/* Restored KB/Blog hub styles — teal brand */

/* ════════════════════════════════════════════
   DESIGN TOKENS & RESET
════════════════════════════════════════════ */
:root {
  --bg:         #F4F8FA;
  --bg2:        #E8F1F5;
  --bg3:        #E2ECF1;

  --surface:    #ffffff;
  --surface2:   #F7FAFB;

  --border:     rgba(0,0,0,0.08);
  --border2:    rgba(0,0,0,0.14);

  --brand:       #1D5C7E;
  --brand-2:      #2A6F94;
  --brand-light: #5A9BB8;
  --brand-glow:  rgba(29,92,126,0.15);

  --cyan:       #3A8FB0;
  --green:      #20b486;
  --amber:      #e89a1a;
  --red:        #e05a5a;

  --text:       #111827;
  --text2:      #4b5563;
  --text3:      #6b7280;
  --text4:      #9ca3af;

  --lora-body:  #3d4556;
  --lora-head:  #0f172a;
  --art-prose:    #3d4556;
  --art-prose-soft: #5c6370;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Plus Jakarta Sans',sans-serif;
  background:#ffffff;
  color:#334155;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:'Plus Jakarta Sans',sans-serif}
img{max-width:100%;display:block}
body *{font-family:inherit}

/* Grain overlay */
body::after{
  content:'';position:fixed;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23g)' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events:none;z-index:9000;opacity:.35;
}

/* Scrollbar */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--brand-2),var(--cyan));border-radius:10px}

/* ════════════════════════════════════════════
   READING PROGRESS
════════════════════════════════════════════ */
#rdprog{
  position:fixed;top:0;left:0;right:0;height:2px;
  z-index:9999;pointer-events:none;
}
#rdprog-fill{
  height:100%;width:0%;
  background:linear-gradient(90deg,var(--brand-2),var(--cyan));
  transition:width .08s linear;
  box-shadow:0 0 10px var(--cyan);
}

/* ════════════════════════════════════════════
   NAVBAR — obsolete (shared .site-head owns chrome)
   Do not style bare .nav here; it breaks the site header.
════════════════════════════════════════════ */

/* ════════════════════════════════════════════
   PAGE SYSTEM
════════════════════════════════════════════ */
.page{display:block;min-height:100vh}
.page.active{display:block;animation:pgIn .45s cubic-bezier(.25,.46,.45,.94)}
@keyframes pgIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

/* ════════════════════════════════════════════
   REVEAL ANIMATIONS
════════════════════════════════════════════ */
.rv{opacity:0;transform:translateY(22px);transition:opacity .65s cubic-bezier(.25,.46,.45,.94),transform .65s cubic-bezier(.25,.46,.45,.94)}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
.rv.on{opacity:1;transform:translateY(0)}

/* ════════════════════════════════════════════
   SHARED UTILITIES
════════════════════════════════════════════ */
.tag-label{
  font-size:.7rem;font-weight:700;letter-spacing:.11em;
  text-transform:uppercase;color:var(--brand-light);
  margin-bottom:14px;display:block;
}
.grad-headline{
  background:linear-gradient(135deg,#0f172a 15%,#64748b 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.grad-blue{
  background:linear-gradient(135deg,var(--brand-light),var(--cyan));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}

/* ════════════════════════════════════════════
   ██████  BLOG LISTING PAGE
════════════════════════════════════════════ */

