diff --git a/static/css/custom.css b/static/css/custom.css
index e73c167..5da60a8 100644
--- a/static/css/custom.css
+++ b/static/css/custom.css
@@ -1,30 +1,6 @@
-body {
-    background: #f5f7fa;
-    position: relative;
-    overflow-x: hidden;
-}
-
 body::before {
-    content: '';
-    position: fixed;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-    z-index: -1;
-    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400' viewBox='0 0 400 400'%3E%3Cdefs%3E%3Cstyle%3E.f%7Bfont-family:serif;font-size:18px;fill:%23003366;opacity:0.1%7D%3C/style%3E%3C/defs%3E%3Ctext x='20' y='40' class='f'%3E∫%3C/text%3E%3Ctext x='200' y='100' class='f'%3E∑%3C/text%3E%3Ctext x='80' y='180' class='f'%3E∂%3C/text%3E%3Ctext x='300' y='250' class='f'%3E∇%3C/text%3E%3Ctext x='150' y='320' class='f'%3E∞%3C/text%3E%3CanimateTransform attributeName='transform' type='translate' values='0,0; 10,10; 0,0' dur='20s' repeatCount='indefinite'/%3E%3C/svg%3E");
-    background-size: 400px 400px;
-    animation: bgScroll 60s linear infinite;
-}
-
-@keyframes bgScroll {
-    from { background-position: 0 0; }
-    to { background-position: 400px 400px; }
-}
-
-header, main, footer {
-    position: relative;
-    z-index: 1;
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M0 0 L60 60 M60 0 L0 60' stroke='%23003366' stroke-width='0.5' opacity='0.05'/%3E%3C/svg%3E");
+    background-size: 60px 60px;
 }
 
 /* Ограничение максимального размера всех изображений */