/* ── VARIABLES ── */
:root {
  --primary: #1B2E6B;
  --primary-light: #2E4A9E;
  --accent: #E84545;
  --accent-hover: #C73333;
  --blue: #3B82F6;
  --blue-light: #EEF4FF;
  --text: #1A2332;
  --text-secondary: #6B7280;
  --bg: #FFFFFF;
  --bg-light: #F4F7FF;
  --border: #E5E7EB;
  --success: #10B981;
  --shadow: 0 4px 20px rgba(27,46,107,0.10);
  --shadow-hover: 0 8px 40px rgba(27,46,107,0.18);
  --radius: 12px;
  --radius-lg: 20px;
}

/* ── RESET + BASE ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── UTILITIES ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-tag { display: inline-block; background: var(--blue-light); color: var(--primary); font-size: 13px; font-weight: 600; letter-spacing: .5px; padding: 6px 16px; border-radius: 50px; text-transform: uppercase; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: all .25s; font-family: inherit; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232,69,69,.35); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--blue-light); }

/* ── HEADER ── */
.header { position: sticky; top: 0; z-index: 1000; background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 2px 16px rgba(0,0,0,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; }
.logo img { height: 40px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: 14px; font-weight: 500; color: var(--text); transition: color .2s; }
.nav a:hover { color: var(--primary); }
.nav a.active { color: var(--primary); font-weight: 700; border-bottom: 2px solid var(--accent); padding-bottom: 2px; }
.header-ctas { display: flex; align-items: center; gap: 12px; }
.hamburger { display: none; background: none; border: none; cursor: pointer; font-size: 22px; color: var(--primary); }
.mobile-nav { display: none; background: #fff; border-top: 1px solid var(--border); padding: 16px 24px; flex-direction: column; gap: 14px; }
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 15px; font-weight: 500; color: var(--text); padding: 8px 0; border-bottom: 1px solid var(--border); }

/* ── BREADCRUMB ── */
.breadcrumb { background: var(--bg-light); padding: 12px 0; border-bottom: 1px solid var(--border); }
.breadcrumb nav { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); flex-wrap: wrap; }
.breadcrumb nav a { color: var(--primary); }
.breadcrumb nav a:hover { text-decoration: underline; }

/* ── CATEGORY BADGE ── */
.post-category { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 50px; text-transform: uppercase; letter-spacing: .4px; }
.cat-guide    { background: var(--blue-light); color: var(--primary); }
.cat-migration{ background: #fef3c7; color: #92400e; }
.cat-strategy { background: #d1fae5; color: #065f46; }
.cat-hiring   { background: #fce7f3; color: #9d174d; }

/* ── POST META ── */
.post-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-secondary); flex-wrap: wrap; }
.post-meta-item { display: flex; align-items: center; gap: 5px; }
.post-meta-item i { font-size: 11px; color: var(--primary); }

/* ────────────────────────────────────────────────────────
   BLOG LISTING PAGE
──────────────────────────────────────────────────────── */
.blog-hero { background: linear-gradient(135deg, #0D1B42 0%, #1B2E6B 100%); color: #fff; padding: 72px 0; text-align: center; position: relative; overflow: hidden; }
.blog-hero::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px); background-size: 28px 28px; }
.blog-hero .container { position: relative; z-index: 1; }
.blog-hero h1 { font-size: clamp(28px, 5vw, 48px); font-weight: 900; margin: 14px 0 14px; }
.blog-hero p { font-size: 17px; color: rgba(255,255,255,.75); max-width: 540px; margin: 0 auto 28px; }
.blog-categories { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.blog-cat-btn { padding: 7px 18px; border-radius: 50px; font-size: 13px; font-weight: 600; cursor: pointer; border: 1.5px solid rgba(255,255,255,.3); color: rgba(255,255,255,.75); background: transparent; transition: all .2s; }
.blog-cat-btn:hover, .blog-cat-btn.active { background: #fff; color: var(--primary); border-color: #fff; }

/* Featured post */
.featured-section { padding: 64px 0 0; }
.featured-label { font-size: 13px; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.featured-card { display: grid; grid-template-columns: 1fr 1fr; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); transition: box-shadow .3s; }
.featured-card:hover { box-shadow: var(--shadow-hover); }
.featured-img { width: 100%; height: 100%; min-height: 380px; object-fit: cover; display: block; }
.featured-body { padding: 40px; display: flex; flex-direction: column; justify-content: center; background: #fff; }
.featured-title { font-size: 26px; font-weight: 800; line-height: 1.3; margin: 12px 0 14px; color: var(--text); }
.featured-title:hover { color: var(--primary); }
.featured-excerpt { font-size: 15px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 20px; }
.read-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); margin-top: 8px; transition: gap .2s; }
.read-more:hover { gap: 10px; color: var(--accent); }

