12 files changed, 500 insertions, 494 deletions
diff --git a/assets/css/footer.css b/assets/css/footer.css
new file mode 100644
index 0000000..88d705c
--- /dev/null
+++ b/assets/css/footer.css
@@ -0,0 +1,31 @@
+/* FOOTER */
+.site__footer {
+    display: flex;
+    align-items: center;
+    justify-content: space-around;
+    margin-top: var(--gap-medium);
+
+    @media (max-width: 768px) {
+        flex-direction: column;
+        gap: var(--gap-default);
+    }
+}
+
+.follow-me-list {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--gap-medium);
+
+    @media (max-width: 768px) {
+        flex-wrap: wrap;
+    }
+}
+
+/* Footer Icons */
+.follow-me-item img {
+    object-fit: contain;
+    height: 2rem;
+    width: 2rem;
+}
+
diff --git a/assets/css/header.css b/assets/css/header.css
new file mode 100644
index 0000000..8cb9e9d
--- /dev/null
+++ b/assets/css/header.css
@@ -0,0 +1,41 @@
+/* HEADER */
+.site__header {
+    display: flex;
+    align-items: center;
+    justify-content: space-around;
+    margin-bottom: var(--gap-medium);
+}
+
+.site-selections,
+.site-selections * {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--gap-medium);
+}
+
+.site-title {
+    color: inherit !important;
+    font-size: var(--font-size-h1);
+    font-weight: bold;
+    text-decoration: none;
+}
+
+/* Flag Icon */
+.language-select__language-item img {
+    height: 2rem;
+}
+
+.theme-toggle {
+    background-color: var(--text-color);
+    border: none;
+    border-radius: var(--border-radius-max);
+    color: var(--bg-main);
+    cursor: pointer;
+    padding: 0.2rem;
+}
+
+.theme-toggle svg {
+    display: none;
+}
+
diff --git a/assets/css/list-navigation.css b/assets/css/list-navigation.css
new file mode 100644
index 0000000..2f8495c
--- /dev/null
+++ b/assets/css/list-navigation.css
@@ -0,0 +1,18 @@
+/* List navigation */
+.pagination {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}
+
+.recent-posts__view-all-link,
+.tag-page__view-all-link {
+    display: block;
+    margin: 0 auto;
+    width: max-content;
+}
+
+.tags-index__list > li {
+    margin-bottom: var(--gap-small);
+}
+
diff --git a/assets/css/main.css b/assets/css/main.css
index a17c9b3..c693221 100644
--- a/assets/css/main.css
+++ b/assets/css/main.css
@@ -25,7 +25,7 @@
     --text-color: #1e1e1e;
 }
 
-/* BASICS */
+/* BASE SETTINGS */
 *,
 *::before,
 *::after {
@@ -51,7 +51,7 @@ html {
     &[data-theme="dark"] {
         --bg-main: #0a234a;
         --bg-special: #1e4a73;
-	--glow: rgba(79, 195, 247, 0.24);
+        --glow: rgba(79, 195, 247, 0.24);
         --link-color: #4fc3f7;
         --link-hover: #039be5;
         --shadow-default: 0 2px 6px rgba(224, 224, 224, 0.15);
@@ -220,347 +220,3 @@ p > code {
     width: fit-content;
 }
 
-/* HEADER */
-.site__header {
-    display: flex;
-    align-items: center;
-    justify-content: space-around;
-    margin-bottom: var(--gap-medium);
-}
-
-.site-selections,
-.site-selections * {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: var(--gap-medium);
-}
-
-.site-title {
-    color: inherit !important;
-    font-size: var(--font-size-h1);
-    font-weight: bold;
-    text-decoration: none;
-}
-
-/* Flag Icon */
-.language-select__language-item img {
-    height: 2rem;
-}
-
-.theme-toggle {
-    background-color: var(--text-color);
-    border: none;
-    border-radius: var(--border-radius-max);
-    color: var(--bg-main);
-    cursor: pointer;
-    padding: 0.2rem;
-}
-
-.theme-toggle svg {
-    display: none;
-}
-
-/* SITE NAVMENU */
-.header__navigation {
-    background-color: var(--bg-special);
-    border-radius: var(--border-radius-default);
-    padding: var(--margin-padding-Y-small);
-}
-
-.header__navigation-list {
-    display: flex;
-    align-items: center;
-    justify-content: space-evenly;
-
-    @media (max-width: 768px) {
-        /* Grid items stretch to at least 100px or take up full width */
-        display: grid;
-        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
