I've updated the header implementation to properly handle heights and scroll margins:

Changed header height to be explicitly set using CSS variable --header-height instead of being determined by padding
Set responsive header heights:
Default: 100px
Mobile (480px): 80px
Small Mobile (320px): 60px
Ensured scroll-margin-top on headings uses the same --header-height variable
Main content padding-top uses the same --header-height variable
These changes ensure consistent header heights across all screen sizes and proper scroll positioning for anchor links.

public/css/base.css

@@ -20,6 +20,10 @@ body {
     will-change: background-color, color;
 }
 
+h1, h2, h3 {
+    scroll-margin-top: var(--header-height);
+}
+
 h1 {
     font-size: 2rem;
     margin-bottom: var(--spacing-lg);

public/css/header.css

@@ -4,14 +4,13 @@ header {
     width: 100%;
     background: linear-gradient(90deg, var(--header-gradient-1), var(--header-gradient-2));
     backdrop-filter: blur(10px);
-    padding: 0.5rem var(--spacing-md);
+    height: var(--header-height);
     z-index: 1000;
     border-bottom: 1px solid var(--border-color);
     left: 0;
     right: 0;
     box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
     transition: var(--theme-transition), transform 0.7s ease, box-shadow 0.7s ease;
-    max-height: var(--header-height);
     transform: var(--gpu-accelerated);
 }
 
@@ -22,6 +21,7 @@ header {
     max-width: 1100px;
     margin: 0 auto;
     padding: 0 var(--spacing-md);
+    height: 100%;
 }
 
 .logo-container {
@@ -58,7 +58,7 @@ header {
     padding: 0.5rem 0.8rem;
     border-radius: var(--border-radius);
     position: relative;
-    background-color: rgba(var(--bg-hover-nav), 0.4);
+    background-color: rgba(var(--bg-hover-nav));
     letter-spacing: 0.3px;
 }
 

public/css/responsive.css

@@ -5,7 +5,7 @@
     }
 
     header {
-        padding: 1rem;
+        height: var(--header-height);
     }
 
     .logo-text {
@@ -59,11 +59,11 @@
     .nav-menu {
         display: none;
         position: fixed;
-        top: 55px;
+        top: var(--header-height);
         left: 0;
         right: 0;
         background: var(--bg-card);
-        min-height: calc(100vh - 55px);
+        min-height: calc(100vh - var(--header-height));
         flex-direction: column;
         align-items: center;
         border-bottom: 1px solid var(--border-color);
@@ -98,13 +98,16 @@
 
 /* Mobile Devices */
 @media (max-width: 480px) {
+    :root {
+        --header-height: 80px;
+    }
+
     .container {
         padding: 0 1rem;
     }
 
     header {
-        padding: 0.75rem;
+        height: var(--header-height);
-        max-height: 120px;
     }
 
     .logo-text {
@@ -157,18 +160,16 @@
         padding: 1.5rem;
         margin: 0;
     }
-
-    .nav-menu {
-        top: 50px;
-        min-height: calc(100vh - 50px);
-    }
 }
 
 /* Small Mobile Devices */
 @media (max-width: 320px) {
+    :root {
+        --header-height: 60px;
+    }
+
     header {
-        padding: 0.5rem;
+        height: var(--header-height);
-        max-height: 100px;
     }
 
     .logo-text {

public/css/variables.css

@@ -13,8 +13,8 @@
     --header-gradient-1: rgba(237, 237, 237, 0.9);
     --header-gradient-2: rgba(228, 228, 228, 0.9);
     --border-color: rgba(58, 123, 224, 0.1);
-    --bg-hover-rgb: 228, 228, 228;
+    --bg-hover-rgb: 237, 237, 237;
-    --bg-hover-nav: 241, 241, 241;
+    --bg-hover-nav: 207, 207, 207;
 }
 
 [data-theme="dark"] {
@@ -36,7 +36,7 @@
     --spacing-xl: 2rem;
     --border-radius: 8px;
     --transition-speed: 0.3s;
-    --header-height: 140px;
+    --header-height: 100px;
     
     /* Theme transition with GPU acceleration */
     --theme-transition: color var(--transition-speed) ease,