:root {
  --ink: #121417;
  --ink-2: #1b2027;
  --night: #0f1720;
  --paper: #f3eadb;
  --paper-2: #e6dac8;
  --text: #ece4d5;
  --muted: #b9ad9d;
  --line: rgba(238, 225, 204, 0.16);
  --brass: #d7aa63;
  --teal: #76b8ad;
  --rust: #c46a54;
  --card: rgba(255, 250, 237, 0.08);
  --card-strong: rgba(255, 250, 237, 0.13);
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.34);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(15, 23, 32, 0.94), rgba(18, 20, 23, 1) 46rem),
    radial-gradient(circle at 20% 0%, rgba(118, 184, 173, 0.12), transparent 34rem);
  color: var(--text);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  line-height: 1.75;
  letter-spacing: 0;
}

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

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

a:hover {
  color: #fff3d6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  background: rgba(15, 20, 27, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.site-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.mark-symbol {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid rgba(215, 170, 99, 0.48);
  color: var(--brass);
  font-family: Georgia, serif;
  font-size: 1.35rem;
  line-height: 1;
}

.site-mark strong,
.site-mark small {
  display: block;
}

.site-mark strong {
  font-size: 1.05rem;
}

.site-mark small {
  max-width: 34rem;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.35;
}

.site-nav {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.55rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(238, 225, 204, 0.18);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.92rem;
}

.site-nav a:hover,
.button:hover {
  border-color: rgba(215, 170, 99, 0.72);
  background: rgba(215, 170, 99, 0.1);
}

.button.primary {
  background: var(--brass);
  border-color: var(--brass);
  color: #211912;
  font-weight: 700;
}

.button.secondary {
  background: rgba(18, 20, 23, 0.54);
}

.hero {
  min-height: min(82vh, 780px);
  display: flex;
  align-items: center;
  padding: clamp(3rem, 8vw, 7rem) clamp(1rem, 5vw, 5rem);
  background:
    linear-gradient(90deg, rgba(9, 14, 20, 0.9), rgba(9, 14, 20, 0.72) 42%, rgba(9, 14, 20, 0.18) 72%, rgba(9, 14, 20, 0.08)),
    var(--hero-image) right center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.hero-content {
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--brass);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.page-title h1,
.article-hero h1 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", Georgia, serif;
  font-weight: 700;
  line-height: 1.18;
}

.hero h1 {
  font-size: clamp(3rem, 10vw, 6.6rem);
}

.subtitle {
  margin: 0.45rem 0 1.2rem;
  color: #f6dba5;
  font-size: clamp(1rem, 2vw, 1.35rem);
}

.hero-description {
  max-width: 46rem;
  margin: 0;
  color: #efe2ca;
  font-size: clamp(1rem, 1.7vw, 1.14rem);
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.section-wrap,
.page-shell,
.article-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.section-wrap {
  padding: clamp(2.7rem, 6vw, 5rem) 0;
}

.feature-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
}

.category-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 1rem;
}

.article-grid.small {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}

.category-card,
.article-card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--category-accent, var(--brass));
  border-radius: 8px;
  background: linear-gradient(180deg, var(--card-strong), var(--card));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
}

.category-card {
  display: block;
  padding: 1.1rem;
}

.category-card span,
.category-label {
  display: inline-flex;
  align-items: center;
  min-height: 1.7rem;
  padding: 0.15rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--category-accent, var(--brass)) 55%, transparent);
  border-radius: 999px;
  color: #f8dfac;
  font-size: 0.78rem;
}

.category-card h3,
.article-card h3 {
  margin: 0.85rem 0 0.45rem;
  line-height: 1.45;
}

.category-card p,
.article-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.article-card {
  overflow: hidden;
}

.card-link {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 1.05rem;
}

.article-card.compact .card-link {
  padding: 0.95rem;
}

.article-card.muted {
  opacity: 0.76;
}

.card-tags,
.tag-list,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.card-tags {
  margin-top: 1rem;
}

.card-tags span,
.tag-list a,
.tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: rgba(118, 184, 173, 0.1);
  border: 1px solid rgba(118, 184, 173, 0.22);
  color: #d6eee8;
  font-size: 0.8rem;
}

.tag-pill span {
  margin-left: 0.4rem;
  color: var(--brass);
}

.tag-tools {
  display: grid;
  gap: 1rem;
}

.tag-filter {
  display: grid;
  gap: 0.35rem;
  max-width: 36rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.tag-filter input {
  width: 100%;
  min-height: 2.8rem;
  border: 1px solid rgba(238, 225, 204, 0.2);
  border-radius: 6px;
  background: rgba(255, 250, 237, 0.08);
  color: var(--text);
  padding: 0.6rem 0.8rem;
  font: inherit;
}

.tag-cloud.large .tag-pill {
  min-height: 2.2rem;
  padding-inline: 0.75rem;
}

.page-shell {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-title {
  max-width: 760px;
  margin-bottom: 2rem;
}

.page-title h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
}

.page-title p {
  color: var(--muted);
}

.category-title {
  border-left: 4px solid var(--category-accent, var(--brass));
  padding-left: 1rem;
}

.breadcrumbs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.breadcrumbs a {
  color: #f0d296;
}

.article-shell {
  padding: clamp(2rem, 5vw, 4.5rem) 0;
}

.article-main {
  display: grid;
  gap: 1.5rem;
}

.article-hero {
  padding: clamp(1.25rem, 4vw, 2.1rem);
  border: 1px solid var(--line);
  border-top: 4px solid var(--category-accent, var(--brass));
  border-radius: 8px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--category-accent, var(--brass)) 18%, transparent), transparent 42%),
    rgba(255, 250, 237, 0.08);
  box-shadow: var(--shadow);
}

.article-hero h1 {
  margin-top: 0.9rem;
  font-size: clamp(2rem, 5vw, 3.4rem);
}

.lead {
  max-width: 52rem;
  color: #f0dfc0;
  font-size: 1.08rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin: 1rem 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.article-body {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border-radius: 8px;
  background: #f1e7d4;
  color: #202124;
  box-shadow: var(--shadow);
}

.article-body h2,
.article-body h3,
.article-body h4 {
  margin: 2rem 0 0.6rem;
  color: #1c2527;
  line-height: 1.45;
}

.article-body h2 {
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(70, 55, 35, 0.18);
  font-size: 1.45rem;
}

.article-body p {
  margin: 0.85rem 0;
}

.article-body a {
  color: #7b452f;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.article-body blockquote {
  margin: 1.2rem 0;
  padding: 0.8rem 1rem;
  border-left: 4px solid #b98245;
  background: rgba(122, 79, 38, 0.08);
}

.article-related {
  padding-top: 2.4rem;
}

.prev-next {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.prev-next a {
  display: grid;
  gap: 0.25rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
}

.prev-next span {
  color: var(--muted);
  font-size: 0.82rem;
}

.empty-note {
  color: var(--muted);
}

.site-footer {
  margin-top: 3rem;
  padding: 2rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: rgba(7, 10, 14, 0.46);
}

.site-footer p {
  width: min(980px, 100%);
  margin: 0 auto;
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    justify-content: stretch;
  }

  .site-nav a {
    flex: 1;
  }

  .hero {
    min-height: 560px;
    min-height: min(600px, calc(100svh - 7.5rem));
    align-items: end;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
    background:
      linear-gradient(180deg, rgba(9, 14, 20, 0.18), rgba(9, 14, 20, 0.92) 58%),
      var(--hero-image) 58% center / cover no-repeat;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .article-body {
    border-radius: 6px;
  }

  .prev-next {
    grid-template-columns: 1fr;
  }
}