.tool-container{display:flex;flex-direction:column;gap:20px;max-width:1000px;margin:0 auto;padding:20px}.file-upload-section{display:flex;flex-direction:column;gap:10px}.upload-title{font-size:1.2rem;font-weight:500;margin-bottom:10px}.file-upload-container{border:2px dashed var(--border-color);border-radius:8px;padding:20px;text-align:center;background-color:var(--background-secondary);transition:all .3s ease}.file-upload-container:hover,.file-upload-container.drag-over{border-color:var(--primary-color);background-color:var(--hover-background)}.drop-area{display:flex;flex-direction:column;align-items:center;gap:10px;padding:20px;cursor:pointer}.file-icon{font-size:48px;color:var(--text-muted)}.upload-instruction{font-size:1rem;color:var(--text-muted);margin-bottom:10px}.supported-formats{font-size:.8rem;color:var(--text-muted)}.file-input{display:none}.browse-button{display:inline-block;padding:10px 20px;background-color:var(--primary-color);color:#fff;border-radius:4px;cursor:pointer;font-weight:500;transition:background-color .3s ease}.browse-button:hover{background-color:var(--primary-color-dark)}.file-name-display{margin-top:15px;font-weight:500;word-break:break-all}.processing-indicator{display:none;flex-direction:column;align-items:center;gap:15px;padding:20px;background-color:var(--background-secondary);border-radius:8px}.spinner{width:40px;height:40px;border:4px solid rgba(0,0,0,.1);border-left-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.processing-text{font-weight:500}.result-container{display:none;padding:20px;border-radius:8px;background-color:var(--background-secondary)}.result-title{font-size:1.2rem;font-weight:500;margin-bottom:15px}.pdf-preview-container{width:100%;margin-bottom:20px;border-radius:4px;overflow:hidden}.pdf-info{margin-bottom:10px;font-style:italic;color:var(--text-muted)}.pdf-comparison{display:flex;gap:20px;margin-top:20px}@media (max-width: 768px){.pdf-comparison{flex-direction:column;gap:30px}}.pdf-column{flex:1;min-width:0;border:1px solid var(--border-color);border-radius:4px}.pdf-column h4{background-color:var(--background-tertiary);padding:10px;font-size:.9rem;color:var(--text-muted);text-align:center;margin:0;border-bottom:1px solid var(--border-color)}.pdf-preview{width:100%;height:500px;border:none}.download-section{display:flex;flex-direction:column;gap:10px}.download-info{font-size:.9rem;color:var(--text-secondary);margin-bottom:10px}.download-button{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;font-weight:500;cursor:pointer;transition:background-color .3s ease;align-self:flex-start}.download-button:hover{background-color:var(--primary-color-dark)}.download-icon{font-size:18px}.error-display{display:none;padding:15px;margin:10px 0;background-color:var(--error-background);color:var(--error-text);border-left:4px solid var(--error-border);border-radius:4px}@media (max-width: 768px){.tool-container{padding:15px}.pdf-preview{height:400px}}@media (max-width: 480px){.file-upload-container,.drop-area{padding:15px}.pdf-preview{height:300px}.download-button{width:100%;justify-content:center}}@media (prefers-color-scheme: dark){.spinner{border:4px solid rgba(255,255,255,.1);border-left-color:var(--primary-color)}}.tool-header{display:flex;align-items:center;gap:10px;margin-bottom:20px}.tool-page-icon{width:36px;height:36px;flex-shrink:0}.tool-description{font-size:1.1rem;line-height:1.6;margin-bottom:25px;color:var(--text-secondary)}.tool-help-section{background-color:var(--background-secondary);padding:20px;border-radius:8px;margin-bottom:30px}.tool-help-section h2{font-size:1.2rem;margin-top:0;margin-bottom:15px}.tool-help-section ol{padding-left:20px}.tool-help-section li{margin-bottom:8px}.tool-footer{margin-top:40px;padding-top:20px;border-top:1px solid var(--border-color)}.tool-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:15px}.tag-label{font-weight:500;color:var(--text-secondary)}.tool-tag{display:inline-block;padding:5px 10px;background-color:var(--background-tertiary);color:var(--text-primary);border-radius:4px;text-decoration:none;font-size:.9rem;transition:background-color .2s}.tool-tag:hover{background-color:var(--hover-background)}.tool-update-info{font-size:.8rem;color:var(--text-muted);margin:5px 0 0}.breadcrumbs{margin-bottom:20px}.breadcrumbs ol{display:flex;list-style:none;padding:0;margin:0;flex-wrap:wrap}.breadcrumbs li{display:flex;align-items:center}.breadcrumbs li:not(:last-child):after{content:"/";margin:0 8px;color:var(--text-muted)}.breadcrumbs a{color:var(--text-secondary);text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs span[aria-current=page]{color:var(--text-primary);font-weight:500}