/* Blog grid */
.blog-grid-section { padding: 48px 0 80px; }
.grid-heading { font-size: 20px; font-weight: 700; margin-bottom: 28px; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all .3s; display: flex; flex-direction: column; }
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.blog-card-img { width: 100%; height: 210px; object-fit: cover; display: block; }
.blog-card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.blog-card-title { font-size: 17px; font-weight: 700; line-height: 1.4; margin: 10px 0 10px; color: var(--text); }
.blog-card-title:hover { color: var(--primary); }
.blog-card-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.65; flex: 1; margin-bottom: 18px; }
.blog-card-footer { padding-top: 14px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }

/* Subscribe CTA */
.subscribe-section { background: var(--bg-light); padding: 64px 0; text-align: center; border-top: 1px solid var(--border); }
.subscribe-section h2 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
.subscribe-section p { font-size: 16px; color: var(--text-secondary); max-width: 480px; margin: 0 auto 24px; }
.subscribe-form { display: flex; gap: 10px; max-width: 440px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.subscribe-form input { flex: 1; min-width: 200px; padding: 13px 18px; border-radius: 8px; border: 1.5px solid var(--border); font-size: 14px; font-family: inherit; outline: none; }
.subscribe-form input:focus { border-color: var(--primary); }

/* ────────────────────────────────────────────────────────
   BLOG POST ARTICLE
──────────────────────────────────────────────────────── */
.article-header { padding: 48px 0 32px; }
.article-title { font-size: clamp(26px, 4vw, 44px); font-weight: 900; line-height: 1.2; margin: 14px 0 22px; }
.article-meta-bar { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; padding: 16px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin-bottom: 32px; }
.article-meta-bar .author { display: flex; align-items: center; gap: 10px; }
.article-meta-bar .author img { width: 38px; height: 38px; border-radius: 50%; }
.author-name { font-size: 14px; font-weight: 700; }
.article-hero-img { width: 100%; border-radius: var(--radius-lg); max-height: 480px; object-fit: cover; margin-bottom: 40px; }

/* Two-column layout */
.article-layout { display: grid; grid-template-columns: 1fr 340px; gap: 52px; padding-bottom: 80px; align-items: start; }
.article-body { min-width: 0; }

/* Prose styles */
.article-body h2 { font-size: 24px; font-weight: 800; margin: 40px 0 14px; color: var(--text); padding: 14px 0 14px; border-top: 3px solid var(--blue-light); }
.article-body h3 { font-size: 19px; font-weight: 700; margin: 28px 0 10px; color: var(--primary); }
.article-body p { font-size: 16px; line-height: 1.85; color: var(--text); margin-bottom: 20px; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 20px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { font-size: 16px; line-height: 1.75; color: var(--text); margin-bottom: 8px; }
.article-body strong { font-weight: 700; }
.article-body a { color: var(--primary); font-weight: 500; }
.article-body a:hover { text-decoration: underline; color: var(--accent); }
.article-body blockquote { border-left: 4px solid var(--accent); margin: 28px 0; padding: 16px 22px; background: var(--bg-light); border-radius: 0 8px 8px 0; }
.article-body blockquote p { margin: 0; font-style: italic; font-size: 17px; color: var(--text); }

/* Callout / tip box */
.callout { background: var(--blue-light); border: 1px solid rgba(59,130,246,.25); border-radius: var(--radius); padding: 18px 22px; margin: 24px 0; }
.callout-title { font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 6px; display: flex; align-items: center; gap: 7px; text-transform: uppercase; letter-spacing: .4px; }
.callout p { margin: 0; font-size: 15px; color: var(--text); line-height: 1.65; }

/* Warning box */
.warning-box { background: #fffbeb; border: 1px solid #f59e0b; border-radius: var(--radius); padding: 16px 20px; margin: 20px 0; }
.warning-box p { margin: 0; font-size: 15px; color: #78350f; }

/* Code block */
.code-block { background: #1e293b; border-radius: var(--radius); padding: 20px 24px; margin: 20px 0; overflow-x: auto; }
.code-block code { font-family: 'Courier New', Consolas, monospace; font-size: 14px; line-height: 1.6; color: #e2e8f0; white-space: pre; }

