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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--color-text);
  background: #fff;
  font-family: var(--font-ja);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input,
textarea {
  font-family: inherit;
}

a {
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.font-en {
  font-family: var(--font-en);
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 300;
  background: #111;
  color: #fff;
  padding: 8px 14px;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

:focus-visible {
  outline: 2px solid #111;
  outline-offset: 3px;
}

.section-inner {
  width: min(var(--content), calc(100% - 40px));
  margin-inline: auto;
}

.section-inner--wide {
  width: min(var(--wide), calc(100% - 40px));
}

.section-inner--narrow {
  width: min(680px, calc(100% - 40px));
}

.column-title {
  text-align: center;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: #2a2a2a;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  min-height: 36px;
  padding: 8px 22px;
  border: 1px solid #111;
  background: transparent;
  color: #111;
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.12em;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  background: #111;
  color: #fff;
}

.btn--on-dark {
  border-color: #fff;
  color: #fff;
}

.btn--on-dark:hover {
  background: #fff;
  color: #111;
}

.btn--solid {
  background: #111;
  color: #fff;
}

.btn--solid:hover {
  background: #333;
  color: #fff;
}

.icon {
  display: block;
  width: 22px;
  height: 22px;
}

@media (max-width: 640px) {
  .section-inner,
  .section-inner--wide,
  .section-inner--narrow {
    width: min(var(--wide), calc(100% - 32px));
  }
}