*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#06060f;--surface:#0e0e1c;--surface-2:#151528;
  --border:rgba(255,255,255,0.08);--text:#f1f1f5;--muted:rgba(255,255,255,0.45);
  --indigo:#6c63ff;--indigo-dark:#574fd6;--indigo-glow:rgba(108,99,255,0.25);
  --green:#22c55e;--article-max:740px;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}

/* ── Nav ── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;height:64px;
  background:rgba(6,6,15,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
}
.nav-back{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;transition:color .15s}
.nav-back:hover{color:var(--text)}
.nav-logo{font-size:15px;font-weight:800}
.nav-logo .em{color:var(--indigo)}
.nav-cta{
  background:var(--indigo);color:#fff;padding:8px 18px;border-radius:8px;
  font-size:13px;font-weight:700;transition:all .2s;
  box-shadow:0 0 20px var(--indigo-glow);
}
.nav-cta:hover{background:var(--indigo-dark);transform:translateY(-1px)}

/* ── Breadcrumb nav inside articles — resets fixed page-nav styles ── */
nav.breadcrumb{
  position:static;height:auto;
  background:none;backdrop-filter:none;-webkit-backdrop-filter:none;
  border:none;padding:0;margin-bottom:16px;
  justify-content:flex-start;gap:6px;
  font-size:13px;color:var(--muted);
}
nav.breadcrumb a{color:var(--muted);transition:color .15s}
nav.breadcrumb a:hover{color:var(--text)}

/* ── Blog Index Hero ── */
.blog-hero{
  padding:120px 40px 64px;max-width:1100px;margin:0 auto;
}
.blog-hero-eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--indigo);margin-bottom:12px}
.blog-hero h1{font-size:clamp(32px,4vw,52px);font-weight:900;letter-spacing:-2.5px;line-height:1.05;margin-bottom:16px}
.blog-hero h1 .grad{
  background:linear-gradient(135deg,var(--indigo),#a78bfa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.blog-hero-sub{font-size:17px;color:var(--muted);max-width:520px;line-height:1.7}

/* ── Category pill on index ── */
.category-pills{display:flex;gap:10px;flex-wrap:wrap;margin:40px 40px 0;max-width:1100px;margin-left:auto;margin-right:auto}
.cat-pill{
  padding:7px 16px;border-radius:20px;font-size:13px;font-weight:600;
  border:1px solid var(--border);color:var(--muted);transition:all .2s;cursor:pointer;
}
.cat-pill:hover,.cat-pill.active{
  border-color:var(--indigo);color:var(--indigo);background:rgba(108,99,255,0.08);
}

/* ── Post grid ── */
.post-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:1100px;margin:40px auto 80px;padding:0 40px;
}
.post-card{
  background:var(--surface);border:1px solid var(--border);border-radius:20px;
  overflow:hidden;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(108,99,255,0.12)}
.post-card-img{
  width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);
  display:block;
}
.post-card-img-placeholder{
  width:100%;aspect-ratio:16/9;background:linear-gradient(160deg,#0d0b1e,#12103a);
  display:flex;align-items:center;justify-content:center;font-size:32px;
}
.post-card-body{padding:24px;flex:1;display:flex;flex-direction:column;gap:12px}
.post-card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.post-cat-badge{
  font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;
  color:var(--indigo);background:rgba(108,99,255,0.1);border:1px solid rgba(108,99,255,0.2);
  padding:3px 10px;border-radius:20px;
}
.post-read-time{font-size:12px;color:var(--muted)}
.post-card h2{font-size:16px;font-weight:800;letter-spacing:-.5px;line-height:1.3}
.post-card p{font-size:13px;color:var(--muted);line-height:1.65}
.post-card-link{
  font-size:13px;font-weight:600;color:var(--indigo);
  display:inline-flex;align-items:center;gap:4px;margin-top:12px;transition:gap .15s;
}
.post-card:hover .post-card-link{gap:8px}

