: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;min-width:320px;min-height:100vh;display:block}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{width:100%}#root{max-width:100%;width:100%;margin:0;padding:0;text-align:left}.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}.page,.page.wide{max-width:100%;width:100%;padding:1rem 2rem;box-sizing:border-box}.page-spread{display:flex;gap:16px;align-items:flex-start;justify-content:center}.single-page{display:flex;justify-content:center}.buttons{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:1.5rem}.btn{display:inline-block;padding:.75rem 1.25rem;border-radius:10px;background:#1a1a1a;color:inherit;border:1px solid transparent}.btn:hover{border-color:#646cff}.back{display:inline-block;margin-top:2rem;color:#888}.back:hover{color:#646cff}.pdf-container{margin-top:1rem;height:calc(100vh - 120px)}.pdf-container object{width:100%;height:100%}.embed-container{margin-top:1rem;height:calc(100vh - 120px);border:1px solid #333;border-radius:8px;overflow:hidden}.embed-container iframe{width:100%;height:100%;border:0;background:#fff}.pdf-viewer{display:flex;flex-direction:column;height:calc(100vh - 100px)}.pdf-viewer .toolbar{display:flex;align-items:center;gap:.5rem;background:#1e1e1e;padding:.5rem 1rem;border-bottom:1px solid #333;position:sticky;top:0;z-index:5}.pdf-viewer .toolbar .title{font-weight:600}.pdf-viewer .toolbar .spacer{flex:1}.pdf-viewer .toolbar .pager{display:flex;align-items:center;gap:.25rem}.pdf-viewer .toolbar input[type=number]{width:70px;background:#121212;border:1px solid #333;color:inherit;padding:.25rem .4rem;border-radius:4px}.pdf-viewer .toolbar input[type=number]:focus{outline:1px solid #646cff}.pdf-viewer .toolbar .btn{background:#121212;padding:.4rem .75rem;border-radius:6px;border:1px solid #333}.pdf-viewer .toolbar .btn:hover:not(:disabled){border-color:#646cff}.pdf-viewer .toolbar .btn:disabled{opacity:.4;cursor:not-allowed}.pdf-viewer .canvas{flex:1;overflow:auto;display:flex;justify-content:center;align-items:flex-start;padding:1.5rem;box-sizing:border-box;background:linear-gradient(90deg,#222,#262626,#222)}.react-pdf__Page{box-shadow:0 4px 18px #0006;background:#fff;border-radius:4px;overflow:hidden}.react-pdf__Page canvas{max-width:100%;height:auto!important}.loading{padding:2rem;text-align:center}.chat-container{display:flex;flex-direction:column;height:calc(100vh - 160px);border:1px solid #333;border-radius:10px;background:#181818;overflow:hidden}.messages{flex:1;padding:1rem;overflow-y:auto;display:flex;flex-direction:column;gap:.75rem}.message.user{align-self:flex-end}.message.assistant{align-self:flex-start}.bubble{max-width:70ch;padding:.6rem .9rem;border-radius:14px;font-size:.95rem;line-height:1.4;background:#242424;border:1px solid #333;white-space:pre-wrap}.message.user .bubble{background:#2e2e2e;border-color:#444}.input-row{display:flex;gap:.75rem;padding:.75rem .9rem;background:#202020;border-top:1px solid #333}.input-row input[type=text]{flex:1;background:#111;border:1px solid #333;color:inherit;padding:.6rem .75rem;border-radius:8px;font-size:.95rem}.input-row input[type=text]:focus{outline:2px solid #646cff}.input-row button{background:#1a1a1a;border:1px solid #444;padding:.6rem 1rem;border-radius:8px}.input-row button:hover:not(:disabled){border-color:#646cff}.input-row button:disabled{opacity:.5;cursor:not-allowed}.dots{display:inline-flex;gap:6px}.dots span{width:8px;height:8px;border-radius:50%;background:#646cff;opacity:.4;animation:pulse 1s infinite ease-in-out}.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,to{transform:scale(.6);opacity:.3}50%{transform:scale(1);opacity:.9}}@media(max-width:700px){.bubble{max-width:90%}.chat-container{height:calc(100vh - 200px)}}.predefined-questions{display:flex;flex-wrap:wrap;gap:8px;margin:0 16px 8px;justify-content:center}.predefined-questions button{background-color:#2a2a2a;color:#e0e0e0;border:1px solid #444;border-radius:16px;padding:8px 12px;font-size:.9em;cursor:pointer;transition:background-color .2s,border-color .2s}.predefined-questions button:hover:not(:disabled){background-color:#3a3a3a;border-color:#646cff}.predefined-questions button:disabled{opacity:.5;cursor:not-allowed}.aufgabenheft-container{width:100%}.aufgaben-table{width:100%;border-collapse:collapse;margin-top:1rem;font-size:.9em}.aufgaben-table th,.aufgaben-table td{border:1px solid #444;padding:.5rem .75rem;text-align:left;vertical-align:top}.aufgaben-table th{background-color:#2a2a2a}.aufgaben-table td{background-color:#202020}.aufgaben-table tr:nth-child(2n) td{background-color:#242424}.aufgaben-table textarea{width:100%;min-height:80px;background-color:#1a1a1a;border:1px solid #444;color:#e0e0e0;padding:.5rem;border-radius:4px;resize:vertical;box-sizing:border-box}.wortschatz-table,.textkenntnis-table,.steckbrief-table{width:100%;border-collapse:collapse;margin-top:1rem;font-size:.95em}.wortschatz-table th,.wortschatz-table td,.textkenntnis-table th,.textkenntnis-table td,.steckbrief-table th,.steckbrief-table td{border:1px solid #444;padding:.5rem .75rem;text-align:left;vertical-align:top;background-color:#202020;color:#e6e6e6}.wortschatz-table th,.textkenntnis-table th,.steckbrief-table th{background-color:#2a2a2a;font-weight:600}.wortschatz-table tr:nth-child(2n) td,.textkenntnis-table tr:nth-child(2n) td,.steckbrief-table tr:nth-child(2n) td{background-color:#242424}.textkenntnis-table td:first-child,.textkenntnis-table th:first-child{width:3.2rem;text-align:center}.wortschatz-table td:first-child,.wortschatz-table th:first-child{width:5rem}.steckbrief-table td:first-child,.steckbrief-table th:first-child{width:28%}.wortschatz-table textarea,.textkenntnis-table textarea,.steckbrief-table textarea{width:100%;min-height:3.2rem;background-color:#1a1a1a;border:1px solid #444;color:#e0e0e0;padding:.4rem;border-radius:4px;resize:vertical;box-sizing:border-box}.aufgabenheft-container>table,.aufgabenheft-container .wortschatz-table,.aufgabenheft-container .textkenntnis-table,.aufgabenheft-container .steckbrief-table{box-shadow:0 6px 18px #00000073;border-radius:6px;overflow:hidden}@media(max-width:800px){.textkenntnis-table td:first-child,.textkenntnis-table th:first-child{width:2.6rem}.wortschatz-table td:first-child,.wortschatz-table th:first-child{width:4rem}.steckbrief-table td:first-child,.steckbrief-table th:first-child{width:36%}}