diff --git a/inc/setup.php b/inc/setup.php
index b713c49..45ea5a0 100644
--- a/inc/setup.php
+++ b/inc/setup.php
@@ -1,41 +1,51 @@
-<?php
-/**
- * File ini menangani dukungan tema (Theme Support) dan antrean aset (CSS/JS).
- */
-
-// 1. PENGATURAN DASAR
-function edukarsa_setup() {
-    add_theme_support( 'title-tag' );
-    add_theme_support( 'post-thumbnails' );
-    
-    // Pastikan tema mendukung excerpt (kutipan) untuk CPT yang baru dibuat
-    add_post_type_support( 'page', 'excerpt' ); 
-
-    register_nav_menus( array(
-        'menu-utama' => __( 'Menu Utama', 'edukarsa' ),
-        'menu-footer' => __( 'Menu Footer', 'edukarsa' ),
-    ) );
-}
-add_action( 'after_setup_theme', 'edukarsa_setup' );
-
-// 2. MENGHUBUNGKAN ASET (CSS & JS FRONTEND)
-function edukarsa_scripts() {
-    // Memaksa path absolut langsung ke folder tema
-    wp_enqueue_style( 
-        'edukarsa-style', 
-        get_template_directory_uri() . '/style.css', 
-        array(), 
-        time(), 
-        'all' 
-    );
-}
-add_action( 'wp_enqueue_scripts', 'edukarsa_scripts' );
-
-// 3. MEMUAT JAVASCRIPT UNTUK MEDIA UPLOADER (DASHBOARD)
-function edukarsa_admin_scripts( $hook ) {
-    // Memastikan skrip uploader dipanggil di halaman pengaturan Edukarsa[cite: 9]
-    if ( strpos( $hook, 'edukarsa' ) !== false ) {
-        wp_enqueue_media();
-    }
-}
-add_action( 'admin_enqueue_scripts', 'edukarsa_admin_scripts' );
\ No newline at end of file
+<?php
+/**
+ * File ini menangani dukungan tema (Theme Support) dan antrean aset (CSS/JS).
+ */
+
+// 1. PENGATURAN DASAR
+function edukarsa_setup() {
+    add_theme_support( 'title-tag' );
+    add_theme_support( 'post-thumbnails' );
+    add_post_type_support( 'page', 'excerpt' ); 
+
+    register_nav_menus( array(
+        'menu-utama' => __( 'Menu Utama', 'edukarsa' ),
+        'menu-footer' => __( 'Menu Footer', 'edukarsa' ),
+    ) );
+}
+add_action( 'after_setup_theme', 'edukarsa_setup' );
+
+// 2. MENGHUBUNGKAN ASET (CSS & JS FRONTEND)
+function edukarsa_scripts() {
+    wp_enqueue_style( 
+        'edukarsa-style', 
+        get_template_directory_uri() . '/style.css', 
+        array(), 
+        time(), 
+        'all' 
+    );
+}
+add_action( 'wp_enqueue_scripts', 'edukarsa_scripts' );
+
+// 3. MEMUAT JAVASCRIPT UNTUK MEDIA UPLOADER (DASHBOARD)
+function edukarsa_admin_scripts( $hook ) {
+    if ( strpos( $hook, 'edukarsa' ) !== false ) {
+        wp_enqueue_media();
+    }
+}
+add_action( 'admin_enqueue_scripts', 'edukarsa_admin_scripts' );
+
+// 4. REGISTRASI AREA WIDGET SIDEBAR
+function edukarsa_widgets_init() {
+    register_sidebar( array(
+        'name'          => __( 'Sidebar Artikel', 'edukarsa' ),
+        'id'            => 'sidebar-artikel',
+        'description'   => __( 'Area widget untuk halaman single berita/artikel.', 'edukarsa' ),
+        'before_widget' => '<div id="%1$s" class="card-style sidebar-widget %2$s">',
+        'after_widget'  => '</div>',
+        'before_title'  => '<h3 class="sidebar-widget-title">',
+        'after_title'   => '</h3>',
+    ) );
+}
+add_action( 'widgets_init', 'edukarsa_widgets_init' );
diff --git a/sidebar.php b/sidebar.php
new file mode 100644
index 0000000..47e4162
--- /dev/null
+++ b/sidebar.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Template Sidebar EduKarsa
+ */
+?>
+<aside id="secondary" class="widget-area">
+    <?php if ( is_active_sidebar( 'sidebar-artikel' ) ) : ?>
+        <?php dynamic_sidebar( 'sidebar-artikel' ); ?>
+    <?php else : ?>
+        <!-- 1. Mini Banner CTA PPDB (Sinkron dengan Theme Settings) -->
+        <div class="card-style sidebar-widget text-center" style="background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: #fff;">
+            <h3 class="sidebar-widget-title" style="color: #fff; border-color: rgba(255,255,255,0.3);">Pendaftaran Mahasiswa</h3>
+            <p style="font-size: 14px; margin-bottom: 20px; opacity: 0.95;">
+                <?php echo esc_html( get_option('edukarsa_cta_title', 'Siap Bergabung Bersama Kami?') ); ?>
+            </p>
+            <a href="<?php echo esc_url( get_option('edukarsa_cta_btn_url', '#') ); ?>" class="btn-primary btn-light" style="padding: 10px 24px; font-size: 14px; display: inline-block;">
+                <?php echo esc_html( get_option('edukarsa_cta_btn_teks', 'Daftar Sekarang') ); ?>
+            </a>
+        </div>
+
+        <!-- 2. Berita Terkini -->
+        <div class="card-style sidebar-widget">
+            <h3 class="sidebar-widget-title">Berita Terkini</h3>
+            <ul style="list-style: none; padding: 0; margin: 0;">
+                <?php
+                $recent_posts = new WP_Query( array(
+                    'post_type'      => 'post',
+                    'posts_per_page' => 5,
+                    'post__not_in'   => array( get_the_ID() )
+                ) );
+                if ( $recent_posts->have_posts() ) :
+                    while ( $recent_posts->have_posts() ) : $recent_posts->the_post();
+                        ?>
+                        <li style="margin-bottom: 15px; padding-bottom: 12px; border-bottom: 1px solid #f1f5f9;">
+                            <a href="<?php the_permalink(); ?>" style="color: var(--heading-color); font-weight: 700; font-size: 14px; line-height: 1.4; display: block; margin-bottom: 4px;">
