diff --git a/includes/class-psa-post-type.php b/includes/class-psa-post-type.php
index e76a528..04d7bfb 100644
--- a/includes/class-psa-post-type.php
+++ b/includes/class-psa-post-type.php
@@ -6,57 +6,57 @@
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
-    exit;
+	exit;
 }
 
 class PSA_Post_Type {
 
-    /** Meta field keys used throughout the plugin. */
-    const META_FIELDS = array(
-        'psa_sequence'           => 'Amino Acid Sequence',
-        'psa_molecular_weight'   => 'Molecular Weight',
-        'psa_molecular_formula'  => 'Molecular Formula',
-        'psa_aliases'            => 'Aliases / Synonyms',
-        'psa_mechanism'          => 'Mechanism of Action',
-        'psa_research_apps'      => 'Research Applications',
-        'psa_safety_profile'     => 'Safety & Side Effects',
-        'psa_dosage_info'        => 'Dosage Information',
-        'psa_references'         => 'References & Citations',
-        'psa_source'             => 'Data Source',
-        'psa_pubchem_cid'        => 'PubChem CID',
-    );
+	/** Meta field keys used throughout the plugin. */
+	const META_FIELDS = array(
+		'psa_sequence'           => 'Amino Acid Sequence',
+		'psa_molecular_weight'   => 'Molecular Weight',
+		'psa_molecular_formula'  => 'Molecular Formula',
+		'psa_aliases'            => 'Aliases / Synonyms',
+		'psa_mechanism'          => 'Mechanism of Action',
+		'psa_research_apps'      => 'Research Applications',
+		'psa_safety_profile'     => 'Safety & Side Effects',
+		'psa_dosage_info'        => 'Dosage Information',
+		'psa_references'         => 'References & Citations',
+		'psa_source'             => 'Data Source',
+		'psa_pubchem_cid'        => 'PubChem CID',
+	);
 
-    /**
-     * Register admin-only hooks (meta boxes, save).
-     */
-    public static function init_admin() {
-        add_action( 'add_meta_boxes', array( __CLASS__, 'add_meta_boxes' ) );
-        add_action( 'save_post_peptide', array( __CLASS__, 'save_meta' ) );
-    }
+	/**
+	 * Register admin-only hooks (meta boxes, save).
+	 */
+	public static function init_admin() {
+		add_action( 'add_meta_boxes', array( __CLASS__, 'add_meta_boxes' ) );
+		add_action( 'save_post_peptide', array( __CLASS__, 'save_meta' ) );
+	}
 
-    /**
-     * Register the peptide CPT.
-     */
-    public static function register_peptide_post_type() {
-        if ( post_type_exists( 'peptide' ) ) {
-            return;
-        }
+	/**
+	 * Register the peptide CPT.
+	 */
+	public static function register_peptide_post_type() {
+		if ( post_type_exists( 'peptide' ) ) {
+			return;
+		}
 
-        $labels = array(
-            'name'               => 'Peptides',
-            'singular_name'      => 'Peptide',
-            'menu_name'          => 'Peptides',
-            'add_new'            => 'Add Peptide',
-            'add_new_item'       => 'Add New Peptide',
-            'edit_item'          => 'Edit Peptide',
-            'new_item'           => 'New Peptide',
-            'view_item'          => 'View Peptide',
-            'search_items'       => 'Search Peptides',
-            'not_found'          => 'No peptides found',
-            'not_found_in_trash' => 'No peptides found in Trash',
-        );
+		$labels = array(
+			'name'               => 'Peptides',
+			'singular_name'      => 'Peptide',
+			'menu_name'          => 'Peptides',
+			'add_new'            => 'Add Peptide',
+			'add_new_item'       => 'Add New Peptide',
+			'edit_item'          => 'Edit Peptide',
+			'new_item'           => 'New Peptide',
+			'view_item'          => 'View Peptide',
+			'search_items'       => 'Search Peptides',
+			'not_found'          => 'No peptides found',
+			'not_found_in_trash' => 'No peptides found in Trash',
+		);
 
-        register_post_type(
+		register_post_type(
 			'peptide',
 			array(
 				'labels'             => $labels,
@@ -70,89 +70,89 @@ class PSA_Post_Type {
 				'hierarchical'       => false,
 			)
 		);
-    }
+	}
 
