diff --git a/gallery/src/pages/components/ha-wa-dialog.markdown b/gallery/src/pages/components/ha-wa-dialog.markdown
new file mode 100644
index 000000000000..2ae337e35a58
--- /dev/null
+++ b/gallery/src/pages/components/ha-wa-dialog.markdown
@@ -0,0 +1,3 @@
+---
+title: Dialog (ha-wa-dialog)
+---
diff --git a/gallery/src/pages/components/ha-wa-dialog.ts b/gallery/src/pages/components/ha-wa-dialog.ts
new file mode 100644
index 000000000000..41fafe785d59
--- /dev/null
+++ b/gallery/src/pages/components/ha-wa-dialog.ts
@@ -0,0 +1,523 @@
+import { css, html, LitElement } from "lit";
+import { customElement, state } from "lit/decorators";
+import { mdiCog, mdiHelp } from "@mdi/js";
+import "../../../../src/components/ha-button";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-dialog-footer";
+import "../../../../src/components/ha-form/ha-form";
+import "../../../../src/components/ha-icon-button";
+import "../../../../src/components/ha-wa-dialog";
+import type { HaFormSchema } from "../../../../src/components/ha-form/types";
+
+const SCHEMA: HaFormSchema[] = [
+  { type: "string", name: "Name", default: "", autofocus: true },
+  { type: "string", name: "Email", default: "" },
+];
+
+type DialogType =
+  | false
+  | "basic"
+  | "basic-subtitle-below"
+  | "basic-subtitle-above"
+  | "form"
+  | "actions";
+
+@customElement("demo-components-ha-wa-dialog")
+export class DemoHaWaDialog extends LitElement {
+  @state() private _openDialog: DialogType = false;
+
+  protected render() {
+    return html`
+      <div class="content">
+        <h1>Dialog <code>&lt;ha-wa-dialog&gt;</code></h1>
+
+        <p class="subtitle">Dialog component built with WebAwesome.</p>
+
+        <h2>Demos</h2>
+
+        <div class="buttons">
+          <ha-button @click=${this._handleOpenDialog("basic")}
+            >Basic dialog</ha-button
+          >
+          <ha-button @click=${this._handleOpenDialog("basic-subtitle-below")}
+            >Basic dialog with subtitle below</ha-button
+          >
+          <ha-button @click=${this._handleOpenDialog("basic-subtitle-above")}
+            >Basic dialog with subtitle above</ha-button
+          >
+          <ha-button @click=${this._handleOpenDialog("form")}
+            >Dialog with form</ha-button
+          >
+          <ha-button @click=${this._handleOpenDialog("actions")}
+            >Dialog with actions</ha-button
+          >
+        </div>
+
+        <ha-wa-dialog
+          .open=${this._openDialog === "basic"}
+          header-title="Basic dialog"
+          @closed=${this._handleClosed}
+        >
+          <div>Dialog content</div>
+        </ha-wa-dialog>
+
+        <ha-wa-dialog
+          .open=${this._openDialog === "basic-subtitle-below"}
+          header-title="Basic dialog with subtitle"
+          header-subtitle="This is a basic dialog with a subtitle below"
+          @closed=${this._handleClosed}
+        >
+          <div>Dialog content</div>
+        </ha-wa-dialog>
+
+        <ha-wa-dialog
+          .open=${this._openDialog === "basic-subtitle-above"}
+          header-title="Dialog with subtitle above"
+          header-subtitle="This is a basic dialog with a subtitle above"
+          header-subtitle-position="above"
+          @closed=${this._handleClosed}
+        >
+          <div>Dialog content</div>
+        </ha-wa-dialog>
+
+        <ha-wa-dialog
+          .open=${this._openDialog === "form"}
+          header-title="Dialog with form"
+          header-subtitle="This is a dialog with a form and a footer"
+          prevent-scrim-close
+          @closed=${this._handleClosed}
+        >
+          <ha-form autofocus .schema=${SCHEMA}></ha-form>
+          <ha-dialog-footer slot="footer">
+            <ha-button
+              data-dialog="close"
+              slot="secondaryAction"
+              variant="plain"
+              >Cancel</ha-button
+            >
+            <ha-button data-dialog="close" slot="primaryAction" variant="accent"
+              >Submit</ha-button
+            >
+          </ha-dialog-footer>
+        </ha-wa-dialog>
+
+        <ha-wa-dialog
+          .open=${this._openDialog === "actions"}
+          header-title="Dialog with actions"
+          header-subtitle="This is a dialog with header actions"
+          @closed=${this._handleClosed}
+        >
+          <div slot="headerActionItems">
+            <ha-icon-button label="Settings" path=${mdiCog}></ha-icon-button>
+            <ha-icon-button label="Help" path=${mdiHelp}></ha-icon-button>
+          </div>
+
+          <div>Dialog content</div>
+        </ha-wa-dialog>
+
+        <h2>Design</h2>
+
+        <h3>Width</h3>
+
+        <p>There are multiple widths available for the dialog.</p>
+
+        <table>
+          <thead>
+            <tr>
+              <th>Name</th>
+              <th>Value</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>small</code></td>
+              <td><code>min(320px, var(--full-width))</code></td>
+            </tr>
+            <tr>
+              <td><code>medium</code></td>
+              <td><code>min(580px, var(--full-width))</code></td>
+            </tr>
+            <tr>
+              <td><code>large</code></td>
+              <td><code>min(720px, var(--full-width))</code></td>
+            </tr>
+            <tr>
+              <td><code>full</code></td>
+              <td><code>var(--full-width)</code></td>
+            </tr>
+          </tbody>
+        </table>
+
+        <p>
+          <code>--full-width</code> is calculated based on the available width
+          of the screen. 95vw is the maximum width of the dialog on a large
+          screen, while on a small screen it is 100vw minus the safe area
+          insets.
+        </p>
+
+        <p>Dialogs have a default width of <code>medium</code>.</p>
