style: comprehensive UI refresh for landing page and docs

WIP: Major design update with modern styling.

Landing page:
- Added gradient backgrounds with RGBA color system
- Updated header and navigation layout
- Improved feature panels and mobile responsiveness
- Udated logos and graphics

Documentation UI:
- Enhanced Antora theme with blurred, gradient, backgrounds
- Restructured CSS architecture (vars.css, base.css, site.css)
- Better typography and color system
- Improved overall readability

Author: julioest

README.adoc

@@ -1,6 +1,6 @@
 = MrDocs
 
-image::docs/modules/ROOT/images/MrDocsBanner.jpg[Mr. Docs Documentation,link=https://www.mrdocs.com]
+image::docs/modules/ROOT/images/MrDocsBanner.png[Mr. Docs Documentation,link=https://www.mrdocs.com]
 
 Visit the Mr. Docs Documentation website at https://www.mrdocs.com.
 

docs/modules/ROOT/images/MrDocsBanner.png

@@ -6,7 +6,7 @@ Alan Freitas <[email protected]>
 :page-tags: mrdocs
 :navtitle: Home
 
-image::MrDocsBanner.jpg[link=https://www.mrdocs.com]
+image::MrDocsBanner.png[link=https://www.mrdocs.com]
 
 - Automating {cpp} reference documentation significantly enhances usability by providing a navigable API and ensuring a single, up-to-date source of truth with minimal effort.
 - However, documenting {cpp} poses significant challenges due to discrepancies between the codebase and the public API. Doxygen remains a popular tool, yet it is suboptimal for {cpp} as it fails to fully comprehend {cpp} constructs and requires many transformation steps, including the incorporation of many macros within the {cpp} code. These macros maintain well-formed and ill-formed versions of the code, undermining the goal of unifying the source of truth.

docs/modules/ROOT/pages/index.adoc

@@ -0,0 +1,38 @@
+/* =========================== 
+   Shared Logo Styles
+=========================== */
+
+/* Logo Styles */
+.nav .logo-link, .navbar-brand .navbar-item:first-child {
+    display: flex;
+    align-items: center;
+    gap: 0.25rem;
+    text-decoration: none;
+}
+
+.nav .logo-link:hover {
+    opacity: 0.8;
+    text-decoration: none;
+}
+
+.nav .logo-link svg, .navbar-brand .navbar-item:first-child svg {
+    height: 48px;
+    width: auto;
+    flex-shrink: 0;
+}
+
+.nav .logo-text, .navbar-brand .navbar-item:first-child .logo-text {
+    font-weight: 700;
+    color: #fff;
+    white-space: nowrap;
+}
+
+@media (max-width: 576px) {
+    .nav .logo-link svg {
+        height: 28px;
+    }
+    
+    .nav .logo-link {
+        gap: 0.5rem;
+    }
+}

docs/shared/logo.css

@@ -1,7 +1,7 @@
 antoraVersion: '1.0.0'
 site:
   url: http://localhost:5252
-  title: Brand Docs
+  title: MrDocs
   homeUrl: &home_url /xyz/5.2/index.html
   components:
   - name: abc

docs/ui/preview-src/ui-model.yml

@@ -9,6 +9,16 @@ html {
   font-size: var(--body-font-size);
   height: 100%;
   scroll-behavior: smooth;
+  background:
+    radial-gradient(ellipse 100% 100% at var(--x1) var(--y1), rgba(89, 36, 99, 0.8), transparent 50%),
+    radial-gradient(ellipse 80% 120% at var(--x2) var(--y2), rgba(138, 214, 236, 0.5), transparent 55%),
+    radial-gradient(ellipse 150% 90% at var(--x3) var(--y3), rgba(40, 98, 114, 0.6), transparent 65%),
+    radial-gradient(ellipse 100% 100% at 80% 100%, rgba(89, 36, 99, 0.8), transparent 60%),
+    linear-gradient(135deg, #124b83, #124b83, #124b83);
+  background-attachment: fixed;
+  background-blend-mode: screen;
+  background-size: cover;
+  background-repeat: no-repeat;
 }
 
