/* =========================================================
   English Nest — Challenge Mode
   Scoped to #challenges / .en-challenges only
   ========================================================= */

.en-challenges{
  --en-navy:#0d315f;
  --en-navy-deep:#08264c;
  --en-navy-soft:#173f70;
  --en-gold:#d6b574;
  --en-gold-soft:#ead9b6;
  --en-cream:#f7f3ea;
  --en-paper:#fffdf9;
  --en-text:#102f59;
  --en-muted:#8997aa;
  --en-line:#e9e1d4;
  margin-top:34px;
}

.en-challenges *{box-sizing:border-box}

.en-challenges-shell{
  max-width:1120px;
  margin:0 auto;
  padding:46px;
  border:1px solid #e4dccf;
  border-radius:34px;
  background:
    radial-gradient(circle at 7% 12%, rgba(214,181,116,.13), transparent 24%),
    radial-gradient(circle at 92% 90%, rgba(13,49,95,.05), transparent 28%),
    #f2eee5;
  overflow:hidden;
  position:relative;
}

.en-challenges-shell::before{
  content:"";
  position:absolute;
  width:360px;
  height:360px;
  border:1px solid rgba(13,49,95,.055);
  border-radius:50%;
  left:-185px;
  bottom:-195px;
  box-shadow:
    0 0 0 50px rgba(13,49,95,.022),
    0 0 0 105px rgba(13,49,95,.016);
  pointer-events:none;
}

.en-challenge-intro{
  min-height:300px;
  padding:44px 48px;
  border-radius:28px;
  background:
    linear-gradient(115deg, rgba(255,255,255,.035), transparent 45%),
    linear-gradient(135deg, var(--en-navy-deep), #123f74);
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);
  align-items:center;
  gap:46px;
  position:relative;
  overflow:hidden;
  box-shadow:0 24px 55px rgba(13,49,95,.13);
}

.en-challenge-intro::after{
  content:"";
  position:absolute;
  width:360px;
  height:360px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.07);
  left:-100px;
  top:-155px;
  box-shadow:
    0 0 0 48px rgba(255,255,255,.025),
    0 0 0 96px rgba(255,255,255,.018);
}

.en-challenge-intro-copy{
  position:relative;
  z-index:2;
}

.en-challenge-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--en-gold);
  font-size:13px;
  font-weight:900;
  margin-bottom:13px;
}

.en-challenge-intro h2{
  margin:0;
  color:#fff;
  font-size:44px;
  line-height:1.25;
  font-weight:900;
  letter-spacing:-.6px;
}

.en-challenge-intro h2 span{color:#f0cf8d}

.en-challenge-intro p{
  max-width:610px;
  margin:17px 0 0;
  color:#b8c6d8;
  font-size:16px;
  line-height:2;
}

.en-challenge-intro-mark{
  min-height:182px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;
  padding:31px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
  direction:ltr;
  position:relative;
  z-index:2;
  background:rgba(255,255,255,.035);
  backdrop-filter:blur(6px);
}

.en-challenge-intro-mark span{
  color:var(--en-gold);
  font-size:11px;
  letter-spacing:2.5px;
  font-weight:900;
}

.en-challenge-intro-mark strong{
  color:#fff;
  font-size:34px;
  line-height:1;
  letter-spacing:1.2px;
  margin-top:11px;
}

.en-challenge-intro-mark i{
  color:#8da3bd;
  font-size:15px;
  letter-spacing:6px;
  font-style:normal;
  margin-top:8px;
}

.en-challenge-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  margin-top:22px;
}

.en-challenge-card{
  min-height:300px;
  padding:28px;
  border:1px solid var(--en-line);
  border-radius:23px;
  background:rgba(255,255,255,.93);
  color:inherit;
  text-decoration:none;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
  box-shadow:0 12px 30px rgba(13,49,95,.055);
  transition:
    transform .25s ease,
    border-color .25s ease,
    box-shadow .25s ease;
}

.en-challenge-card::before{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:4px;
  background:linear-gradient(90deg,var(--en-gold),#ecd49e);
  transform:scaleX(0);
  transform-origin:right;
  transition:transform .28s ease;
}

.en-challenge-card::after{
  content:"";
  position:absolute;
  width:120px;
  height:120px;
  left:-62px;
  bottom:-68px;
  border-radius:50%;
  border:1px solid rgba(13,49,95,.055);
  box-shadow:0 0 0 22px rgba(13,49,95,.018);
  pointer-events:none;
}

.en-challenge-card:hover{
  transform:translateY(-6px);
  border-color:#d9c59f;
  box-shadow:0 22px 45px rgba(13,49,95,.10);
}

.en-challenge-card:hover::before{transform:scaleX(1)}

.en-challenge-card-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
}

.en-challenge-icon{
  width:54px;
  height:54px;
  border:1px solid #e7ddca;
  border-radius:16px;
  display:grid;
  place-items:center;
  color:var(--en-navy);
  background:#f8f3e9;
  transition:.25s ease;
}

