:root {
    --ink: #1a1a1a;
    --ink-secondary: #4a4a4a;
    --ink-muted: #888;
    --bg: #fff;
    --bg-soft: #f8f7f4;
    --bg-card: #ffffff;
    --border: rgba(0,0,0,0.1);
    --border-strong: rgba(0,0,0,0.2);
    --accent: #e05a2b;
    --accent-soft: #fdf0eb;
    --accent-mid: #b8421b;
    --teal: #0f6e56;
    --teal-soft: #e1f5ee;
    --purple: #534ab7;
    --purple-soft: #eeedfe;
    --blue: #185fa5;
    --blue-soft: #e6f1fb;
    --amber: #ba7517;
    --amber-soft: #faeeda;
    --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Courier New', monospace;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--bg);
    font-size: 15px;
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 32px 80px;
  }
  /* COVER */
  .cover {
    padding: 64px 0 48px;
    border-bottom: 2px solid var(--ink);
    margin-bottom: 56px;
  }
  .cover-eyebrow {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
    font-weight: 500;
  }
  .cover h1 {
    font-size: 44px;
    font-weight: 300;
    letter-spacing: -1.5px;
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: 12px;
  }
  .cover h1 strong { font-weight: 700; color: var(--accent); }
  .cover-sub {
    font-size: 18px;
    color: var(--ink-secondary);
    font-weight: 300;
    margin-bottom: 32px;
    max-width: 620px;
    line-height: 1.6;
  }
  .cover-meta {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
  }
  .cover-meta-item { font-size: 13px; color: var(--ink-muted); }
  .cover-meta-item strong { color: var(--ink); }
  /* SECTIONS */
  .section { margin-bottom: 60px; }
  .section-label {
    font-size: 10px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: 8px;
  }
  h2 {
    font-size: 28px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 24px;
    color: var(--ink);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }
  h2 em { font-style: normal; color: var(--accent); font-weight: 500; }
  h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--ink);
    margin-top: 28px;
  }
  h3:first-child { margin-top: 0; }
  p { margin-bottom: 14px; color: var(--ink-secondary); }
  /* STAT GRID */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin: 24px 0;
  }
  .stat-card {
    background: var(--bg-soft);
    border-radius: 10px;
    padding: 16px;
  }
  .stat-num {
    font-size: 26px;
    font-weight: 300;
    letter-spacing: -1px;
    color: var(--ink);
  }
  .stat-num strong { font-weight: 700; color: var(--accent); }
  .stat-label { font-size: 12px; color: var(--ink-muted); margin-top: 4px; line-height: 1.4; }
  /* CARDS */
  .card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 12px;
    background: var(--bg-card);
  }
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    margin: 16px 0;
  }
  .card h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ink);
  }
  .card p { font-size: 13px; margin-bottom: 0; line-height: 1.6; }
  /* ACCENT CARDS */
  .card-accent {
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
  }
  .card-teal { border-left: 3px solid var(--teal); background: var(--teal-soft); }
  .card-purple { border-left: 3px solid var(--purple); background: var(--purple-soft); }
  .card-blue { border-left: 3px solid var(--blue); background: var(--blue-soft); }
  .card-amber { border-left: 3px solid var(--amber); background: var(--amber-soft); }
  /* CALLOUT */
  .callout {
    background: var(--ink);
    color: #fff;
    border-radius: 12px;
    padding: 24px 28px;
    margin: 24px 0;
  }
  .callout h4 { color: #fff; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; font-weight: 500; opacity: 0.6; }
  .callout p { color: rgba(255,255,255,0.85); font-size: 18px; font-weight: 300; line-height: 1.5; margin: 0; letter-spacing: -0.3px; }
  .callout strong { color: var(--accent); font-weight: 600; }
  /* VERDICT */
  .verdict {
    background: var(--accent);
    color: #fff;
    border-radius: 10px;
    padding: 20px 24px;
    margin: 20px 0;
  }
  .verdict-label { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; opacity: 0.75; margin-bottom: 6px; }
  .verdict p { color: #fff; margin: 0; font-size: 15px; }
