<template>
  <div id="main-app">
    <header class="app-header">
      <div class="logo" @click="$router.push('/')">
        <h1>MicroApp 主应用</h1>
      </div>
      <nav class="nav-links">
        <router-link to="/home">首页</router-link>
        <router-link to="/child-app">Vue2 子应用</router-link>
        <router-link to="/vue3-app">Vue3 子应用</router-link>
      </nav>
    </header>
    <main class="app-main">
      <router-view />
    </main>
  </div>
</template>

<script setup lang="ts">
// 根组件 — 提供全局布局（头部导航 + 内容区）
</script>

<style>
/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
  color: #333;
  background: #f5f6f7;
}

#app {
  height: 100%;
}

#main-app {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* 头部导航 */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.logo {
  cursor: pointer;
}

.logo h1 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  padding: 6px 16px;
  border-radius: 6px;
  font-size: 14px;
  transition: all 0.2s ease;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.nav-links a.router-link-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
  font-weight: 500;
}

/* 主内容区 */
.app-main {
  flex: 1;
  overflow: auto;
}
</style>
