.game-header{text-align:center;margin-bottom:2rem}.game-header h1{font-size:2.5rem;color:var(--text-color);margin-bottom:.5rem}.game-header p{font-size:1.1rem;color:var(--text-muted-color)}.game-container{max-width:800px;margin:0 auto}.game-settings{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;margin-bottom:1rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.setting-group{display:flex;align-items:center;gap:.5rem}.setting-group label{font-weight:700}.setting-group select{background-color:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:8px;padding:.5rem;font-family:var(--font-sans)}.status-container{margin-bottom:1rem}.game-status{display:flex;justify-content:center;gap:1rem;background-color:var(--surface-color);border:1px solid var(--border-color);padding:1rem;border-radius:12px}.status-item{font-size:1rem;color:var(--text-muted-color);padding:.5rem 1rem;border-radius:8px;transition:all .3s ease}.status-item strong{color:var(--text-color);font-weight:700}.game-status.multi .status-item.active{background-color:var(--primary-color);color:var(--bg-color)}.game-status.multi .status-item.active strong{color:var(--bg-color)}.game-info{text-align:center;margin-bottom:1.5rem;padding:1rem;background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;font-weight:700;color:var(--primary-color);min-height:50px}.game-board-container{padding:.5rem;background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;margin-bottom:2rem}.game-board{display:grid;justify-content:center;gap:.75rem}.memory-card{aspect-ratio:1 / 1;width:80px;height:80px;position:relative;transform-style:preserve-3d;transition:transform .6s;cursor:pointer}.memory-card.flipped{transform:rotateY(180deg)}.memory-card.matched{cursor:default;opacity:.5}.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:2.5rem}.card-back{background-color:var(--primary-color);border:2px solid var(--primary-hover-color);color:var(--bg-color)}.card-back:hover{background-color:var(--primary-hover-color)}.card-front{background-color:var(--surface-color);border:2px solid var(--border-color);color:var(--text-color);transform:rotateY(180deg)}.memory-card.wrong .card-front{animation:shake .4s;background-color:#ef4444}.memory-card.matched .card-front{background-color:#16a34a}.memory-card.matched.p1 .card-front{background-color:#3b82f6}.memory-card.matched.p2 .card-front{background-color:#f59e0b}@keyframes shake{0%,to{transform:rotateY(180deg) translate(0)}25%{transform:rotateY(180deg) translate(-5px)}75%{transform:rotateY(180deg) translate(5px)}}.game-controls{display:flex;justify-content:center}@media (max-width: 820px){.memory-card{width:70px;height:70px}}@media (max-width: 600px){.memory-card{width:60px;height:60px;font-size:2rem}}@media (max-width: 480px){.memory-card{width:50px;height:50px}.game-board{gap:.5rem}.game-settings{flex-direction:column;align-items:stretch}}