/* ==========================================================================
   Future SEO Growth — Single blog post styles (premium SaaS blog)
   Aligned container system: everything shares --fsg-shell so the featured
   image, header, article, TOC, CTA, related and newsletter all line up.
   ========================================================================== */
:root{
  --fsg-shell:1280px;      /* outer content shell (image, related, cta) */
  --fsg-measure:860px;     /* comfortable reading width for prose        */
  --fsg-gutter:28px;
}

.fsg-single,
.fsg-single-wide{max-width:var(--fsg-shell);margin-inline:auto;padding:0 var(--fsg-gutter);box-sizing:border-box}

/* ---------- breadcrumb ---------- */
.fsg-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-muted,#94a3b8);padding:32px 0 0;font-weight:500}
.fsg-breadcrumb a{color:var(--text-secondary,#475569);text-decoration:none;transition:color .2s}
.fsg-breadcrumb a:hover{color:var(--brand-primary,#2f6bff)}
.fsg-breadcrumb .sep{opacity:.45}
.fsg-breadcrumb > span:last-child{color:var(--text-primary,#0f172a);font-weight:600}

/* ---------- post header ---------- */
.fsg-post-head{max-width:var(--fsg-measure);margin-inline:auto;padding:24px 0 4px;text-align:center}
.fsg-post-head .fsg-pc-cat{margin:0 auto 18px}
.fsg-post-head h1{font-size:clamp(30px,4.6vw,48px);line-height:1.1;letter-spacing:-.025em;font-weight:800;color:var(--text-primary,#0f172a);margin:0 0 22px}
.fsg-post-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:22px;color:var(--text-secondary,#475569);font-size:14.5px}
.fsg-post-meta .who{display:flex;align-items:center;gap:10px}
.fsg-post-meta .fsg-pc-av{width:40px;height:40px;font-size:14px}
.fsg-post-meta .row{display:inline-flex;align-items:center;gap:6px}
.fsg-post-meta .row iconify-icon{color:var(--brand-primary,#2f6bff)}
.fsg-post-meta strong{color:var(--text-primary);font-weight:600}
.fsg-post-meta .dot{width:4px;height:4px;border-radius:9999px;background:var(--border-strong,#cbd5e1)}

/* ---------- hero featured image ---------- */
.fsg-post-hero-img{margin:30px auto 0;max-width:var(--fsg-shell);border-radius:24px;overflow:hidden;aspect-ratio:16/7.4;background:linear-gradient(135deg,#eef3ff,#e9f0ff);box-shadow:0 24px 60px -20px rgba(15,23,42,.28)}
.fsg-post-hero-img img{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- layout: prose + sticky TOC ---------- */
.fsg-post-layout{display:grid;grid-template-columns:1fr;justify-content:center;gap:56px;margin:48px 0 8px}
.fsg-post-layout.has-toc{grid-template-columns:minmax(0,var(--fsg-measure)) 240px;justify-content:center}
.fsg-post-layout:not(.has-toc) .fsg-article{max-width:var(--fsg-measure);margin-inline:auto}

.fsg-toc{position:sticky;top:104px;align-self:start;font-size:14px;padding:22px 20px;border-radius:16px;background:var(--surface-card,#fff);border:1px solid var(--border-subtle,rgba(15,23,42,.07));box-shadow:0 1px 2px rgba(15,23,42,.04)}
.fsg-toc h4{font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted,#94a3b8);margin:0 0 14px;font-weight:700}
.fsg-toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.fsg-toc a{display:block;padding:7px 0 7px 15px;border-left:2px solid var(--border-subtle,rgba(15,23,42,.08));color:var(--text-secondary,#475569);text-decoration:none;transition:all .18s;line-height:1.4;font-size:13.5px}
.fsg-toc a:hover,.fsg-toc a.active{color:var(--brand-primary,#2f6bff);border-left-color:var(--brand-primary,#2f6bff);background:linear-gradient(90deg,var(--brand-primary-soft,#eef3ff),transparent)}

