:root {
  --paper: #f4efe6;
  --ink: #2a261f;
  --teal: #0f5c57;
  --line: #e3d8c8;
  --link: #0a3fbf;
  --link-hover: #082f8f;
}

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

html {
  background: var(--paper);
}

body {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 2.25rem 1.25rem 3.5rem;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Hiragino Kaku Gothic Pro", "YuGothic", "Yu Gothic", sans-serif;
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.9;
  overflow-wrap: break-word;
}

.site-label {
  margin: 0 0 0.85rem;
  color: var(--teal);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Hiragino Kaku Gothic Pro", "YuGothic", "Yu Gothic", sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.4;
}

.site-header {
  margin-bottom: 2.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2 {
  color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Hiragino Mincho Pro", "YuMincho", "Yu Mincho", serif;
  font-weight: 600;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0 0 1.25rem;
  font-size: 1.9rem;
  line-height: 1.45;
}

h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.22rem;
  line-height: 1.5;
}

p {
  margin: 0 0 1.15rem;
}

section p:last-child {
  margin-bottom: 0;
}

a:link,
a:visited,
a:hover,
a:active {
  color: var(--link);
  font-weight: 700;
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

a:hover,
a:active {
  color: var(--link-hover);
}

a:focus {
  outline: 3px solid var(--link);
  outline-offset: 3px;
}

@supports selector(:focus-visible) {
  a:focus:not(:focus-visible) {
    outline: none;
  }

  a:focus-visible {
    outline: 3px solid var(--link);
    outline-offset: 3px;
  }
}

@media (max-width: 760px) {
  body {
    padding: 1.5rem 1rem 2.75rem;
    font-size: 1rem;
    line-height: 1.85;
  }

  h1 {
    font-size: 1.55rem;
  }

  h2 {
    font-size: 1.12rem;
  }

  nav a {
    display: inline-block;
    padding: 0.2em 0;
  }
}