<?php
// Theme support
function my_first_theme_setup() {
    add_theme_support('title-tag'); // Dynamic title tag
    add_theme_support('post-thumbnails'); // Featured images
}
add_action('after_setup_theme', 'my_first_theme_setup');

// Enqueue styles
function my_first_theme_styles() {
    wp_enqueue_style('main-style', get_stylesheet_uri());
}
add_action('wp_enqueue_scripts', 'my_first_theme_styles');
?>