tawasuyu/brahman

- filter: blur(60px) so the radial-gradient is a soft uniform glow,
  no visible circle or division
- Centered at 50% 50%, opacity 0.30→0.60 breathe

diff --git a/crates/apps/gioser-web/styles.css b/crates/apps/gioser-web/styles.css
index bee8dc0..7914b5b 100644
--- a/crates/apps/gioser-web/styles.css
+++ b/crates/apps/gioser-web/styles.css
@@ -232,26 +232,28 @@ body.deck-active-tierra .deck { --deck-glow: rgba(212, 152, 115, 0.24); }
   pointer-events: none;
   z-index: 0;
   transition: opacity 2s ease;
+  filter: blur(60px);
+  opacity: 0.5;
 }
 .deck-page[data-element="aire"] .page-ambience {
-  background: radial-gradient(circle at 50% 60%, rgba(208,219,255,0.18), transparent 70%);
+  background: radial-gradient(circle at 50% 50%, rgba(208,219,255,0.22), transparent 60%);
   animation: page-breathe 8s ease-in-out infinite alternate;
 }
 .deck-page[data-element="fuego"] .page-ambience {
-  background: radial-gradient(circle at 50% 80%, rgba(245,144,86,0.22), transparent 70%);
+  background: radial-gradient(circle at 50% 50%, rgba(245,144,86,0.22), transparent 60%);
   animation: page-breathe 6s ease-in-out infinite alternate;
 }
 .deck-page[data-element="agua"] .page-ambience {
-  background: radial-gradient(circle at 50% 80%, rgba(108,208,243,0.18), transparent 70%);
+  background: radial-gradient(circle at 50% 50%, rgba(108,208,243,0.22), transparent 60%);
   animation: page-breathe 10s ease-in-out infinite alternate;
 }
 .deck-page[data-element="tierra"] .page-ambience {
-  background: radial-gradient(circle at 50% 85%, rgba(140,100,60,0.22), transparent 70%);
+  background: radial-gradient(circle at 50% 50%, rgba(140,100,60,0.22), transparent 60%);
   animation: page-breathe 7s ease-in-out infinite alternate;
 }
 @keyframes page-breathe {
-  from { opacity: 0.35; }
-  to   { opacity: 0.80; }
+  from { opacity: 0.30; }
+  to   { opacity: 0.60; }
 }
 
 /* Head + controls — fijos en el deck, no dentro de la página */