-    /**
-     * Add meta boxes to the peptide editor.
-     */
-    public static function add_meta_boxes() {
-        add_meta_box(
-            'psa_peptide_data',
-            'Peptide Scientific Data',
-            array( __CLASS__, 'render_meta_box' ),
-            'peptide',
-            'normal',
-            'high'
-        );
-    }
+	/**
+	 * Add meta boxes to the peptide editor.
+	 */
+	public static function add_meta_boxes() {
+		add_meta_box(
+			'psa_peptide_data',
+			'Peptide Scientific Data',
+			array( __CLASS__, 'render_meta_box' ),
+			'peptide',
+			'normal',
+			'high'
+		);
+	}
 
-    /**
-     * Render the meta box fields.
-     *
-     * @param WP_Post $post The current post object.
-     */
-    public static function render_meta_box( $post ) {
-        wp_nonce_field( 'psa_save_meta', 'psa_meta_nonce' );
+	/**
+	 * Render the meta box fields.
+	 *
+	 * @param WP_Post $post The current post object.
+	 */
+	public static function render_meta_box( $post ) {
+		wp_nonce_field( 'psa_save_meta', 'psa_meta_nonce' );
 
-        $textarea_fields = array(
-            'psa_sequence', 'psa_mechanism', 'psa_research_apps',
-            'psa_safety_profile', 'psa_dosage_info', 'psa_references',
-        );
+		$textarea_fields = array(
+			'psa_sequence', 'psa_mechanism', 'psa_research_apps',
+			'psa_safety_profile', 'psa_dosage_info', 'psa_references',
+		);
 
-        echo '<table class="form-table">';
-        foreach ( self::META_FIELDS as $key => $label ) {
-            $value = get_post_meta( $post->ID, $key, true );
-            echo '<tr>';
-            echo '<th><label for="' . esc_attr( $key ) . '">' . esc_html( $label ) . '</label></th>';
-            echo '<td>';
+		echo '<table class="form-table">';
+		foreach ( self::META_FIELDS as $key => $label ) {
+			$value = get_post_meta( $post->ID, $key, true );
+			echo '<tr>';
+			echo '<th><label for="' . esc_attr( $key ) . '">' . esc_html( $label ) . '</label></th>';
+			echo '<td>';
 
-            if ( $key === 'psa_source' ) {
-                $options = array(
-                    ''             => '— Select —',
-                    'ai-generated' => 'AI Generated',
-                    'pubchem'      => 'PubChem Verified',
-                    'manual'       => 'Manual Entry',
-                    'pending'      => 'Pending Generation',
-                );
-                echo '<select name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '">';
-                foreach ( $options as $opt_val => $opt_label ) {
-                    echo '<option value="' . esc_attr( $opt_val ) . '"' . selected( $value, $opt_val, false ) . '>' . esc_html( $opt_label ) . '</option>';
-                }
-                echo '</select>';
-            } elseif ( in_array( $key, $textarea_fields, true ) ) {
-                echo '<textarea name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '" rows="4" class="large-text">' . esc_textarea( $value ) . '</textarea>';
-            } else {
-                echo '<input type="text" name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '" value="' . esc_attr( $value ) . '" class="regular-text" />';
-            }
+			if ( $key === 'psa_source' ) {
+				$options = array(
+					''             => '— Select —',
+					'ai-generated' => 'AI Generated',
+					'pubchem'      => 'PubChem Verified',
+					'manual'       => 'Manual Entry',
+					'pending'      => 'Pending Generation',
+				);
+				echo '<select name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '">';
+				foreach ( $options as $opt_val => $opt_label ) {
+					echo '<option value="' . esc_attr( $opt_val ) . '"' . selected( $value, $opt_val, false ) . '>' . esc_html( $opt_label ) . '</option>';
+				}
+				echo '</select>';
+			} elseif ( in_array( $key, $textarea_fields, true ) ) {
+				echo '<textarea name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '" rows="4" class="large-text">' . esc_textarea( $value ) . '</textarea>';
+			} else {
+				echo '<input type="text" name="' . esc_attr( $key ) . '" id="' . esc_attr( $key ) . '" value="' . esc_attr( $value ) . '" class="regular-text" />';
+			}
 
-            echo '</td></tr>';
-        }
-        echo '</table>';
-    }
+			echo '</td></tr>';
+		}
+		echo '</table>';
+	}
 
