/* ============================================================
   FUSION DEVELOPERS — BLOG & CONTENT PAGES EXTENSION
   Extends glass_ui.css with article, service, FAQ, and
   project case-study page styles.
   ============================================================ */

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;
  font-size:var(--step--1);color:var(--muted);margin-bottom:2rem;
  padding-top:6rem;
}
.breadcrumb a{color:var(--sand);opacity:.7;transition:opacity .3s,color .3s}
.breadcrumb a:hover{opacity:1;color:var(--gold)}
.breadcrumb .sep{color:var(--gold);opacity:.5}

/* ---------- article header ---------- */
.article-header{margin-bottom:3rem}
.article-header h1{max-width:48ch}
.article-meta{
  display:flex;flex-wrap:wrap;gap:1.2rem;align-items:center;
  font-size:var(--step--1);color:var(--muted);margin-top:1rem;
  letter-spacing:.08em;
}
.article-meta time{color:var(--sand)}
.article-meta .tag{
  background:rgba(201,162,39,.15);color:var(--gold);
  padding:.25rem .7rem;border-radius:999px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;font-size:.72rem;
}

/* ---------- table of contents ---------- */
.toc{
  background:var(--glass-bg);border:1px solid var(--glass-brd);
  border-radius:var(--r);padding:1.6rem 2rem;margin-bottom:2.5rem;
  backdrop-filter:blur(var(--glass-blur));
}
.toc h2{font-size:var(--step-0);margin-bottom:.8rem;color:var(--sand);font-family:var(--font-ui);letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.toc ol{margin:0;padding-left:1.4rem;counter-reset:toc}
.toc ol li{margin-bottom:.45rem;color:var(--muted)}
.toc ol li a{color:var(--sand);transition:color .3s}
.toc ol li a:hover{color:var(--gold)}

/* ---------- article body ---------- */
.article-body{max-width:78ch}
.article-body h2{
  margin-top:3rem;padding-top:1.5rem;
  border-top:1px solid var(--line);
}
.article-body h2:first-child{border-top:none;margin-top:0;padding-top:0}
.article-body h3{margin-top:2rem;color:var(--sand)}
.article-body p{line-height:1.75}
.article-body ul,.article-body ol{
  padding-left:1.4rem;margin:0 0 1.5em;color:var(--muted);
}
.article-body li{margin-bottom:.5rem;line-height:1.7}
.article-body strong{color:var(--paper);font-weight:600}
.article-body a{color:var(--gold);text-decoration:underline;text-underline-offset:3px;transition:opacity .3s}
.article-body a:hover{opacity:.8}
.article-body blockquote{
  border-left:3px solid var(--gold);padding:.8rem 1.4rem;margin:1.5rem 0;
  background:rgba(201,162,39,.06);border-radius:0 var(--r) var(--r) 0;
  font-style:italic;color:var(--sand);
}
.article-body code{
  background:rgba(255,255,255,.08);padding:.15rem .45rem;border-radius:6px;
  font-size:.9em;color:var(--gold);
}
.article-body img{
  border-radius:var(--r);margin:2rem 0;border:1px solid var(--glass-brd);
}

/* ---------- comparison table ---------- */
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;margin:1.5rem 0 2rem;border-radius:var(--r);overflow:hidden;border:1px solid var(--glass-brd)}
.cmp-table thead th{
  background:rgba(201,162,39,.12);color:var(--gold);
  padding:.9rem 1.1rem;text-align:left;font-size:var(--step--1);
  letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  border-bottom:1px solid var(--line);
}
.cmp-table tbody td{
  padding:.85rem 1.1rem;border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--muted);font-size:var(--step--1);
}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table tbody tr:hover{background:rgba(255,255,255,.03)}
.cmp-table .highlight{color:var(--gold);font-weight:600}

/* ---------- key-value spec list ---------- */
.spec-list{list-style:none;padding:0;margin:1.5rem 0}
.spec-list li{
  display:flex;justify-content:space-between;padding:.7rem 0;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--muted);font-size:var(--step--1);
}
.spec-list li:last-child{border-bottom:none}
.spec-list .spec-label{color:var(--sand);font-weight:500}
.spec-list .spec-value{color:var(--gold);font-weight:600;text-align:right}

