/* ════════════════════════════════════════════════════════════
   PREMIUM BLOG ARTICLE STYLES  —  innovativeais.com/blog
   Shared by every blog article page (case-studies/blog-*.php)
   ════════════════════════════════════════════════════════════ */

:root{
  --ba-primary:#085e9d;
  --ba-primary-d:#064a7a;
  --ba-sky:#0ea5e9;
  --ba-ink:#0f172a;
  --ba-text:#41506b;
  --ba-muted:#8b9ab0;
  --ba-surf:#f5f9fc;
  --ba-border:rgba(8,94,157,.14);
  --ba-grad:linear-gradient(135deg,#0f172a 0%,#085e9d 55%,#0ea5e9 115%);
}

body{
  font-family:'Poppins',sans-serif;
  color:var(--ba-text);
  background:#fff;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}

/* ── Post hero ─────────────────────────────────────────────── */
.post-hero{
  position:relative;
  background:var(--ba-grad);
  padding:110px 0 76px;
  color:#fff;
  overflow:hidden;
}
.post-hero::before{                      /* soft light orb top-right */
  content:"";
  position:absolute;top:-140px;right:-120px;
  width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 62%);
  pointer-events:none;
}
.post-hero::after{                       /* subtle grid pattern */
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 30%,transparent 75%);
  mask-image:radial-gradient(ellipse at 30% 20%,#000 30%,transparent 75%);
  pointer-events:none;
}
.post-hero .container{max-width:860px;position:relative;z-index:1;}

.post-category{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.35);
  color:#fff;padding:7px 18px;border-radius:40px;
  font-size:.76rem;font-weight:600;
  text-transform:uppercase;letter-spacing:1.6px;
  margin-bottom:22px;text-decoration:none;
  backdrop-filter:blur(6px);
  transition:all .3s;
}
.post-category:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-1px);}

.post-hero h1{
  font-size:clamp(1.9rem,4.6vw,3rem);
  font-weight:800;line-height:1.22;
  color:#fff;margin-bottom:16px;
}
.post-sub{
  font-size:1.06rem;opacity:.9;
  max-width:660px;line-height:1.75;margin:0;
}

.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:18px;margin-top:28px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.18);
}
.post-meta .pm-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.84rem;color:rgba(255,255,255,.9);
}
.post-meta .pm-item i{color:#7dd3fc;font-size:.9rem;}
.pm-avatar{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,#38bdf8,#0ea5e9);
  color:#04283f;font-size:.7rem;font-weight:800;letter-spacing:.5px;
  box-shadow:0 0 0 2px rgba(255,255,255,.22);
}

/* ── Article layout ────────────────────────────────────────── */
.post-article{max-width:760px;margin:0 auto;padding:0 24px 60px;}

.post-thumb{
  display:block;width:100%;
  max-height:430px;height:auto;object-fit:cover;
  border-radius:22px;margin:44px auto 0;
  box-shadow:0 24px 60px rgba(15,23,42,.18);
  border:1px solid rgba(8,94,157,.08);
}

/* ── Prose ─────────────────────────────────────────────────── */
.post-body{padding:8px 0 10px;}
.post-body p{
  font-size:1.045rem;line-height:1.95;color:var(--ba-text);margin-bottom:22px;
}
.post-body p:first-of-type::first-letter{
  float:left;font-size:3.4rem;line-height:.85;
  font-weight:800;color:var(--ba-primary);
  padding-right:12px;padding-top:6px;
}
.post-body h2{
  font-size:1.62rem;font-weight:800;color:var(--ba-ink);
  margin:46px 0 16px;padding-left:18px;
  border-left:4px solid var(--ba-sky);
  line-height:1.35;
}
.post-body h3{
  font-size:1.25rem;font-weight:700;color:var(--ba-ink);
  margin:34px 0 12px;
}
.post-body a{color:var(--ba-primary);font-weight:600;}
.post-body ul,.post-body ol{padding-left:6px;margin-bottom:24px;list-style:none;}
.post-body li{
  position:relative;font-size:1.02rem;line-height:1.85;
  color:var(--ba-text);margin-bottom:12px;padding-left:30px;
}
.post-body ul li::before{
  content:"";
  position:absolute;left:2px;top:.62em;
  width:11px;height:11px;border-radius:4px;
  background:linear-gradient(135deg,var(--ba-sky),var(--ba-primary));
}
.post-body ol{counter-reset:bstep;}
.post-body ol li{counter-increment:bstep;}
.post-body ol li::before{
  content:counter(bstep);
  position:absolute;left:0;top:.1em;
  width:22px;height:22px;border-radius:50%;
  background:var(--ba-surf);color:var(--ba-primary);
  border:1px solid var(--ba-border);
  font-size:.75rem;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.post-body li strong{color:var(--ba-ink);}
.post-body blockquote{
  border-left:4px solid var(--ba-sky);
  background:var(--ba-surf);border-radius:0 16px 16px 0;
  padding:22px 28px;margin:30px 0;
  font-style:italic;color:var(--ba-ink);font-size:1.05rem;
}
.post-body img{max-width:100%;border-radius:14px;margin:26px auto;display:block;}

