/* ── BLOG LISTING — listing.css ── */
:root{
  --bl-red:#E8341A;--bl-red2:#C4290F;--bl-red-tint:#FFF0EE;--bl-red-tint2:#FFE0DB;
  --bl-navy:#1E2D8F;--bl-navy2:#2B50D0;--bl-navy3:#3A64E8;
  --bl-tint:#EEF1FB;--bl-tint2:#DDE4F6;--bl-tint3:#C8D4F0;
  --bl-ink:#0D1117;--bl-ink2:#1F2937;--bl-text:#374151;
  --bl-muted:#6B7280;--bl-muted2:#9CA3AF;
  --bl-border:#E5E8F2;--bl-border2:#CDD4EE;
  --bl-bg:#F2F4FC;--bl-card:#fff;
  --bl-green:#059669;
}

/* ── LAYOUT ── */
.bl-layout{display:grid;grid-template-columns:1fr 360px;gap:32px;align-items:start}

/* ── ACCORDION ── */
.bl-accordion{display:flex;flex-direction:column;gap:8px}

.bl-chapter{
  background:var(--bl-card);
  border:1.5px solid var(--bl-border);
  border-radius:16px;overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.bl-chapter:hover:not(.bl-open){border-color:var(--bl-tint3);box-shadow:0 2px 12px rgba(30,45,143,.06)}
.bl-chapter.bl-open{
  border-color:var(--bl-navy2);
  box-shadow:0 6px 28px rgba(30,45,143,.12);
}

/* Chapter header */
.bl-chapter-hd{
  display:flex;align-items:center;gap:14px;
  padding:15px 18px;cursor:pointer;user-select:none;
  transition:background .15s;
}
.bl-chapter-hd:hover{background:var(--bl-tint)}
.bl-chapter.bl-open .bl-chapter-hd{
  background:linear-gradient(118deg,var(--bl-navy) 0%,var(--bl-navy2) 100%);
}

/* chapter number */
.bl-ch-num{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:var(--bl-tint2);border:1.5px solid var(--bl-tint3);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:900;
  color:var(--bl-navy);transition:all .2s;
}
.bl-chapter.bl-open .bl-ch-num{
  background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.2);color:#fff;
}
.bl-ch-label{
  font-size:9.5px;font-weight:800;
  letter-spacing:1.2px;text-transform:uppercase;color:var(--bl-muted2);margin-bottom:2px;
  transition:color .2s;
}
.bl-chapter.bl-open .bl-ch-label{color:rgba(255,255,255,.55)}
.bl-ch-title{
  font-size:14.5px;font-weight:800;color:var(--bl-navy);
  line-height:1.28;transition:color .2s;
}
.bl-chapter.bl-open .bl-ch-title{color:#fff}
.bl-ch-right{margin-left:auto;display:flex;align-items:center;gap:9px;flex-shrink:0}

/* lesson count pill */
.bl-ch-count{
  font-size:11px;font-weight:700;
  background:var(--bl-tint2);border:1.5px solid var(--bl-tint3);
  color:var(--bl-navy2);padding:3px 10px;border-radius:7px;white-space:nowrap;
  transition:all .2s;
}
.bl-chapter.bl-open .bl-ch-count{
  background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.8);
}

/* +/× toggle */
.bl-ch-toggle{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border:1.5px solid var(--bl-tint3);color:var(--bl-navy2);
  font-size:14px;font-weight:700;transition:all .25s;background:transparent;cursor:pointer;
}
.bl-chapter.bl-open .bl-ch-toggle{
  background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.2);color:#fff;
  transform:rotate(45deg);
}

/* chapter body */
.bl-chapter-body{display:none;padding:10px 0 4px}
.bl-chapter.bl-open .bl-chapter-body{display:block}

