/*
Theme Name: AC Blog Handoff
Theme URI: https://blog.acoliveirasecurity.com.br
Description: Blog premium da AC Oliveira Security – Design Handoff
Author: AC Oliveira / LabDigX
Version: 1.0.0
Text Domain: ac-blog-handoff
*/

/* ─── Base Tokens ─── */
:root {
  --bg-0:       oklch(0.13 0.02 260);
  --bg-1:       oklch(0.17 0.02 260);
  --bg-2:       oklch(0.20 0.02 260);
  --bg-3:       oklch(0.24 0.02 260);
  --line:       oklch(0.25 0.02 260);
  --line-soft:  oklch(0.22 0.015 260);
  --ink-0:      oklch(0.96 0.005 260);
  --ink-1:      oklch(0.82 0.01 260);
  --ink-2:      oklch(0.62 0.01 260);
  --ink-3:      oklch(0.45 0.01 260);
  --blue:       oklch(0.65 0.20 260);
  --blue-deep:  oklch(0.35 0.12 260);
  --blue-soft:  oklch(0.75 0.12 260);
  --blue-glow:  oklch(0.55 0.18 260 / 0.15);
  --green:      oklch(0.65 0.15 145);
  --radius:     10px;
  --radius-lg:  14px;
  --pad-x:      clamp(20px, 4vw, 80px);
  --max-w:      1280px;
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-0);
  color: var(--ink-1);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.display { font-family: 'Space Grotesk', sans-serif; }
.mono { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.section { max-width: var(--max-w); margin: 0 auto; padding: 80px var(--pad-x); }
.row { display: flex; align-items: center; }

/* ─── Nav ─── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max-w); margin: 0 auto;
  padding: 16px var(--pad-x);
  background: oklch(0.13 0.02 260 / 0.85);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 32px; height: 32px; border-radius: 6px; }
.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px; font-weight: 700;
  color: var(--ink-0); line-height: 1.15;
  display: flex; flex-direction: column;
}
.brand-name small { font-size: 9px; letter-spacing: 0.18em; font-weight: 500; color: var(--ink-3); text-transform: uppercase; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { font-size: 14px; color: var(--ink-2); transition: color .15s; }
.nav-links a:hover { color: var(--ink-0); }
.nav-right { display: flex; gap: 14px; align-items: center; }
.status-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--line);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-2);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); display: inline-block; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px; font-weight: 600;
  border: 1px solid var(--line); color: var(--ink-0);
  cursor: pointer; transition: all .15s;
}
.btn--primary { background: var(--blue); border-color: var(--blue); color: white; }
.btn--primary:hover { filter: brightness(1.12); }
.btn--lg { padding: 14px 28px; font-size: 15px; }
@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* ─── Page Header ─── */
.page-head {
  padding: 80px var(--pad-x) 56px;
  border-bottom: 1px solid var(--line);
  max-width: var(--max-w); margin: 0 auto;
  position: relative;
  background:
    radial-gradient(700px 360px at 80% 20%, var(--blue-glow), transparent 70%),
    var(--bg-0);
}
.page-head .crumb { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; margin-bottom: 12px; }
.page-head .crumb a { color: var(--ink-3); }
.page-head .crumb a:hover { color: var(--blue); }
.page-head h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02; font-weight: 600;
  letter-spacing: -0.025em; color: var(--ink-0);
  margin: 8px 0 16px; max-width: 880px;
}
.page-head p { color: var(--ink-2); font-size: 18px; max-width: 620px; margin: 0; }

/* ─── Blog Post Grid ─── */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color .15s, transform .15s;
}
.post-card:hover { border-color: var(--blue-deep); transform: translateY(-2px); }
.post-card .ph {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--bg-3), var(--bg-1));
  display: grid; place-items: center;
  border-bottom: 1px solid var(--line);
  position: relative; overflow: hidden;
}
.post-card .ph::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at 30% 20%, var(--blue-glow), transparent 70%);
}
.post-card .ph img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }
.post-card .body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.post-card .cat { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.12em; color: var(--blue); text-transform: uppercase; }
.post-card h3 { font-family: 'Space Grotesk', sans-serif; font-size: 20px; font-weight: 600; color: var(--ink-0); margin: 0; line-height: 1.25; letter-spacing: -0.01em; }
.post-card p { font-size: 14px; color: var(--ink-2); margin: 0; flex: 1; }
.post-card .meta { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--ink-3); letter-spacing: 0.06em; text-transform: uppercase; padding-top: 10px; border-top: 1px solid var(--line-soft); }

.post-card.feature { grid-column: span 3; flex-direction: row; min-height: 320px; }
.post-card.feature .ph { aspect-ratio: auto; flex: 1; border-bottom: none; border-right: 1px solid var(--line); }
.post-card.feature .body { flex: 1; padding: 36px; gap: 14px; }
.post-card.feature h3 { font-size: 32px; }
@media (max-width: 960px) { .post-grid { grid-template-columns: 1fr; } .post-card.feature { flex-direction: column; grid-column: auto; } .post-card.feature .ph { border-right: none; border-bottom: 1px solid var(--line); aspect-ratio: 16/10; } }

/* ─── Tag Filters ─── */
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.tag-btn {
  padding: 8px 16px; border: 1px solid var(--line);
  background: var(--bg-1); color: var(--ink-2);
  border-radius: 999px; font-family: inherit;
  font-size: 13px; cursor: pointer; transition: all .15s;
}
.tag-btn:hover { color: var(--ink-0); border-color: var(--ink-3); }
.tag-btn.on, .tag-btn.current-cat { background: var(--blue); color: white; border-color: var(--blue); }

