.memory-grid{display:grid;grid-template-columns:repeat(var(--columns),minmax(0,1fr));gap:18px;max-width:760px;margin:auto}.memory-card{aspect-ratio:1;min-height:120px;background:#d5c1e9;border:3px solid #b69acc;border-bottom-width:8px;border-radius:24px;color:#7954b2;font-size:clamp(48px,8vw,78px);transition:background .2s,transform .2s}.memory-card:hover{background:#e1d0ef}.memory-card.face-up{background:#fffaf0;transform:translateY(-3px)}.memory-card.matched{background:#e3edda;border-color:#abc393;opacity:1}.memory-grid:has(> :last-child:nth-child(4)){max-width:440px}@media(max-width:650px){.memory-grid{gap:10px;grid-template-columns:repeat(2,minmax(0,1fr));max-width:330px}.memory-card{min-height:90px;max-height:130px;font-size:50px;border-radius:18px}}@media(prefers-reduced-motion:reduce){.memory-card{transition:none}}