{#- chirp-ui: ASCII Icon component
    Unicode symbols as primary icons — blink, pulse, rotate, etc.

    Usage:
        from "chirpui/ascii_icon.html" import ascii_icon

        ascii_icon("✦")                    # Static
        ascii_icon("✦", animation="blink")
        ascii_icon("◆", animation="pulse", size="lg")
        ascii_icon("◜", animation="rotate") # Spiral cycle (◜◝◞◟)
-#}

{% def ascii_icon(char, animation="none", size="md", cls="") %}
<span class="chirpui-ascii chirpui-ascii--{{ size }}{{ " chirpui-ascii--" ~ animation if animation != "none" else "" }}{{ " " ~ cls if cls else "" }}"
      aria-hidden="true">
    {% if animation == "rotate" %}
    {#- Spiral: cycle ◜ ◝ ◞ ◟ via opacity on 4 spans #}
    <span class="chirpui-ascii__char chirpui-ascii__char--1">◜</span>
    <span class="chirpui-ascii__char chirpui-ascii__char--2">◝</span>
    <span class="chirpui-ascii__char chirpui-ascii__char--3">◞</span>
    <span class="chirpui-ascii__char chirpui-ascii__char--4">◟</span>
    {% else %}
    <span class="chirpui-ascii__char">{{ char }}</span>
    {% end %}
</span>
{% end %}