:root {
  --bg-white: #ffffff;
  --bg-alt: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --accent-blue: #1d4ed8;
  --accent-blue-hover: #1e40af;
  --accent-soft: #eff6ff;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-white);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background-color: var(--bg-white);
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-blue-hover);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-logo:hover {
  color: var(--text-primary);
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--accent-blue);
  display: inline-block;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.75rem 1.4rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--accent-blue);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-blue-hover);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-primary);
  border-color: #cbd5e1;
}

.btn-secondary:hover {
  background: var(--bg-alt);
  color: var(--text-primary);
  border-color: #94a3b8;
}

.text-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-blue);
}

/* Eyebrow & Labels */
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
}

/* Hero Section */
.hero-section {
  padding: 5.5rem 0 4.5rem;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  max-width: 920px;
}

.hero-headline {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2.2rem, 3.8vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0 0 1.5rem;
}

.hero-intro-copy {
  font-size: 1.12rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0 0 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Metrics Bar */
.metrics-section {
  padding: 2.75rem 0;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.metric-card {
  padding-left: 1.25rem;
  border-left: 3px solid var(--accent-blue);
}

.metric-value {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 500;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.metric-delta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Section Layout */
.section-block {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-header {
  max-width: 720px;
  margin-bottom: 3rem;
}

.section-header h2, .section-header-split h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 2.6vw, 2.4rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0.75rem 0 0;
}

.section-header-split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  margin-bottom: 2.75rem;
}

/* Pillars Grid */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.pillar-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.75rem;
}

.pillar-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.pillar-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.pillar-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-alt);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.pillar-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.65rem;
}

.pillar-prose p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Markdown Prose */
.markdown-prose {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}

.markdown-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}

.markdown-prose h2:first-child {
  margin-top: 0;
}

.markdown-prose h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.75rem 0 0.5rem;
}

.markdown-prose h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin: 1.75rem 0 0.5rem;
}

.markdown-prose hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 2.25rem 0;
}

.markdown-prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.35rem;
  background: var(--bg-alt);
  border-left: 3px solid var(--accent-blue);
  color: var(--text-primary);
  border-radius: 0 6px 6px 0;
}

.markdown-prose blockquote p {
  margin: 0;
}

.markdown-prose img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin: 1.25rem 0 2rem;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.markdown-prose pre {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.15rem 1.35rem;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-primary);
  margin: 1.25rem 0;
}

.markdown-prose .mermaid {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
  overflow-x: auto;
}

.markdown-prose strong {
  color: var(--text-primary);
}

.markdown-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0 0;
  font-size: 0.92rem;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
}

.markdown-prose th {
  background: var(--bg-alt);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.markdown-prose td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.manifesto-box {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.25rem;
}

/* Infographics */
.infographics-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.infographic-panel {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
}

.figure-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-blue);
}

.infographic-panel-header h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0.25rem 0;
}

.infographic-sub {
  margin: 0 0 1.25rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.infographic-visual-wrapper {
  margin-bottom: 1rem;
}

.enterprise-svg {
  width: 100%;
  max-width: 820px;
  height: auto;
  display: block;
}

.infographic-body p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Thought Leadership & Case Study Cards */
.articles-grid, .cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.article-card, .case-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card-highlight {
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-color: #bfdbfe;
  border-top: 3px solid var(--accent-blue);
}

.article-meta-top, .case-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
}

.category-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-blue);
}

.metric-chip {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue);
  background: var(--accent-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.article-card h3, .article-card h2, .case-card h3, .case-card h2 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 500;
  line-height: 1.3;
  margin: 0 0 0.75rem;
}

.article-card h3 a, .article-card h2 a, .case-card h3 a, .case-card h2 a {
  color: var(--text-primary);
}

.article-card h3 a:hover, .article-card h2 a:hover, .case-card h3 a:hover, .case-card h2 a:hover {
  color: var(--accent-blue);
}

.article-excerpt, .case-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0 0 1.5rem;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.article-author {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
}

.article-author strong {
  color: var(--text-primary);
}

.article-author span {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.case-highlight-row {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--accent-soft);
  border-radius: 6px;
  margin-bottom: 1.15rem;
}

.case-big-metric {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent-blue);
  line-height: 1;
}

.case-big-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.case-client-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

/* Team Preview Grid */
.team-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.exec-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.exec-photo-wrap {
  aspect-ratio: 4 / 4.2;
  background: var(--bg-alt);
  overflow: hidden;
}

.exec-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.exec-card-body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.exec-card-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.2rem;
}

.exec-role {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin: 0 0 0.35rem;
}

.exec-creds {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
  flex: 1;
}

/* Inner Pages */
.page-hero {
  padding: 4rem 0 3rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border-color);
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.2vw, 2.85rem);
  font-weight: 500;
  line-height: 1.18;
  color: var(--text-primary);
  margin: 0.5rem 0 0.75rem;
  max-width: 860px;
}

.page-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0;
}

.intro-prose {
  max-width: 820px;
  margin-bottom: 3rem;
}

.team-full-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.exec-dossier-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2.25rem;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  align-items: start;
}

.dossier-photo {
  width: 100%;
  aspect-ratio: 1 / 1.08;
  object-fit: cover;
  border-radius: 6px;
  display: block;
}

.dossier-content-col h2 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 0.2rem;
}

.dossier-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin: 0 0 0.25rem;
}

.dossier-creds {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}

.dossier-quote {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1.25rem;
  background: var(--bg-alt);
  border-left: 3px solid var(--accent-blue);
  font-style: italic;
  color: var(--text-primary);
}

.competency-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.comp-pill {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.7rem;
  border-radius: 4px;
}

/* Reader Layout */
.breadcrumb-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.monograph-byline-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.meta-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.case-hero-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.case-hero-kpi {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  padding: 1.15rem;
  border-radius: 6px;
}

.kpi-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--accent-blue);
}

.kpi-lbl {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.monograph-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}

.sidebar-box {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
}

.sidebar-big-stat {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin: 0.25rem 0;
}

.sidebar-box hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.25rem 0;
}

.sidebar-box h4 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
}

.sidebar-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-links li {
  margin-bottom: 0.65rem;
  font-size: 0.88rem;
}

/* Footer */
.site-footer {
  background: var(--bg-alt);
  padding: 4rem 0 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-color);
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0.85rem 0;
  max-width: 340px;
}

.footer-locations {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.footer-col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin: 0 0 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.55rem;
  font-size: 0.88rem;
}

.footer-col a {
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  padding-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 980px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .monograph-layout, .exec-dossier-card {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .main-nav {
    display: none;
  }
  .pillars-grid, .articles-grid, .cases-grid, .team-preview-grid, .metrics-grid, .case-hero-kpis, .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-header-split {
    flex-direction: column;
    align-items: flex-start;
  }
}