/* closed preview tags */
.bl-chapter-preview{
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;
  padding:8px 18px 14px 66px;
}
.bl-chapter.bl-open .bl-chapter-preview{display:none}
.bl-ccp-tag{
  font-size:11px;font-weight:600;
  padding:3px 10px;border-radius:6px;
  text-decoration:none;transition:opacity .2s;
}
.bl-ccp-tag:hover{opacity:.8;text-decoration:underline}
.bl-ccp-tag:nth-child(4n+1){color:#2B50D0;background:#EEF1FB;border:1px solid #DDE4F6}
.bl-ccp-tag:nth-child(4n+2){color:#7c3aed;background:#f3f0ff;border:1px solid #e9e0fd}
.bl-ccp-tag:nth-child(4n+3){color:#059669;background:#ecfdf5;border:1px solid #d1fae5}
.bl-ccp-tag:nth-child(4n+4){color:#d97706;background:#fffbeb;border:1px solid #fef3c7}

/* Lesson group */
.bl-group{
  margin:4px 14px 8px;
  background:var(--bl-tint);border:1.5px solid var(--bl-tint2);
  border-radius:12px;overflow:hidden;
}
.bl-group-hd{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;cursor:pointer;transition:background .15s;
}
.bl-group-hd:hover{background:var(--bl-tint2)}
.bl-group.bl-open > .bl-group-hd{background:var(--bl-tint2)}
.bl-lg-icon{
  width:28px;height:28px;border-radius:7px;flex-shrink:0;
  background:linear-gradient(135deg,var(--bl-navy),var(--bl-navy2));
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:rgba(255,255,255,.85);
}
.bl-lg-title{font-size:13px;font-weight:700;color:var(--bl-navy);flex:1}
.bl-lg-link{text-decoration:none}
.bl-lg-link:hover{text-decoration:underline;color:var(--bl-navy2)}
.bl-lg-count{
  font-size:10px;font-weight:700;color:var(--bl-navy2);
  background:var(--bl-tint2);border:1px solid var(--bl-tint3);
  padding:2px 8px;border-radius:6px;flex-shrink:0;
}
.bl-lg-toggle{
  width:22px;height:22px;border-radius:6px;border:1px solid var(--bl-border2);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--bl-navy2);flex-shrink:0;transition:transform .2s;background:var(--bl-card);
}
.bl-group.bl-open > .bl-group-hd .bl-lg-toggle{transform:rotate(45deg)}

/* lesson items */
.bl-lesson-list{display:none;padding:4px 0 8px}
.bl-group.bl-open > .bl-lesson-list{display:block}
.bl-lesson-item{
  display:flex;align-items:center;gap:12px;
  padding:9px 14px 9px 52px;
  border-top:1px solid var(--bl-tint2);
  text-decoration:none;transition:background .15s;
  position:relative;
}
.bl-lesson-item:hover{background:rgba(30,45,143,.04)}

/* red left bar on hover */
.bl-lesson-item::before{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:3px;background:var(--bl-red);border-radius:0 2px 2px 0;
  opacity:0;transition:opacity .15s;
}
.bl-lesson-item:hover::before{opacity:1}
.bl-lesson-item:hover .bl-li-title{color:var(--bl-navy)}

.bl-li-dot{
  width:6px;height:6px;border-radius:50%;background:var(--bl-tint3);flex-shrink:0;
  transition:background .15s;
}
.bl-lesson-item:hover .bl-li-dot{background:var(--bl-red)}
.bl-li-title{font-size:13.5px;color:var(--bl-text);line-height:1.45;flex:1;transition:color .15s;font-weight:400}
.bl-li-cta{
  font-size:11px;font-weight:700;color:var(--bl-red);
  white-space:nowrap;opacity:0;transition:opacity .15s;
  display:flex;align-items:center;gap:4px;
}
.bl-lesson-item:hover .bl-li-cta{opacity:1}

/* ═══ SIDEBAR ═══ */
.bl-sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:24px}

.bl-sidebar-title{
  font-size:19px;font-weight:900;color:var(--bl-navy);
  display:flex;align-items:center;gap:12px;margin-bottom:2px;
}
.bl-sidebar-title .bl-bars{display:flex;flex-direction:column;gap:3px}
.bl-sidebar-title .bl-bar1{width:20px;height:3px;background:var(--bl-red);border-radius:2px}
.bl-sidebar-title .bl-bar2{width:13px;height:3px;background:var(--bl-navy2);border-radius:2px}

