:root{--primary-color: #4a6da7;--primary-hover: #3a5a8f;--secondary-color: #f8c630;--background-color: #f8f9fa;--text-color: #333;--success-color: #28a745;--danger-color: #dc3545;--border-radius: 8px;--box-shadow: 0 4px 6px rgba(0, 0, 0, .1);--font-family: "Comic Sans MS", "Chalkboard SE", "Arial", sans-serif;--points-color: #ff6b6b;--reading-color: #4ecdc4;--dictionary-color: #45b7d1;--xp-color: #96ceb4;--reading-app-color: #ffd93d;--dictionary-app-color: #6c5ce7}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--text-color);background-color:var(--background-color);line-height:1.6;padding:20px;height:100vh;overflow:auto}#root{max-width:1024px;margin:0 auto;height:100%;display:flex;flex-direction:column;overflow:hidden}h1,h2,h3{margin-bottom:1rem;text-align:center}h1{font-size:2.5rem;color:var(--primary-color)}button{background-color:var(--primary-color);color:#fff;border:none;padding:12px 24px;font-size:1.1rem;border-radius:var(--border-radius);cursor:pointer;transition:background-color .3s;font-family:var(--font-family)}button:hover{background-color:var(--primary-hover)}.container{display:flex;flex-direction:column;justify-content:flex-start;align-items:center;width:100%;margin:0 auto;padding:1rem;background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);max-height:100%;height:auto;min-height:100%;overflow-y:auto}.screen-header{display:flex;justify-content:space-between;align-items:center;width:100%}.screen-header-center{display:flex;justify-content:center;align-items:center;flex-grow:1}.form-group{margin-bottom:1.5rem;width:100%}label{display:block;margin-bottom:.5rem;font-weight:700}input,select{width:100%;padding:12px;font-size:1.1rem;border-radius:var(--border-radius);border:1px solid #ddd;font-family:var (--font-family)}.option-button{display:block;width:100%;text-align:left;margin-bottom:.8rem;padding:12px 15px;border-radius:var(--border-radius);color:var(--text-color);background-color:#fff;border:2px solid var(--secondary-color);font-size:1.1rem;cursor:pointer;transition:all .3s}.option-button:hover{background-color:var(--secondary-color);color:var(--text-color)}.option-button.correct{background-color:var(--success-color);color:#fff;border-color:var (--success-color)}.option-button.incorrect{background-color:var(--danger-color);color:#fff;border-color:var(--danger-color)}.button-container{display:flex;justify-content:center;gap:1rem;margin-top:1.5rem;width:100%}.spinner{width:50px;height:50px;border:5px solid rgba(74,109,167,.3);border-radius:50%;border-top-color:var(--primary-color);animation:spin 1s linear infinite;margin:20px auto}@keyframes spin{to{transform:rotate(360deg)}}.progress-container{width:100%;background-color:#e9ecef;border-radius:var(--border-radius);margin:1rem 0;height:20px;position:relative}.progress-bar{background-color:var(--success-color);height:100%;border-radius:var(--border-radius);transition:width .3s ease}.story-list{flex:1;overflow-y:auto;max-height:100%;border-right:1px solid #ddd;padding:1rem}.story-content{flex:2;padding:1rem;overflow-y:auto;max-height:100%}.story-container{width:100%;font-size:1.1rem;line-height:1.8;white-space:pre-wrap;overflow:auto;flex:1}.story-title{font-size:2rem;margin-bottom:1.5rem;text-align:center;color:var(--primary-color)}.question{font-size:1.5rem;margin-bottom:1.5rem;color:var(--primary-color)}.explanation{background-color:#e9f5ff;padding:15px;border-radius:var(--border-radius);margin-top:1rem;border-left:5px solid var(--primary-color);max-height:200px;overflow-y:auto}.api-response{background-color:#f8f9fa;padding:10px;border-radius:var(--border-radius);border:1px solid #ddd;width:100%;height:250px;overflow-y:auto;margin-top:1rem;font-family:monospace;font-size:.9rem}.api-response pre{white-space:pre-wrap}.topic-buttons{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-bottom:1.5rem}.topic-button{background-color:#fff;color:var(--primary-color);border:2px solid var(--primary-color);flex:0 0 