-    /**
-     * Save meta field values.
-     *
-     * @param int $post_id The post ID.
-     */
-    public static function save_meta( $post_id ) {
-        // phpcs:ignore WordPress.Security.ValidatedSanitizedInput
-        if ( ! isset( $_POST['psa_meta_nonce'] ) ||
-             ! wp_verify_nonce( wp_unslash( $_POST['psa_meta_nonce'] ), 'psa_save_meta' ) ) {
-            return;
-        }
-        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
-            return;
-        }
-        if ( ! current_user_can( 'edit_post', $post_id ) ) {
-            return;
-        }
+	/**
+	 * Save meta field values.
+	 *
+	 * @param int $post_id The post ID.
+	 */
+	public static function save_meta( $post_id ) {
+		// phpcs:ignore WordPress.Security.ValidatedSanitizedInput
+		if ( ! isset( $_POST['psa_meta_nonce'] ) ||
+			 ! wp_verify_nonce( wp_unslash( $_POST['psa_meta_nonce'] ), 'psa_save_meta' ) ) {
+			return;
+		}
+		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
+			return;
+		}
+		if ( ! current_user_can( 'edit_post', $post_id ) ) {
+			return;
+		}
 
-        foreach ( self::META_FIELDS as $key => $label ) {
-            if ( isset( $_POST[ $key ] ) ) {
-                $value = sanitize_textarea_field( wp_unslash( $_POST[ $key ] ) );
-                update_post_meta( $post_id, $key, $value );
-            }
-        }
-    }
+		foreach ( self::META_FIELDS as $key => $label ) {
+			if ( isset( $_POST[ $key ] ) ) {
+				$value = sanitize_textarea_field( wp_unslash( $_POST[ $key ] ) );
+				update_post_meta( $post_id, $key, $value );
+			}
+		}
+	}
 }
diff --git a/includes/class-psa-pubchem.php b/includes/class-psa-pubchem.php
index 9f82c6a..b42e15e 100644
--- a/includes/class-psa-pubchem.php
+++ b/includes/class-psa-pubchem.php
@@ -6,82 +6,82 @@
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
-    exit;
+	exit;
 }
 
 class PSA_PubChem {
 
-    const API_BASE = 'https://pubchem.ncbi.nlm.nih.gov/rest/pug';
+	const API_BASE = 'https://pubchem.ncbi.nlm.nih.gov/rest/pug';
 
-    /**
-     * Look up a peptide/compound by name and return molecular properties.
-     * Results are cached in transients to respect PubChem rate limits.
-     *
-     * @param string $name Peptide or compound name.
-     * @return array|WP_Error|null Array of properties, WP_Error on failure, or null if not found.
-     */
-    public static function lookup( $name ) {
-        $options     = get_option( 'psa_settings', array() );
-        $use_pubchem = $options['use_pubchem'] ?? '1';
+	/**
+	 * Look up a peptide/compound by name and return molecular properties.
+	 * Results are cached in transients to respect PubChem rate limits.
+	 *
+	 * @param string $name Peptide or compound name.
+	 * @return array|WP_Error|null Array of properties, WP_Error on failure, or null if not found.
+	 */
+	public static function lookup( $name ) {
+		$options     = get_option( 'psa_settings', array() );
+		$use_pubchem = $options['use_pubchem'] ?? '1';
 
-        if ( '1' !== $use_pubchem ) {
-            return null;
-        }
+		if ( '1' !== $use_pubchem ) {
+			return null;
+		}
 
-        // Check cache first (respect PubChem's 5 req/sec limit).
-        $cache_key = 'psa_pubchem_' . md5( strtolower( trim( $name ) ) );
-        $cached    = get_transient( $cache_key );
-        if ( false !== $cached ) {
-            // We store 'not_found' string to differentiate from cache miss.
-            if ( 'not_found' === $cached ) {
-                return null;
-            }
-            if ( is_wp_error( $cached ) ) {
-                return $cached;
-            }
-            return $cached;
-        }
+		// Check cache first (respect PubChem's 5 req/sec limit).
+		$cache_key = 'psa_pubchem_' . md5( strtolower( trim( $name ) ) );
+		$cached    = get_transient( $cache_key );
+		if ( false !== $cached ) {
+			// We store 'not_found' string to differentiate from cache miss.
+			if ( 'not_found' === $cached ) {
+				return null;
+			}
+			if ( is_wp_error( $cached ) ) {
+				return $cached;
+			}
+			return $cached;
+		}
 