+                                <?php the_title(); ?>
+                            </a>
+                            <span style="font-size: 12px; color: #94a3b8;">📅 <?php echo get_the_date(); ?></span>
+                        </li>
+                        <?php
+                    endwhile;
+                    wp_reset_postdata();
+                else :
+                    echo '<li style="font-size: 13px; color: #94a3b8;">Belum ada berita lainnya.</li>';
+                endif;
+                ?>
+            </ul>
+        </div>
+
+        <!-- 3. Kategori Berita -->
+        <div class="card-style sidebar-widget">
+            <h3 class="sidebar-widget-title">Kategori</h3>
+            <ul style="list-style: none; padding: 0; margin: 0; font-size: 14px;">
+                <?php
+                $categories = get_categories();
+                foreach ( $categories as $category ) {
+                    echo '<li style="margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center;">';
+                    echo '<a href="' . esc_url( get_category_link( $category->term_id ) ) . '" style="color: #64748b; font-weight: 500;">' . esc_html( $category->name ) . '</a>';
+                    echo '<span style="background: #f1f5f9; padding: 2px 8px; border-radius: 20px; font-size: 12px; color: var(--primary-color); font-weight: bold;">' . $category->count . '</span>';
+                    echo '</li>';
+                }
+                ?>
+            </ul>
+        </div>
+    <?php endif; ?>
+</aside>
diff --git a/single.php b/single.php
index 2f7cddf..031681b 100644
--- a/single.php
+++ b/single.php
@@ -1,55 +1,66 @@
 <?php
 /**
- * Template untuk menampilkan satu artikel/postingan penuh.
+ * Template untuk menampilkan satu artikel/postingan penuh dengan Sidebar.
  */
 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();
-        ?>
+<main id="primary" class="site-main" style="padding: 50px 0; min-height: 75vh; background-color: #f8fafc;">
+    <div class="container single-layout-wrapper">
+        
+        <!-- Kolom Konten Utama -->
         <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>',
-                ) );
+            <?php
+            while ( have_posts() ) :
+                the_post();
                 ?>
-            </div>
+                <header class="entry-header" style="margin-bottom: 25px;">
+                    <h1 class="entry-title" style="color: var(--heading-color); margin-bottom: 15px; font-weight: 800; font-size: 30px; line-height: 1.3;">
+                        <?php the_title(); ?>
+                    </h1>
+                    <div class="entry-meta" style="color: #64748b; font-size: 14px; display: flex; gap: 20px; flex-wrap: wrap;">
+                        <span>📅 <?php echo get_the_date(); ?></span>
+                        <span>👤 <?php the_author(); ?></span>
+                        <?php if ( has_category() ) : ?>
+                            <span>📁 <?php the_category( ', ' ); ?></span>
+                        <?php endif; ?>
+                    </div>
+                </header>
 
-            <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>
+                <?php if ( has_post_thumbnail() ) : ?>
+                    <div class="post-thumbnail" style="margin-bottom: 30px; 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: 1.85; color: var(--text-color); font-size: 16px;">
+                    <?php
+                    the_content();
+
+                    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; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px;">
+                    <a href="<?php echo esc_url( get_permalink( get_option( 'page_for_posts' ) ) ); ?>" class="btn-outline-primary">
+                        &laquo; Kembali ke Daftar Berita
+                    </a>
+                    <div class="post-tags" style="font-size: 13px;">
+                        <?php the_tags( '<span style="color:#64748b;">Tag: </span>', ', ', '' ); ?>
+                    </div>
+                </footer>
+                <?php
+            endwhile;
+            ?>
         </article>
-        <?php
-    endwhile;
-    ?>
+
+        <!-- Kolom Sidebar -->
+        <?php get_sidebar(); ?>
+
+    </div>
 </main>
 
 <?php 
diff --git a/style.css b/style.css
index 6813074..71f0b1a 100644
--- a/style.css
+++ b/style.css
@@ -166,4 +166,11 @@ a { text-decoration: none; color: var(--primary-color); transition: 0.3s; }
     .keunggulan-grid, .program-grid, .milestone-grid, .stats-grid, .news-grid { grid-template-columns: 1fr; }
     .edukarsa-stats { margin-top: -40px; }
     .img-wrapper-slider { height: 400px; }
-}
\ No newline at end of file
+}
+/* 10. SINGLE & SIDEBAR LAYOUT */
+.single-layout-wrapper { display: grid; grid-template-columns: 2.5fr 1fr; gap: 35px; align-items: start; }
+.sidebar-widget { padding: 25px; margin-bottom: 25px; }
+.sidebar-widget-title { font-size: 18px; font-weight: 800; color: var(--heading-color); margin-bottom: 18px; border-bottom: 2px solid var(--primary-color); padding-bottom: 8px; }
+@media (max-width: 992px) {
+    .single-layout-wrapper { grid-template-columns: 1fr; }
+}