diff --git a/frontend/components/AppDrawer.vue b/frontend/components/AppDrawer.vue
index 01d9776..553721e 100644
--- a/frontend/components/AppDrawer.vue
+++ b/frontend/components/AppDrawer.vue
@@ -9,6 +9,13 @@
           <h2 class="text-[32px] font-semibold text-primary-500">
             {{ title }}
           </h2>
+          <button
+            type="button"
+            class="rounded-md p-1 text-primary-500 hover:text-secondary-500"
+            @click="close"
+          >
+            <Icon name="mdi:close" size="24"/>
+          </button>
         </div>
         <div class="min-h-0 flex-1 overflow-y-auto px-[20px] pb-4">
           <slot />
diff --git a/frontend/components/AppTopNav.vue b/frontend/components/AppTopNav.vue
index 115d5f3..1f2b7e3 100644
--- a/frontend/components/AppTopNav.vue
+++ b/frontend/components/AppTopNav.vue
@@ -1,7 +1,14 @@
 <template>
-    <header ref="headerRef" class="border-b border-neutral-200 bg-primary-500 p-5 text-white">
-        <div class="flex h-full items-center justify-end">
-            <div class="flex gap-6 text-xl text-white">
+    <header ref="headerRef" class="border-b border-neutral-200 bg-primary-500 px-4 py-3 text-white lg:p-5">
+        <div class="flex h-full items-center justify-between lg:justify-end">
+            <button
+                type="button"
+                class="rounded-md p-1 text-white hover:text-neutral-200 lg:hidden"
+                @click="$emit('toggleSidebar')"
+            >
+                <Icon name="mdi:menu" size="28"/>
+            </button>
+            <div class="flex gap-4 text-xl text-white lg:gap-6">
                 <div v-if="isAdmin" ref="bellRoot" class="relative">
                     <button type="button" class="relative self-center cursor-pointer flex items-center" @click="toggleNotifications">
                         <Icon name="mdi:bell-plus" size="36"/>
@@ -15,8 +22,8 @@
 
                     <div
                         v-if="isNotificationsOpen"
-                        class="fixed right-[20px] z-30 w-[400px] rounded-md border border-neutral-200 bg-white text-neutral-800 shadow-lg"
-                        :style="{ top: `${navbarBottom + 20}px` }"
+                        class="fixed right-2 z-30 w-[calc(100vw-1rem)] max-w-[400px] rounded-md border border-neutral-200 bg-white text-neutral-800 shadow-lg lg:right-[20px]"
+                        :style="{ top: `${navbarBottom + 10}px` }"
                     >
                         <div class="px-3 pt-3 pb-6 text-xl font-semibold">
                             Notifications
@@ -66,7 +73,7 @@
                 <div ref="userMenuRoot" class="relative flex gap-4">
                     <button type="button" class="flex items-center gap-4 cursor-pointer" @click="toggleUserMenu">
                         <Icon name="mdi:account-circle-outline" class="self-center" size="36"/>
-                        <p class="self-center">{{ user?.username }}</p>
+                        <p class="hidden self-center sm:block">{{ user?.username }}</p>
                     </button>
                     <div
                         v-if="isUserMenuOpen"
@@ -103,6 +110,10 @@ defineProps<{
     user?: User
 }>()
 