-        // Step 1: Get the CID by compound name.
-        $cid = self::get_cid_by_name( $name );
-        if ( is_wp_error( $cid ) ) {
-            set_transient( $cache_key, $cid, 1 * HOUR_IN_SECONDS );
-            return $cid;
-        }
-        if ( ! $cid ) {
-            set_transient( $cache_key, 'not_found', 12 * HOUR_IN_SECONDS );
-            return null;
-        }
+		// Step 1: Get the CID by compound name.
+		$cid = self::get_cid_by_name( $name );
+		if ( is_wp_error( $cid ) ) {
+			set_transient( $cache_key, $cid, 1 * HOUR_IN_SECONDS );
+			return $cid;
+		}
+		if ( ! $cid ) {
+			set_transient( $cache_key, 'not_found', 12 * HOUR_IN_SECONDS );
+			return null;
+		}
 
-        // Step 2: Get properties by CID.
-        $properties = self::get_properties( $cid );
-        if ( is_wp_error( $properties ) ) {
-            set_transient( $cache_key, $properties, 1 * HOUR_IN_SECONDS );
-            return $properties;
-        }
-        if ( ! $properties ) {
-            set_transient( $cache_key, 'not_found', 12 * HOUR_IN_SECONDS );
-            return null;
-        }
+		// Step 2: Get properties by CID.
+		$properties = self::get_properties( $cid );
+		if ( is_wp_error( $properties ) ) {
+			set_transient( $cache_key, $properties, 1 * HOUR_IN_SECONDS );
+			return $properties;
+		}
+		if ( ! $properties ) {
+			set_transient( $cache_key, 'not_found', 12 * HOUR_IN_SECONDS );
+			return null;
+		}
 
-        $properties['cid'] = $cid;
+		$properties['cid'] = $cid;
 
-        // Cache successful lookups for 7 days.
-        set_transient( $cache_key, $properties, PSA_Config::PUBCHEM_CACHE_TTL ?: 7 * DAY_IN_SECONDS );
+		// Cache successful lookups for 7 days.
+		set_transient( $cache_key, $properties, PSA_Config::PUBCHEM_CACHE_TTL ?: 7 * DAY_IN_SECONDS );
 
-        return $properties;
-    }
+		return $properties;
+	}
 
-    /**
-     * Get PubChem Compound ID (CID) by name.
-     *
-     * @param string $name Compound name.
-     * @return int|WP_Error|null CID, WP_Error on API failure, or null if not found.
-     */
-    private static function get_cid_by_name( $name ) {
-        $url = self::API_BASE . '/compound/name/' . rawurlencode( $name ) . '/cids/JSON';
+	/**
+	 * Get PubChem Compound ID (CID) by name.
+	 *
+	 * @param string $name Compound name.
+	 * @return int|WP_Error|null CID, WP_Error on API failure, or null if not found.
+	 */
+	private static function get_cid_by_name( $name ) {
+		$url = self::API_BASE . '/compound/name/' . rawurlencode( $name ) . '/cids/JSON';
 
-        $response = wp_remote_get(
+		$response = wp_remote_get(
 			$url,
 			array(
 				'timeout' => 15,
@@ -89,33 +89,33 @@ class PSA_PubChem {
 			)
 		);
 
-        if ( is_wp_error( $response ) ) {
-            return new WP_Error( 'pubchem_api_error', 'PubChem API request failed: ' . $response->get_error_message() );
-        }
+		if ( is_wp_error( $response ) ) {
+			return new WP_Error( 'pubchem_api_error', 'PubChem API request failed: ' . $response->get_error_message() );
+		}
 
-        $code = wp_remote_retrieve_response_code( $response );
-        if ( 200 !== $code ) {
-            return new WP_Error( 'pubchem_http_error', 'PubChem returned HTTP ' . $code );
-        }
+		$code = wp_remote_retrieve_response_code( $response );
+		if ( 200 !== $code ) {
+			return new WP_Error( 'pubchem_http_error', 'PubChem returned HTTP ' . $code );
+		}
 
-        $body = json_decode( wp_remote_retrieve_body( $response ), true );
+		$body = json_decode( wp_remote_retrieve_body( $response ), true );
 
-        return isset( $body['IdentifierList']['CID'][0] )
-            ? (int) $body['IdentifierList']['CID'][0]
-            : null;
-    }
+		return isset( $body['IdentifierList']['CID'][0] )
+			? (int) $body['IdentifierList']['CID'][0]
+			: null;
+	}
 
