/* ============================================================
   RSB.ir — ARTICLES KNOWLEDGE HUB (Aurora Glass edition)
   مقالات — شرکت راهبری صنایع بهساز
   Loaded only by Articles.php / Article_Details.php via $extraCss
   ============================================================ */

:root{
  --art-navy:#071a30;
  --art-blue:#0056b3;
  --art-cyan:#0088CC;
  --art-ice:#7de3ff;
  --art-gold:#f5a623;
  --art-glass:rgba(255,255,255,.72);
  --art-glass-brd:rgba(255,255,255,.65);
  --art-glass-br:rgba(255,255,255,.65);
  --art-ease:cubic-bezier(.22,.61,.36,1);
  --art-spring:cubic-bezier(.34,1.56,.64,1);
}

/* ============================================================
   1. HERO — animated aurora mesh
   ============================================================ */
.rsb-articles-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:96px 0 130px;
  background:linear-gradient(160deg,#04101f 0%,#072a52 45%,#0a4a7a 100%);
  isolation:isolate;
}
/* aurora blobs */
.rsb-articles-hero .aurora{position:absolute;inset:0;z-index:0;filter:blur(70px);opacity:.75;pointer-events:none}
.rsb-articles-hero .aurora i{
  position:absolute;display:block;border-radius:50%;
  animation:artAurora 16s ease-in-out infinite;
  will-change:transform;
}
.rsb-articles-hero .aurora i:nth-child(1){width:520px;height:520px;top:-160px;right:-120px;background:radial-gradient(circle,rgba(0,136,204,.55),transparent 65%)}
.rsb-articles-hero .aurora i:nth-child(2){width:420px;height:420px;bottom:-140px;left:-100px;background:radial-gradient(circle,rgba(125,227,255,.35),transparent 65%);animation-delay:-5s;animation-duration:20s}
.rsb-articles-hero .aurora i:nth-child(3){width:360px;height:360px;top:30%;left:35%;background:radial-gradient(circle,rgba(245,166,35,.18),transparent 65%);animation-delay:-9s;animation-duration:22s}
@keyframes artAurora{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(-60px,40px) scale(1.15)}
  66%{transform:translate(50px,-30px) scale(.92)}
}
/* fine grid overlay */
.rsb-articles-hero .grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.5;
  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:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 75%);
          mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 75%);
}
/* floating particles */
.rsb-articles-hero .spark{
  position:absolute;z-index:1;width:6px;height:6px;border-radius:50%;
  background:rgba(125,227,255,.8);box-shadow:0 0 12px rgba(125,227,255,.9);
  pointer-events:none;animation:artSpark linear infinite;
}
@keyframes artSpark{
  0%{transform:translateY(0) scale(1);opacity:0}
  10%{opacity:.9}
  90%{opacity:.4}
  100%{transform:translateY(-46vh) scale(.4);opacity:0}
}
.rsb-articles-hero .container{position:relative;z-index:2}

/* eyebrow chip */
.art-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 20px;border-radius:50px;margin-bottom:22px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  font-size:13px;font-weight:600;letter-spacing:.02em;color:rgba(255,255,255,.9);
}
.art-eyebrow .dot{
  width:8px;height:8px;border-radius:50%;background:var(--art-ice);
  box-shadow:0 0 0 0 rgba(125,227,255,.6);animation:artPing 2s ease-out infinite;
}
@keyframes artPing{0%{box-shadow:0 0 0 0 rgba(125,227,255,.55)}70%{box-shadow:0 0 0 12px rgba(125,227,255,0)}100%{box-shadow:0 0 0 0 rgba(125,227,255,0)}}

/* headline with shimmer */
.rsb-articles-hero h1{
  font-size:clamp(2.1rem,5.2vw,3.6rem);font-weight:900;line-height:1.35;
  margin:0 0 18px;text-shadow:0 4px 30px rgba(0,0,0,.35);
}
.rsb-articles-hero h1 .grad{
  background:linear-gradient(110deg,#fff 20%,var(--art-ice) 45%,#fff 70%);
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:artShimmer 5s linear infinite;
}
@keyframes artShimmer{0%{background-position:220% 0}100%{background-position:-20% 0}}

.rsb-articles-hero .lead-txt{
  font-size:clamp(1rem,1.8vw,1.2rem);color:rgba(255,255,255,.82);
  line-height:2;max-width:640px;margin:0 auto 34px;
}

/* stats with animated counters */
.rsb-articles-hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:40px;
}
.art-stat{
  min-width:150px;padding:20px 26px;border-radius:20px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .4s var(--art-spring),background .4s,border-color .4s;
}
.art-stat:hover{transform:translateY(-6px);background:rgba(255,255,255,.12);border-color:rgba(125,227,255,.4)}
.art-stat .num{
  font-size:2.3rem;font-weight:900;line-height:1;color:#fff;
  display:flex;align-items:baseline;justify-content:center;gap:4px;
}
.art-stat .num .suffix{font-size:1.1rem;color:var(--art-ice)}
.art-stat .label{font-size:.82rem;color:rgba(255,255,255,.65);margin-top:8px}

/* wave divider */
.art-wave{position:absolute;bottom:-1px;left:0;right:0;z-index:2;line-height:0}
.art-wave svg{display:block;width:100%;height:70px}

/* ============================================================
   2. SEARCH — floating glass capsule
   ============================================================ */
.rsb-articles-search-wrap{position:relative;z-index:20;max-width:620px;margin:-46px auto 0}
.rsb-articles-search{
  display:flex;align-items:center;gap:12px;
  background:var(--art-glass);backdrop-filter:blur(24px) saturate(160%);
  -webkit-backdrop-filter:blur(24px) saturate(160%);
  border:1px solid var(--art-glass-br);border-radius:60px;
  padding:8px 8px 8px 22px;
  box-shadow:0 24px 60px rgba(4,42,84,.18),inset 0 1px 0 rgba(255,255,255,.8);
  transition:box-shadow .4s,transform .4s var(--art-spring),border-color .4s;
}
.rsb-articles-search:focus-within{
  border-color:rgba(0,136,204,.55);transform:translateY(-3px);
  box-shadow:0 30px 70px rgba(0,86,179,.24),0 0 0 5px rgba(0,136,204,.1);
}
.rsb-articles-search .s-icon{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  color:#fff;font-size:15px;box-shadow:0 6px 16px rgba(0,86,179,.35);
}
.rsb-articles-search input{
  border:none;outline:none;background:transparent;flex:1;min-width:0;
  font:inherit;font-size:15px;color:var(--rsb-text);padding:10px 0;
}
.rsb-articles-search input::placeholder{color:var(--rsb-muted)}
.rsb-articles-search button{
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  color:#fff;border:none;border-radius:50px;padding:11px 26px;
  font-weight:700;font-size:14px;cursor:pointer;white-space:nowrap;
  transition:transform .35s var(--art-spring),box-shadow .35s;
  box-shadow:0 8px 20px rgba(0,86,179,.3);
}
.rsb-articles-search button:hover{transform:translateY(-2px) scale(1.04);box-shadow:0 12px 28px rgba(0,86,179,.4)}
.rsb-articles-search button:active{transform:scale(.97)}

