Update version to v0.1.2.a.3 and enhance UI/UX features

- Updated version number in version.txt.
- Improved smooth scrolling for anchor links in script.js.
- Added Intersection Observer for fade-in animations in script.js.
- Enhanced CSS styles for various elements, including buttons, metrics, and backgrounds for better visual appeal and interactivity.

styles.css

@@ -4,12 +4,14 @@
   --bg: #05060a;
   --bg-alt: #0e1018;
   --card: #121422;
-  --card-border: rgba(255, 255, 255, 0.08);
+  --card-border: rgba(255, 255, 255, 0.12);
   --text: #f5f6fd;
   --muted: #9aa2c4;
   --accent: #4dd5ff;
   --accent-strong: #6d84ff;
+  --accent-glow: rgba(77, 213, 255, 0.4);
   --shadow: 0 18px 45px rgba(4, 6, 11, 0.6);
+  --shadow-glow: 0 0 30px rgba(77, 213, 255, 0.2);
 }
 
 *,
@@ -18,15 +20,43 @@
   box-sizing: border-box;
 }
 
+html {
+  scroll-behavior: smooth;
+}
+
 body {
   margin: 0;
   min-height: 100vh;
-  background: radial-gradient(circle at top, rgba(77, 213, 255, 0.12), transparent 55%),
-              radial-gradient(circle at 20% 20%, rgba(109, 132, 255, 0.25), transparent 35%),
-              var(--bg);
+  background: 
+    radial-gradient(circle at 0% 0%, rgba(77, 213, 255, 0.15), transparent 50%),
+    radial-gradient(circle at 100% 0%, rgba(109, 132, 255, 0.2), transparent 50%),
+    radial-gradient(circle at 50% 100%, rgba(77, 213, 255, 0.08), transparent 60%),
+    var(--bg);
+  background-attachment: fixed;
   color: var(--text);
   font-size: 1rem;
   line-height: 1.6;
+  position: relative;
+  overflow-x: hidden;
+}
+
+body::before {
+  content: '';
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: 
+    radial-gradient(circle at 20% 30%, rgba(77, 213, 255, 0.03), transparent 50%),
+    radial-gradient(circle at 80% 70%, rgba(109, 132, 255, 0.03), transparent 50%);
+  pointer-events: none;
+  z-index: 0;
+}
+
+body > * {
+  position: relative;
+  z-index: 1;
 }
 
 img {
@@ -56,6 +86,27 @@ button:focus-visible {
   display: flex;
   flex-direction: column;
   gap: 2rem;
+  position: relative;
+  overflow: hidden;
+}
+
+.hero::after {
+  content: '';
+  position: absolute;
+  top: -50%;
+  right: -20%;
+  width: 600px;
+  height: 600px;
+  background: radial-gradient(circle, rgba(77, 213, 255, 0.1), transparent 70%);
+  border-radius: 50%;
+  filter: blur(60px);
+  pointer-events: none;
+  animation: pulse 8s ease-in-out infinite;
+}
+
+@keyframes pulse {
+  0%, 100% { transform: scale(1) translate(0, 0); opacity: 0.6; }
+  50% { transform: scale(1.2) translate(-10%, 10%); opacity: 0.8; }
 }
 
 .nav {
@@ -68,6 +119,12 @@ button:focus-visible {
 .brand {
   font-weight: 700;
   letter-spacing: 0.08em;
+  font-size: 1.25rem;
+  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-shadow: 0 0 20px var(--accent-glow);
 }
 
 .nav__links {
@@ -79,14 +136,32 @@ button:focus-visible {
 .nav__links a {
   color: var(--muted);
   font-weight: 500;
-  transition: color 0.2s ease;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
   text-decoration: none;
+  position: relative;
+  padding: 0.5rem 0;
+}
+
+.nav__links a::after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  width: 0;
+  height: 2px;
+  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
+  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  box-shadow: 0 0 10px var(--accent-glow);
 }
 
 .nav__links a:hover {
   color: var(--text);
 }
 
+.nav__links a:hover::after {
+  width: 100%;
+}
+
 .nav__toggle {
   display: none;
   background: none;
@@ -119,6 +194,11 @@ h1 {
   font-size: clamp(2.7rem, 5vw, 4.8rem);
   margin: 0 0 1rem;
   line-height: 1.05;
+  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 50%, var(--accent-strong) 100%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  filter: drop-shadow(0 0 20px rgba(77, 213, 255, 0.3));
 }
 
 h2 {
@@ -149,8 +229,28 @@ h3 {
   border-radius: 999px;
   font-weight: 600;
   cursor: pointer;
-  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
   text-decoration: none;
+  position: relative;
+  overflow: hidden;
+}
+
+.btn::before {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  width: 0;
+  height: 0;
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.2);
+  transform: translate(-50%, -50%);
+  transition: width 0.6s, height 0.6s;
+}
+
+.btn:hover::before {
+  width: 300px;
+  height: 300px;
 }
 
