@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;700;800&family=Space+Grotesk:wght@500;700&display=swap";:root{font-family:Plus Jakarta Sans,Inter,Segoe UI,Roboto,sans-serif;color:#e2e8f0;background:#020617}*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:flex;justify-content:center;align-items:flex-start;padding:.75rem;overflow:auto;background:radial-gradient(circle at top,#0f172a,#020617 55%)}#root{width:min(760px,96vw)}.game-shell{background:#0f172ab8;border:1px solid rgba(148,163,184,.2);border-radius:22px;padding:1rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 20px 40px #02061773;max-height:calc(100dvh - 1.5rem);overflow:auto}.game-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem}.game-header h1{margin:0;font-family:Space Grotesk,Plus Jakarta Sans,sans-serif;font-size:clamp(1.3rem,2vw,1.8rem)}.subtitle{margin:.3rem 0 0;color:#94a3b8;font-size:.9rem}.reset-btn{border:0;border-radius:12px;background:linear-gradient(135deg,#38bdf8,#3b82f6);color:#fff;font-weight:700;padding:.6rem .95rem;cursor:pointer;transition:transform .2s ease,filter .2s ease}.reset-btn:hover{transform:translateY(-1px);filter:brightness(1.05)}.game-stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.65rem;margin-bottom:1rem}.stat-card--wide{grid-column:span 5}.game-controls{display:flex;align-items:center;gap:.6rem;margin-bottom:.8rem}.difficulty-select-label{font-size:.82rem;color:#cbd5e1;font-weight:600}.difficulty-select{background:#0f172ae6;border:1px solid rgba(148,163,184,.35);color:#e2e8f0;border-radius:10px;padding:.38rem .62rem;font-size:.82rem;font-weight:600}.stat-card{background:#1e293bd9;border:1px solid rgba(148,163,184,.2);border-radius:12px;padding:.55rem .7rem;display:flex;flex-direction:column;gap:.18rem}.stat-card span{font-size:.72rem;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em}.stat-card strong{font-size:1rem}.grid-container{display:grid;gap:.5rem;width:min(100%,48vh,520px);aspect-ratio:1 / 1;margin-inline:auto}.grid-container.reward-pop{animation:rewardPop .45s ease}.cards{aspect-ratio:1 / 1;width:100%;border:1px solid rgba(148,163,184,.3);border-radius:12px;background:linear-gradient(145deg,#1e293b,#0f172a);color:#f8fafc;font-size:clamp(.9rem,2vw,1.3rem);font-weight:700;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .25s ease}.cards:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 18px #0f172a66}.cards.is-flipped{background:linear-gradient(145deg,#22d3ee,#3b82f6);border-color:#bae6fde6}.cards.is-matched{background:linear-gradient(145deg,#22c55e,#16a34a);border-color:#bbf7d0f2;color:#f0fdf4;box-shadow:0 0 0 2px #86efac40,0 10px 18px #15803d59;animation:matchedPulse .55s ease}.cards:disabled{cursor:default;opacity:.96}.reward-slot{height:1.5rem;margin-top:.6rem;display:grid;place-items:center}.win-screen{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:.8rem;padding:1rem;border-radius:16px;background:#0f172a8c;border:1px solid rgba(134,239,172,.35)}.win-screen h2{margin:0}.win-screen p{margin:0;color:#cbd5e1}.win-actions{display:flex;gap:.6rem;flex-wrap:wrap;justify-content:center}.reward-text{margin:0;text-align:center;color:#86efac;font-weight:700;letter-spacing:.01em;opacity:0;transform:translateY(6px)}.reward-text.is-visible{animation:rewardTextIn .45s ease forwards}@keyframes rewardPop{0%{transform:scale(1)}50%{transform:scale(1.012)}to{transform:scale(1)}}@keyframes matchedPulse{0%{transform:scale(1);filter:saturate(1)}50%{transform:scale(1.06);filter:saturate(1.25)}to{transform:scale(1);filter:saturate(1)}}@keyframes rewardTextIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media(max-width:700px){.game-header{flex-direction:column;align-items:flex-start}.game-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stat-card--wide{grid-column:span 2}.grid-container{width:min(100%,62vw,420px)}}