-    /**
-     * Get molecular properties for a given CID.
-     *
-     * @param int $cid PubChem Compound ID.
-     * @return array|WP_Error|null Properties array, WP_Error on failure, or null if not found.
-     */
-    private static function get_properties( $cid ) {
-        $props = 'MolecularFormula,MolecularWeight,IUPACName,CanonicalSMILES,InChI';
-        $url   = self::API_BASE . '/compound/cid/' . (int) $cid . '/property/' . $props . '/JSON';
+	/**
+	 * Get molecular properties for a given CID.
+	 *
+	 * @param int $cid PubChem Compound ID.
+	 * @return array|WP_Error|null Properties array, WP_Error on failure, or null if not found.
+	 */
+	private static function get_properties( $cid ) {
+		$props = 'MolecularFormula,MolecularWeight,IUPACName,CanonicalSMILES,InChI';
+		$url   = self::API_BASE . '/compound/cid/' . (int) $cid . '/property/' . $props . '/JSON';
 
-        $response = wp_remote_get(
+		$response = wp_remote_get(
 			$url,
 			array(
 				'timeout' => 15,
@@ -123,29 +123,29 @@ class PSA_PubChem {
 			)
 		);
 
-        if ( is_wp_error( $response ) ) {
-            return new WP_Error( 'pubchem_api_error', 'PubChem API request failed: ' . $response->get_error_message() );
-        }
+		if ( is_wp_error( $response ) ) {
+			return new WP_Error( 'pubchem_api_error', 'PubChem API request failed: ' . $response->get_error_message() );
+		}
 
-        $code = wp_remote_retrieve_response_code( $response );
-        if ( 200 !== $code ) {
-            return new WP_Error( 'pubchem_http_error', 'PubChem returned HTTP ' . $code );
-        }
+		$code = wp_remote_retrieve_response_code( $response );
+		if ( 200 !== $code ) {
+			return new WP_Error( 'pubchem_http_error', 'PubChem returned HTTP ' . $code );
+		}
 
-        $body = json_decode( wp_remote_retrieve_body( $response ), true );
+		$body = json_decode( wp_remote_retrieve_body( $response ), true );
 
-        if ( ! isset( $body['PropertyTable']['Properties'][0] ) ) {
-            return null;
-        }
+		if ( ! isset( $body['PropertyTable']['Properties'][0] ) ) {
+			return null;
+		}
 
-        $p = $body['PropertyTable']['Properties'][0];
+		$p = $body['PropertyTable']['Properties'][0];
 
-        return array(
-            'molecular_formula' => $p['MolecularFormula'] ?? '',
-            'molecular_weight'  => isset( $p['MolecularWeight'] ) ? $p['MolecularWeight'] . ' Da' : '',
-            'iupac_name'        => $p['IUPACName'] ?? '',
-            'smiles'            => $p['CanonicalSMILES'] ?? '',
-            'inchi'             => $p['InChI'] ?? '',
-        );
-    }
+		return array(
+			'molecular_formula' => $p['MolecularFormula'] ?? '',
+			'molecular_weight'  => isset( $p['MolecularWeight'] ) ? $p['MolecularWeight'] . ' Da' : '',
+			'iupac_name'        => $p['IUPACName'] ?? '',
+			'smiles'            => $p['CanonicalSMILES'] ?? '',
+			'inchi'             => $p['InChI'] ?? '',
+		);
+	}
 }
diff --git a/includes/class-psa-template.php b/includes/class-psa-template.php
index 793cf15..603918b 100644
--- a/includes/class-psa-template.php
+++ b/includes/class-psa-template.php
@@ -6,117 +6,117 @@
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
-    exit;
+	exit;
 }
 
 class PSA_Template {
 
-    public static function init() {
-        add_filter( 'the_content', array( __CLASS__, 'append_peptide_data' ) );
-    }
+	public static function init() {
+		add_filter( 'the_content', array( __CLASS__, 'append_peptide_data' ) );
+	}
 
-    /**
-     * Append structured peptide data below the post content on single peptide pages.
-     *
-     * @param string $content The post content.
-     * @return string Modified content.
-     */
-    public static function append_peptide_data( $content ) {
-        if ( ! is_singular( 'peptide' ) || ! in_the_loop() || ! is_main_query() ) {
-            return $content;
-        }
+	/**
+	 * Append structured peptide data below the post content on single peptide pages.
+	 *
+	 * @param string $content The post content.
+	 * @return string Modified content.
+	 */
+	public static function append_peptide_data( $content ) {
+		if ( ! is_singular( 'peptide' ) || ! in_the_loop() || ! is_main_query() ) {
+			return $content;
+		}
 
