/* ============================================
   Multi-page layout — header / footer / transitions
   ============================================ */

/* ---- View Transitions (Chrome / Safari modern) ---- */
@view-transition { navigation: auto; }

::view-transition-group(root) {
  animation-duration: .42s;
  animation-timing-function: cubic-bezier(.32,.72,.32,1);
}
::view-transition-old(root) {
  animation: vt-fade-out .28s cubic-bezier(.4,0,.2,1) both;
}
::view-transition-new(root) {
  animation: vt-fade-in .42s cubic-bezier(.22,.61,.36,1) both;
}
@keyframes vt-fade-out {
  to { opacity: 0; }
}
@keyframes vt-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Avoid white flash by matching backdrop to ink */
html { background: var(--ink-deep); }

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none; }
}

/* ---- Static header (used on non-hero pages) ---- */
.site-header--static {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 18px 0;
  background: rgba(11,20,38,.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--on-dark-line);
}
.site-header--static .site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.site-header--static .brand { display: flex; align-items: center; gap: 10px; color: var(--on-dark-1); }
.site-header--static .brand-mark { color: var(--gold); }
.site-header--static .brand-text { display: flex; flex-direction: column; }
.site-header--static .brand-title { font-family: var(--f-serif); font-size: 18px; letter-spacing: .04em; }
.site-header--static .brand-sub { font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em; color: var(--on-dark-2); }
.site-header--static .site-nav { display: flex; gap: 28px; }
.site-header--static .site-nav a {
  font-size: 13px; color: var(--on-dark-2); letter-spacing: .04em;
  transition: color .25s var(--e-out);
}
.site-header--static .site-nav a:hover,
.site-header--static .site-nav a[aria-current="page"] { color: var(--on-dark-1); }
.site-header--static .site-nav a[aria-current="page"] { color: var(--gold); }

@media (max-width: 820px) {
  .site-header--static .site-nav { display: none; }
}

/* ---- Page hero (dark, compact) ---- */
.page-hero {
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero .breadcrumb {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--on-dark-2);
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 24px;
}
.page-hero .breadcrumb a { color: var(--on-dark-2); transition: color .2s; }
.page-hero .breadcrumb a:hover { color: var(--gold); }
.page-hero .breadcrumb .sep { color: var(--on-dark-3); }
.page-hero h1 {
  font-family: var(--f-serif);
  font-size: clamp(34px, 5.2vw, 60px);
  line-height: 1.22;
  margin: 0;
  color: var(--on-dark-1);
}
.page-hero .lede-dark {
  margin-top: 18px;
  max-width: 720px;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.85;
  color: var(--on-dark-2);
}

/* ---- Section on paper ---- */
.page-section {
  padding: 96px 0;
}
.page-section h2 {
  font-family: var(--f-serif);
  font-size: clamp(24px, 3.4vw, 36px);
  margin: 0 0 32px;
  letter-spacing: .005em;
}
.page-section h3 {
  font-family: var(--f-serif);
  font-size: 22px;
  margin: 32px 0 16px;
}
.page-section p { margin: 0 0 16px; color: var(--on-light-2); }
.page-section a.inline-link {
  color: var(--ink-deep);
  border-bottom: 1px solid var(--gold);
  transition: color .2s, background .2s;
  padding-bottom: 1px;
}
.page-section a.inline-link:hover { color: var(--gold); }

/* ---- Card grids (reusable) ---- */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--on-light-line);
  border-radius: var(--r-lg);
  padding: 28px 26px;
  transition: transform .35s var(--e-out), box-shadow .35s var(--e-out), border-color .35s var(--e-out);
  display: flex; flex-direction: column; gap: 12px;
  height: 100%;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-soft);
  box-shadow: var(--sh-2);
}
.card .code {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}
.card h3 {
  font-family: var(--f-serif);
  font-size: 22px;
  margin: 0;
  line-height: 1.4;
}
.card .blurb { font-size: 14px; color: var(--on-light-2); line-height: 1.7; }
.card .group-tag {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: .14em;
  padding: 4px 10px;
  border-radius: 999px;
  align-self: flex-start;
  background: rgba(20,33,61,.05);
  color: var(--on-light-3);
  text-transform: uppercase;
}
.card.group-analyst   .group-tag { background: rgba(143,163,199,.18); color: #4A5C82; }
.card.group-diplomat  .group-tag { background: rgba(181,160,192,.18); color: #6B4E80; }
.card.group-sentinel  .group-tag { background: rgba(201,165,101,.18); color: #8B6E33; }
.card.group-explorer  .group-tag { background: rgba(181,130,154,.18); color: #8C4E6B; }

.card .more {
  margin-top: auto;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
  display: inline-flex; align-items: center; gap: 6px;
}
.card .more::after { content: "→"; transition: transform .3s var(--e-out); }
.card:hover .more::after { transform: translateX(4px); }

