@charset "UTF-8";

body {
  font-family: "メイリオ", "Hiragino Kaku Gothic Pro", Meiryo,
    "ヒラギノ角ゴ Pro W3", "MS PGothic", "MS UI Gothic", Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: aquamarine;
  background-image: url("../images/top.webp");
  padding-top: 21.8%;
  background-repeat: no-repeat;
  background-size: cover;
}

header h1 {
  text-align: center;
  margin-top: -10%;
  font-size: 38px;
  color: #fff;
  text-shadow: 2px 2px 2px darkslateblue, -2px 2px 2px darkslateblue,
    2px -2px 2px darkslateblue, -2px -2px 2px darkslateblue;
}

nav {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

nav p {
  text-align: right;
  margin: 0;
}

main {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  flex: 1;
}

footer {
  background-color: gray;
  text-align: center;
  color: white;
}
@media screen and (max-width: 700px) {
  main {
    max-width: 100%;
  }
  header h1 {
    font-size: 28px;
  }
}