/* ── Category hero (product blog index) ── */
.cat-hero{
  padding:120px 40px 48px;max-width:1100px;margin:0 auto;
  display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center;
}
.cat-hero-back{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;margin-bottom:16px;transition:color .15s}
.cat-hero-back:hover{color:var(--text)}
.cat-hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(108,99,255,0.12);border:1px solid rgba(108,99,255,0.25);
  color:var(--indigo);font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:20px;margin-bottom:16px;
}
.cat-hero h1{font-size:clamp(28px,3.5vw,44px);font-weight:900;letter-spacing:-2px;line-height:1.08;margin-bottom:12px}
.cat-hero-desc{font-size:16px;color:var(--muted);max-width:480px;line-height:1.7}
.cat-hero-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--indigo);color:#fff;padding:14px 28px;border-radius:10px;
  font-size:15px;font-weight:700;transition:all .2s;white-space:nowrap;
  box-shadow:0 4px 24px var(--indigo-glow);
}
.cat-hero-cta:hover{background:var(--indigo-dark);transform:translateY(-2px)}

/* ── Table of contents ── */
.toc{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:20px 24px;margin:0 0 40px;
}
.toc-title{
  font-size:11px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--muted);margin-bottom:14px;
}
.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.toc li{margin:0}
.toc a{font-size:14px;color:rgba(255,255,255,0.55);transition:color .15s;border:none}
.toc a:hover{color:var(--indigo)}

/* ── Article layout ── */
.article-wrap{max-width:var(--article-max);margin:0 auto;padding:100px 24px 80px}

.article-header{margin-bottom:40px}
.article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
.article-cat{
  font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;
  color:var(--indigo);background:rgba(108,99,255,0.1);border:1px solid rgba(108,99,255,0.2);
  padding:3px 10px;border-radius:20px;
}
.article-date,.article-time{font-size:13px;color:var(--muted)}
.article-header h1{
  font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-2px;line-height:1.1;margin-bottom:12px;
}
.article-byline{font-size:13px;color:rgba(255,255,255,0.35);margin-bottom:20px;letter-spacing:.1px}
.article-byline strong{color:rgba(255,255,255,0.5);font-weight:600}
.article-byline a{color:rgba(255,255,255,0.4);border-bottom:1px solid rgba(255,255,255,0.1);transition:color .15s}
.article-byline a:hover{color:rgba(255,255,255,0.6)}
.article-lead{font-size:18px;color:var(--muted);line-height:1.7;margin-bottom:32px}
.article-hero-img{
  width:100%;border-radius:16px;aspect-ratio:16/9;object-fit:cover;
  border:1px solid var(--border);background:var(--surface-2);
  display:block;margin-bottom:40px;
}
.article-hero-placeholder{
  width:100%;border-radius:16px;aspect-ratio:16/9;
  background:linear-gradient(160deg,#0d0b1e,#12103a,#0b1628);
  border:1px solid rgba(108,99,255,0.15);
  display:flex;align-items:center;justify-content:center;font-size:48px;
  margin-bottom:40px;
}

/* ── Article body typography ── */
.article-body{font-size:16px;line-height:1.8;color:rgba(255,255,255,0.85)}
.article-body h2{
  font-size:24px;font-weight:800;letter-spacing:-1px;margin:48px 0 16px;color:var(--text);
}
.article-body h3{
  font-size:18px;font-weight:700;letter-spacing:-.5px;margin:32px 0 12px;color:var(--text);
}
.article-body p{margin-bottom:20px}
.article-body ul,.article-body ol{margin:0 0 20px 24px}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--text);font-weight:700}
.article-body code{
  background:rgba(108,99,255,0.12);color:var(--indigo);
  padding:2px 8px;border-radius:5px;font-size:14px;font-family:monospace;
}
.article-body pre{
  background:var(--surface);border:1px solid var(--border);
  border-radius:12px;padding:20px 24px;margin:24px 0;overflow-x:auto;
}
.article-body pre code{background:transparent;color:var(--text);font-size:14px;padding:0}
.article-body blockquote{
  border-left:3px solid var(--indigo);padding:16px 20px;
  background:rgba(108,99,255,0.06);border-radius:0 10px 10px 0;
  margin:24px 0;font-style:italic;color:var(--muted);
}
.article-body a{color:var(--indigo);border-bottom:1px solid rgba(108,99,255,0.3);transition:border-color .15s}
.article-body a:hover{border-bottom-color:var(--indigo)}
.article-body hr{border:none;border-top:1px solid var(--border);margin:40px 0}