calc(50% - .5rem)}.topic-button:hover,.topic-button.selected{background-color:var(--primary-color);color:#fff}.custom-topic{width:100%;margin-top:1rem}.progress-info{display:flex;justify-content:space-around;margin-bottom:2rem;width:100%;gap:10px}.progress-info div{padding:15px 20px;border-radius:var(--border-radius);text-align:center;flex:1;margin:0;transition:transform .2s;box-shadow:0 4px 6px #0000001a}.progress-info div:hover{transform:translateY(-2px)}.progress-info .points-box{background-color:var(--points-color);color:#fff}.progress-info .reading-box{background-color:var(--reading-color);color:#fff}.progress-info .dictionary-box{background-color:var(--dictionary-color);color:#fff}.progress-info .xp-box{background-color:var(--xp-color);color:#fff}.progress-info .streak-box{background-color:#ff9a00;color:#fff}.progress-info-small{display:flex;justify-content:space-between;margin-bottom:1rem;width:100%;background-color:var(--primary-color);color:var(--background-color)}.progress-info-small div{padding:10px 15px;border-radius:var(--border-radius);text-align:left;flex:1;margin:0 5px}.progress-info-small div:last-child{text-align:right}.progress-info-vertical{margin:1rem auto;padding:1rem;max-width:300px;background-color:#ecf0f1cc;border-radius:12px;box-shadow:0 4px 8px #0000001a;display:flex;flex-direction:column;gap:.5rem}.progress-info-vertical .stat-item{display:flex;justify-content:space-between;align-items:center}.progress-info-vertical .stat-label{font-weight:700;color:#34495e}.progress-info-vertical .stat-value{font-weight:400}.small-box p{margin:0}.error-message{color:var(--danger-color);margin-top:.5rem;font-size:.9rem}.markdown-content{padding:10px;max-height:100%;line-height:1.6;overflow-wrap:break-word}.markdown-content h1,.markdown-content h2,.markdown-content h3{margin-top:1em;margin-bottom:.5em;color:#2c3e50}.markdown-content p{margin-bottom:1em}.markdown-content ul,.markdown-content ol{margin-left:2em;margin-bottom:1em}.markdown-content blockquote{border-left:4px solid #ccc;padding-left:1em;margin-left:0;color:#555}.markdown-content code{background-color:#f5f5f5;padding:2px 4px;border-radius:3px;font-family:monospace}.markdown-content pre{background-color:#f5f5f5;padding:1em;border-radius:5px;overflow-x:auto}.markdown-content a{color:#3498db;text-decoration:none}.markdown-content a:hover{text-decoration:underline}.markdown-content img{max-width:100%;height:auto}.congratsOverlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0000004d;z-index:1100;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}.congratsImage{max-width:80vw;max-height:40vh;width:auto;height:auto;margin-bottom:2rem;border-radius:1rem;box-shadow:0 4px 24px #0003;object-fit:contain;background:#ffffff1a;pointer-events:auto}.congratsMessage{color:#fff;font-size:2rem;font-weight:700;text-shadow:0 2px 8px #000;background:#0006;padding:1rem 2rem;border-radius:1rem;margin-top:0;max-width:90vw;text-align:center;pointer-events:auto}.daily-tasks-complete{width:100%;background:linear-gradient(135deg,#4caf50,#45a049);color:#fff;padding:1rem 2rem;border-radius:1rem;box-shadow:0 4px 16px #0003;text-align:center;font-weight:700;font-size:1.1rem;margin-bottom:1.5rem;animation:slideInFromTop .5s ease-out}.daily-tasks-complete p{margin:0}@keyframes slideInFromTop{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}button.update-button{font-size:.8rem;padding:4px 10px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer}.version-info{font-size:.7rem;color:#888;cursor:pointer;opacity:.7}.word-card{width:100%;max-width:800px;margin:0 auto;padding:1.5rem;box-shadow:0 8px 20px #00000026;border-radius:12px;background:linear-gradient(145deg,#fff,#f5f7fa);position:relative}.word-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.word-title{display:flex;align-items:baseline;gap:.75rem}.word-title h2{margin-top:0;font-size:2.2rem;font-weight:700;color:#2c3e50;font-family:Georgia,serif;margin-bottom:0}.word-subtitle{font-style:italic;color:#7f8c8d;font-size:1.1rem}.speak-button{background:#3498db;color:#fff;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;flex-shrink:0}.speak-button.speaking{background:#bdc3c7;cursor:default}.word-details{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1rem}.word-section{flex:1 