/*
  Reset CSS
  基本的なリセットスタイルを定義
*/

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 62.5%; /* 10px = 1rem */
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.7;
  color: #0a154f;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  line-height: 1.3;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s, opacity 0.3s;
}

a:hover {
  opacity: 0.8;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

ul,
ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* 見えないけどスクリーンリーダー用に存在するテキスト */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
}