+
+        <h3>Prevent scrim close</h3>
+
+        <p>
+          You can prevent the dialog from being closed by clicking the
+          scrim/overlay. This is allowed by default.
+        </p>
+
+        <h3>Header</h3>
+
+        <p>The header contains a title, a subtitle and action items.</p>
+
+        <table>
+          <thead>
+            <tr>
+              <th>Slot</th>
+              <th>Description</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>header</code></td>
+              <td>The entire header area.</td>
+            </tr>
+            <tr>
+              <td><code>headerTitle</code></td>
+              <td>The header title text.</td>
+            </tr>
+            <tr>
+              <td><code>headerSubtitle</code></td>
+              <td>The header subtitle text.</td>
+            </tr>
+            <tr>
+              <td><code>headerActionItems</code></td>
+              <td>The header action items.</td>
+            </tr>
+          </tbody>
+        </table>
+
+        <h4>Header title</h4>
+
+        <p>The header title is a text string.</p>
+
+        <h4>Header subtitle</h4>
+
+        <p>The header subtitle is a text string.</p>
+
+        <h4>Header action items</h4>
+
+        <p>
+          The header action items usually containing icon buttons and/or menu
+          buttons.
+        </p>
+
+        <h3>Body</h3>
+
+        <p>The body is the content of the dialog.</p>
+
+        <h3>Footer</h3>
+
+        <p>The footer is the footer of the dialog.</p>
+
+        <p>
+          It is recommended to use the <code>ha-dialog-footer</code> component
+          for the footer and to style the buttons inside the footer as so:
+        </p>
+
+        <table>
+          <thead>
+            <tr>
+              <th>Slot</th>
+              <th>Description</th>
+              <th>Variant to use</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>secondaryAction</code></td>
+              <td>The secondary action button(s).</td>
+              <td><code>plain</code></td>
+            </tr>
+            <tr>
+              <td><code>primaryAction</code></td>
+              <td>The primary action button(s).</td>
+              <td><code>accent</code></td>
+            </tr>
+          </tbody>
+        </table>
+
+        <h2>Implementation</h2>
+
+        <h3>Example Usage</h3>
+
+        <pre><code>&lt;ha-wa-dialog
+  open
+  header-title="Dialog title"
+  header-subtitle="Dialog subtitle"
+  prevent-scrim-close
+&gt;
+  &lt;div slot="headerActionItems"&gt;
+    &lt;ha-icon-button label="Settings" path="mdiCog"&gt;&lt;/ha-icon-button&gt;
+    &lt;ha-icon-button label="Help" path="mdiHelp"&gt;&lt;/ha-icon-button&gt;
+  &lt;/div&gt;
+  &lt;div&gt;Dialog content&lt;/div&gt;
+  &lt;ha-dialog-footer slot="footer"&gt;
+    &lt;ha-button data-dialog="close" slot="secondaryAction" variant="plain"
+      &gt;Cancel&lt;/ha-button
+    &gt;
+    &lt;ha-button slot="primaryAction" variant="accent"&gt;Submit&lt;/ha-button&gt;
+  &lt;/ha-dialog-footer&gt;
+&lt;/ha-wa-dialog&gt;</code></pre>
+
+        <h3>API</h3>
+
+        <p>
+          This component is based on the webawesome dialog component. Check the
+          <a
+            href="https://webawesome.com/docs/components/dialog/"
+            target="_blank"
+            rel="noopener noreferrer"
+            >webawesome documentation</a
+          >
+          for more details.
+        </p>
+
+        <h4>Attributes</h4>
+
+        <table>
+          <thead>
+            <tr>
+              <th>Attribute</th>
+              <th>Description</th>
+              <th>Default</th>
+              <th>Options</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>open</code></td>
+              <td>Controls the dialog open state.</td>
+              <td><code>false</code></td>
+              <td><code>false</code>, <code>true</code></td>
+            </tr>
+            <tr>
+              <td><code>width</code></td>
+              <td>Preferred dialog width preset.</td>
+              <td><code>medium</code></td>
+              <td>
+                <code>small</code>, <code>medium</code>, <code>large</code>,
+                <code>full</code>
+              </td>
+            </tr>
+            <tr>
+              <td><code>prevent-scrim-close</code></td>
+              <td>
+                Prevents closing the dialog by clicking the scrim/overlay.
+              </td>
+              <td><code>false</code></td>
+              <td><code>true</code></td>
+            </tr>
+            <tr>
+              <td><code>header-title</code></td>
+              <td>Header title text when no custom title slot is provided.</td>
+              <td></td>
+              <td></td>
+            </tr>
+            <tr>
+              <td><code>header-subtitle</code></td>
+              <td>
+                Header subtitle text when no custom subtitle slot is provided.
+              </td>
+              <td></td>
+              <td></td>
+            </tr>
+            <tr>
+              <td><code>header-subtitle-position</code></td>
+              <td>Position of the subtitle relative to the title.</td>
+              <td><code>below</code></td>
+              <td><code>above</code>, <code>below</code></td>
+            </tr>
+            <tr>
+              <td><code>flexcontent</code></td>
+              <td>
+                Makes the dialog body a flex container for flexible layouts.
+              </td>
+              <td><code>false</code></td>
+              <td><code>false</code>, <code>true</code></td>
+            </tr>
+          </tbody>
+        </table>
+
+        <h4>CSS Custom Properties</h4>
+
+        <table>
+          <thead>
+            <tr>
+              <th>CSS Property</th>
