diff --git a/src/components/admin/admin-users-manager.tsx b/src/components/admin/admin-users-manager.tsx
index 35f031f..53792f4 100644
--- a/src/components/admin/admin-users-manager.tsx
+++ b/src/components/admin/admin-users-manager.tsx
@@ -1320,7 +1320,7 @@ async function handleDeleteUser() {
               <div className="flex flex-col items-center justify-between gap-3 border-t border-slate-200 pt-2 text-xs text-neutral-500 md:flex-row md:text-sm">
                 <div>{teamTotal === 0 ? "Nenhum registro" : `Mostrando ${teamStart}-${teamEnd} de ${teamTotal}`}</div>
                 <div className="flex items-center gap-3">
-                  <div className="flex items-center gap-2 text-xs uppercase tracking-wide text-neutral-500 md:text-sm">
+                  <div className="flex items-center gap-2 text-xs tracking-wide text-neutral-500 md:text-sm">
                     <span>Itens por página</span>
                     <Select
                       value={`${teamPageSize}`}
@@ -1629,7 +1629,7 @@ async function handleDeleteUser() {
               <div className="flex flex-col items-center justify-between gap-3 border-t border-slate-200 pt-2 text-xs text-neutral-500 md:flex-row md:text-sm">
                 <div>{usersTotal === 0 ? "Nenhum registro" : `Mostrando ${usersStart}-${usersEnd} de ${usersTotal}`}</div>
                 <div className="flex items-center gap-3">
-                  <div className="flex items-center gap-2 text-xs uppercase tracking-wide text-neutral-500 md:text-sm">
+                  <div className="flex items-center gap-2 text-xs tracking-wide text-neutral-500 md:text-sm">
                     <span>Itens por página</span>
                     <Select
                       value={`${usersPageSize}`}
@@ -1887,7 +1887,7 @@ async function handleDeleteUser() {
                     <IconTrash className="size-4" /> Revogar selecionados
                   </Button>
                   <div className="flex items-center gap-3">
-                    <div className="flex items-center gap-2 text-xs uppercase tracking-wide text-neutral-500 md:text-sm">
+                    <div className="flex items-center gap-2 text-xs tracking-wide text-neutral-500 md:text-sm">
                       <span>Itens por página</span>
                       <Select
                         value={`${invitesPageSize}`}
diff --git a/src/components/admin/companies/admin-companies-manager.tsx b/src/components/admin/companies/admin-companies-manager.tsx
index 7fd7d1e..3d82ff7 100644
--- a/src/components/admin/companies/admin-companies-manager.tsx
+++ b/src/components/admin/companies/admin-companies-manager.tsx
@@ -895,7 +895,7 @@ function TableView({ companies, machineCountsBySlug, onEdit, onDelete }: TableVi
           {total === 0 ? "Nenhum registro" : `Mostrando ${start}-${end} de ${total}`}
         </div>
         <div className="flex items-center gap-3">
-          <div className="flex items-center gap-2 text-xs uppercase tracking-wide text-neutral-500 md:text-sm">
+          <div className="flex items-center gap-2 text-xs tracking-wide text-neutral-500 md:text-sm">
             <span>Itens por página</span>
             <Select value={`${pageSize}`} onValueChange={(v) => { setPageSize(Number(v)); setPageIndex(0) }}>
               <SelectTrigger className="h-8 w-20">
diff --git a/src/components/admin/users/admin-users-workspace.tsx b/src/components/admin/users/admin-users-workspace.tsx
index 5cf5fc9..4cb6906 100644
--- a/src/components/admin/users/admin-users-workspace.tsx
+++ b/src/components/admin/users/admin-users-workspace.tsx
@@ -1,6 +1,6 @@
 "use client"
 
-import { useCallback, useMemo, useState, useTransition } from "react"
+import { useCallback, useEffect, useMemo, useState, useTransition } from "react"
 import { format } from "date-fns"
 import { ptBR } from "date-fns/locale"
 import { Controller, FormProvider, useFieldArray, useForm } from "react-hook-form"
@@ -32,6 +32,7 @@ import {
 } from "@/lib/schemas/company"
 import type { NormalizedCompany } from "@/server/company-service"
 import { cn } from "@/lib/utils"
+import type { RoleOption } from "@/lib/authz"
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
 import { Button } from "@/components/ui/button"
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card"
@@ -91,6 +92,18 @@ const ROLE_LABEL: Record<AdminAccount["role"], string> = {
   COLLABORATOR: "Colaborador",
 }
 
