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<script setup>
import { ref, onMounted, onUnmounted } from 'vue';

const isFixed = ref(false);
const isScrolledOut = ref(false);
const scrollThreshold = 300;

const handleScroll = () => {
  const scrollY = window.scrollY;
  isFixed.value = scrollY > scrollThreshold;
  isScrolledOut.value = scrollY > scrollThreshold; // 画像をスライドアウトさせる
};

onMounted(() => {
  window.addEventListener('scroll', handleScroll);
});

onUnmounted(() => {
  window.removeEventListener('scroll', handleScroll);
});
</script>

<template>
  <div class="wrap">
      <div :class="['contenta', { 'fixed': isFixed, 'visible': isFixed }]">
        <img src="/test/image1.svg" class="image1" :class="{ 'slide-out': isScrolledOut }" />
        <div class="overlay">テキスト</div>
        <img src="/test/image2.svg" class="image2" :class="{ 'slide-out': isScrolledOut }" />
    </div>
  </div>
</template>

<style scoped>
.wrap { 
  padding-top:300px;
  width:100%;
  height: 1200px;
  display: flex;
  flex-direction: column;
  margin: 0 auto;
}

.contenta {
    width: 100%;
  position: relative;
  transition: transform 0.5s ease-in-out, opacity 0.5s ease-in-out;

}

.fixed {
  position: fixed;
  top: 0;

  transform: translateY(-100%);
  width: 100%;
  z-index: 1000;
  height: 100px;
  background: rgba(160, 160, 160, 0.2);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  opacity: 0;
}

.visible {
transform: translateY(0);
  opacity: 1;

}

/* 画像をスライドアウトするアニメーション */
.slide-out {

  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
  transition-delay: 0s; /* すべて同時に動かす */


}

.image1,
.image2,
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.image1 {
  z-index: 1;
  width: 64px;
  height: 64px;
  left: 42px;

}

.overlay {
  z-index: 2;
  background: aquamarine;
  display: flex;
  align-items: center;
  justify-content: center;
  top: 20px;
  width: 155px;
  height: 50px;
}

.image2 {
  z-index: 3;
  width: 16px;
  height: 16px;
  top: 12px;
  left: 86px;

}
</style>