+defineEmits<{
+    (event: 'toggleSidebar'): void
+}>()
+
 const formatTimeAgo = (dateString: string): string => {
     const date = new Date(dateString)
     const now = new Date()
diff --git a/frontend/components/hours/HoursDayView.vue b/frontend/components/hours/HoursDayView.vue
index da69e4f..4230886 100644
--- a/frontend/components/hours/HoursDayView.vue
+++ b/frontend/components/hours/HoursDayView.vue
@@ -1,6 +1,174 @@
 <template>
     <div class="bg-white overflow-hidden flex min-h-0 flex-col">
-        <div class="overflow-y-auto min-h-0">
+        <!-- Mobile card layout -->
+        <div class="overflow-y-auto min-h-0 space-y-3 lg:hidden">
+            <div
+                v-for="employee in employees"
+                :key="'m-' + employee.id"
+                class="rounded-md border border-primary-500 bg-white p-4"
+            >
+                <!-- Employee name + site -->
+                <div class="mb-3">
+                    <p class="text-md font-bold text-primary-500 truncate">
+                        {{ employee.firstName }} {{ employee.lastName }}
+                        <span class="font-normal text-neutral-600 text-sm">({{ contractLabel(employee) }})</span>
+                    </p>
+                    <p class="text-sm text-neutral-500 truncate">
+                        {{ employee.site?.name ?? 'Sans site' }}<span v-if="employee.currentContractNature"> — {{ contractNatureLabel(employee.currentContractNature) }}</span>
+                    </p>
+                </div>
+
+                <!-- Absence / Holiday / Formation pills -->
+                <div class="mb-3 flex flex-col gap-1">
+                    <p
+                        v-if="getRowAbsenceLabel(employee.id)"
+                        class="rounded-md px-2 py-1 text-xs text-white truncate"
+                        :style="getRowAbsenceStyle(employee.id)"
+                    >
+                        {{ getRowAbsenceLabel(employee.id) }}
+                    </p>
+                    <p
+                        v-else
+                        class="text-xs text-neutral-400"
+                    >
+                        Aucune absence
+                    </p>
+                    <p
+                        v-if="isHoliday"
+                        class="rounded-md px-2 py-1 text-xs text-sky-900 inline-flex items-center gap-1"
+                        style="background-color: #b3e5fc"
+                    >
+                        <Icon name="mdi:calendar-star" size="14" class="shrink-0"/>
+                        <span class="truncate">{{ holidayLabel || 'Férié' }}</span>
+                    </p>
+                    <p
+                        v-if="hasRowFormation(employee.id)"
+                        class="rounded-md px-2 py-1 text-xs text-white bg-indigo-500 inline-flex items-center gap-1"
+                    >
+                        <Icon name="mdi:school-outline" size="14" class="shrink-0"/>
+                        <span class="truncate">{{ getRowFormationLabel(employee.id) }}</span>
+                    </p>
+                    <button
+                        v-if="!hasRowFormation(employee.id)"
+                        type="button"
+                        class="self-start text-xs font-semibold underline"
+                        :class="isRowLocked(employee.id) || !hasContractAtSelectedDate(employee.id) ? 'text-neutral-400 cursor-not-allowed' : 'text-primary-500 cursor-pointer'"
+                        :disabled="isRowLocked(employee.id) || !hasContractAtSelectedDate(employee.id)"
+                        @click="onAbsenceClick(employee.id)"
+                    >
+                        Modifier
+                    </button>
+                </div>
+
+                <!-- Time inputs (TIME tracking) -->
+                <div v-if="isTimeTracking(employee)" class="space-y-2">
+                    <div class="grid grid-cols-2 gap-2">
+                        <div>
+                            <label class="text-xs text-neutral-500">Début matin</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].morningFrom"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'AM'))"
+                            />
+                        </div>
+                        <div>
+                            <label class="text-xs text-neutral-500">Fin matin</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].morningTo"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'AM'))"
+                            />
+                        </div>
+                    </div>
+                    <div class="grid grid-cols-2 gap-2">
+                        <div>
+                            <label class="text-xs text-neutral-500">Début après-midi</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].afternoonFrom"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'PM'))"
+                            />
+                        </div>
+                        <div>
+                            <label class="text-xs text-neutral-500">Fin après-midi</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].afternoonTo"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'PM'))"
+                            />
+                        </div>
+                    </div>
+                    <div class="grid grid-cols-2 gap-2">
+                        <div>
+                            <label class="text-xs text-neutral-500">Début soir</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].eveningFrom"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isEveningLockedByAbsence(employee.id))"
+                            />
+                        </div>
+                        <div>
+                            <label class="text-xs text-neutral-500">Fin soir</label>
+                            <TimeSelect
+                                v-model="rows[employee.id].eveningTo"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isEveningLockedByAbsence(employee.id))"
+                            />
+                        </div>
+                    </div>
+                    <div class="flex gap-4 pt-1 text-sm font-semibold text-primary-500">
+                        <span>Jour : {{ formatMinutes(getRowMetrics(employee.id).dayMinutes) }}</span>
+                        <span>Nuit : {{ formatMinutes(getRowMetrics(employee.id).nightMinutes) }}</span>
+                        <span>Total : {{ formatMinutes(getRowMetrics(employee.id).totalMinutes) }}</span>
+                    </div>
+                </div>
+
+                <!-- Presence tracking -->
+                <div v-else-if="isPresenceTracking(employee)" class="space-y-2">
+                    <div class="flex items-center gap-4">
+                        <label class="flex items-center gap-2 text-sm">
+                            <input
+                                v-model="rows[employee.id].isPresentMorning"
+                                type="checkbox"
+                                class="h-4 w-4 cursor-pointer"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'AM'))"
+                            />
+                            Matin
+                        </label>
+                        <label class="flex items-center gap-2 text-sm">
+                            <input
+                                v-model="rows[employee.id].isPresentAfternoon"
+                                type="checkbox"
+                                class="h-4 w-4 cursor-pointer"
+                                :disabled="!hasContractAtSelectedDate(employee.id) || isRowLocked(employee.id) || (!isAdmin && isHalfLockedByAbsence(employee.id, 'PM'))"
+                            />
+                            Après-midi
+                        </label>
+                    </div>
+                    <p class="text-sm font-semibold text-primary-500">Total : {{ getPresenceDayValue(employee.id) }}</p>
+                </div>
+
+                <!-- Validation status (non-admin) -->
+                <div v-if="!isAdmin" class="mt-3 flex gap-4 text-xs border-t border-neutral-200 pt-2">
+                    <span v-if="!isSiteManager" class="flex items-center gap-1">
+                        <Icon name="mdi:check-circle-outline" size="14" :class="rows[employee.id]?.isSiteValid ? 'text-green-600' : 'text-neutral-400'"/>
+                        Validation site : <span :class="rows[employee.id]?.isSiteValid ? 'font-semibold text-green-600' : 'text-neutral-500'">{{ rows[employee.id]?.isSiteValid ? 'Validé' : 'En attente' }}</span>
+                    </span>
+                    <span class="flex items-center gap-1">
+                        <Icon name="mdi:check-circle-outline" size="14" :class="rows[employee.id]?.isValid ? 'text-green-600' : 'text-neutral-400'"/>
+                        Validation RH : <span :class="rows[employee.id]?.isValid ? 'font-semibold text-green-600' : 'text-neutral-500'">{{ rows[employee.id]?.isValid ? 'Validé' : 'En attente' }}</span>
+                    </span>
+                </div>
+
+                <!-- Validation checkbox (admin) -->
+                <div v-if="isAdmin" class="mt-3 flex items-center gap-2 text-sm">
+                    <input
+                        :checked="rows[employee.id]?.isValid ?? false"
+                        type="checkbox"
+                        class="h-4 w-4 cursor-pointer"
+                        @change="onToggleValidation(employee.id, ($event.target as HTMLInputElement).checked)"
+                    />
+                    <span class="text-neutral-700 font-semibold">Valider</span>
+                </div>
+            </div>
+        </div>
+
+        <!-- Desktop table layout -->
+        <div class="overflow-y-auto min-h-0 hidden lg:block">
             <div
                 class="grid w-full min-w-0 gap-1 border border-black bg-tertiary-500 px-4 py-3 text-sm font-semibold text-black rounded-t-md sticky top-0 z-10"
                 :style="{ gridTemplateColumns: dayGridCols }"
diff --git a/frontend/components/hours/HoursToolbar.vue b/frontend/components/hours/HoursToolbar.vue
index 9b0fd29..f96e236 100644
--- a/frontend/components/hours/HoursToolbar.vue
+++ b/frontend/components/hours/HoursToolbar.vue
@@ -1,17 +1,68 @@
 <template>
-  <div class="py-6 flex flex-col gap-3">
-      <div class="flex gap-4">
+  <div class="py-4 flex flex-col gap-3 lg:py-6">
+      <!-- Desktop: filters row -->
+      <div class="hidden lg:flex lg:gap-4">
           <SiteFilterSelector v-if="sites.length > 0 && isAdmin" v-model="selectedSiteIds" :sites="sites" />
-          <div v-if="isAdmin" class="w-80 max-w-full">
+          <div v-if="isAdmin" class="w-80">
               <EmployeeNameFilterInput v-model="employeeFilter" />
           </div>
       </div>
 