+              <th>Description</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>--dialog-content-padding</code></td>
+              <td>Padding for dialog content sections.</td>
+            </tr>
+            <tr>
+              <td><code>--ha-dialog-show-duration</code></td>
+              <td>Show animation duration.</td>
+            </tr>
+            <tr>
+              <td><code>--ha-dialog-hide-duration</code></td>
+              <td>Hide animation duration.</td>
+            </tr>
+            <tr>
+              <td><code>--ha-dialog-surface-background</code></td>
+              <td>Dialog background color.</td>
+            </tr>
+            <tr>
+              <td><code>--ha-dialog-border-radius</code></td>
+              <td>Border radius of the dialog surface.</td>
+            </tr>
+            <tr>
+              <td><code>--dialog-z-index</code></td>
+              <td>Z-index for the dialog.</td>
+            </tr>
+            <tr>
+              <td><code>--dialog-surface-position</code></td>
+              <td>CSS position of the dialog surface.</td>
+            </tr>
+            <tr>
+              <td><code>--dialog-surface-margin-top</code></td>
+              <td>Top margin for the dialog surface.</td>
+            </tr>
+          </tbody>
+        </table>
+
+        <h4>Events</h4>
+
+        <table>
+          <thead>
+            <tr>
+              <th>Event</th>
+              <th>Description</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td><code>opened</code></td>
+              <td>Fired when the dialog is shown.</td>
+            </tr>
+            <tr>
+              <td><code>closed</code></td>
+              <td>Fired after the dialog is hidden.</td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    `;
+  }
+
+  private _handleOpenDialog = (dialog: DialogType) => () => {
+    this._openDialog = dialog;
+  };
+
+  private _handleClosed = () => {
+    this._openDialog = false;
+  };
+
+  static styles = [
+    css`
+      :host {
+        display: block;
+        padding: var(--ha-space-4);
+      }
+
+      .content {
+        max-width: 1000px;
+        margin: 0 auto;
+      }
+
+      h1 {
+        margin-top: 0;
+        margin-bottom: var(--ha-space-2);
+      }
+
+      h2 {
+        margin-top: var(--ha-space-6);
+        margin-bottom: var(--ha-space-3);
+      }
+
+      h3,
+      h4 {
+        margin-top: var(--ha-space-4);
+        margin-bottom: var(--ha-space-2);
+      }
+
+      p {
+        margin: var(--ha-space-2) 0;
+        line-height: 1.6;
+      }
+
+      .subtitle {
+        color: var(--secondary-text-color);
+        font-size: 1.1em;
+        margin-bottom: var(--ha-space-4);
+      }
+
+      table {
+        width: 100%;
+        border-collapse: collapse;
+        margin: var(--ha-space-3) 0;
+      }
+
+      th,
+      td {
+        text-align: left;
+        padding: var(--ha-space-2);
+        border-bottom: 1px solid var(--divider-color);
+      }
+
+      th {
+        font-weight: 500;
+      }
+
+      code {
+        background-color: var(--secondary-background-color);
+        padding: 2px 6px;
+        border-radius: 4px;
+        font-family: monospace;
+        font-size: 0.9em;
+      }
+
+      pre {
+        background-color: var(--secondary-background-color);
+        padding: var(--ha-space-3);
+        border-radius: 8px;
+        overflow-x: auto;
+        margin: var(--ha-space-3) 0;
+      }
+
+      pre code {
+        background-color: transparent;
+        padding: 0;
+      }
+
+      .buttons {
+        display: flex;
+        flex-direction: row;
+        flex-wrap: wrap;
+        gap: var(--ha-space-2);
+        margin: var(--ha-space-4) 0;
+      }
+
+      a {
+        color: var(--primary-color);
+      }
+    `,
+  ];
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-components-ha-wa-dialog": DemoHaWaDialog;
+  }
+}
diff --git a/src/components/ha-dialog-footer.ts b/src/components/ha-dialog-footer.ts
new file mode 100644
index 000000000000..e6dd229bd805
--- /dev/null
+++ b/src/components/ha-dialog-footer.ts
@@ -0,0 +1,52 @@
+import { css, html, LitElement } from "lit";
+import { customElement } from "lit/decorators";
+
+/**
+ * Home Assistant dialog footer component
+ *
+ * @element ha-dialog-footer
+ * @extends {LitElement}
+ *
+ * @summary
+ * A simple footer container for dialog actions,
+ * typically used as the `footer` slot in `ha-wa-dialog`.
+ *
+ * @slot primaryAction - Primary action button(s), aligned to the end.
+ * @slot secondaryAction - Secondary action button(s), placed before the primary action.
+ *
+ * @remarks
+ * **Button Styling Guidance:**
+ * - `primaryAction` slot: Use `variant="accent"`
+ * - `secondaryAction` slot: Use `variant="plain"`
+ */
+@customElement("ha-dialog-footer")
+export class HaDialogFooter extends LitElement {
+  protected render() {
+    return html`
+      <footer>
+        <slot name="secondaryAction"></slot>
+        <slot name="primaryAction"></slot>
+      </footer>
+    `;
+  }
+
+  static get styles() {
+    return [
+      css`
+        footer {
+          display: flex;
+          gap: var(--ha-space-3);
+          justify-content: flex-end;
+          align-items: center;
+          width: 100%;
+        }
+      `,
+    ];
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-dialog-footer": HaDialogFooter;
+  }
+}
diff --git a/src/components/ha-dialog-header.ts b/src/components/ha-dialog-header.ts
index ea6541f5952a..f6ede8ed46e2 100644
--- a/src/components/ha-dialog-header.ts
+++ b/src/components/ha-dialog-header.ts
@@ -1,9 +1,20 @@
 import { css, html, LitElement } from "lit";
-import { customElement } from "lit/decorators";
+import { customElement, property } from "lit/decorators";
 
