merge changes from main & add proper mobile support

header.css

@@ -0,0 +1,71 @@
+:root {
+    --cap-y-offset: 3px; 
+}
+
+#header-container {
+    width: 100%;
+    display: flex;
+    justify-content: center;
+    margin-bottom: 60px; 
+    padding: 0;
+}
+
+.header {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    width: 100%;
+    margin: 0;
+    padding: 0;
+    position: relative;
+    height: 100px; 
+}
+
+.header .logo {
+    width: 300px; 
+    height: auto;
+    display: block;
+    position: relative;
+    z-index: 5;
+}
+
+.header::before {
+    content: "";
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background-color: #000;
+    z-index: 1;
+}
+
+.header-end-cap {
+    width: 100%;
+    height: auto;
+    display: block;
+    position: absolute;
+    top: 100%; 
+    left: 0;
+    transform: translateY(calc(-50% + var(--cap-y-offset)));
+    z-index: 4;
+}
+
+@media screen and (max-width: 768px) {
+    .header {
+        height: 90px;
+    }
+
+    .header .logo {
+        width: 260px;
+    }
+
+    #header-container {
+        margin-bottom: 50px; 
+    }
+
+    .header-end-cap {
+        width: 100% !important;
+        min-width: 100%;
+    }
+}