/* HERO of article (text-based, no image at top) */
.article-hero{
  padding:32px var(--gutter) 0;
  max-width:var(--container);margin:0 auto;
}
.article-hero__rubric{margin-bottom:12px}
.article-hero__title{
  font-size:56px;font-weight:800;
  letter-spacing:-0.03em;line-height:1.05;
  max-width:980px;
  margin-top:12px;
}
.article-hero__lead{
  font-size:22px;color:var(--muted);
  margin-top:20px;line-height:1.4;
  max-width:820px;
}
.article-hero__meta{
  display:flex;flex-wrap:wrap;gap:20px;
  font-size:13px;color:var(--muted);
  margin-top:24px;align-items:center;
}
.article-hero__meta-sep{color:var(--echo)}

@media (max-width:1023px){
  .article-hero__title{font-size:40px}
  .article-hero__lead{font-size:18px}
}
@media (max-width:480px){
  .article-hero__title{font-size:28px}
  .article-hero__lead{font-size:16px;margin-top:14px}
}

/* HERO image */
.article-cover-wrap{
  padding:48px var(--gutter) 0;
  max-width:var(--container);margin:0 auto;
}
.article-cover{
  width:100%;height:560px;
  object-fit:cover;display:block;
  border-radius:var(--r);
  background:var(--surface-alt);
}
@media (max-width:1023px){.article-cover{height:420px}}
@media (max-width:480px){.article-cover{height:240px}}

/* LAYOUT — sticky TOC + content */
.article-layout{
  padding:64px var(--gutter) 120px;
  max-width:var(--container);margin:0 auto;
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:80px;
}
.article-toc{
  position:sticky;
  top:96px; /* below sticky header */
  align-self:flex-start;
}
.article-toc__label{margin-bottom:16px}
.article-toc__list{
  display:flex;flex-direction:column;gap:10px;
  list-style:none;padding:0;
}
.article-toc__item{
  padding-left:14px;
  border-left:1px solid var(--line);
  font-size:13px;font-weight:500;color:var(--muted);
  line-height:1.35;
  cursor:pointer;
  transition:color .15s,border-color .15s;
}
.article-toc__item:hover{color:var(--ink)}
.article-toc__item.is-active{
  border-left:2px solid var(--ink);
  font-weight:700;color:var(--ink);
  padding-left:13px;
}
.article-toc__item a{display:block;color:inherit}

.article-side-cta{
  margin-top:32px;
  background:var(--surface);
  padding:24px;
}
.article-side-cta__label{margin-bottom:10px}
.article-side-cta__title{
  font-size:17px;font-weight:700;
  line-height:1.25;
}
.article-side-cta__sub{
  font-size:13px;color:var(--muted);
  margin-top:8px;line-height:1.4;
}

/* CONTENT */
.article-content{max-width:760px}
.article-content > section{margin-top:88px}
.article-content > section:first-child{margin-top:0}
.article-content h2{
  font-size:36px;font-weight:700;
  letter-spacing:-0.02em;
  line-height:1.15;
  margin-top:0;
  margin-bottom:8px;
}
.article-content h2:first-child{margin-top:0}
.article-content section > h2 + p,
.article-content section > h2 + ul,
.article-content section > h2 + ol{margin-top:24px}
.article-content h3{
  font-size:24px;font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.25;
  margin-top:48px;
  margin-bottom:8px;
}
.article-content p{
  margin-top:24px;
  font-size:17px;line-height:1.65;color:var(--ink);
}
.article-content ul, .article-content ol{
  margin-top:24px;padding-left:24px;
  font-size:17px;line-height:1.65;
}
.article-content li{margin-top:12px}
.article-content figure{margin-top:48px;margin-bottom:8px}
.article-content figure img{
  width:100%;height:auto;display:block;
  border-radius:var(--r);
}
.article-content figcaption{
  margin-top:16px;
  font-size:13px;color:var(--muted);line-height:1.5;
}

/* TLDR */
.tldr{
  background:var(--accent-bg);
  color:var(--accent-fg);
  padding:28px 32px;
  border-radius:var(--r);
  margin-top:0;
}
.tldr__label{
  font-size:11px;font-weight:600;
  letter-spacing:0.08em;text-transform:uppercase;
  color:rgba(255,255,255,0.55);
}
.tldr p.tldr__body{
  margin-top:12px;
  font-size:17px;line-height:1.55;
  color:#fff;
}

/* Pull quote */
.pull-quote{
  margin-top:64px;
  padding:40px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.pull-quote__text{
  font-size:28px;font-weight:600;
  line-height:1.25;letter-spacing:-0.01em;
  color:var(--ink);
}
.pull-quote__author{
  margin-top:16px;
  font-size:13px;color:var(--muted);
}

