:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);color:#333;min-height:100vh;display:flex;justify-content:center;align-items:center;background:url(/img/background.jpg) center/cover fixed}.app{text-align:center;padding:20px;max-width:1200px;margin:0 auto;display:flex;flex-direction:column;align-items:center}h1{font-size:2.5rem;margin-bottom:20px;color:#fff;letter-spacing:2px}h2{margin:10px 0;color:#34495e}.scoreboard{display:flex;justify-content:center;gap:30px;font-size:1.2rem;margin-bottom:20px}.scoreboard p{margin:0;color:#fff}.cards-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;width:100%;max-width:900px;margin:20px auto}.card{perspective:1000px;cursor:pointer;width:150px;height:200px;margin:0 auto;transition:transform .2s}.card:hover{transform:scale(1.05)}.card-inner{position:relative;width:100%;height:100%;transition:transform .6s;transform-style:preserve-3d}.card.show-back .card-inner{transform:rotateY(180deg)}.card-front,.card-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:12px;box-shadow:0 4px 10px #00000026;overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center}.card-front{background:#ffffff80;border-radius:12px;box-shadow:0 4px 10px #00000026}.card-front img{width:100px;height:100px;object-fit:contain;margin-bottom:10px}.card-front p{font-weight:700;font-size:1rem;text-transform:capitalize;margin:0}.card-back{background:#000;transform:rotateY(180deg);color:#fff;font-weight:700;font-size:1.3rem;letter-spacing:2px;display:flex;justify-content:center;align-items:center}button{background:#3498db;color:#fff;border:none;padding:12px 24px;font-size:1rem;border-radius:8px;cursor:pointer;transition:all .3s;margin-top:20px}button:hover{background:#2980b9;transform:scale(1.05)}button:active{transform:scale(.95)}.loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#0003;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;z-index:2000}.loader{border:6px solid rgba(255,255,255,.3);border-top:6px solid #3498db;border-radius:50%;width:60px;height:60px;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 480px){.cards-container{grid-template-columns:repeat(2,1fr);gap:12px;width:95%;margin:10px auto}.card{width:100%;height:150px}.card-front img{width:60px;height:60px}.card-front p{font-size:.8rem}.card-back{font-size:1rem}.scoreboard{flex-direction:column;gap:8px;font-size:1rem}button{padding:10px 14px;font-size:.85rem;min-width:100px;margin-top:10px}.card-front{background:#fff}}@media (min-width: 481px){h1{position:fixed;top:40px;left:50%;transform:translate(-50%);background-color:#000c;color:#fff;padding:10px 20px;border-radius:8px;z-index:1000;margin:0}.scoreboard{position:fixed;top:120px;left:50%;transform:translate(-50%);display:flex;gap:20px;z-index:1000}.scoreboard p{color:#fff;background-color:#000c;padding:5px 15px;border-radius:6px;margin:0}.cards-container{margin-top:180px}}