// Custom JS injected by NexT custom_file_path.script
// (kept minimal — reserved for future enhancements)
(function () {
  'use strict';
  // Reading progress is handled by NexT's built-in component.
  // Font-size adjuster for accessibility (A / A- / A+)
  function createFontSizeControl() {
    var postBody = document.querySelector('.post-body');
    if (!postBody) return;
    var bar = document.createElement('div');
    bar.className = 'font-size-control';
    bar.style.cssText = 'position:fixed;right:18px;bottom:90px;z-index:1000;background:rgba(0,0,0,0.65);color:#fff;border-radius:20px;padding:6px 4px;display:flex;flex-direction:column;gap:2px;user-select:none;';
    var labels = [['A-', -1], ['A', 0], ['A+', 1]];
    var current = 1.0;
    labels.forEach(function (item) {
      var btn = document.createElement('button');
      btn.textContent = item[0];
      btn.style.cssText = 'background:none;border:none;color:#fff;font-size:13px;cursor:pointer;padding:3px 8px;opacity:0.85;';
      btn.title = item[0] === 'A-' ? '减小字号' : item[0] === 'A+' ? '增大字号' : '恢复默认';
      btn.addEventListener('click', function () {
        if (item[1] === 0) current = 1.0;
        else current = Math.min(1.4, Math.max(0.8, current + item[1] * 0.1));
        postBody.style.fontSize = current + 'em';
      });
      bar.appendChild(btn);
    });
    document.body.appendChild(bar);
  }
  document.addEventListener('DOMContentLoaded', createFontSizeControl);
})();