/* Hero article */
.bl-art-hero{
  background:var(--bl-card);border:1.5px solid var(--bl-border);border-radius:16px;
  overflow:hidden;box-shadow:0 2px 10px rgba(30,45,143,.07);
  text-decoration:none;display:block;
  transition:transform .22s,box-shadow .22s;
}
.bl-art-hero:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(30,45,143,.14)}
.bl-art-hero-img{
  width:100%;aspect-ratio:16/9;position:relative;overflow:hidden;background:#1a2566;
}
.bl-art-hero-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.bl-art-hero:hover .bl-art-hero-img img{transform:scale(1.04)}
.bl-art-hero-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,20,80,.75) 0%,rgba(0,0,0,.05) 55%,transparent 100%);
}
.bl-art-hero-overlay{position:absolute;bottom:0;left:0;right:0;z-index:2;padding:14px 16px}
.bl-art-cat-chip{
  display:inline-flex;align-items:center;gap:5px;
  background:var(--bl-red);
  color:#fff;font-size:9px;font-weight:800;
  letter-spacing:.8px;text-transform:uppercase;padding:3px 10px;border-radius:6px;margin-bottom:8px;
}
.bl-art-hero-title{
  font-size:17px;font-weight:800;
  color:#fff;line-height:1.28;text-shadow:0 1px 8px rgba(0,0,0,.4);
}
.bl-art-hero-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;border-top:1px solid var(--bl-border);
}
.bl-art-auth{display:flex;align-items:center;gap:8px}
.bl-art-av{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--bl-navy),var(--bl-navy2));
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:800;color:#fff;overflow:hidden;
}
.bl-art-av img{width:100%;height:100%;object-fit:cover}
.bl-art-aname{font-size:12px;font-weight:700;color:var(--bl-navy);display:flex;align-items:center;gap:4px}
.bl-art-aname i{color:var(--bl-navy2);font-size:11px}
.bl-art-date{font-size:11.5px;color:var(--bl-muted2);font-weight:500}

/* Mini article rows */
.bl-art-mini{
  display:flex;gap:13px;
  background:var(--bl-card);border:1.5px solid var(--bl-border);border-radius:13px;
  padding:13px 14px;text-decoration:none;
  box-shadow:0 1px 4px rgba(30,45,143,.05);
  transition:all .2s;position:relative;overflow:hidden;
}
.bl-art-mini::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(to bottom,var(--bl-red),var(--bl-red2));
  border-radius:0 2px 2px 0;opacity:0;transition:opacity .2s;
}
.bl-art-mini:hover{border-color:var(--bl-navy2);box-shadow:0 4px 18px rgba(30,45,143,.1);transform:translateX(4px)}
.bl-art-mini:hover::before{opacity:1}
.bl-art-mini-img{
  width:76px;height:68px;border-radius:9px;flex-shrink:0;overflow:hidden;
  background:#cdd4ec;position:relative;
}
.bl-art-mini-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.bl-art-mini:hover .bl-art-mini-img img{transform:scale(1.06)}
.bl-art-mini-cat{
  font-size:9.5px;font-weight:800;text-transform:uppercase;letter-spacing:.7px;
  color:var(--bl-red);margin-bottom:4px;
}
.bl-art-mini-title{
  font-size:12.5px;font-weight:700;color:var(--bl-navy);
  line-height:1.4;margin-bottom:7px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .15s;
}
.bl-art-mini:hover .bl-art-mini-title{color:var(--bl-red)}
.bl-art-mini-foot{display:flex;align-items:center;gap:7px}
.bl-art-mini-av{
  width:18px;height:18px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--bl-navy),var(--bl-navy2));
  display:flex;align-items:center;justify-content:center;
  font-size:8px;font-weight:800;color:#fff;overflow:hidden;
}
.bl-art-mini-av img{width:100%;height:100%;object-fit:cover}
.bl-art-mini-aname{font-size:11px;font-weight:600;color:var(--bl-muted);display:flex;align-items:center;gap:3px}
.bl-art-mini-aname i{color:var(--bl-navy2);font-size:10px}
.bl-art-mini-date{font-size:10.5px;color:var(--bl-muted2);margin-left:auto}