-        justify-items: center;
-        gap: var(--gap-medium) var(--gap-small);
-    }
-}
-
-.header__navigation-link--active {
-    color: var(--text-color);
-    text-decoration: none;
-}
-
-/* FOOTER */
-.site__footer {
-    display: flex;
-    align-items: center;
-    justify-content: space-around;
-    margin-top: var(--gap-medium);
-
-    @media (max-width: 768px) {
-        flex-direction: column;
-        gap: var(--gap-default);
-    }
-}
-
-.follow-me-list {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: var(--gap-medium);
-
-    @media (max-width: 768px) {
-        flex-wrap: wrap;
-    }
-}
-
-/* Footer Icons */
-.follow-me-item img {
-    object-fit: contain;
-    height: 2rem;
-    width: 2rem;
-}
-
-/* POST CARD */
-.post-card {
-    border: 3px solid var(--bg-special);
-    border-radius: var(--border-radius-default);
-    margin: 0 auto 1.5rem;
-    padding: 0 var(--gap-default);
-    width: 90%;
-
-    & .post-card__title {
-        font-size: var(--font-size-default);
-        margin-top: var(--gap-default);
-    }
-
-    & .post-card__meta {
-        display: flex;
-        align-items: center;
-        gap: var(--gap-small);
-    }
-
-    & .post-card__meta,
-    .post-card__summary {
-        font-size: var(--font-size-small);
-    }
-
-    & .post-card__meta-info {
-        margin-bottom: 0;
-    }
-
-    @media (max-width: 768px) {
-        padding: 0 var(--gap-small);
-    }
-}
-
-.post-card__header {
-    display: flex;
-    flex-direction: column;
-    align-items: start;
-    justify-content: center;
-    gap: 0.5rem;
-    margin: var(--margin-padding-Y-small);
-}
-
-.post-card__tags-list {
-    display: flex;
-    align-items: center;
-    justify-content: start;
-    gap: var(--gap-default);
-    margin: var(--margin-padding-Y-default) !important;
-
-    @media (max-width: 768px) {
-        flex-direction: column;
-        align-items: start;
-    }
-}
-
-.post-card__tags-item {
-    background-color: var(--bg-special);
-    border-radius: var(--border-radius-max);
-    color: var(--text-color);
-    font-size: var(--font-size-small);
-    padding: 0.1rem 0.4rem;
-}
-
-.post-card__section-badge {
-    background-color: var(--link-color);
-    border-radius: var(--border-radius-max);
-    color: var(--bg-main);
-    font-size: var(--font-size-small);
-    padding: 0.1rem 0.4rem;
-}
-
-/* PAGES Content */
-.page-not-found {
-    text-align: center;
-}
-
-/* Homepage */
-.homepage__header {
-    text-align: center;
-}
-
-.homepage__header-image {
-    border: 4px solid var(--bg-special);
-    border-radius: var(--border-radius-max);
-    display: block;
-    margin: 1rem auto;
-    max-width: 150px;
-    max-height: 150px;
-}
-
-/* Article */
-.post {
-    position: relative; /* Needed for post__scroll-top */
-}
-
-.post__content ol > li,
-.post__content ul > li {
-    margin-bottom: var(--gap-small);
-}
-
-.post__header {
-    margin-bottom: var(--gap-large);
-}
-
-.post__navigation > hr {
-    height: 2px;
-    margin-bottom: var(--gap-large);
-}
-
-.post__navigation-list {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    margin: 0 1rem !important;
-
-    @media (max-width: 768px) {
-        flex-direction: column;
-        gap: var(--gap-default);
-        margin: 0 !important;
-    }
-}
-
-.post__scroll-top {
-    background-color: var(--bg-special);
-    border-radius: var(--border-radius-max);
-    box-shadow: var(--shadow-default);
-    cursor: pointer;
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    height: 2.5rem;
-    width: 2.5rem;
-    position: absolute;
-    bottom: 6rem;
-    right: 0;
-    z-index: 1000;
-
-    & svg {
-        height: 2rem;
-        width: 2rem;
-        padding-bottom: 0.2rem;
-    }
-
-    /* Arrow up  */
-    & svg > path {
-        stroke: var(--text-color);
-
-        &:hover {
-            stroke: var(--bg-main);
-        }
-    }
-
-    &:hover {
-        background-color: var(--link-hover);
-    }
-}
-
-.post__tags {