/* Hero */
.blog-hero{
  padding:clamp(56px,8vw,88px) 5% clamp(56px,8vw,80px);
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--border);
}
.blog-hero-mesh{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%,rgba(29,92,126,.12),transparent),
    radial-gradient(ellipse 40% 40% at 80% 30%,rgba(58,143,176,.06),transparent);
}
.blog-hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(29,92,126,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,92,126,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 100% 80% at 0% 50%,black 20%,transparent 100%);
}
.blog-hero-inner{max-width:700px;position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 16px 5px 8px;
  background:rgba(29,92,126,.1);border:1px solid rgba(29,92,126,.22);
  border-radius:100px;margin-bottom:30px;
  font-size:.73rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--brand-light);
}
.live-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px var(--cyan);
  animation:ldot 2s ease-in-out infinite;
}
@keyframes ldot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.3)}}
.blog-hero h1{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:clamp(2.6rem,5.5vw,4rem);
  font-weight:800;letter-spacing:-.035em;line-height:1.05;
  margin-bottom:22px;
}
.blog-hero .sub{
  font-size:1.06rem;color:var(--text2);line-height:1.78;
  font-weight:300;max-width:520px;margin-bottom:36px;
}
.hero-search{
  display:flex;align-items:center;gap:0;
  max-width:420px;
  background:var(--surface);border:1px solid var(--border2);
  border-radius:12px;overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.hero-search:focus-within{border-color:rgba(29,92,126,.5);box-shadow:0 0 0 3px rgba(29,92,126,.1)}
.hero-search svg{margin-left:16px;color:var(--text3);flex-shrink:0;width:18px;height:18px}
.hero-search input{
  flex:1;padding:13px 14px;
  background:transparent;border:none;outline:none;
  color:var(--text);font-family:'Plus Jakarta Sans',sans-serif;font-size:.9rem;
}
.hero-search input::placeholder{color:var(--text3)}
.hero-search button{
  padding:11px 20px;background:var(--brand);
  border:none;color:#fff;font-size:.83rem;font-weight:600;
  cursor:pointer;transition:background .2s;
}
.hero-search button:hover{background:var(--brand-2)}
.blog-hero-stats{
  display:flex;gap:40px;margin-top:44px;
  padding-top:32px;border-top:1px solid var(--border);
}
.bh-stat-num{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:1.6rem;font-weight:800;
  color:var(--brand-light);
}
.bh-stat-label{font-size:.75rem;color:var(--text3);margin-top:2px}

/* Category strip */
.cat-strip{
  position:sticky;top:88px;z-index:100;
  padding:18px 5%;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  display:flex;gap:8px;flex-wrap:nowrap;overflow-x:auto;
  scrollbar-width:none;
}
.cat-strip::-webkit-scrollbar{display:none}
.cat-btn{
  padding:7px 18px;border-radius:100px;
  border:1px solid var(--border2);background:transparent;
  color:var(--text2);font-size:.8rem;font-weight:500;
  cursor:pointer;white-space:nowrap;transition:all .2s;
}
.cat-btn:hover{color:var(--text);border-color:rgba(29,92,126,.35);background:rgba(29,92,126,.07)}
.cat-btn.on{color:var(--brand-light);border-color:rgba(29,92,126,.45);background:rgba(29,92,126,.12)}

/* Featured strip */
.feat-section{padding:56px 5% 0}
.feat-strip-label{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:24px;
}
.feat-strip-label span{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text3)}
.feat-strip-label a{font-size:.8rem;color:var(--brand-light);cursor:pointer;transition:opacity .2s}
.feat-strip-label a:hover{opacity:.75}