 .btn:focus-visible {
@@ -163,32 +263,51 @@ h3 {
 }
 
 .btn.primary {
-  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
+  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
   color: #05060a;
   border: none;
-  box-shadow: 0 15px 40px rgba(77, 213, 255, 0.3);
+  box-shadow: 0 15px 40px rgba(77, 213, 255, 0.3), 0 0 20px rgba(77, 213, 255, 0.2);
+  z-index: 1;
+}
+
+.btn.primary:hover {
+  transform: translateY(-2px) scale(1.02);
+  box-shadow: 0 20px 50px rgba(77, 213, 255, 0.4), 0 0 30px rgba(77, 213, 255, 0.3);
 }
 
 .btn.ghost {
-  border-color: rgba(255, 255, 255, 0.2);
+  border-color: rgba(255, 255, 255, 0.25);
   color: var(--text);
-  background: transparent;
+  background: rgba(255, 255, 255, 0.03);
+  backdrop-filter: blur(10px);
+  z-index: 1;
 }
 
-.btn:hover {
-  transform: translateY(-1px);
-  box-shadow: 0 12px 30px rgba(109, 132, 255, 0.25);
+.btn.ghost:hover {
+  transform: translateY(-2px);
+  border-color: rgba(77, 213, 255, 0.5);
+  background: rgba(77, 213, 255, 0.1);
+  box-shadow: 0 10px 30px rgba(77, 213, 255, 0.15);
 }
 
 .install-command {
   display: block;
   padding: 1rem 1.25rem;
   border-radius: 0.75rem;
-  background: rgba(18, 20, 34, 0.7);
+  background: rgba(18, 20, 34, 0.8);
   border: 1px solid var(--card-border);
   font-family: 'JetBrains Mono', 'Space Grotesk', monospace;
   font-size: 0.95rem;
   overflow-x: auto;
+  backdrop-filter: blur(10px);
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
+  transition: all 0.3s ease;
+  position: relative;
+}
+
+.install-command:hover {
+  border-color: rgba(77, 213, 255, 0.3);
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px rgba(77, 213, 255, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.1);
 }
 
 .hero__metrics {
@@ -201,7 +320,32 @@ h3 {
   padding: 1.25rem;
   border-radius: 1rem;
   border: 1px solid var(--card-border);
-  background: rgba(5, 6, 10, 0.55);
+  background: rgba(5, 6, 10, 0.6);
+  backdrop-filter: blur(10px);
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+}
+
+.metric::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: -100%;
+  width: 100%;
+  height: 100%;
+  background: linear-gradient(90deg, transparent, rgba(77, 213, 255, 0.1), transparent);
+  transition: left 0.5s ease;
+}
+
+.metric:hover {
+  transform: translateY(-4px);
+  border-color: rgba(77, 213, 255, 0.3);
+  box-shadow: 0 10px 30px rgba(77, 213, 255, 0.15);
+}
+
+.metric:hover::before {
+  left: 100%;
 }
 
 .metric__label {
@@ -239,6 +383,40 @@ h3 {
   background: var(--card);
   box-shadow: var(--shadow);
   min-height: 10rem;
+  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+  backdrop-filter: blur(10px);
+}
+
+.card::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 2px;
+  background: linear-gradient(90deg, transparent, var(--accent), transparent);
+  transform: translateX(-100%);
+  transition: transform 0.6s ease;
+}
+
+.card:hover {
+  transform: translateY(-6px);
+  border-color: rgba(77, 213, 255, 0.4);
+  box-shadow: 0 20px 50px rgba(77, 213, 255, 0.2), var(--shadow);
+}
+
+.card:hover::before {
+  transform: translateX(100%);
+}
+
+.card h3 {
+  transition: color 0.3s ease;
+}
+
+.card:hover h3 {
+  color: var(--accent);
 }
 
 .card p {
@@ -262,10 +440,19 @@ h3 {
   padding: 1.5rem;
   border-radius: 1rem;
   border: 1px solid var(--card-border);
-  background: rgba(5, 6, 10, 0.5);
+  background: rgba(5, 6, 10, 0.6);
+  backdrop-filter: blur(10px);
   counter-increment: install-step;
   position: relative;
   padding-left: 4.5rem;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.install-steps li:hover {
+  transform: translateX(8px);
+  border-color: rgba(77, 213, 255, 0.3);
+  background: rgba(5, 6, 10, 0.7);
+  box-shadow: 0 10px 30px rgba(77, 213, 255, 0.1);
 }
 