 @media screen and (min-width: 1024px) {
@@ -18,13 +28,14 @@ html {
 }
 
 body {
-  background: var(--body-background);
+  /* Remove the solid background since we're using gradient on html */
+  /* background: var(--body-background); */
   color: var(--body-font-color);
   font-family: var(--body-font-family);
   line-height: var(--body-line-height);
   margin: 0;
   tab-size: 4;
-  word-wrap: anywhere; /* aka overflow-wrap; used when hyphens are disabled or aren't sufficient */
+  word-wrap: anywhere;
 }
 
 a {

docs/ui/src/css/base.css

@@ -0,0 +1,85 @@
+/* Inherits styles from landing page */
+
+.dotted {
+  background-image: url("../../../../docs/website/assets/halftone.png");
+  background-size: 158%;
+  background-repeat: repeat-y;
+  background-position: center center;
+  width: 190px;
+  height: 100vh;
+  position: fixed;
+  left: 0;
+  opacity: 0.1;
+  top: 0;
+  z-index: -5;
+  pointer-events: none;
+}
+
+.dotted-right {
+  background-image: url("../../../../docs/website/assets/halftone.png");
+  background-size: 158%;
+  transform: rotate(180deg);
+  background-repeat: repeat-y;
+  background-position: center center;
+  width: 190px;
+  height: 100vh;
+  position: fixed;
+  right: 0;
+  opacity: 0.1;
+  top: 0;
+  z-index: -5;
+  pointer-events: none;
+}
+
+@media (max-width: 576px) {
+  .dotted,
+  .dotted-right {
+    opacity: 0.05;
+  }
+
+  .dotted {
+    left: -80px;
+  }
+
+  .dotted-right {
+    right: -80px;
+  }
+}
+
+.doc {
+  color: var(--navbar-font-color);
+}
+
+.body .article {
+  backdrop-filter: blur(10px);
+  background-color: rgba(255, 255, 255, 0.1);
+}
+
+.doc h1,
+.doc h2,
+.doc h3,
+.doc h4,
+.doc h5,
+.doc h6 {
+  color: var(--navbar-font-color);
+}
+
+.toc.sidebar .toc-menu {
+  color: var(--navbar-font-color);
+}
+
+.toc.sidebar .toc-menu h3 {
+  color: var(--navbar-font-color);
+}
+
+.breadcrumbs li {
+  color: var(--color-white-50);
+}
+
+.toc .toc-menu a.is-active {
+  color: var(--color-white-50);
+}
+
+.nav-text {
+  color: var(--color-white-50);
+}

docs/ui/src/css/custom.css

@@ -9,7 +9,8 @@ body {
 }
 
 .navbar {
-  background: var(--navbar-background);
+  background-color: rgba(0, 0, 0, 0.2);
+  backdrop-filter: blur(10px);
   color: var(--navbar-font-color);
   font-size: calc(16 / var(--rem-base) * 1rem);
   height: var(--navbar-height);

docs/ui/src/css/header.css

@@ -5,6 +5,8 @@
 }
 
 .nav-container {
+  background-color: rgba(255, 255, 255, 0.1);
+  backdrop-filter: blur(10px);
   position: fixed;
   top: var(--navbar-height);
   left: 0;
@@ -35,7 +37,7 @@
 }
 
 .nav {
-  background: var(--nav-background);
+  /* background: var(--nav-background); */
   position: relative;
   top: var(--toolbar-height);
   height: var(--nav-height);
@@ -57,13 +59,14 @@
 }
 
 .nav a {
-  color: inherit;
+  color: var(--color-white);
 }
 
 .nav .panels {
   display: flex;
   flex-direction: column;
   height: inherit;
+  background-color: rgba(255, 255, 255, 0.1);
 }
 
 .nav-panel-menu {
@@ -183,7 +186,7 @@
 }
 
 .nav-panel-explore {
-  background: var(--nav-background);
+  background: rgba(255, 255, 255, 0.3);
   display: flex;
   flex-direction: column;
   position: absolute;
@@ -201,7 +204,7 @@
 .nav-panel-explore .context {
   font-size: calc(15 / var(--rem-base) * 1rem);
   flex-shrink: 0;
-  color: var(--nav-muted-color);
+  color: var(--color-white);
   box-shadow: 0 -1px 0 var(--nav-panel-divider-color);
   padding: 0 0.5rem;
   display: flex;

docs/ui/src/css/nav.css

@@ -11,7 +11,7 @@
 }
 
 .page-versions .version-menu-toggle {
-  color: inherit;
+  color: var(--color-white);
   background: url(../img/chevron.svg) no-repeat;
   background-position: right 0.5rem top 50%;
   background-size: auto 0.75em;