-    <div class="flex justify-between items-center gap-4">
-      <div class="flex gap-4 flex-wrap">
+      <!-- Mobile: search + filter button -->
+      <div v-if="isAdmin" class="flex gap-2 lg:hidden">
+          <div class="flex-1 min-w-0">
+              <EmployeeNameFilterInput v-model="employeeFilter" />
+          </div>
+          <button
+            type="button"
+            class="flex h-10 w-10 shrink-0 items-center justify-center rounded-md border border-primary-500 bg-white text-primary-500"
+            @click="filtersDrawerOpen = true"
+          >
+              <Icon name="mdi:filter-variant" size="22"/>
+          </button>
+      </div>
+
+      <!-- Mobile filters drawer -->
+      <AppDrawer v-model="filtersDrawerOpen" title="Filtres">
+          <div class="space-y-6">
+              <div v-if="sites.length > 0 && isAdmin">
+                  <label class="text-md font-semibold text-neutral-700">Sites</label>
+                  <div class="mt-2">
+                      <SiteFilterSelector v-model="selectedSiteIds" :sites="sites" />
+                  </div>
+              </div>
+              <div v-if="isAdmin">
+                  <label class="text-md font-semibold text-neutral-700">Vue</label>
+                  <div class="mt-2 inline-flex h-10 w-full overflow-hidden rounded-md border border-primary-500 bg-white">
+                      <button
+                        type="button"
+                        class="flex-1 inline-flex items-center justify-center gap-2 px-4 py-2 text-sm font-semibold"
+                        :class="viewModeButtonClass('day')"
+                        @click="viewMode = 'day'; filtersDrawerOpen = false"
+                      >
+                          <Icon name="mdi:calendar-clock" />
+                          Jour
+                      </button>
+                      <button
+                        type="button"
+                        class="flex-1 inline-flex items-center justify-center gap-2 border-l border-primary-500 px-4 py-2 text-sm font-semibold"
+                        :class="viewModeButtonClass('week')"
+                        @click="viewMode = 'week'; filtersDrawerOpen = false"
+                      >
+                          <Icon name="mdi:calendar-week" />
+                          Semaine
+                      </button>
+                  </div>
+              </div>
+          </div>
+      </AppDrawer>
+
+    <!-- Date navigation -->
+    <div class="flex flex-col gap-3 lg:flex-row lg:justify-between lg:items-center lg:gap-4">
+      <div class="flex flex-col gap-3 lg:flex-row lg:flex-wrap lg:gap-4">
       <div
         v-if="viewMode === 'day'"
-        class="inline-flex h-10 w-[320px] overflow-hidden rounded-md border border-primary-500 bg-white"
+        class="inline-flex h-10 w-full overflow-hidden rounded-md border border-primary-500 bg-white lg:w-[320px]"
       >
         <button
           type="button"
@@ -41,7 +92,7 @@
 