 @customElement("ha-dialog-header")
 export class HaDialogHeader extends LitElement {
+  @property({ type: String, attribute: "subtitle-position" })
+  public subtitlePosition: "above" | "below" = "below";
+
   protected render() {
+    const titleSlot = html`<div class="header-title">
+      <slot name="title"></slot>
+    </div>`;
+
+    const subtitleSlot = html`<div class="header-subtitle">
+      <slot name="subtitle"></slot>
+    </div>`;
+
     return html`
       <header class="header">
         <div class="header-bar">
@@ -11,12 +22,9 @@ export class HaDialogHeader extends LitElement {
             <slot name="navigationIcon"></slot>
           </section>
           <section class="header-content">
-            <div class="header-title">
-              <slot name="title"></slot>
-            </div>
-            <div class="header-subtitle">
-              <slot name="subtitle"></slot>
-            </div>
+            ${this.subtitlePosition === "above"
+              ? html`${subtitleSlot}${titleSlot}`
+              : html`${titleSlot}${subtitleSlot}`}
           </section>
           <section class="header-action-items">
             <slot name="actionItems"></slot>
@@ -32,6 +40,7 @@ export class HaDialogHeader extends LitElement {
       css`
         :host {
           display: block;
+          min-height: 48px;
         }
         :host([show-border]) {
           border-bottom: 1px solid
@@ -40,7 +49,7 @@ export class HaDialogHeader extends LitElement {
         .header-bar {
           display: flex;
           flex-direction: row;
-          align-items: flex-start;
+          align-items: center;
           padding: 4px;
           box-sizing: border-box;
         }
@@ -53,13 +62,17 @@ export class HaDialogHeader extends LitElement {
           white-space: nowrap;
         }
         .header-title {
+          height: var(
+            --ha-dialog-header-title-height,
+            calc(var(--ha-font-size-xl) + 4px)
+          );
           font-size: var(--ha-font-size-xl);
           line-height: var(--ha-line-height-condensed);
-          font-weight: var(--ha-font-weight-normal);
+          font-weight: var(--ha-font-weight-medium);
         }
         .header-subtitle {
           font-size: var(--ha-font-size-m);
-          line-height: 20px;
+          line-height: var(--ha-line-height-normal);
           color: var(--secondary-text-color);
         }
         @media all and (min-width: 450px) and (min-height: 500px) {
diff --git a/src/components/ha-form/ha-form-string.ts b/src/components/ha-form/ha-form-string.ts
index 74c8333a0ffc..cee07aef312e 100644
--- a/src/components/ha-form/ha-form-string.ts
+++ b/src/components/ha-form/ha-form-string.ts
@@ -61,6 +61,7 @@ export class HaFormString extends LitElement implements HaFormElement {
         .required=${this.schema.required}
         .autoValidate=${this.schema.required}
         .name=${this.schema.name}
+        .autofocus=${this.schema.autofocus}
         .autocomplete=${this.schema.autocomplete}
         .suffix=${this.isPassword
           ? // reserve some space for the icon.
diff --git a/src/components/ha-form/ha-form.ts b/src/components/ha-form/ha-form.ts
index fbc79a56dd59..7b0d8b390609 100644
--- a/src/components/ha-form/ha-form.ts
+++ b/src/components/ha-form/ha-form.ts
@@ -105,6 +105,11 @@ export class HaForm extends LitElement implements HaFormElement {
     }
   }
 