/* ---------- FAQ accordion ---------- */
.faq-section{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line)}
.faq-item{
  border-bottom:1px solid rgba(255,255,255,.08);
}
.faq-item summary{
  cursor:pointer;padding:1.2rem 0;color:var(--sand);font-weight:500;
  font-size:clamp(1rem,.96rem + .2vw,1.12rem);
  list-style:none;display:flex;justify-content:space-between;align-items:center;
  transition:color .3s;
}
.faq-item summary:hover{color:var(--gold)}
.faq-item summary::after{
  content:"+";font-size:1.4rem;color:var(--gold);transition:transform .3s var(--ease);
  flex-shrink:0;margin-left:1rem;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{
  padding:0 0 1.2rem;color:var(--muted);line-height:1.75;max-width:64ch;
}
.faq-item summary::-webkit-details-marker{display:none}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(135deg,rgba(201,162,39,.12),rgba(201,162,39,.04));
  border:1px solid rgba(201,162,39,.25);border-radius:var(--r);
  padding:clamp(2rem,4vw,3.5rem);text-align:center;margin:3rem 0;
}
.cta-banner h2{color:var(--sand);margin-bottom:.6rem}
.cta-banner p{margin:0 auto 1.5rem;max-width:52ch}
.cta-banner .btn{margin:.3rem}

/* ---------- related posts ---------- */
.related-posts{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line)}
.related-posts h2{font-size:var(--step-1);margin-bottom:1.5rem}
.related-card{
  display:block;padding:1.4rem;transition:transform .5s var(--ease),border-color .5s var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(201,162,39,.42)}
.related-card .eyebrow{margin-bottom:.4rem}
.related-card h3{font-size:clamp(1rem,.96rem + .2vw,1.15rem);margin-bottom:.4rem}
.related-card p{font-size:var(--step--1);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- project case study ---------- */
.project-hero{
  min-height:40vh;display:flex;align-items:flex-end;
  background-size:cover;background-position:center;
  border-radius:var(--r);margin-bottom:2.5rem;
  padding:2.5rem;position:relative;overflow:hidden;
}
.project-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,17,32,.92),rgba(10,17,32,.3));
}
.project-hero>*{position:relative;z-index:1}
.project-stats{display:flex;flex-wrap:wrap;gap:1.2rem;margin:2rem 0}
.project-stat{
  flex:1;min-width:140px;text-align:center;
  padding:1.2rem;
}
.project-stat .stat-n{font-family:var(--font-display);font-size:var(--step-1);color:var(--gold);margin:0}
.project-stat .stat-l{font-size:var(--step--1);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:.3rem 0 0}

/* ---------- service page highlights ---------- */
.service-highlights{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem;margin:2rem 0;
}
.highlight-card{text-align:center;padding:1.6rem 1rem}
.highlight-card .icon{font-size:2rem;margin-bottom:.6rem}
.highlight-card h4{font-family:var(--font-display);font-size:var(--step-0);color:var(--sand);margin:0 0 .4rem}
.highlight-card p{font-size:var(--step--1);margin:0;color:var(--muted)}

/* ---------- blog index grid ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.4rem}
.blog-card{display:flex;flex-direction:column;transition:transform .5s var(--ease),border-color .5s var(--ease)}
.blog-card:hover{transform:translateY(-4px);border-color:rgba(201,162,39,.42)}
.blog-card-body{padding:1.6rem;flex:1;display:flex;flex-direction:column}
.blog-card-body h3{font-size:clamp(1.05rem,1rem + .3vw,1.25rem);margin-bottom:.5rem}
.blog-card-body p{font-size:var(--step--1);flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.blog-card-body .read-more{
  color:var(--gold);font-size:var(--step--1);font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;margin-top:auto;padding-top:.8rem;
}
.blog-card-tag{
  display:inline-block;background:rgba(201,162,39,.12);color:var(--gold);
  padding:.2rem .6rem;border-radius:999px;font-size:.7rem;
  letter-spacing:.1em;text-transform:uppercase;font-weight:600;margin-bottom:.6rem;
}

/* ---------- author box ---------- */
.author-box{
  display:flex;gap:1.2rem;align-items:center;
  padding:1.4rem;margin:2rem 0;
}
.author-box .author-avatar{
  width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--indigo-500));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-size:1.4rem;color:var(--ink);font-weight:600;
  flex-shrink:0;
}
.author-box .author-info h4{margin:0;font-size:var(--step-0);color:var(--sand);font-family:var(--font-ui)}
.author-box .author-info p{margin:.2rem 0 0;font-size:var(--step--1)}

/* ---------- back-to-top ---------- */
.back-to-top{
  position:fixed;bottom:5.5rem;right:1.8rem;z-index:70;
  width:44px;height:44px;border-radius:50%;
  background:var(--gold);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .4s var(--ease),transform .4s var(--ease);
  border:none;box-shadow:0 4px 20px rgba(201,162,39,.4);
}
.back-to-top.visible{opacity:1;pointer-events:auto}
.back-to-top:hover{transform:scale(1.1)}

/* ---------- responsive ---------- */
@media(max-width:640px){
  .breadcrumb{padding-top:5rem}
  .cmp-table{font-size:.82rem}
  .blog-grid{grid-template-columns:1fr}
  .project-stats{flex-direction:column}
  .service-highlights{grid-template-columns:1fr 1fr}
}