Managing Modals and Overlays with Vue 3's `<Teleport>`

// ModalComponent.vue
<template>
  <Teleport to="body">
    <div v-if="isOpen" class="modal-backdrop" @click.self="closeModal">
      <div class="modal-content">
        <h3>{{ title }}</h3>
        <slot>Default Modal Content</slot>
        <button @click="closeModal">Close</button>
      </div>
    </div>
  </Teleport>
</template>

<script setup>
import { defineProps, defineEmits } from 'vue';

const props = defineProps({
  isOpen: {
    type: Boolean,
    default: false
  },
  title: {
    type: String,
    default: 'Modal Title'
  }
});

const emit = defineEmits(['update:isOpen']);

const closeModal = () => {
  emit('update:isOpen', false);
};
</script>

<style scoped>
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 500px;
  width: 90%;
  z-index: 1001;
}
</style>

// App.vue (or any parent component)
<template>
  <div>
    <button @click="isModalOpen = true">Open Modal</button>

    <ModalComponent v-model:isOpen="isModalOpen" title="My Awesome Modal">
      <p>This content is inside the modal.</p>
      <p>It's rendered in the body thanks to Teleport!</p>
    </ModalComponent>
  </div>
</template>

<script setup>
import { ref } from 'vue';
import ModalComponent from './ModalComponent.vue';

const isModalOpen = ref(false);
</script>