dylanmazzei-website/static/assets/site.js

(function () {
  window.__site = true;
  var root = document.documentElement;
  var reduce = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;

  // Theme toggle: remembers the visitor's choice; otherwise follows the system.
  var themeBtn = document.getElementById('theme-btn');
  var current = function () { return root.getAttribute('data-theme') === 'dark' ? 'dark' : 'light'; };
  var paint = function () {
    if (!themeBtn) return;
    var dark = current() === 'dark';
    themeBtn.setAttribute('aria-label', dark ? 'Switch to light mode' : 'Switch to dark mode');
    themeBtn.setAttribute('aria-pressed', String(dark));
  };
  var apply = function (t, save) {
    root.setAttribute('data-theme', t);
    if (save) { try { localStorage.setItem('theme', t); } catch (e) {} }
    paint();
  };
  paint();
  if (themeBtn) themeBtn.addEventListener('click', function () { apply(current() === 'dark' ? 'light' : 'dark', true); });

  // Nav border on scroll
  var nav = document.getElementById('nav');
  var progress = document.getElementById('progress');
  var onScroll = function () {
    nav && nav.classList.toggle('is-scrolled', window.scrollY > 8);
    if (progress) {
      var max = Math.max(1, document.documentElement.scrollHeight - window.innerHeight);
      progress.style.transform = 'scaleX(' + Math.min(1, Math.max(0, window.scrollY / max)) + ')';
    }
  };
  onScroll();
  window.addEventListener('scroll', onScroll, { passive: true });

  // Mobile menu
  var menuBtn = document.getElementById('menu-btn');
  var menu = document.getElementById('mobile-menu');
  if (menuBtn && menu) {
    menuBtn.addEventListener('click', function () {
      var open = menu.hidden;
      menu.hidden = !open;
      menuBtn.setAttribute('aria-expanded', String(open));
      menuBtn.setAttribute('aria-label', open ? 'Close menu' : 'Open menu');
    });
    document.addEventListener('keydown', function (e) {
      if (e.key === 'Escape' && !menu.hidden) { menu.hidden = true; menuBtn.setAttribute('aria-expanded', 'false'); menuBtn.focus(); }
    });
  }

  // Reveal on scroll
  var reveals = document.querySelectorAll('.reveal');
  if ('IntersectionObserver' in window && !reduce) {
    var io = new IntersectionObserver(function (entries) {
      entries.forEach(function (en) {
        if (en.isIntersecting) { en.target.classList.add('is-in'); io.unobserve(en.target); }
      });
    }, { rootMargin: '0px 0px -8% 0px', threshold: 0.05 });
    reveals.forEach(function (el) { io.observe(el); });
  } else {
    reveals.forEach(function (el) { el.classList.add('is-in'); });
  }

  // Count-up numbers: <b data-count="8" data-suffix="+">8+</b>
  var counters = document.querySelectorAll('[data-count]');
  var run = function (el) {
    var end = parseInt(el.getAttribute('data-count'), 10);
    var suffix = el.getAttribute('data-suffix') || '';
    var start = null;
    var dur = 1200;
    var step = function (t) {
      if (!start) start = t;
      var p = Math.min((t - start) / dur, 1);
      var eased = 1 - Math.pow(1 - p, 3);
      el.textContent = Math.round(end * eased) + suffix;
      if (p < 1) requestAnimationFrame(step);
    };
    requestAnimationFrame(step);
  };
  if ('IntersectionObserver' in window && !reduce) {
    var co = new IntersectionObserver(function (entries) {
      entries.forEach(function (en) { if (en.isIntersecting) { run(en.target); co.unobserve(en.target); } });
    }, { threshold: 0.6 });
    counters.forEach(function (el) { co.observe(el); });
  }

  // Tabs (service lines)
  document.querySelectorAll('[data-tabs]').forEach(function (wrap) {
    var btns = wrap.querySelectorAll('[role="tab"]');
    var panels = wrap.querySelectorAll('[role="tabpanel"]');
    var select = function (i, focus) {
      btns.forEach(function (b, j) {
        var on = i === j;
        b.setAttribute('aria-selected', String(on));
        b.tabIndex = on ? 0 : -1;
        panels[j].hidden = !on;
      });
      if (focus) btns[i].focus();
    };
    btns.forEach(function (b, i) {
      b.addEventListener('click', function () { select(i); });
      b.addEventListener('keydown', function (e) {
        var k = e.key;
        if (k === 'ArrowDown' || k === 'ArrowRight') { e.preventDefault(); select((i + 1) % btns.length, true); }
        if (k === 'ArrowUp' || k === 'ArrowLeft') { e.preventDefault(); select((i - 1 + btns.length) % btns.length, true); }
      });
    });
    var hash = location.hash.replace('#', '');
    var start = 0;
    panels.forEach(function (p, j) { if (p.id === hash) start = j; });
    select(start);
  });

  // Copy buttons
  document.querySelectorAll('[data-copy]').forEach(function (b) {
    b.addEventListener('click', function () {
      var text = b.getAttribute('data-copy');
      var label = b.textContent;
      var done = function () { b.textContent = 'Copied'; setTimeout(function () { b.textContent = label; }, 1600); };
      try { navigator.clipboard.writeText(text).then(done, function () {}); } catch (e) {}
    });
  });

  // Inquiry form: opens the visitor's email client with the message prefilled.
  var form = document.getElementById('inquiry');
  if (form) {
    form.addEventListener('submit', function (e) {
      e.preventDefault();
      if (!form.reportValidity()) return;
      var d = new FormData(form);
      var body = [
        'Name: ' + d.get('name'),
        'Email: ' + d.get('email'),
        d.get('company') ? 'Company: ' + d.get('company') : '',
        d.get('topic') ? 'Topic: ' + d.get('topic') : '',
        '',
        d.get('message')
      ].filter(function (l, i) { return l !== '' || i === 4; }).join('\n');
      var subject = 'Inquiry from ' + d.get('name') + (d.get('topic') ? ' — ' + d.get('topic') : '');
      window.location.href = 'mailto:' + form.getAttribute('data-to') + '?subject=' + encodeURIComponent(subject) + '&body=' + encodeURIComponent(body);
      var status = document.getElementById('form-status');
      if (status) status.textContent = 'Your email app should open with the message ready to send.';
    });
  }

  root.classList.add('ready');
})();