/* ============================================================
   3. FILTER PILLS — animated active state
   ============================================================ */
.rsb-articles-filters{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  margin:44px 0 52px;
}
.rsb-articles-filter{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  padding:11px 24px;border-radius:50px;cursor:pointer;
  border:1.5px solid var(--rsb-panel-border);background:var(--rsb-panel);
  color:var(--rsb-text);font-weight:600;font-size:14px;font-family:inherit;
  transition:transform .35s var(--art-spring),box-shadow .35s,border-color .35s,color .35s,background .35s;
  overflow:hidden;
}
.rsb-articles-filter i{font-size:13px;transition:transform .35s var(--art-spring)}
.rsb-articles-filter:hover{transform:translateY(-3px);border-color:rgba(0,136,204,.5);color:var(--art-blue);box-shadow:0 10px 24px rgba(0,86,179,.14)}
.rsb-articles-filter:hover i{transform:scale(1.15) rotate(-8deg)}
.rsb-articles-filter.is-active{
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  border-color:transparent;color:#fff;
  box-shadow:0 12px 28px rgba(0,86,179,.35),inset 0 1px 0 rgba(255,255,255,.25);
  transform:translateY(-2px);
}
.rsb-articles-filter .count{
  background:rgba(0,0,0,.08);border-radius:20px;padding:2px 9px;font-size:11px;font-weight:700;
  transition:background .35s;
}
.rsb-articles-filter.is-active .count{background:rgba(255,255,255,.25)}

/* ============================================================
   4. FEATURED — cinematic card with animated gradient border
   ============================================================ */
.rsb-articles-featured{
  position:relative;display:block;border-radius:26px;margin-bottom:64px;
  text-decoration:none;isolation:isolate;
  padding:3px; /* gradient border track */
  background:linear-gradient(120deg,rgba(0,86,179,.5),rgba(0,136,204,.35),rgba(125,227,255,.4),rgba(0,86,179,.5));
  background-size:300% 300%;
  animation:artBorderFlow 8s ease infinite;
  box-shadow:0 30px 80px rgba(4,42,84,.22);
  transition:transform .5s var(--art-spring),box-shadow .5s;
}
@keyframes artBorderFlow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.rsb-articles-featured:hover{transform:translateY(-8px);box-shadow:0 40px 90px rgba(4,42,84,.3)}
.rsb-articles-featured .feat-inner{
  position:relative;border-radius:23px;overflow:hidden;background:var(--rsb-panel);
}
.rsb-articles-featured-img{position:relative;height:420px;overflow:hidden}
.rsb-articles-featured-img img{
  width:100%;height:100%;object-fit:cover;
  transform:scale(1.02);
  transition:transform 6s cubic-bezier(.22,.61,.36,1);
  will-change:transform;
}
.rsb-articles-featured:hover .rsb-articles-featured-img img{transform:scale(1.12)}
.rsb-articles-featured-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(4,16,31,.92) 0%,rgba(4,16,31,.45) 45%,rgba(4,16,31,.05) 75%);
}
/* shine sweep */
.rsb-articles-featured .feat-inner::after{
  content:"";position:absolute;top:0;bottom:0;width:45%;z-index:3;pointer-events:none;
  background:linear-gradient(105deg,transparent 20%,rgba(255,255,255,.14) 50%,transparent 80%);
  right:-60%;transform:skewX(-18deg);
  transition:right 1.1s cubic-bezier(.22,.61,.36,1);
}
.rsb-articles-featured:hover .feat-inner::after{right:130%}

.rsb-articles-featured-badge{
  position:absolute;top:22px;right:22px;z-index:4;
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 20px;border-radius:50px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
  color:var(--art-blue);font-weight:800;font-size:13px;
  box-shadow:0 8px 24px rgba(0,0,0,.2);
}
.rsb-articles-featured-badge i{color:var(--art-gold);animation:artStar 2.4s ease-in-out infinite}
@keyframes artStar{0%,100%{transform:scale(1) rotate(0)}50%{transform:scale(1.25) rotate(12deg)}}

.rsb-articles-featured-content{
  position:absolute;bottom:0;left:0;right:0;z-index:4;
  padding:36px 40px;color:#fff;
}
.rsb-articles-featured-content h2{
  font-size:clamp(1.5rem,3.2vw,2.15rem);font-weight:900;line-height:1.45;
  margin:0 0 14px;text-shadow:0 2px 16px rgba(0,0,0,.5);
}
.rsb-articles-featured-content p{
  color:rgba(255,255,255,.88);font-size:15.5px;line-height:1.9;
  max-width:700px;margin:0 0 20px;
}
.rsb-articles-featured-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px}
.rsb-articles-featured-meta .tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 16px;border-radius:30px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(10px);color:rgba(255,255,255,.92);font-size:12.5px;font-weight:600;
}
.rsb-articles-featured-read{
  display:inline-flex;align-items:center;gap:11px;margin-top:20px;
  padding:12px 28px;border-radius:50px;
  background:#fff;color:var(--art-blue);font-weight:800;font-size:14px;
  box-shadow:0 10px 30px rgba(0,0,0,.28);
  transition:transform .4s var(--art-spring),box-shadow .4s;
}
.rsb-articles-featured-read i{transition:transform .35s}
.rsb-articles-featured:hover .rsb-articles-featured-read{transform:translateX(-8px);box-shadow:0 14px 36px rgba(0,0,0,.35)}
.rsb-articles-featured:hover .rsb-articles-featured-read i{transform:translateX(-5px)}

/* ============================================================
   5. CARDS — glass with 3D tilt + staggered reveal
   ============================================================ */
.rsb-articles-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));
  gap:30px;perspective:1400px;
}
.rsb-article-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--rsb-panel);border-radius:22px;overflow:hidden;
  border:1px solid var(--rsb-panel-border);
  box-shadow:0 10px 30px rgba(4,42,84,.08);
  transition:transform .5s var(--art-spring),box-shadow .5s,border-color .4s;
  transform-style:preserve-3d;will-change:transform;
  text-decoration:none;
}
.rsb-article-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;z-index:5;
  background:linear-gradient(90deg,var(--art-blue),var(--art-cyan),var(--art-ice));
  background-size:200% 100%;
  transform:scaleX(0);transform-origin:right;
  transition:transform .55s cubic-bezier(.22,.61,.36,1);
}
.rsb-article-card:hover::before{transform:scaleX(1);animation:artTopFlow 2.4s linear infinite}
@keyframes artTopFlow{0%{background-position:0% 0}100%{background-position:200% 0}}
.rsb-article-card:hover{
  border-color:rgba(0,136,204,.4);
  box-shadow:0 30px 70px rgba(4,42,84,.2);
}
/* glow blob behind card on hover */
.rsb-article-card::after{
  content:"";position:absolute;inset:-1px;border-radius:22px;z-index:-1;opacity:0;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%),rgba(0,136,204,.12),transparent 45%);
  transition:opacity .4s;pointer-events:none;
}
.rsb-article-card:hover::after{opacity:1}

