feat(steam): Added steam activity

static/css/style.css

@@ -1041,6 +1041,62 @@ a.ym-now-link:hover .ym-track-title { color: var(--accent); }
     .ym-link { padding: 9px 11px; gap: 10px; }
 }
 
+/* ---------- активность: музыка слева, Steam справа ---------- */
+.activity-grid {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
+    gap: 26px;
+    align-items: start;
+}
+
+.activity-grid .ym-tracker {
+    max-width: none;
+    margin: 0;
+    padding: 0;
+}
+
+.steam-panel { min-width: 0; }
+
+.st-sub {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    margin: 18px 0 10px;
+}
+
+.st-sub h3 {
+    font-family: var(--mono);
+    font-size: .74rem;
+    font-weight: 600;
+    letter-spacing: .12em;
+    text-transform: uppercase;
+    color: var(--muted);
+    white-space: nowrap;
+}
+
+.st-sub::after {
+    content: "";
+    flex: 1;
+    height: 1px;
+    background: rgba(255, 255, 255, .07);
+}
+
+.st-foot {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    flex-wrap: wrap;
+    gap: 8px 14px;
+    margin-top: 16px;
+    font-family: var(--mono);
+    font-size: .76rem;
+    color: var(--muted);
+}
+
+@media (max-width: 900px) {
+    .activity-grid { grid-template-columns: 1fr; }
+}
+
 /* ---------- кнопка друга ---------- */
 .friend-cta {
     display: flex;