+const ROLE_TO_OPTION: Record<AdminAccount["role"], RoleOption> = {
+  MANAGER: "manager",
+  COLLABORATOR: "collaborator",
+}
+
+const ROLE_OPTIONS_DISPLAY: ReadonlyArray<{ value: AdminAccount["role"]; label: string }> = [
+  { value: "MANAGER", label: "Gestor" },
+  { value: "COLLABORATOR", label: "Colaborador" },
+]
+
+const NO_COMPANY_SELECT_VALUE = "__none__"
+
 const NO_CONTACT_VALUE = "__none__"
 
 function createId(prefix: string) {
@@ -137,6 +150,17 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
   const [rowSelection, setRowSelection] = useState<Record<string, boolean>>({})
   const [isPending, startTransition] = useTransition()
   const [deleteDialogIds, setDeleteDialogIds] = useState<string[]>([])
+  const [editAccountId, setEditAccountId] = useState<string | null>(null)
+  const [editAuthUserId, setEditAuthUserId] = useState<string | null>(null)
+  const [editForm, setEditForm] = useState({
+    name: "",
+    email: "",
+    role: "COLLABORATOR" as AdminAccount["role"],
+    companyId: "",
+  })
+  const [isSavingAccount, setIsSavingAccount] = useState(false)
+  const [isResettingPassword, setIsResettingPassword] = useState(false)
+  const [passwordPreview, setPasswordPreview] = useState<string | null>(null)
 
   const filteredAccounts = useMemo(() => {
     const term = search.trim().toLowerCase()
@@ -157,6 +181,11 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
     [rowSelection]
   )
 
+  const editAccount = useMemo(
+    () => (editAccountId ? accounts.find((account) => account.id === editAccountId) ?? null : null),
+    [accounts, editAccountId]
+  )
+
   const companies = useMemo(() => {
     const map = new Map<string, string>()
     accounts.forEach((account) => {
@@ -173,6 +202,131 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
 
   const closeDeleteDialog = useCallback(() => setDeleteDialogIds([]), [])
 