.rsb-article-card-img{position:relative;height:210px;overflow:hidden;display:block}
.rsb-article-card-img img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 1s cubic-bezier(.22,.61,.36,1),filter .5s;
}
.rsb-article-card:hover .rsb-article-card-img img{transform:scale(1.1) rotate(.5deg)}
.rsb-article-card-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(4,16,31,.4),transparent 55%);
  opacity:0;transition:opacity .45s;
}
.rsb-article-card:hover .rsb-article-card-img::after{opacity:1}

.rsb-article-card-topic{
  position:absolute;top:16px;right:16px;z-index:3;
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 16px;border-radius:30px;font-size:12px;font-weight:800;color:#fff;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 6px 16px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.25);
  letter-spacing:.01em;
}
.rsb-article-card-topic i{font-size:11px}
.rsb-article-card-topic[data-topic="monitoring"]{background:linear-gradient(135deg,rgba(0,86,179,.92),rgba(0,136,204,.92))}
.rsb-article-card-topic[data-topic="cctv"]{background:linear-gradient(135deg,rgba(13,115,84,.92),rgba(70,180,130,.92))}
.rsb-article-card-topic[data-topic="fire"]{background:linear-gradient(135deg,rgba(196,44,44,.92),rgba(247,127,0,.92))}
.rsb-article-card-topic[data-topic="passive"]{background:linear-gradient(135deg,rgba(38,80,115,.92),rgba(96,150,180,.92))}
.rsb-article-card-topic[data-topic="bms"]{background:linear-gradient(135deg,rgba(86,60,140,.92),rgba(155,93,229,.92))}
.rsb-article-card-topic[data-topic="center"]{background:linear-gradient(135deg,rgba(0,110,160,.92),rgba(0,180,216,.92))}

.rsb-article-card-body{padding:26px;display:flex;flex-direction:column;flex:1;position:relative}
.rsb-article-card-body h3{
  font-size:1.17rem;font-weight:800;line-height:1.6;color:#0e2a44;
  margin:0 0 10px;transition:color .35s;
}
.rsb-article-card:hover .rsb-article-card-body h3{color:var(--art-blue)}
.rsb-article-card-body p{
  color:#0d1b2a;font-size:14px;line-height:1.85;flex:1;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.rsb-article-card-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:20px;padding-top:16px;border-top:1px dashed var(--rsb-panel-border);
  font-size:12px;color:#33526a;
}
.rsb-article-card-meta .read-time,.rsb-article-card-meta .date{display:flex;align-items:center;gap:6px}
.rsb-article-card-meta i{color:var(--art-cyan)}
.rsb-article-card-read{
  display:inline-flex;align-items:center;gap:9px;margin-top:18px;
  color:var(--art-blue);font-weight:700;font-size:14px;
}
.rsb-article-card-read .arrow{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:12px;
  background:var(--rsb-accent-light);color:var(--art-blue);
  transition:transform .4s var(--art-spring),background .35s,color .35s;
}
.rsb-article-card:hover .rsb-article-card-read .arrow{
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  color:#fff;transform:translateX(-6px);
}

/* card entrance (JS adds .is-in) */
.art-enter{opacity:0;transform:translateY(46px) scale(.97)}
.art-enter.is-in{opacity:1;transform:none;transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.art-enter.is-in[data-delay="1"]{transition-delay:.08s}
.art-enter.is-in[data-delay="2"]{transition-delay:.16s}
.art-enter.is-in[data-delay="3"]{transition-delay:.24s}
.art-enter.is-in[data-delay="4"]{transition-delay:.32s}

/* filter hide/show */
.art-hidden{display:none!important}
.art-pop{animation:artPop .55s cubic-bezier(.16,1,.3,1) both}
@keyframes artPop{from{opacity:0;transform:translateY(26px) scale(.96)}to{opacity:1;transform:none}}

/* empty state */
.rsb-articles-empty{text-align:center;padding:70px 20px;color:#1e3a54}
.rsb-articles-empty .ico{
  width:86px;height:86px;margin:0 auto 20px;border-radius:26px;
  display:flex;align-items:center;justify-content:center;font-size:34px;
  background:var(--rsb-accent-light);color:var(--art-cyan);
  animation:artFloat 3.4s ease-in-out infinite;
}
@keyframes artFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.rsb-articles-empty h3{color:var(--rsb-text);margin-bottom:8px;font-weight:800}

/* ============================================================
   6. CTA — animated gradient panel
   ============================================================ */
.rsb-articles-cta{
  position:relative;margin-top:72px;padding:56px 40px;border-radius:28px;
  text-align:center;overflow:hidden;isolation:isolate;color:#fff;
  background:linear-gradient(135deg,#04101f 0%,#0a3a66 55%,#0056b3 100%);
  box-shadow:0 30px 70px rgba(4,42,84,.28);
}
.rsb-articles-cta::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.5;filter:blur(60px);
  background:
    radial-gradient(300px 300px at 15% 20%,rgba(0,136,204,.5),transparent 70%),
    radial-gradient(300px 300px at 85% 80%,rgba(125,227,255,.35),transparent 70%);
  animation:artAurora 14s ease-in-out infinite;
}
.rsb-articles-cta::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.rsb-articles-cta h3{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:900;margin:0 0 12px}
.rsb-articles-cta p{color:rgba(255,255,255,.8);font-size:15px;line-height:1.9;max-width:560px;margin:0 auto 28px}
.rsb-articles-cta .btn-grad{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  background:#fff;color:var(--art-blue);border:none;border-radius:50px;
  padding:15px 38px;font-weight:800;font-size:15.5px;
  box-shadow:0 14px 36px rgba(0,0,0,.3);
  transition:transform .4s var(--art-spring),box-shadow .4s;
}
.rsb-articles-cta .btn-grad:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 20px 44px rgba(0,0,0,.4);color:var(--art-cyan)}
.rsb-articles-cta .btn-grad i{transition:transform .35s}
.rsb-articles-cta .btn-grad:hover i{transform:translateX(-4px)}

/* ============================================================
   7. ARTICLE DETAIL — reader
   ============================================================ */

/* progress bar + percentage bubble */
.rsb-read-progress{
  position:fixed;top:0;left:0;right:0;height:4px;z-index:10000;
  pointer-events:none;background:transparent;
}
.rsb-read-progress__bar{
  height:100%;width:0;
  background:linear-gradient(90deg,#0056b3,#0088CC 60%,#7de3ff);
  background-size:200% 100%;animation:artTopFlow 3s linear infinite;
  border-radius:0 4px 4px 0;
  box-shadow:0 0 14px rgba(0,136,204,.6);
}
.rsb-read-progress__pct{
  position:fixed;top:12px;left:16px;z-index:10000;
  padding:5px 13px;border-radius:30px;font-size:11.5px;font-weight:800;
  background:rgba(4,16,31,.75);color:#fff;backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.15);
  opacity:0;transform:translateY(-8px);transition:opacity .3s,transform .3s;
  pointer-events:none;
}
.rsb-read-progress__pct.is-show{opacity:1;transform:none}