/* Featured hero card */
.feat-hero-card{
  display:grid;grid-template-columns:1fr 1.15fr;
  background:var(--surface);border:1px solid var(--border);
  border-radius:20px;overflow:hidden;
  cursor:pointer;
  transition:border-color .3s,box-shadow .3s,transform .3s;
  position:relative;
}
.feat-hero-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 5%,var(--brand-light) 40%,var(--cyan) 60%,transparent 95%);
  opacity:0;transition:opacity .3s;
}
.feat-hero-card:hover{border-color:rgba(29,92,126,.3);transform:translateY(-4px);box-shadow:0 24px 56px rgba(29,92,126,.14)}
.feat-hero-card:hover::before{opacity:1}
.feat-visual{
  background:var(--bg3);
  display:flex;align-items:center;justify-content:center;
  min-height:360px;padding:44px;
  position:relative;overflow:hidden;
}
.feat-visual::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(29,92,126,.06),rgba(58,143,176,.03));
}
.feat-viz-wrap{position:relative;z-index:2;width:100%;max-width:320px}
.viz-card{
  background:var(--surface);border:1px solid var(--border2);
  border-radius:14px;padding:22px;margin-bottom:12px;
}
.viz-card:last-child{margin-bottom:0}
.viz-title{font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--text3);margin-bottom:14px}
.viz-row{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.viz-row:last-child{margin-bottom:0}
.viz-lbl{font-size:.71rem;color:var(--text3);width:90px;flex-shrink:0;font-family:'Plus Jakarta Sans',sans-serif}
.viz-track{flex:1;height:5px;border-radius:3px;background:var(--bg2);overflow:hidden}
.viz-fill{height:100%;border-radius:3px;animation:vfill 1.5s ease-out forwards}
@keyframes vfill{from{width:0}}
.viz-badge{
  width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.viz-score{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--border);
}
.viz-score-num{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:2rem;font-weight:800;
  background:linear-gradient(135deg,var(--brand-light),var(--cyan));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.viz-score-label{font-size:.7rem;color:var(--text3);margin-bottom:4px;line-height:1.4}
.viz-mini-bars{display:flex;gap:4px;align-items:flex-end;height:32px}
.viz-mini-bar{width:7px;border-radius:3px 3px 0 0;background:rgba(29,92,126,.25)}
.feat-body{
  padding:52px 48px;
  display:flex;flex-direction:column;justify-content:center;
}
.art-cat{
  display:inline-flex;align-items:center;gap:5px;
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brand-light);margin-bottom:16px;
}
.feat-body h2{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.85rem;font-weight:800;
  letter-spacing:-.025em;line-height:1.13;
  margin-bottom:16px;color:var(--text);
}
.feat-body .excerpt{
  font-size:.93rem;color:var(--text2);line-height:1.78;
  font-weight:300;margin-bottom:28px;
}
.art-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.art-meta-author{display:flex;align-items:center;gap:8px}
.art-avatar{
  width:30px;height:30px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-size:.67rem;font-weight:800;color:#fff;flex-shrink:0;
  font-family:'Plus Jakarta Sans',sans-serif;
}
.art-avatar.sm{width:26px;height:26px;font-size:.6rem}
.art-meta-name{font-size:.82rem;font-weight:600}
.art-meta-dot{width:3px;height:3px;border-radius:50%;background:var(--text4)}
.art-meta-detail{font-size:.78rem;color:var(--text3)}
.read-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;
  background:rgba(29,92,126,.12);border:1px solid rgba(29,92,126,.25);
  border-radius:9px;color:var(--brand-light);
  font-size:.84rem;font-weight:600;
  cursor:pointer;transition:all .22s;width:fit-content;
}
.read-link:hover{background:rgba(29,92,126,.22);transform:translateX(4px)}
.read-link svg{width:14px;height:14px;transition:transform .22s}
.read-link:hover svg{transform:translateX(3px)}

/* Secondary featured cards */
.feat-secondary{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:16px;margin-top:16px;
}
.feat-sec-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:16px;overflow:hidden;cursor:pointer;
  display:flex;flex-direction:column;
  transition:all .28s;
}
.feat-sec-card:hover{border-color:rgba(29,92,126,.3);transform:translateY(-4px);box-shadow:0 20px 56px rgba(0,0,0,.45)}
.sec-visual{
  height:140px;background:var(--bg3);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.sec-visual-pattern{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(29,92,126,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,92,126,.04) 1px,transparent 1px);
  background-size:22px 22px;
}
.sec-icon{
  width:52px;height:52px;border-radius:14px;
  background:rgba(29,92,126,.13);border:1px solid rgba(29,92,126,.22);
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.sec-icon svg{width:22px;height:22px}
.sec-body{padding:22px;flex:1;display:flex;flex-direction:column}
.sec-cat{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-light);margin-bottom:8px}
.sec-body h3{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1rem;font-weight:700;line-height:1.32;
  letter-spacing:-.01em;margin-bottom:8px;
}
.sec-body p{font-size:.82rem;color:var(--text2);line-height:1.65;flex:1;font-weight:300}
.sec-footer{
  padding:0 22px 18px;
  display:flex;align-items:center;justify-content:space-between;
  margin-top:10px;
}
.sec-meta{font-size:.74rem;color:var(--text3)}
.arr-btn{
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--border2);
  display:flex;align-items:center;justify-content:center;
  transition:all .2s;color:var(--text3);
}
.feat-sec-card:hover .arr-btn{border-color:var(--brand-light);color:var(--brand-light);transform:translateX(2px)}