/* ── Step boxes ── */
.step-box{
  background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:24px 28px;margin:24px 0;display:flex;gap:20px;align-items:flex-start;
}
.step-num-circle{
  width:36px;height:36px;border-radius:50%;
  background:rgba(108,99,255,0.12);border:1px solid rgba(108,99,255,0.3);
  color:var(--indigo);font-size:14px;font-weight:800;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px;
}
.step-content h4{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--text)}
.step-content p{font-size:14px;color:var(--muted);margin:0;line-height:1.65}

/* ── Callout ── */
.callout{
  background:rgba(108,99,255,0.08);border:1px solid rgba(108,99,255,0.2);
  border-radius:12px;padding:20px 24px;margin:24px 0;
}
.callout strong{color:var(--indigo)}

/* ── Tag chips in body ── */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-chip{
  background:rgba(108,99,255,0.1);border:1px solid rgba(108,99,255,0.2);
  color:var(--indigo);font-size:12px;font-weight:600;font-family:monospace;
  padding:5px 12px;border-radius:7px;
}

/* ── Article CTA ── */
.article-cta{
  background:linear-gradient(160deg,rgba(108,99,255,0.1),rgba(108,99,255,0.03));
  border:1px solid rgba(108,99,255,0.2);border-radius:20px;
  padding:40px;margin:56px 0;text-align:center;
}
.article-cta h3{font-size:22px;font-weight:800;letter-spacing:-.5px;margin-bottom:8px}
.article-cta p{font-size:15px;color:var(--muted);margin-bottom:24px}
.article-cta .cta-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--indigo);color:#fff;padding:14px 32px;border-radius:10px;
  font-size:15px;font-weight:700;transition:all .2s;
  box-shadow:0 4px 24px var(--indigo-glow);
}
.article-cta .cta-btn:hover{background:var(--indigo-dark);transform:translateY(-2px)}
.article-cta .cta-sub{font-size:12px;color:var(--muted);margin-top:12px}

/* ── Related posts ── */
.related-section,.related-posts{border-top:1px solid var(--border);padding-top:48px;margin-top:56px}
.related-section h3,.related-posts h2{font-size:18px;font-weight:800;letter-spacing:-.5px;margin-bottom:24px}
.related-badge{font-size:11px;font-weight:700;margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px;padding:3px 8px;border-radius:20px;display:inline-block;border:1px solid transparent}
.related-title{font-size:14px;font-weight:700;line-height:1.4;color:var(--text)}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.related-card{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:20px;transition:transform .2s,box-shadow .2s;
}
.related-card:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(108,99,255,0.1)}
.related-card .rc-cat{font-size:11px;font-weight:700;color:var(--indigo);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}
.related-card h4{font-size:14px;font-weight:700;line-height:1.4;color:var(--text)}

/* ── Footer ── */
footer{border-top:1px solid var(--border);padding:40px 48px 32px}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-logo{font-size:14px;font-weight:800;color:var(--muted)}
.footer-logo span{color:var(--indigo)}
.footer-links{display:flex;gap:20px}
.footer-links a{font-size:12px;color:rgba(255,255,255,0.35);transition:color .15s}
.footer-links a:hover{color:var(--muted)}

/* ── Responsive ── */
@media(max-width:900px){
  nav{padding:0 24px}
  .blog-hero{padding:100px 24px 48px}
  .post-grid{grid-template-columns:repeat(2,1fr);padding:0 24px}
  .cat-hero{grid-template-columns:1fr;padding:100px 24px 40px}
  .cat-hero-cta{display:none}
  .category-pills{padding:0 24px}
  .related-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .post-grid{grid-template-columns:1fr}
  .article-wrap{padding:90px 20px 60px}
}

/* ── Share bar ── */
.share-bar{display:flex;align-items:center;gap:10px;padding:24px 0;border-top:1px solid rgba(255,255,255,0.07);margin-top:32px;flex-wrap:wrap}
.share-bar-label{font-size:11px;font-weight:700;color:rgba(255,255,255,0.3);text-transform:uppercase;letter-spacing:1.5px;margin-right:4px;flex-shrink:0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;font-size:12px;font-weight:700;border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.04);color:rgba(255,255,255,0.55);cursor:pointer;transition:all .15s;text-decoration:none;font-family:inherit}
.share-btn:hover{background:rgba(255,255,255,0.09);color:#fff;border-color:rgba(255,255,255,0.2);transform:translateY(-1px)}