/* --- Reset --- */
*,
*::before,
*::after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
li,
dl,
dt,
dd {
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}
a {
  text-decoration: none;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
a:hover {
  @media screen and (min-width: 768px) {
    opacity: 0.7;
  }
}
li {
  list-style: none;
}

/* --- 変数定義 --- */
:root {
  --base-width: 390;
  --px-unit: calc(100vw / var(--base-width));

  --pc-base-width: 1440;
  --pc-px-unit: calc(100vw / var(--pc-base-width));

  --font-color-main: #272727;
  --font-color-accent: #d13800;

  --font-sans: "Noto Sans JP", sans-serif;
  --font-serif-en: "Playfair Display", serif;
  --font-serif-ja: "Shippori Mincho", serif;
}

body {
  font-size: calc(16 * var(--px-unit));
  line-height: 1.4;
  color: var(--color-main);
  font-family: var(--font-sans);

  @media screen and (min-width: 768px) {
    font-size: 16px;
  }
}