:root{--primary-color: #007bff;--primary-hover: #0056b3;--background-color: #f4f7f9;--surface-color: #ffffff;--text-color: #333333;--border-color: #dee2e6;--error-color: #dc3545;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font-family);background-color:var(--background-color);color:var(--text-color);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}#root{display:flex;flex-direction:column;flex-grow:1}.App{display:flex;flex-direction:column;height:100vh;max-width:1200px;margin:0 auto;width:100%}.AppHeader{display:flex;justify-content:space-between;align-items:center;padding:1rem;background-color:var(--surface-color);border-bottom:1px solid var(--border-color);flex-shrink:0}.AppHeader h1{font-size:1.25rem;margin:0}.HeaderActions{display:flex;gap:.5rem}.AppMain{flex-grow:1;display:flex;flex-direction:column;overflow:hidden;padding:1rem}.Button{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.2rem;font-size:1rem;font-weight:500;border:1px solid transparent;border-radius:.375rem;cursor:pointer;transition:background-color .2s ease-in-out,color .2s ease-in-out;text-decoration:none;white-space:nowrap;min-height:44px}.ButtonPrimary{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.ButtonPrimary:hover{background-color:var(--primary-hover);border-color:var(--primary-hover)}.Button:disabled{opacity:.6;cursor:not-allowed}.FileDropzone{display:flex;flex-direction:column;justify-content:center;align-items:center;flex-grow:1;border:2px dashed var(--border-color);border-radius:.5rem;padding:2rem;text-align:center;cursor:pointer;transition:border-color .2s,background-color .2s}.FileDropzone:hover{border-color:var(--primary-color);background-color:#f0f8ff}.FileDropzone p{margin-bottom:1rem;font-size:1.1rem;color:#6c757d}.CenteredMessage{display:flex;flex-direction:column;justify-content:center;align-items:center;flex-grow:1;text-align:center}.ErrorMessage{color:var(--error-color);background-color:#f8d7da;border:1px solid #f5c6cb;padding:1rem;border-radius:.375rem}.DocumentViewer{flex-grow:1;background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:.5rem;overflow:auto;padding:1rem}.DocxViewer{max-width:800px;margin:0 auto}.DocxViewer h1,.DocxViewer h2,.DocxViewer h3{margin-top:1.5em;margin-bottom:.5em}.DocxViewer p{margin-bottom:1em}.DocxViewer ul,.DocxViewer ol{margin-left:1.5em;margin-bottom:1em}.XlsxViewer{display:flex;flex-direction:column;height:100%}.SheetTabs{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--border-color);margin-bottom:1rem;flex-shrink:0}.SheetTab{padding:.5rem 1rem;cursor:pointer;border:1px solid transparent;border-bottom:none;margin-bottom:-1px}.SheetTab.active{border-color:var(--border-color);border-bottom-color:var(--surface-color);background-color:var(--surface-color);border-radius:.25rem .25rem 0 0;font-weight:500}.TableContainer{overflow:auto;flex-grow:1}.XlsxTable{width:100%;border-collapse:collapse;font-size:.9rem}.XlsxTable th,.XlsxTable td{border:1px solid var(--border-color);padding:.5rem;text-align:left;white-space:nowrap}.XlsxTable th{background-color:var(--background-color);position:sticky;top:0}.PdfViewer{display:flex;flex-direction:column;height:100%;align-items:center}.PdfControls{display:flex;align-items:center;gap:1rem;padding:.5rem;margin-bottom:1rem;background-color:var(--background-color);border-radius:.375rem;flex-shrink:0;flex-wrap:wrap;justify-content:center}.PdfCanvasContainer{flex-grow:1;overflow:auto;width:100%;text-align:center}.PdfCanvas{max-width:100%;height:auto;border:1px solid var(--border-color);box-shadow:0 4px 8px #0000001a}.UnsupportedFile{padding:2rem;text-align:center}.UnsupportedFile h3{color:var(--error-color);margin-bottom:1rem}@media print{.AppHeader,.PdfControls,.SheetTabs{display:none!important}.AppMain{padding:0}.DocumentViewer{border:none;border-radius:0;overflow:visible;height:auto;width:100%;box-shadow:none}.PdfCanvasContainer{overflow:visible}.PdfCanvas{box-shadow:none;border:none}.TableContainer{overflow:visible}}@media (min-width: 768px){.AppMain{padding:1.5rem}.DocumentViewer{padding:2rem}.AppHeader h1{font-size:1.5rem}}