/* Articles grid */
.articles-section{padding:52px 5% 80px}
.articles-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:28px;
}
.articles-head h2{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:1.3rem;font-weight:800;
  letter-spacing:-.015em;
}
.articles-head a{font-size:.8rem;color:var(--brand-light);cursor:pointer;transition:opacity .2s}
.articles-head a:hover{opacity:.7}
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.art-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:16px;overflow:hidden;cursor:pointer;
  display:flex;flex-direction:column;
  transition:all .3s cubic-bezier(.25,.46,.45,.94);
  position:relative;
}
.art-card:hover{
  border-color:rgba(29,92,126,.28);
  transform:translateY(-5px);
  box-shadow:0 20px 60px rgba(0,0,0,.45);
}
.art-card-visual{
  height:154px;background:var(--bg3);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.art-card-visual .vpat{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(29,92,126,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,92,126,.04) 1px,transparent 1px);
  background-size:20px 20px;
}
.art-card-icon{
  width:50px;height:50px;border-radius:13px;
  background:rgba(29,92,126,.12);border:1px solid rgba(29,92,126,.2);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.art-card-icon svg{width:22px;height:22px}
.art-card-body{padding:22px;flex:1;display:flex;flex-direction:column}
.art-card-cat{font-size:.67rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-light);margin-bottom:9px}
.art-card-body h3{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.97rem;font-weight:700;
  line-height:1.35;letter-spacing:-.01em;margin-bottom:9px;
}
.art-card-body p{font-size:.81rem;color:var(--text2);line-height:1.64;flex:1;font-weight:300}
.art-card-foot{
  padding:0 22px 18px;
  display:flex;align-items:center;justify-content:space-between;
}
.art-card-meta{font-size:.73rem;color:var(--text3)}
.art-arrow{
  width:27px;height:27px;border-radius:50%;
  border:1px solid var(--border2);
  display:flex;align-items:center;justify-content:center;
  transition:all .2s;color:var(--text3);
}
.art-card:hover .art-arrow{border-color:var(--brand-light);color:var(--brand-light)}

/* Newsletter */
.newsletter-section{
  padding:60px 5% 80px;
  border-top:1px solid var(--border);
}
.nl-card{
  background:linear-gradient(135deg,rgba(29,92,126,.1),rgba(58,143,176,.05));
  border:1px solid rgba(29,92,126,.2);
  border-radius:20px;padding:52px 60px;
  display:grid;grid-template-columns:1fr 1fr;
  gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.nl-card::before{
  content:'';position:absolute;top:-1px;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-light),var(--cyan),transparent);
}
.nl-card::after{
  content:'';position:absolute;bottom:-60px;right:-60px;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(58,143,176,.07),transparent 70%);
  pointer-events:none;
}
.nl-left h3{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:1.7rem;font-weight:800;
  letter-spacing:-.025em;margin-bottom:12px;
}
.nl-left p{font-size:.9rem;color:var(--text2);line-height:1.72;font-weight:300}
.nl-form{display:flex;gap:10px;flex-wrap:wrap}
.nl-input{
  flex:1;min-width:200px;padding:13px 18px;
  background:rgba(255,255,255,.05);border:1px solid var(--border2);
  border-radius:10px;color:var(--text);
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.9rem;outline:none;
  transition:all .2s;
}
.nl-input:focus{border-color:rgba(29,92,126,.45);box-shadow:0 0 0 3px rgba(29,92,126,.1)}
.nl-input::placeholder{color:var(--text3)}
.nl-btn{
  padding:13px 26px;background:var(--brand);
  border:none;border-radius:10px;color:#fff;
  font-size:.88rem;font-weight:600;cursor:pointer;
  transition:all .2s;box-shadow:0 0 20px var(--brand-glow);white-space:nowrap;
}
.nl-btn:hover{background:var(--brand-2);transform:translateY(-1px);box-shadow:0 0 32px rgba(29,92,126,.45)}
.nl-note{font-size:.72rem;color:var(--text3);margin-top:10px}

/* ════════════════════════════════════════════
   ██████  ARTICLE PAGE
════════════════════════════════════════════ */
.art-page-wrap{
  display:grid;
  grid-template-columns:1fr 276px;
  gap:0;
  padding-top:0;
}
.art-main{border-right:1px solid var(--border);min-height:100vh}