/* ─── Article Layout ─── */
.two-col {
  display: grid; grid-template-columns: 1fr 320px;
  gap: 56px; max-width: 1200px; margin: 0 auto;
  padding: 64px var(--pad-x); align-items: start;
}
.two-col aside { position: sticky; top: 90px; }
.card-aside {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 22px;
}
@media (max-width: 960px) { .two-col { grid-template-columns: 1fr; } .two-col aside { position: static; } }

/* ─── Article Prose ─── */
.prose { max-width: 720px; font-size: 17px; color: var(--ink-1); line-height: 1.7; }
.prose h2 { font-family: 'Space Grotesk', sans-serif; font-size: 32px; font-weight: 600; letter-spacing: -0.02em; color: var(--ink-0); margin: 56px 0 18px; }
.prose h3 { font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 600; color: var(--ink-0); margin: 36px 0 14px; }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { padding-left: 24px; margin: 0 0 22px; }
.prose li { margin: 8px 0; }
.prose blockquote {
  border-left: 3px solid var(--blue); padding: 10px 0 10px 22px;
  margin: 26px 0; color: var(--ink-0);
  font-family: 'Space Grotesk', sans-serif; font-size: 22px; line-height: 1.4;
}
.prose strong { color: var(--ink-0); }
.prose a { color: var(--blue); border-bottom: 1px solid var(--blue-deep); }
.prose a:hover { border-color: var(--blue); }
.prose img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); margin: 26px 0; }
.prose code { background: var(--bg-2); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; color: var(--blue-soft); }
.prose hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }

/* ─── Article Meta ─── */
.article-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.article-meta .av { width: 36px; height: 36px; border-radius: 50%; background: var(--bg-3); border: 1px solid var(--line); }
.article-meta .author { font-size: 14px; color: var(--ink-0); font-weight: 600; }
.article-meta .author small { display: block; font-size: 11px; color: var(--ink-3); font-weight: 400; }
.article-meta .sep { width: 1px; height: 24px; background: var(--line); }
.article-meta .pill { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; color: var(--ink-2); text-transform: uppercase; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.article-meta .pill:hover { color: var(--ink-0); border-color: var(--ink-3); }

/* ─── TOC Sidebar ─── */
.toc { display: flex; flex-direction: column; gap: 4px; }
.toc a { font-size: 13px; color: var(--ink-2); padding: 6px 0; border-left: 2px solid var(--line); padding-left: 12px; transition: all .15s; }
.toc a:hover { color: var(--ink-0); border-color: var(--blue); }

/* ─── CTA Band ─── */
.cta-band {
  border-top: 1px solid var(--line);
  background: radial-gradient(800px 400px at 50% 0%, var(--blue-glow), transparent 70%), var(--bg-0);
}
.cta-band-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 80px var(--pad-x);
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.cta-band h2 { font-family: 'Space Grotesk', sans-serif; font-size: clamp(32px, 4vw, 48px); font-weight: 600; color: var(--ink-0); margin: 10px 0 12px; letter-spacing: -0.02em; }
.cta-band p { color: var(--ink-2); font-size: 16px; }
.lead-form { display: flex; flex-direction: column; gap: 14px; }
.lead-form .label { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; margin-bottom: 4px; }
.lead-form input {
  background: var(--bg-1); border: 1px solid var(--line); border-radius: 8px;
  padding: 14px 16px; color: var(--ink-0); font-size: 15px; width: 100%;
}
.lead-form input:focus { outline: none; border-color: var(--blue); }
@media (max-width: 768px) { .cta-band-inner { grid-template-columns: 1fr; } }

/* ─── Footer ─── */
.foot {
  border-top: 1px solid var(--line);
  max-width: var(--max-w); margin: 0 auto;
  padding: 56px var(--pad-x) 28px;
}
.foot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 40px; }
.foot-grid h4 { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; }
.foot-grid ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.foot-grid a { font-size: 14px; color: var(--ink-2); transition: color .15s; }
.foot-grid a:hover { color: var(--ink-0); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; border-top: 1px solid var(--line); }
.foot-bottom .mono { font-size: 11px; }
@media (max-width: 768px) { .foot-grid { grid-template-columns: 1fr; } }

/* ─── Floating WhatsApp ─── */
.fab {
  position: fixed; bottom: 24px; right: 24px;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--green); color: white;
  display: grid; place-items: center;
  box-shadow: 0 10px 30px oklch(0.65 0.15 145 / 0.4);
  z-index: 40; cursor: pointer; transition: transform .15s;
}
.fab:hover { transform: scale(1.06); }

/* ─── Pagination ─── */
.pagination {
  display: flex; justify-content: center; gap: 8px;
  margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--line);
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 8px;
  border: 1px solid var(--line); font-size: 14px;
  color: var(--ink-2); transition: all .15s;
}
.pagination a:hover { border-color: var(--blue); color: var(--ink-0); }
.pagination .current { background: var(--blue); border-color: var(--blue); color: white; }

/* ─── Related Posts ─── */
.related-section { border-top: 1px solid var(--line); }
.sec-head { display: flex; justify-content: space-between; align-items: end; margin-bottom: 32px; flex-wrap: wrap; gap: 16px; }