diff --git a/client/src/components/CatalogViewer.vue b/client/src/components/CatalogViewer.vue
index 40a8ca3..996cfb4 100644
--- a/client/src/components/CatalogViewer.vue
+++ b/client/src/components/CatalogViewer.vue
@@ -255,6 +255,7 @@ watch(
       :index="index"
       :single-page="singlePage"
       :flip-ms="flipMs"
+      :immersive="immersive"
       @update:index="index = $event"
       @fallback="fallbackSlide = true"
     />
@@ -265,6 +266,7 @@ watch(
       :mode="visualEffect === 'fade' ? 'fade' : visualEffect === 'card' ? 'card' : 'slide'"
       :zoom="zoom"
       :flip-ms="flipMs"
+      :immersive="immersive"
       @next="onUserNav(next)"
       @prev="onUserNav(prev)"
     />
diff --git a/client/src/components/effects/CssPageEffect.vue b/client/src/components/effects/CssPageEffect.vue
index 27ff2cd..230e2d8 100644
--- a/client/src/components/effects/CssPageEffect.vue
+++ b/client/src/components/effects/CssPageEffect.vue
@@ -7,6 +7,7 @@ const props = defineProps<{
   mode: "slide" | "fade" | "card";
   zoom: boolean;
   flipMs: number;
+  immersive?: boolean;
 }>();
 
 const emit = defineEmits<{
@@ -54,7 +55,7 @@ function onPointerUp(ev: PointerEvent) {
 <template>
   <div
     class="fx-stage"
-    :class="[mode, { 'zoom-in': zoom }]"
+    :class="[mode, { 'zoom-in': zoom, fill: immersive }]"
     :style="{ '--flip-ms': `${flipMs}ms` }"
     @pointerdown.prevent="onPointerDown"
     @pointerup.prevent="onPointerUp"
@@ -81,6 +82,17 @@ function onPointerUp(ev: PointerEvent) {
   overflow: visible;
 }
 
+.fx-stage.fill {
+  width: 100%;
+  height: 100%;
+  max-height: none;
+}
+
+.fx-stage.fill .page-img {
+  max-width: min(100vw, 100%);
+  max-height: 100dvh;
+}
+
 .fx-stage.card {
   perspective: 2600px;
 }
diff --git a/client/src/components/effects/MagazineEffect.vue b/client/src/components/effects/MagazineEffect.vue
index d3720d6..023c1ac 100644
--- a/client/src/components/effects/MagazineEffect.vue
+++ b/client/src/components/effects/MagazineEffect.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { nextTick, onBeforeUnmount, ref, watch } from "vue";
+import { nextTick, onBeforeUnmount, onMounted, ref, watch } from "vue";
 import { PageFlip } from "page-flip";
 
 const props = defineProps<{
@@ -7,6 +7,7 @@ const props = defineProps<{
   index: number;
   singlePage: boolean;
   flipMs: number;
+  immersive?: boolean;
 }>();
 
 const emit = defineEmits<{
@@ -17,10 +18,43 @@ const emit = defineEmits<{
 const host = ref<HTMLElement | null>(null);
 const outer = ref<HTMLElement | null>(null);
 const mountKey = ref(0);
+const fitScale = ref(1);
 let book: PageFlip | null = null;
 let ignore = false;
 let prepared: string[] = [];
 let makeGen = 0;
+let fitTimer = 0;
+
+function updateFitScale() {
+  if (!props.immersive || !host.value || !outer.value) {
+    fitScale.value = 1;
+    return;
+  }
+  const w = host.value.offsetWidth;
+  const h = host.value.offsetHeight;
+  const maxW = outer.value.clientWidth;
+  const maxH = outer.value.clientHeight;
+  if (w < 8 || h < 8 || maxW < 8 || maxH < 8) {
+    fitScale.value = 1;
+    return;
+  }
+    const pad = 16;
+    const s = Math.min((maxW - pad) / w, (maxH - pad) / h);
+    if (!Number.isFinite(s) || s <= 0) {
+      fitScale.value = 1;
+      return;
+    }
+    fitScale.value = Math.min(s, 8);
+}
+
+function scheduleFit() {
+  window.clearTimeout(fitTimer);
+  fitTimer = window.setTimeout(() => {
+    void nextTick().then(() => {
+      requestAnimationFrame(updateFitScale);
+    });
+  }, 40);
+}
 
 function loadImage(src: string): Promise<HTMLImageElement> {
   return new Promise((resolve, reject) => {
@@ -153,6 +187,7 @@ async function makeBook() {
       });
     });
     for (const url of previous) URL.revokeObjectURL(url);
+    scheduleFit();
   } catch {
     emit("fallback");
   }
@@ -178,7 +213,20 @@ watch(
   },
 );
 
+watch(
+  () => props.immersive,
+  () => {
+    scheduleFit();
+  },
+);
+
+onMounted(() => {
+  window.addEventListener("resize", scheduleFit);
+});
+
 onBeforeUnmount(() => {
+  window.removeEventListener("resize", scheduleFit);
+  window.clearTimeout(fitTimer);
   try {
     book?.destroy();
   } catch {
@@ -220,7 +268,7 @@ function onPointerUp(ev: PointerEvent) {
 </script>
 
 <template>
-  <div class="magazine-frame" dir="ltr">
+  <div class="magazine-frame" dir="ltr" :class="{ fill: immersive }">
     <div class="magazine-glow"></div>
     <div
       ref="outer"
@@ -228,7 +276,12 @@ function onPointerUp(ev: PointerEvent) {
       @pointerdown.prevent="onPointerDown"
       @pointerup.prevent="onPointerUp"
     >
-      <div :key="mountKey" ref="host" class="magazine-host"></div>
+      <div
+        :key="mountKey"
+        ref="host"
+        class="magazine-host"
+        :style="{ transform: `scaleX(-1) scale(${fitScale})` }"
+      ></div>
     </div>
   </div>
 </template>
@@ -256,11 +309,21 @@ function onPointerUp(ev: PointerEvent) {
   justify-content: center;
   direction: ltr;
 }
+.magazine-frame.fill {
+  width: 100%;
+  max-width: none;
+  height: 100%;
+}
+.magazine-frame.fill .magazine-outer {
+  width: 100%;
+  height: 100%;
+}
 .magazine-host {
   width: max-content;
   height: max-content;
-  max-width: 100%;
+  max-width: none;
   transform: scaleX(-1);
+  transform-origin: center center;
   filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.55));
 }
 </style>
diff --git a/client/src/styles.css b/client/src/styles.css
index 6f64d17..243e1dd 100644
--- a/client/src/styles.css
+++ b/client/src/styles.css
@@ -415,9 +415,25 @@ a {
   display: none !important;
 }
 
+.stage-page.immersive {
+  height: 100dvh;
+  overflow: hidden;
+}
+
 .stage-page.immersive .viewer-wrap {
   padding: 0 !important;
   border-radius: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 100dvh;
+  height: 100dvh;
+}
+
+.stage-page.immersive .magazine-frame,
+.stage-page.immersive .fx-stage {
+  width: 100%;
+  height: 100%;
 }
 
 .tap-exit {