:root {
  --bg: #fafaf8;
  --bg-elevated: #f4f4f0;
  --bg-surface: #eeede8;
  --text-primary: #1a1a18;
  --text-secondary: #5a5a54;
  --text-tertiary: #9a9a92;
  --accent: #8b5e2a;
  --accent-dim: #b8883a;
  --border: rgba(26, 26, 24, 0.1);
  --border-strong: rgba(26, 26, 24, 0.2);
  --danger: #c4574a;
  --success: #4a7a5c;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Crimson Pro', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --max-width: 1180px;
  --content-width: 720px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent); }

.nav {
  position: sticky;
  top: 0;
  background: rgba(250, 250, 248, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14px;
  color: var(--text-secondary);
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
.content-container { max-width: var(--content-width); margin: 0 auto; padding: 0 32px; }

.hero { padding: 140px 0 100px; border-bottom: 1px solid var(--border); }

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  font-weight: 500;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 64px;
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -0.02em;
  max-width: 900px;
  margin-bottom: 32px;
}

.hero-title em { font-style: italic; color: var(--accent); }

.hero-subtitle {
  font-size: 20px;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 48px;
  font-weight: 300;
}

.hero-meta { display: flex; gap: 48px; font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.04em; text-transform: uppercase; }

.hero-meta-item strong {
  display: block;
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 500;
  font-family: var(--font-serif);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 4px;
}

.section { padding: 100px 0; border-bottom: 1px solid var(--border); }

.section-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 24px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 42px;
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.015em;
  max-width: 760px;
  margin-bottom: 32px;
}

.section-lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 64px;
  font-weight: 300;
}

.studies-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.study-card {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background 0.3s ease;
  position: relative;
  overflow: hidden;
}

.study-card:hover { background: var(--bg-elevated); }

.study-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  filter: grayscale(20%);
}

.study-card-body { padding: 40px 48px 48px; }

.study-card-meta {
  display: flex;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

.study-card-sector { color: var(--accent); }

.study-card-title {
  font-family: var(--font-serif);
  font-size: 26px;
  line-height: 1.2;
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.study-card-excerpt {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
  font-weight: 300;
}

.study-card-arrow {
  margin-top: 32px;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.study-card-arrow::after { content: ""; transition: transform 0.2s ease; }
.study-card:hover .study-card-arrow::after { transform: translateX(4px); }

.thesis-block { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }

.thesis-text p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-weight: 300;
}

.thesis-text p:first-child { font-size: 20px; color: var(--text-primary); font-weight: 400; }
.thesis-text strong { color: var(--text-primary); font-weight: 500; }

.thesis-aside { border-left: 2px solid var(--accent); padding-left: 32px; padding-top: 8px; }

.thesis-aside h3 {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 500;
}

.thesis-aside ul { list-style: none; }

.thesis-aside li {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-weight: 300;
}

.thesis-aside li:last-child { border-bottom: none; }

.sectors-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.sector-card {
  border: 1px solid var(--border);
  padding: 40px 32px;
  background: var(--bg-elevated);
  transition: border-color 0.3s ease;
}

.sector-card:hover { border-color: var(--border-strong); }

.sector-card-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.sector-card h3 { font-family: var(--font-serif); font-size: 22px; font-weight: 500; margin-bottom: 16px; letter-spacing: -0.01em; }
.sector-card p { font-size: 14px; line-height: 1.65; color: var(--text-secondary); font-weight: 300; }

.cta-block { text-align: center; padding: 100px 0; border-bottom: 1px solid var(--border); }

.cta-title {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.015em;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.cta-text {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 300;
}

.cta-form { display: flex; gap: 8px; max-width: 460px; margin: 0 auto; }

.cta-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 14px 18px;
  font-size: 14px;
  font-family: inherit;
  border-radius: 2px;
}

.cta-input:focus { outline: none; border-color: var(--accent); }

.cta-button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 28px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 0.02em;
  transition: background 0.2s ease;
}

