Matrix Decode

<!--
  Matrix Decode - remocn typography primitive for HyperFrames.

  Paste the markup, CSS and script into a composition. Drive the timeline
  integration from a paused GSAP timeline so renders remain deterministic.

  Variables. The script reads each one, falls back to the declared default on
  anything missing or invalid, and writes the result as a custom property the
  CSS consumes (or, for the target text, as the cells themselves). The timeline
  recipe below is untouched by them: it keeps staggering whatever cells are
  present.

    - text (text, default HYPERFRAMES): the word the scramble resolves into.
      One scrambling cell per character, up to 32. Also written to data-final,
      which a decode routine can read.
    - accent (green | blue | violet, default green): colour family of the cells
      and of their glow.
    - size (24 to 160 px, default 64): type size of the cells. The per-cell
      minimum width is a fixed fraction of it, so the row scales as a whole.
    - glow (none | standard | strong, default standard): halo strength behind
      the cells, from no shadow at all to a heavy bloom.

  On every default the result is identical to the original: eleven 64px green
  cells with an 18px halo.
-->

<div
  class="hf-remocn-matrix-decode"
  data-final="HYPERFRAMES"
  data-composition-variables='[
    { "id": "text", "type": "string", "role": "content", "label": "Target text", "description": "Word the scramble resolves into. One scrambling cell per character, up to 32.", "default": "HYPERFRAMES" },
    { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Colour family of the cells and their glow.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
    { "id": "size", "type": "number", "role": "style", "label": "Size", "description": "Type size of the cells in pixels. Cell width follows it.", "default": 64, "min": 24, "max": 160, "step": 4, "unit": "px" },
    { "id": "glow", "type": "enum", "role": "style", "label": "Glow", "description": "Strength of the halo behind the cells, from none to a heavy bloom.", "default": "standard", "options": [{ "value": "none", "label": "None" }, { "value": "standard", "label": "Standard" }, { "value": "strong", "label": "Strong" }] }
  ]'
>
  <span>0</span><span>0</span><span>0</span><span>0</span><span>0</span><span>0</span><span>0</span
  ><span>0</span><span>0</span><span>0</span><span>0</span>
</div>

<style>
  .hf-remocn-matrix-decode {
    color: #18181b;
    font-family: Inter, system-ui, sans-serif;
    font-weight: 900;
    letter-spacing: -0.04em;
  }
  .hf-remocn-matrix-decode {
    display: inline-flex;
    gap: 3px;
    font:
      900 64px/1 ui-monospace,
      SFMono-Regular,
      Menlo,
      monospace;
    font-size: var(--hf-matrix-size, 64px);
    color: var(--hf-matrix-color, #16a34a);
    text-shadow: 0 0 var(--hf-matrix-glow-radius, 18px)
      rgba(var(--hf-matrix-glow-rgb, 22, 163, 74), var(--hf-matrix-glow-alpha, 0.28));
  }
  .hf-remocn-matrix-decode span {
    display: inline-block;
    min-width: 0.64em;
    opacity: var(--hf-matrix-opacity, 1);
  }
</style>

<script>
  (function () {
    "use strict";

    var vars =
      window.__hyperframes && window.__hyperframes.getVariables
        ? window.__hyperframes.getVariables()
        : {};

    // Anything missing or invalid returns to its declared default.
    var accents = {
      green: { color: "#16a34a", rgb: "22, 163, 74" },
      blue: { color: "#2563eb", rgb: "37, 99, 235" },
      violet: { color: "#7c3aed", rgb: "124, 58, 237" },
    };
    var glows = {
      none: { radius: "0px", alpha: "0" },
      standard: { radius: "18px", alpha: "0.28" },
      strong: { radius: "34px", alpha: "0.55" },
    };

    function pick(table, value, fallback) {
      return Object.prototype.hasOwnProperty.call(table, value) ? value : fallback;
    }

    var text = typeof vars.text === "string" ? vars.text.trim().slice(0, 32) : "";
    if (!text) {
      text = "HYPERFRAMES";
    }

    var size =
      typeof vars.size === "number" || typeof vars.size === "string" ? Number(vars.size) : NaN;
    size = isFinite(size) && size > 0 ? Math.min(160, Math.max(24, size)) : 64;

    var accent = accents[pick(accents, vars.accent, "green")];
    var glow = glows[pick(glows, vars.glow, "standard")];

    var roots = document.querySelectorAll(".hf-remocn-matrix-decode");
    for (var i = 0; i < roots.length; i += 1) {
      roots[i].style.setProperty("--hf-matrix-size", size + "px");
      roots[i].style.setProperty("--hf-matrix-color", accent.color);
      roots[i].style.setProperty("--hf-matrix-glow-rgb", accent.rgb);
      roots[i].style.setProperty("--hf-matrix-glow-radius", glow.radius);
      roots[i].style.setProperty("--hf-matrix-glow-alpha", glow.alpha);
      roots[i].setAttribute("data-final", text);
      while (roots[i].firstChild) {
        roots[i].removeChild(roots[i].firstChild);
      }
      for (var j = 0; j < text.length; j += 1) {
        var cell = document.createElement("span");
        cell.textContent = text.charAt(j) === " " ? "\u00a0" : "0";
        roots[i].appendChild(cell);
      }
    }
  })();
</script>

<!--
  Timeline integration:
  tl.fromTo('.hf-remocn-matrix-decode span', { opacity: 0, y: 12 }, { opacity: 1, y: 0, duration: 0.18, stagger: 0.035, ease: 'power2.out' }, startTime);
-->