/* HexaGameHub Challenge Landing v1 */
.challenge-body{
  min-height:100vh;
  background:
    radial-gradient(900px 420px at 15% -10%, rgba(103,232,249,.22), transparent 60%),
    radial-gradient(860px 480px at 90% 8%, rgba(167,139,250,.18), transparent 58%),
    #080816;
  color:var(--text);
}
.challenge-page{
  width:min(1040px, calc(100vw - 28px));
  min-height:100vh;
  margin:0 auto;
  display:grid;
  place-items:center;
  padding:32px 0;
}
.challenge-card{
  position:relative;
  width:100%;
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:28px;
  padding:18px;
  background:
    radial-gradient(600px 260px at 10% 0%, rgba(252,211,77,.12), transparent 62%),
    linear-gradient(180deg,rgba(255,255,255,.052),rgba(255,255,255,.016)),
    rgba(12,15,32,.92);
  box-shadow:var(--shadow);
}
.challenge-card::after{
  content:"";
  position:absolute;
  inset:auto -80px -100px auto;
  width:380px;
  height:260px;
  pointer-events:none;
  opacity:.20;
  background:radial-gradient(circle,rgba(103,232,249,.35),transparent 64%);
}
.challenge-back{
  display:inline-flex;
  margin:0 0 14px;
  color:var(--muted);
  text-decoration:none;
  font-weight:850;
}
.challenge-hero{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(260px,.9fr) minmax(280px,1.1fr);
  gap:20px;
  align-items:center;
}
.challenge-art{
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  border-radius:24px;
  background:rgba(0,0,0,.24);
  box-shadow:0 18px 50px rgba(0,0,0,.24);
}
.challenge-art img{
  display:block;
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.challenge-copy h1{
  margin:3px 0 8px;
  font-size:clamp(2rem,6vw,4.2rem);
  line-height:.96;
}
.challenge-copy p{
  max-width:52ch;
  color:var(--muted);
}
.challenge-target{
  display:inline-grid;
  gap:3px;
  margin:14px 0;
  padding:12px 16px;
  border:1px solid rgba(252,211,77,.28);
  border-radius:18px;
  background:rgba(252,211,77,.08);
}
.challenge-target span{
  color:var(--muted);
  font-size:.72rem;
  font-weight:950;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.challenge-target strong{
  color:#ffd369;
  font-size:clamp(1.6rem,4vw,2.6rem);
  line-height:1;
}
.challenge-actions{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:6px;
}
.challenge-steps{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:8px;
  margin-top:16px;
}
.challenge-steps span{
  min-height:44px;
  display:grid;
  place-items:center;
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
  color:#dfe7ff;
  background:rgba(255,255,255,.035);
  font-weight:900;
}
@media(max-width:760px){
  .challenge-page{
    width:min(100vw - 16px, 620px);
    padding:12px 0;
    align-items:start;
  }
  .challenge-card{
    padding:12px;
    border-radius:20px;
  }
  .challenge-hero{
    grid-template-columns:1fr;
    gap:12px;
  }
  .challenge-copy h1{
    font-size:2.25rem;
  }
  .challenge-actions{
    display:grid;
    grid-template-columns:1fr;
  }
  .challenge-steps{
    grid-template-columns:1fr;
  }
}


/* Challenge Page v2: stronger share/traffic landing */
.challenge-card{
  isolation:isolate;
}
.challenge-card::before{
  content:"";
  position:absolute;
  inset:18px;
  border-radius:24px;
  pointer-events:none;
  border:1px solid rgba(103,232,249,.08);
}
.challenge-copy .eyebrow::before{
  content:"🎯 ";
}
.challenge-target{
  min-width:min(100%, 260px);
  box-shadow:0 0 28px rgba(252,211,77,.10);
}
.challenge-target strong{
  letter-spacing:-.035em;
}
.challenge-actions .btn-primary{
  box-shadow:0 16px 36px rgba(103,232,249,.18), 0 0 0 1px rgba(255,255,255,.08) inset;
}
.challenge-steps span{
  position:relative;
  overflow:hidden;
}
.challenge-steps span::after{
  content:"";
  position:absolute;
  inset:auto -18px -34px auto;
  width:70px;
  height:70px;
  border-radius:50%;
  background:rgba(103,232,249,.08);
}
@media(max-width:760px){
  .challenge-card::before{
    inset:10px;
    border-radius:18px;
  }
  .challenge-copy .eyebrow{
    margin-top:2px;
  }
}