/* Article hero */
.art-hero{
  padding:72px 6% 56px;
  background:var(--bg2);
  border-bottom:1px solid var(--border);
  position:relative;overflow:hidden;
}
.art-hero-glow{
  position:absolute;top:-100px;right:-80px;
  width:500px;height:450px;
  background:radial-gradient(ellipse,rgba(29,92,126,.1),transparent 70%);
  pointer-events:none;
}
.art-hero-glow2{
  position:absolute;bottom:-80px;left:30%;
  width:300px;height:300px;
  background:radial-gradient(ellipse,rgba(58,143,176,.05),transparent 70%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:.76rem;color:var(--text3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text3);transition:color .2s;cursor:pointer}
.breadcrumb a:hover{color:var(--brand-light)}
.breadcrumb svg{width:10px;height:10px;color:var(--text4)}
.art-cat-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:100px;
  font-size:.7rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--brand-light);
  background:rgba(29,92,126,.1);border:1px solid rgba(29,92,126,.2);
  margin-bottom:20px;
}
.art-hero h1{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:clamp(1.85rem,3.8vw,2.75rem);
  font-weight:800;letter-spacing:-.03em;line-height:1.08;
  margin-bottom:22px;color:var(--lora-head);
  position:relative;z-index:2;
}
.art-hero-lead{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.125rem;color:var(--art-prose-soft);line-height:1.72;
  font-style:normal;font-weight:500;letter-spacing:-.015em;
  max-width:42rem;margin-bottom:34px;
  padding-left:20px;
  border-left:3px solid rgba(29,92,126,.35);
  position:relative;z-index:2;
}
.art-meta-bar{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding-top:28px;border-top:1px solid var(--border);
  position:relative;z-index:2;
}
.author-chip{display:flex;align-items:center;gap:10px}
.author-chip-name{font-size:.86rem;font-weight:600}
.author-chip-role{font-size:.73rem;color:var(--text3);margin-top:1px}
.meta-sep{width:1px;height:34px;background:var(--border2)}
.meta-pill{text-align:left}
.meta-pill strong{display:block;font-size:.84rem;font-weight:500;color:var(--text2)}
.meta-pill span{font-size:.69rem;color:var(--text3);display:block;margin-top:1px}
.share-cluster{display:flex;gap:8px;margin-left:auto}
.share-btn{
  width:32px;height:32px;border-radius:8px;
  border:1px solid var(--border2);background:transparent;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s;color:var(--text3);
}
.share-btn:hover{border-color:rgba(29,92,126,.35);color:var(--brand-light);background:rgba(29,92,126,.08)}
.share-btn svg{width:14px;height:14px}

/* Article body */
.art-body-col{
  padding:clamp(40px,5vw,58px) clamp(20px,5vw,48px) clamp(64px,10vw,88px);
  max-width:42rem;
  margin-inline:auto;
}

/* ─ Typography System ─ */
.art-body{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.125rem;
  line-height:1.78;
  color:var(--art-prose);
  font-weight:400;
  letter-spacing:-.011em;
  text-rendering:optimizeLegibility;
}
.art-body>p{margin-bottom:1.5em}
.art-body h2{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:clamp(1.35rem,2.5vw,1.6rem);font-weight:800;
  letter-spacing:-.028em;line-height:1.22;
  color:var(--lora-head);
  margin:2.5em 0 .75em;
  padding-top:2em;
  border-top:1px solid var(--border);
}
.art-body h2:first-of-type{border-top:none;padding-top:0;margin-top:.35em}
.art-body h3{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.1875rem;font-weight:700;
  letter-spacing:-.02em;line-height:1.3;
  color:var(--lora-head);
  margin:1.85em 0 .6em;
}
.art-body h4{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.02rem;font-weight:700;
  color:var(--lora-head);margin:1.45em 0 .45em;letter-spacing:-.015em;
}
.art-body strong{color:var(--lora-head);font-weight:600}
.art-body em{color:var(--art-prose-soft);font-style:italic}
.art-body ul,.art-body ol{margin:1.15em 0 1.4em;padding-left:1.25em}
.art-body li{margin-bottom:.5em;line-height:1.75}
.art-body li::marker{color:rgba(29,92,126,.85)}
.art-body a{
  color:var(--brand-light);
  border-bottom:1px solid rgba(122,155,255,.3);
  transition:border-color .2s;
}
.art-body a:hover{border-bottom-color:var(--brand-light)}

/* Blockquote */
.art-body blockquote{
  margin:2.2em 0;padding:28px 30px;
  background:rgba(29,92,126,.06);
  border:1px solid rgba(29,92,126,.18);
  border-left:3px solid var(--brand-light);
  border-radius:0 14px 14px 0;
}
.art-body blockquote p{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.0625rem;font-style:italic;font-weight:400;
  line-height:1.75;color:var(--lora-head);margin:0;
}
.art-body blockquote cite{
  display:block;margin-top:12px;
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.77rem;
  color:var(--text3);font-style:normal;
}

