:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden}button{font-family:inherit;cursor:pointer;border:none;outline:none}button:focus{outline:none}html{scroll-behavior:smooth}::selection{background:#667eea4d;color:inherit}::-moz-selection{background:#667eea4d;color:inherit}*{margin:0;padding:0;box-sizing:border-box}#root{width:100%;min-height:100vh}.app{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;display:flex;align-items:center;justify-content:center;padding:20px;position:relative;overflow:hidden}.app:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern 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h3{font-size:1.3rem;font-weight:700;color:#495057;margin-bottom:10px}.feature-card p{font-size:1rem;color:#6c757d;line-height:1.6}.best-time-display{margin-bottom:30px}.best-time{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,gold,#ffed4e);padding:15px 25px;border-radius:50px;box-shadow:0 4px 15px #ffd7004d;border:2px solid rgba(255,215,0,.2)}.best-time-label{font-size:1rem;font-weight:600;color:#856404}.best-time-value{font-size:1.2rem;font-weight:700;color:#856404}.best-score{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,#ff6b6b,#ff8e8e);padding:15px 25px;border-radius:50px;box-shadow:0 4px 15px #ff6b6b4d;border:2px solid rgba(255,107,107,.2);margin-top:10px}.best-score-label{font-size:1rem;font-weight:600;color:#721c24}.best-score-value{font-size:1.2rem;font-weight:700;color:#721c24}.start-button{background:linear-gradient(135deg,#28a745,#20c997);color:#fff;border:none;padding:20px 40px;font-size:1.3rem;font-weight:700;border-radius:16px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 24px #28a7454d;position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:12px}.start-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.start-button:hover:before{left:100%}.start-button:hover{transform:translateY(-3px);box-shadow:0 12px 32px #28a74566}.start-button:active{transform:translateY(-1px)}.button-text{font-size:1.3rem;font-weight:700}.button-icon{font-size:1.2rem}.game-layout{display:grid;grid-template-columns:1fr 2fr 1fr;gap:30px;align-items:start;min-height:80vh;height:80vh}.left-column{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.logo-section{text-align:center;background:#fffc;padding:30px;border-radius:20px;box-shadow:0 8px 24px #0000001a;border:1px solid rgba(0,0,0,.05)}.game-logo{margin-bottom:20px}.logo-image-small{width:80px;height:80px;border-radius:15px;box-shadow:0 6px 20px #00000026;transition:transform .3s ease}.logo-image-small:hover{transform:scale(1.1)}.title{font-size:2.5rem;font-weight:800;background:linear-gradient(45deg,#667eea,#764ba2,#f093fb);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:10px;letter-spacing:-1px;text-shadow:0 2px 4px rgba(0,0,0,.1)}.subtitle{color:#666;font-size:1rem;font-weight:500;margin-bottom:20px}.round-info-display{margin-top:20px}.round-badge{display:inline-flex;flex-direction:column;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:15px 20px;border-radius:15px;box-shadow:0 4px 15px #667eea4d}.round-number{font-size:1.1rem;font-weight:700;margin-bottom:5px}.round-grid{font-size:.9rem;font-weight:600;opacity:.9}.center-column{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;height:100%}.game-board{display:flex;flex-direction:column;align-items:center;background:#fffc;padding:30px;border-radius:20px;box-shadow:0 8px 24px #0000001a;border:1px solid rgba(0,0,0,.05);position:relative;min-height:400px;height:100%;justify-content:center}.game-instructions{margin-bottom:20px;text-align:center}.game-instructions p{font-size:1.1rem;font-weight:600;color:#495057;background:linear-gradient(45deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.grid-container{display:grid;gap:8px;max-width:500px;width:100%;height:100%;max-height:100%}.cell{aspect-ratio:1;border-radius:12px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;position:relative;box-shadow:0 4px 12px #00000026;border:2px solid transparent;overflow:hidden;min-height:40px}.cell:before{content:"";position:absolute;inset:0;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.1) 50%,transparent 70%);transform:translate(-100%);transition:transform .6s}.cell:hover:before{transform:translate(100%)}.cell:hover{transform:scale(1.05) translateY(-2px);box-shadow:0 8px 20px #00000040;border-color:#ffffff4d}.cell:active{transform:scale(.98)}.cell.revealed{cursor:default;animation:reveal .5s ease-out}@keyframes reveal{0%{transform:scale(.8);opacity:.5}to{transform:scale(1);opacity:1}}.cell.revealed:hover{transform:none;box-shadow:0 4px 12px #00000026}.right-column{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.stats-panel{background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:16px;padding:30px;box-shadow:0 4px 12px #0000000d;border:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column;gap:20px;min-width:200px}.stat-item{display:flex;flex-direction:column;align-items:center;gap:8px;padding:15px;background:#ffffffb3;border-radius:12px;border:1px solid rgba(0,0,0,.05)}.stat-label{font-size:.9rem;font-weight:600;color:#6c757d;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:1.8rem;font-weight:700;color:#495057}.timer .stat-value{color:#dc3545;animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.round-result{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;padding:12px 20px;border-radius:12px;font-size:1.2rem;font-weight:700;animation:slideInResult .5s ease-out;box-shadow:0 4px 12px #0000001a;z-index:10;pointer-events:none}.round-result.correct{background:linear-gradient(135deg,#d4edda,#c3e6cb);color:#155724;border:2px solid 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p{color:#dee2e6}.round-summary{background:#ffffff1a;border-color:#fff3}.round-time{background:#007bff33;border-color:#007bff4d;color:#74b9ff}.round-result.correct{background:linear-gradient(135deg,#28a74533,#28a7451a);border-color:#28a745}.round-result.wrong{background:linear-gradient(135deg,#dc354533,#dc35451a);border-color:#dc3545}.accuracy-result{color:#17a2b8!important}.round-result-indicator.correct{background:#28a74533;border-color:#28a7454d;color:#4ade80}.round-result-indicator.wrong{background:#dc354533;border-color:#dc35454d;color:#f87171}.round-summary{background:linear-gradient(135deg,#343a40e6,#495057e6);border-color:#fff3}.round-summary h3{color:#f8f9fa;background:linear-gradient(45deg,#74b9ff,#a29bfe);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.feature-card{background:linear-gradient(135deg,#343a40e6,#495057e6);border-color:#ffffff1a}.feature-card h3{color:#f8f9fa}.feature-card 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dark){.score-breakdown{background:#ffffff1a;border-color:#fff3}.score-breakdown h4{color:#f8f9fa}.breakdown-item span:first-child{color:#adb5bd}.breakdown-item span:last-child{color:#f8f9fa}.breakdown-item.total span:last-child{color:#74b9ff}}.footer{position:fixed;bottom:0;left:0;right:0;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:15px 20px;text-align:center;border-top:1px solid rgba(0,0,0,.1);z-index:100}.footer-text{color:#000;font-size:.9rem;font-weight:500;margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}@media (prefers-color-scheme: dark){.footer{background:#212529e6;border-top:1px solid rgba(255,255,255,.1)}.footer-text{color:#000}}