{{/*
  The opening of every page: a full-bleed dark band. On the left, an
  optional note (the eyebrow), the statement, the dek, the actions; on the
  right, the agent log (when `log:` is set), the layer panel (when `fit:`
  is set), or the field — the platform's four layers drawn as bars.
  `bars: false` drops the field. `logImage` sets a photo behind the whole band.
*/}}
{{ $s := . }}
{{ $visual := or $s.log $s.fit (ne $s.bars false) }}
<header class="hero{{ if $s.compact }} hero-compact{{ end }}{{ if $visual }} has-visual{{ end }}{{ if $s.logImage }} has-image{{ end }}">
  {{ with $s.logImage }}<img class="hero-bg" src="{{ . | relURL }}" alt="" fetchpriority="high">{{ end }}
  <div class="wrap hero-grid">
  <div class="hero-copy">
  {{ with $s.eyebrow }}<p class="note" data-reveal><span class="note-live" aria-hidden="true"></span><span class="note-text">{{ . }}</span></p>{{ end }}
  <h1 class="statement" data-reveal style="--d:80ms">{{ $s.title | markdownify }}</h1>
  {{ with $s.subhead }}<p class="dek" data-reveal style="--d:140ms">{{ . | markdownify }}</p>{{ end }}
  {{ if $s.ctas }}<div class="actions" data-reveal style="--d:200ms">{{ partial "sections/ctas.html" $s.ctas }}</div>{{ end }}
  </div>

  {{ with $s.log }}
    {{/*
      An agent's activity log, typed out line by line (see the script below).
      Lines take `tag` + `text`; `think: true` marks a reasoning step (greyed,
      with a pause); `done: true` closes the run. The window keeps a fixed
      height and scrolls as lines arrive. `logCaption` credits the photo.
    */}}
    <figure class="hero-log" data-reveal style="--d:260ms">
      <div class="log-window">
        <div class="log-bar">
          <span class="log-title">{{ $s.logTitle | default "agent · your-company.federated.computer" }}</span>
          <span class="log-live"><span class="note-live" aria-hidden="true"></span>Live</span>
        </div>
        <div class="log-view">
        <ol class="log-lines" aria-label="An AI agent at work on a Federated Core">
          {{ range . }}
          <li class="log-line{{ if .done }} is-done{{ end }}{{ if .think }} is-think{{ end }}">
            <span class="log-tag">{{ .tag | default (cond .done "Done" (cond (.think | default false) "Thinking" "")) }}</span>
            <span class="log-text">{{ .text }}</span>
          </li>
          {{ end }}
        </ol>
        </div>
      </div>
    </figure>
    <script>
      (function () {
        var fig = document.currentScript.previousElementSibling;
        if (!fig || matchMedia('(prefers-reduced-motion: reduce)').matches) return;
        var view = fig.querySelector('.log-view'), list = fig.querySelector('.log-lines');
        var lines = [].slice.call(fig.querySelectorAll('.log-line'));
        var onScreen = true, i = 0;
        function visible() { return onScreen && !document.hidden; }
        fig.classList.add('is-animated');
        lines.forEach(function (li) {
          li.style.setProperty('--n', li.querySelector('.log-text').textContent.trim().length);
        });
        // Pause while the log is off screen or the tab is hidden.
        function schedule(fn, ms) { setTimeout(function () { if (visible()) fn(); else schedule(fn, 400); }, ms); }
        function next() {
          if (i === lines.length) { schedule(reset, 4200); return; }
          var li = lines[i++], n = +li.style.getPropertyValue('--n');
          // Finished lines drop their typing animation, so a repaint can't replay it.
          lines.forEach(function (l) { if (l.classList.contains('is-current')) l.classList.add('is-typed'); l.classList.remove('is-current'); });
          li.classList.add('is-on', 'is-current');
          // Keep the newest line in view, like a terminal: slide the list up.
          var shift = Math.max(0, li.offsetTop + li.offsetHeight + 18 - view.clientHeight);
          list.style.transform = 'translateY(' + -shift + 'px)';
          var pause = li.classList.contains('is-think') ? 1300 : li.classList.contains('is-done') ? 300 : 450;
          schedule(next, n * 16 + pause);
        }
        function reset() {
          fig.classList.add('is-clearing');
          schedule(function () {
            lines.forEach(function (l) { l.classList.remove('is-on', 'is-current', 'is-typed'); });
            list.style.transition = 'none';
            list.style.transform = '';
            void list.offsetHeight;
            list.style.transition = '';
            fig.classList.remove('is-clearing');
            i = 0;
            schedule(next, 500);
          }, 450);
        }
        if ('IntersectionObserver' in window) {
          new IntersectionObserver(function (e) { onScreen = e[0].isIntersecting; }).observe(fig);
        }
        schedule(next, 700);
      })();
    </script>
  {{ else }}
  {{ with $s.fit }}
    <aside class="hero-fit" aria-label="Platform layers this path uses" data-reveal style="--d:260ms">
      <div class="hero-fit-head">
        <p class="hero-fit-title">What this path uses</p>
        <a class="more" href="{{ "/solutions/#compare" | relURL }}">Compare all four<span class="arrow" aria-hidden="true">→</span></a>
      </div>
      {{ partial "fit.html" (dict "fit" .) }}
    </aside>
  {{ else }}
    {{ if ne $s.bars false }}
      <figure class="hero-field" aria-hidden="true" data-reveal style="--d:260ms">
        {{/* Listed in stack order; drawn bottom-up so Core is the foundation. */}}
        <div class="field-stack">
          {{ range $i, $l := hugo.Data.layers }}
            <span class="field-layer" style="--i:{{ $i }}"><i></i><em>{{ printf "%02d" (add $i 1) }} · {{ $l.name }}</em></span>
          {{ end }}
        </div>
      </figure>
    {{ end }}
  {{ end }}
  {{ end }}
  </div>
  {{ with $s.logCaption }}<p class="hero-caption">{{ . }}</p>{{ end }}
</header>