/* Callout boxes */
.callout{
  margin:2em 0;padding:22px 26px;
  border-radius:13px;display:flex;gap:16px;align-items:flex-start;
}
.co-info{background:rgba(29,92,126,.07);border:1px solid rgba(29,92,126,.2)}
.co-warn{background:rgba(245,166,35,.06);border:1px solid rgba(245,166,35,.2)}
.co-success{background:rgba(45,212,160,.06);border:1px solid rgba(45,212,160,.2)}
.co-danger{background:rgba(240,96,96,.06);border:1px solid rgba(240,96,96,.2)}
.co-icon{flex-shrink:0;margin-top:2px}
.co-icon svg{width:18px;height:18px}
.co-content{font-family:'Plus Jakarta Sans',sans-serif;font-size:.88rem;line-height:1.7;color:var(--text2)}
.co-content strong{display:block;font-size:.87rem;color:var(--text);margin-bottom:5px;font-weight:700}

/* Checklist */
.checklist{list-style:none;margin:1.4em 0 2em;display:grid;gap:11px}
.checklist li{
  display:flex;align-items:flex-start;gap:12px;
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.91rem;
  color:var(--text2);line-height:1.65;
}
.ci{
  width:22px;height:22px;flex-shrink:0;border-radius:6px;
  display:flex;align-items:center;justify-content:center;margin-top:1px;
}
.ci-check{background:rgba(45,212,160,.12);border:1px solid rgba(45,212,160,.25)}
.ci-cross{background:rgba(240,96,96,.1);border:1px solid rgba(240,96,96,.2)}
.ci-warn{background:rgba(245,166,35,.1);border:1px solid rgba(245,166,35,.2)}
.ci svg{width:11px;height:11px}

/* Step cards */
.step-card{
  display:flex;gap:18px;align-items:flex-start;
  margin:1.4em 0;padding:22px 26px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;transition:border-color .2s;
}
.step-card:hover{border-color:rgba(29,92,126,.25)}
.step-num{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:rgba(29,92,126,.15);border:1px solid rgba(29,92,126,.25);
  display:flex;align-items:center;justify-content:center;
  font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:.88rem;
  color:var(--brand-light);
}
.step-content{font-family:'Plus Jakarta Sans',sans-serif}
.step-content h4{font-size:.93rem;font-weight:700;color:var(--text);margin-bottom:5px}
.step-content p{font-size:.85rem;color:var(--text2);line-height:1.65}

/* Stat boxes */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:14px;margin:2em 0;
}
.stat-box{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:24px;text-align:center;
  transition:all .25s;
}
.stat-box:hover{border-color:rgba(29,92,126,.3);transform:translateY(-3px)}
.stat-n{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:2rem;font-weight:800;
  background:linear-gradient(135deg,var(--brand-light),var(--cyan));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.stat-l{font-size:.76rem;color:var(--text3);margin-top:5px;line-height:1.45}

/* Data table */
.data-table{width:100%;border-collapse:collapse;margin:1.6em 0;font-family:'Plus Jakarta Sans',sans-serif;font-size:.84rem}
.data-table th{
  padding:11px 14px;text-align:left;
  font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--text3);background:var(--surface);
  border-bottom:1px solid var(--border2);
}
.data-table td{
  padding:11px 14px;color:var(--text2);
  border-bottom:1px solid var(--border);line-height:1.5;
}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover td{background:rgba(29,92,126,.03)}
.td-yes{color:var(--green);font-weight:600;font-size:.78rem}
.td-no{color:var(--red);font-weight:600;font-size:.78rem}
.td-part{color:var(--amber);font-weight:600;font-size:.78rem}

/* Comparison grid */
.compare-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:14px;margin:1.8em 0;
}
.compare-card{
  border-radius:13px;padding:20px 22px;
  font-family:'Plus Jakarta Sans',sans-serif;
}
.compare-bad{background:rgba(240,96,96,.06);border:1px solid rgba(240,96,96,.18)}
.compare-good{background:rgba(45,212,160,.06);border:1px solid rgba(45,212,160,.18)}
.compare-card h5{font-size:.75rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;margin-bottom:12px}
.compare-bad h5{color:var(--red)}
.compare-good h5{color:var(--green)}
.compare-card ul{list-style:none;display:grid;gap:8px}
.compare-card ul li{font-size:.84rem;color:var(--text2);display:flex;gap:8px;line-height:1.5}