+  static shadowRootOptions: ShadowRootInit = {
+    mode: "open",
+    delegatesFocus: true,
+  };
+
   protected render(): TemplateResult {
     return html`
       <div class="root" part="root">
diff --git a/src/components/ha-wa-dialog.ts b/src/components/ha-wa-dialog.ts
new file mode 100644
index 000000000000..1e3118e919bf
--- /dev/null
+++ b/src/components/ha-wa-dialog.ts
@@ -0,0 +1,320 @@
+import { css, html, LitElement, nothing } from "lit";
+import { customElement, property, state } from "lit/decorators";
+import "@home-assistant/webawesome/dist/components/dialog/dialog";
+import { mdiClose } from "@mdi/js";
+import "./ha-dialog-header";
+import "./ha-icon-button";
+import type { HomeAssistant } from "../types";
+import { fireEvent } from "../common/dom/fire_event";
+import { haStyleScrollbar } from "../resources/styles";
+
+export type DialogWidth = "small" | "medium" | "large" | "full";
+
+/**
+ * Home Assistant dialog component
+ *
+ * @element ha-wa-dialog
+ * @extends {LitElement}
+ *
+ * @summary
+ * A stylable dialog built using the `wa-dialog` component, providing a standardized header (ha-dialog-header),
+ * body, and footer (preferably using `ha-dialog-footer`) with slots
+ *
+ * You can open and close the dialog declaratively by using the `data-dialog="close"` attribute.
+ * @see https://webawesome.com/docs/components/dialog/#opening-and-closing-dialogs-declaratively
+ *
+ * @slot header - Replace the entire header area.
+ * @slot headerNavigationIcon - Leading header action (e.g. close/back button).
+ * @slot headerActionItems - Trailing header actions (e.g. buttons, menus).
+ * @slot - Dialog content body.
+ * @slot footer - Dialog footer content.
+ *
+ * @csspart dialog - The dialog surface.
+ * @csspart header - The header container.
+ * @csspart body - The scrollable body container.
+ * @csspart footer - The footer container.
+ *
+ * @cssprop --dialog-content-padding - Padding for the dialog content sections.
+ * @cssprop --ha-dialog-show-duration - Show animation duration.
+ * @cssprop --ha-dialog-hide-duration - Hide animation duration.
+ * @cssprop --ha-dialog-surface-background - Dialog background color.
+ * @cssprop --ha-dialog-border-radius - Border radius of the dialog surface.
+ * @cssprop --dialog-z-index - Z-index for the dialog.
+ * @cssprop --dialog-surface-position - CSS position of the dialog surface.
+ * @cssprop --dialog-surface-margin-top - Top margin for the dialog surface.
+ *
+ * @attr {boolean} open - Controls the dialog open state.
+ * @attr {("small"|"medium"|"large"|"full")} width - Preferred dialog width preset. Defaults to "medium".
+ * @attr {boolean} prevent-scrim-close - Prevents closing the dialog by clicking the scrim/overlay. Defaults to false.
+ * @attr {string} header-title - Header title text when no custom title slot is provided.
+ * @attr {string} header-subtitle - Header subtitle text when no custom subtitle slot is provided.
+ * @attr {("above"|"below")} header-subtitle-position - Position of the subtitle relative to the title. Defaults to "below".
+ * @attr {boolean} flexcontent - Makes the dialog body a flex container for flexible layouts.
+ *
+ * @event opened - Fired when the dialog is shown.
+ * @event closed - Fired after the dialog is hidden.
+ *
+ * @remarks
+ * **Focus Management:**
+ * To automatically focus an element when the dialog opens, add the `autofocus` attribute to it.
+ * Components with `delegatesFocus: true` (like `ha-form`) will forward focus to their first focusable child.
+ * Example: `<ha-form autofocus .schema=${schema}></ha-form>`
+ *
+ * @see https://github.com/home-assistant/frontend/issues/27143
+ */
+@customElement("ha-wa-dialog")
+export class HaWaDialog extends LitElement {
+  @property({ attribute: false }) public hass!: HomeAssistant;
+
+  @property({ type: Boolean, reflect: true })
+  public open = false;
+
+  @property({ type: String, reflect: true, attribute: "width" })
+  public width: DialogWidth = "medium";
+
+  @property({ type: Boolean, reflect: true, attribute: "prevent-scrim-close" })
+  public preventScrimClose = false;
+
+  @property({ type: String, attribute: "header-title" })
+  public headerTitle = "";
+
+  @property({ type: String, attribute: "header-subtitle" })