       <div
         v-else
-        class="inline-flex h-10 w-[320px] overflow-hidden rounded-md border border-primary-500 bg-white"
+        class="inline-flex h-10 w-full overflow-hidden rounded-md border border-primary-500 bg-white lg:w-[320px]"
       >
         <button
           type="button"
@@ -70,7 +121,7 @@
       </div>
 
       <PeriodStepperPicker
-        width-class="w-[320px]"
+        width-class="w-full lg:w-[320px]"
         :label="formattedSelectedDate"
         :picker-type="viewMode === 'week' ? 'week' : 'date'"
         :picker-value="pickerValue"
@@ -82,7 +133,8 @@
       />
       </div>
 
-      <div v-if="isAdmin" class="inline-flex h-10 overflow-hidden rounded-md border border-primary-500 bg-white">
+      <!-- Desktop: view mode toggle -->
+      <div v-if="isAdmin" class="hidden lg:inline-flex h-10 overflow-hidden rounded-md border border-primary-500 bg-white">
         <button
           type="button"
           class="inline-flex items-center gap-2 px-4 py-2 text-sm font-semibold active:scale-[0.98] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500/40"
@@ -106,7 +158,7 @@
 
     <div
       v-if="isAdmin && viewMode === 'week' && absenceTypes.length > 0"
-      class="flex flex-wrap items-center gap-6"
+      class="hidden lg:flex flex-wrap items-center gap-6"
     >
       <p class="font-bold">Légende :</p>
       <div v-for="type in absenceTypes" :key="type.id" class="flex items-center gap-2">
@@ -123,6 +175,7 @@ import type { AbsenceType } from '~/services/dto/absence-type'
 import EmployeeNameFilterInput from '~/components/EmployeeNameFilterInput.vue'
 import SiteFilterSelector from '~/components/SiteFilterSelector.vue'
 import PeriodStepperPicker from '~/components/PeriodStepperPicker.vue'
+import AppDrawer from '~/components/AppDrawer.vue'
 import { weekInputValueToYmd, ymdToWeekInputValue } from '~/utils/date'
 
 const selectedDate = defineModel<string>('selectedDate', { required: true })
@@ -150,6 +203,8 @@ const emit = defineEmits<{
   (e: 'shift-date', value: number): void
 }>()
 
