.regex-categories{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}.regex-cat-btn{background:var(--gray-100);border:1px solid var(--gray-300);padding:8px 20px;border-radius:40px;cursor:pointer;transition:var(--transition)}.regex-cat-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:white}.regex-list{display:flex;flex-direction:column;gap:12px;margin-bottom:32px;max-height:500px;overflow-y:auto}.regex-item{background:var(--gray-50);border-radius:var(--border-radius-md);padding:16px;border:1px solid var(--gray-200);transition:var(--transition)}.regex-item:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}.regex-name{font-weight:600;margin-bottom:8px;color:var(--gray-800)}.regex-pattern{font-family:monospace;font-size:0.85rem;color:var(--primary-color);background:white;padding:6px 10px;border-radius:var(--border-radius-sm);margin-bottom:8px;word-break:break-all}.regex-desc{font-size:0.8rem;color:var(--gray-500);margin-bottom:8px}.regex-example{font-size:0.75rem;color:var(--gray-400)}.regex-actions{display:flex;gap:12px;margin-top:8px}.regex-actions button{background:transparent;border:none;color:var(--gray-500);cursor:pointer;font-size:0.8rem;padding:4px 8px;border-radius:var(--border-radius-sm)}.regex-actions button:hover{background:var(--gray-200);color:var(--primary-color)}.test-controls{margin-top:16px}.test-row{margin-bottom:16px}.test-row label{display:block;font-weight:500;margin-bottom:6px;color:var(--gray-700)}.textarea-input-sm{width:100%;min-height:100px;padding:12px;border:1px solid var(--gray-300);border-radius:var(--border-radius-md);resize:vertical}.flag-buttons{display:flex;gap:16px}.flag-buttons label{display:flex;align-items:center;gap:4px;font-weight:normal;cursor:pointer}.test-result{margin-top:16px;padding:12px;background:var(--gray-50);border-radius:var(--border-radius-md);font-family:monospace;font-size:0.85rem;max-height:200px;overflow-y:auto}.match-item{background:white;border-left:3px solid var(--primary-color);padding:8px 12px;margin-bottom:8px;border-radius:var(--border-radius-sm)}