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#fff6}.c4-modal-actions{display:flex;gap:1.5rem;justify-content:center;margin-top:2rem}@media (max-width: 600px){.c4-board-wrapper{max-width:99vw;padding:.7rem 0;border-radius:18px}.c4-board-grid{padding:6px;border-radius:12px}.c4-header{flex-direction:column;gap:1rem}.c4-player-info{min-width:110px;padding:.5rem .8rem;border-radius:10px}.c4-modal{padding:1.2rem .5rem;border-radius:10px}}.c4-col-hover{background:linear-gradient(180deg,#43e97b21,#1976d21a);box-shadow:0 0 0 8px #43e97b21;transition:background .18s,box-shadow .18s;z-index:2}.c4-col-hover.red{background:linear-gradient(180deg,#e539352e,#ff8a8021);box-shadow:0 0 0 8px #e5393521}.c4-col-hover.yellow{background:linear-gradient(180deg,#fbc02d2e,#fff59d21);box-shadow:0 0 0 8px #fbc02d21}.c4-disc.preview{opacity:.85!important;border:none!important;box-shadow:0 0 16px 4px #43e97b55,0 2px 12px #1976d255,0 0 0 6px #ffffff1a;background-blend-mode:lighten;animation:c4-preview-bounce .7s cubic-bezier(.33,1,.68,1) infinite 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.2s}.memory-card:active{box-shadow:0 4px 16px #1e88e52e}.memory-card-inner{width:100%;height:100%;position:absolute;top:0;left:0;transition:transform .5s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}.memory-card.flipped .memory-card-inner{transform:rotateY(180deg)}.memory-card-front,.memory-card-back{width:100%;height:100%;position:absolute;top:0;left:0;display:flex;align-items:center;justify-content:center;backface-visibility:hidden;border-radius:12px}.memory-card-front{background:linear-gradient(135deg,#fff 60%,#e3e8f0);color:#222;font-size:2.1rem;font-weight:700;box-shadow:0 2px 8px #1e88e51a}.memory-card-back{background:linear-gradient(135deg,#ff6b35,#f7931e);color:#fff;font-size:2.2rem;font-weight:800;display:flex;align-items:center;justify-content:center;transform:rotateY(180deg);box-shadow:0 2px 8px #ff6b351a}.memory-card.matched .memory-card-inner{filter:grayscale(.7) brightness(1.2);animation:match-glow .7s}@keyframes match-glow{0%{box-shadow:0 0 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