more style changes

- Removed the sheen over the homepage hero image
- Animated the SHARP-ER logo in the navbar
- More padding on the bottom of the hero section in the homepage

apps/web/app/components/ui/Navigation/Navigation.css

@@ -29,20 +29,30 @@
      last, slowest part of the decelerating slide. The translate is physical
      (translateX) on purpose: the lockup row is pinned to dir="ltr" because a
      Latin wordmark never mirrors, so the P is always left of the suffix, in
-     Arabic too. Pure CSS, so it runs from the server-rendered HTML without
-     waiting for hydration, and the `both` fill keeps the suffix hidden through
-     the delay instead of flashing in first. It replays whenever the navigation
-     mounts again, e.g. on a client-side navigation back to a page. Under
-     prefers-reduced-motion the animation is removed outright - app.css only
-     collapses the duration and would leave the delay holding the suffix
-     hidden - so the full name is simply there from the start. */
+     Arabic too.
+
+After that one-time reveal the mark keeps breathing: after a long rest
+      (~26s of stillness per cycle) it slides back out from behind the P and
+      returns, so the wordmark quietly draws the eye without the glyphs moving
+      while they are visible. The two
+     animations are sequenced by delay - the reveal (once, `both` fill, so the
+     suffix stays hidden through its delay instead of flashing in) hands over
+     to the loop, whose later position in the list wins from its start, and
+     whose own delay is when the revealed lockup is simply at rest. Pure CSS,
+     so it runs from the server-rendered HTML without waiting for hydration.
+     Under prefers-reduced-motion both animations are removed outright -
+     app.css only collapses the duration and would leave the delay holding the
+     suffix hidden - so the full name is simply there from the start. */
   .sh-brand-suffix {
     overflow: hidden;
   }
 
   .sh-brand-suffix__mark {
-    animation: sh-brand-suffix-in var(--motion-duration-reveal)
-      var(--motion-ease-entrance) var(--motion-delay-reveal) both;
+    animation:
+      sh-brand-suffix-in var(--motion-duration-reveal)
+        var(--motion-ease-entrance) var(--motion-delay-reveal) both,
+      sh-brand-breathe calc(var(--motion-duration-reveal) * 37.5)
+        ease-in-out calc(var(--motion-duration-reveal) * 5) infinite;
   }
 
   @media (prefers-reduced-motion: reduce) {
@@ -68,6 +78,53 @@
   }
 }
 
+/* One 30s breath: dwell at rest (~26s - the stillness is what stretches, the
+   gestures stay at a human pace), slide back out behind the P (the reverse of
+   the reveal - solid while it pulls away, fading as it leaves), pass on
+   hidden, then play the reveal again, and hold. Looped, with the cycle ending
+   where it starts so the seam is invisible. Each slide is ONE eased interval
+   of roughly one reveal duration - the opacity stop inside the out-slide is
+   opacity-only, so it never splits the transform's easing and the glyphs
+   cannot stall or hitch mid-gesture. */
+@keyframes sh-brand-breathe {
+  /* settled */
+  0%, 87% {
+    transform: translateX(0);
+    opacity: 1;
+    animation-timing-function: var(--motion-ease-standard);
+  }
+
+  /* pull back solid - opacity only, so the 87→90 transform still runs one
+     eased interval and the slide never hitches */
+  88.5% {
+    opacity: 1;
+  }
+
+  /* gone, behind the P */
+  90% {
+    transform: translateX(-100%);
+    opacity: 0;
+  }
+
+  /* pass, hidden, then the reveal again - one eased slide back in */
+  94% {
+    transform: translateX(-100%);
+    opacity: 0;
+    animation-timing-function: var(--motion-ease-entrance);
+  }
+
+  97% {
+    transform: translateX(0);
+    opacity: 1;
+  }
+
+  /* settled until the cycle hands over (0% is settled too) */
+  100% {
+    transform: translateX(0);
+    opacity: 1;
+  }
+}
+
 @keyframes sh-nav-menu-in {
   from {
     opacity: 0;