/* Article CTA */
.art-cta{
  margin:3em 0;padding:40px 44px;
  background:linear-gradient(135deg,rgba(29,92,126,.1),rgba(58,143,176,.05));
  border:1px solid rgba(29,92,126,.2);
  border-radius:20px;text-align:center;
  position:relative;overflow:hidden;
}
.art-cta::before{
  content:'';position:absolute;top:0;left:20%;right:20%;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-light),transparent);
}
.art-cta h3{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:1.35rem;font-weight:800;
  margin-bottom:10px;
}
.art-cta p{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.88rem;
  color:var(--text2);margin-bottom:24px;
  max-width:380px;margin-left:auto;margin-right:auto;line-height:1.7;
}
.art-cta-btn{
  padding:12px 30px;background:var(--brand);
  border:none;border-radius:9px;color:#fff;
  font-size:.88rem;font-weight:600;cursor:pointer;
  transition:all .2s;box-shadow:0 0 22px var(--brand-glow);
  font-family:'Plus Jakarta Sans',sans-serif;
}
.art-cta-btn:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 0 36px rgba(29,92,126,.45)}

/* Tags + Author bio */
.art-tags{display:flex;gap:8px;flex-wrap:wrap;margin:2.5em 0 1.5em}
.art-tag{
  padding:5px 13px;border-radius:100px;
  border:1px solid var(--border2);color:var(--text3);
  font-size:.73rem;font-weight:500;font-family:'Plus Jakarta Sans',sans-serif;
  cursor:pointer;transition:all .2s;
}
.art-tag:hover{color:var(--brand-light);border-color:rgba(29,92,126,.35)}
.author-bio{
  display:flex;gap:18px;padding:26px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:16px;margin-top:2.5em;
}
.bio-avatar{
  width:54px;height:54px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.95rem;font-weight:800;color:#fff;
}
.bio-info h4{font-size:.93rem;font-weight:700;margin-bottom:3px}
.bio-info .bio-role{font-size:.74rem;color:var(--brand-light);margin-bottom:8px;font-family:'Plus Jakarta Sans',sans-serif}
.bio-info p{font-size:.82rem;color:var(--text2);line-height:1.65;font-family:'Plus Jakarta Sans',sans-serif}

/* Sidebar */
.art-sidebar{
  padding-top:24px;position:sticky;top:88px;
  height:calc(100vh - 88px);overflow-y:auto;scrollbar-width:none;
}
.art-sidebar::-webkit-scrollbar{display:none}
.sidebar-pad{padding:40px 24px}

/* TOC */
.toc-block{margin-bottom:32px}
.toc-head{
  font-size:.67rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--text3);margin-bottom:12px;
}
.toc-list{list-style:none;display:grid;gap:1px}
.toc-li a{
  display:block;padding:7px 11px;border-radius:7px;
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.79rem;color:var(--text3);
  transition:all .2s;line-height:1.4;
  border-left:2px solid transparent;
}
.toc-li a:hover{color:var(--text2);background:rgba(255,255,255,.03);border-left-color:var(--border2)}
.toc-li.act a{color:var(--brand-light);background:rgba(29,92,126,.09);border-left-color:var(--brand-light)}
.toc-li.sub a{padding-left:20px;font-size:.75rem}

/* Progress ring */
.progress-ring-wrap{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.progress-ring-wrap svg{transform:rotate(-90deg)}
.progress-ring-label{font-size:.75rem;color:var(--text3);line-height:1.4}
.progress-ring-label span{display:block;font-size:.95rem;font-weight:700;color:var(--brand-light);font-family:'Plus Jakarta Sans',sans-serif}

/* Sidebar CTA */
.sb-cta{
  padding:22px;background:rgba(29,92,126,.08);
  border:1px solid rgba(29,92,126,.2);border-radius:13px;
  margin-bottom:26px;
}
.sb-cta h4{font-family:'Plus Jakarta Sans',sans-serif;font-size:.93rem;font-weight:700;margin-bottom:7px}
.sb-cta p{font-size:.78rem;color:var(--text2);line-height:1.6;margin-bottom:14px}
.sb-cta-btn{
  width:100%;padding:10px;border-radius:8px;
  background:var(--brand);border:none;color:#fff;
  font-size:.82rem;font-weight:600;cursor:pointer;
  font-family:'Plus Jakarta Sans',sans-serif;transition:background .2s;
}
.sb-cta-btn:hover{background:var(--brand-2)}

