/* ============================================================
   POLYREQ Blog styles, used by /blog/ and all /blog/<slug>/ pages.
   Depends on css/main.css (loads after it).
   ============================================================ */

/* ---------- Listing page ---------- */
.blog-hero{padding:170px 0 40px;text-align:center;position:relative;overflow:hidden}
.blog-hero::before{content:'';position:absolute;top:-30%;left:50%;transform:translateX(-50%);width:80%;height:120%;background:radial-gradient(ellipse at center,rgba(56,118,221,.12),transparent 62%);pointer-events:none}
.blog-hero h1{margin-bottom:18px}
.blog-hero .sub{margin:0 auto;text-align:center}

.blog-list{padding:60px 0 120px}
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:12px}
.blog-card{display:flex;flex-direction:column;gap:14px;padding:34px 32px;background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);transition:border-color .35s,transform .3s,box-shadow .35s;text-decoration:none}
.blog-card:hover{border-color:var(--bdh);transform:translateY(-4px);box-shadow:0 18px 50px rgba(0,0,0,.35)}
.blog-card.featured{grid-column:1 / -1;border-color:rgba(255,211,42,.28);background:linear-gradient(135deg,rgba(255,211,42,.05),var(--sf))}
.blog-card-tag{font-family:var(--fm);font-size:11.5px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--gd)}
.blog-card h2,.blog-card h3{font-family:var(--fh);font-size:1.45rem;font-weight:700;color:var(--tx);line-height:1.3;margin:0}
.blog-card.featured h2{font-size:clamp(1.6rem,2.8vw,2.1rem)}
.blog-card p{font-size:15.5px;color:var(--tx2);line-height:1.7;margin:0}
.blog-card-meta{margin-top:auto;padding-top:12px;font-family:var(--fm);font-size:12.5px;color:var(--tx3);letter-spacing:.4px}
.blog-card-more{color:var(--al);font-weight:600;font-size:15px}
.blog-card:hover .blog-card-more{color:var(--gd)}

/* ---------- Article page ---------- */
.post-hero{padding:180px 0 56px;position:relative;overflow:hidden}
.post-hero::before{content:'';position:absolute;top:-40%;right:-10%;width:70%;height:120%;background:radial-gradient(ellipse at center,rgba(56,118,221,.1),transparent 60%);pointer-events:none}
.post-hero .w{max-width:860px}
.post-hero h1{font-size:clamp(2rem,4vw,3rem);margin:14px 0 22px}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-family:var(--fm);font-size:13px;color:var(--tx3);letter-spacing:.4px}
.post-meta a{color:var(--al)}
.post-lede{font-size:1.25rem;color:var(--tx2);line-height:1.8;margin-top:26px}

.post-body{padding:30px 0 90px}
.post-body .w{max-width:800px}
.post-body>.w>*{max-width:760px}
.post-body p{font-size:17.5px;color:var(--tx2);line-height:1.85;margin:0 0 26px}
.post-body h2{font-size:clamp(1.5rem,2.6vw,1.95rem);color:var(--tx);margin:56px 0 20px;letter-spacing:-.015em}
.post-body h3{font-size:1.25rem;color:var(--tx);margin:40px 0 14px}
.post-body ul,.post-body ol{margin:0 0 26px;padding-left:26px}
.post-body li{font-size:17.5px;color:var(--tx2);line-height:1.8;margin-bottom:10px}
.post-body li::marker{color:var(--gd)}
.post-body strong{color:var(--tx);font-weight:600}
.post-body a{color:var(--al);text-decoration:underline;text-decoration-color:rgba(162,209,250,.35);text-underline-offset:3px;transition:color .3s}
.post-body a:hover{color:var(--gd)}
.post-body blockquote{margin:34px 0;padding:22px 28px;background:var(--gl);border-radius:var(--rs)}
.post-body blockquote p{margin:0;font-size:18px;color:var(--tx);font-style:italic}
.post-body code{font-family:var(--fm);font-size:.86em;background:rgba(255,255,255,.06);border:1px solid var(--bd);border-radius:6px;padding:2px 7px;color:var(--al)}
.post-body pre{margin:0 0 26px;padding:22px 24px;background:var(--bg2);border:1px solid var(--bd);border-radius:var(--rs);overflow-x:auto}
.post-body pre code{background:none;border:none;padding:0;font-size:14px;line-height:1.7;color:var(--tx2)}
.post-body hr{border:none;border-top:1px solid var(--bd);margin:48px 0}
.post-body figure{margin:34px 0}
.post-body figure img{border-radius:var(--rs);border:1px solid var(--bd)}
.post-body figcaption{font-family:var(--fm);font-size:13.5px;line-height:1.65;color:var(--tx2);margin-top:10px;text-align:center}

/* Inline SVG figures */
.post-fig{margin:40px 0;padding:28px 22px 18px;background:var(--gl);border:1px solid var(--bd);border-radius:var(--r)}
.post-fig svg{width:100%;height:auto;display:block}
.post-fig figcaption{margin-top:16px}

/* Key-takeaways box */
.post-takeaways{margin:38px 0;padding:28px 30px;background:linear-gradient(135deg,rgba(56,118,221,.08),rgba(255,211,42,.05));border:1px solid rgba(56,118,221,.25);border-radius:var(--r)}
.post-takeaways h2,.post-takeaways h3{margin:0 0 14px;font-size:1.05rem;font-family:var(--fm);font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--al)}
.post-takeaways ul{margin:0;padding-left:22px}
.post-takeaways li{margin-bottom:8px;font-size:16px}

/* End-of-post CTA + share */
.post-cta{margin:56px 0 0;padding:38px 36px;text-align:center;background:var(--sf);border:1px solid rgba(255,211,42,.25);border-radius:var(--r)}
.post-cta h2{font-size:clamp(1.4rem,2.4vw,1.8rem);margin:0 0 12px}
.post-cta p{max-width:560px;margin:0 auto 24px;font-size:16px}
.post-share{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:26px;border-top:1px solid var(--bd)}
.post-share .back{font-size:15px;font-weight:600;color:var(--al)}
.post-share .back:hover{color:var(--gd)}
.post-share .share-ln{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--tx2);border:1px solid var(--bd);border-radius:100px;padding:10px 20px;transition:all .3s}
.post-share .share-ln:hover{color:#fff;border-color:var(--al);background:rgba(56,118,221,.1)}

@media(max-width:820px){
  .blog-grid{grid-template-columns:1fr}
  .blog-hero{padding:150px 0 24px}
  .post-hero{padding:150px 0 36px}
  .blog-card{padding:28px 24px}
}

/* Animated figure: static variant on small screens */
.post-fig svg.banim-mobile{display:none}
@media(max-width:640px){
  .post-fig svg.banim{display:none}
  .post-fig svg.banim-mobile{display:block}
}

/* Wide figures carry a narrow drawing for phones (fig-d desktop / fig-m mobile) */
.post-fig svg.fig-m{display:none}
@media(max-width:640px){
  .post-fig{padding:20px 16px 16px}
  .post-fig svg.fig-d{display:none}
  .post-fig svg.fig-m{display:block}
  .post-fig figcaption{text-align:left;font-size:13px;line-height:1.7;margin-top:14px}
}

/* Card teaser graphics on the listing */
.blog-card-viz{border-radius:var(--rs);background:rgba(255,255,255,.02);border:1px solid var(--bd);padding:12px 14px;margin-bottom:6px}
.blog-card-viz svg{display:block;width:100%;height:auto}