-        $post_id     = get_the_ID();
-        $source      = get_post_meta( $post_id, 'psa_source', true );
-        $pubchem_cid = get_post_meta( $post_id, 'psa_pubchem_cid', true );
+		$post_id     = get_the_ID();
+		$source      = get_post_meta( $post_id, 'psa_source', true );
+		$pubchem_cid = get_post_meta( $post_id, 'psa_pubchem_cid', true );
 
-        // Build template data for filtering.
-        $data = array(
-            'post_id'     => $post_id,
-            'source'      => $source,
-            'pubchem_cid' => $pubchem_cid,
-        );
+		// Build template data for filtering.
+		$data = array(
+			'post_id'     => $post_id,
+			'source'      => $source,
+			'pubchem_cid' => $pubchem_cid,
+		);
 
-        // Allow filtering of template data before rendering.
-        $data = apply_filters( 'psa_template_data', $data, $post_id );
+		// Allow filtering of template data before rendering.
+		$data = apply_filters( 'psa_template_data', $data, $post_id );
 
-        // Restore values from possibly filtered data.
-        $post_id     = $data['post_id'] ?? $post_id;
-        $source      = $data['source'] ?? $source;
-        $pubchem_cid = $data['pubchem_cid'] ?? $pubchem_cid;
+		// Restore values from possibly filtered data.
+		$post_id     = $data['post_id'] ?? $post_id;
+		$source      = $data['source'] ?? $source;
+		$pubchem_cid = $data['pubchem_cid'] ?? $pubchem_cid;
 
-        $html = '<div class="psa-peptide-data">';
+		$html = '<div class="psa-peptide-data">';
 
-        // Quick facts box.
-        $weight  = get_post_meta( $post_id, 'psa_molecular_weight', true );
-        $formula = get_post_meta( $post_id, 'psa_molecular_formula', true );
-        $seq     = get_post_meta( $post_id, 'psa_sequence', true );
-        $aliases = get_post_meta( $post_id, 'psa_aliases', true );
+		// Quick facts box.
+		$weight  = get_post_meta( $post_id, 'psa_molecular_weight', true );
+		$formula = get_post_meta( $post_id, 'psa_molecular_formula', true );
+		$seq     = get_post_meta( $post_id, 'psa_sequence', true );
+		$aliases = get_post_meta( $post_id, 'psa_aliases', true );
 
-        if ( $weight || $formula || $seq ) {
-            $html .= '<div class="psa-quick-facts">';
-            $html .= '<h3>Quick Facts</h3>';
-            $html .= '<table class="psa-facts-table">';
+		if ( $weight || $formula || $seq ) {
+			$html .= '<div class="psa-quick-facts">';
+			$html .= '<h3>Quick Facts</h3>';
+			$html .= '<table class="psa-facts-table">';
 
-            if ( $aliases ) {
-                $html .= '<tr><th>Also Known As</th><td>' . esc_html( $aliases ) . '</td></tr>';
-            }
-            if ( $seq ) {
-                $html .= '<tr><th>Sequence</th><td><code class="psa-sequence">' . esc_html( $seq ) . '</code></td></tr>';
-            }
-            if ( $formula ) {
-                $html .= '<tr><th>Molecular Formula</th><td>' . esc_html( $formula ) . '</td></tr>';
-            }
-            if ( $weight ) {
-                $html .= '<tr><th>Molecular Weight</th><td>' . esc_html( $weight ) . '</td></tr>';
-            }
-            if ( $pubchem_cid ) {
-                $cid_int = intval( $pubchem_cid );
-                $html   .= '<tr><th>PubChem CID</th><td><a href="https://pubchem.ncbi.nlm.nih.gov/compound/' . $cid_int . '" target="_blank" rel="noopener">' . $cid_int . '</a></td></tr>';
-            }
+			if ( $aliases ) {
+				$html .= '<tr><th>Also Known As</th><td>' . esc_html( $aliases ) . '</td></tr>';
+			}
+			if ( $seq ) {
+				$html .= '<tr><th>Sequence</th><td><code class="psa-sequence">' . esc_html( $seq ) . '</code></td></tr>';
+			}
+			if ( $formula ) {
+				$html .= '<tr><th>Molecular Formula</th><td>' . esc_html( $formula ) . '</td></tr>';
+			}
+			if ( $weight ) {
+				$html .= '<tr><th>Molecular Weight</th><td>' . esc_html( $weight ) . '</td></tr>';
+			}
+			if ( $pubchem_cid ) {
+				$cid_int = intval( $pubchem_cid );
+				$html   .= '<tr><th>PubChem CID</th><td><a href="https://pubchem.ncbi.nlm.nih.gov/compound/' . $cid_int . '" target="_blank" rel="noopener">' . $cid_int . '</a></td></tr>';
+			}
 
