:root {
  --background: #f6f4f1;
  --surface: #fffdfa;
  --text: #302d2a;
  --subtext: #77716b;
  --line: #d8d2cb;
  --accent: #645951;
  --content-width: 680px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    "Noto Serif JP",
    serif;
  line-height: 2;
  overflow-wrap: anywhere;
}

a {
  color: inherit;
}

.site-wrapper {
  width: min(calc(100% - 32px), var(--content-width));
  margin: 0 auto;
  padding: 64px 0 32px;
}

.site-header {
  margin-bottom: 48px;
  text-align: center;
}

.site-label {
  margin: 0 0 8px;
  color: var(--subtext);
  font-family: sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 6vw, 2.5rem);
  font-weight: 400;
  letter-spacing: 0.08em;
}

.site-description {
  margin: 16px 0 0;
  color: var(--subtext);
  font-size: 0.9rem;
}

.notice {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.notice h2 {
  margin: 0 0 16px;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.12em;
}

.notice p {
  margin: 0 0 16px;
}

.notice p:last-child {
  margin-bottom: 0;
}

.main-menu {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.main-menu a {
  display: block;
  padding: 14px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-align: center;
  text-decoration: none;
}

.main-menu a:hover,
.main-menu a:focus-visible {
  border-color: var(--accent);
}

.page-header {
  margin-bottom: 40px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 400;
}

.breadcrumb {
  margin-bottom: 24px;
  color: var(--subtext);
  font-family: sans-serif;
  font-size: 0.8rem;
}

.breadcrumb a {
  text-decoration: none;
}

.novel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.novel-list li {
  border-bottom: 1px solid var(--line);
}

.novel-list a {
  display: block;
  padding: 20px 4px;
  text-decoration: none;
}

.novel-title {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
}

.novel-meta {
  display: block;
  color: var(--subtext);
  font-family: sans-serif;
  font-size: 0.75rem;
}

.novel {
  font-size: 1rem;
}

.novel-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.novel-header h1 {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 400;
}

.novel-info {
  margin: 0;
  color: var(--subtext);
  font-family: sans-serif;
  font-size: 0.78rem;
}

.novel-body {
  background: var(--surface);
  padding: clamp(24px, 6vw, 48px);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.novel-body p {
  margin: 0 0 1.8em;
}

.novel-body p:last-child {
  margin-bottom: 0;
}

.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  font-family: sans-serif;
  font-size: 0.85rem;
}

.site-footer {
  margin-top: 56px;
  color: var(--subtext);
  font-family: sans-serif;
  font-size: 0.72rem;
  text-align: center;
}

@media (max-width: 600px) {
  html {
    font-size: 16px;
  }

  .site-wrapper {
    width: min(calc(100% - 24px), var(--content-width));
    padding-top: 40px;
  }

  .site-header {
    margin-bottom: 32px;
  }

  .notice {
    padding: 20px;
  }

  .novel-body {
    line-height: 2.15;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto;
  }
}