/* hero */
.rsb-article-detail-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:64px 0 110px;isolation:isolate;
  background:linear-gradient(160deg,#04101f 0%,#072a52 50%,#0a4a7a 100%);
}
.rsb-article-detail-hero .aurora{position:absolute;inset:0;z-index:0;filter:blur(70px);opacity:.65;pointer-events:none}
.rsb-article-detail-hero .aurora i{
  position:absolute;display:block;border-radius:50%;
  animation:artAurora 18s ease-in-out infinite;
}
.rsb-article-detail-hero .aurora i:nth-child(1){width:480px;height:480px;top:-140px;left:-100px;background:radial-gradient(circle,rgba(0,136,204,.5),transparent 65%)}
.rsb-article-detail-hero .aurora i:nth-child(2){width:380px;height:380px;bottom:-120px;right:-80px;background:radial-gradient(circle,rgba(125,227,255,.35),transparent 65%);animation-delay:-7s}
.rsb-article-detail-hero .grid-lines{
  position:absolute;inset:0;z-index:1;opacity:.4;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 25%,transparent 72%);
          mask-image:radial-gradient(ellipse at 50% 30%,#000 25%,transparent 72%);
}
.rsb-article-detail-hero .container{position:relative;z-index:2}

.art-back-pill{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:26px;
  padding:10px 22px;border-radius:50px;cursor:pointer;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(12px);color:rgba(255,255,255,.85);
  font-weight:600;font-size:13.5px;font-family:inherit;
  transition:transform .35s var(--art-spring),background .35s,border-color .35s;
}
.art-back-pill:hover{background:rgba(255,255,255,.15);border-color:rgba(125,227,255,.45);transform:translateX(6px);color:#fff}
.art-back-pill i{transition:transform .35s}
.art-back-pill:hover i{transform:translateX(4px)}

.rsb-article-detail-hero .topic-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 22px;border-radius:50px;font-size:13px;font-weight:800;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(12px);margin-bottom:22px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.2);
}
.rsb-article-detail-hero h1{
  font-size:clamp(1.7rem,4.2vw,2.6rem);font-weight:900;line-height:1.45;
  margin:0 0 18px;max-width:860px;text-shadow:0 3px 24px rgba(0,0,0,.35);
}
.rsb-article-detail-hero .summary{
  font-size:1.08rem;color:rgba(255,255,255,.85);line-height:2;
  max-width:760px;margin:0 0 26px;
}
.rsb-article-detail-hero-meta{
  display:flex;flex-wrap:wrap;gap:12px;
}
.rsb-article-detail-hero-meta span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:30px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  backdrop-filter:blur(10px);color:rgba(255,255,255,.85);
}
.rsb-article-detail-hero-meta i{color:var(--art-ice)}

/* layout */
.rsb-article-layout{
  display:grid;grid-template-columns:270px minmax(0,1fr);gap:40px;
  margin-top:-64px;position:relative;z-index:5;
}

/* TOC */
.rsb-article-toc{
  position:sticky;top:96px;align-self:start;
  background:var(--art-glass);backdrop-filter:blur(24px) saturate(160%);
  -webkit-backdrop-filter:blur(24px) saturate(160%);
  border:1px solid var(--art-glass-br);border-radius:20px;
  padding:26px 22px;max-height:calc(100vh - 130px);overflow-y:auto;
  box-shadow:0 20px 50px rgba(4,42,84,.14),inset 0 1px 0 rgba(255,255,255,.8);
}
.rsb-article-toc h4{
  font-size:13.5px;font-weight:800;color:var(--rsb-text);
  margin:0 0 16px;padding-bottom:14px;
  border-bottom:2px solid rgba(0,136,204,.18);
  display:flex;align-items:center;gap:9px;letter-spacing:.01em;
}
.rsb-article-toc h4 i{
  width:30px;height:30px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:12px;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));color:#fff;
}
.rsb-article-toc ul{list-style:none;padding:0;margin:0}
.rsb-article-toc li{margin-bottom:4px}
.rsb-article-toc a{
  position:relative;display:block;padding:9px 14px 9px 10px;border-radius:12px;
  font-size:13px;line-height:1.7;color:#1e3a54;
  text-decoration:none;transition:color .3s,background .3s,transform .3s;
  border-right:3px solid transparent;
}
.rsb-article-toc a::before{
  content:"";position:absolute;right:-3px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:70%;border-radius:3px;background:linear-gradient(var(--art-blue),var(--art-cyan));
  transition:transform .3s;
}
.rsb-article-toc a:hover{background:rgba(0,136,204,.07);color:var(--art-blue);transform:translateX(-3px)}
.rsb-article-toc a.is-active{
  background:rgba(0,136,204,.09);color:var(--art-blue);font-weight:700;
}
.rsb-article-toc a.is-active::before{transform:translateY(-50%) scaleY(1)}

/* content card */
.rsb-article-content-card{
  background:var(--rsb-panel);border:1px solid var(--rsb-panel-border);
  border-radius:24px;padding:44px;
  box-shadow:0 24px 60px rgba(4,42,84,.12);
}
.rsb-article-detail-img{
  position:relative;border-radius:18px;overflow:hidden;margin-bottom:36px;
  box-shadow:0 18px 44px rgba(4,42,84,.16);
}
.rsb-article-detail-img img{width:100%;display:block;transition:transform 1.4s cubic-bezier(.22,.61,.36,1)}
.rsb-article-detail-img:hover img{transform:scale(1.04)}

/* typography */
.rsb-article-content{font-size:16.5px;line-height:2.15;color:#1a2733}
.rsb-article-content p,
.rsb-article-content li,
.rsb-article-content td,
.rsb-article-content blockquote{color:#1a2733}
.rsb-article-content>p:first-of-type::first-letter{
  font-size:3.1em;font-weight:900;float:right;line-height:.85;
  margin-left:12px;color:var(--art-blue);
}
.rsb-article-content h2{
  position:relative;font-size:1.55rem;font-weight:900;color:#0e2a44;
  margin:44px 0 20px;padding:0 18px 14px 0;scroll-margin-top:110px;
}
.rsb-article-content h2::before{
  content:"";position:absolute;right:0;top:6px;bottom:20px;width:5px;border-radius:5px;
  background:linear-gradient(var(--art-blue),var(--art-cyan));
}
.rsb-article-content h2::after{
  content:"";position:absolute;right:18px;bottom:0;width:64px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--art-cyan),transparent);
}
.rsb-article-content h3{
  font-size:1.22rem;font-weight:800;color:#00518f;
  margin:32px 0 14px;scroll-margin-top:110px;
}
.rsb-article-content p{margin-bottom:20px;text-align:justify}
.rsb-article-content ul,.rsb-article-content ol{margin-bottom:22px;padding-right:8px;list-style:none}
.rsb-article-content ul li,.rsb-article-content ol li{
  position:relative;margin-bottom:12px;padding-right:30px;line-height:2;
}
.rsb-article-content ul li::before{
  content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:0;top:2px;font-size:14px;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.rsb-article-content ol{counter-reset:artol}
.rsb-article-content ol li{counter-increment:artol}
.rsb-article-content ol li::before{
  content:counter(artol);position:absolute;right:0;top:4px;
  width:22px;height:22px;border-radius:7px;font-size:11.5px;font-weight:800;
  display:flex;align-items:center;justify-content:center;color:#fff;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  box-shadow:0 3px 8px rgba(0,86,179,.3);
}
.rsb-article-content a{
  color:var(--art-blue);text-decoration:none;font-weight:700;
  background-image:linear-gradient(var(--art-cyan),var(--art-cyan));
  background-size:100% 2px;background-position:0 100%;background-repeat:no-repeat;
  transition:color .3s,background-size .35s;padding-bottom:2px;
}
.rsb-article-content a:hover{color:var(--art-cyan);background-size:0% 2px}
.rsb-article-content strong{color:var(--art-blue);font-weight:800}
.rsb-article-content table{
  width:100%;border-collapse:separate;border-spacing:0;font-size:14px;
  margin:26px 0;border:1px solid var(--rsb-panel-border);border-radius:14px;overflow:hidden;
}
.rsb-article-content th{
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  color:#fff;padding:12px 14px;font-weight:700;text-align:right;
}
.rsb-article-content td{padding:11px 14px;border-top:1px solid var(--rsb-panel-border)}
.rsb-article-content tr:nth-child(even) td{background:rgba(0,136,204,.035)}
.rsb-article-content tr:hover td{background:rgba(0,136,204,.07)}
.rsb-article-content img{max-width:100%;border-radius:14px}

