:root {
  --navy: #10283a;
  --midnight: #081722;
  --brown: #765437;
  --walnut: #463020;
  --limestone: #e6dfd2;
  --paper: #f7f3eb;
  --graphite: #2a2d2f;
  --slate: #6c7477;
  --steel: #46677a;
  --copper: #9b673b;
  --line: #cfc3b2;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--graphite);
  background: var(--paper);
  line-height: 1.62;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

.shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: #fff;
  color: #000;
  padding: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 243, 235, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: inherit;
  display: flex;
  gap: 12px;
  align-items: center;
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.site-nav a {
  color: var(--slate);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--navy);
}

.nav-cta {
  color: var(--navy) !important;
  border: 1px solid var(--brown);
  border-radius: 4px;
  padding: 9px 14px;
}

.nav-toggle {
  display: none;
}

.hero {
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  gap: 46px;
  align-items: start;
  grid-template-columns: 1.1fr 0.9fr;
  padding: 92px 0;
}

.eyebrow {
  color: var(--brown);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--walnut);
}

.hero h1,
.section h2,
.cta h2 {
  margin: 0.24em 0;
  color: var(--navy);
  line-height: 1.04;
  letter-spacing: 0;
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: clamp(2.2rem, 4.9vw, 4.2rem);
}

.brand-descriptor {
  margin-top: 0;
  color: var(--brown);
  font-size: 0.95rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-lede {
  color: var(--graphite);
  max-width: 64ch;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 18px;
}

.button-primary {
  color: #ffffff;
  background: var(--navy);
}

.button-secondary {
  color: var(--navy);
  border: 1px solid var(--brown);
}

.button-dark {
  color: #ffffff;
  background: var(--midnight);
}

.hero-note {
  color: var(--steel);
  font-size: 0.9rem;
}

.evidence-panel {
  border: 1px solid var(--line);
  background: var(--limestone);
  padding: 28px;
}

.evidence-panel h2 {
  margin: 0 0 12px;
  color: var(--navy);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  font-size: 1.12rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.evidence-panel ul {
  margin: 0;
  padding-left: 1.2rem;
}

.evidence-panel li {
  margin-bottom: 0.65rem;
  color: #293037;
}

.section {
  padding: 96px 0;
  border-bottom: 1px solid var(--line);
}

.section-light {
  color: var(--graphite);
  background: #fbfaf7;
}

.split {
  display: grid;
  gap: 56px;
  align-items: start;
  grid-template-columns: 0.95fr 1.05fr;
}

.section-heading h2 {
  font-size: clamp(1.9rem, 4.2vw, 3.2rem);
}

.section-heading p {
  max-width: 68ch;
}

.statement p {
  margin: 0 0 18px;
  color: var(--graphite);
  font-size: 1.02rem;
}

.statement ul {
  margin: 0;
  padding-left: 1.2rem;
}

.cards {
  display: grid;
  gap: 20px;
}

.capability-grid {
  margin-top: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid #20394b;
  background: var(--navy);
  color: #f2eee6;
  padding: 30px;
}

.card-index {
  color: #d2e0e8;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.card h3 {
  margin: 0.58em 0 0.44em;
  color: #f6f3ed;
  line-height: 1.26;
  font-size: 1.32rem;
  font-family: "IBM Plex Serif", Georgia, serif;
}

.card p {
  color: #e4ded3;
}

.card ul {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
  color: #f6f3ed;
}

.card li {
  margin-bottom: 0.36rem;
}

.industries {
  background: var(--limestone);
}

.thesis {
  background: #f3efe7;
}

.thesis-grid {
  display: grid;
  gap: 24px;
}

.thesis blockquote {
  margin: 0;
  max-width: 48ch;
  line-height: 1.38;
  letter-spacing: 0;
  color: var(--navy);
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.engagement-grid {
  display: grid;
  gap: 26px;
  align-items: start;
  grid-template-columns: 1fr 0.95fr;
}

.engagement-panel {
  background: #ffffff;
  border: 1px solid var(--line);
  padding: 28px;
}

.panel-label {
  color: var(--brown);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.engagement-panel li {
  margin: 0 0 10px;
  color: var(--graphite);
}

.engagement-panel p {
  color: var(--graphite);
}

.cta-section {
  background: var(--midnight);
  border-bottom: 0;
}

.cta {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}

.cta .eyebrow,
.cta h2 {
  color: var(--paper);
}

.cta .button-primary {
  background: var(--paper);
  color: var(--navy);
}

.site-footer {
  padding: 34px 0;
  color: #ddd6ca;
  background: var(--navy);
}

.footer-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1040px) {
  .site-nav {
    gap: 14px;
  }

  .site-nav a {
    font-size: 0.82rem;
  }
}

@media (max-width: 980px) {
  .site-nav {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    display: none;
    gap: 14px;
    align-items: flex-start;
    flex-direction: column;
    border: 1px solid var(--line);
    background: #fbf9f3;
    padding: 20px;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    color: var(--slate);
    border-radius: 4px;
    border: 1px solid var(--line);
    background: none;
    padding: 10px 14px;
  }

  .hero-grid,
  .split,
  .engagement-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding: 78px 0;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(calc(100% - 28px), var(--max));
  }

  .hero h1,
  .section h2,
  .cta h2 {
    line-height: 1.08;
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}