functions.php

<?php
/**
 * Functions and definitions
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package FSE
 * @since 1.0.0
 */

/**
 * Enqueue the style.css file.
 *
 * @since 1.0.0
 */
add_action(
	'wp_enqueue_scripts',
	function () {
		wp_enqueue_style(
			'ankur-style',
			get_template_directory_uri() . '/assets/css/theme.css',
			array(),
			filemtime( get_template_directory() . '/assets/css/theme.css' )
		);
	}
);

/**
 * Add block styles support.
 *
 * @since 1.0.0
 */
add_action(
	'after_setup_theme',
	function () {
		add_theme_support( 'wp-block-styles' );
	}
);

/**
 * Additional editor styles.
 * Using `add_editor_style` doesn't allow the styles to be inherited by child themes.
 *
 * @since 1.0.0
 */
add_action(
	'enqueue_block_editor_assets',
	function () {
		wp_enqueue_style(
			'ankur-editor-style',
			get_template_directory_uri() . '/assets/css/editor.css',
			array(),
			filemtime( get_template_directory() . '/assets/css/editor.css' )
		);
	}
);

// Add block styles.
require get_template_directory() . '/inc/block-styles.php';

// Add block patterns.
require get_template_directory() . '/inc/block-patterns.php';