diff --git a/src/ui/dashboard/dashboard-core-cards.tsx b/src/ui/dashboard/dashboard-core-cards.tsx
index 8325cc860..01fedd97f 100644
--- a/src/ui/dashboard/dashboard-core-cards.tsx
+++ b/src/ui/dashboard/dashboard-core-cards.tsx
@@ -24,6 +24,7 @@ import {
 import { getDefaultConnectionTab } from "@/lib/host-connection-tabs";
 import type { RecentActivityItem } from "@/main-axios";
 import type { Host, TabType } from "@/types/ui-types";
+import { quarterBorders } from "./quarter-borders";
 
 export type VersionStatus =
   "up_to_date" | "requires_update" | "beta" | "unknown";
@@ -161,17 +162,19 @@ function ActionButton({
   label,
   hint,
   onClick,
+  className,
 }: {
   icon: React.ElementType;
   label: string;
   hint: string;
   onClick: () => void;
+  className?: string;
 }) {
   return (
     <button
       type="button"
       onClick={onClick}
-      className="group/btn flex h-full min-w-0 items-center gap-2 border border-border/60 px-2 py-1.5 text-left transition-colors hover:border-accent-brand/40 hover:bg-muted/50"
+      className={`group/btn flex h-full min-w-0 items-center gap-2 px-3 py-2 text-left transition-colors hover:bg-muted/50 ${className ?? ""}`}
     >
       <span className="flex size-6 shrink-0 items-center justify-center border border-border bg-muted transition-colors group-hover/btn:border-accent-brand/40 group-hover/btn:bg-accent-brand/20">
         <Icon className="size-3 text-accent-brand" />
@@ -208,39 +211,48 @@ export function QuickActions({
         : host.port;
     return `${host.ip}:${port ?? host.port}`;
   };
+  const actions = [
+    {
+      icon: Plus,
+      label: t("dashboard.addHost"),
+      hint: t("dashboardTab.registerNewServer"),
+      onClick: () =>
+        onOpenSingletonTab("host-manager", "host-manager:add-host"),
+    },
+    {
+      icon: KeyRound,
+      label: t("dashboard.addCredential"),
+      hint: t("dashboardTab.storeSshKeysOrPasswords"),
+      onClick: () =>
+        onOpenSingletonTab("host-manager", "host-manager:add-credential"),
+    },
+    ...(isAdmin
+      ? [
+          {
+            icon: Settings,
+            label: t("dashboard.adminSettings"),
+            hint: t("dashboardTab.manageUsersAndRoles"),
+            onClick: () => onOpenSingletonTab("admin-settings"),
+          },
+        ]
+      : []),
+    {
+      icon: User,
+      label: t("dashboard.userProfile"),
+      hint: t("dashboardTab.manageYourAccount"),
+      onClick: () => onOpenSingletonTab("user-profile"),
+    },
+  ];
   return (
     <div className="flex min-h-full flex-1 flex-col">
-      <div className="grid flex-1 auto-rows-fr grid-cols-1 gap-1 p-2 sm:grid-cols-2">
-        <ActionButton
-          icon={Plus}
-          label={t("dashboard.addHost")}
-          hint={t("dashboardTab.registerNewServer")}
-          onClick={() =>
-            onOpenSingletonTab("host-manager", "host-manager:add-host")
-          }
-        />
-        <ActionButton
-          icon={KeyRound}
-          label={t("dashboard.addCredential")}
-          hint={t("dashboardTab.storeSshKeysOrPasswords")}
-          onClick={() =>
-            onOpenSingletonTab("host-manager", "host-manager:add-credential")
-          }
-        />
-        {isAdmin && (
+      <div className="grid flex-1 auto-rows-fr grid-cols-1 sm:grid-cols-2">
+        {actions.map((action, i) => (
           <ActionButton
-            icon={Settings}
-            label={t("dashboard.adminSettings")}
-            hint={t("dashboardTab.manageUsersAndRoles")}
-            onClick={() => onOpenSingletonTab("admin-settings")}
+            key={action.label}
+            {...action}
+            className={quarterBorders(i, actions.length)}
           />
-        )}
-        <ActionButton
-          icon={User}
-          label={t("dashboard.userProfile")}
-          hint={t("dashboardTab.manageYourAccount")}
-          onClick={() => onOpenSingletonTab("user-profile")}
-        />
+        ))}
       </div>
       {pinnedHosts.length > 0 && (
         <div className="flex flex-col border-t border-border">
@@ -308,7 +320,7 @@ export function HostStatusList({
                 defaultConnectAction(actions, host)?.tabType;
               if (target) onOpenTab(host, target);
             }}
-            className="group/row flex min-w-0 cursor-pointer items-center gap-2 border-b border-border/60 px-3 py-1.5 last:border-0 hover:bg-muted/50"
+            className="group/row flex min-w-0 cursor-pointer items-center gap-2 px-3 py-1.5 hover:bg-muted/50"
           >
             <span
               className={`size-1.5 shrink-0 rounded-full ${getStatusClasses(availability, scheme, "dot", statusLoading)}`}
diff --git a/src/ui/dashboard/quarter-borders.ts b/src/ui/dashboard/quarter-borders.ts
new file mode 100644
index 000000000..f2944c8dc
--- /dev/null
+++ b/src/ui/dashboard/quarter-borders.ts
@@ -0,0 +1,15 @@
+/**
+ * Lines only between cells, so the actions read as quarters: one column on
+ * small screens, two above. An odd last cell spans the full row.
+ */
+export function quarterBorders(index: number, count: number): string {
+  const classes = ["border-border"];
+  const last = index === count - 1;
+  if (!last) classes.push("border-b");
+  if (Math.floor(index / 2) === Math.floor((count - 1) / 2)) {
+    classes.push("sm:border-b-0");
+  }
+  if (index % 2 === 0 && !last) classes.push("sm:border-r");
+  if (last && count % 2 === 1) classes.push("sm:col-span-2");
+  return classes.join(" ");
+}
diff --git a/src/ui/tests/dashboard/quarter-borders.test.ts b/src/ui/tests/dashboard/quarter-borders.test.ts
new file mode 100644
index 000000000..09b1db43e
--- /dev/null
+++ b/src/ui/tests/dashboard/quarter-borders.test.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from "vitest";
+import { quarterBorders } from "@/dashboard/quarter-borders";
+
+describe("quarterBorders", () => {
+  it("draws a cross between four cells", () => {
+    expect([0, 1, 2, 3].map((i) => quarterBorders(i, 4))).toEqual([
+      "border-border border-b sm:border-r",
+      "border-border border-b",
+      "border-border border-b sm:border-b-0 sm:border-r",
+      "border-border sm:border-b-0",
+    ]);
+  });
+
+  it("stretches an odd last cell across the row", () => {
+    expect(quarterBorders(2, 3)).toBe(
+      "border-border sm:border-b-0 sm:col-span-2",
+    );
+    expect(quarterBorders(1, 3)).toBe("border-border border-b");
+  });
+});