  /* TABLE */
  table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px; }
  th {
    text-align: left;
    padding: 8px 12px;
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--ink-muted);
    border-bottom: 1px solid var(--border-strong);
    font-weight: 500;
  }
  td { padding: 10px 12px; border-bottom: 1px solid var(--border); color: var(--ink-secondary); vertical-align: top; }
  tr:last-child td { border-bottom: none; }
  td strong { color: var(--ink); font-weight: 600; }
  .badge {
    display: inline-block;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 500;
    margin: 2px 2px 2px 0;
  }
  .badge-green { background: #dcfce7; color: #15803d; }
  .badge-red { background: #fef2f2; color: #b91c1c; }
  .badge-amber { background: #fef3c7; color: #92400e; }
  .badge-blue { background: #dbeafe; color: #1e40af; }
  .badge-accent { background: var(--accent-soft); color: var(--accent-mid); }
  /* NORTHSTAR */
  .northstar {
    text-align: center;
    padding: 48px 24px;
    background: var(--bg-soft);
    border-radius: 16px;
    margin: 24px 0;
  }
  .northstar-icon { font-size: 40px; margin-bottom: 16px; }
  .northstar h3 { font-size: 22px; font-weight: 300; margin-bottom: 8px; color: var(--ink); }
  .northstar h3 strong { font-weight: 700; color: var(--accent); }
  .northstar p { font-size: 14px; color: var(--ink-muted); margin: 0; max-width: 500px; margin: 0 auto; }
  /* VALUE CHAIN */
  .chain {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin: 24px 0;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .chain-step {
    flex: 1;
    min-width: 110px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    padding: 14px 10px;
    text-align: center;
    position: relative;
  }
  .chain-step:first-child { border-radius: 10px 0 0 10px; }
  .chain-step:last-child { border-radius: 0 10px 10px 0; }
  .chain-step.active { background: var(--accent); border-color: var(--accent); }
  .chain-step.active .chain-label { color: #fff; }
  .chain-step.active .chain-sublabel { color: rgba(255,255,255,0.75); }
  .chain-arrow {
    display: flex;
    align-items: center;
    color: var(--border-strong);
    font-size: 18px;
    padding: 0 2px;
    flex-shrink: 0;
  }
  .chain-label { font-size: 11px; font-weight: 600; color: var(--ink); line-height: 1.3; margin-bottom: 4px; }
  .chain-sublabel { font-size: 10px; color: var(--ink-muted); line-height: 1.3; }
  /* PHASE */
  .phases { display: flex; flex-direction: column; gap: 16px; margin: 20px 0; }
  .phase {
    display: flex;
    gap: 20px;
    align-items: flex-start;
  }
  .phase-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .phase-body h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; color: var(--ink); }
  .phase-body p { font-size: 13px; color: var(--ink-secondary); margin: 0; }
  /* KPI grid */
  .kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin: 16px 0;
  }
  .kpi-card {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
  }
  .kpi-category {
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: 8px;
  }
  .kpi-item {
    font-size: 13px;
    color: var(--ink-secondary);
    padding: 4px 0;
    border-bottom: 1px solid var(--border);
    line-height: 1.4;
  }
  .kpi-item:last-child { border-bottom: none; }
  hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
  .page-break { border-top: 2px dashed var(--border); margin: 60px 0; padding-top: 16px; }
  .page-break-label { font-size: 11px; color: var(--ink-muted); letter-spacing: 1px; text-transform: uppercase; text-align: center; }
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 16px 0; }
  @media (max-width: 600px) {
    .two-col { grid-template-columns: 1fr; }
    .cover h1 { font-size: 32px; }
    .chain { flex-wrap: nowrap; }
  }
  ul { padding-left: 20px; margin-bottom: 14px; }
  ul li { color: var(--ink-secondary); font-size: 14px; margin-bottom: 6px; line-height: 1.6; }
  ul li strong { color: var(--ink); }
  .footnote { font-size: 12px; color: var(--ink-muted); border-top: 1px solid var(--border); padding-top: 12px; margin-top: 40px; }