/* author box */
.rsb-article-author{
  display:flex;align-items:center;gap:18px;
  margin-top:44px;padding:26px;border-radius:20px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(0,86,179,.06),rgba(0,136,204,.04));
  border:1px solid rgba(0,136,204,.18);
}
.rsb-article-author::before{
  content:"";position:absolute;top:-40px;left:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,136,204,.12),transparent 70%);
}
.rsb-article-author-avatar{
  width:60px;height:60px;border-radius:18px;flex-shrink:0;position:relative;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:24px;
  box-shadow:0 10px 24px rgba(0,86,179,.35);
  animation:artFloat 4s ease-in-out infinite;
}
.rsb-article-author-info h4{font-size:15.5px;font-weight:800;color:var(--rsb-text);margin:0 0 3px}
.rsb-article-author-info p{font-size:13px;color:#1e3a54;margin:0}

/* share */
.rsb-article-share{
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:36px;
  padding-top:26px;border-top:1px dashed var(--rsb-panel-border);
}
.rsb-article-share .share-label{font-weight:700;color:var(--rsb-text);font-size:14px;display:flex;align-items:center;gap:8px}
.rsb-article-share-btn{
  width:42px;height:42px;border-radius:14px;display:flex;
  align-items:center;justify-content:center;color:#fff;
  text-decoration:none;font-size:16px;cursor:pointer;border:none;font-family:inherit;
  transition:transform .4s var(--art-spring),box-shadow .4s;
  box-shadow:0 6px 16px rgba(4,42,84,.18);
}
.rsb-article-share-btn:hover{transform:translateY(-5px) rotate(-6deg) scale(1.08)}
.rsb-article-share-btn--tg{background:linear-gradient(135deg,#2aabee,#1d8fc9)}
.rsb-article-share-btn--li{background:linear-gradient(135deg,#0a66c2,#084d94)}
.rsb-article-share-btn--tw{background:linear-gradient(135deg,#1d9bf0,#0d7fd4)}
.rsb-article-share-btn--wa{background:linear-gradient(135deg,#25d366,#1aab52)}
.rsb-article-share-btn--cp{background:linear-gradient(135deg,var(--art-blue),var(--art-cyan))}

/* keywords chips */
.art-keywords{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
.art-keywords .kw{
  padding:7px 16px;border-radius:30px;font-size:12px;font-weight:600;
  background:var(--rsb-accent-light);color:var(--art-blue);
  border:1px solid rgba(0,136,204,.2);
  transition:transform .3s var(--art-spring),background .3s,color .3s;
}
.art-keywords .kw:hover{transform:translateY(-3px);background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));color:#fff}

/* related */
.rsb-article-related{margin-top:64px}
.rsb-article-related h2{
  font-size:1.45rem;font-weight:900;margin:0 0 30px;position:relative;padding-bottom:16px;
}
.rsb-article-related h2::after{
  content:"";position:absolute;right:0;bottom:0;width:64px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--art-blue),var(--art-cyan));
}
.rsb-article-related-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px;
}

/* toast */
.rsb-copy-toast{
  position:fixed;bottom:34px;left:50%;z-index:10001;
  transform:translateX(-50%) translateY(90px) scale(.9);
  display:flex;align-items:center;gap:10px;
  padding:13px 30px;border-radius:50px;
  background:rgba(4,16,31,.9);color:#fff;font-weight:700;font-size:14px;
  backdrop-filter:blur(14px);border:1px solid rgba(125,227,255,.3);
  box-shadow:0 18px 50px rgba(4,42,84,.4);
  opacity:0;transition:transform .5s var(--art-spring),opacity .4s;
}
.rsb-copy-toast.is-show{transform:translateX(-50%) translateY(0) scale(1);opacity:1}
.rsb-copy-toast i{color:var(--art-ice)}

/* ============================================================
   7b. IN-CONTENT RICH COMPONENTS
   ============================================================ */

/* ---- Inline figure with caption ---- */
.art-figure{
  margin:34px 0;border-radius:18px;overflow:hidden;
  background:var(--rsb-panel);border:1px solid var(--rsb-panel-border);
  box-shadow:0 16px 40px rgba(4,42,84,.12);
}
.art-figure .af-img{position:relative;overflow:hidden;display:block}
.art-figure .af-img img{width:100%;display:block;transition:transform 1.2s cubic-bezier(.22,.61,.36,1)}
.art-figure:hover .af-img img{transform:scale(1.045)}
.art-figure .af-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(4,16,31,.35),transparent 40%);
  pointer-events:none;
}
.art-figure figcaption{
  display:flex;align-items:flex-start;gap:10px;
  padding:14px 18px;font-size:13px;line-height:1.8;color:#1e3a54;
  background:var(--rsb-panel);
}
.art-figure figcaption i{color:var(--art-cyan);margin-top:4px;flex-shrink:0}
.art-figure--wide{margin-right:-44px;margin-left:-44px}
@media(max-width:767px){.art-figure--wide{margin-right:-20px;margin-left:-20px}}

