feat(template): menambahkan single.php untuk tampilan baca artikel penuh

single.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * Template untuk menampilkan satu artikel/postingan penuh.
+ */
+get_header(); 
+?>
+
+<main id="primary" class="site-main" style="padding: 60px 20px; max-width: 900px; margin: 0 auto; min-height: 70vh;">
+    <?php
+    while ( have_posts() ) :
+        the_post();
+        ?>
+        <article id="post-<?php the_ID(); ?>" <?php post_class( 'card-style' ); ?> style="padding: 40px;">
+            
+            <header class="entry-header text-center" style="margin-bottom: 30px;">
+                <h1 class="entry-title" style="color: var(--heading-color); margin-bottom: 15px; font-weight: 800; font-size: 32px;">
+                    <?php the_title(); ?>
+                </h1>
+                <div class="entry-meta" style="color: #64748b; font-size: 14px;">
+                    <span style="margin-right: 15px;">📅 <?php echo get_the_date(); ?></span>
+                    <span>👤 <?php the_author(); ?></span>
+                </div>
+            </header>
+
+            <?php if ( has_post_thumbnail() ) : ?>
+                <div class="post-thumbnail" style="margin-bottom: 40px; border-radius: var(--radius); overflow: hidden;">
+                    <?php the_post_thumbnail( 'full', array( 'style' => 'width: 100%; height: auto; display: block;' ) ); ?>
+                </div>
+            <?php endif; ?>
+
+            <div class="entry-content" style="line-height: 1.8; color: var(--text-color); font-size: 16px;">
+                <?php
+                the_content();
+
+                // Paginasi jika artikel dipecah menjadi beberapa halaman dengan tag <!--nextpage-->
+                wp_link_pages( array(
+                    'before' => '<div class="page-links" style="margin-top: 30px; font-weight: bold;">' . esc_html__( 'Halaman:', 'edukarsa' ),
+                    'after'  => '</div>',
+                ) );
+                ?>
+            </div>
+
+            <footer class="entry-footer" style="margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; text-align: center;">
+                <a href="<?php echo esc_url( get_permalink( get_option( 'page_for_posts' ) ) ); ?>" class="btn-outline-primary">
+                    &laquo; Kembali ke Daftar Berita
+                </a>
+            </footer>
+
+        </article>
+        <?php
+    endwhile;
+    ?>
+</main>
+
+<?php 
+get_footer(); 
+?>