/* ═══ VISIAI Blog — Shared Styles ═══ */

:root {
  --bg:#07090f; --bg2:#0c0f1a; --bg3:#111520;
  --border:#1a2035; --border2:#242d45;
  --accent:#4f8eff; --green:#22c55e; --red:#ef4444; --amber:#f59e0b;
  --text:#e8edf5; --muted:#5a6a8a; --muted2:#8899bb;
  --mono:'JetBrains Mono',monospace;
  --sans:'Bricolage Grotesque',sans-serif;
  --body:'DM Sans',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text);font-family:var(--body);overflow-x:hidden;line-height:1.6;}
body::after{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.025'/%3E%3C/svg%3E");pointer-events:none;z-index:9998;}

/* ─── NAV ─── */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:18px 48px;background:rgba(7,9,15,0.9);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);}
.logo{font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:0.12em;color:var(--accent);text-decoration:none;}
.logo em{color:var(--text);font-style:normal;}
.nav-links{display:flex;gap:32px;list-style:none;}
.nav-links a{font-family:var(--mono);font-size:11px;color:var(--muted);text-decoration:none;letter-spacing:0.08em;text-transform:uppercase;transition:color 0.2s;}
.nav-links a:hover,.nav-links a.active{color:var(--accent);}
.nav-cta{font-family:var(--mono);font-size:12px;padding:10px 22px;background:var(--accent);color:#fff;border:none;cursor:pointer;letter-spacing:0.06em;text-transform:uppercase;font-weight:600;text-decoration:none;transition:opacity 0.2s,transform 0.2s;border-radius:2px;}
.nav-cta:hover{opacity:0.85;transform:translateY(-1px);}

/* ─── BLOG HEADER ─── */
.blog-header{padding:140px 48px 60px;text-align:center;max-width:800px;margin:0 auto;}
.blog-header h1{font-family:var(--sans);font-size:48px;font-weight:800;letter-spacing:-0.03em;margin-bottom:16px;}
.blog-header h1 span{color:var(--accent);}
.blog-header p{font-size:18px;color:var(--muted2);line-height:1.7;max-width:600px;margin:0 auto;}

/* ─── CATEGORY FILTER ─── */
.cat-filter{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;padding:0 48px 48px;max-width:900px;margin:0 auto;}
.cat-pill{font-family:var(--mono);font-size:11px;padding:8px 18px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;letter-spacing:0.06em;text-transform:uppercase;border-radius:100px;transition:all 0.2s;}
.cat-pill:hover,.cat-pill.active{border-color:var(--accent);color:var(--accent);background:rgba(79,142,255,0.08);}

/* ─── BLOG GRID ─── */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:0 48px 80px;max-width:1200px;margin:0 auto;}
.blog-card{background:var(--bg2);border:1px solid var(--border);border-radius:6px;padding:32px;transition:background 0.3s,border-color 0.3s,transform 0.3s;text-decoration:none;display:flex;flex-direction:column;}
.blog-card:hover{background:var(--bg3);border-color:var(--border2);transform:translateY(-2px);}
.blog-card .card-cat{font-family:var(--mono);font-size:10px;color:var(--accent);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:12px;}
.blog-card h3{font-family:var(--sans);font-size:19px;font-weight:700;color:var(--text);line-height:1.35;margin-bottom:12px;letter-spacing:-0.01em;}
.blog-card .card-excerpt{font-size:14px;color:var(--muted2);line-height:1.65;margin-bottom:auto;padding-bottom:20px;}
.blog-card .card-meta{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.06em;display:flex;gap:16px;border-top:1px solid var(--border);padding-top:16px;margin-top:auto;}

/* ─── ARTICLE HEADER ─── */
.article-header{padding:140px 24px 48px;text-align:center;max-width:800px;margin:0 auto;}
.article-header .art-cat{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:20px;display:block;}
.article-header h1{font-family:var(--sans);font-size:42px;font-weight:800;letter-spacing:-0.03em;line-height:1.15;margin-bottom:20px;}
.article-header .art-meta{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:0.06em;display:flex;gap:20px;justify-content:center;}