+  const closeEditor = useCallback(() => {
+    setEditAccountId(null)
+    setEditAuthUserId(null)
+    setPasswordPreview(null)
+  }, [])
+
+  useEffect(() => {
+    if (editAccount) {
+      setEditForm({
+        name: editAccount.name,
+        email: editAccount.email,
+        role: editAccount.role,
+        companyId: editAccount.companyId ?? "",
+      })
+    }
+  }, [editAccount])
+
+  const refreshAccounts = useCallback(async () => {
+    try {
+      const response = await fetch("/api/admin/users", { credentials: "include", cache: "no-store" })
+      if (!response.ok) {
+        const payload = await response.json().catch(() => null)
+        throw new Error(payload?.error ?? "Não foi possível atualizar a lista de usuários.")
+      }
+      const data = (await response.json()) as { items: Array<AdminAccount & { name: string | null }> }
+      setAccounts(
+        data.items.map((item) => ({
+          ...item,
+          name: item.name ?? item.email,
+        })),
+      )
+    } catch (error) {
+      const message = error instanceof Error ? error.message : "Falha ao atualizar usuários."
+      toast.error(message)
+    }
+  }, [])
+
+  const handleOpenEditor = useCallback((account: AdminAccount) => {
+    if (!account.authUserId) {
+      toast.error("Não foi possível localizar o perfil de acesso para este usuário.")
+      return
+    }
+    setEditAccountId(account.id)
+    setEditAuthUserId(account.authUserId)
+    setPasswordPreview(null)
+  }, [])
+
+  const handleSaveAccount = useCallback(
+    async (event: React.FormEvent<HTMLFormElement>) => {
+      event.preventDefault()
+      if (!editAccount || !editAuthUserId) {
+        toast.error("Nenhum usuário selecionado.")
+        return
+      }
+
+      const payload = {
+        name: editForm.name.trim(),
+        email: editForm.email.trim().toLowerCase(),
+        role: ROLE_TO_OPTION[editForm.role] ?? "collaborator",
+        tenantId: editAccount.tenantId,
+        companyId: editForm.companyId ? editForm.companyId : null,
+      }
+
+      if (!payload.name) {
+        toast.error("Informe o nome do usuário.")
+        return
+      }
+      if (!payload.email || !payload.email.includes("@")) {
+        toast.error("Informe um e-mail válido.")
+        return
+      }
+
+      setIsSavingAccount(true)
+      try {
+        const response = await fetch(`/api/admin/users/${editAuthUserId}`, {
+          method: "PATCH",
+          headers: { "Content-Type": "application/json" },
+          credentials: "include",
+          body: JSON.stringify(payload),
+        })
+        if (!response.ok) {
+          const data = await response.json().catch(() => null)
+          throw new Error(data?.error ?? "Não foi possível salvar as alterações.")
+        }
+        await refreshAccounts()
+        toast.success("Usuário atualizado com sucesso.")
+        closeEditor()
+      } catch (error) {
+        const message = error instanceof Error ? error.message : "Erro ao salvar usuário."
+        toast.error(message)
+      } finally {
+        setIsSavingAccount(false)
+      }
+    },
+    [editAccount, editAuthUserId, editForm, refreshAccounts, closeEditor]
+  )
+
+  const handleResetPassword = useCallback(async () => {
+    if (!editAuthUserId) {
+      toast.error("Usuário inválido para gerar senha.")
+      return
+    }
+    setIsResettingPassword(true)
+    toast.loading("Gerando nova senha...", { id: "admin-users-reset-password" })
+    try {
+      const response = await fetch(`/api/admin/users/${editAuthUserId}/reset-password`, {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        credentials: "include",
+      })
+      if (!response.ok) {
+        const data = await response.json().catch(() => null)
+        throw new Error(data?.error ?? "Falha ao gerar senha temporária.")
+      }
+      const data = (await response.json()) as { temporaryPassword: string }
+      setPasswordPreview(data.temporaryPassword)
+      toast.success("Senha temporária criada com sucesso.", { id: "admin-users-reset-password" })
+    } catch (error) {
+      const message = error instanceof Error ? error.message : "Erro ao gerar senha."
+      toast.error(message, { id: "admin-users-reset-password" })
+    } finally {
+      setIsResettingPassword(false)
+    }
+  }, [editAuthUserId])
+
   const handleDelete = useCallback(
     (ids: string[]) => {
       if (ids.length === 0) return
@@ -274,6 +428,7 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
                   <TableHead>Empresa</TableHead>
                   <TableHead>Papel</TableHead>
                   <TableHead>Último acesso</TableHead>
+                  <TableHead className="text-right">Ações</TableHead>
                   <TableHead className="text-right">Selecionar</TableHead>
                 </TableRow>
               </TableHeader>
@@ -312,6 +467,29 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
                           <Badge variant="secondary">{ROLE_LABEL[account.role]}</Badge>
                         </TableCell>
                         <TableCell className="text-xs text-muted-foreground">{formatDate(account.lastSeenAt)}</TableCell>
+                        <TableCell className="text-right">
+                          <div className="flex justify-end gap-2">
+                            <Button
+                              variant="outline"
+                              size="sm"
+                              disabled={!account.authUserId || isPending}
+                              onClick={() => handleOpenEditor(account)}
+                            >
+                              <IconPencil className="mr-1 size-4" />
+                              <span className="hidden sm:inline">Editar</span>
+                            </Button>
+                            <Button
+                              variant="ghost"
+                              size="sm"
+                              className="text-rose-600 hover:bg-rose-50 hover:text-rose-700"
+                              disabled={isPending}
+                              onClick={() => openDeleteDialog([account.id])}
+                            >
+                              <IconTrash className="mr-1 size-4" />
+                              <span className="hidden sm:inline">Remover</span>
+                            </Button>
+                          </div>
+                        </TableCell>
                         <TableCell className="text-right">
                           <Checkbox
                             checked={rowSelection[account.id] ?? false}
@@ -348,6 +526,155 @@ function AccountsTable({ initialAccounts }: { initialAccounts: AdminAccount[] })
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      <Sheet open={Boolean(editAccountId)} onOpenChange={(open) => (!open ? closeEditor() : null)}>
+        <SheetContent side="right" className="space-y-6 overflow-y-auto px-6 pb-10 sm:max-w-lg">
+          <SheetHeader className="px-0 pt-6">
+            <SheetTitle>Editar usuário</SheetTitle>
+            <p className="text-sm text-muted-foreground">
