diff --git a/assets/App.vue b/assets/App.vue
index 8b1245d8..84ea718d 100644
--- a/assets/App.vue
+++ b/assets/App.vue
@@ -3,6 +3,7 @@
 </template>
 
 <script lang="ts" setup>
+const mode = useColorMode();
 watchEffect(() => {
   if (smallerScrollbars.value) {
     document.documentElement.classList.add("has-custom-scrollbars");
@@ -10,16 +11,11 @@ watchEffect(() => {
     document.documentElement.classList.remove("has-custom-scrollbars");
   }
 
-  switch (lightTheme.value) {
-    case "dark":
-      document.documentElement.setAttribute("data-theme", "dark");
-      break;
-    case "light":
-      document.documentElement.setAttribute("data-theme", "light");
-      break;
-    default:
-      document.documentElement.removeAttribute("data-theme");
+  let theme = lightTheme.value;
+  if (theme === "auto") {
+    theme = mode.value;
   }
+  document.documentElement.setAttribute("data-theme", theme);
 });
 </script>
 <style lang="postcss">
diff --git a/assets/main.css b/assets/main.css
index 53dd167d..c9b0a420 100644
--- a/assets/main.css
+++ b/assets/main.css
@@ -1,23 +1,5 @@
 @import "splitpanes/dist/splitpanes.css";
 
-@define-mixin light {
-  --base-lighter-color: 100% 0 0;
-  --base-color: 97% 0 0;
-  --base-darker-color: 90% 0 0;
-  --base-content-color: 33% 0 0;
-  --primary-color: 79.96% 0.143 176.65;
-  --secondary-color: 82.67% 0.15380739746702807 77.82;
-}
-
-@define-mixin dark {
-  --base-lighter-color: 25% 0 0;
-  --base-color: 18% 0 0;
-  --base-darker-color: 11% 0 0;
-  --base-content-color: 89.23% 0 0;
-  --primary-color: 70.96% 0.143 176.65;
-  --secondary-color: 91.36% 0.11098 90.1243;
-}
-
 @tailwind base;
 @tailwind components;
 @tailwind utilities;
@@ -41,21 +23,23 @@
     --n: var(--base-lighter-color);
   }
   html[data-theme="dark"] {
-    @mixin dark;
-  }
-  @media (prefers-color-scheme: dark) {
-    html {
-      @mixin dark;
-    }
+    --base-lighter-color: 25% 0 0;
+    --base-color: 18% 0 0;
+    --base-darker-color: 11% 0 0;
+    --base-content-color: 89.23% 0 0;
+    --primary-color: 70.96% 0.143 176.65;
+    --secondary-color: 91.36% 0.11098 90.1243;
   }
+
   html[data-theme="light"] {
-    @mixin light;
-  }
-  @media (prefers-color-scheme: light) {
-    html {
-      @mixin light;
-    }
+    --base-lighter-color: 100% 0 0;
+    --base-color: 97% 0 0;
+    --base-darker-color: 90% 0 0;
+    --base-content-color: 33% 0 0;
+    --primary-color: 79.96% 0.143 176.65;
+    --secondary-color: 82.67% 0.15380739746702807 77.82;
   }
+
   @media screen and (max-device-width: 480px) {
     body {
       -webkit-text-size-adjust: 100%;
diff --git a/package.json b/package.json
index 195dea8a..2f6583d9 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,6 @@
   "lodash.debounce": "^4.0.8",
   "pinia": "^2.1.7",
   "postcss": "^8.4.35",
-  "postcss-mixins": "^10.0.0",
   "splitpanes": "^3.1.5",
   "tailwindcss": "^3.4.1",
   "unplugin-auto-import": "^0.17.5",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b9cf40e2..c0b0bda1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -89,9 +89,6 @@ dependencies:
   postcss:
     specifier: ^8.4.35
     version: 8.4.35
-  postcss-mixins:
-    specifier: ^10.0.0
-    version: 10.0.0(postcss@8.4.35)
   splitpanes:
     specifier: ^3.1.5
     version: 3.1.5
@@ -3875,19 +3872,6 @@ packages:
       yaml: 2.3.4
     dev: false
 
-  /postcss-mixins@10.0.0(postcss@8.4.35):
-    resolution: {integrity: sha512-CHw+Q8Y7Jz67lqyXbVezvWUsXPVEdPEVLKFb0u8hSRKWzdHMIGwwkZDf17tgAmFOYyoM529WyctZ1sNuVjZ9DQ==}
-    engines: {node: ^18.0 || >= 20.0}
-    peerDependencies:
-      postcss: ^8.2.14
-    dependencies:
-      fast-glob: 3.3.2
-      postcss: 8.4.35
-      postcss-js: 4.0.1(postcss@8.4.35)
-      postcss-simple-vars: 7.0.1(postcss@8.4.35)
-      sugarss: 4.0.1(postcss@8.4.35)
-    dev: false
-
   /postcss-nested@6.0.1(postcss@8.4.35):
     resolution: {integrity: sha512-mEp4xPMi5bSWiMbsgoPfcP74lsWLHkQbZc3sY+jWYd65CUwXrUaTp0fmNpa01ZcETKlIgUdFN/MpS2xZtqL9dQ==}
     engines: {node: '>=12.0'}
@@ -3914,15 +3898,6 @@ packages:
       util-deprecate: 1.0.2
     dev: false
 
-  /postcss-simple-vars@7.0.1(postcss@8.4.35):
-    resolution: {integrity: sha512-5GLLXaS8qmzHMOjVxqkk1TZPf1jMqesiI7qLhnlyERalG0sMbHIbJqrcnrpmZdKCLglHnRHoEBB61RtGTsj++A==}
-    engines: {node: '>=14.0'}
-    peerDependencies:
-      postcss: ^8.2.1
-    dependencies:
-      postcss: 8.4.35
-    dev: false
-
   /postcss-value-parser@4.2.0:
     resolution: {integrity: sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==}
     dev: false
@@ -4386,15 +4361,6 @@ packages:
       ts-interface-checker: 0.1.13
     dev: false
 
-  /sugarss@4.0.1(postcss@8.4.35):
-    resolution: {integrity: sha512-WCjS5NfuVJjkQzK10s8WOBY+hhDxxNt/N6ZaGwxFZ+wN3/lKKFSaaKUNecULcTTvE4urLcKaZFQD8vO0mOZujw==}
-    engines: {node: '>=12.0'}
-    peerDependencies:
-      postcss: ^8.3.3
-    dependencies:
-      postcss: 8.4.35
-    dev: false
-
   /supports-color@7.2.0:
     resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==}
     engines: {node: '>=8'}
diff --git a/postcss.config.cjs b/postcss.config.cjs
index 3b03a395..cbfea5ea 100644
--- a/postcss.config.cjs
+++ b/postcss.config.cjs
@@ -1,6 +1,5 @@
 module.exports = {
   plugins: {
-    "postcss-mixins": {},
     "tailwindcss/nesting": {},
     tailwindcss: {},
     autoprefixer: {},