 .install-steps li::before {
@@ -281,6 +468,14 @@ h3 {
   display: grid;
   place-items: center;
   font-weight: 600;
+  transition: all 0.3s ease;
+  box-shadow: 0 0 15px rgba(77, 213, 255, 0.3);
+}
+
+.install-steps li:hover::before {
+  background: rgba(77, 213, 255, 0.3);
+  box-shadow: 0 0 25px rgba(77, 213, 255, 0.5);
+  transform: scale(1.1);
 }
 
 .callout {
@@ -289,6 +484,14 @@ h3 {
   border-radius: 1rem;
   background: rgba(255, 196, 87, 0.12);
   border: 1px solid rgba(255, 196, 87, 0.35);
+  backdrop-filter: blur(10px);
+  box-shadow: 0 8px 32px rgba(255, 196, 87, 0.1);
+  transition: all 0.3s ease;
+}
+
+.callout:hover {
+  border-color: rgba(255, 196, 87, 0.5);
+  box-shadow: 0 8px 32px rgba(255, 196, 87, 0.2);
 }
 
 .showcase__grid {
@@ -303,7 +506,33 @@ figure {
   border-radius: 1rem;
   padding: 1rem;
   background: rgba(9, 10, 18, 0.8);
+  backdrop-filter: blur(10px);
   min-height: 15rem;
+  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+}
+
+figure::before {
+  content: '';
+  position: absolute;
+  top: -50%;
+  left: -50%;
+  width: 200%;
+  height: 200%;
+  background: radial-gradient(circle, rgba(77, 213, 255, 0.1), transparent 70%);
+  opacity: 0;
+  transition: opacity 0.4s ease;
+}
+
+figure:hover {
+  transform: translateY(-8px) scale(1.02);
+  border-color: rgba(77, 213, 255, 0.4);
+  box-shadow: 0 20px 50px rgba(77, 213, 255, 0.2);
+}
+
+figure:hover::before {
+  opacity: 1;
 }
 
 figcaption {
@@ -313,22 +542,55 @@ figcaption {
 }
 
 pre {
-  background: rgba(5, 6, 10, 0.65);
+  background: rgba(5, 6, 10, 0.8);
   padding: 1rem;
   border-radius: 0.75rem;
   overflow: auto;
   font-size: 0.85rem;
   line-height: 1.3;
+  border: 1px solid rgba(77, 213, 255, 0.1);
+  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
+  position: relative;
+  backdrop-filter: blur(5px);
+}
+
+pre::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 1px;
+  background: linear-gradient(90deg, transparent, rgba(77, 213, 255, 0.3), transparent);
 }
 
 .statusbar-demo {
   display: flex;
   justify-content: space-between;
-  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
+  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
   color: #05060a;
   padding: 0.65rem 1rem;
   border-radius: 0.5rem;
   font-weight: 600;
+  box-shadow: 0 4px 20px rgba(77, 213, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
+  position: relative;
+  overflow: hidden;
+}
+
+.statusbar-demo::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: -100%;
+  width: 100%;
+  height: 100%;
+  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
+  animation: shimmer 3s infinite;
+}
+
+@keyframes shimmer {
+  0% { left: -100%; }
+  100% { left: 100%; }
 }
 
 .community__actions {
@@ -340,7 +602,7 @@ pre {
 
 .footer {
   padding: 2rem clamp(1.5rem, 5vw, 5rem);
-  border-top: 1px solid rgba(255, 255, 255, 0.08);
+  border-top: 1px solid rgba(255, 255, 255, 0.1);
   display: flex;
   justify-content: space-between;
   align-items: center;
@@ -348,6 +610,28 @@ pre {
   gap: 1rem;
   font-size: 0.9rem;
   color: var(--muted);
+  background: rgba(5, 6, 10, 0.5);
+  backdrop-filter: blur(10px);
+  position: relative;
+}
+
+.footer::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 1px;
+  background: linear-gradient(90deg, transparent, rgba(77, 213, 255, 0.3), transparent);
+}
+
+.footer a {
+  transition: all 0.3s ease;
+}
+
+.footer a:hover {
+  color: var(--accent);
+  text-shadow: 0 0 10px var(--accent-glow);
 }
 
 @media (max-width: 720px) {
@@ -365,9 +649,27 @@ pre {
     flex-direction: column;
     padding: 1rem 0 0;
     gap: 0.75rem;
+    background: rgba(5, 6, 10, 0.95);
+    backdrop-filter: blur(20px);
+    border-radius: 0.5rem;
+    padding: 1rem;
+    margin-top: 1rem;
+    border: 1px solid var(--card-border);
   }
 
   .nav__links.is-open {
     display: flex;
+    animation: slideDown 0.3s ease;
+  }
+
+  @keyframes slideDown {
+    from {
+      opacity: 0;
+      transform: translateY(-10px);
+    }
+    to {
+      opacity: 1;
+      transform: translateY(0);
+    }
   }
 }