+const filtersDrawerOpen = ref(false)
+
 const pickerValue = computed(() => {
   if (viewMode.value === 'week') return ymdToWeekInputValue(selectedDate.value)
   return selectedDate.value
diff --git a/frontend/components/hours/HoursWeekView.vue b/frontend/components/hours/HoursWeekView.vue
index 2a629a9..7e51ab5 100644
--- a/frontend/components/hours/HoursWeekView.vue
+++ b/frontend/components/hours/HoursWeekView.vue
@@ -1,7 +1,71 @@
 <template>
   <div class="bg-white overflow-hidden flex min-h-0 flex-col">
     <div v-if="isWeekLoading" class="p-6 text-md text-neutral-600">Chargement de la semaine...</div>
-    <div v-else class="overflow-y-auto min-h-0">
+
+    <!-- Mobile cards -->
+    <div v-else class="overflow-y-auto min-h-0 space-y-3 lg:hidden">
+      <div
+        v-for="row in weeklySummary?.rows ?? []"
+        :key="'m-' + row.employeeId"
+        class="rounded-md border border-primary-500 bg-white p-4"
+      >
+        <div class="mb-3">
+          <p class="text-md font-bold text-primary-500 truncate">
+            {{ row.firstName }} {{ row.lastName }}
+            <span class="font-normal text-neutral-600 text-sm">({{ row.contractName ?? '-' }})</span>
+          </p>
+          <p class="text-xs text-neutral-500 truncate">
+            {{ row.siteName ?? 'Sans site' }}<span v-if="row.contractNature"> — {{ contractNatureLabel(row.contractNature) }}</span>
+          </p>
+        </div>
+
+        <!-- Daily breakdown -->
+        <div class="mb-3 space-y-1">
+          <div
+            v-for="(daily, i) in row.daily"
+            :key="daily.date"
+            class="flex items-center justify-between rounded-md px-2 py-1 text-xs"
+            :class="daily.hasAbsence ? 'text-white' : 'text-primary-500'"
+            :style="getDailyCellStyle(daily)"
+          >
+            <span class="font-semibold">{{ weekDayHeaders[i]?.label ?? '' }}</span>
+            <span v-if="row.trackingMode === 'PRESENCE'">{{ daily.present ?? 0 }}</span>
+            <span v-else>J {{ formatMinutes(daily.dayMinutes) }} / N {{ formatMinutes(daily.nightMinutes) }}</span>
+          </div>
+        </div>
+
+        <!-- Weekly totals -->
+        <div class="border-t border-neutral-200 pt-2 grid grid-cols-2 gap-x-4 gap-y-1 text-xs">
+          <div class="flex justify-between">
+            <span class="text-neutral-500">Total sem.</span>
+            <span class="font-bold text-primary-500">{{ row.trackingMode === 'PRESENCE' ? (row.weeklyPresenceCount ?? 0) : formatMinutes(row.weeklyTotalMinutes) }}</span>
+          </div>
+          <div class="flex justify-between">
+            <span class="text-neutral-500">H. supp.</span>
+            <span class="font-bold text-primary-500">{{ row.trackingMode === 'PRESENCE' ? '-' : formatMinutes(row.weeklyOvertimeTotalMinutes ?? 0) }}</span>
+          </div>
+          <div v-if="row.trackingMode !== 'PRESENCE' && !isInterimContract(row.contractType)" class="flex justify-between">
+            <span class="text-neutral-500">+25%</span>
+            <span class="font-bold text-primary-500">{{ formatMinutes(row.weeklyOvertime25Minutes ?? 0) }}</span>
+          </div>
+          <div v-if="row.trackingMode !== 'PRESENCE' && !isInterimContract(row.contractType)" class="flex justify-between">
+            <span class="text-neutral-500">+50%</span>
+            <span class="font-bold text-primary-500">{{ formatMinutes(row.weeklyOvertime50Minutes ?? 0) }}</span>
+          </div>
+          <div v-if="row.trackingMode !== 'PRESENCE' && !isInterimContract(row.contractType)" class="flex justify-between">
+            <span class="text-neutral-500">Récup.</span>
+            <span class="font-bold text-primary-500">{{ formatMinutes(row.weeklyRecoveryMinutes ?? 0) }}</span>
+          </div>
+          <div v-if="(row.weeklyNightBasketCount ?? 0) > 0" class="flex justify-between">
+            <span class="text-neutral-500">Panier nuit</span>
+            <span class="font-bold text-primary-500">{{ row.weeklyNightBasketCount }}</span>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Desktop table -->
+    <div v-if="!isWeekLoading" class="overflow-y-auto min-h-0 hidden lg:block">
       <div
         class="grid w-full min-w-0 gap-1 border border-black bg-tertiary-500 px-4 py-3 text-sm font-semibold text-black rounded-t-md sticky top-0 z-10"
         :style="{ gridTemplateColumns: weekGridCols }"
diff --git a/frontend/components/ui/TimeSelect.vue b/frontend/components/ui/TimeSelect.vue
index ef1db23..f6011c7 100644
--- a/frontend/components/ui/TimeSelect.vue
+++ b/frontend/components/ui/TimeSelect.vue
@@ -23,7 +23,7 @@
       <button
         type="button"
         tabindex="-1"
-        class="inline-flex h-8 w-8 items-center justify-center rounded text-neutral-600 hover:bg-tertiary-500 disabled:cursor-not-allowed disabled:bg-neutral-200 disabled:text-neutral-500"
+        class="hidden lg:inline-flex h-8 w-8 items-center justify-center rounded text-neutral-600 hover:bg-tertiary-500 disabled:cursor-not-allowed disabled:bg-neutral-200 disabled:text-neutral-500"
         :disabled="props.disabled"
         @mousedown.prevent
         @click="toggleOpen"
@@ -149,8 +149,11 @@ const toggleOpen = () => {
   }
 }
 
+const isMobile = () => window.innerWidth < 1024
+
 const openMenu = () => {
   if (props.disabled) return
+  if (isMobile()) return
   if (!isOpen.value) {
     isOpen.value = true
     nextTick(updateMenuPosition)
@@ -165,8 +168,28 @@ const closeMenu = () => {
   isOpen.value = false
 }
 