-    margin: var(--margin-padding-Y-big);
-}
-
-.post__tags-heading {
-    font-weight: bold;
-}
-
-.post__tags-list {
-    display: flex;
-    gap: var(--gap-default);
-
-    @media (max-width: 768px) {
-        flex-direction: column;
-    }
-}
-
-.post__tags-link {
-    font-weight: normal;
-}
-
-/* List navigation */
-.pagination {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-}
-
-.recent-posts__view-all-link,
-.tag-page__view-all-link {
-    display: block;
-    margin: 0 auto;
-    width: max-content;
-}
-
-.tags-index__list > li {
-    margin-bottom: var(--gap-small);
-}
-
-/* Search */
-.search-form__input {
-    font-size: var(--font-size-default);
-    border: 1px solid var(--bg-special);
-    border-radius: var(--border-radius-minimal);
-    margin-right: var(--gap-small);
-    padding: 0.2rem;
-    height: var(--font-size-h1);
-    width: 50%;
-
-    &:focus {
-        border-color: var(--link-color);
-        box-shadow: var(--glow);
-        outline: none;
-    }
-
-    @media (max-width: 768px) {
-        width: 90%;
-    }
-}
-
-.search-form__reset {
-    background-color: var(--bg-special);
-    border: none;
-    border-radius: var(--border-radius-max);
-    box-shadow: var(--shadow-default);
-    color: var(--text-color);
-    font-size: var(--font-size-default);
-    font-weight: bold;
-    padding: 0.1rem 0.5rem 0.3rem 0.5rem;
-
-    &:hover {
-        background-color: var(--link-hover);
-        color: var(--bg-main);
-        cursor: pointer;
-    }
-}
-
-.search-input {
-    width: 30vw;
-
-    @media (max-width: 768px) {
-        width: 100vw;
-    }
-}
-
-.search-results__count {
-    font-weight: bold;
-    margin: var(--margin-padding-Y-default);
-}
diff --git a/assets/css/navmenu.css b/assets/css/navmenu.css
new file mode 100644
index 0000000..d092e6c
--- /dev/null
+++ b/assets/css/navmenu.css
@@ -0,0 +1,26 @@
+/* SITE NAVMENU */
+.header__navigation {
+    background-color: var(--bg-special);
+    border-radius: var(--border-radius-default);
+    padding: var(--margin-padding-Y-small);
+}
+
+.header__navigation-list {
+    display: flex;
+    align-items: center;
+    justify-content: space-evenly;
+
+    @media (max-width: 768px) {
+        /* Grid items stretch to at least 100px or take up full width */
+        display: grid;
+        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
+        justify-items: center;
+        gap: var(--gap-medium) var(--gap-small);
+    }
+}
+
+.header__navigation-link--active {
+    color: var(--text-color);
+    text-decoration: none;
+}
+
diff --git a/assets/css/page.css b/assets/css/page.css
new file mode 100644
index 0000000..daec989
--- /dev/null
+++ b/assets/css/page.css
@@ -0,0 +1,19 @@
+/* PAGES Content */
+.page-not-found {
+    text-align: center;
+}
+
+/* Homepage */
+.homepage__header {
+    text-align: center;
+}
+
+.homepage__header-image {
+    border: 4px solid var(--bg-special);
+    border-radius: var(--border-radius-max);
+    display: block;
+    margin: 1rem auto;
+    max-width: 150px;
+    max-height: 150px;
+}
+
diff --git a/assets/css/post-card.css b/assets/css/post-card.css
new file mode 100644
index 0000000..c8afb42
--- /dev/null
+++ b/assets/css/post-card.css
@@ -0,0 +1,71 @@
+/* POST CARD */
+.post-card {
+    border: 3px solid var(--bg-special);
+    border-radius: var(--border-radius-default);
+    margin: 0 auto 1.5rem;
+    padding: 0 var(--gap-default);
+    width: 90%;
+
+    & .post-card__title {
+        font-size: var(--font-size-default);
+        margin-top: var(--gap-default);
+    }
+
+    & .post-card__meta {
+        display: flex;
+        align-items: center;
+        gap: var(--gap-small);
+    }
+
+    & .post-card__meta,
+    .post-card__summary {
+        font-size: var(--font-size-small);
+    }
+
+    & .post-card__meta-info {
+        margin-bottom: 0;
+    }
+
+    @media (max-width: 768px) {
+        padding: 0 var(--gap-small);
+    }
+}
+
+.post-card__header {
+    display: flex;
