ui: improve text contrast

Darken secondary text, distinguish the limits panel, and make the disabled action easier to read.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

site/app.py

@@ -22,7 +22,7 @@ if _sys_path_root not in sys.path:
     sys.path.insert(0, _sys_path_root)
 
 # Версия приложения (меняется при изменениях)
-VERSION = "1.1.1"
+VERSION = "1.1.2"
 
 
 def setup_logging():

site/templates/index.html

@@ -119,11 +119,12 @@
     }
 
     .limits {
-      background: var(--brand-grey-light);
+      background: #eef4fb;
+      border: 1px solid #c9d9eb;
       border-radius: 8px;
       padding: 12px 16px;
       margin-bottom: 20px;
-      font-size: 13px;
+      font-size: 14px;
       color: var(--muted);
     }
 
@@ -317,9 +318,9 @@
     }
 
     .btn:disabled {
-      background: #e9ecef;
-      border-color: #e9ecef;
-      color: #a4acb3;
+      background: #cfe0fb;
+      border-color: #cfe0fb;
+      color: #1f384d;
       cursor: not-allowed;
     }