1 30%;min-width:250px;background:#ecf0f1b3;padding:.75rem;border-radius:8px}.word-section h3{margin-top:0;margin-bottom:.5rem;font-size:1.5rem;text-align:left}.word-section p{font-size:1rem;line-height:1.4;margin-bottom:0}.synonym{background:#e74c3c1a;padding:.25rem .5rem;border-radius:20px;font-size:.9rem;color:#c0392b}.progress-info{margin:1rem 0;text-align:center;font-weight:700;color:#34495e}.button-container{display:flex;justify-content:center;gap:1.5rem;margin-top:1rem}.nav-button{padding:.75rem 1.5rem;background-color:#34495e;color:#fff;border:none;border-radius:6px;font-size:1rem;cursor:pointer;transition:all .3s ease}.nav-button.disabled{background-color:#bdc3c7;cursor:default}.nav-button.next-button{background-color:#3498db}.nav-button.next-button:hover{background-color:#2980b9}.nav-button.next-button:disabled{background-color:#bdc3c7;cursor:default}.nav-button.next-button:last-child{background-color:#27ae60}.nav-button.next-button:last-child:hover{background-color:#1e8449}.story-item{cursor:pointer;padding:.8rem;border-bottom:1px solid #ddd;border-radius:var(--border-radius);margin-bottom:.5rem;transition:all .2s ease}.story-item:hover{background-color:var(--background-color);transform:translate(4px)}.story-item.selected{background-color:var(--primary-color);color:#fff;transform:translate(4px)}.story-item.selected:hover{background-color:var(--primary-hover)}.story-item.selected{background-color:var(--primary-color);color:#fff}.app-button{width:100%;max-width:300px;padding:1rem;font-size:1.2rem;margin:.5rem 0;transition:transform .2s,box-shadow .2s}.app-button:hover{transform:translateY(-2px);box-shadow:0 6px 12px #00000026}.reading-app-button{background-color:var(--reading-app-color);color:var(--text-color)}.reading-app-button:hover{background-color:#ffe169}.dictionary-app-button{background-color:var(--dictionary-app-color);color:#fff}.dictionary-app-button:hover{background-color:#7b68ee}.xp-animation{position:fixed;bottom:50%;left:50%;transform:translate(-50%);font-size:1.5rem;font-weight:700;color:#fff;background-color:#000000b3;padding:.5rem 1rem;border-radius:8px;opacity:0;transition:transform 3s ease-out}.xp-animation.animate{transform:translate(-50%,-100vh);opacity:1}.user-stats{margin:2rem auto;padding:1rem;max-width:300px;background-color:#ecf0f1cc;border-radius:12px;box-shadow:0 4px 8px #0000001a;display:flex;flex-direction:column;gap:.5rem}.story-content-container{position:relative}.story-image{float:right;margin:0 0 20px 20px;max-width:450px;width:100%}.story-image img{width:100%;height:auto;border-radius:var(--border-radius);box-shadow:var(--box-shadow)}.selection-dropdown{background-color:#fff;border:1px solid #ccc;border-radius:4px;box-shadow:0 2px 5px #0003;z-index:1000;padding:5px}.selection-dropdown button{background-color:#4caf50;color:#fff;border:none;padding:5px 10px;border-radius:4px;cursor:pointer;font-size:14px}.selection-dropdown button:hover{background-color:#45a049}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1100}.modal-content{background-color:#fff;border-radius:8px;width:90%;max-width:500px;max-height:80vh;overflow:hidden;display:flex;flex-direction:column}.explanation-modal{box-shadow:0 4px 20px #0003}.modal-header{padding:15px;background-color:#f8f8f8;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.modal-header h3{margin:0;font-size:18px;color:#333}.close-button{background:none;border:none;font-size:24px;cursor:pointer;color:#666}.modal-body{padding:20px;overflow-y:auto;flex:1}.modal-footer{padding:15px;border-top:1px solid #eee;display:flex;justify-content:flex-end}.modal-footer button{background-color:#4caf50;color:#fff;border:none;padding:8px 16px;border-radius:4px;cursor:pointer}.modal-footer button:hover{background-color:#45a049}.loading-indicator{text-align:center;padding:20px;font-style:italic;color:#666}.explanation-text{line-height:1.6;color:#333}.markdown-content{position:relative;-webkit-user-select:text;user-select:text}.highlighted-sentence{background-color:#ff0}