Reusable Modal Component with Teleport and Slots

// ModalDialog.vue
<template>
  <Teleport to="body">
    <div v-if="isOpen" class="modal-backdrop" @click.self="closeModal">
      <div class="modal-content">
        <header class="modal-header">
          <slot name="header"><h2>Default Header</h2></slot>
          <button class="close-button" @click="closeModal">X</button>
        </header>
        <main class="modal-body">
          <slot>Default Body Content</slot>
        </main>
        <footer class="modal-footer">
          <slot name="footer"></slot>
        </footer>
      </div>
    </div>
  </Teleport>
</template>

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

const props = defineProps({
  isOpen: Boolean,
});

const emit = defineEmits(['close']);

const closeModal = () => {
  emit('close');
};
</script>

<style scoped>
.modal-backdrop {
  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;
  max-width: 90%;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.modal-header h2 {
  margin: 0;
}

.close-button {
  background: none;
  border: none;
  font-size: 1.2em;
  cursor: pointer;
}

.modal-footer {
  margin-top: 15px;
  text-align: right;
}
</style>

// How to use in ParentComponent.vue:
// <template>
//   <div>
//     <button @click="showModal = true">Open Modal</button>
//     <ModalDialog :is-open="showModal" @close="showModal = false">
//       <template #header><h3>Custom Modal Title</h3></template>
//       <p>This is dynamic content passed through the default slot.</p>
//       <template #footer>
//         <button @click="showModal = false">Confirm</button>
//       </template>
//     </ModalDialog>
//   </div>
// </template>
//
// <script setup>
// import { ref } from 'vue';
// import ModalDialog from './ModalDialog.vue';
//
// const showModal = ref(false);
// </script>