+  public headerSubtitle = "";
+
+  @property({ type: String, attribute: "header-subtitle-position" })
+  public headerSubtitlePosition: "above" | "below" = "below";
+
+  @property({ type: Boolean, reflect: true, attribute: "flexcontent" })
+  public flexContent = false;
+
+  @state()
+  private _open = false;
+
+  protected updated(
+    changedProperties: Map<string | number | symbol, unknown>
+  ): void {
+    super.updated(changedProperties);
+
+    if (changedProperties.has("open")) {
+      this._open = this.open;
+    }
+  }
+
+  protected render() {
+    return html`
+      <wa-dialog
+        .open=${this._open}
+        .lightDismiss=${!this.preventScrimClose}
+        without-header
+        @wa-show=${this._handleShow}
+        @wa-after-hide=${this._handleAfterHide}
+      >
+        <slot name="header">
+          <ha-dialog-header .subtitlePosition=${this.headerSubtitlePosition}>
+            <slot name="headerNavigationIcon" slot="navigationIcon">
+              <ha-icon-button
+                data-dialog="close"
+                .label=${this.hass?.localize("ui.common.close") ?? "Close"}
+                .path=${mdiClose}
+              ></ha-icon-button>
+            </slot>
+            ${this.headerTitle
+              ? html`<span slot="title" class="title">
+                  ${this.headerTitle}
+                </span>`
+              : nothing}
+            ${this.headerSubtitle
+              ? html`<span slot="subtitle">${this.headerSubtitle}</span>`
+              : nothing}
+            <slot name="headerActionItems" slot="actionItems"></slot>
+          </ha-dialog-header>
+        </slot>
+        <div class="body ha-scrollbar">
+          <slot></slot>
+        </div>
+        <slot name="footer" slot="footer"></slot>
+      </wa-dialog>
+    `;
+  }
+
+  private _handleShow = async () => {
+    this._open = true;
+    fireEvent(this, "opened");
+
+    await this.updateComplete;
+
+    (this.querySelector("[autofocus]") as HTMLElement | null)?.focus();
+  };
+
+  private _handleAfterHide = () => {
+    this._open = false;
+    fireEvent(this, "closed");
+  };
+
+  public disconnectedCallback(): void {
+    super.disconnectedCallback();
+    this._open = false;
+  }
+
+  static styles = [
+    haStyleScrollbar,
+    css`
+      wa-dialog {
+        --full-width: var(
+          --ha-dialog-width-full,
+          min(
+            95vw,
+            calc(
+              100vw - var(--safe-area-inset-left, var(--ha-space-0)) - var(
+                  --safe-area-inset-right,
+                  var(--ha-space-0)
+                )
+            )
+          )
+        );
+        --width: var(--ha-dialog-width-md, min(580px, var(--full-width)));
+        --spacing: var(--dialog-content-padding, var(--ha-space-6));
+        --show-duration: var(--ha-dialog-show-duration, 200ms);
+        --hide-duration: var(--ha-dialog-hide-duration, 200ms);
+        --ha-dialog-surface-background: var(
+          --card-background-color,
+          var(--ha-color-surface-default)
+        );
+        --wa-color-surface-raised: var(
+          --ha-dialog-surface-background,
+          var(--card-background-color, var(--ha-color-surface-default))
+        );
+        --wa-panel-border-radius: var(
+          --ha-dialog-border-radius,
+          var(--ha-border-radius-3xl)
+        );
+        max-width: var(--ha-dialog-max-width, 100vw);
+        max-width: var(--ha-dialog-max-width, 100svw);
+      }
+
+      :host([width="small"]) wa-dialog {
+        --width: var(--ha-dialog-width-sm, min(320px, var(--full-width)));
+      }
+
+      :host([width="large"]) wa-dialog {
+        --width: var(--ha-dialog-width-lg, min(720px, var(--full-width)));
+      }
+
+      :host([width="full"]) wa-dialog {
+        --width: var(--full-width);
+      }
+
+      wa-dialog::part(dialog) {
+        min-width: var(--width, var(--full-width));
+        max-width: var(--width, var(--full-width));
+        max-height: var(
+          --ha-dialog-max-height,
+          calc(100% - var(--ha-space-20))
+        );
+        position: var(--dialog-surface-position, relative);
+        margin-top: var(--dialog-surface-margin-top, auto);
+        display: flex;
+        flex-direction: column;