/* ── Share bar ─────────────────────────────────────────────── */
.share-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:20px 0;margin:36px 0 30px;
  border-top:1px solid var(--ba-border);
  border-bottom:1px solid var(--ba-border);
}
.share-bar>span{font-weight:700;color:var(--ba-ink);font-size:.9rem;margin-right:6px;}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:40px;
  text-decoration:none;font-size:.8rem;font-weight:600;color:#fff;
  transition:all .25s;
}
.share-btn:hover{transform:translateY(-2px);opacity:.9;color:#fff;}
.share-btn.wa{background:#25D366;}
.share-btn.li{background:#0a66c2;}
.share-btn.x{background:#0f172a;}
.share-btn.cp{background:var(--ba-primary);}

/* ── Author box ────────────────────────────────────────────── */
.author-box{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--ba-surf);border:1px solid var(--ba-border);
  border-radius:18px;padding:26px;margin:34px 0;
}
.author-box .ab-avatar{
  flex-shrink:0;width:60px;height:60px;border-radius:16px;
  background:linear-gradient(135deg,var(--ba-sky),var(--ba-primary));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.15rem;letter-spacing:.5px;
  box-shadow:0 10px 22px rgba(8,94,157,.25);
}
.author-box .ab-tag{font-size:.7rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--ba-primary);}
.author-box h4{font-size:1.05rem;font-weight:700;color:var(--ba-ink);margin:2px 0 6px;}
.author-box p{font-size:.9rem;color:var(--ba-muted);line-height:1.7;margin:0;}

/* ── Back link ─────────────────────────────────────────────── */
.back-link{
  display:inline-flex;align-items:center;gap:10px;
  margin:6px 0 44px;font-weight:600;font-size:.92rem;
  color:var(--ba-primary);text-decoration:none;
  transition:gap .25s;
}
.back-link:hover{gap:14px;color:var(--ba-primary-d);}

/* ── CTA box ───────────────────────────────────────────────── */
.cta-box{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--ba-primary) 0%,#0a6eb3 60%,var(--ba-sky) 130%);
  border-radius:24px;padding:52px 40px;
  text-align:center;color:#fff;margin-bottom:60px;
}
.cta-box::before{
  content:"";position:absolute;top:-90px;left:-70px;
  width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 65%);
}
.cta-box::after{
  content:"";position:absolute;bottom:-110px;right:-60px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,165,233,.4),transparent 65%);
}
.cta-box>*{position:relative;z-index:1;}
.cta-box h3{font-size:1.55rem;font-weight:800;color:#fff;margin-bottom:12px;line-height:1.35;}
.cta-box p{opacity:.9;max-width:520px;margin:0 auto 24px;color:#fff;}
.cta-box a{
  background:#fff;color:var(--ba-primary);
  padding:14px 36px;border-radius:40px;
  font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:10px;
  transition:all .3s;box-shadow:0 14px 30px rgba(3,37,66,.25);
}
.cta-box a:hover{background:#eaf6ff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(3,37,66,.3);}

/* ── Responsive ────────────────────────────────────────────── */
@media(max-width:768px){
  .post-hero{padding:86px 0 56px;}
  .post-hero .container,.post-article{padding-left:20px;padding-right:20px;}
  .post-article{padding-bottom:44px;}
  .cta-box{padding:38px 24px;}
  .cta-box h3{font-size:1.3rem;}
  .post-thumb{border-radius:16px;margin-top:32px;}
  .share-bar>span{width:100%;}
}
@media(max-width:480px){
  .post-hero h1{font-size:1.7rem;}
  .post-meta{gap:12px 16px;}
  .author-box{flex-direction:column;align-items:flex-start;}
}