.arcade-hero {
  padding: 105px 0 44px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .72fr);
  align-items: end;
  gap: 42px;
}

.arcade-hero h1 { max-width: 720px; }
.arcade-hero .lead { margin-bottom: 0; }

.arcade-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.arcade-summary div {
  min-height: 116px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(13, 28, 36, .88);
  box-shadow: var(--soft-shadow);
}

.arcade-summary strong {
  margin-bottom: 5px;
  color: var(--cyan);
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  letter-spacing: -.04em;
}

.arcade-summary span {
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.35;
}

.arcade-library { padding: 34px 0 88px; }
.library-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 18px;
}
.library-heading h2 { margin-bottom: 0; }
.library-heading .eyebrow { margin-bottom: 8px; }

.arcade-grid { align-items: stretch; }
.game-card[hidden] { display: none; }
.game-card .card-body { display: flex; min-height: 230px; flex-direction: column; }
.game-card .card-link { margin-top: auto; }

.preview-2048,
.memory-preview,
.ttt-preview,
.mine-preview {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 26px;
  display: grid;
  gap: 8px;
  background: linear-gradient(145deg, #0b222b, #08161d);
}

.preview-2048,
.memory-preview { grid-template-columns: repeat(4, 1fr); }

.preview-2048::before,
.memory-preview::before,
.ttt-preview::before,
.mine-preview::before,
.pong-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 72% 24%, rgba(104, 208, 223, 0.14), transparent 42%);
}

.preview-2048 span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  min-width: 0;
  border: 1px solid rgba(145, 190, 202, 0.14);
  border-radius: 10px;
  color: rgba(245, 250, 251, 0.34);
  background: rgba(255, 255, 255, 0.035);
  font-size: clamp(0.78rem, 2vw, 1.2rem);
  font-weight: 800;
}

.preview-2048 .tile-2 { color: #0a171c; background: #b7edf1; }
.preview-2048 .tile-4 { color: #0a171c; background: #8fdce6; }
.preview-2048 .tile-8 { color: #102019; background: #8bcf9b; }
.preview-2048 .tile-16 { color: #261d08; background: #f2c75c; }
.preview-2048 .tile-32 { color: #251309; background: #ed8b45; }
.preview-2048 .tile-64 { color: #fff; background: #d7605e; }

.memory-preview { perspective: 700px; }
.memory-preview span {
  position: relative;
  z-index: 1;
  min-width: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(145, 190, 202, 0.18);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(104, 208, 223, 0.16), rgba(255, 255, 255, 0.035));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.06);
}
.memory-preview .face-up {
  padding: 4px;
  background: #eafcfe;
}
.memory-preview .face-up img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,.16));
}

.pong-preview {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(145deg, #0a2430, #061117);
}
.pong-preview i {
  position: absolute;
  left: 50%;
  top: 10%;
  bottom: 10%;
  border-left: 3px dashed rgba(104,208,223,.18);
}
.pong-preview .paddle {
  position: absolute;
  top: 31%;
  width: 13px;
  height: 42%;
  border-radius: 8px;
  box-shadow: 0 0 18px rgba(104,208,223,.3);
}
.pong-preview .left { left: 13%; background: var(--cyan); }
.pong-preview .right { right: 13%; top: 25%; background: var(--mint); }
.pong-preview .pong-ball {
  position: absolute;
  left: 57%;
  top: 42%;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 24px rgba(242,199,92,.5);
}

.ttt-preview {
  grid-template-columns: repeat(3, 1fr);
  padding: 30px;
}
.ttt-preview span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(145,190,202,.16);
  border-radius: 12px;
  background: rgba(255,255,255,.03);
  font-size: clamp(1rem, 4vw, 2rem);
  font-weight: 900;
}
.ttt-preview .x { color: var(--cyan); }
.ttt-preview .o { color: var(--gold); }

.mine-preview {
  grid-template-columns: repeat(4, 1fr);
  padding: 28px;
}
.mine-preview span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(145,190,202,.15);
  border-radius: 9px;
  color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.035);
  font-weight: 900;
}
.mine-preview .one { color: var(--cyan); background: rgba(255,255,255,.02); }
.mine-preview .two { color: var(--mint); background: rgba(255,255,255,.02); }
.mine-preview .flag { color: var(--gold); background: rgba(242,199,92,.08); }
.mine-preview .mine { color: #fff; background: rgba(239,109,104,.2); }

@media (max-width: 980px) {
  .arcade-hero { grid-template-columns: 1fr; }
  .arcade-summary { max-width: 720px; }
}

@media (max-width: 720px) {
  .arcade-hero { padding-top: 86px; }
  .library-heading { align-items: flex-start; flex-direction: column; }
  .library-heading .search-box { width: 100%; }
  .arcade-summary { grid-template-columns: 1fr; }
  .arcade-summary div { min-height: 84px; }
  .preview-2048,
  .memory-preview,
  .ttt-preview,
  .mine-preview { padding: 20px; gap: 6px; }
  .game-card .card-body { min-height: 0; }
}