+    flex-direction: column;
+    align-items: start;
+    justify-content: center;
+    gap: 0.5rem;
+    margin: var(--margin-padding-Y-small);
+}
+
+.post-card__tags-list {
+    display: flex;
+    align-items: center;
+    justify-content: start;
+    gap: var(--gap-default);
+    margin: var(--margin-padding-Y-default) !important;
+
+    @media (max-width: 768px) {
+        flex-direction: column;
+        align-items: start;
+    }
+}
+
+.post-card__tags-item {
+    background-color: var(--bg-special);
+    border-radius: var(--border-radius-max);
+    color: var(--text-color);
+    font-size: var(--font-size-small);
+    padding: 0.1rem 0.4rem;
+}
+
+.post-card__section-badge {
+    border-radius: var(--border-radius-max);
+    color: var(--link-color);
+    font-size: var(--font-size-small);
+    font-weight: bold;
+    padding: 0.1rem 0.4rem;
+}
+
diff --git a/assets/css/post.css b/assets/css/post.css
new file mode 100644
index 0000000..2c7fcd5
--- /dev/null
+++ b/assets/css/post.css
@@ -0,0 +1,88 @@
+/* Post/Article */
+.post {
+    position: relative; /* Needed for post__scroll-top */
+}
+
+.post__content ol > li,
+.post__content ul > li {
+    margin-bottom: var(--gap-small);
+}
+
+.post__header {
+    margin-bottom: var(--gap-large);
+}
+
+.post__navigation > hr {
+    height: 2px;
+    margin-bottom: var(--gap-large);
+}
+
+.post__navigation-list {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    margin: 0 1rem !important;
+
+    @media (max-width: 768px) {
+        flex-direction: column;
+        gap: var(--gap-default);
+        margin: 0 !important;
+    }
+}
+
+.post__scroll-top {
+    background-color: var(--bg-special);
+    border-radius: var(--border-radius-max);
+    box-shadow: var(--shadow-default);
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    height: 2.5rem;
+    width: 2.5rem;
+    position: absolute;
+    bottom: 6rem;
+    right: 0;
+    z-index: 1000;
+
+    & svg {
+        height: 2rem;
+        width: 2rem;
+        padding-bottom: 0.2rem;
+    }
+
+    /* Arrow up  */
+    & svg > path {
+        stroke: var(--text-color);
+    }
+
+    &:hover {
+        background-color: var(--link-hover);
+
+        & svg > path {
+            stroke: var(--bg-main);
+        }
+    }
+}
+
+.post__tags {
+    margin: var(--margin-padding-Y-big);
+}
+
+.post__tags-heading {
+    font-weight: bold;
+}
+
+.post__tags-list {
+    display: flex;
+    gap: var(--gap-default);
+
+    @media (max-width: 768px) {
+        flex-direction: column;
+    }
+}
+
+.post__tags-link {
+    font-weight: normal;
+}
+
diff --git a/assets/css/search.css b/assets/css/search.css
new file mode 100644
index 0000000..7b6feab
--- /dev/null
+++ b/assets/css/search.css
@@ -0,0 +1,51 @@
+/* Search */
+.search-form__input {
+    font-size: var(--font-size-default);
+    border: 2px solid var(--bg-special);
+    border-radius: var(--border-radius-minimal);
+    margin-right: var(--gap-small);
+    padding: 0.2rem;
+    height: var(--font-size-h1);
+    width: 50%;
+
+    &:focus {
+        border-color: var(--link-color);
+        box-shadow: var(--glow);
+        outline: none;
+    }
+
+    @media (max-width: 768px) {
+        width: 90%;
+    }
+}
+
+.search-form__reset {
+    background-color: var(--bg-special);
+    border: none;
+    border-radius: var(--border-radius-max);
+    box-shadow: var(--shadow-default);
+    color: var(--text-color);
+    font-size: var(--font-size-default);
+    font-weight: bold;
+    padding: 0.1rem 0.5rem 0.3rem 0.5rem;
+
+    &:hover {
+        background-color: var(--link-hover);
+        color: var(--bg-main);
+        cursor: pointer;
+    }
+}
+
+.search-input {
+    width: 30vw;
+
+    @media (max-width: 768px) {
+        width: 100vw;
+    }
+}
+
+.search-results__count {
+    font-weight: bold;
+    margin: var(--margin-padding-Y-default);
+}
+
diff --git a/assets/js/main.js b/assets/js/main.js
index d849b4e..957c9b5 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -1,152 +1,7 @@