+        overflow: hidden;
+      }
+
+      @media all and (max-width: 450px), all and (max-height: 500px) {
+        :host {
+          --ha-dialog-border-radius: var(--ha-space-0);
+        }
+
+        wa-dialog {
+          --full-width: var(--ha-dialog-width-full, 100vw);
+        }
+
+        wa-dialog::part(dialog) {
+          min-height: var(--ha-dialog-min-height, 100vh);
+          min-height: var(--ha-dialog-min-height, 100svh);
+          max-height: var(--ha-dialog-max-height, 100vh);
+          max-height: var(--ha-dialog-max-height, 100svh);
+          padding-top: var(--safe-area-inset-top, var(--ha-space-0));
+          padding-bottom: var(--safe-area-inset-bottom, var(--ha-space-0));
+          padding-left: var(--safe-area-inset-left, var(--ha-space-0));
+          padding-right: var(--safe-area-inset-right, var(--ha-space-0));
+        }
+      }
+
+      .header-title-container {
+        display: flex;
+        align-items: center;
+      }
+
+      .header-title {
+        margin: 0;
+        margin-bottom: 0;
+        color: var(
+          --ha-dialog-header-title-color,
+          var(--ha-color-on-surface-default, var(--primary-text-color))
+        );
+        font-size: var(
+          --ha-dialog-header-title-font-size,
+          var(--ha-font-size-2xl)
+        );
+        line-height: var(
+          --ha-dialog-header-title-line-height,
+          var(--ha-line-height-condensed)
+        );
+        font-weight: var(
+          --ha-dialog-header-title-font-weight,
+          var(--ha-font-weight-normal)
+        );
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+        margin-right: var(--ha-space-3);
+      }
+
+      wa-dialog::part(body) {
+        padding: 0;
+        display: flex;
+        flex-direction: column;
+        max-width: 100%;
+        overflow: hidden;
+      }
+
+      .body {
+        position: var(--dialog-content-position, relative);
+        padding: 0 var(--dialog-content-padding, var(--ha-space-6))
+          var(--dialog-content-padding, var(--ha-space-6))
+          var(--dialog-content-padding, var(--ha-space-6));
+        overflow: auto;
+        flex-grow: 1;
+      }
+      :host([flexcontent]) .body {
+        max-width: 100%;
+        display: flex;
+        flex-direction: column;
+      }
+
+      wa-dialog::part(footer) {
+        padding: var(--ha-space-0);
+      }
+
+      ::slotted([slot="footer"]) {
+        display: flex;
+        padding: var(--ha-space-3) var(--ha-space-4) var(--ha-space-4)
+          var(--ha-space-4);
+        gap: var(--ha-space-3);
+        justify-content: flex-end;
+        align-items: center;
+        width: 100%;
+      }
+    `,
+  ];
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-wa-dialog": HaWaDialog;
+  }
+
+  interface HASSDomEvents {
+    opened: undefined;
+    closed: undefined;
+  }
+}
diff --git a/src/dialogs/restart/dialog-restart.ts b/src/dialogs/restart/dialog-restart.ts
index 06830489f736..26815442c4ca 100644
--- a/src/dialogs/restart/dialog-restart.ts
+++ b/src/dialogs/restart/dialog-restart.ts
@@ -1,7 +1,6 @@
 import "@material/mwc-linear-progress/mwc-linear-progress";
 import {
   mdiAutoFix,
-  mdiClose,
   mdiLifebuoy,
   mdiPower,
   mdiPowerCycle,
@@ -9,16 +8,14 @@ import {
 } from "@mdi/js";
 import type { CSSResultGroup } from "lit";
 import { LitElement, css, html, nothing } from "lit";
-import { customElement, property, query, state } from "lit/decorators";
+import { customElement, property, state } from "lit/decorators";
 import { isComponentLoaded } from "../../common/config/is_component_loaded";
 import { fireEvent } from "../../common/dom/fire_event";
 import "../../components/ha-alert";
 import "../../components/ha-expansion-panel";
 import "../../components/ha-fade-in";
-import "../../components/ha-icon-button";
 import "../../components/ha-icon-next";
-import "../../components/ha-md-dialog";
-import type { HaMdDialog } from "../../components/ha-md-dialog";
+import "../../components/ha-wa-dialog";
 import "../../components/ha-md-list";
 import "../../components/ha-md-list-item";
 import "../../components/ha-spinner";
@@ -58,12 +55,14 @@ class DialogRestart extends LitElement {
   @state()
   private _hostInfo?: HassioHostInfo;
 