+const snapToNearest15 = (time: string): string => {
+  const [h, m] = time.split(':').map(Number)
+  const snapped = Math.round(m / 15) * 15
+  if (snapped === 60) {
+    const newH = h + 1
+    if (newH > 23) return '23:45'
+    return `${String(newH).padStart(2, '0')}:00`
+  }
+  return `${String(h).padStart(2, '0')}:${String(snapped).padStart(2, '0')}`
+}
+
 const commitInput = () => {
-  const normalized = normalizeTypedTime(inputValue.value)
+  let value = inputValue.value
+  if (isMobile()) {
+    value = clampTime(value)
+    const normalized = normalizeTypedTime(value)
+    if (normalized !== null && normalized !== '') {
+      value = snapToNearest15(normalized)
+    }
+    inputValue.value = value
+  }
+  const normalized = normalizeTypedTime(value)
   if (normalized === null || (normalized !== '' && !timeSlots.value.includes(normalized))) {
     emit('update:modelValue', '')
     inputValue.value = ''
@@ -184,13 +207,26 @@ const onInput = (event: Event) => {
   if (masked !== inputValue.value) {
     inputValue.value = masked
   }
-  openMenu()
+  if (!isMobile()) {
+    openMenu()
+  }
+}
+
+const clampTime = (value: string): string => {
+  const normalized = normalizeTypedTime(value)
+  if (normalized === null || normalized === '') return value
+  const [h, m] = normalized.split(':').map(Number)
+  if (h > 23 || (h === 23 && m > 45)) return '23:45'
+  return normalized
 }
 
 const onInputBlur = () => {
   // Laisse le temps au click menu de passer avant fermeture.
   setTimeout(() => {
     if (menu.value?.contains(document.activeElement)) return
+    if (isMobile()) {
+      inputValue.value = clampTime(inputValue.value)
+    }
     commitInput()
   }, 50)
 }
diff --git a/frontend/layouts/default.vue b/frontend/layouts/default.vue
index 176d651..cd05d9c 100644
--- a/frontend/layouts/default.vue
+++ b/frontend/layouts/default.vue
@@ -1,11 +1,40 @@
 <template>
     <div class="h-screen overflow-hidden">
         <div class="flex h-full">
-            <aside class="flex h-full w-64 flex-shrink-0 flex-col border-r border-neutral-200 bg-tertiary-500">
-                <div class="h-[75px]">
+            <!-- Mobile overlay -->
+            <Transition
+                enter-active-class="transition-opacity duration-300"
+                enter-from-class="opacity-0"
+                enter-to-class="opacity-100"
+                leave-active-class="transition-opacity duration-300"
+                leave-from-class="opacity-100"
+                leave-to-class="opacity-0"
+            >
+                <div
+                    v-if="sidebarOpen"
+                    class="fixed inset-0 z-40 bg-black/50 lg:hidden"
+                    @click="sidebarOpen = false"
+                />
+            </Transition>
+
+            <!-- Sidebar -->
+            <aside
+                :class="[
+                    'fixed inset-y-0 left-0 z-50 flex w-64 flex-col border-r border-neutral-200 bg-tertiary-500 transition-transform duration-300 lg:static lg:translate-x-0 lg:flex-shrink-0',
+                    sidebarOpen ? 'translate-x-0' : '-translate-x-full'
+                ]"
+            >
+                <div class="flex h-[75px] items-center justify-between">
                     <img src="/malio.png" alt="Logo" class="w-auto"/>
+                    <button
+                        type="button"
+                        class="mr-3 rounded-md p-1 text-primary-500 hover:text-secondary-500 lg:hidden"
+                        @click="sidebarOpen = false"
+                    >
+                        <Icon name="mdi:close" size="24"/>
+                    </button>
                 </div>
-                <nav class="flex-1 px-4 pb-6">
+                <nav class="flex-1 overflow-y-auto px-4 pb-6">
                     <template v-if="isAdmin">
                         <NuxtLink
                             to="/calendar"
@@ -13,6 +42,7 @@
                             :class="route.path.startsWith('/calendar')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:calendar-blank" size="24"/>
                             <p>Calendrier</p>
@@ -26,6 +56,7 @@
                             route.path.startsWith('/hours') ? 'bg-tertiary-500 text-primary-500 font-bold' : '',
                             !isAdmin ? 'border-t border-secondary-500 pt-3' : ''
                         ]"
+                        @click="closeSidebarOnMobile"
                     >
                         <Icon name="mdi:clock-time-four-outline" size="24"/>
                         <p>Heures</p>
@@ -38,6 +69,7 @@
                             route.path.startsWith('/driver-hours') ? 'bg-tertiary-500 text-primary-500 font-bold' : '',
                             !isAdmin && isDriver ? 'border-t border-secondary-500 pt-3' : ''
                         ]"
+                        @click="closeSidebarOnMobile"
                     >
                         <Icon name="mdi:truck-outline" size="24"/>
                         <p>Heures Conducteurs</p>
@@ -49,6 +81,7 @@
                             :class="route.path.startsWith('/employees')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:account-group-outline" size="24"/>
                             <p>Employés</p>
@@ -60,6 +93,7 @@
                             :class="route.path.startsWith('/leave-recap')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:beach" size="24"/>
                             <p>Récap. congés</p>
@@ -70,6 +104,7 @@
                             :class="route.path.startsWith('/sites')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:business" size="24"/>
                             <p>Sites</p>
@@ -80,6 +115,7 @@
                             :class="route.path.startsWith('/absence-types')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:umbrella-beach-outline" size="24"/>
                             <p>Types de statut</p>
@@ -90,6 +126,7 @@
                             :class="route.path.startsWith('/users')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                            @click="closeSidebarOnMobile"
                         >
                             <Icon name="mdi:account-outline" size="24"/>
                             <p>Utilisateurs</p>
@@ -100,6 +137,7 @@
                         to="/leave-recap"
                         class="flex items-center gap-2 py-3 text-md text-black hover:bg-tertiary-500 hover:text-primary-500 pt-3"
                         :class="route.path.startsWith('/leave-recap') ? 'bg-tertiary-500 text-primary-500 font-bold' : ''"
+                        @click="closeSidebarOnMobile"
                     >
                         <Icon name="mdi:beach" size="24"/>
                         <p>Récap. congés</p>
@@ -111,6 +149,7 @@
                         :class="route.path.startsWith('/audit-logs')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                        @click="closeSidebarOnMobile"
                     >
                         <Icon name="mdi:clipboard-text-clock-outline" size="24"/>
                         <p>Journal</p>
@@ -121,6 +160,7 @@
                         :class="route.path.startsWith('/documentation')
                             ? 'bg-tertiary-500 text-primary-500 font-bold'
                             : ''"
+                        @click="closeSidebarOnMobile"
                     >
                         <Icon name="mdi:book-open-page-variant-outline" size="24"/>
                         <p>Documentation</p>
@@ -132,9 +172,9 @@
                 </div>
             </aside>
 