+              Atualize os dados cadastrais, papel e vínculo do colaborador.
+            </p>
+          </SheetHeader>
+
+          {editAccount ? (
+            <form className="space-y-6" onSubmit={handleSaveAccount}>
+              <div className="rounded-lg border border-border/60 bg-muted/40 p-4">
+                <p className="text-sm font-semibold text-foreground">{editAccount.name}</p>
+                <p className="text-xs text-muted-foreground">{editAccount.email}</p>
+                <div className="mt-3 text-xs text-muted-foreground">
+                  Essa seleção substitui o vínculo atual no portal do cliente.
+                </div>
+              </div>
+
+              <div className="grid gap-4">
+                <div className="grid gap-2">
+                  <Label htmlFor="edit-name">Nome</Label>
+                  <Input
+                    id="edit-name"
+                    value={editForm.name}
+                    onChange={(event) => setEditForm((prev) => ({ ...prev, name: event.target.value }))}
+                    placeholder="Nome completo"
+                    disabled={isSavingAccount}
+                    required
+                  />
+                </div>
+                <div className="grid gap-2">
+                  <Label htmlFor="edit-email">E-mail</Label>
+                  <Input
+                    id="edit-email"
+                    type="email"
+                    value={editForm.email}
+                    onChange={(event) => setEditForm((prev) => ({ ...prev, email: event.target.value }))}
+                    placeholder="usuario@empresa.com"
+                    disabled={isSavingAccount}
+                    required
+                  />
+                </div>
+                <div className="grid gap-2">
+                  <Label htmlFor="edit-role">Papel</Label>
+                  <Select
+                    value={editForm.role}
+                    onValueChange={(value) =>
+                      setEditForm((prev) => ({ ...prev, role: value as AdminAccount["role"] }))
+                    }
+                    disabled={isSavingAccount}
+                  >
+                    <SelectTrigger id="edit-role">
+                      <SelectValue placeholder="Selecione" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {ROLE_OPTIONS_DISPLAY.map((option) => (
+                        <SelectItem key={option.value} value={option.value}>
+                          {option.label}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+                <div className="grid gap-2">
+                  <Label htmlFor="edit-company">Empresa vinculada</Label>
+                  <Select
+                    value={editForm.companyId || NO_COMPANY_SELECT_VALUE}
+                    onValueChange={(value) =>
+                      setEditForm((prev) => ({
+                        ...prev,
+                        companyId: value === NO_COMPANY_SELECT_VALUE ? "" : value,
+                      }))
+                    }
+                    disabled={isSavingAccount}
+                  >
+                    <SelectTrigger id="edit-company">
+                      <SelectValue placeholder="Sem empresa vinculada" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value={NO_COMPANY_SELECT_VALUE}>Sem empresa vinculada</SelectItem>
+                      {companies.map((company) => (
+                        <SelectItem key={company.id} value={company.id}>
+                          {company.name}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+              </div>
+
+              <div className="rounded-lg border border-border/60 bg-muted/20 p-4">
+                <div className="flex items-start justify-between gap-3">
+                  <div>
+                    <p className="text-sm font-semibold text-foreground">Gerar nova senha</p>
+                    <p className="text-xs text-muted-foreground">
+                      Uma senha temporária será exibida abaixo. Compartilhe com o usuário e peça para trocá-la no primeiro acesso.
+                    </p>
+                  </div>
+                  <Button
+                    type="button"
+                    size="sm"
+                    variant="outline"
+                    onClick={handleResetPassword}
+                    disabled={isResettingPassword}
+                  >
+                    {isResettingPassword ? "Gerando..." : "Gerar senha"}
+                  </Button>
+                </div>
+                {passwordPreview ? (
+                  <div className="mt-4 flex flex-wrap items-center gap-3 rounded-md border border-dashed border-border/60 bg-background p-3">
+                    <code className="text-sm font-semibold text-foreground">{passwordPreview}</code>
+                    <Button
+                      type="button"
+                      variant="ghost"
+                      size="sm"
+                      onClick={() => {
+                        if (!passwordPreview) return
+                        const promise = navigator.clipboard?.writeText(passwordPreview)
+                        if (!promise) {
+                          toast.error("Não foi possível copiar a senha.")
+                          return
+                        }
+                        promise
+                          .then(() => toast.success("Senha copiada para a área de transferência."))
+                          .catch(() => toast.error("Não foi possível copiar a senha."))
+                      }}
+                    >
+                      Copiar
+                    </Button>
+                  </div>
+                ) : null}
+              </div>
+
+              <SheetFooter className="flex flex-col gap-2 sm:flex-row sm:justify-end">
+                <Button type="button" variant="outline" onClick={closeEditor} disabled={isSavingAccount}>
+                  Cancelar
+                </Button>
+                <Button type="submit" disabled={isSavingAccount}>
+                  {isSavingAccount ? "Salvando..." : "Salvar alterações"}
+                </Button>
+              </SheetFooter>
+            </form>
+          ) : (
+            <p className="text-sm text-muted-foreground">Selecione um usuário para visualizar os detalhes.</p>
+          )}
+        </SheetContent>
+      </Sheet>
     </Card>
   )
 }
diff --git a/src/components/ui/table-pagination.tsx b/src/components/ui/table-pagination.tsx
index 6e0010f..b03bf21 100644
--- a/src/components/ui/table-pagination.tsx
+++ b/src/components/ui/table-pagination.tsx
@@ -102,7 +102,7 @@ export function TablePagination<TData>({
 
       <div className="flex flex-col-reverse items-center gap-3 md:flex-row md:gap-4 md:justify-end md:flex-1">
         {pageSizeOptions.length > 0 ? (
-          <div className="flex items-center gap-2 text-xs uppercase tracking-wide text-neutral-500 md:text-sm">
+          <div className="flex items-center gap-2 text-xs tracking-wide text-neutral-500 md:text-sm">
             <span>{rowsPerPageLabel}</span>
             <Select
               value={`${pageSize}`}