.collection { width: min(100%, 760px); }
.collection-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 30px; }
.collection-header h1 { font-size: clamp(27px, 5vw, 36px); }
.collection-header .icon-button { flex: 0 0 44px; }
.game-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.game-card { display: block; overflow: hidden; border: 1px solid var(--key-border); border-radius: 18px; background: var(--board); color: var(--text); text-decoration: none; transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.game-card:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
.game-art { padding: 16px 24px; background: color-mix(in srgb, var(--primary) 7%, var(--board)); }
.game-art svg { display: block; width: 100%; height: auto; }
.sudoku-card .game-art { background: color-mix(in srgb, #5185ba 10%, var(--board)); }
.card-details { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 22px; }
.card-details h2 { margin: 0; font-size: 23px; letter-spacing: -.4px; }
.card-beta { margin-left: 5px; font-size: 12px; font-weight: 500; letter-spacing: 0; color: var(--muted); vertical-align: super; }
.preview-grid { stroke: var(--key-border); stroke-width: .7; opacity: .6; }
.preview-snake { stroke: #419773; stroke-width: 19px; stroke-linecap: round; stroke-linejoin: round; }
.preview-head { fill: #327a5c; }
.preview-eye { fill: white; }
.preview-food { fill: #db805b; }
.preview-sudoku-grid { stroke: var(--muted); stroke-width: 1.5; }
.preview-cell { fill: color-mix(in srgb, #5185ba 22%, var(--board)); }
.preview-digits { fill: var(--text); font-size: 23px; font-weight: 600; }
@media (hover: hover) and (pointer: fine) {
  .game-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: 0 10px 24px rgb(0 0 0 / 8%); }
}
@media (max-width: 520px) {
  .game-cards { grid-template-columns: 1fr; gap: 18px; }
  .collection-header { margin-bottom: 24px; }
  .game-art { padding: 8px 40px; }
  .card-details { padding: 18px 20px; }
}
@media (prefers-reduced-motion: reduce) { .game-card { transition: none; } .game-card:hover { transform: none; } }