fix: optimize CSS

assets/css/intro.css

@@ -0,0 +1,58 @@
+.Intro {
+    background-image: radial-gradient(circle at -50vw -50vh, rgba(255,145,0,0.2) 0%, rgba(0,0,0,0) 63%, rgba(0,0,0,0) 100%);
+    background-repeat: no-repeat;
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+
+    .intro-img {
+        width: 750px;
+        display: flex;
+        position: absolute;
+        bottom: 0;
+        right: 0;
+
+        img {
+            transition: 250ms;
+            position: relative;
+            width: 100%;
+        }
+    }
+
+    .intro-text {
+        height: 100%;
+        justify-content: center;
+        z-index: 1;
+
+        .fulltext {
+            color: var(--color-white);
+        }
+    }
+}
+
+@media (width <= 430px) {
+    .Intro {
+        .intro-img{
+            width: 430px;
+        }
+    }
+}
+
+@media (width < 900px) {
+    .Intro {
+        grid-template-columns: 1fr;
+
+        & .intro-text, & .intro-img {
+            grid-column-start: 1;
+        }
+
+        & .intro-text,
+        & h2{
+            align-items: center;
+            text-align: center;
+        }
+
+        & .intro-img img {
+            filter: brightness(.5);
+        }
+    }
+}