feat: p hase 3 of tailwind migration

assets/css/tokens.css

@@ -1,3 +1,21 @@
+@theme {
+  --color-shell-bg: #1e1e1e;
+  --color-sidebar-bg: #252526;
+  --color-activity-bg: #333333;
+  --color-panel-bg: #1e1e1e;
+  --color-tab-active-bg: #1e1e1e;
+  --color-tab-inactive-bg: #2d2d2d;
+  --color-focus-border: #007fd4;
+  --color-input-bg: rgba(255, 255, 255, 0.06);
+  --color-input-border: rgba(255, 255, 255, 0.12);
+  --color-status-bg: #007acc;
+  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
+  --text-shell: 13px;
+  --spacing-titlebar: 34px;
+  --spacing-tabbar: 35px;
+  --spacing-statusbar: 22px;
+}
+
 :root {
   --accent-color: #007acc;
   --accent-color-transparent: rgba(0, 122, 204, 0.25);

assets/css/utilities.css

@@ -0,0 +1,47 @@
+@layer components {
+	.btn-base {
+		display: inline-flex;
+		align-items: center;
+		justify-content: center;
+		gap: 6px;
+		min-height: 28px;
+		padding: 4px 10px;
+		border: 1px solid transparent;
+		border-radius: 4px;
+		font: inherit;
+		line-height: 1.2;
+		cursor: pointer;
+		user-select: none;
+	}
+
+	.btn-theme-primary {
+		color: var(--vscode-button-foreground, #ffffff);
+		background: var(--vscode-button-background, var(--vscode-focusBorder));
+	}
+
+	.btn-theme-primary:hover {
+		background: var(--vscode-button-hoverBackground, #0e639c);
+	}
+
+	.btn-theme-danger {
+		color: var(--vscode-errorForeground, #f48771);
+		background: transparent;
+		border-color: color-mix(in srgb, var(--vscode-errorForeground, #f48771) 45%, transparent);
+	}
+
+	.btn-theme-danger:hover {
+		background: color-mix(in srgb, var(--vscode-errorForeground, #f48771) 14%, transparent);
+	}
+
+	.panel-entry {
+		border: 1px solid var(--vscode-panel-border);
+		border-radius: 4px;
+		background-color: var(--vscode-sideBar-background);
+	}
+
+	.monaco-host {
+		min-width: 0;
+		min-height: 0;
+		overflow: hidden;
+	}
+}