/* ---- Callout boxes ---- */
.art-callout{
  position:relative;display:flex;gap:16px;align-items:flex-start;
  margin:30px 0;padding:22px 24px;border-radius:16px;
  border:1px solid;border-right-width:5px;
  animation:artCalloutIn .7s cubic-bezier(.16,1,.3,1) both;
}
@keyframes artCalloutIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.art-callout .ac-icon{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:17px;color:#fff;
  box-shadow:0 6px 16px rgba(4,42,84,.18);
}
.art-callout .ac-body strong{display:block;margin-bottom:4px;font-size:14.5px}
.art-callout .ac-body p{margin:0;font-size:14px;line-height:1.9}
.art-callout--tip{background:rgba(0,136,204,.06);border-color:rgba(0,136,204,.35);border-right-color:var(--art-cyan)}
.art-callout--tip .ac-icon{background:linear-gradient(135deg,#0056b3,#0088CC)}
.art-callout--tip .ac-body strong{color:var(--art-blue)}
.art-callout--warn{background:rgba(245,166,35,.07);border-color:rgba(245,166,35,.4);border-right-color:#f5a623}
.art-callout--warn .ac-icon{background:linear-gradient(135deg,#e08e00,#f5a623)}
.art-callout--warn .ac-body strong{color:#b06f00}
.art-callout--danger{background:rgba(214,40,40,.06);border-color:rgba(214,40,40,.35);border-right-color:#d62828}
.art-callout--danger .ac-icon{background:linear-gradient(135deg,#a51d1d,#d62828)}
.art-callout--danger .ac-body strong{color:#a51d1d}
.art-callout--success{background:rgba(13,115,84,.06);border-color:rgba(13,115,84,.35);border-right-color:#0d7354}
.art-callout--success .ac-icon{background:linear-gradient(135deg,#0d7354,#16a085)}
.art-callout--success .ac-body strong{color:#0d7354}
[data-theme="dark"] .art-callout--tip{background:rgba(0,136,204,.1)}
[data-theme="dark"] .art-callout--warn{background:rgba(245,166,35,.1)}
[data-theme="dark"] .art-callout--danger{background:rgba(214,40,40,.1)}
[data-theme="dark"] .art-callout--success{background:rgba(13,115,84,.12)}

/* ---- Stat highlight cards ---- */
.art-stats-row{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:16px;margin:34px 0;
}
.art-stat-card{
  position:relative;text-align:center;padding:26px 16px 22px;border-radius:18px;
  background:var(--rsb-panel);border:1px solid var(--rsb-panel-border);
  box-shadow:0 10px 26px rgba(4,42,84,.08);
  transition:transform .4s var(--art-spring),box-shadow .4s;
  overflow:hidden;
}
.art-stat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--art-blue),var(--art-cyan));
  transform:scaleX(0);transition:transform .45s;transform-origin:center;
}
.art-stat-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(4,42,84,.16)}
.art-stat-card:hover::before{transform:scaleX(1)}
.art-stat-card .asc-num{
  font-size:2.1rem;font-weight:900;line-height:1.1;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.art-stat-card .asc-label{font-size:12.5px;color:#1e3a54;margin-top:8px;line-height:1.7}

/* ---- Step timeline ---- */
.art-steps{margin:36px 0;padding:0;list-style:none;position:relative}
.art-steps::before{
  content:"";position:absolute;right:21px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(var(--art-blue),var(--art-cyan),rgba(0,136,204,.15));
}
.art-steps li{
  position:relative;padding:0 56px 26px 0;
}
.art-steps li:last-child{padding-bottom:4px}
.art-steps .st-num{
  position:absolute;right:0;top:0;width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;color:#fff;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  box-shadow:0 8px 20px rgba(0,86,179,.3);
  transition:transform .4s var(--art-spring);
}
.art-steps li:hover .st-num{transform:scale(1.12) rotate(-6deg)}
.art-steps .st-title{font-weight:800;font-size:15.5px;color:var(--rsb-text);margin-bottom:6px}
.art-steps .st-desc{font-size:14px;color:#1e3a54;line-height:1.95;margin:0}

/* ---- Icon feature grid ---- */
.art-infogrid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:16px;margin:34px 0;
}
.art-infogrid .ai-item{
  padding:22px 18px;border-radius:16px;text-align:center;
  background:var(--rsb-panel);border:1px solid var(--rsb-panel-border);
  transition:transform .4s var(--art-spring),box-shadow .4s,border-color .4s;
}
.art-infogrid .ai-item:hover{
  transform:translateY(-5px);border-color:rgba(0,136,204,.4);
  box-shadow:0 16px 36px rgba(4,42,84,.14);
}
.art-infogrid .ai-icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  box-shadow:0 8px 20px rgba(0,86,179,.28);
  transition:transform .4s var(--art-spring);
}
.art-infogrid .ai-item:hover .ai-icon{transform:scale(1.1) rotate(-6deg)}
.art-infogrid .ai-title{font-weight:800;font-size:14px;color:var(--rsb-text);margin-bottom:6px}
.art-infogrid .ai-desc{font-size:12.5px;color:#1e3a54;line-height:1.8;margin:0}

/* ---- Pull quote ---- */
.art-quote{
  position:relative;margin:36px 0;padding:28px 56px 28px 28px;border-radius:18px;
  background:linear-gradient(135deg,rgba(0,86,179,.05),rgba(0,136,204,.03));
  border:1px solid rgba(0,136,204,.2);
}
.art-quote::before{
  content:"\f10e";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;top:18px;right:20px;font-size:26px;
  background:linear-gradient(135deg,var(--art-blue),var(--art-cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  opacity:.85;
}
.art-quote p{margin:0;font-size:16px;font-weight:700;line-height:2;color:var(--art-blue)}
.art-quote cite{display:block;margin-top:10px;font-size:12.5px;font-style:normal;color:#33526a}

/* ---- Comparison duo ---- */
.art-compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:34px 0}
@media(max-width:640px){.art-compare{grid-template-columns:1fr}}
.art-compare .cmp{
  position:relative;padding:24px 22px;border-radius:18px;
  border:1px solid var(--rsb-panel-border);background:var(--rsb-panel);
  transition:transform .4s var(--art-spring),box-shadow .4s;
}
.art-compare .cmp:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(4,42,84,.14)}
.art-compare .cmp-badge{
  position:absolute;top:-13px;right:20px;padding:5px 16px;border-radius:20px;
  font-size:11.5px;font-weight:800;color:#fff;
  box-shadow:0 6px 14px rgba(4,42,84,.25);
}
.art-compare .cmp-a .cmp-badge{background:linear-gradient(135deg,#0056b3,#0088CC)}
.art-compare .cmp-b .cmp-badge{background:linear-gradient(135deg,#6a4c93,#9b5de5)}
.art-compare .cmp h5{font-weight:800;font-size:15px;margin:6px 0 10px;color:var(--rsb-text)}
.art-compare .cmp ul{list-style:none;margin:0;padding:0}
.art-compare .cmp li{
  position:relative;padding:5px 24px 5px 0;font-size:13.5px;line-height:1.9;color:#1e3a54;
}
.art-compare .cmp li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:0;top:7px;font-size:11px;color:var(--art-cyan);
}
.art-compare .cmp-b li::before{color:#9b5de5}

/* ---- Section divider with label ---- */
.art-divider{
  display:flex;align-items:center;gap:14px;margin:44px 0 8px;
}
.art-divider::before,.art-divider::after{
  content:"";flex:1;height:1px;
  background:linear-gradient(90deg,transparent,var(--rsb-panel-border));
}
.art-divider::after{background:linear-gradient(90deg,var(--rsb-panel-border),transparent)}
.art-divider span{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 18px;border-radius:30px;font-size:12px;font-weight:800;
  color:var(--art-blue);background:var(--rsb-accent-light);
  border:1px solid rgba(0,136,204,.2);
}

@media(max-width:767px){
  .art-callout{padding:18px 16px}
  .art-steps li{padding-left:0}
  .art-stats-row{grid-template-columns:repeat(2,1fr)}
  .art-quote{padding:22px 48px 22px 18px}
}

