diff --git a/polylan_submitter/src/Planning.vue b/polylan_submitter/src/Planning.vue
index 4356a95..ed457e2 100644
--- a/polylan_submitter/src/Planning.vue
+++ b/polylan_submitter/src/Planning.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
-import { computed } from "vue";
+import { computed, useTemplateRef } from "vue";
 import { useI18n } from "vue-i18n";
-import { useTitle } from "@vueuse/core";
+import { useElementSize, useTitle } from "@vueuse/core";
 import { useQuery } from "@tanstack/vue-query";
 import { eventPlanningQuery } from "@/queries";
 import type { PlanningSlotOut } from "./api/types.gen";
@@ -20,12 +20,19 @@ useTitle(computed(() => t("planning.title")));
 const { data: slots, isPending: loading } = useQuery(eventPlanningQuery(props.eventPath));
 
 const HOUR = 3600e3;
-const HOUR_PX = 104; // a 2h slot ends up close to the 2:3 cover ratio
+// Hour height per px of column width: a 2h slot ends up close to the 2:3 cover ratio
+const HOUR_RATIO = 104 / 150;
 const BREAK_PX = 34;
 const DAY_PX = 32;
 const AXIS_PX = 56;
-const COL_PX = 150;
+// Columns shrink to fit the page, the planning only scrolls sideways below the min
+const MIN_COL_PX = 80;
+const MAX_COL_PX = 150;
 const GAP_PX = 10;
+// The multi-anims column is the big one, its covers 1.75x the size of the others
+const WIDE_RATIO = 1.75;
+// Room on the left for the day names, they stick out of the time axis
+const DAY_LABEL_ROOM_PX = 120;
 // Empty runs at least this long (nights) get squashed into a thin break
 const MIN_BREAK_HOURS = 3;
 
@@ -48,6 +55,9 @@ interface Placed {
   when: string;
 }
 
+const scroller = useTemplateRef<HTMLElement>("scroller");
+const { width: available } = useElementSize(scroller);
+
 const layout = computed(() => {
   const list = (slots.value ?? []).map((slot) => ({
     slot,
@@ -56,6 +66,16 @@ const layout = computed(() => {
   }));
   if (!list.length) return null;
 
+  // Unused columns are dropped, the multi-anims ones are wider
+  const columnIds = [...new Set(list.map(({ slot }) => slot.column))].sort((a, b) => a - b);
+  const isWide = (id: number) => list.some(({ slot }) => slot.column === id && slot.is_multi_anims);
+  const wideCount = columnIds.filter(isWide).length;
+  const fit =
+    (available.value - DAY_LABEL_ROOM_PX - AXIS_PX - (columnIds.length - 1) * GAP_PX) /
+    (columnIds.length + (WIDE_RATIO - 1) * wideCount);
+  const colPx = available.value ? Math.min(MAX_COL_PX, Math.max(MIN_COL_PX, fit)) : MAX_COL_PX;
+  const hourPx = colPx * HOUR_RATIO;
+
   // Multi-anims run the whole event, only the other slots decide what's busy
   const singles = list.filter(({ slot }) => !slot.is_multi_anims);
   const busy = (t: number) => singles.some(({ b, e }) => b < t + HOUR && e > t);
@@ -75,8 +95,8 @@ const layout = computed(() => {
         y += DAY_PX;
         lastDay = day;
       }
-      segments.push({ from: t, to: t + HOUR, y, h: HOUR_PX, kind: "hour" });
-      y += HOUR_PX;
+      segments.push({ from: t, to: t + HOUR, y, h: hourPx, kind: "hour" });
+      y += hourPx;
       t += HOUR;
       continue;
     }
@@ -84,7 +104,7 @@ const layout = computed(() => {
     while (u < end && !busy(u)) u += HOUR;
     const hours = (u - t) / HOUR;
     const isBreak = hours >= MIN_BREAK_HOURS;
-    const h = isBreak ? BREAK_PX : HOUR_PX * hours;
+    const h = isBreak ? BREAK_PX : hourPx * hours;
     segments.push({ from: t, to: u, y, h, kind: isBreak ? "break" : "idle" });
     y += h;
     t = u;
@@ -116,8 +136,6 @@ const layout = computed(() => {
     .filter((s) => s.kind === "break")
     .map((s) => ({ y: s.y, h: s.h, label: `${fmtTime.format(s.from)} – ${fmtTime.format(s.to)}` }));
 
-  // Unused columns are dropped
-  const columnIds = [...new Set(list.map(({ slot }) => slot.column))].sort((a, b) => a - b);
   let left = AXIS_PX;
   const columns = columnIds.map((id) => {
     const placed = list
@@ -128,8 +146,7 @@ const layout = computed(() => {
         height: yOf(e) - yOf(b) - 6,
         when: `${fmtTime.format(b)} – ${fmtTime.format(e)}`,
       }));
-    // The multi-anims column is the big one, twice as wide
-    const width = placed.some(({ slot }) => slot.is_multi_anims) ? 2 * COL_PX + GAP_PX : COL_PX;
+    const width = isWide(id) ? WIDE_RATIO * colPx : colPx;
     const column = { left, width, placed };
     left += width + GAP_PX;
     return column;
@@ -148,7 +165,8 @@ const layout = computed(() => {
 
 <template>
   <div class="flex-1 bg-base-300 flex justify-center px-4 py-12">
-    <div class="w-full max-w-7xl">
+    <!-- min-w-0: lets the planning scroll sideways instead of overflowing the page -->
+    <div class="w-full max-w-7xl min-w-0">
       <div class="text-center mb-12">
         <h1 class="text-5xl font-bold mb-4">{{ t("planning.title") }}</h1>
       </div>
@@ -161,8 +179,13 @@ const layout = computed(() => {
         {{ t("planning.empty") }}
       </p>
 
-      <div v-else class="overflow-x-auto pb-4">
-        <div class="relative mx-auto" :style="{ width: `${layout.width}px`, height: `${layout.height}px` }">
+      <!-- pr/pt/pb: room for the Fils rouges glow, the scroll box would clip it -->
+      <div v-else ref="scroller" class="overflow-x-auto pr-10 pt-4 pb-10">
+        <div class="relative" :style="{
+          width: `${layout.width}px`,
+          height: `${layout.height}px`,
+          marginLeft: `max(${DAY_LABEL_ROOM_PX}px, (100% - ${layout.width}px) / 2)`,
+        }">
           <!-- Time axis: a header row per day, hour ticks on the side -->
           <!-- Above the cards: slots running past midnight go over the header row -->
           <div v-for="day in layout.days" :key="`day-${day.y}`"
diff --git a/polylan_submitter/src/components/PlanningMultiSlot.vue b/polylan_submitter/src/components/PlanningMultiSlot.vue
index c052234..3300a11 100644
--- a/polylan_submitter/src/components/PlanningMultiSlot.vue
+++ b/polylan_submitter/src/components/PlanningMultiSlot.vue
@@ -30,7 +30,7 @@ const offset = computed(() => {
       </div>
 
       <div ref="track" class="relative flex-1">
-        <div ref="stack" class="absolute inset-x-0 grid grid-cols-2 gap-3"
+        <div ref="stack" class="absolute inset-x-0 flex flex-col gap-3"
           :style="{ transform: `translateY(${offset}px)` }">
           <component :is="game.store_url ? 'a' : 'div'" v-for="game in entry.games" :key="game.name"
             :href="game.store_url || undefined" target="_blank" rel="noopener noreferrer"