/* Check list */
.check-list { margin: 4px 0 24px; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 16px; color: var(--text); }
.check-list li i { color: var(--success); flex-shrink: 0; margin-top: 4px; font-size: 14px; }

/* Comparison table */
.compare-table { width: 100%; border-collapse: collapse; margin: 20px 0 28px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.compare-table th { background: var(--primary); color: #fff; padding: 12px 16px; text-align: left; font-size: 14px; }
.compare-table td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid var(--border); }
.compare-table tr:nth-child(even) td { background: var(--bg-light); }
.compare-table tr:last-child td { border-bottom: none; }

/* Article tags */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tag { font-size: 13px; background: var(--bg-light); border: 1px solid var(--border); color: var(--text-secondary); padding: 5px 14px; border-radius: 50px; transition: all .2s; }
.article-tag:hover { background: var(--blue-light); color: var(--primary); border-color: var(--blue); }

/* Author bio */
.author-bio { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; margin: 40px 0; display: flex; gap: 22px; align-items: flex-start; }
.author-bio img { width: 70px; height: 70px; border-radius: 50%; flex-shrink: 0; }
.author-bio-name { font-size: 16px; font-weight: 800; margin-bottom: 3px; }
.author-bio-title { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
.author-bio p { font-size: 14px; color: var(--text); line-height: 1.7; margin: 0; }

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 22px; position: sticky; top: 86px; }
.sidebar-card { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.sidebar-card-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--border); text-transform: uppercase; letter-spacing: .5px; }
.toc-list { display: flex; flex-direction: column; gap: 4px; }
.toc-list a { font-size: 13px; color: var(--text-secondary); padding: 5px 0 5px 12px; border-left: 2px solid transparent; display: block; transition: all .2s; line-height: 1.4; }
.toc-list a:hover { color: var(--primary); border-left-color: var(--primary); background: rgba(27,46,107,.04); }
.toc-list a.active { color: var(--primary); border-left-color: var(--accent); font-weight: 600; }
.sidebar-author-img { width: 52px; height: 52px; border-radius: 50%; margin-bottom: 10px; }
.sidebar-author-name { font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.sidebar-author-role { font-size: 12px; color: var(--text-secondary); margin-bottom: 10px; }
.sidebar-author-bio { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.sidebar-cta-box { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border-radius: var(--radius); padding: 24px; text-align: center; }
.sidebar-cta-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.sidebar-cta-desc { font-size: 13px; color: rgba(255,255,255,.75); line-height: 1.6; margin-bottom: 18px; }

/* Related posts */
.related-posts-section { padding: 48px 0 72px; border-top: 1px solid var(--border); }
.related-posts-section h2 { font-size: 22px; font-weight: 800; margin-bottom: 24px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .3s; }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.related-card img { width: 100%; height: 150px; object-fit: cover; display: block; }
.related-card-body { padding: 16px; }
.related-card-title { font-size: 14px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 4px; }
.related-card-title:hover { color: var(--primary); }
.related-card-date { font-size: 12px; color: var(--text-secondary); }

/* ── FOOTER ── */
.footer { background: #070E24; color: rgba(255,255,255,.75); padding: 60px 0 0; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.10); }
.footer-brand-desc { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.55); margin: 12px 0 16px; }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact a { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.6); }
.footer-contact a:hover { color: #60A5FA; }
.footer-col-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,.55); transition: color .2s; }
.footer-links a:hover { color: #60A5FA; }
.footer-social { display: flex; gap: 8px; margin-top: 16px; }
.footer-social a { width: 34px; height: 34px; background: rgba(255,255,255,.08); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.6); transition: all .2s; }
.footer-social a:hover { background: #2E4A9E; color: #fff; }
.footer-bottom { padding: 18px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: rgba(255,255,255,.4); }
.footer-bottom-links { display: flex; gap: 18px; }
.footer-bottom-links a { color: rgba(255,255,255,.4); }
.footer-bottom-links a:hover { color: #60A5FA; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr 300px; gap: 36px; }
}
@media (max-width: 900px) {
  .featured-card { grid-template-columns: 1fr; }
  .featured-img { min-height: 260px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .author-bio { flex-direction: column; }
}
@media (max-width: 640px) {
  .nav, .header-ctas { display: none; }
  .hamburger { display: block; }
  .blog-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .subscribe-form { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
}