*{box-sizing:border-box}:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}.card{background:#fff;border:2px solid #ddd;border-radius:8px;padding:4px;cursor:pointer;transition:transform .1s,border-color .2s,box-shadow .2s,background-color .2s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:center;min-height:0}@media(min-width:600px){.card{border:3px solid #ddd;border-radius:12px;padding:8px}}.card:active{transform:scale(.97)}.card.selected{border-color:#007bff;box-shadow:0 0 0 4px #007bff4d}.card.suggested{border-color:#ffc107;background-color:#ffc1071a;box-shadow:0 0 0 4px #ffc1074d;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{box-shadow:0 0 0 4px #ffc1074d}50%{box-shadow:0 0 0 6px #ffc10780}}.card.correct{border-color:#28a745;background-color:#28a74526;box-shadow:0 0 0 4px #28a7454d}.card.incorrect{border-color:#dc3545;background-color:#dc354526;box-shadow:0 0 0 4px #dc35454d}.card.flipping{animation:flip .6s ease-in-out}.card.empty-card{background:#fff;border-color:#f0f0f0;cursor:default;opacity:.5}.card.empty-card:active{transform:none}@keyframes flip{0%{transform:rotateY(0)}50%{transform:rotateY(90deg)}to{transform:rotateY(0)}}.shapes-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:100%;height:100%;min-height:0}.shape{width:70%;flex:1;max-height:30%;min-height:0}@media(min-width:600px){.shapes-container{gap:6px}.shape{max-height:25%}}.board{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(4,1fr);gap:6px;padding:4px;max-width:100%;width:100%;height:100%;box-sizing:border-box}@media(min-width:600px){.board{grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(3,1fr);max-width:600px;margin:0 auto;gap:10px;padding:12px}}.score-display{display:flex;align-items:center;justify-content:center;gap:6px;font-size:1rem;font-weight:500}.score-label{color:#666}.score-value{color:#333;font-weight:700;font-size:1.25rem}.app{height:100vh;height:100dvh;display:flex;flex-direction:column;background:#f5f5f5;overflow:hidden}.header{display:flex;flex-direction:row;align-items:center;justify-content:space-between;padding:8px 16px;background:#fff;box-shadow:0 2px 4px #0000001a;flex-shrink:0}.title{margin:0;font-size:1.5rem;font-weight:700;color:#333}.header-info{display:flex;align-items:center;gap:16px}.cards-remaining{display:flex;align-items:center;gap:6px;font-size:.875rem;color:#666}.cards-remaining-label{font-weight:500}.cards-remaining-count{font-weight:700;font-size:1rem;color:#007bff;min-width:20px;text-align:center}.main{flex:1;display:flex;flex-direction:column;padding:8px;min-height:0;position:relative}.no-set-warning{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#ff9800f2;color:#fff;padding:20px 32px;border-radius:12px;box-shadow:0 4px 12px #0000004d;z-index:1000;animation:fadeIn .3s ease-in}.no-set-warning p{margin:0 0 16px;font-size:1.1rem;font-weight:600;text-align:center}.no-set-warning button{padding:10px 20px;font-size:1rem;font-weight:600;color:#fff;background:#007bff;border:none;border-radius:8px;cursor:pointer;transition:background .2s;width:100%}.no-set-warning button:hover{background:#0056b3}.no-set-warning button:active{transform:scale(.98)}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.game-over{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:32px;text-align:center}.game-over p{margin:0;font-size:1.25rem;color:#333}.game-over button{padding:12px 24px;font-size:1rem;font-weight:600;color:#fff;background:#007bff;border:none;border-radius:8px;cursor:pointer;transition:background .2s}.game-over button:hover{background:#0056b3}.game-over button:active{transform:scale(.98)}