:root {
  --ink: #1A1A1A;
  --charcoal: #4A4948;
  --stone: #8B8985;
  --paper: #FAFAF7;
  --surface: #FFFFFF;
  --cream: #F4F2EC;
  --hairline: rgba(26, 26, 26, 0.08);
  --hairline-strong: rgba(26, 26, 26, 0.16);
  --hairline-soft: rgba(26, 26, 26, 0.04);
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.serif { font-family: var(--font-serif); }
.kicker { font-size: 11px; letter-spacing: 0.22em; color: var(--stone); text-transform: uppercase; font-weight: 500; font-family: var(--font-sans); }
.micro { font-size: 11px; letter-spacing: 0.16em; color: var(--stone); text-transform: uppercase; font-weight: 500; font-family: var(--font-sans); }
.num { font-family: var(--font-serif); font-size: 11px; color: var(--stone); letter-spacing: 0.1em; }
.hairline { height: 0.5px; background: var(--hairline); border: 0; margin: 0; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 80px; }

.crumb { font-size: 11px; color: var(--stone); letter-spacing: 0.08em; }
.crumb a { color: var(--stone); text-decoration: none; transition: color 0.2s; }
.crumb a:hover { color: var(--ink); }
.crumb-sep { margin: 0 8px; color: var(--hairline-strong); }
.crumb-current { color: var(--ink); }

.cta-link { font-size: 12px; color: var(--ink); border-bottom: 1px solid var(--ink); padding-bottom: 3px; font-weight: 500; letter-spacing: 0.06em; transition: opacity 0.2s; display: inline-block; text-decoration: none; }
.cta-link:hover { opacity: 0.65; }
.cta-soft { font-size: 12px; color: var(--charcoal); letter-spacing: 0.06em; transition: color 0.2s; text-decoration: none; }
.cta-soft:hover { color: var(--ink); }

.site-nav { padding: 22px 0; display: flex; align-items: center; justify-content: space-between; border-bottom: 0.5px solid var(--hairline); background: var(--paper); }
.site-nav .wordmark { font-family: var(--font-serif); font-size: 13px; letter-spacing: 0.04em; color: var(--ink); font-weight: 500; text-decoration: none; }
.site-nav .links { display: flex; gap: 28px; }
.site-nav .links a { font-size: 11px; color: var(--stone); letter-spacing: 0.06em; padding-bottom: 2px; transition: color 0.2s; text-decoration: none; }
.site-nav .links a:hover { color: var(--ink); }
.site-nav .links a.active { color: var(--ink); border-bottom: 0.5px solid var(--ink); }

.crumb-bar { background: var(--paper); padding: 16px 0; border-bottom: 0.5px solid var(--hairline); }

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 400; color: var(--ink); margin: 0; }
h1.display { font-size: 60px; line-height: 1.02; letter-spacing: -0.025em; }
h1.page-title { font-size: 44px; line-height: 1.08; letter-spacing: -0.02em; }
h2.section { font-size: 28px; line-height: 1.25; letter-spacing: -0.01em; }
h2.article { font-size: 24px; line-height: 1.3; letter-spacing: -0.01em; margin: 48px 0 6px; }
h3.entry { font-size: 22px; line-height: 1.3; letter-spacing: -0.01em; margin: 0 0 16px; }
h3.discipline { font-size: 18px; line-height: 1.25; margin: 0 0 8px; }

.dek { font-family: var(--font-serif); font-size: 19px; line-height: 1.55; color: var(--charcoal); font-style: italic; }
.body-text { font-family: var(--font-serif); font-size: 16px; line-height: 1.8; color: var(--charcoal); margin: 0 0 18px; }
.body-text-primary { font-family: var(--font-serif); font-size: 16px; line-height: 1.8; color: var(--ink); margin: 0 0 18px; }
.body-text strong, .body-text-primary strong { color: var(--ink); font-weight: 500; }

.stat-num { font-family: var(--font-serif); font-size: 38px; font-weight: 400; color: var(--ink); line-height: 1; letter-spacing: -0.01em; }
.stat-label { font-size: 11px; letter-spacing: 0.16em; color: var(--stone); text-transform: uppercase; margin-top: 10px; line-height: 1.4; font-weight: 500; }

.pull-quote { margin: 40px 0; padding: 24px 32px; border-left: 2px solid var(--ink); background: var(--cream); }
.pull-quote p { font-family: var(--font-serif); font-size: 22px; line-height: 1.4; color: var(--ink); margin: 0; font-style: italic; font-weight: 400; letter-spacing: -0.005em; }
.pull-quote .attr { font-size: 11px; letter-spacing: 0.16em; color: var(--stone); text-transform: uppercase; font-weight: 500; margin-top: 16px; }