/* ---------- article typography ---------- */
.fsg-article{font-size:18.5px;line-height:1.8;color:#334155;letter-spacing:-.003em}
.fsg-article > *:first-child{margin-top:0}
.fsg-article p{margin:0 0 26px}
.fsg-article > p:first-of-type{font-size:20px;line-height:1.7;color:#1e293b}
.fsg-article h2{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--text-primary,#0f172a);margin:52px 0 18px;line-height:1.18;scroll-margin-top:104px;position:relative}
.fsg-article h2::before{content:"";position:absolute;left:-24px;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--gradient-brand,linear-gradient(180deg,#2f6bff,#1e4fd6));opacity:0}
.fsg-article h3{font-size:23px;font-weight:700;color:var(--text-primary,#0f172a);margin:38px 0 14px;line-height:1.25;scroll-margin-top:104px}
.fsg-article h4{font-size:19px;font-weight:700;color:var(--text-primary);margin:30px 0 10px}
.fsg-article a{color:var(--brand-primary,#2f6bff);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;font-weight:500}
.fsg-article a:hover{text-decoration-thickness:2px}
.fsg-article strong{color:var(--text-primary,#0f172a);font-weight:700}
.fsg-article ul,.fsg-article ol{margin:0 0 26px;padding-left:4px;display:flex;flex-direction:column;gap:12px;list-style:none;counter-reset:fsgli}
.fsg-article ul li,.fsg-article ol li{position:relative;padding-left:34px;line-height:1.7}
.fsg-article ul li::before{content:"";position:absolute;left:6px;top:12px;width:8px;height:8px;border-radius:9999px;background:var(--brand-primary,#2f6bff)}
.fsg-article ol li{counter-increment:fsgli}
.fsg-article ol li::before{content:counter(fsgli);position:absolute;left:0;top:1px;width:24px;height:24px;border-radius:9999px;background:var(--brand-primary-soft,#e9f0ff);color:var(--brand-primary,#2f6bff);font-size:12.5px;font-weight:700;display:grid;place-items:center}
.fsg-article img{max-width:100%;height:auto;border-radius:18px;margin:32px 0;box-shadow:0 12px 32px -12px rgba(15,23,42,.22)}
.fsg-article blockquote{margin:34px 0;padding:26px 30px;border-left:4px solid var(--brand-primary,#2f6bff);background:var(--brand-primary-soft,#e9f0ff);border-radius:0 16px 16px 0;font-size:20px;line-height:1.6;font-style:italic;color:var(--text-primary)}
.fsg-article blockquote p:last-child{margin-bottom:0}
.fsg-article pre{background:#0a0f1f;color:#e2e8f0;padding:22px;border-radius:16px;overflow-x:auto;font-size:14.5px;margin:28px 0;line-height:1.6}
.fsg-article code{font-family:var(--font-mono,'IBM Plex Mono',monospace);font-size:.88em;background:var(--brand-primary-soft,#eef3ff);color:var(--brand-primary-strong,#1e4fd6);padding:2px 7px;border-radius:6px}
.fsg-article pre code{background:none;padding:0;color:inherit}
.fsg-article table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15.5px;border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px var(--border-subtle,rgba(15,23,42,.1))}
.fsg-article th,.fsg-article td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-subtle,rgba(15,23,42,.08))}
.fsg-article th{background:var(--brand-primary-soft,#eef3ff);font-weight:700;color:var(--text-primary)}
.fsg-article tr:last-child td{border-bottom:0}
.fsg-article hr{border:0;height:1px;background:var(--border-subtle,rgba(15,23,42,.1));margin:40px 0}

/* callout */
.fsg-callout{margin:32px 0;padding:24px 26px;border-radius:18px;background:var(--brand-primary-soft,#e9f0ff);border:1px solid rgba(47,107,255,.16);display:flex;gap:16px}
.fsg-callout iconify-icon{color:var(--brand-primary,#2f6bff);flex-shrink:0;margin-top:2px}
.fsg-callout .c-body{font-size:16px;line-height:1.65}

/* ---------- share row ---------- */
.fsg-share{max-width:var(--fsg-measure);margin:44px auto 0;display:flex;align-items:center;gap:12px;padding:22px 0;border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle)}
.fsg-share .lbl{font-size:14px;font-weight:600;color:var(--text-secondary);margin-right:4px}
.fsg-share a{width:42px;height:42px;border-radius:9999px;display:grid;place-items:center;background:var(--surface,#fff);border:1px solid var(--border-subtle);color:var(--text-secondary);text-decoration:none;transition:all .22s}
.fsg-share a:hover{background:var(--brand-primary,#2f6bff);color:#fff;border-color:var(--brand-primary);transform:translateY(-3px);box-shadow:0 10px 22px -8px rgba(47,107,255,.6)}

