font-size: 16px; line-height: 1.8; }
  .article-body blockquote { padding: 20px 22px; font-size: 17px; }
  .articles { grid-template-columns: 1fr; gap: 20px; }
  .article-card { padding: 24px 22px; }
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}