.dropcap { float: left; font-family: var(--font-serif); font-size: 56px; line-height: 0.85; font-weight: 400; padding: 4px 8px 0 0; color: var(--ink); }

.card { background: var(--surface); border: 0.5px solid var(--hairline); border-radius: 12px; padding: 32px; }
.card-sunk { background: var(--cream); border-radius: 12px; padding: 28px 32px; }

.section-num-block { display: grid; grid-template-columns: 110px 1fr; gap: 36px; align-items: start; }

.disciplines { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 0.5px solid var(--hairline); }
.disciplines > div { padding: 28px 24px; border-bottom: 0.5px solid var(--hairline); }
.disciplines > div:nth-child(odd) { border-right: 0.5px solid var(--hairline); padding-left: 0; }
.disciplines > div:nth-child(even) { padding-right: 0; }
.disciplines > div:nth-last-child(-n+2) { border-bottom: 0; }
.disciplines p { font-size: 13px; line-height: 1.6; color: var(--stone); margin: 0; }

.compare-table { display: grid; grid-template-columns: 200px 1fr 1fr 1fr; border-top: 0.5px solid var(--hairline); }
.compare-table > div { padding: 18px 16px; border-bottom: 0.5px solid var(--hairline); border-left: 0.5px solid var(--hairline); }
.compare-table > div:nth-child(4n+1) { border-left: 0; padding-left: 0; padding-right: 16px; }
.compare-table .compare-header { background: var(--paper); }
.compare-table .compare-cell-text { font-size: 13px; line-height: 1.6; color: var(--charcoal); }
.compare-table .compare-cell-data { font-family: var(--font-serif); font-size: 13px; color: var(--ink); }

.faq-tabs { display: flex; gap: 28px; padding-bottom: 16px; border-bottom: 0.5px solid var(--hairline); margin-bottom: 32px; flex-wrap: wrap; }
.faq-tab { padding: 8px 0; font-size: 12px; color: var(--stone); cursor: pointer; transition: color 0.2s; display: flex; gap: 10px; align-items: baseline; background: transparent; border: 0; font-family: var(--font-sans); letter-spacing: 0.04em; }
.faq-tab:hover { color: var(--ink); }
.faq-tab.active { color: var(--ink); font-weight: 500; }
.faq-entry { padding-bottom: 36px; margin-bottom: 36px; border-bottom: 0.5px solid var(--hairline); }
.faq-entry:last-child { border-bottom: 0; }
.faq-entry .meta { display: flex; gap: 14px; align-items: baseline; margin-bottom: 14px; }
.faq-entry .meta .qa-num { font-family: var(--font-serif); font-size: 13px; color: var(--stone); letter-spacing: 0.06em; }
.faq-entry p { font-size: 15px; line-height: 1.75; color: var(--charcoal); margin: 0 0 14px; font-family: var(--font-sans); }
.faq-entry p:last-child { margin-bottom: 0; }
.faq-entry.hidden { display: none; }

.site-footer { padding: 48px 0 36px; background: var(--paper); border-top: 0.5px solid var(--hairline); }
.site-footer .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
.site-footer h4 { font-size: 11px; letter-spacing: 0.16em; color: var(--stone); text-transform: uppercase; font-weight: 500; margin: 0 0 14px; font-family: var(--font-sans); }
.site-footer .links-col { font-size: 12px; line-height: 2; }
.site-footer .links-col a { color: var(--charcoal); text-decoration: none; display: block; transition: color 0.2s; }
.site-footer .links-col a:hover { color: var(--ink); }
.site-footer .footer-bottom { border-top: 0.5px solid var(--hairline); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--stone); }
.site-footer .footer-tagline { font-family: var(--font-serif); font-size: 13px; font-weight: 500; margin-bottom: 10px; }
.site-footer .footer-blurb { font-size: 12px; line-height: 1.6; color: var(--stone); margin: 0; max-width: 240px; }

@media (max-width: 1024px) {
  .container { padding: 0 36px; }
}
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  h1.display { font-size: 44px; }
  h1.page-title { font-size: 34px; }
  .site-nav .links { display: none; }
  .section-num-block { grid-template-columns: 1fr; gap: 16px; }
  .disciplines, .site-footer .footer-grid { grid-template-columns: 1fr; }
  .disciplines > div { border-right: 0 !important; padding: 22px 0 !important; }
  .compare-table { grid-template-columns: 1fr; }
  .compare-table > div { border-left: 0 !important; padding-left: 0 !important; }
}