:root {
  --fore: #202020;
  --back: #ffffff;
  --marshmallow-fore: #202020;
  --marshmallow-back: #ffffff;
  --marshmallow-theme: #f39498;
  --marshmallow-label: #b0b0b0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fore: #d0d0d0;
    --back: #1b1b1e;
  }
}

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

body {
  color: var(--fore);
  background-color: var(--back);
  font-family: "Noto Sans CJK SC", "Microsoft YaHei UI", "Noto Sans", "Segoe UI", sans-serif;
}

a:link {
  text-decoration: none;
}
a:any-link {
  color: inherit;
}
a:hover {
  text-decoration: underline;
}

main.frontpage {
  width: 100vw;
  max-width: 29.7cm;
  min-height: 75vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.marshmallow {
  text-align: center;
  padding: 1rem 1rem 0 1rem;
  color: var(--marshmallow-fore);
  background-color: var(--marshmallow-theme);
}
.marshmallow__content {
  background-color: var(--marshmallow-back);
  border-radius: 1rem;
  padding: 4rem 2rem 0 2rem;
  min-height: 6rem;
}
.marshmallow__label {
  color: var(--marshmallow-label);
  padding: 2rem 0 0.5rem 0;
}
.marshmallow__icon {
  text-align: center;
  line-height: 1;
  margin: 2px;
}
@media (max-width: 800px) {
  .marshmallow__content {
    padding: 6rem 1rem 0 1rem;
  }
  .marshmallow__label {
    padding: 5rem 0 0.5rem 0;
  }
}

.koto__hitokoto {
  font-size: 1.5rem;
  line-height: 2;
}
.koto__author {
  font-size: 1.25rem;
  margin: 2rem 0 0;
  text-align: end;
}
.koto__author::before {
  content: "——";
}