:root {
  --ink: #1f2b24;
  --muted: #56645d;
  --paper: #f5f7f4;
  --surface: #ffffff;
  --line: #d9e0dc;
  --green: #006b5a;
  --green-dark: #06483f;
  --gold: #f2c14e;
  --copper: #b4511d;
  --blue: #4962a3;
  --shadow: 0 18px 50px rgba(31, 43, 36, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.skip-link {
  background: var(--ink);
  color: var(--surface);
  left: 1rem;
  padding: 0.5rem 0.75rem;
  position: fixed;
  top: -4rem;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  align-items: center;
  background: rgba(245, 247, 244, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  min-height: 72px;
  padding: 0.75rem clamp(1rem, 4vw, 4rem);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 0.75rem;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--ink);
  border-radius: 8px;
  color: var(--gold);
  display: inline-flex;
  flex: 0 0 44px;
  font-weight: 700;
  height: 44px;
  justify-content: center;
  width: 44px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.8rem;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 0.35rem;
}

.site-nav a {
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.94rem;
  padding: 0.5rem 0.7rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: #e8eee9;
  color: var(--ink);
}

.language-link {
  border: 1px solid var(--line);
}

.nav-toggle {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  display: none;
  font-size: 1.3rem;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.hero {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(245, 247, 244, 0.97) 0%, rgba(245, 247, 244, 0.86) 50%, rgba(245, 247, 244, 0.44) 100%),
    url("nac-control-plane.png");
  background-position: center;
  background-size: cover;
  display: flex;
  min-height: 72vh;
  padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 5rem);
}

.hero-content {
  max-width: 780px;
}

.eyebrow,
.section-kicker {
  color: var(--copper);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  font-size: 4rem;
  line-height: 1;
  margin: 0 0 1rem;
}

h2 {
  font-size: 2.15rem;
  line-height: 1.12;
  margin: 0;
}

h3 {
  font-size: 1.1rem;
  line-height: 1.2;
  margin: 0 0 0.65rem;
}

.lead {
  color: #314139;
  font-size: 1.22rem;
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0;
}

.button {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  min-height: 46px;
  padding: 0.72rem 1rem;
  text-decoration: none;
}

.button.primary {
  background: var(--green);
  color: var(--surface);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--green-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  color: var(--ink);
}

.hero-facts {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  max-width: 720px;
}

.hero-facts div {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem;
}

.hero-facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 0.25rem;
}

.hero-facts dd {
  font-weight: 700;
  margin: 0;
}

.band,
.section,
.cta-band,
.legal-page {
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 5vw, 5rem);
}

.band {
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.content-grid.two {
  align-items: start;
  display: grid;
  gap: clamp(1.5rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  margin: 0 auto;
  max-width: 1180px;
}

.content-grid p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0;
}

.section-heading {
  margin: 0 auto 2rem;
  max-width: 1180px;
}

.card-grid,
.artifact-layout,
.governance-list {
  display: grid;
  gap: 1rem;
  margin: 0 auto;
  max-width: 1180px;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.artifact-layout article,
.governance-list div,
.legal-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem;
}

.card {
  box-shadow: var(--shadow);
}

.card-number {
  color: var(--blue);
  display: inline-block;
  font-weight: 700;
  margin-bottom: 2rem;
}

.card p,
.artifact-layout p,
.governance-list p,
.legal-page p {
  color: var(--muted);
  margin: 0;
}

.governance-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.artifact-layout {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.artifact-layout article {
  border-left: 6px solid var(--gold);
}

.artifact-layout article:nth-child(2) {
  border-left-color: var(--green);
}

.artifact-layout article:nth-child(3) {
  border-left-color: var(--blue);
}

.cta-band {
  align-items: center;
  background: var(--ink);
  color: var(--surface);
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
}

.cta-band .section-kicker {
  color: var(--gold);
}

.cta-band h2 {
  max-width: 720px;
}

.site-footer {
  align-items: center;
  background: #172019;
  color: #e8eee9;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1.2rem clamp(1rem, 4vw, 4rem);
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.site-footer a {
  color: #e8eee9;
}

.legal-page {
  margin: 0 auto;
  max-width: 900px;
}

.legal-page h1 {
  font-size: 2.7rem;
}

.legal-page h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.legal-box {
  margin: 1rem 0;
}

.text-link {
  color: var(--green);
  font-weight: 700;
}

.not-found {
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  padding: clamp(2rem, 8vw, 6rem);
}

.not-found h1 {
  font-size: 3rem;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    left: 0;
    padding: 0.75rem 1rem 1rem;
    position: absolute;
    right: 0;
    top: 72px;
  }

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

  .site-nav a {
    width: 100%;
  }

  .hero {
    background:
      linear-gradient(180deg, rgba(245, 247, 244, 0.98) 0%, rgba(245, 247, 244, 0.89) 62%, rgba(245, 247, 244, 0.66) 100%),
      url("nac-control-plane.png");
    background-position: center;
    min-height: 70vh;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .hero-facts,
  .content-grid.two,
  .card-grid,
  .governance-list,
  .artifact-layout {
    grid-template-columns: 1fr;
  }

  .cta-band,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .brand small {
    display: none;
  }

  h1 {
    font-size: 2.35rem;
  }

  .lead {
    font-size: 1.05rem;
  }

  .button {
    width: 100%;
  }
}