/* Related */
.related-block{}
.rel-card{
  padding:13px 0;border-bottom:1px solid var(--border);
  cursor:pointer;transition:padding .2s;
}
.rel-card:last-child{border-bottom:none}
.rel-card:hover{padding-left:5px}
.rel-cat{font-size:.65rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--brand-light);margin-bottom:5px}
.rel-card h5{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:.82rem;font-weight:700;
  line-height:1.35;color:var(--text2);transition:color .2s;
}
.rel-card:hover h5{color:var(--text)}
.rel-meta{font-size:.69rem;color:var(--text3);margin-top:5px}

/* Footer (matches main homepage) */
.site-footer.site-footer--main{
  padding:60px 32px 32px;border-top:1px solid #1e293b;background:#0b1220;
}
.site-footer.site-footer--main .footer-inner{max-width:1200px;margin:0 auto}
.site-footer.site-footer--main .footer-top{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:56px;margin-bottom:48px;
}
.site-footer.site-footer--main .footer-brand p{
  font-size:14px;color:#94a3b8;margin-top:14px;max-width:240px;line-height:1.7;
}
.site-footer.site-footer--main .footer-brand-row{display:flex;align-items:center;gap:10px}
.site-footer.site-footer--main .footer-logo-text{
  font-size:18px;font-weight:700;color:#e2e8f0;letter-spacing:-0.3px;
}
.site-footer.site-footer--main .footer-logo-text span{color:#60a5fa}
.site-footer.site-footer--main .nav-logo-mark{
  width:32px;height:32px;border-radius:8px;background:#1D5C7E;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#fff;
}
.site-footer.site-footer--main .footer-col h4{
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;
  color:#93c5fd;margin-bottom:16px;
}
.site-footer.site-footer--main .footer-col a{
  display:block;font-size:14px;color:#cbd5e1;text-decoration:none;margin-bottom:10px;transition:color .2s;
}
.site-footer.site-footer--main .footer-col a:hover{color:#93c5fd}
.site-footer.site-footer--main .footer-bottom{
  display:flex;justify-content:space-between;align-items:center;padding-top:24px;
  border-top:1px solid #1e293b;flex-wrap:wrap;gap:16px;
}
.site-footer.site-footer--main .footer-bottom p{font-size:13px;color:#94a3b8;margin:0}
.site-footer.site-footer--main .social-row{display:flex;gap:10px}
.site-footer.site-footer--main .social-btn{
  width:34px;height:34px;border-radius:8px;background:#111827;border:1px solid #334155;
  display:flex;align-items:center;justify-content:center;font-size:14px;color:#cbd5e1;
  text-decoration:none;transition:all .2s;
}
.site-footer.site-footer--main .social-btn:hover{
  background:#1e293b;border-color:#475569;color:#93c5fd;
}
@media(max-width:900px){
  .site-footer.site-footer--main .footer-top{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:640px){
  .site-footer.site-footer--main .footer-top{grid-template-columns:1fr}
}

/* ════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════ */
@media(max-width:1150px){
  .art-page-wrap{grid-template-columns:1fr}
  .art-sidebar{position:static;height:auto}
  .sidebar-pad{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:32px 5%}
  .toc-block{display:none}
  .progress-ring-wrap{display:none}
}
@media(max-width:960px){
  .feat-hero-card{grid-template-columns:1fr}
  .feat-visual{min-height:220px}
  .feat-secondary{grid-template-columns:1fr}
  .art-grid{grid-template-columns:1fr 1fr}
  .nl-card{grid-template-columns:1fr;padding:36px}
  .nav-links{display:none}
  .compare-grid{grid-template-columns:1fr}
  .sidebar-pad{grid-template-columns:1fr}
}
@media(max-width:640px){
  .art-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .art-body h2{font-size:1.3rem}
  .art-hero h1{font-size:1.75rem}
  .art-body{font-size:.98rem}
  .blog-hero h1{font-size:2.2rem}
  .blog-hero-stats{gap:22px}
  .author-bio{flex-direction:column}
  .art-meta-bar{gap:14px}
}

/* Hub link cards */
a.art-card, a.feat-sec-card, a.feat-hero-card { color: inherit; cursor: pointer; display: flex; flex-direction: column; text-decoration: none; }
a.feat-hero-card { display: grid; }
.art-card-body h3, .feat-body h2, .sec-body h3 { color: var(--text); }
.kb-hub-nav-fix { font-size: .8rem !important; }