-(function () {
-    "use strict";
-
-    // TOGGLE DARK/LIGHT MODE
-    function initThemeToggle() {
-        const rootHtml = document.documentElement;
-        const toggleThemeBtn = document.getElementById("theme-toggle");
-
-        // If no saved theme, determine user preference, otherwise default to light
-        const savedTheme = localStorage.getItem("theme");
-        const prefersDark = window.matchMedia("(prefers-color-scheme: dark)").matches;
-        const initialTheme = savedTheme ?? (prefersDark ? "dark" : "light");
-
-        function setTheme(theme) {
-            const isDarkMode = theme === "dark";
-            // toggleThemeBtn dataset comes with translated labels for site's language
-            const label = isDarkMode ? toggleThemeBtn.dataset.labelLight : toggleThemeBtn.dataset.labelDark;
-
-            rootHtml.setAttribute("data-theme", theme);
-            toggleThemeBtn.setAttribute("aria-label", label); // display handled by CSS
-        }
-
-        // Apply initial theme
-        setTheme(initialTheme);
-
-        // Change theme on click and save user's choice
-        toggleThemeBtn.addEventListener("click", () => {
-            const newTheme = rootHtml.getAttribute("data-theme") === "dark" ? "light" : "dark";
-            setTheme(newTheme);
-            localStorage.setItem("theme", newTheme);
-        });
-    }
-
-    // SEARCH
-    function initSearch() {
-        const input = document.getElementById("search-input");
-        const resetBtn = document.getElementById("search-reset");
-        const resultsCount = document.querySelector(".search-results__count");
-        const resultsList = document.querySelector(".search-results__list");
-        const template = document.getElementById("search-result-template");
-
-        // Only initialize search on the search page
-        if (!input || !template) return;
-
-        let allPosts = [];
-        let searchTimeout;
-
-        // Get JSON file with data of all posts
-        fetch(input.dataset.indexUrl ?? "/index.json")
-            .then((res) => res.json())
-            .then((data) => allPosts = data)
-            .catch((err) => console.error("Search index.json failed to load", err));
-
-        function clearResults() {
-            resultsCount.hidden = true;
-            resultsList.innerHTML = "";
-            resultsList.hidden = true;
-        }
-
-        function renderSearchResults(matches) {
-            clearResults();
-
-            // Display how many results found for query
-            resultsCount.hidden = false;
-            resultsCount.querySelector("#search-results-number").textContent = String(matches.length ?? 0);
-
-            // No posts matching query found
-            if (!matches.length) return;
-
-            // Hydrate post-card list item(s) from the template with JSON data
-            matches.forEach((post) => {
-                const li = template.content.firstElementChild.cloneNode(true);
-
-                const link = li.querySelector(".post-card__link");
-                link.href = post.url;
-                link.innerHTML = post.title;
-
-		const section = li.querySelector(".post-card__section-badge");
-		if (section) section.textContent = post.section;
-
-                const date = li.querySelector(".post-card__publish-date");
-                date.textContent = new Date(post.date).toLocaleDateString();
-                date.setAttribute("datetime", post.date);
-
-                const summary = li.querySelector(".post-card__summary");
-                if (summary) summary.textContent = post.summary;
-
-                const tagsList = li.querySelector(".post-card__tags-list");
-                if (tagsList) {
-                    tagsList.innerHTML = "";
-                    if (post.tags && post.tags.length) {
-                        post.tags.slice(0, 3).forEach((tag) => {
-                            const liTag = document.createElement("li");
