*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:#0a0a0a;min-height:100vh;display:flex;justify-content:center;align-items:center;padding:10px;color:#fff}#root{width:100%;max-width:1200px}.app{display:flex;flex-direction:column;align-items:center;gap:10px;max-height:97vh;transform:scale(.8);transform-origin:top center}.board{width:100%;transition:max-width .35s ease}.game-header{display:flex;flex-direction:column;align-items:center;gap:20px;background:#0f172ae6;padding:30px;border-radius:20px;box-shadow:0 10px 30px #00000080;width:100%;border:1px solid rgba(255,255,255,.1)}.game-header h1{font-size:2.5rem;color:#fff;text-align:center}.stats{display:flex;gap:30px;justify-content:center;width:100%}.stat-item{display:flex;flex-direction:column;align-items:center;gap:5px}.stat-label{font-size:.9rem;color:#a1a1aa;font-weight:600;text-transform:uppercase;letter-spacing:1px}.stat-value{font-size:2rem;font-weight:700;color:#818cf8}.reset-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 30px;font-size:1.1rem;font-weight:600;border-radius:10px;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 15px #0003}.reset-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000004d}.reset-btn:active{transform:translateY(0)}.difficulty{display:flex;gap:10px;justify-content:center}.win-message{position:fixed;inset:0;display:flex;justify-content:center;align-items:center;background:#000000bf;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:1000}.win-message h2{font-size:2rem;margin-bottom:20px;gap:20px}.win-message p{font-size:1.4rem;color:#a1a1aa;margin-top:10px;margin-bottom:20px}.new-record{margin:18px 0 10px;display:flex;flex-direction:column;gap:10px}.record{background:#818cf81f;border:1px solid rgba(255,255,255,.12);padding:10px 16px;border-radius:12px;font-size:1.2rem;font-weight:700;letter-spacing:3px;animation:recordSlide .35s ease;color:orange}@keyframes recordSlide{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.win-message button{margin-top:10px}.win-modal{background:#0f172af2;padding:40px 60px;border-radius:20px;text-align:center;box-shadow:0 20px 60px #000000b3;border:1px solid rgba(255,255,255,.1);animation:scaleIn .35s ease;transform:scale(.8);transform-origin:center}@keyframes scaleIn{0%{transform:scale(.65);opacity:0}to{transform:scale(.8);opacity:1}}.cards-grid{display:grid;margin-top:15px;gap:15px;width:100%}.card{aspect-ratio:1;perspective:1600px;cursor:pointer;-webkit-tap-highlight-color:transparent}.card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .6s;will-change:transform}.card-inner.flipped{transform:rotateY(180deg)}.card-front,.card-back{position:absolute;width:100%;height:100%;display:flex;align-items:center;justify-content:center;border-radius:15px;box-shadow:0 6px 18px #00000059;backface-visibility:hidden;-webkit-backface-visibility:hidden}.card-front{background:linear-gradient(to bottom,#0f172a,#0b0f1a);font-size:3rem;border:2px solid rgba(255,255,255,.1)}.card-back{background:#1e1e1e;font-size:4rem;border:2px solid rgba(255,255,255,.1);transform:rotateY(180deg)}.card-inner.matched{pointer-events:none}.card-inner.matched .card-back{background:#7ed32133;border:2px solid rgba(126,211,33,.5);box-shadow:0 0 12px #7ed321cc,0 0 25px #7ed32199}.card:hover .card-inner:not(.flipped){transform:rotateY(18deg) scale(1.03)}.card:active .card-inner{transform:scale(.97)}.card-inner.matched{animation:matchPop .45s ease}@keyframes matchPop{0%{transform:rotateY(180deg) scale(1)}50%{transform:rotateY(180deg) scale(1.15)}to{transform:rotateY(180deg) scale(1)}}.timer{position:fixed;top:20px;left:20px;background:#0f172ad9;color:#fff;font-size:1.2rem;font-weight:700;padding:8px 14px;border-radius:10px;box-shadow:0 4px 12px #0000004d;z-index:1000}.highscore{position:fixed;top:20px;right:20px;display:flex;flex-direction:column;gap:10px;background:#0f172ad9;color:#fff;font-size:1.1rem;font-weight:700;padding:10px 14px;border-radius:10px;box-shadow:0 4px 12px #0000004d;z-index:1000}.highscore-title{font-size:1rem;font-weight:700;color:#818cf8;text-align:center;margin-bottom:6px;letter-spacing:1px}.score-item{display:flex;justify-content:space-between;min-width:140px}.lable{margin-right:8px}.value{text-align:right}@media(max-width:1100px){.app{transform:scale(.65)}.game-header{margin-top:250px}.game-header h1{font-size:2rem}.cards-grid{gap:10px}.card-front,.card-back{font-size:2.5rem}.card-back{font-size:3.5rem}.card-inner{transition:transform .45s}.stats{gap:20px}.stat-value{font-size:1.5rem}.timer{top:10px;left:50%;transform:translate(-50%);font-size:1.1rem;padding:6px 10px}.highscore{top:50px;right:50%;transform:translate(50%);font-size:1rem;padding:6px 10px;width:220px}}@media(max-width:400px){.app{transform:scale(.8)}.game-header{padding:20px;margin-top:170px}.game-header h1{font-size:1.5rem}.card-front,.card-back{font-size:2rem}.card-back{font-size:3rem}.card-inner{transition:transform .45s}@media(max-height:740px){.game-header{margin-top:210px}}}