/* ─── ARTICLE PROSE ─── */
.prose{max-width:740px;margin:0 auto;padding:48px 24px 80px;font-size:17px;color:var(--muted2);line-height:1.85;}
.prose h2{font-family:var(--sans);font-size:28px;font-weight:700;color:var(--text);margin:56px 0 20px;letter-spacing:-0.01em;line-height:1.25;}
.prose h3{font-family:var(--sans);font-size:21px;font-weight:700;color:var(--text);margin:40px 0 16px;line-height:1.3;}
.prose p{margin-bottom:24px;}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{opacity:0.8;}
.prose strong{color:var(--text);font-weight:600;}
.prose ul,.prose ol{margin:0 0 24px 24px;color:var(--muted2);}
.prose li{margin-bottom:10px;line-height:1.75;}
.prose blockquote{border-left:3px solid var(--accent);padding:16px 0 16px 24px;margin:32px 0;color:var(--text);font-style:italic;font-size:18px;line-height:1.7;background:rgba(79,142,255,0.04);border-radius:0 6px 6px 0;}
.prose code{font-family:var(--mono);font-size:14px;background:var(--bg3);padding:2px 8px;border-radius:3px;border:1px solid var(--border);color:var(--accent);}
.prose pre{background:var(--bg2);border:1px solid var(--border);border-radius:6px;padding:24px;overflow-x:auto;margin:0 0 24px;font-size:14px;line-height:1.6;}
.prose pre code{background:none;border:none;padding:0;color:var(--text);}
.prose img{max-width:100%;border-radius:8px;margin:24px 0;border:1px solid var(--border);}
.prose .info-box{background:rgba(79,142,255,0.06);border:1px solid rgba(79,142,255,0.2);border-radius:8px;padding:24px;margin:32px 0;font-size:15px;line-height:1.7;}
.prose .info-box strong{color:var(--accent);}
.prose .table-wrap{overflow-x:auto;margin:24px 0;}
.prose table{width:100%;border-collapse:collapse;font-size:14px;}
.prose th{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.08em;color:var(--accent);text-align:left;padding:12px 16px;border-bottom:2px solid var(--border2);background:var(--bg2);}
.prose td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--muted2);}

/* ─── CTA BOX ─── */
.article-cta{max-width:740px;margin:0 auto 60px;padding:0 24px;}
.cta-box{background:linear-gradient(135deg,rgba(79,142,255,0.1),rgba(99,102,241,0.08));border:1px solid rgba(79,142,255,0.25);border-radius:12px;padding:40px;text-align:center;}
.cta-box h3{font-family:var(--sans);font-size:24px;font-weight:700;margin-bottom:12px;}
.cta-box p{color:var(--muted2);font-size:16px;margin-bottom:24px;line-height:1.6;}
.cta-box .btn{display:inline-block;font-family:var(--mono);font-size:13px;padding:14px 32px;background:var(--accent);color:#fff;border:none;cursor:pointer;letter-spacing:0.06em;text-transform:uppercase;font-weight:600;text-decoration:none;border-radius:4px;transition:opacity 0.2s,transform 0.2s;}
.cta-box .btn:hover{opacity:0.85;transform:translateY(-2px);}

/* ─── RELATED ARTICLES ─── */
.related{max-width:1200px;margin:0 auto;padding:0 48px 80px;}
.related h2{font-family:var(--sans);font-size:24px;font-weight:700;margin-bottom:32px;text-align:center;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}

/* ─── FOOTER ─── */
footer{border-top:1px solid var(--border);padding:48px;display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;}
.footer-links{display:flex;gap:24px;list-style:none;}
.footer-links a{font-family:var(--mono);font-size:11px;color:var(--muted);text-decoration:none;letter-spacing:0.06em;text-transform:uppercase;transition:color 0.2s;}
.footer-links a:hover{color:var(--accent);}
.footer-copy{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.04em;}

/* ─── RESPONSIVE ─── */
@media(max-width:960px){
  nav{padding:16px 24px;}
  .nav-links,.nav-cta{display:none;}
  .blog-header{padding:120px 24px 40px;}
  .blog-header h1{font-size:32px;}
  .blog-grid{grid-template-columns:1fr;padding:0 24px 60px;}
  .related-grid{grid-template-columns:1fr;}
  .related{padding:0 24px 60px;}
  .cat-filter{padding:0 24px 32px;}
  footer{flex-direction:column;gap:20px;padding:32px 24px;}
  .article-header h1{font-size:30px;}
}
@media(min-width:601px) and (max-width:960px){
  .blog-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}