diff --git a/assets/js/theme.js b/assets/js/theme.js
new file mode 100644
index 0000000..be17dc9
--- /dev/null
+++ b/assets/js/theme.js
@@ -0,0 +1,9 @@
+// for now this is assuming default theme is set to dark
+// will probably refactor in the future for much better handling
+function loadPreferredTheme() {
+    if (localStorage.getItem("pref-theme") === "light") {
+        document.body.classList.remove('dark')
+    }
+}
+
+loadPreferredTheme();
\ No newline at end of file
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
new file mode 100644
index 0000000..b25f852
--- /dev/null
+++ b/layouts/partials/header.html
@@ -0,0 +1,118 @@
+{{- /* theme.js */}}
+{{- if not site.Params.disableThemeToggle }}
+{{- $theme := resources.Get "js/theme.js" | resources.Minify }}
+{{- if not site.Params.assets.disableFingerprinting }}
+{{- $theme_js := (slice $theme) | resources.Concat "assets/js/theme.js" | fingerprint }}
+<script crossorigin="anonymous" src="{{ $theme_js.RelPermalink }}" integrity="{{ $theme_js.Data.Integrity }}"></script>
+{{- else }}
+{{- $theme_js := (slice $theme) | resources.Concat "assets/js/theme.js" }}
+<script crossorigin="anonymous" src="{{ $theme_js.RelPermalink }}"></script>
+{{- end }}
+{{- end }}
+
+<header class="header">
+    <nav class="nav">
+        <div class="logo">
+            {{- $label_text := (site.Params.label.text | default site.Title) }}
+            {{- if site.Title }}
+            <a href="{{ "" | absLangURL }}" accesskey="h" title="{{ $label_text }} (Alt + H)">
+                {{- if site.Params.label.icon }}
+                {{- $img := resources.Get site.Params.label.icon }}
+                {{- if $img }}
+                    {{- $processableFormats := (slice "jpg" "jpeg" "png" "tif" "bmp" "gif") -}}
+                    {{- if hugo.IsExtended -}}
+                        {{- $processableFormats = $processableFormats | append "webp" -}}
+                    {{- end -}}
+                    {{- $prod := (hugo.IsProduction | or (eq site.Params.env "production")) }}
+                    {{- if and (in $processableFormats $img.MediaType.SubType) (eq $prod true)}}
+                        {{- if site.Params.label.iconHeight }}
+                            {{- $img = $img.Resize (printf "x%d" site.Params.label.iconHeight) }}
+                        {{ else }}
+                            {{- $img = $img.Resize "x30" }}
+                        {{- end }}
+                    {{- end }}
+                    <img src="{{ $img.Permalink }}" alt="" aria-label="logo"
+                        height="{{- site.Params.label.iconHeight | default "30" -}}">
+                {{- else }}
+                <img src="{{- site.Params.label.icon | absURL -}}" alt="" aria-label="logo"
+                    height="{{- site.Params.label.iconHeight | default "30" -}}">
+                {{- end -}}
+                {{- end -}}
+                {{- $label_text -}}
+            </a>
+            {{- end }}
+            <div class="logo-switches">
+                {{- if (not site.Params.disableThemeToggle) }}
+                <button id="theme-toggle" accesskey="t" title="(Alt + T)">
+                    <svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24"
+                        fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                        stroke-linejoin="round">
+                        <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
+                    </svg>
+                    <svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="18" viewBox="0 0 24 24"
+                        fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"
+                        stroke-linejoin="round">
+                        <circle cx="12" cy="12" r="5"></circle>
+                        <line x1="12" y1="1" x2="12" y2="3"></line>
+                        <line x1="12" y1="21" x2="12" y2="23"></line>
+                        <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
+                        <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
+                        <line x1="1" y1="12" x2="3" y2="12"></line>
+                        <line x1="21" y1="12" x2="23" y2="12"></line>
+                        <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
+                        <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
+                    </svg>
+                </button>
+                {{- end }}
+
+                {{- $lang := .Lang}}
+                {{- $separator := or $label_text (not site.Params.disableThemeToggle)}}
+                {{- with site.Home.AllTranslations }}
+                <ul class="lang-switch">
+                    {{- if $separator }}<li>|</li>{{ end }}
+                    {{- range . -}}
+                    {{- if ne $lang .Lang }}
+                    <li>
+                        <a href="{{- .Permalink -}}" title="{{ .Language.Params.languageAltTitle | default (.Language.LanguageName | emojify) | default (.Lang | title) }}"
+                            aria-label="{{ .Language.LanguageName | default (.Lang | title) }}">
+                            {{- if (and site.Params.displayFullLangName (.Language.LanguageName)) }}
+                            {{- .Language.LanguageName | emojify -}}
+                            {{- else }}
+                            {{- .Lang | title -}}
+                            {{- end -}}
+                        </a>
+                    </li>
+                    {{- end -}}
+                    {{- end}}
+                </ul>
+                {{- end }}
+            </div>
+        </div>
+        {{- $currentPage := . }}
+        <ul id="menu">
+            {{- range site.Menus.main }}
+            {{- $menu_item_url := (cond (strings.HasSuffix .URL "/") .URL (printf "%s/" .URL) ) | absLangURL }}
+            {{- $page_url:= $currentPage.Permalink | absLangURL }}
+            {{- $is_search := eq (site.GetPage .KeyName).Layout `search` }}
+            <li>
+                <a href="{{ .URL | absLangURL }}" title="{{ .Title | default .Name }} {{- cond $is_search (" (Alt + /)" | safeHTMLAttr) ("" | safeHTMLAttr ) }}"
+                {{- cond $is_search (" accesskey=/" | safeHTMLAttr) ("" | safeHTMLAttr ) }}>
+                    <span {{- if eq $menu_item_url $page_url }} class="active" {{- end }}>
+                        {{- .Pre }}
+                        {{- .Name -}}
+                        {{ .Post -}}
+                    </span>
+                    {{- if (findRE "://" .URL) }}&nbsp;
+                    <svg fill="none" shape-rendering="geometricPrecision" stroke="currentColor" stroke-linecap="round"
+                        stroke-linejoin="round" stroke-width="2.5" viewBox="0 0 24 24" height="12" width="12">
+                        <path d="M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6"></path>
+                        <path d="M15 3h6v6"></path>
+                        <path d="M10 14L21 3"></path>
+                    </svg>
+                    {{- end }}
+                </a>
+            </li>
+            {{- end }}
+        </ul>
+    </nav>
+</header>