-                            liTag.className = "post-card__tags-item";
-                            liTag.textContent = `#${tag}`;
-                            tagsList.appendChild(liTag);
-                        });
-
-                        if (post.tags.length > 3) {
-                            const more = document.createElement("li");
-                            more.className = "post-card__tags-item post-card__tags-more";
-                            more.textContent = `+${post.tags.length - 3}`;
-                            tagsList.appendChild(more);
-                        }
-                    }
-                }
-
-                resultsList.appendChild(li);
-                resultsList.hidden = false;
-            });
-        }
-
-        // Filter all posts for ones matching the user's search query
-        function searchPosts(query) {
-            const normalizedQuery = query.trim().toLowerCase();
-
-            // Only search if user entered at least 3 chars
-            if (normalizedQuery.length < 3) {
-                clearResults();
-                return;
-            }
-
-            const matches = allPosts.filter((post) => (
-                post.title.toLowerCase().includes(normalizedQuery) ||
-                (post.summary && post.summary.toLowerCase().includes(normalizedQuery))
-            ));
-
-            // At least 1 post matching query found
-            renderSearchResults(matches);
-        }
-
-        input.addEventListener("input", (event) => {
-            // Debounce search
-            clearTimeout(searchTimeout);
-            searchTimeout = setTimeout(() => {
-                searchPosts(event.target.value);
-            }, 300);
-        });
-
-        resetBtn.addEventListener("click", () => {
-            input.value = "";
-            input.focus();
-            clearResults();
-        });
-
-        // Focus input on page load - it's what the user is here for
-        input.focus();
-    }
+import initThemeToggle from "./theme.js";
+import initSearch from "./search.js";
 
+(function () {
     initThemeToggle();
     initSearch();
 })();
diff --git a/assets/js/search.js b/assets/js/search.js
new file mode 100644
index 0000000..f10695a
--- /dev/null
+++ b/assets/js/search.js
@@ -0,0 +1,118 @@
+/* Search Entire Site for Content */
+function initSearch() {
+    const input = document.getElementById("search-input");
+    const resetBtn = document.getElementById("search-reset");
+    const resultsCount = document.querySelector(".search-results__count");
+    const resultsList = document.querySelector(".search-results__list");
+    const template = document.getElementById("search-result-template");
+
+    // Only initialize search on the search page
+    if (!input || !template) return;
+
+    let allPosts = [];
+    let searchTimeout;
+
+    // Get JSON file with data of all posts
+    fetch(input.dataset.indexUrl ?? "/index.json")
+        .then((res) => res.json())
+        .then((data) => allPosts = data)
+        .catch((err) => console.error("Search index.json failed to load.", err));
+
+    function clearResults() {
+        resultsCount.hidden = true;
+        resultsList.innerHTML = "";
+        resultsList.hidden = true;
+    }
+
+    function renderSearchResults(matches) {
+        clearResults();
+
+        // Display how many results found for query
+        resultsCount.hidden = false;
+        resultsCount.querySelector("#search-results-number").textContent = String(matches.length ?? 0);
+
+        // No posts matching query found
+        if (!matches.length) return;
+
+        // Hydrate post-card list item(s) from the template with JSON data
+        matches.forEach((post) => {
+            const li = template.content.firstElementChild.cloneNode(true);
+
+            const link = li.querySelector(".post-card__link");
+            link.href = post.url;
+            link.innerHTML = post.title;
+
+            const section = li.querySelector(".post-card__section-badge");