/* ---- Two-column content ---- */
.content-2col {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 880px) {
  .content-2col { grid-template-columns: 1fr; gap: 32px; }
}
.content-side {
  position: sticky; top: 100px;
  padding: 28px;
  border: 1px solid var(--on-light-line);
  border-radius: var(--r-lg);
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(6px);
}
.content-side h4 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold);
  margin: 0 0 12px;
  text-transform: uppercase;
}
.content-side ul { list-style: none; padding: 0; margin: 0; }
.content-side li {
  padding: 10px 0;
  border-bottom: 1px solid var(--on-light-line);
  font-size: 14px;
}
.content-side li:last-child { border-bottom: 0; }
.content-side a { color: var(--on-light-2); transition: color .2s; }
.content-side a:hover, .content-side a[aria-current="page"] { color: var(--ink-deep); }

/* ---- Themed sub-cards (for type pages) ---- */
.theme-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--on-light-line);
}
.theme-row:last-child { border-bottom: 0; }
.theme-row .theme-key {
  font-family: var(--f-serif);
  font-size: 20px;
  color: var(--ink-deep);
}
.theme-row .theme-key .kana {
  display: block;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--gold);
  margin-top: 4px;
}
.theme-row .theme-body p { margin: 0 0 10px; }
.theme-row .theme-body .tag-list {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px;
}
.theme-row .theme-body .tag-list span {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(20,33,61,.05); color: var(--on-light-3);
}

@media (max-width: 720px) {
  .theme-row { grid-template-columns: 1fr; gap: 8px; }
}

/* ---- Article list ---- */
.article-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.article-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 24px;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--on-light-line);
  border-radius: var(--r-lg);
  align-items: center;
  transition: transform .35s var(--e-out), border-color .35s var(--e-out);
}
.article-row:hover { transform: translateY(-2px); border-color: var(--gold-soft); }
.article-row .meta {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; color: var(--gold);
}
.article-row .title { font-family: var(--f-serif); font-size: 18px; color: var(--ink-deep); line-height: 1.5; }
.article-row .excerpt { font-size: 13px; color: var(--on-light-2); margin-top: 4px; }
.article-row .read { font-family: var(--f-mono); font-size: 11px; letter-spacing: .2em; color: var(--gold); }
@media (max-width: 720px) {
  .article-row { grid-template-columns: 1fr; padding: 20px; }
  .article-row .read { display: none; }
}

/* ---- Article body ---- */
.prose {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--on-light-1);
}
.prose h2 { font-family: var(--f-serif); font-size: 26px; margin: 56px 0 16px; }
.prose h3 { font-family: var(--f-serif); font-size: 20px; margin: 36px 0 12px; }
.prose p { margin: 0 0 18px; }
.prose blockquote {
  margin: 28px 0;
  padding: 16px 24px;
  border-left: 3px solid var(--gold);
  background: rgba(201,165,101,.06);
  font-family: var(--f-serif);
  font-size: 17px;
  color: var(--ink-deep);
}
.prose ul { padding-left: 22px; margin: 0 0 18px; }
.prose li { margin: 6px 0; }
.prose hr { border: 0; height: 1px; background: var(--on-light-line); margin: 48px 0; }

/* ---- CTA strip ---- */
.cta-strip {
  margin: 80px 0 0;
  padding: 48px 56px;
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, var(--ink-deep), var(--ink-mid));
  color: var(--on-dark-1);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.cta-strip h3 { font-family: var(--f-serif); font-size: 24px; margin: 0 0 8px; }
.cta-strip p { color: var(--on-dark-2); margin: 0; font-size: 14px; }
@media (max-width: 720px) {
  .cta-strip { grid-template-columns: 1fr; padding: 32px 28px; text-align: left; }
}

/* ---- Footer ---- */
.site-footer {
  background: var(--ink-deep);
  color: var(--on-dark-2);
  padding: 64px 0 40px;
  margin-top: 80px;
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.site-footer .brand-title { font-family: var(--f-serif); font-size: 18px; color: var(--on-dark-1); }
.site-footer .brand-tag {
  margin-top: 12px;
  font-size: 13px;
  color: var(--on-dark-2);
  line-height: 1.8;
}
.site-footer h5 {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .2em;
  color: var(--gold); margin: 0 0 14px; text-transform: uppercase;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 8px 0; font-size: 13px; }
.site-footer a { color: var(--on-dark-2); transition: color .2s; }
.site-footer a:hover { color: var(--on-dark-1); }
.site-footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--on-dark-line);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 12px; color: var(--on-dark-3);
}

@media (max-width: 880px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* ---- Page transition: hint on link hover ---- */
.page-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em;
  color: var(--gold);
  transition: gap .25s var(--e-out);
}
.page-link::after { content: "→"; transition: transform .3s var(--e-out); }
.page-link:hover { gap: 12px; }
.page-link:hover::after { transform: translateX(4px); }