:root {
  --dark-canvas: #0A1628;
  --dark-canvas-deep: #061020;
  --dark-surface: #101F38;
  --dark-surface-raised: #12294A;
  --dark-border: rgba(255, 255, 255, 0.08);
  --dark-border-strong: rgba(255, 255, 255, 0.16);
  --dark-border-accent: rgba(78, 155, 245, 0.35);
  --dark-text: #E6EDF7;
  --dark-text-muted: #93A9C4;
  --dark-text-faint: #61748F;
  --blue-on-dark: #4E9BF5;
  --blue-on-dark-hover: #7FBBFF;
  --blue-ink: #04162C;
  --font-core: "Plus Jakarta Sans", "Figtree", system-ui, sans-serif;
  --font-display: "Figtree", "Plus Jakarta Sans", system-ui, sans-serif;
  --r-sm: 10px;
  --r-lg: 18px;
  --glow-blue-soft: 0 12px 40px -14px rgba(0, 143, 254, 0.35);
}

@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 160ms; animation-timing-function: ease; }

* { box-sizing: border-box; }
html { background: var(--dark-canvas); color-scheme: dark; }
html, body { margin: 0; min-height: 100%; max-width: 100%; overflow-x: hidden; }
body {
  background: var(--dark-canvas);
  color: var(--dark-text);
  font-family: var(--font-core);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
strong { color: #fff; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 22, 40, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--dark-border);
}
.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  flex: 0 0 auto;
  font: 800 20px/1 "Big Shoulders Display", var(--font-display);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #fff;
}
.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
  align-items: center;
}
.site-nav a {
  padding: 8px 12px;
  border-radius: var(--r-sm);
  font: 500 14px/1 var(--font-core);
  color: var(--dark-text-muted);
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { background: rgba(255, 255, 255, 0.06); color: #fff; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--r-sm);
  background: var(--blue-on-dark);
  color: var(--blue-ink);
  font: 700 14px/1 var(--font-core);
  box-shadow: var(--glow-blue-soft);
  border: 0;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease;
}
.btn:hover { background: var(--blue-on-dark-hover); transform: translateY(-1px); color: var(--blue-ink); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--r-sm);
  border: 1px solid var(--dark-border-strong);
  color: #fff;
  font: 600 14px/1 var(--font-core);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--blue-on-dark); background: rgba(78, 155, 245, 0.12); }

.wrap { width: min(1080px, calc(100% - 48px)); margin: 0 auto; }
.wrap-narrow { width: min(760px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow,
.label {
  font: 700 11px/1 var(--font-core);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-on-dark);
  margin-bottom: 14px;
}

.page-hero { padding: 88px 0 28px; }
.page-hero h1 {
  margin: 0 0 16px;
  font: 500 clamp(2rem, 4vw, 2.9rem)/1.14 var(--font-display);
  letter-spacing: -0.018em;
  color: #fff;
  text-wrap: pretty;
}
.page-hero p {
  margin: 0;
  max-width: 640px;
  color: var(--dark-text-muted);
  font: 400 18px/1.55 var(--font-display);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 18px;
  padding: 36px 0 80px;
}
.post-card {
  display: flex;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  background: var(--dark-surface);
  color: var(--dark-text);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}
.post-card:hover {
  transform: translateY(-3px);
  border-color: var(--dark-border-accent);
  box-shadow: 0 22px 56px -30px rgba(0, 143, 254, 0.5);
}
.post-card .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.chip {
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(78, 155, 245, 0.12);
  border: 1px solid var(--dark-border-accent);
  font: 700 11px/1 var(--font-core);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--blue-on-dark);
}
.read-time { font-size: 12px; letter-spacing: 0.04em; color: var(--dark-text-faint); }
.post-card h2 {
  font: 600 22px/1.35 var(--font-core);
  color: #fff;
  margin: 0 0 10px;
}
.post-card p {
  font: 400 14px/1.6 var(--font-core);
  color: var(--dark-text-muted);
  margin: 0 0 20px;
}
.post-card .more {
  margin-top: auto;
  font: 600 14px/1 var(--font-core);
  color: var(--blue-on-dark);
}

.closing {
  padding: 72px 24px 88px;
  background: #081D33;
  border-top: 1px solid var(--dark-border);
  text-align: center;
}
.closing h2 {
  margin: 0 auto 16px;
  max-width: 640px;
  font: 500 clamp(1.8rem, 3.4vw, 2.6rem)/1.15 var(--font-display);
  color: #fff;
}
.closing p {
  margin: 0 auto 28px;
  max-width: 520px;
  color: var(--dark-text-muted);
}
.closing .actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

