:root{font-family:system-ui,Avenir,Helvetica,Arial,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;padding:0;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}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}}#root{width:100%;margin:0 auto;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em 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h1{color:var(--text-color);margin-bottom:2rem;font-size:2.5rem}.start-button{background-color:var(--text-color);color:var(--element-background);border:none;padding:1rem 2rem;font-size:1.2rem;border-radius:10px;cursor:pointer;transition:transform .2s}.start-button:hover{transform:scale(1.05)}.game-screen{width:100%;max-width:600px;background-color:var(--element-background);padding:2rem;border-radius:20px;box-shadow:var(--shadow);position:relative;margin:0 auto}.game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.lives{display:flex;gap:1rem}.score{font-size:1.2rem;font-weight:700;color:var(--text-color)}.final-score{margin-bottom:2rem;font-size:1.5rem;color:var(--text-color)}.heart{font-size:1.5rem}.hiragana-container{position:relative;margin:2rem 0;text-align:center}.speaker-button{position:absolute;top:0;left:0;background:none;border:1px solid var(--border-color);font-size:1.5rem;cursor:pointer;padding:.8rem;color:var(--text-color);border-radius:12px;transition:border-color .2s;width:3.5rem;height:3.5rem;display:flex;align-items:center;justify-content:center;outline:none}.speaker-button:hover{border-color:var(--border-color-hover)}.speaker-button:focus{outline:none;border:none;box-shadow:none}.hiragana-character{font-size:8rem;color:var(--text-color);margin:2rem 0}.options-container{display:flex;flex-direction:column;gap:1rem}.option-button{background-color:var(--text-color);color:var(--element-background);border:none;padding:1rem;font-size:1.2rem;border-radius:10px;cursor:pointer;transition:transform .2s;display:flex;flex-direction:column;align-items:center;gap:.3rem;outline:none;-webkit-tap-highlight-color:transparent}.option-button:focus{outline:none;border:none;box-shadow:none;transform:none}.option-button:active{transform:scale(.98)}.option-button:hover{transform:scale(1.02)}.option-button.selected{pointer-events:none;transform:none}.korean-text{font-size:1.3rem;font-weight:700}.romaji-text{font-size:.9rem;opacity:.9}.result{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);font-size:5rem;animation:fadeIn .5s ease-in-out}.result.correct{color:var(--correct-color)}.result.incorrect{color:var(--incorrect-color)}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@media (max-width: 600px){.game-screen,.results-page{padding:1rem}.hiragana-character{font-size:6rem}.option-button{font-size:1rem;padding:.8rem}.result-hiragana{font-size:1.5rem}.result-details div{font-size:.9rem}.play-again-button,.menu-button{padding:.6rem 1rem;font-size:.9rem}}.results-page{width:100%;max-width:600px;background-color:var(--element-background);padding:2rem;border-radius:20px;box-shadow:var(--shadow)}.results-page h1{color:var(--text-color);margin-bottom:1.5rem;text-align:center;font-size:2rem}.results-page h2{color:var(--text-color);margin:1.5rem 0 1rem;font-size:1.5rem}.results-summary{background-color:#ffffffb3;padding:1rem;border-radius:10px;margin-bottom:1.5rem}.results-summary p{margin:.5rem 0;font-size:1.1rem;color:var(--text-color)}.results-container{max-height:300px;overflow-y:auto;margin-bottom:1.5rem}.result-item{display:flex;align-items:center;padding:.8rem;margin-bottom:.5rem;border-radius:10px;background-color:#ffffffb3}.result-item.correct{border-left:4px solid var(--correct-color)}.result-item.incorrect{border-left:4px solid var(--incorrect-color)}.result-hiragana{font-size:2rem;color:var(--text-color);margin-right:1rem;min-width:3rem;text-align:center}.result-details{flex:1}.result-details div{margin:.2rem 0;color:var(--text-color)}.result-indicator{font-size:1.5rem;margin-left:1rem}.results-actions{display:flex;justify-content:space-between;margin-top:1.5rem}.play-again-button,.menu-button{background-color:var(--text-color);color:var(--element-background);border:none;padding:.8rem 1.5rem;font-size:1rem;border-radius:10px;cursor:pointer;transition:transform .2s}.play-again-button:hover,.menu-button:hover{transform:scale(1.05)}