-            <div class="h-full flex-1 overflow-hidden flex flex-col">
-                <AppTopNav :user="auth.user" />
-                <main class="flex-1 overflow-y-auto px-8 py-12">
+            <div class="h-full flex-1 overflow-hidden flex flex-col min-w-0">
+                <AppTopNav :user="auth.user" @toggle-sidebar="sidebarOpen = !sidebarOpen" />
+                <main class="flex-1 overflow-y-auto px-4 py-6 lg:px-8 lg:py-12">
                     <slot/>
                 </main>
             </div>
@@ -150,4 +190,9 @@ const isSuperAdmin = computed(() => auth.user?.roles?.includes('ROLE_SUPER_ADMIN
 const isDriver = computed(() => auth.user?.isDriver ?? false)
 const hasLeaveRecapAccess = computed(() => auth.user?.hasLeaveRecapAccess ?? false)
 const route = useRoute()
+const sidebarOpen = ref(false)
+
+const closeSidebarOnMobile = () => {
+    sidebarOpen.value = false
+}
 </script>
diff --git a/frontend/pages/hours.vue b/frontend/pages/hours.vue
index c883a21..e166800 100644
--- a/frontend/pages/hours.vue
+++ b/frontend/pages/hours.vue
@@ -1,7 +1,7 @@
 <template>
     <div class="h-full overflow-hidden flex flex-col">
         <div class="flex flex-wrap items-center justify-between gap-4">
-            <h1 class="text-4xl font-bold text-primary-500">Heures</h1>
+            <h1 class="text-2xl font-bold text-primary-500 lg:text-4xl">Heures</h1>
         </div>
 
         <HoursToolbar
diff --git a/frontend/pages/leave-recap.vue b/frontend/pages/leave-recap.vue
index 83a3f3d..2ed16a4 100644
--- a/frontend/pages/leave-recap.vue
+++ b/frontend/pages/leave-recap.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="h-full flex flex-col overflow-hidden">
     <div class="flex flex-wrap items-center justify-between gap-4 pb-8">
-      <h1 class="text-4xl font-bold text-primary-500">Récap. congés</h1>
+      <h1 class="text-2xl font-bold text-primary-500 lg:text-4xl">Récap. congés</h1>
       <span
         v-if="cutoffLabel"
         class="inline-flex items-center gap-2 rounded-full bg-tertiary-500 px-4 py-1 text-sm font-semibold text-primary-500"
@@ -25,7 +25,8 @@
       Aucun employé à afficher.
     </div>
 