.site-footer {
  padding: 28px 24px 40px;
  color: var(--dark-text-faint);
  font-size: 13px;
  border-top: 1px solid var(--dark-border);
}
.site-footer .foot {
  width: min(1080px, 100%);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a:hover { color: #fff; }

.article-hero { padding: 96px 0 20px; }
.article-hero h1 {
  margin: 0 0 16px;
  font: 500 clamp(1.9rem, 4.2vw, 3rem)/1.12 var(--font-display);
  letter-spacing: -0.02em;
  color: #fff;
  text-wrap: pretty;
}
.article-hero .deck {
  margin: 0 0 18px;
  color: var(--dark-text-muted);
  font: 400 18px/1.55 var(--font-display);
  max-width: 640px;
}
.article-hero .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
  padding: 0;
  background: none;
  border: 0;
}
.article-hero .meta span {
  color: var(--dark-text-faint);
  font-size: 13px;
}
.article-hero .hero-img {
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--dark-surface);
  margin-bottom: 8px;
}
.caption { font-size: 13px; color: var(--dark-text-faint); margin: 8px 0 28px; }

.article { padding: 12px 0 72px; }
.article p, .article li { color: var(--dark-text-muted); }
.article p { margin: 0 0 18px; }
.article a { color: var(--blue-on-dark); }
.article a:hover { color: var(--blue-on-dark-hover); }
.article h2 {
  font: 500 clamp(1.4rem, 2.4vw, 1.85rem)/1.2 var(--font-display);
  color: #fff;
  margin: 40px 0 12px;
  letter-spacing: -0.015em;
}
.article h3 {
  font: 600 18px/1.3 var(--font-core);
  color: #fff;
  margin: 26px 0 8px;
}
.article ul, .article ol { padding-left: 22px; margin: 0 0 20px; }
.article li { margin-bottom: 8px; }
.article .hero-img,
.article .article-img {
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--dark-surface);
  margin: 28px 0 8px;
}

.note, .takeaways, .callout, .toc {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  margin: 0 0 28px;
  box-shadow: none;
}
.toc-links { display: flex; flex-wrap: wrap; gap: 8px; }
.toc a {
  border: 1px solid var(--dark-border);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--dark-text-muted);
  font-size: 13px;
  font-weight: 600;
}
.toc a:hover { color: #fff; border-color: var(--dark-border-accent); }
.takeaways ul { margin: 8px 0 0; }
.stat-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--dark-border);
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 28px 0;
}
.stat-band div { background: var(--dark-surface); padding: 20px; border: 0; }
.stat-band span { display: block; color: var(--blue-on-dark); font-size: 28px; font-weight: 800; line-height: 1; }
.stat-band p { font-size: 13px; margin: 10px 0 0; }
.checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 20px 0;
}
.checkitem {
  border: 1px solid var(--dark-border);
  background: var(--dark-surface);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  color: var(--dark-text-muted);
  font-weight: 600;
  font-size: 14px;
}
.faq details {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--r-lg);
  padding: 16px 18px;
  margin-top: 10px;
}
.faq summary { cursor: pointer; font-weight: 700; color: #fff; }
.faq p { margin-top: 10px; }

@media (max-width: 860px) {
  .site-header-inner {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    gap: 10px;
  }
  .brand {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .site-nav { display: none; }
  .site-header-inner > .btn {
    flex: 0 0 auto;
    height: 40px;
    padding: 0 12px;
    font-size: 13px;
    white-space: nowrap;
  }
  .wrap, .wrap-narrow { width: calc(100% - 32px); }
  .page-hero { padding: 36px 0 12px; }
  .page-hero h1 { font-size: 1.7rem; line-height: 1.18; }
  .page-hero p { font-size: 16px; }
  .post-grid { padding: 20px 0 48px; gap: 12px; }
  .post-card { padding: 20px; }
  .post-card:hover { transform: none; }
  .article-hero { padding: 36px 0 12px; }
  .article-hero h1 { font-size: 1.65rem; line-height: 1.18; }
  .article-hero .deck { font-size: 16px; }
  .closing { padding: 48px 16px 72px; }
  .closing h2 { font-size: 1.55rem; }
  .closing .actions { flex-direction: column; align-items: stretch; }
  .closing .btn, .closing .btn-ghost { width: 100%; }
  .stat-band, .checklist { grid-template-columns: 1fr; }
  .btn, .btn-ghost { height: 46px; }
  .toc { padding: 16px; }
}