feat(ui): raised '+ Add view' sidebar button (mirror of the view wells) with gap-matched bottom spacing; dvh app-shell height for iOS toolbars

4 files changed, 67 insertions, 5 deletions

diff --git a/src/app.css b/src/app.css
index 3f3f8ae..d7e0967 100644
--- a/src/app.css
+++ b/src/app.css
@@ -179,6 +179,48 @@
   }
 }
 
+/* Raised button — the exact mirror of `.inset-well`, for a neutral surface
+   that pops OUT where the wells sink in (the sidebar's "+ Add view" under the
+   view wells). The well = page colour darkened 18%, dark shadow INSIDE under
+   the top edge (inset 0 1px 7px), light catch-line OUTSIDE below (0 1px 0).
+   Mirrored: page colour LIFTED toward the text colour, light highlight INSIDE
+   the top edge (inset 0 1px 0), the dark shadow OUTSIDE below (0 1px 7px),
+   plus a faint top-lit gradient. Pressed → it becomes the well (pushed in). */
+@layer components {
+  .raised-btn {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border: 0;
+    border-radius: var(--radius-box);
+    cursor: pointer;
+    color: color-mix(in srgb, var(--color-primary) 75%, white);
+    background-color: color-mix(in srgb, var(--color-base-100) 90%, var(--color-base-content));
+    background-image: linear-gradient(to bottom, rgb(255 255 255 / 0.06), rgb(0 0 0 / 0.1));
+    box-shadow:
+      inset 0 1px 0 color-mix(in srgb, var(--color-base-content) 18%, transparent),
+      0 1px 7px 0 rgb(0 0 0 / 0.6);
+    transition:
+      filter 120ms ease-out,
+      box-shadow 120ms ease-out;
+  }
+  .raised-btn:hover {
+    filter: brightness(1.12);
+  }
+  .raised-btn:active {
+    filter: none;
+    background-image: none;
+    background-color: color-mix(in srgb, var(--color-base-100) 82%, black);
+    box-shadow:
+      0 1px 0 color-mix(in srgb, var(--color-base-content) 10%, transparent),
+      inset 0 1px 7px 0 rgb(0 0 0 / 0.6);
+  }
+  .raised-btn:focus-visible {
+    outline: 2px solid var(--color-primary);
+    outline-offset: 2px;
+  }
+}
+
 /* Raised — the INVERSE of `.inset-well`, for things that pop OUT of the page
    (the home page's workspace tiles). Where the well has a dark shadow INSIDE
    under its top edge and a light catch-line OUTSIDE below it, a raised surface
@@ -317,6 +359,17 @@ body {
   overflow: hidden;
 }
 
+/* App-shell height. NOT `h-screen` (100vh): on iOS/iPadOS WebKit (Safari,
+   Vivaldi, …) 100vh is the viewport with the browser toolbars RETRACTED, so
+   while they're showing the bottom of the app sits underneath them (the
+   sidebar's last item / the composer looked flush against the bottom edge).
+   100dvh tracks the visible viewport as the toolbars show/hide; 100vh stays as
+   the fallback for engines without dvh (the cascade drops the unknown unit). */
+.h-app {
+  height: 100vh;
+  height: 100dvh;
+}
+
 /* Transcript rows: skip layout + paint for rows scrolled out of view. A long
    turn has hundreds of rows; without this every one is laid out on first
    paint (and on every resize). `contain-intrinsic-size: auto <h>` makes the
diff --git a/src/app/App.svelte b/src/app/App.svelte
index 034f3e7..d557149 100644
--- a/src/app/App.svelte
+++ b/src/app/App.svelte
@@ -88,7 +88,7 @@
   }
 </script>
 
-<main class="relative flex h-screen flex-col overflow-hidden">
+<main class="h-app relative flex flex-col overflow-hidden">
   <!-- Slim header: the tab bar moved into the sidebar (the "Tabs" view), so
        the top row now shows the active tab's title on the left (or "New Tab"
        for an unstarted draft), with the build version + sidebar toggle on
diff --git a/src/features/layout/ui/TilePanels.svelte b/src/features/layout/ui/TilePanels.svelte
index f7e1846..9162b00 100644
--- a/src/features/layout/ui/TilePanels.svelte
+++ b/src/features/layout/ui/TilePanels.svelte
@@ -7,6 +7,7 @@
    * decides persistence.
    */
   import type { LayoutOp, PanelsNode, Path } from "@dispatch/layout-contract";
+  import PlusIcon from "phosphor-svelte/lib/PlusIcon";
   import { viewRegistry } from "../logic/registry";
   import { addPanelOp, firstPanelView, removePanelOp, swapPanelOp } from "../logic/panels-edit";
   import { markerStyle } from "../logic/marker";
@@ -39,8 +40,11 @@
   const addView = $derived(firstPanelView(panelViews));
 </script>
 
+<!-- `shrink-0`: this column is the sidebar's SCROLLED content, so it keeps its
+     natural height — if it shrank to the scroller (min-h-0 in a flex column),
+     its children overflowed it and the trailing margin was never scrollable. -->
 <div
-  class="flex min-h-0 flex-col gap-2"
+  class="flex min-h-0 shrink-0 flex-col gap-2"
   style={renderMarker ? markerStyle(node.marker) : undefined}
 >
   {#each node.panels as panel, idx (idx)}
@@ -78,13 +82,18 @@
   {/each}
 
   {#if addView !== null}
+    <!-- `.raised-btn` (app.css): the mirror of the view wells above it —
+         pops out where they sink in; pressed, it sinks in like them. Height =
+         DaisyUI's default button size (`--size-field` × 10), as the `btn` it
+         replaced; `shrink-0` so the column can never squash it. `mb-2` = the
+         gap between views (`gap-2`), so it doesn't sit tight to the end. -->
     <button
       type="button"
-      class="btn w-full border-none bg-base-200 text-lg hover:bg-base-300"
+      class="raised-btn mb-2 h-[calc(var(--size-field,0.25rem)*10)] w-full shrink-0"
       aria-label="Add view"
       onclick={() => addView !== null && onEdit([addPanelOp(path, addView)])}
     >
-      +
+      <PlusIcon size={18} weight="bold" aria-hidden="true" />
     </button>
   {/if}
 </div>
diff --git a/src/features/workspaces/ui/WorkspacesHome.svelte b/src/features/workspaces/ui/WorkspacesHome.svelte
index b330e1d..630c67f 100644
--- a/src/features/workspaces/ui/WorkspacesHome.svelte
+++ b/src/features/workspaces/ui/WorkspacesHome.svelte
@@ -249,7 +249,7 @@
 
 <svelte:window onkeydown={handleKeydown} />
 
-<div class="flex h-screen w-full flex-col">
+<div class="h-app flex w-full flex-col">
   <HomeHeader
     compact={geometry.mode === "tall"}
     withPlugins={plugins !== undefined}