: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}}:root{--bg-color: #121212;--surface-color: #1e1e1e;--primary-color: #bb86fc;--primary-variant: #3700b3;--secondary-color: #03dac6;--text-color: #e0e0e0;--text-muted: #a0a0a0;--error-color: #cf6679;--success-color: #03dac6}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-color);min-height:100vh}#root{width:100%}.app-container{max-width:800px;margin:0 auto;padding:2rem;display:flex;flex-direction:column;gap:2rem}header h1{text-align:center;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-size:3rem;margin:0}button{background-color:var(--surface-color);border:1px solid var(--primary-color);color:var(--primary-color);padding:.6em 1.2em;font-size:1rem;font-weight:500;border-radius:8px;cursor:pointer;transition:all .25s}button:hover{background-color:var(--primary-color);color:var(--bg-color);transform:translateY(-2px);box-shadow:0 4px 12px #bb86fc4d}button.primary{background-color:var(--primary-color);color:var(--bg-color)}button.primary:hover{background-color:var(--primary-variant);color:#fff}button.back-btn{margin-bottom:1rem;background:transparent;border:none;padding:0;color:var(--text-muted)}button.back-btn:hover{color:var(--primary-color);background:transparent;transform:none;box-shadow:none}.card{background-color:var(--surface-color);padding:2rem;border-radius:16px;box-shadow:0 4px 20px #0006;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.essay-list{display:flex;flex-direction:column;gap:1rem}.essay-btn{width:100%;text-align:left;padding:1.5rem;border:1px solid #333}.mode-selection{margin-top:2rem;padding-top:1rem;border-top:1px solid #333}.mode-selection .actions{display:flex;gap:1rem;margin-top:1rem}.recall-mode .header,.dictation-mode .header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.history{margin-bottom:2rem;display:flex;flex-direction:column;gap:1rem;opacity:.7}.history-item{border-left:2px solid var(--text-muted);padding-left:1rem}.current-card{background-color:var(--surface-color);padding:2rem;border-radius:16px;border:1px solid var(--primary-color)}.prompt-text,.answer-text{font-size:1.25rem;line-height:1.6}.answer-section{margin-top:1.5rem;border-top:1px dashed #333;padding-top:1.5rem}.dictation-container{display:flex;flex-direction:column;gap:1.5rem}.hint-box{background-color:#03dac61a;color:var(--secondary-color);padding:1rem;border-radius:8px;border:1px solid var(--secondary-color)}textarea{width:100%;background-color:#2a2a2a;border:1px solid #444;color:#fff;padding:1rem;border-radius:8px;font-size:1.1rem;resize:vertical;font-family:inherit}textarea:focus{outline:none;border-color:var(--primary-color)}.input-section{display:flex;flex-direction:column;gap:1rem}.diff-view{background-color:#2a2a2a;padding:1.5rem;border-radius:8px;margin-bottom:1.5rem}.diff-row{margin-bottom:1rem}.diff-row p{margin:.5rem 0 0;font-size:1.1rem}.actions{display:flex;gap:1rem;justify-content:flex-end}