-  @query("ha-md-dialog") private _dialog?: HaMdDialog;
+  @state()
+  private _dialogOpen = false;
 
   public async showDialog(): Promise<void> {
     const isHassioLoaded = isComponentLoaded(this.hass, "hassio");
 
     this._open = true;
+    this._dialogOpen = true;
 
     if (isHassioLoaded && !this._hostInfo) {
       this._loadHostInfo();
@@ -92,16 +91,13 @@ class DialogRestart extends LitElement {
   }
 
   private _dialogClosed(): void {
+    this._dialogOpen = false;
     this._open = false;
     this._loadingHostInfo = false;
     this._loadingBackupInfo = false;
     fireEvent(this, "dialog-closed", { dialog: this.localName });
   }
 
-  public closeDialog(): void {
-    this._dialog?.close();
-  }
-
   protected render() {
     if (!this._open) {
       return nothing;
@@ -113,17 +109,13 @@ class DialogRestart extends LitElement {
     const dialogTitle = this.hass.localize("ui.dialogs.restart.heading");
 
     return html`
-      <ha-md-dialog open @closed=${this._dialogClosed}>
-        <ha-dialog-header slot="headline">
-          <ha-icon-button
-            slot="navigationIcon"
-            .label=${this.hass.localize("ui.common.close") ?? "Close"}
-            .path=${mdiClose}
-            @click=${this.closeDialog}
-          ></ha-icon-button>
-          <span slot="title" .title=${dialogTitle}> ${dialogTitle} </span>
-        </ha-dialog-header>
-        <div slot="content" class="content">
+      <ha-wa-dialog
+        .hass=${this.hass}
+        .open=${this._dialogOpen}
+        header-title=${dialogTitle}
+        @closed=${this._dialogClosed}
+      >
+        <div class="content">
           <div class="action-loader">
             ${this._loadingBackupInfo
               ? html`<ha-fade-in .delay=${250}>
@@ -265,12 +257,12 @@ class DialogRestart extends LitElement {
                 </ha-expansion-panel>
               `}
         </div>
-      </ha-md-dialog>
+      </ha-wa-dialog>
     `;
   }
 
   private async _reload() {
-    this.closeDialog();
+    this._dialogOpen = false;
 
     showToast(this, {
       message: this.hass.localize("ui.dialogs.restart.reload.reloading"),
@@ -374,7 +366,7 @@ class DialogRestart extends LitElement {
       return;
     }
 
-    this.closeDialog();
+    this._dialogOpen = false;
 
     let actionFunc;
 
@@ -413,15 +405,9 @@ class DialogRestart extends LitElement {
       haStyle,
       haStyleDialog,
       css`
-        ha-md-dialog {
+        ha-wa-dialog {
           --dialog-content-padding: 0;
         }
-        @media all and (min-width: 550px) {
-          ha-md-dialog {
-            min-width: 500px;
-            max-width: 500px;
-          }
-        }
 
         ha-expansion-panel {
           border-top: 1px solid var(--divider-color);
diff --git a/src/resources/theme/color/semantic.globals.ts b/src/resources/theme/color/semantic.globals.ts
index d99291d83314..e0fa043be759 100644
--- a/src/resources/theme/color/semantic.globals.ts
+++ b/src/resources/theme/color/semantic.globals.ts
@@ -152,6 +152,10 @@ export const semanticColorStyles = css`
     --ha-color-on-success-quiet: var(--ha-color-green-50);
     --ha-color-on-success-normal: var(--ha-color-green-40);
     --ha-color-on-success-loud: var(--white-color);
+
+    /* Surfaces */
+    --ha-color-surface-default: var(--ha-color-neutral-95);
+    --ha-color-on-surface-default: var(--ha-color-neutral-05);
   }
 `;
 
@@ -280,5 +284,9 @@ export const darkSemanticColorStyles = css`
     --ha-color-on-success-quiet: var(--ha-color-green-70);
     --ha-color-on-success-normal: var(--ha-color-green-60);
     --ha-color-on-success-loud: var(--white-color);
+
+    /* Surfaces */
+    --ha-color-surface-default: var(--ha-color-neutral-10);
+    --ha-color-on-surface-default: var(--ha-color-neutral-95);
   }
 `;