.en-challenge-icon svg{
  width:25px;
  height:25px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.7;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.en-challenge-card:hover .en-challenge-icon{
  background:var(--en-navy);
  color:#f0ce89;
  border-color:var(--en-navy);
}

.en-challenge-no{
  direction:ltr;
  color:#b3bdca;
  font-size:12px;
  font-weight:900;
  letter-spacing:1.4px;
}

.en-challenge-card-body{margin-top:25px}

.en-challenge-label{
  display:block;
  color:#b6924d;
  font-size:10px;
  letter-spacing:1.8px;
  font-weight:900;
  direction:ltr;
  text-align:right;
}

.en-challenge-card h3{
  margin:7px 0 8px;
  color:var(--en-navy);
  font-size:24px;
  font-weight:900;
}

.en-challenge-card p{
  margin:0;
  color:#8390a2;
  font-size:14px;
  line-height:1.9;
}

.en-challenge-meta{
  display:flex;
  gap:7px;
  flex-wrap:wrap;
  margin-top:19px;
}

.en-challenge-meta span{
  border:1px solid #ece5d9;
  border-radius:999px;
  padding:5px 10px;
  background:#faf8f3;
  color:#8b96a5;
  font-size:10px;
  font-weight:800;
}

.en-challenge-go{
  margin-top:auto;
  padding-top:20px;
  border-top:1px solid #eee8de;
  color:var(--en-navy);
  font-size:13px;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.en-challenge-go span{
  width:31px;
  height:31px;
  border-radius:50%;
  border:1px solid #dde4ec;
  display:grid;
  place-items:center;
  background:#fff;
  transition:.22s ease;
}

.en-challenge-card:hover .en-challenge-go span{
  background:var(--en-navy);
  color:#fff;
  border-color:var(--en-navy);
  transform:translateX(-3px);
}

.en-challenge-cta{
  margin-top:22px;
  padding:28px 31px;
  border-radius:23px;
  background:var(--en-navy);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  position:relative;
  overflow:hidden;
}

.en-challenge-cta::after{
  content:"";
  position:absolute;
  width:230px;
  height:230px;
  border:1px solid rgba(255,255,255,.06);
  border-radius:50%;
  left:-80px;
  bottom:-115px;
  box-shadow:0 0 0 34px rgba(255,255,255,.022);
}

.en-challenge-cta > *{position:relative;z-index:2}

.en-challenge-cta span{
  direction:ltr;
  display:block;
  color:var(--en-gold);
  font-size:9px;
  font-weight:900;
  letter-spacing:2px;
}

.en-challenge-cta h3{
  margin:7px 0 2px;
  color:#fff;
  font-size:21px;
  font-weight:900;
}

.en-challenge-cta p{
  margin:0;
  color:#9eb0c5;
  font-size:13px;
}

.en-challenge-cta-btn{
  min-width:185px;
  min-height:48px;
  border-radius:999px;
  background:#f7f1e6;
  color:var(--en-navy);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-size:12px;
  font-weight:900;
  transition:.2s ease;
}

.en-challenge-cta-btn:hover{
  transform:translateY(-2px);
  background:#fff;
}

/* Reveal */
.en-challenges [data-en-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease, transform .55s ease;
}

.en-challenges [data-en-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* Challenges landing page */
.en-challenges-page{
  max-width:1120px;
  margin:0 auto;
  padding:28px 24px 85px;
}

.en-challenges-page .en-challenges-shell{
  margin-top:0;
}

.en-challenges-page-head{
  padding:26px 4px 18px;
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:20px;
}

.en-challenges-page-head span{
  display:block;
  color:#b6924d;
  font-size:11px;
  font-weight:900;
  letter-spacing:1px;
}

.en-challenges-page-head h1{
  margin:7px 0 0;
  color:var(--en-navy,#0d315f);
  font-size:38px;
  font-weight:900;
}

.en-challenges-page-head p{
  max-width:480px;
  margin:0;
  color:#8c98a8;
  line-height:1.8;
  font-size:14px;
}

.en-challenge-card:target{
  outline:3px solid rgba(214,181,116,.28);
  border-color:#d6b574;
}

@media(max-width:900px){
  .en-challenges-shell{padding:28px}
  .en-challenge-intro{
    grid-template-columns:1fr;
    padding:36px;
  }
  .en-challenge-intro-mark{min-height:145px}
}

@media(max-width:700px){
  .en-challenges-shell{
    padding:16px;
    border-radius:25px;
  }
  .en-challenge-intro{
    min-height:auto;
    padding:28px 23px;
    border-radius:22px;
  }
  .en-challenge-intro h2{font-size:33px}
  .en-challenge-intro p{font-size:14px}
  .en-challenge-intro-mark{display:none}
  .en-challenge-grid{grid-template-columns:1fr}
  .en-challenge-card{min-height:280px}
  .en-challenge-cta{
    align-items:flex-start;
    flex-direction:column;
  }
  .en-challenge-cta-btn{
    width:100%;
  }
  .en-challenges-page-head{
    align-items:flex-start;
    flex-direction:column;
  }
  .en-challenges-page-head h1{font-size:32px}
}