:root{font-family:Inter,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:2px solid #646cff;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;color:#fff;cursor:pointer;transition:border-color .25s,background-color .3s}button:hover{border-color:#535bf2;background-color:#2a2a2a}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:100vw;height:100vh;box-sizing:border-box;text-align:center;display:flex;justify-content:center;align-items:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}.app{width:100%;height:100%;text-align:center;background-color:#222;color:#fff;position:relative}@media screen and (min-width: 768px){.app{width:400px;height:800px;margin:0 auto;border-radius:20px;box-shadow:0 0 20px #0000004d}}h1{color:#fc0}.start-screen{display:flex;flex-direction:column;align-items:center;height:100%;background-color:#222;color:#fff}.checkboxes{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:20px}.mastered-hint{font-size:.8em;color:#888;margin:0 30px}.start-button{margin-top:20px;padding:10px 20px;font-size:1.2em;background-color:#61dafb;color:#222;border:none;border-radius:5px;cursor:pointer;transition:background-color .3s;margin-bottom:10px}.start-button:hover{background-color:#21a1f1}.start-button:disabled{background-color:#ccc;color:#888;cursor:not-allowed}.reset-button{margin-top:10px;padding:10px 20px;font-size:1.2em;background-color:#444;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background-color .3s;margin-bottom:10px}.reset-button:hover{background-color:#333}.reset-button.primary{background-color:#61dafb;color:#222}.reset-button.primary:hover{background-color:#21a1f1}.toggle-label{display:flex;align-items:center;font-size:16px;line-height:16px;cursor:pointer;margin:0;padding:0;height:auto;white-space:nowrap}.toggle-label span{display:none}.toggle-label input[type=checkbox]{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:40px;height:20px;background:#ccc;border-radius:20px;position:relative;cursor:pointer;outline:none;margin:0 5px 0 0;transition:background-color .2s ease;vertical-align:middle}.toggle-label input[type=checkbox]:checked{background:#61dafb}.toggle-label input[type=checkbox]:after{content:"";position:absolute;width:18px;height:18px;background:#fff;border-radius:50%;top:1px;left:1px;transition:left .2s ease}.toggle-label input[type=checkbox]:checked:after{left:21px}.home-icon{position:absolute;bottom:10px;left:10px;font-size:2rem;cursor:pointer;z-index:1000}.home-icon:hover{opacity:.8}.button-row{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:10px;margin-top:30px}.button-row button{margin-top:0;margin-bottom:0}.card-container{display:flex;flex-direction:column;height:100%;width:100%;padding:1em;box-sizing:border-box}.card{background-color:#333;color:#fff;border-radius:8px;padding:1em;margin:1em;text-align:center;cursor:pointer;transition:transform .3s;display:flex;flex-direction:column;justify-content:center;height:60%}.card:hover{transform:scale(1.05)}.card-front,.card-back{display:flex;flex-direction:column;align-items:center;justify-content:center}.card-back p{font-size:2em;margin:.5em 0;display:flex;justify-content:center;gap:1em}.card-front p{font-size:4em}.kana-container{display:flex;flex-direction:row;justify-content:space-around;gap:1em;font-size:2em}.buttons{font-size:.8rem;margin:1em;display:flex;justify-content:center;align-items:center;gap:.5em;flex-direction:column;font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif}.buttons-above{margin-top:.5em;display:flex;flex-direction:row;width:100%;gap:.5em}.buttons-below{display:flex;justify-content:center;align-items:center;width:100%}.button{background:none;font-size:1em;padding:.25em .5em;cursor:pointer;transition:color .3s,border-color .3s,opacity .3s;border-radius:8px;text-transform:lowercase;height:30px;display:flex;align-items:center;justify-content:center}.button.disabled{opacity:.5;cursor:not-allowed}.hiragana,.katakana{border:2px solid #ffcc00;color:#fc0;width:100%}.hiragana{border-bottom-right-radius:50%}.katakana{border-bottom-left-radius:50%}.both{border:2px solid #00ff00;color:#0f0;border-radius:100%}.none{border:2px solid #ff0000;color:red;width:100%;border-bottom-left-radius:50%;border-bottom-right-radius:50%}.hiragana:hover,.katakana:hover{color:#e6b800;border-color:#e6b800}.both:hover{color:#00e600;border-color:#00e600}.none:hover{color:#e60000;border-color:#e60000}.deck{display:flex;flex-direction:column;width:100%;height:100%}.deck button{margin:1em;padding:.5em 1em;background-color:#444;color:#fff;border:2px solid #646cff;border-radius:8px;cursor:pointer;transition:background-color .3s,border-color .3s}.deck button:hover{background-color:#555;border-color:#535bf2}.toggle-label{display:flex;align-items:center;margin:1em 0;color:#fff;font-size:1em}.toggle-label input{margin-right:.5em;width:1.2em;height:1.2em;cursor:pointer}.progress-bar,.progress-info{margin:1em 0}.progress-bar{width:100%;background-color:#444;border-radius:5px;overflow:hidden;margin:.5em 0;position:relative;height:10px}.progress-bar-blue{height:10px;background-color:#61dafb;transition:width .3s ease;z-index:0}.progress-bar-green{position:absolute;top:0;left:0;height:10px;background-color:#0f0;transition:width .3s ease;z-index:1}.progress-info{text-align:center;color:#fff;font-size:1em;margin-bottom:.2em}