/* ---------- author bio ---------- */
.fsg-author-bio{max-width:var(--fsg-measure);margin:32px auto 0;display:flex;gap:18px;align-items:center;padding:26px 28px;border-radius:20px;background:linear-gradient(135deg,#f8faff,#f2f6ff);border:1px solid var(--border-subtle)}
.fsg-author-bio .fsg-pc-av{width:60px;height:60px;font-size:22px}
.fsg-author-bio .ab-name{font-weight:700;color:var(--text-primary);font-size:17px}
.fsg-author-bio .ab-role{font-size:14px;color:var(--text-muted);margin-top:3px}

/* ---------- inline CTA banner ---------- */
.fsg-inline-cta{max-width:var(--fsg-measure);margin:44px auto 0;padding:40px 36px;border-radius:24px;background:radial-gradient(120% 140% at 0% 0%,#12203f 0%,#0a0f1f 55%);color:#fff;text-align:center;position:relative;overflow:hidden}
.fsg-inline-cta::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 80% at 100% 0%,rgba(47,107,255,.35),transparent 70%);pointer-events:none}
.fsg-inline-cta > *{position:relative;z-index:1}
.fsg-inline-cta h3{color:#fff;font-size:25px;font-weight:800;margin:0 0 10px;letter-spacing:-.01em}
.fsg-inline-cta p{color:#c7d2e6;margin:0 0 22px;font-size:16.5px}

/* ---------- prev / next ---------- */
.fsg-prevnext{max-width:var(--fsg-measure);margin:44px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fsg-prevnext a{display:flex;flex-direction:column;gap:8px;padding:22px 24px;border-radius:18px;background:var(--surface-card,#fff);border:1px solid var(--border-subtle);text-decoration:none;transition:all .24s}
.fsg-prevnext a:hover{border-color:var(--brand-primary,#2f6bff);transform:translateY(-3px);box-shadow:0 16px 34px -14px rgba(15,23,42,.2)}
.fsg-prevnext .dir{font-size:12.5px;font-weight:700;color:var(--brand-primary,#2f6bff);text-transform:uppercase;letter-spacing:.05em}
.fsg-prevnext .t{font-size:15.5px;font-weight:600;color:var(--text-primary);line-height:1.35}
.fsg-prevnext a.next{text-align:right}

/* ---------- related ---------- */
.fsg-related{margin:72px 0 0}
.fsg-related > h2{font-size:27px;font-weight:800;color:var(--text-primary);margin:0 0 26px;letter-spacing:-.015em;text-align:center}

/* ---------- CTA + newsletter share look with archive ---------- */
.fsg-single-wide .fsg-newsletter{margin:64px 0 0}

/* ---------- comments (premium restyle of theme output) ---------- */
.fsg-comments-shell{max-width:var(--fsg-measure);margin:0 auto;padding:0 var(--fsg-gutter)}
#comments,.comment-respond,.comments-area{max-width:var(--fsg-measure);margin-inline:auto}
.comments-area{margin-top:64px;padding:36px;border-radius:24px;background:var(--surface-card,#fff);border:1px solid var(--border-subtle,rgba(15,23,42,.07));box-shadow:0 1px 2px rgba(15,23,42,.04)}
.comments-area .comments-title,.comments-area .comment-reply-title{font-size:22px;font-weight:800;color:var(--text-primary);letter-spacing:-.01em;margin:0 0 18px}
.comments-area .comment-list{list-style:none;margin:0 0 24px;padding:0;display:flex;flex-direction:column;gap:18px}
.comments-area .comment-body{padding:20px 22px;border-radius:16px;background:#f8faff;border:1px solid var(--border-subtle)}
.comments-area .comment-author .fn{font-weight:700;color:var(--text-primary)}
.comments-area .comment-meta{font-size:12.5px;color:var(--text-muted)}
.comments-area .comment-meta a{color:var(--text-muted);text-decoration:none}
.comments-area .comment-form{display:grid;gap:16px}
.comments-area .comment-notes,.comments-area .logged-in-as{font-size:13.5px;color:var(--text-muted)}
.comments-area .comment-form label{font-size:14px;font-weight:600;color:var(--text-primary);display:block;margin-bottom:6px}
.comments-area input[type=text],.comments-area input[type=email],.comments-area input[type=url],.comments-area textarea{width:100%;box-sizing:border-box;padding:13px 16px;border:1px solid var(--border-subtle);border-radius:12px;background:#fff;font-size:15px;font-family:var(--font-sans);color:var(--text-primary);transition:border-color .16s,box-shadow .16s}
.comments-area input:focus,.comments-area textarea:focus{outline:none;border-color:var(--brand-primary,#2f6bff);box-shadow:0 0 0 3px var(--brand-primary-soft,#e9f0ff)}
.comments-area .form-submit .submit,.comments-area #submit{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:9999px;border:0;background:var(--brand-primary,#2f6bff);color:#fff;font-weight:600;font-size:15px;cursor:pointer;transition:background .2s,transform .2s}
.comments-area .form-submit .submit:hover,.comments-area #submit:hover{background:var(--brand-primary-strong,#1e4fd6);transform:translateY(-1px)}
.comments-area .comment-form-cookies-consent{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--text-secondary)}
.comments-area .comment-form-cookies-consent input{width:auto}

