.arcade-modal{position:fixed;inset:0;z-index:99999;display:none;align-items:center;justify-content:center;padding:24px}
.arcade-modal.is-open,.arcade-modal.active{display:flex}
.arcade-modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.82);backdrop-filter:blur(5px)}
.arcade-modal-dialog{position:relative;z-index:2;width:min(760px,94vw);max-height:90vh;overflow:auto;border:1px solid currentColor;padding:32px;background:#0b0b12;box-shadow:0 0 35px rgba(255,255,255,.12)}
.arcade-modal-close{position:absolute;right:14px;top:8px;background:none;border:0;color:inherit;font-size:34px;cursor:pointer}
.arcade-game-head h2{font-size:clamp(28px,5vw,48px);margin:.2em 0}
.arcade-game-head p,.arcade-game-board p{font-size:17px;line-height:1.55}
.arcade-stats{display:flex;gap:28px;margin:24px 0;font-size:16px}
.arcade-target{min-height:110px;min-width:260px;padding:22px 28px;font-size:18px;cursor:pointer}
.memory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:20px}
.memory-card{aspect-ratio:1;border:1px solid currentColor;background:transparent;color:inherit;font-size:28px;cursor:pointer}
.memory-card.matched{opacity:.55}
body.modal-open{overflow:hidden}
@media(max-width:600px){.arcade-modal{padding:10px}.arcade-modal-dialog{padding:24px 16px}.memory-grid{grid-template-columns:repeat(4,1fr)}.arcade-target{min-width:0;width:100%}}