/* Comparison table */
.cmp-table-wrap{margin-top:32px}
.cmp-table{
  width:100%;
  border-collapse:collapse;
  border:1.5px solid var(--ink);
  border-radius:var(--r);
  overflow:hidden;
  font-size:15px;
}
.cmp-table thead th{
  background:var(--ink);color:#fff;
  font-weight:700;text-align:left;
  padding:16px 20px;
  border-right:1px solid rgba(255,255,255,0.15);
}
.cmp-table thead th:last-child{border-right:0}
.cmp-table tbody td{
  padding:16px 20px;
  border-top:1px solid var(--line);
  border-right:1px solid var(--line);
  color:var(--ink);
  background:#fff;
}
.cmp-table tbody td:last-child{border-right:0}
.cmp-table tbody tr:first-child td{border-top:0}

.cmp-table-foot{
  margin-top:14px;
  display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--muted);
}

@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:0;padding-top:32px}
  .article-toc{position:static;display:none}
  .article-toc-mobile{
    display:block;
    border:1.5px solid var(--ink);
    padding:14px 18px;
    margin:0 0 32px;
    cursor:pointer;
  }
  .article-toc-mobile summary{
    list-style:none;
    display:flex;align-items:center;justify-content:space-between;
    cursor:pointer;
  }
  .article-toc-mobile summary::-webkit-details-marker{display:none}
  .article-toc-mobile__title{font-size:14px;font-weight:700;color:var(--ink)}
  .article-toc-mobile__count{font-size:12px;color:var(--muted);margin-top:2px}
  .article-toc-mobile__icon{font-size:20px;color:var(--ink);transition:transform .2s}
  .article-toc-mobile[open] .article-toc__icon-plus{display:none}
  .article-toc-mobile__list{
    list-style:none;padding:0;margin:14px 0 0;
    display:flex;flex-direction:column;gap:8px;
  }
  .article-toc-mobile__list a{
    display:block;padding:6px 0;font-size:14px;color:var(--ink);
  }
  .cmp-table{font-size:13px}
  .cmp-table thead th,.cmp-table tbody td{padding:12px 14px}
  .article-content > section{margin-top:64px}
  .article-content h2{font-size:26px}
  .article-content h3{font-size:20px;margin-top:36px}
  .pull-quote{margin-top:48px;padding:32px 0}
  .pull-quote__text{font-size:22px}
  .faq{margin-top:72px}
  .faq h2,.related h2{font-size:26px;margin-bottom:20px}
  .author-block{margin-top:56px}
  .related{margin-top:72px}
  .article-final-cta{margin-top:72px}
}
@media (min-width:1024px){
  .article-toc-mobile{display:none}
}
@media (max-width:480px){
  .article-content > section{margin-top:48px}
  .article-content h2{font-size:22px}
  .article-content p,.article-content li{font-size:16px}
  .article-content figure{margin-top:32px}
  .tldr{padding:20px 22px}
  .tldr__body{font-size:16px}
  .pull-quote{margin-top:36px;padding:24px 0}
  .pull-quote__text{font-size:18px}
  .cmp-table-wrap{overflow-x:auto}
  .cmp-table{min-width:380px}
  .faq{margin-top:56px}
  .related{margin-top:56px}
  .author-block{margin-top:48px}
  .article-final-cta{margin-top:56px}
}

/* FAQ */
.faq{margin-top:96px}
.faq h2{
  font-size:36px;font-weight:700;letter-spacing:-0.02em;
  line-height:1.15;
  margin-bottom:24px;
}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:20px 0;
}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item__q{
  font-size:18px;font-weight:600;flex:1;
  line-height:1.3;color:var(--ink);
}
.faq-item__toggle{
  width:32px;height:32px;
  border:1.5px solid var(--ink);
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:400;
  flex-shrink:0;
  transition:transform .2s;
}
.faq-item[open] .faq-item__toggle{background:var(--ink);color:#fff}
.faq-item__a{
  margin-top:14px;padding-right:48px;
  font-size:16px;line-height:1.55;color:var(--ink);
}
.faq-item__a p{margin-top:12px;font-size:inherit;line-height:inherit}
.faq-item__a p:first-child{margin-top:0}

@media (max-width:480px){
  .faq h2{font-size:24px}
  .faq-item__q{font-size:16px}
  .faq-item__a{padding-right:0;font-size:15px}
}

/* Author / E-E-A-T */
.author-block{
  margin-top:80px;
  background:var(--surface);
  padding:28px;
  display:flex;gap:20px;align-items:center;
  border-radius:var(--r);
}
.author-block__avatar{
  width:72px;height:72px;
  border-radius:50%;
  background:var(--surface-alt);
  flex-shrink:0;
  overflow:hidden;
}
.author-block__avatar img{width:100%;height:100%;object-fit:cover}
.author-block__name{font-size:16px;font-weight:700}
.author-block__desc{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.4}

@media (max-width:480px){
  .author-block{padding:16px;gap:14px}
  .author-block__avatar{width:56px;height:56px}
  .author-block__name{font-size:14px}
  .author-block__desc{font-size:12px}
}

/* Related */
.related{margin-top:96px}
.related h2{
  font-size:36px;font-weight:700;letter-spacing:-0.02em;
  line-height:1.15;
  margin-bottom:32px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .related h2{font-size:26px}
}
@media (max-width:480px){
  .related-grid{grid-template-columns:1fr}
  .related h2{font-size:22px}
}

/* Final CTA */
.article-final-cta{margin-top:96px}