/* ============================================================
   8. RESPONSIVE
   ============================================================ */
@media(max-width:991px){
  .rsb-article-layout{grid-template-columns:1fr}
  .rsb-article-toc{position:relative;top:0;max-height:none;display:none}
  .rsb-article-toc.is-mobile-open{display:block}
}
@media(max-width:767px){
  .rsb-articles-hero{padding:64px 0 96px}
  .rsb-articles-hero-stats{gap:10px}
  .art-stat{min-width:120px;padding:16px 18px}
  .art-stat .num{font-size:1.7rem}
  .rsb-articles-grid{grid-template-columns:1fr;gap:22px}
  .rsb-articles-featured-img{height:300px}
  .rsb-articles-featured-content{padding:24px 22px}
  .rsb-articles-featured{margin-bottom:48px}
  .rsb-article-content-card{padding:26px 20px}
  .rsb-article-content{font-size:15.5px}
  .rsb-article-content>p:first-of-type::first-letter{font-size:2.5em}
  .rsb-articles-cta{padding:40px 22px}
  .rsb-article-detail-hero{padding:44px 0 84px}
  .rsb-articles-search{padding:6px 6px 6px 16px}
  .rsb-articles-search button{padding:10px 18px}
}

/* ============================================================
   9. DARK MODE
   ============================================================ */
[data-theme="dark"]{
  --art-glass:rgba(16,28,44,.82);
  --art-glass-br:rgba(255,255,255,.1);
}
[data-theme="dark"] .rsb-article-card,
[data-theme="dark"] .rsb-article-content-card{background:var(--rsb-panel);border-color:rgba(255,255,255,.08)}
[data-theme="dark"] .rsb-article-toc{background:var(--art-glass);border-color:var(--art-glass-br)}
[data-theme="dark"] .rsb-article-content tr:nth-child(even) td{background:rgba(255,255,255,.03)}
[data-theme="dark"] .rsb-article-author{background:linear-gradient(135deg,rgba(0,136,204,.08),rgba(0,86,179,.05));border-color:rgba(0,136,204,.25)}
[data-theme="dark"] .art-keywords .kw{background:rgba(0,136,204,.12);border-color:rgba(0,136,204,.3)}
[data-theme="dark"] .rsb-articles-cta{background:linear-gradient(135deg,#071a30 0%,#0a2a4a 55%,#0a3a66 100%)}
/* Dark mode: restore light text for elements whose base was darkened for light mode */
[data-theme="dark"] .rsb-article-content,
[data-theme="dark"] .rsb-article-content p,
[data-theme="dark"] .rsb-article-content li,
[data-theme="dark"] .rsb-article-content td,
[data-theme="dark"] .rsb-article-content blockquote,
[data-theme="dark"] .rsb-article-content h2,
[data-theme="dark"] .rsb-article-content h3,
[data-theme="dark"] .rsb-article-card-body p,
[data-theme="dark"] .rsb-article-card-body h3,
[data-theme="dark"] .rsb-article-card-meta,
[data-theme="dark"] .rsb-articles-empty,
[data-theme="dark"] .rsb-article-toc a,
[data-theme="dark"] .rsb-article-author-info p,
[data-theme="dark"] .art-figure figcaption,
[data-theme="dark"] .art-stat-card .asc-label,
[data-theme="dark"] .art-steps .st-desc,
[data-theme="dark"] .art-infogrid .ai-desc,
[data-theme="dark"] .art-quote cite,
[data-theme="dark"] .art-compare .cmp li{color:var(--rsb-muted)}
[data-theme="dark"] .rsb-article-content h2,
[data-theme="dark"] .rsb-article-content h3,
[data-theme="dark"] .rsb-article-card-body h3{color:var(--rsb-text)}

/* ============================================================
   10. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  .rsb-articles-hero .aurora i,
  .rsb-articles-hero .spark,
  .rsb-articles-hero h1 .grad,
  .rsb-articles-featured,
  .rsb-articles-featured-badge i,
  .rsb-article-author-avatar,
  .rsb-articles-empty .ico,
  .rsb-read-progress__bar,
  .art-eyebrow .dot,
  .rsb-article-card::before{animation:none!important}
  .art-enter{opacity:1!important;transform:none!important}
  *{scroll-behavior:auto!important}
}

/* ============================================================
   LIGHT MODE CONTRAST v2 — every text readable on the white theme
   ============================================================ */
/* body-size text: dark slate (was too light gray) */
html:not([data-theme="dark"]) .rsb-article-content,
html:not([data-theme="dark"]) .rsb-article-content p,
html:not([data-theme="dark"]) .rsb-article-content li,
html:not([data-theme="dark"]) .rsb-article-content td,
html:not([data-theme="dark"]) .rsb-article-card-body p,
html:not([data-theme="dark"]) .rsb-article-toc a,
html:not([data-theme="dark"]) .art-figure figcaption,
html:not([data-theme="dark"]) .art-callout .ac-body p,
html:not([data-theme="dark"]) .art-infogrid .ai-desc,
html:not([data-theme="dark"]) .art-steps .st-desc,
html:not([data-theme="dark"]) .rsb-article-author-info p,
html:not([data-theme="dark"]) .rsb-articles-empty,
html:not([data-theme="dark"]) .rsb-articles-empty p,
html:not([data-theme="dark"]) .art-compare .cmp li,
html:not([data-theme="dark"]) .art-quote p,
html:not([data-theme="dark"]) .rsb-article-related .rsb-article-card-body p{
  color:#0d1b2a!important;
}
/* headings: near-black navy */
html:not([data-theme="dark"]) .rsb-article-content h2,
html:not([data-theme="dark"]) .rsb-article-content h3,
html:not([data-theme="dark"]) .rsb-article-card-body h3,
html:not([data-theme="dark"]) .rsb-article-toc h4,
html:not([data-theme="dark"]) .art-infogrid .ai-title,
html:not([data-theme="dark"]) .art-steps .st-title,
html:not([data-theme="dark"]) .art-compare .cmp h5,
html:not([data-theme="dark"]) .art-stat-card .asc-label,
html:not([data-theme="dark"]) .rsb-article-author-info h4,
html:not([data-theme="dark"]) .rsb-articles-empty h3{
  color:#0e2a44!important;
}
/* links & accents */
html:not([data-theme="dark"]) .rsb-article-content strong,
html:not([data-theme="dark"]) .rsb-article-content a,
html:not([data-theme="dark"]) .art-quote p,
html:not([data-theme="dark"]) .art-callout--tip .ac-body strong,
html:not([data-theme="dark"]) .art-callout--success .ac-body strong{
  color:#004a85!important;
}
/* small meta text: darker for 12px readability */
html:not([data-theme="dark"]) .rsb-article-card-meta,
html:not([data-theme="dark"]) .rsb-article-card-meta .read-time,
html:not([data-theme="dark"]) .rsb-article-card-meta .date,
html:not([data-theme="dark"]) .art-stat-card .asc-label{color:#33526a!important}
/* search box */
html:not([data-theme="dark"]) .rsb-articles-search input{color:#1e3a52!important}
html:not([data-theme="dark"]) .rsb-articles-search input::placeholder{color:#5a7186!important;opacity:1}
/* filter pills (inactive) */
html:not([data-theme="dark"]) .rsb-articles-filter{color:#22384c!important}
html:not([data-theme="dark"]) .rsb-articles-filter .count{background:rgba(0,60,110,.1)!important;color:#1e3a52!important}
/* empty state icon */
html:not([data-theme="dark"]) .rsb-articles-empty .ico{color:#7a92a6!important}
/* h2 decorations */
html:not([data-theme="dark"]) .rsb-article-content h2::before{background:linear-gradient(#00518f,#0088cc)!important}
html:not([data-theme="dark"]) .rsb-article-content h2::after{background:linear-gradient(90deg,#0088cc,transparent)!important}
html:not([data-theme="dark"]) .rsb-article-content a{background-image:linear-gradient(#0074b8,#0074b8)!important}
html:not([data-theme="dark"]) .rsb-article-toc a:hover,
html:not([data-theme="dark"]) .rsb-article-toc a.is-active{color:#00518f!important;background:rgba(0,136,204,.12)!important}
html:not([data-theme="dark"]) .rsb-article-toc a::before{background:linear-gradient(#00518f,#0088cc)!important}
html:not([data-theme="dark"]) .art-keywords .kw{color:#004a85!important;background:#e4f2fb!important;border-color:#9acde7!important}
html:not([data-theme="dark"]) .art-compare .cmp,
html:not([data-theme="dark"]) .art-stat-card,
html:not([data-theme="dark"]) .art-infogrid .ai-item,
html:not([data-theme="dark"]) .art-figure,
html:not([data-theme="dark"]) .rsb-article-author{
  border-color:#c5d8e5!important;
}
html:not([data-theme="dark"]) .art-stat-card .asc-num{background:linear-gradient(135deg,#00518f,#007eb8)!important;-webkit-background-clip:text!important;background-clip:text!important}
html:not([data-theme="dark"]) .rsb-article-card-meta,
html:not([data-theme="dark"]) .rsb-article-card-meta .read-time,
html:not([data-theme="dark"]) .rsb-article-card-meta .date{color:#33536b!important}
html:not([data-theme="dark"]) .rsb-article-card-meta i{color:#0074b8!important}
/* author box + share label */
html:not([data-theme="dark"]) .rsb-article-author-info p{color:#3d5a70!important}
html:not([data-theme="dark"]) .rsb-article-share .share-label{color:#22384c!important}
/* breadcrumb active crumb darker */
html:not([data-theme="dark"]) .breadcrumb-item.active{color:#3d5a70!important}

