: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}html,body,#root{height:100%}#root{display:flex;align-items:center;justify-content:center;min-height:100%}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f0fbff;color:#16324f;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}#root>div{width:100%;max-width:840px;padding:40px 24px;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;gap:10px}h1{font-size:1.9rem;margin:0 0 8px;font-weight:600;color:#0f2133;text-align:center}h1:after{content:"";display:block;width:96px;height:6px;margin:12px auto 0;border-radius:999px;background:#6b63ff}p{margin:4px 0;font-size:1rem;color:#475569;text-align:center}.card{width:640px;max-width:calc(100% - 48px);height:360px;background:#fff;color:#0f2133;display:flex;align-items:center;justify-content:center;font-size:1.15rem;font-weight:600;border-radius:12px;border:1px solid rgba(100,100,160,.06);box-shadow:0 8px 20px #14243a0f;cursor:pointer;margin:24px auto;transition:transform .18s ease,box-shadow .18s ease;padding:28px 20px;text-align:center;-webkit-user-select:none;user-select:none;perspective:800px}.card-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .45s ease-in-out}.card.is-flipped .card-inner{transform:rotateY(180deg)}.card-face{position:absolute;inset:0;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;padding:20px;box-sizing:border-box;border-radius:12px}.card-back{transform:rotateY(180deg);background:#fbfdff}.card:hover{transform:translateY(-6px);box-shadow:0 14px 30px #14243a14}.card:active{transform:translateY(-2px) scale(.998)}.card .content{max-width:92%;line-height:1.5;font-size:1.25rem}.guess-section{display:flex;gap:12px;margin-bottom:20px;align-items:center;width:100%;max-width:500px;justify-content:center;border:none}.guess-input{flex:1;padding:12px 16px;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;transition:border-color .2s ease;outline:none;background:#f0fbff;color:#000}.guess-input:focus{border-color:#6b63ff;box-shadow:0 0 0 3px #6b63ff1a}.submit-btn{padding:12px 20px;background:#6b63ff;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.submit-btn:hover{background:#5a52e6;transform:translateY(-2px)}.feedback{margin-bottom:16px;padding:12px 20px;border-radius:8px;font-weight:600;font-size:1.1rem;text-align:center}.feedback.correct{background-color:#d1fae5;color:#065f46;border:2px solid #10b981}.feedback.incorrect{background-color:#fee2e2;color:#991b1b;border:2px solid #ef4444}.card.correct{border-color:#10b981;box-shadow:0 8px 20px #10b98126}.card.incorrect{border-color:#ef4444;box-shadow:0 8px 20px #ef444426}.controls{width:100%;display:flex;justify-content:space-between;align-items:center;margin-top:12px;max-width:500px}.card-counter{font-size:1rem;font-weight:600;color:#475569;background:#f1f5f9;padding:8px 16px;border-radius:20px}button{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border:none;border-radius:10px;background:#6b63ff;color:#fff;font-size:.98rem;font-weight:700;cursor:pointer;box-shadow:0 6px 18px #14243a0f;transition:transform .12s ease}button:hover{transform:translateY(-3px);filter:brightness(1.02);box-shadow:0 10px 24px #14243a14}button:active{transform:translateY(-1px)}button:focus{outline:2px solid rgba(107,99,255,.14);outline-offset:4px}button:disabled{background:#94a3b8;cursor:not-allowed;transform:none;box-shadow:0 2px 4px #14243a0f}button:disabled:hover{transform:none;filter:none}.nav-btn{min-width:100px}.stats{display:flex;gap:20px;margin-bottom:15px;font-size:.9rem;font-weight:600}.streak{background:#e2e8f0;padding:6px 12px;border-radius:15px;color:#475569}.remaining{background:#ddd6fe;padding:6px 12px;border-radius:15px;color:#5b21b6}.master-btn{background:#10b981;margin-top:10px;font-size:.9rem;padding:8px 16px}.master-btn:hover{background:#059669}.extra-controls{margin-top:15px}.shuffle-btn{background:#f59e0b;font-size:.9rem;padding:8px 16px}.shuffle-btn:hover{background:#d97706}@media (max-width:760px){#root>div{padding:20px 14px}h1{font-size:1.4rem}.card{height:260px;font-size:1rem;padding:14px}.card .content{font-size:1rem}.guess-section{flex-direction:column;gap:8px;width:100%}.guess-input{width:100%;box-sizing:border-box}.submit-btn{width:100%}.controls{flex-direction:column;gap:12px;padding:0 8px}.nav-btn{width:100%;justify-content:center}.card-counter{order:-1}}