.cta-button:hover { background: var(--text-primary); }

.footer { padding: 60px 0 40px; font-size: 13px; color: var(--text-tertiary); border-top: 1px solid var(--border); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; }

.article { padding: 0 0 120px; }

.article-hero-image {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
  filter: grayscale(15%);
  margin-bottom: 0;
}

.article-header { margin-bottom: 64px; padding: 64px 0 48px; border-bottom: 1px solid var(--border); }

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 32px;
}

.article-meta span { color: var(--accent); }

.article-title {
  font-family: var(--font-serif);
  font-size: 52px;
  line-height: 1.1;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.article-deck {
  font-size: 21px;
  line-height: 1.5;
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 640px;
}

.article-body { font-size: 18px; line-height: 1.75; padding-top: 56px; }

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  margin: 72px 0 24px;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.article-body h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  margin: 52px 0 20px;
  letter-spacing: -0.01em;
}

.article-body p { margin-bottom: 28px; color: var(--text-primary); }

.article-body p.lead {
  font-size: 22px;
  line-height: 1.55;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 40px;
  font-family: var(--font-serif);
  font-style: italic;
}

.article-body strong { color: var(--text-primary); font-weight: 500; }
.article-body em { font-style: italic; color: var(--text-secondary); }

.article-body blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 32px;
  margin: 48px 0;
  font-family: var(--font-serif);
  font-size: 24px;
  font-style: italic;
  line-height: 1.4;
  color: var(--text-primary);
}

.article-body ul, .article-body ol { margin-bottom: 28px; padding-left: 24px; }
.article-body li { margin-bottom: 12px; color: var(--text-secondary); }
.article-body li strong { color: var(--text-primary); }

.callout {
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  padding: 40px;
  margin: 56px 0;
}

.callout-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 500;
}

.callout-text {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.45;
  font-style: italic;
  color: var(--text-primary);
}

.chart-container {
  margin: 56px 0;
  padding: 48px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.chart-title { font-family: var(--font-serif); font-size: 20px; font-weight: 500; margin-bottom: 8px; }
.chart-subtitle { font-size: 13px; color: var(--text-tertiary); margin-bottom: 32px; letter-spacing: 0.02em; }
.bar-chart { display: flex; flex-direction: column; gap: 16px; }

.bar-row {
  display: grid;
  grid-template-columns: 200px 1fr 80px;
  gap: 24px;
  align-items: center;
  font-size: 14px;
}

.bar-label { color: var(--text-secondary); }
.bar-track { height: 28px; background: var(--bg-surface); position: relative; }
.bar-fill { height: 100%; background: var(--accent); }
.bar-fill.dim { background: var(--accent-dim); opacity: 0.5; }
.bar-fill.danger { background: var(--danger); }
.bar-value { font-family: var(--font-mono); font-size: 13px; color: var(--text-primary); text-align: right; }

.data-table { width: 100%; margin: 48px 0; border-collapse: collapse; font-size: 14px; }

.data-table th {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-strong);
  font-weight: 500;
}

.data-table td {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.data-table td:first-child { color: var(--text-primary); }

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin: 48px 0;
}

.stat-cell { background: var(--bg-elevated); padding: 32px; }

.stat-value {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.stat-label { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

@media (max-width: 900px) {
  .hero-title { font-size: 40px; }
  .hero-subtitle { font-size: 17px; }
  .section-title { font-size: 30px; }
  .studies-grid { grid-template-columns: 1fr; }
  .thesis-block { grid-template-columns: 1fr; gap: 48px; }
  .sectors-grid { grid-template-columns: 1fr; }
  .article-title { font-size: 34px; }
  .article-body { font-size: 17px; }
  .article-body h2 { font-size: 26px; }
  .nav-links { gap: 20px; font-size: 13px; }
  .stats-row { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 120px 1fr 60px; gap: 12px; font-size: 12px; }
  .hero-meta { flex-direction: column; gap: 24px; }
  .article-hero-image { height: 240px; }
}

.logo-link { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: 36px; width: auto; display: block; }
.footer-meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; color: var(--text-tertiary); line-height: 1.8; text-align: right; }