/* see all */
.bl-see-all{
  display:flex;align-items:center;justify-content:center;gap:7px;
  padding:11px;border-radius:11px;
  border:1.5px solid var(--bl-tint3);background:var(--bl-tint);
  font-size:12.5px;font-weight:700;color:var(--bl-navy2);
  text-decoration:none;cursor:pointer;transition:all .2s;
}
.bl-see-all:hover{background:var(--bl-navy);border-color:var(--bl-navy);color:#fff}

/* animations */
@keyframes blFadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.bl-fi{animation:blFadeUp .45s cubic-bezier(.22,1,.36,1) both}
.bl-fi:nth-child(1){animation-delay:.04s}.bl-fi:nth-child(2){animation-delay:.1s}
.bl-fi:nth-child(3){animation-delay:.16s}.bl-fi:nth-child(4){animation-delay:.22s}
.bl-fi:nth-child(5){animation-delay:.28s}.bl-fi:nth-child(6){animation-delay:.34s}

/* ═══ BLOG CARDS (category listing) ═══ */
.bl-card{
  background:var(--bl-card);border:1px solid var(--bl-border);border-radius:16px;
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  text-decoration:none;
  box-shadow:0 1px 4px rgba(30,45,143,.06);
  transition:transform .24s cubic-bezier(.22,1,.36,1),box-shadow .24s;
}
.bl-card:hover{
  transform:translateY(-6px);
  box-shadow:0 12px 40px rgba(30,45,143,.14);
}
.bl-card__thumb{
  width:100%;aspect-ratio:16/9;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#050c30,var(--bl-navy));
}
.bl-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.bl-card:hover .bl-card__thumb img{transform:scale(1.04)}
.bl-card__thumb::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,18,70,.55) 0%,rgba(0,0,0,.05) 55%,transparent 100%);
}
.bl-card__badge{
  position:absolute;bottom:10px;left:12px;z-index:2;
  background:rgba(255,255,255,.14);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);color:#fff;
  font-size:8.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;
  padding:3px 10px;border-radius:5px;
}
.bl-card__body{
  padding:14px 16px 17px;flex:1;display:flex;flex-direction:column;
}
.bl-card__title{
  font-size:13.5px;font-weight:700;color:var(--bl-navy);line-height:1.44;
  margin-bottom:9px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .15s;
}
.bl-card:hover .bl-card__title{color:var(--bl-red)}
.bl-card__desc{
  font-size:12px;color:var(--bl-text);line-height:1.65;
  margin-bottom:0;
}
.bl-card__author{display:flex;align-items:center;gap:7px;margin-bottom:9px}
.bl-card__av{
  width:22px;height:22px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--bl-navy),var(--bl-navy2));
  display:flex;align-items:center;justify-content:center;
  font-size:9px;font-weight:800;color:#fff;overflow:hidden;
}
.bl-card__av img{width:100%;height:100%;object-fit:cover}
.bl-card__aname{font-size:11px;font-weight:500;color:var(--bl-muted)}
.bl-card__verified{color:var(--bl-navy2);font-size:13px;flex-shrink:0}
.bl-card__date{font-size:10.5px;color:var(--bl-muted2);margin-left:auto}

/* ── RESPONSIVE ── */
@media(max-width:991px){
  .bl-layout{grid-template-columns:1fr;gap:24px}
  .bl-sidebar{position:static}
}
@media(max-width:575px){
  .bl-chapter-hd{padding:12px 14px;gap:10px}
  .bl-ch-num{width:28px;height:28px;font-size:12px}
  .bl-ch-title{font-size:13px}
  .bl-ch-count{font-size:10px;padding:2px 8px}
  .bl-chapter-preview{padding-left:52px}
  .bl-lesson-item{padding-left:36px}
  .bl-art-hero-title{font-size:15px}
}