/* ── Blog Article ── */
.art-hero{background:var(--dark);padding:0;}
.art-hero-img{width:100%;height:clamp(260px,38vw,480px);overflow:hidden;position:relative;}
.art-hero-img svg{width:100%;height:100%;}
.art-hero-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,31,23,.85) 0%,rgba(10,31,23,.2) 60%,transparent 100%);}
.art-hero-content{padding:32px 0 56px;}
.art-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.5);margin-bottom:20px;flex-wrap:wrap;}
.art-breadcrumb a{color:rgba(255,255,255,.5);text-decoration:none;}
.art-breadcrumb a:hover{color:#fff;}
.art-breadcrumb-sep{font-size:11px;opacity:.4;}
.art-hero h1{font-family:var(--display);font-size:clamp(1.7rem,4vw,3rem);font-weight:800;color:#fff;letter-spacing:-.03em;line-height:1.1;margin-bottom:20px;max-width:18ch;}
.art-hero-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.art-hero-meta-item{display:flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.6);}

/* ── Layout ── */
.art-layout{max-width:var(--maxw);margin:0 auto;padding:56px 24px 88px;display:grid;grid-template-columns:1fr 300px;gap:56px;align-items:start;}

/* ── Article body ── */
.art-body{min-width:0;}
.art-lead{font-size:1.15rem;color:var(--ink-2);line-height:1.75;margin-bottom:36px;padding-bottom:28px;border-bottom:1px solid var(--line);}

.art-content h2{font-family:var(--display);font-size:clamp(1.3rem,2.5vw,1.75rem);font-weight:700;color:var(--ink);letter-spacing:-.02em;margin:44px 0 16px;}
.art-content h3{font-family:var(--display);font-size:1.15rem;font-weight:700;color:var(--ink);margin:32px 0 12px;}
.art-content p{font-size:16px;color:var(--ink-2);line-height:1.8;margin-bottom:20px;}
.art-content ul,.art-content ol{padding-left:20px;margin-bottom:20px;}
.art-content li{font-size:16px;color:var(--ink-2);line-height:1.75;margin-bottom:8px;}
.art-content strong{color:var(--ink);font-weight:700;}
.art-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}

/* ── Callout box ── */
.art-callout{background:var(--soft);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:20px 22px;margin:28px 0;font-size:15px;color:var(--ink-2);line-height:1.7;}
.art-callout strong{color:var(--accent);}

/* ── Data table ── */
.art-table-wrap{overflow-x:auto;margin:28px 0;}
.art-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.art-table th{background:var(--dark);color:#fff;padding:12px 16px;text-align:left;font-weight:600;font-size:13px;}
.art-table td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;}
.art-table tr:last-child td{border-bottom:none;}
.art-table tr:nth-child(even) td{background:var(--soft);}

/* ── Author block ── */
.art-author{display:flex;align-items:flex-start;gap:16px;background:var(--soft);border-radius:14px;padding:24px;margin:44px 0 36px;}
.art-author-info{}
.art-author-name{font-weight:700;font-size:15px;color:var(--ink);margin-bottom:3px;}
.art-author-role{font-size:13px;color:var(--ink-3);}
.art-author-bio{font-size:14px;color:var(--ink-2);line-height:1.65;margin-top:8px;}
.art-author-monogram{width:52px;height:52px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:800;font-size:18px;color:#fff;font-family:var(--display);letter-spacing:-.02em;}

/* ── Tags ── */
.art-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:36px;}
.art-tag{font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:8px;background:var(--soft);color:var(--ink-2);border:1px solid var(--line);}

/* ── Share ── */
.art-share{display:flex;align-items:center;gap:10px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:36px;}
.art-share-label{font-size:13px;font-weight:700;color:var(--ink-2);margin-right:4px;}
.art-share-btn{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;border:1.5px solid var(--line);color:var(--ink-2);cursor:pointer;transition:all .15s;}
.art-share-btn:hover{border-color:var(--accent);color:var(--accent);}

/* ── CTA inline ── */
.art-cta{background:var(--dark);border-radius:18px;padding:36px 32px;margin:40px 0;position:relative;overflow:hidden;}
.art-cta::before{content:'';position:absolute;inset:0;background:radial-gradient(60% 100% at 90% 0%,rgba(37,211,102,.22),transparent 60%);}
.art-cta>*{position:relative;z-index:1;}
.art-cta-eyebrow{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-2);margin-bottom:10px;}
.art-cta-title{font-family:var(--display);font-size:1.4rem;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:10px;}
.art-cta-sub{font-size:14.5px;color:rgba(255,255,255,.65);line-height:1.6;margin-bottom:20px;}
.art-cta-btns{display:flex;gap:10px;flex-wrap:wrap;}

/* ── Sidebar ── */
.art-sidebar{position:sticky;top:80px;}
.art-sidebar-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:22px;}
.art-sidebar-card h4{font-family:var(--display);font-size:13.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;margin-bottom:14px;text-transform:uppercase;letter-spacing:.06em;font-size:11px;color:var(--ink-3);}

/* TOC */
.art-toc-list{list-style:none;padding:0;}
.art-toc-item{padding:6px 0;border-bottom:1px solid var(--line);}
.art-toc-item:last-child{border-bottom:none;}
.art-toc-link{font-size:13.5px;color:var(--ink-2);text-decoration:none;display:flex;align-items:center;gap:8px;transition:color .15s;}
.art-toc-link:hover,.art-toc-link.active{color:var(--accent);}
.art-toc-link::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--line);flex-shrink:0;transition:background .15s;}
.art-toc-link.active::before,.art-toc-link:hover::before{background:var(--accent);}

/* Related posts */
.art-related-item{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line);}
.art-related-item:last-child{border-bottom:none;}
.art-related-img{width:68px;height:52px;border-radius:8px;overflow:hidden;flex-shrink:0;}
.art-related-img svg{width:100%;height:100%;}
.art-related-title{font-size:13px;font-weight:600;color:var(--ink);line-height:1.4;}
.art-related-title a{color:inherit;text-decoration:none;}
.art-related-title a:hover{color:var(--accent);}
.art-related-date{font-size:11.5px;color:var(--ink-3);margin-top:4px;}

/* CTA sidebar */
.art-sb-cta{background:var(--grad);border-radius:14px;padding:24px;text-align:center;}
.art-sb-cta-title{font-family:var(--display);font-size:1rem;font-weight:800;color:#fff;margin-bottom:8px;}
.art-sb-cta-sub{font-size:13px;color:rgba(255,255,255,.75);line-height:1.55;margin-bottom:16px;}
.art-sb-cta .btn{width:100%;justify-content:center;background:rgba(255,255,255,.15);border:1.5px solid rgba(255,255,255,.3);font-size:13.5px;}
.art-sb-cta .btn:hover{background:rgba(255,255,255,.25);}

/* ── Responsive ── */
@media(max-width:900px){
  .art-layout{grid-template-columns:1fr;gap:40px;}
  .art-sidebar{position:static;top:auto;}
}
@media(max-width:600px){
  .art-hero h1{font-size:1.75rem;}
  .art-cta{padding:24px 20px;}
}