Render Content Outside Component with Teleport

// src/components/Modal.vue
<template>
  <Teleport to="body">
    <div v-if="isOpen" class="modal-overlay" @click.self="$emit('close')">
      <div class="modal-content">
        <slot></slot>
        <button @click="$emit('close')" class="modal-close-button">X</button>
      </div>
    </div>
  </Teleport>
</template>

<script setup>
defineProps({
  isOpen: {
    type: Boolean,
    required: true,
  },
});

defineEmits(['close']);
</script>

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

.modal-content {
  background: white;
  padding: 20px;
  border-radius: 8px;
  min-width: 300px;
  position: relative;
}

.modal-close-button {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 1.2em;
  cursor: pointer;
}
</style>

// src/App.vue (Usage)
<template>
  <div>
    <h1>Teleport Example</h1>
    <button @click="isModalOpen = true">Open Modal</button>
    <Modal :is-open="isModalOpen" @close="isModalOpen = false">
      <h2>Modal Title</h2>
      <p>This content is rendered in the modal.</p>
      <p>Despite being defined inside App.vue, it appears in the document body.</p>
    </Modal>
  </div>
</template>

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

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