feat: glitter sparkles on heart, metallic gold text across all headings

- Add animated gold sparkle dots on heart surface with glow filter
- Brighten heart metal fill for better visibility against dark bg
- Update headline gradient to dark metallic gold (no white tones)
- Apply gradient-text to all section headings for consistency
- Warm gold subtitle color in hero

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/ui/HeroLogo.tsx

@@ -25,6 +25,25 @@ const ANIM_CONFIG = [
 
 const FULL_PATH = PATHS.join(" ");
 
+// Glitter sparkle positions (x, y) placed within the heart shape
+const SPARKLES = [
+  { x: 150, y: 30, delay: 0, dur: 2.4 },
+  { x: 185, y: 55, delay: 1.1, dur: 2.0 },
+  { x: 200, y: 85, delay: 0.5, dur: 2.8 },
+  { x: 170, y: 110, delay: 2.0, dur: 2.2 },
+  { x: 145, y: 75, delay: 1.6, dur: 2.6 },
+  { x: 130, y: 50, delay: 0.3, dur: 2.1 },
+  { x: 160, y: 140, delay: 2.5, dur: 2.4 },
+  { x: 125, y: 160, delay: 1.8, dur: 2.0 },
+  { x: 105, y: 100, delay: 0.8, dur: 2.5 },
+  { x: 90, y: 70, delay: 1.3, dur: 2.3 },
+  { x: 75, y: 45, delay: 2.2, dur: 2.1 },
+  { x: 60, y: 80, delay: 0.6, dur: 2.7 },
+  { x: 50, y: 55, delay: 1.9, dur: 2.0 },
+  { x: 40, y: 95, delay: 0.2, dur: 2.4 },
+  { x: 115, y: 130, delay: 1.4, dur: 2.6 },
+];
+
 export function HeroLogo({ className = "", size = 220 }: HeroLogoProps) {
   const h = Math.round(size * (192 / 234));
 
@@ -41,9 +60,9 @@ export function HeroLogo({ className = "", size = 220 }: HeroLogoProps) {
       <defs>
         {/* Dark metal gradient for fill */}
         <radialGradient id="metal-fill" cx="50%" cy="35%" r="65%" fx="50%" fy="30%">
-          <stop offset="0%" stopColor="#222" />
-          <stop offset="50%" stopColor="#111" />
-          <stop offset="100%" stopColor="#0a0a0a" />
+          <stop offset="0%" stopColor="#333" />
+          <stop offset="50%" stopColor="#1a1a1a" />
+          <stop offset="100%" stopColor="#111" />
         </radialGradient>
 
         {/* Gold glow filter for the stroke */}
@@ -54,6 +73,20 @@ export function HeroLogo({ className = "", size = 220 }: HeroLogoProps) {
             <feMergeNode in="SourceGraphic" />
           </feMerge>
         </filter>
+
+        {/* Sparkle glow filter */}
+        <filter id="sparkle-glow" x="-100%" y="-100%" width="300%" height="300%">
+          <feGaussianBlur in="SourceGraphic" stdDeviation="2" result="blur" />
+          <feMerge>
+            <feMergeNode in="blur" />
+            <feMergeNode in="SourceGraphic" />
+          </feMerge>
+        </filter>
+
+        {/* Clip to heart shape so sparkles stay inside */}
+        <clipPath id="heart-clip">
+          <path d={FULL_PATH} fillRule="evenodd" />
+        </clipPath>
       </defs>
 
       {/* Base heart: dark metal */}
@@ -63,6 +96,28 @@ export function HeroLogo({ className = "", size = 220 }: HeroLogoProps) {
         d={FULL_PATH}
       />
 
+      {/* Glitter sparkles on heart surface */}
+      <g clipPath="url(#heart-clip)" filter="url(#sparkle-glow)">
+        {SPARKLES.map((s, i) => (
+          <circle key={`sparkle-${i}`} cx={s.x} cy={s.y} r="1.8" fill="#d4b87a">
+            <animate
+              attributeName="opacity"
+              values="0;0;0.9;1;0.9;0;0"
+              dur={`${s.dur}s`}
+              begin={`${s.delay}s`}
+              repeatCount="indefinite"
+            />
+            <animate
+              attributeName="r"
+              values="0.8;1.8;0.8"
+              dur={`${s.dur}s`}
+              begin={`${s.delay}s`}
+              repeatCount="indefinite"
+            />
+          </circle>
+        ))}
+      </g>
+
       {/* Animated gold glint — one per sub-path, staggered */}
       {PATHS.map((d, i) => {
         const len = PATH_LENGTHS[i];
@@ -92,13 +147,13 @@ export function HeroLogo({ className = "", size = 220 }: HeroLogoProps) {
         );
       })}
 
-      {/* Subtle constant gold edge highlight */}
+      {/* Constant gold edge highlight */}
       <path
         d={FULL_PATH}
         fill="none"
         stroke="#c9a96e"
-        strokeWidth="0.5"
-        strokeOpacity="0.15"
+        strokeWidth="0.75"
+        strokeOpacity="0.3"
         fillRule="evenodd"
       />
     </svg>