-            $html .= '</table>';
-            $html .= '</div>';
-        }
+			$html .= '</table>';
+			$html .= '</div>';
+		}
 
-        // Detailed sections.
-        $detail_fields = array(
-            'psa_mechanism'      => 'Mechanism of Action',
-            'psa_research_apps'  => 'Research Applications',
-            'psa_safety_profile' => 'Safety & Side Effects',
-            'psa_dosage_info'    => 'Dosage Information',
-            'psa_references'     => 'References',
-        );
+		// Detailed sections.
+		$detail_fields = array(
+			'psa_mechanism'      => 'Mechanism of Action',
+			'psa_research_apps'  => 'Research Applications',
+			'psa_safety_profile' => 'Safety & Side Effects',
+			'psa_dosage_info'    => 'Dosage Information',
+			'psa_references'     => 'References',
+		);
 
-        foreach ( $detail_fields as $key => $label ) {
-            $value = get_post_meta( $post_id, $key, true );
-            if ( ! empty( $value ) ) {
-                $html .= '<div class="psa-section">';
-                $html .= '<h3>' . esc_html( $label ) . '</h3>';
-                $html .= '<div class="psa-section-content">' . wp_kses_post( wpautop( $value ) ) . '</div>';
-                $html .= '</div>';
-            }
-        }
+		foreach ( $detail_fields as $key => $label ) {
+			$value = get_post_meta( $post_id, $key, true );
+			if ( ! empty( $value ) ) {
+				$html .= '<div class="psa-section">';
+				$html .= '<h3>' . esc_html( $label ) . '</h3>';
+				$html .= '<div class="psa-section-content">' . wp_kses_post( wpautop( $value ) ) . '</div>';
+				$html .= '</div>';
+			}
+		}
 
-        // Source badge.
-        if ( $source && 'pending' !== $source ) {
-            $badges = array(
-                'ai-generated' => array( 'label' => 'AI-Generated Content', 'class' => 'psa-badge-ai' ),
-                'pubchem'      => array( 'label' => 'PubChem Verified', 'class' => 'psa-badge-verified' ),
-                'manual'       => array( 'label' => 'Manually Curated', 'class' => 'psa-badge-manual' ),
-            );
-            $badge = $badges[ $source ] ?? $badges['ai-generated'];
+		// Source badge.
+		if ( $source && 'pending' !== $source ) {
+			$badges = array(
+				'ai-generated' => array( 'label' => 'AI-Generated Content', 'class' => 'psa-badge-ai' ),
+				'pubchem'      => array( 'label' => 'PubChem Verified', 'class' => 'psa-badge-verified' ),
+				'manual'       => array( 'label' => 'Manually Curated', 'class' => 'psa-badge-manual' ),
+			);
+			$badge = $badges[ $source ] ?? $badges['ai-generated'];
 
-            $html .= '<div class="psa-source-badge ' . esc_attr( $badge['class'] ) . '">';
-            $html .= esc_html( $badge['label'] );
-            if ( 'ai-generated' === $source ) {
-                $html .= ' &mdash; This entry was automatically generated and may contain inaccuracies. Please verify critical information with primary sources.';
-            }
-            $html .= '</div>';
-        }
+			$html .= '<div class="psa-source-badge ' . esc_attr( $badge['class'] ) . '">';
+			$html .= esc_html( $badge['label'] );
+			if ( 'ai-generated' === $source ) {
+				$html .= ' &mdash; This entry was automatically generated and may contain inaccuracies. Please verify critical information with primary sources.';
+			}
+			$html .= '</div>';
+		}
 
-        $html .= '</div>';
+		$html .= '</div>';
 
-        return $content . $html;
-    }
+		return $content . $html;
+	}
 }