/* ─── SITE NAV ────────────────────────────────────────────────── */
.site-nav {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  margin: 0 -32px 40px;
  padding: 0 32px;
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
  flex-wrap: wrap;
}
.nav-brand {
  font-size: 16px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.3px;
  font-weight: 400;
  white-space: nowrap;
}
.nav-brand strong { color: var(--accent); font-weight: 700; }
.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.nav-links li { margin: 0; }
.nav-links a {
  font-size: 13px;
  color: var(--ink-secondary);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 500;
}

/* ─── HAMBURGER (mobile only) ─────────────────────────────────── */
.nav-toggle-cb { display: none; }
.nav-toggle {
  display: none;
  cursor: pointer;
  width: 28px;
  height: 22px;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

/* ─── SITE FOOTER ─────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  margin: 80px -32px 0;
  padding: 48px 32px 32px;
  background: var(--bg-soft);
}
.footer-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 14px;
  font-weight: 600;
}
.footer-col p, .footer-col li {
  font-size: 13px;
  color: var(--ink-secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col a {
  color: var(--ink-secondary);
  text-decoration: none;
}
.footer-col a:hover { color: var(--accent); }
.footer-tag { font-size: 12px; color: var(--ink-muted); line-height: 1.55; }
.footer-bottom {
  max-width: 900px;
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--ink-muted);
  text-align: center;
}
.footer-bottom a { color: var(--ink-secondary); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent); }

/* Card-as-link styling (used on home Explore section) */
a.card { text-decoration: none; color: inherit; display: block; transition: transform 0.15s, box-shadow 0.15s; }
a.card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.06); }

/* ─── BREADCRUMB ────────────────────────────────────────────── */
.breadcrumb {
  font-size: 12px;
  color: var(--ink-muted);
  margin: 0 0 28px;
  letter-spacing: 0.3px;
  line-height: 1.5;
}
.breadcrumb a {
  color: var(--ink-secondary);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { margin: 0 8px; color: var(--ink-muted); opacity: 0.6; }
.breadcrumb-current { color: var(--ink); font-weight: 500; }

/* ─── PAGE NAV (prev / hub / next) ──────────────────────────── */
.page-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  align-items: stretch;
}
.page-nav-prev,
.page-nav-next {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  transition: border-color 0.15s, background 0.15s;
  color: var(--ink);
}
.page-nav-prev:hover,
.page-nav-next:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.page-nav-next { text-align: right; align-items: flex-end; }
.page-nav-prev { text-align: left; align-items: flex-start; }
.page-nav-dir {
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.page-nav-title {
  color: var(--ink);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.35;
}
.page-nav-hub {
  align-self: center;
  font-size: 12px;
  color: var(--ink-muted);
  text-decoration: none;
  padding: 8px 12px;
  white-space: nowrap;
}
.page-nav-hub:hover { color: var(--accent); }

@media (max-width: 600px) {
  .page-nav { grid-template-columns: 1fr; gap: 8px; }
  .page-nav-next { text-align: left; align-items: flex-start; }
  .page-nav-hub { align-self: stretch; text-align: center; padding: 12px; border: 1px solid var(--border); border-radius: 10px; }
}

@media (max-width: 700px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 8px 0 4px;
    margin-top: 14px;
    border-top: 1px solid var(--border);
    order: 99;
  }
  .nav-links li { margin: 0; width: 100%; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a {
    display: block;
    padding: 14px 4px;
    font-size: 14px;
    border-bottom: none;
  }
  .nav-links a.active {
    border-bottom: none;
    background: var(--accent-soft);
    margin: 0 -8px;
    padding-left: 12px;
    padding-right: 12px;
  }
  .nav-toggle-cb:checked ~ .nav-links { display: flex; }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
  }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
  }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}