Saxon

I have the following XML:

<?xml version="1.0" encoding="UTF-8"?>
<zap>
	<row>
		<entry>
			<p CC="1">TOPIC #1 - Unordered Lists</p>
		</entry>
		<entry>
			<p CC="1">asdfasdf</p>
			<ul CC="2">
				<li index="1">UL Level 1 AAA</li>
				<li index="2">UL Level 1. BBB</li>
				<ul CC="3">
					<li index="1">UL Level 2. CCC</li>
					<li index="2">UL Level 2 DDD</li>
					<p CC="4">zxcvzxcv</p>
					<p CC="5">qwerqwer</p>
					<ul CC="6">
						<li index="1">UL Level 3 EEE</li>
						<li index="2">UL Level 3 FFF</li>
					</ul>
					<li index="3">UL Level 2 GGG</li>
				</ul>
				<li index="3">UL Level 1 HHH</li>
			</ul>
		</entry>
	</row>
	<row>
		<entry>
			<p CC="1">TOPIC #2 - Ordered Lists</p>
		</entry>
		<entry>
			<ol CC="1">
				<li index="1" value="1">OL Level 1. AAA</li>
				<li index="2" value="2">OL Level 1. BBB</li>
				<ol CC="2">
					<li index="1" value="1">OL Level 2. CCC</li>
					<li index="2" value="2">OL Level 2. DDD</li>
					<ol CC="3">
						<li index="1" value="1">OL Level 3 EEE</li>
						<ol CC="4">
							<li index="1" value="1">OL Level 4 FFF</li>
							<ol CC="5">
								<li index="1" value="1">OL Level 5 GGG</li>
							</ol>
						</ol>
					</ol>
					<li index="3" value="3">OL Level 2. HHH</li>
				</ol>
				<li index="3" value="3">OL Level 1. III</li>
			</ol>
		</entry>
	</row>
</zap>

The @CC is the value I'm -trying- to achieve using the following XSLT.

NOTE: the code should add a @c attribute to every <p>, <ul> and <ol> which counts the sequence within each <entry>. i.e. the first of these elements should result in @c="1", the next <p>, <ul> or <ul> would be @c="2" etc.

The count should continue down through all nested content within each <entry>. other elements, like <li> should NOT be counted.

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
	xmlns:xs="http://www.w3.org/2001/XMLSchema"
	xmlns:math="http://www.w3.org/2005/xpath-functions/math"
	exclude-result-prefixes="xs math"
	version="3.0">

	<xsl:template match="*">
		<xsl:copy>
			<xsl:apply-templates/>
		</xsl:copy>
	</xsl:template>

	<xsl:template match="entry">
		<xsl:element name="entry">
			<xsl:copy-of select="@* except @written"/>
			<xsl:apply-templates select="node()" mode="count"/>
		</xsl:element>
	</xsl:template>

	<xsl:template match="*" mode="count">
		<xsl:copy-of select="."/>
	</xsl:template>

	<xsl:template match="text()" mode="count">
		<xsl:copy-of select="."/>
	</xsl:template>

	<!-- Mode to count and set the c attribute -->
	<xsl:template match="p | ul | ol" mode="count">
		<xsl:variable name="count" select="count(preceding::p[ancestor::entry[1]] | preceding::ul[ancestor::entry[1]] | preceding::ol[ancestor::entry[1]]) + 1"/>
		<xsl:element name="{name()}">
			<xsl:attribute name="c" select="$count"/>
			<xsl:copy-of select="@* except @written"/>
			<xsl:apply-templates select="node()" mode="count"/>
		</xsl:element>
	</xsl:template>

</xsl:stylesheet>

I have tried many alternatives and they result in worse results. I'm struggling to see why this is so difficult to achieve - although I'm happy to accept that my XSLT skills may be lacking. ... but so are several AI models that I've tried (CoPilot, chatGPT.4o, ...)

File versions of above attached. Any clues, guidance, solutions would be greatly appreciated - this has been driving me nuts for days.