/* ============================================================
   LAYOUT BUG FIXES — prevent icon/text overlap and clipping
   ============================================================ */
.rsb-article-content,
.rsb-article-content *{box-sizing:border-box}
.rsb-article-content{min-width:0;overflow-wrap:anywhere;word-break:normal}
.rsb-article-content p,
.rsb-article-content li,
.rsb-article-content td,
.rsb-article-content th{overflow-wrap:anywhere}

/* The generic list rule above must not override timeline geometry. */
.rsb-article-content .art-steps{position:relative;padding:0;margin:36px 0;list-style:none}
.rsb-article-content .art-steps li{
  position:relative;display:block;min-height:44px;
  margin:0;padding:0 56px 26px 0!important;line-height:normal;
}
.rsb-article-content .art-steps li:last-child{padding-bottom:4px!important}
.rsb-article-content .art-steps .st-num{
  position:absolute;right:0;top:0;display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;margin:0;line-height:1;z-index:1;
}
.rsb-article-content .art-steps .st-title,
.rsb-article-content .art-steps .st-desc{display:block;min-width:0}
.rsb-article-content .art-steps .st-title{padding-top:2px}
.rsb-article-content .art-steps .st-desc{margin:6px 0 0;padding:0}

/* Keep every icon in its own flex box; never allow it to shrink into text. */
.rsb-article-content .art-callout{display:flex;align-items:flex-start;gap:16px;min-width:0}
.rsb-article-content .art-callout .ac-icon{display:flex;align-items:center;justify-content:center;flex:0 0 42px;width:42px;height:42px;line-height:1}
.rsb-article-content .art-callout .ac-body{flex:1 1 auto;min-width:0}
.rsb-article-content .art-callout .ac-body strong{display:block;line-height:1.7}
.rsb-article-content .art-callout .ac-body p{display:block;margin:0;line-height:1.9;text-align:right}
.rsb-article-content .art-infogrid .ai-item{min-width:0;overflow:hidden}
.rsb-article-content .art-infogrid .ai-icon{display:flex;align-items:center;justify-content:center;flex:0 0 52px;width:52px;height:52px;line-height:1}
.rsb-article-content .art-infogrid .ai-title,
.rsb-article-content .art-infogrid .ai-desc{display:block;overflow-wrap:anywhere}
.rsb-article-content .art-compare .cmp{min-width:0;overflow:hidden}
.rsb-article-content .art-compare .cmp li{padding:5px 24px 5px 0!important;line-height:1.9}

/* Tables remain readable instead of pushing text off-screen. */
.rsb-article-content table{display:block;width:100%;max-width:100%;overflow-x:auto;white-space:normal}
.rsb-article-content table th,
.rsb-article-content table td{min-width:120px;vertical-align:top;overflow-wrap:anywhere}

/* Wide figures stay inside the card on all viewport sizes. */
.rsb-article-content .art-figure--wide{max-width:none;width:auto}
.rsb-article-content .art-figure .af-img{min-height:0;max-height:none}
.rsb-article-content .art-figure .af-img img{display:block;width:100%;height:auto;max-width:100%;object-fit:cover}

@media(max-width:767px){
  .rsb-article-content-card{min-width:0;overflow:hidden}
  .rsb-article-content .art-steps li{padding-right:52px!important}
  .rsb-article-content .art-callout{gap:12px;padding-left:14px;padding-right:14px}
  .rsb-article-content .art-callout .ac-icon{flex-basis:38px;width:38px;height:38px;font-size:15px}
  .rsb-article-content .art-infogrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rsb-article-content .art-infogrid .ai-icon{width:46px;height:46px;flex-basis:46px;font-size:17px}
  .rsb-article-content table{font-size:13px}
  .rsb-article-content table th,.rsb-article-content table td{min-width:105px;padding:9px 10px}
}

/* ===== Article Gallery ===== */
.rsb-article-gallery{margin:32px 0 8px;padding-top:24px;border-top:1px solid var(--rsb-panel-border)}
.rsb-article-gallery h3{font-size:18px;font-weight:800;color:var(--art-blue);margin:0 0 16px;display:flex;align-items:center;gap:8px}
.rsb-article-gallery h3 i{font-size:20px}
.rsb-gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.rsb-gallery-item{border-radius:14px;overflow:hidden;border:1px solid var(--rsb-panel-border);background:var(--rsb-panel);transition:transform .4s cubic-bezier(.22,.61,.36,1),box-shadow .4s ease;border-radius:14px}
.rsb-gallery-item:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 12px 30px rgba(0,0,0,.4)}
.rsb-gallery-item img{width:100%;height:200px;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.22,.61,.36,1)}
.rsb-gallery-item:hover img{transform:scale(1.08)}
@media (max-width:576px){
  .rsb-gallery-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .rsb-gallery-item img{height:140px}
}