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

:root {
  --red: #e42313;
  --black: #0a0a0a;
  --white: #ffffff;
  --bg: #fafafa;
  --line: #dedede;
  --muted: #666666;
  --aichan: #d92762;
  --kiyogon: #2f5366;
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', 'Noto Sans JP', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--black);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--black);
  border-bottom: 3px solid var(--red);
}

.site-nav__inner {
  max-width: 1180px;
  height: 56px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-nav__logo {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--white);
}

.site-nav__logo span {
  color: var(--red);
}

.site-nav__links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.site-nav__links a {
  border-bottom: 2px solid transparent;
  padding-bottom: 0.2rem;
}

.site-nav__links a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.narrow {
  width: min(760px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.blog-hero {
  padding: 2.25rem 0 1.5rem;
  border-bottom: 4px solid var(--red);
  background: var(--white);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--red);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.blog-hero h1,
.article-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2.75rem;
  line-height: 1;
  font-weight: 900;
}

.blog-hero__lead,
.article-header__lead {
  margin: 0.8rem 0 0;
  max-width: 760px;
  color: #333333;
  font-family: var(--font-jp);
  font-size: 0.98rem;
  line-height: 1.9;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-family: var(--font-jp);
  font-size: 0.86rem;
}

.breadcrumbs a {
  border-bottom: 1px solid var(--line);
}

.breadcrumbs a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.section {
  padding: 2.25rem 0;
}

.section--compact {
  padding-top: 0.5rem;
}

.section-title {
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 4px solid var(--black);
  font-family: var(--font-jp);
  font-size: 1.5rem;
  font-weight: 800;
}

.series-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.latest-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(320px, 1.05fr);
  gap: 0;
  border-top: 5px solid var(--red);
  background: var(--white);
  box-shadow: 0 16px 36px rgba(10, 10, 10, 0.08);
}

.latest-card__image {
  min-height: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eeeeee;
}

.latest-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.latest-card__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.5rem;
}

.latest-card h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-jp);
  font-size: 1.45rem;
  line-height: 1.45;
}

.latest-card p {
  margin: 0;
  color: #444444;
  font-family: var(--font-jp);
}

.series-card,
.article-card {
  display: block;
  border-top: 5px solid var(--red);
  background: var(--white);
  box-shadow: 0 16px 36px rgba(10, 10, 10, 0.08);
}

.series-card__body,
.article-card__body {
  padding: 1.25rem;
}

.series-card h2,
.article-card h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-jp);
  font-size: 1.25rem;
  line-height: 1.45;
}

.series-card p,
.article-card p {
  margin: 0;
  color: #444444;
  font-family: var(--font-jp);
  font-size: 0.95rem;
}

.article-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eeeeee;
}

.article-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-family: var(--font-jp);
  font-size: 0.86rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  padding: 0.1rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
}

.article-header {
  padding: 3.5rem 0 2rem;
  background: var(--white);
  border-bottom: 8px solid var(--red);
}

.cover {
  margin: 2rem auto 0;
  width: min(1120px, calc(100% - 2.5rem));
}

.cover img {
  width: 100%;
  border: 1px solid var(--line);
}

.article-body {
  padding: 1.5rem 0 3rem;
  background: var(--white);
}

.article-preview {
  padding: 24px;
  border: 1px solid rgba(61, 52, 44, 0.12);
  border-radius: 8px;
  background: #fffdf9;
  box-shadow: 0 18px 50px rgba(44, 38, 32, 0.08);
}

.article-preview h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 2.45rem;
  line-height: 1.12;
  font-weight: 900;
}

.article-preview p {
  margin: 0 0 22px;
  color: #2e2822;
  font-family: var(--font-jp);
  font-size: 1.05rem;
  line-height: 1.85;
  white-space: pre-wrap;
}

.article-preview p.dialogue-paragraph {
  margin-left: 8px;
  padding: 11px 14px 12px 16px;
  border-left: 4px solid rgba(61, 52, 44, 0.2);
  border-radius: 0 8px 8px 0;
}

.article-preview p.speaker-aichan {
  border-left-color: #c63b78;
  color: #2c1724;
  background: rgba(198, 59, 120, 0.07);
}

.article-preview p.speaker-kiyogon {
  border-left-color: #2d8b80;
  color: #172724;
  background: rgba(45, 139, 128, 0.08);
}

.article-preview p.speaker-unknown {
  border-left-color: #9c8a73;
  background: rgba(156, 138, 115, 0.08);
}

.preview-image {
  margin: 24px 0;
}

.preview-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(61, 52, 44, 0.12);
  background: #ece6dc;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--black);
  font-family: var(--font-jp);
  font-weight: 700;
}

.article-nav a {
  color: var(--red);
}

.footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.65);
  padding: 1.5rem 0;
  font-family: var(--font-body);
  font-size: 0.8rem;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

@media (max-width: 760px) {
  .site-nav__inner {
    height: auto;
    padding: 1rem 1.25rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.85rem;
  }

  .site-nav__links {
    flex-wrap: wrap;
    row-gap: 0.5rem;
  }

  .series-grid {
    grid-template-columns: 1fr;
  }

  .latest-card {
    grid-template-columns: 1fr;
  }

  .blog-hero,
  .article-header {
    padding-top: 1.75rem;
  }

  .blog-hero h1,
  .article-header h1 {
    font-size: 2.15rem;
  }

  .article-preview {
    padding: 22px;
  }

  .article-preview h1 {
    font-size: 2rem;
  }

  .article-nav,
  .footer__inner {
    flex-direction: column;
  }
}