-    <div v-else class="min-h-0 overflow-auto rounded-md bg-white">
+    <!-- Desktop table -->
+    <div v-else class="min-h-0 overflow-auto rounded-md bg-white hidden lg:block">
       <div
         :class="`grid ${gridColsClass} gap-4 border border-black bg-tertiary-500 px-6 py-3 text-[20px] font-semibold text-black rounded-t-md sticky top-0 z-10`"
       >
@@ -64,6 +65,47 @@
         </div>
       </div>
     </div>
+
+    <!-- Mobile cards -->
+    <div v-if="!isLoading && rows.length > 0" class="min-h-0 overflow-auto space-y-3 lg:hidden">
+      <div
+        v-for="row in rows"
+        :key="'m-' + row.employeeId"
+        class="rounded-md border border-primary-500 bg-white p-4"
+      >
+        <div class="mb-3 flex items-center justify-between gap-2">
+          <p class="text-md font-bold text-primary-500 truncate">
+            {{ row.lastName }} {{ row.firstName }}
+          </p>
+          <span
+            v-if="showSiteColumn && row.siteName"
+            class="inline-block shrink-0 rounded-full px-3 py-1 text-sm"
+            :style="{ backgroundColor: row.siteColor || '#ffd7d7', color: '#1a1a1a' }"
+          >
+            {{ row.siteName }}
+          </span>
+        </div>
+        <p v-if="row.contractName" class="mb-3 text-sm text-neutral-600">{{ row.contractName }}</p>
+        <div class="grid grid-cols-2 gap-x-4 gap-y-2 text-sm">
+          <div class="flex justify-between">
+            <span class="text-neutral-500">CP N-1</span>
+            <span class="font-bold text-primary-500 tabular-nums">{{ formatNumber(row.cpN1Remaining) }}</span>
+          </div>
+          <div class="flex justify-between">
+            <span class="text-neutral-500">Samedis</span>
+            <span class="font-bold text-primary-500 tabular-nums">{{ row.acquiredSaturdays }}</span>
+          </div>
+          <div class="flex justify-between">
+            <span class="text-neutral-500">CP N</span>
+            <span class="font-bold text-primary-500 tabular-nums">{{ formatNumber(row.cpN) }}</span>
+          </div>
+          <div class="flex justify-between">
+            <span class="text-neutral-500">RTT</span>
+            <span class="font-bold text-primary-500 tabular-nums">{{ row.rtt }}</span>
+          </div>
+        </div>
+      </div>
+    </div>
   </div>
 </template>
 
diff --git a/frontend/pages/users.vue b/frontend/pages/users.vue
index 2757209..de052c4 100644
--- a/frontend/pages/users.vue
+++ b/frontend/pages/users.vue
@@ -1,13 +1,13 @@
 <template>
   <div class="h-full flex flex-col overflow-hidden">
     <div class="flex items-center justify-between pb-6">
-      <h1 class="text-4xl font-bold text-primary-500">Utilisateurs</h1>
+      <h1 class="text-2xl font-bold text-primary-500 lg:text-4xl">Utilisateurs</h1>
       <button
         type="button"
-        class="rounded-lg bg-primary-500 px-4 py-2 text-md font-semibold text-white hover:bg-secondary-500"
+        class="rounded-lg bg-primary-500 px-3 py-2 text-sm font-semibold text-white hover:bg-secondary-500 lg:px-4 lg:text-md"
         @click="openCreate"
       >
-        + Ajouter un utilisateur
+        + Ajouter
       </button>
     </div>
 
@@ -18,7 +18,8 @@
       Aucun utilisateur pour le moment.
     </div>
 
-    <div v-else class="min-h-0 overflow-auto rounded-md bg-white">
+    <!-- Desktop table -->
+    <div v-else class="min-h-0 overflow-auto rounded-md bg-white hidden lg:block">
       <div class="grid grid-cols-5 gap-4 border border-black bg-tertiary-500 px-6 py-3 text-[20px] font-semibold text-black rounded-t-md sticky top-0 z-10">
         <span class="text-left">Utilisateur</span>
         <span class="text-left">Employé</span>
@@ -56,6 +57,42 @@
       </div>
     </div>
 
+    <!-- Mobile cards -->
+    <div v-if="isLoading" class="px-6 py-4 text-md text-neutral-500 lg:hidden">
+      Chargement...
+    </div>
+    <div v-else-if="users.length > 0" class="min-h-0 overflow-auto space-y-3 lg:hidden">
+      <div
+        v-for="user in users"
+        :key="'m-' + user.id"
+        class="rounded-md border border-primary-500 bg-white p-4 cursor-pointer active:bg-tertiary-500"
+        @click="openEdit(user)"
+      >
+        <div class="flex items-center justify-between gap-2 mb-2">
+          <p class="text-md font-bold text-primary-500 truncate">{{ user.username }}</p>
+          <span
+            v-if="user.isLocked"
+            class="shrink-0 inline-block rounded-full bg-red-100 px-3 py-1 text-xs font-semibold text-red-700"
+          >Verrouillé</span>
+          <span
+            v-else
+            class="shrink-0 inline-block rounded-full bg-green-100 px-3 py-1 text-xs font-semibold text-green-700"
+          >Actif</span>
+        </div>
+        <div class="space-y-1 text-sm">
+          <p v-if="user.employee" class="text-neutral-600">
+            {{ user.employee.firstName }} {{ user.employee.lastName }}
+          </p>
+          <p class="text-neutral-500">
+            Accès : <span class="font-semibold text-primary-500">{{ getAccessLabel(user) }}</span>
+          </p>
+          <p v-if="getSiteLabels(user) !== '-'" class="text-neutral-500 truncate">
+            Sites : <span class="font-semibold text-primary-500">{{ getSiteLabels(user) }}</span>
+          </p>
+        </div>
+      </div>
+    </div>
+
     <AppDrawer
       v-model="isDrawerOpen"
       :title="editingUser ? 'Modifier un utilisateur' : 'Ajouter un utilisateur'"