:root{
  --bg:#0a0b0f;
  --panel:#11131a;
  --text:#f2f3f8;
  --muted:#9aa1b5;
  --line:rgba(255,255,255,.12);
}

*{box-sizing:border-box}
html,body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto;
}

/* Prevent scroll when modal open */
body.modalOpen{
  overflow:hidden;
}

/* Sticky balance */
.balanceBar{
  position:sticky;
  top:0;
  z-index:10;
  background:linear-gradient(180deg, rgba(10,11,15,.95), rgba(10,11,15,.85));
  border-bottom:1px solid var(--line);
}
.balanceInner{
  max-width:1000px;
  margin:0 auto;
  padding:16px 18px;
  display:flex;
  align-items:baseline;
  gap:18px;
  flex-wrap:wrap;
}
.balanceLabel{
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:11px;
  color:var(--muted);
}
.balanceAmount{
  font-size:42px;
  font-weight:700;
  letter-spacing:.02em;
}
.cardId{
  margin-left:auto;
  font-size:12px;
  color:var(--muted);
}

.wrap{
  max-width:1000px;
  margin:0 auto;
  padding:28px 18px 60px;
}

.intro{
  margin-bottom:30px;
  color:var(--muted);
  font-size:15px;
  line-height:1.6;
}

/* Grid */
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:14px;
}
.card{
  grid-column:span 4;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:20px;
  padding:18px;
  transition: opacity .25s ease, transform .25s ease;
}
@media (max-width:900px){ .card{grid-column:span 6} }
@media (max-width:600px){ .card{grid-column:span 12} }

.card.owned{
  opacity:.55;
}
.card.owned .title{
  opacity:.9;
}

.title{
  font-size:16px;
  font-weight:600;
  margin-bottom:8px;
}
.price{
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
}

.actions{
  display:flex;
  gap:10px;
}
button{
  border-radius:14px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text);
  padding:10px 14px;
  cursor:pointer;
  transition: transform .12s ease, opacity .12s ease;
}
button:hover{ transform: translateY(-1px); }
button.primary{
  background:rgba(255,255,255,.06);
}
button:disabled{
  opacity:.35;
  cursor:not-allowed;
  transform:none;
}

/* Modal */
.modal{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  display:none;
  padding:18px;
}
.modal.show{display:grid;place-items:center}
.modalCard{
  max-width:760px;
  width:100%;
  background:var(--panel);
  border-radius:22px;
  border:1px solid var(--line);
  padding:22px;
  position:relative;
}
.modalClose{
  position:absolute;
  top:12px;
  right:12px;
}
.revealBox{
  margin-top:16px;
  border:1px dashed var(--line);
  border-radius:16px;
  padding:16px;
  white-space:pre-wrap;
}

/* Receipt */
.receiptTitle{
  font-size:18px;
  font-weight:650;
  margin:4px 0 14px;
}
.receiptMeta{
  display:grid;
  grid-template-columns: 1fr auto;
  gap:10px 14px;
  margin-top:12px;
  color:var(--muted);
  font-size:13px;
}
.receiptMeta div:nth-child(2n){
  text-align:right;
  color:var(--text);
}
.smallNote{
  margin-top:14px;
  color:var(--muted);
  font-size:13px;
}