/* ---------- footer transition ---------- */
.fsg-single-wide.fsg-tail{padding-bottom:80px}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .fsg-post-layout.has-toc{grid-template-columns:1fr;max-width:var(--fsg-measure);margin-inline:auto}
  .fsg-toc{display:none}
}
@media (max-width:768px){
  :root{--fsg-gutter:20px}
  .fsg-post-hero-img{aspect-ratio:16/9;border-radius:18px}
  .fsg-article{font-size:17px}
  .fsg-article h2{font-size:26px;margin:40px 0 14px}
  .fsg-article h3{font-size:20px}
  .fsg-inline-cta{padding:32px 24px}
}
@media (max-width:640px){
  .fsg-prevnext{grid-template-columns:1fr}
  .fsg-prevnext a.next{text-align:left}
  .fsg-article{font-size:16.5px}
  .fsg-author-bio{flex-direction:column;text-align:center}
  .fsg-post-meta{gap:14px}
  .comments-area{padding:24px 20px}
}

/* astra single width unlock */
.single-post .site-content .ast-container,.single-post .entry-content.clear{max-width:none !important;padding-left:0 !important;padding-right:0 !important}
.single-post #primary,.single-post .site-main{padding:0 !important}
.single-post .entry-content.clear > *{max-width:none}
.single-post .comments-area{max-width:var(--fsg-measure);margin-left:auto;margin-right:auto}

/* prevnext + comments upgrade */
.fsg-prevnext{max-width:var(--fsg-measure);gap:24px;margin-top:0}
.fsg-prevnext a{position:relative;gap:10px;padding:26px 28px;border-radius:20px;overflow:hidden}
.fsg-prevnext a::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--brand-primary-soft,#eef3ff),transparent 60%);opacity:0;transition:opacity .24s}
.fsg-prevnext a:hover::before{opacity:1}
.fsg-prevnext a > *{position:relative;z-index:1}
.fsg-prevnext .dir{display:inline-flex;align-items:center;gap:6px}
.fsg-prevnext .t{font-size:16.5px;line-height:1.35;transition:color .2s}
.fsg-prevnext a:hover .t{color:var(--brand-primary,#2f6bff)}
.fsg-continue-head{max-width:var(--fsg-measure);margin:56px auto 18px;padding:0}
.fsg-continue-head h2{font-size:24px;font-weight:800;letter-spacing:-.01em;color:var(--text-primary);margin:0}
.single-post .comments-area{max-width:var(--fsg-measure)}
.comments-area{margin-top:24px;padding:40px 40px 44px;border-radius:26px;background:linear-gradient(180deg,#fbfcff,#f6f9ff);box-shadow:0 2px 4px rgba(15,23,42,.03)}
.comments-area .comment-respond{margin-top:8px}
.comments-area .comment-reply-title{font-size:24px}
.comments-area .comment-form>p{margin:0}
.comments-area .comment-form-comment{grid-column:1/-1}
.comments-area .comment-form{grid-template-columns:1fr 1fr}
.comments-area .comment-form-author,.comments-area .comment-form-email{grid-column:auto}
.comments-area .comment-form-url,.comments-area .comment-form-cookies-consent,.comments-area .form-submit{grid-column:1/-1}
.comments-area textarea{min-height:150px;resize:vertical}
@media(max-width:640px){.comments-area .comment-form{grid-template-columns:1fr}.comments-area{padding:26px 22px}}