refactor: clean up MetricCard styles

Author: kastov

src/shared/ui/metrics/metric-card/MetricCard.module.css

@@ -4,55 +4,6 @@
     cursor: default;
     position: relative;
     overflow: hidden;
-    transition: 0.14s ease-in;
-
-    /* Light theme */
-    border: 1px solid var(--mantine-color-gray-2);
-    background: linear-gradient(
-        135deg,
-        var(--mantine-color-white) 0%,
-        var(--mantine-color-gray-0) 100%
-    );
-    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-}
-
-/* Dark theme */
-[data-mantine-color-scheme='dark'] .root {
-    border: 1px solid var(--mantine-color-dark-4);
-    background: linear-gradient(
-        135deg,
-        var(--mantine-color-dark-6) 0%,
-        var(--mantine-color-dark-7) 100%
-    );
-    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
-}
-
-.root::before {
-    content: '';
-    position: absolute;
-    top: 0;
-    left: 0;
-    right: 0;
-    height: 2px;
-    background: linear-gradient(90deg, var(--mantine-color-cyan-4), var(--mantine-color-cyan-8));
-    opacity: 0;
-    transition: 0.24s ease-in-out;
-}
-
-.root:hover {
-    transform: translateY(-2px);
-    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
-    border-color: var(--mantine-color-cyan-5);
-    transition: 0.24s ease-out;
-}
-
-[data-mantine-color-scheme='dark'] .root:hover {
-    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
-    border-color: var(--mantine-color-cyan-5);
-}
-
-.root:hover::before {
-    opacity: 1;
 }
 
 .icon {
@@ -65,7 +16,6 @@
     overflow: hidden;
     min-width: 56px;
     min-height: 56px;
-    backdrop-filter: blur(8px);
 }
 
 .textEmphasis {