+            if (section) section.textContent = post.section;
+
+            const date = li.querySelector(".post-card__publish-date");
+            date.textContent = new Date(post.date).toLocaleDateString();
+            date.setAttribute("datetime", post.date);
+
+            const summary = li.querySelector(".post-card__summary");
+            if (summary) summary.textContent = post.summary;
+
+            const tagsList = li.querySelector(".post-card__tags-list");
+            if (tagsList) {
+                tagsList.innerHTML = "";
+                if (post.tags && post.tags.length) {
+                    post.tags.slice(0, 3).forEach((tag) => {
+                        const liTag = document.createElement("li");
+                        liTag.className = "post-card__tags-item";
+                        liTag.textContent = `#${tag}`;
+                        tagsList.appendChild(liTag);
+                    });
+
+                    if (post.tags.length > 3) {
+                        const more = document.createElement("li");
+                        more.className = "post-card__tags-item post-card__tags-more";
+                        more.textContent = `+${post.tags.length - 3}`;
+                        tagsList.appendChild(more);
+                    }
+                }
+            }
+
+            resultsList.appendChild(li);
+            resultsList.hidden = false;
+        });
+    }
+
+    // Filter all posts for matches with the user's search query
+    function searchPosts(query) {
+        const normalizedQuery = query.trim().toLowerCase();
+
+        // Only search if user entered at least 3 chars
+        if (normalizedQuery.length < 3) {
+            clearResults();
+            return;
+        }
+
+        const matches = allPosts.filter((post) => (
+            post.title.toLowerCase().includes(normalizedQuery) ||
+            (post.summary && post.summary.toLowerCase().includes(normalizedQuery))
+        ));
+
+        // At least 1 post matching query found
+        renderSearchResults(matches);
+    }
+
+    input.addEventListener("input", (event) => {
+        clearTimeout(searchTimeout);
+        // Debounce search
+        searchTimeout = setTimeout(() => {
+            searchPosts(event.target.value);
+        }, 300);
+    });
+
+    resetBtn.addEventListener("click", () => {
+        input.value = "";
+        input.focus();
+        clearResults();
+    });
+
+    // Focus input on page load - it's what the user is here for
+    input.focus();
+}
+
+export default initSearch;
+
diff --git a/assets/js/theme.js b/assets/js/theme.js
new file mode 100644
index 0000000..36896c9
--- /dev/null
+++ b/assets/js/theme.js
@@ -0,0 +1,32 @@
+/* Toggle Dark/Light Mode */
+function initThemeToggle() {
+    const rootHtml = document.documentElement;
+    const toggleThemeBtn = document.getElementById("theme-toggle");
+
+    // If no saved theme, determine user preference, otherwise default to light
+    const savedTheme = localStorage.getItem("theme");
+    const prefersDark = window.matchMedia("(prefers-color-scheme: dark)").matches;
+    const initialTheme = savedTheme ?? (prefersDark ? "dark" : "light");
+
+    function setTheme(theme) {
+        const isDarkMode = theme === "dark";
+        // toggleThemeBtn dataset comes with translated labels for site's language
+        const label = isDarkMode ? toggleThemeBtn.dataset.labelLight : toggleThemeBtn.dataset.labelDark;
+
+        rootHtml.setAttribute("data-theme", theme);
+        toggleThemeBtn.setAttribute("aria-label", label); // display handled by CSS
+    }
+
+    // Apply initial theme
+    setTheme(initialTheme);
+
+    // Change theme on click and save user's choice
+    toggleThemeBtn.addEventListener("click", () => {
+        const newTheme = rootHtml.getAttribute("data-theme") === "dark" ? "light" : "dark";
+        setTheme(newTheme);
+        localStorage.setItem("theme", newTheme);
+     });
+}
+
+export default initThemeToggle;
+