@import url("https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;500;600;700;800;900&family=Source+Serif+4:opsz,wght@8..60,600;8..60,700&display=swap");

:root {
  --forest: #10251b;
  --canopy: #173526;
  --moss: #284c38;
  --paper: #fffaf1;
  --ivory: #f4efe5;
  --ivory-deep: #f7f0e2;
  --brass: #c8a45d;
  --clay: #c27a55;
  --ink: #172119;
  --muted: #5f6b61;
  --line: rgba(16, 37, 27, 0.18);
  --line-light: rgba(255, 250, 241, 0.2);
  --shadow: 0 22px 70px rgba(16, 37, 27, 0.14);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: "Source Sans 3", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.58;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--clay);
}

:focus-visible {
  outline: 3px solid var(--brass);
  outline-offset: 4px;
}

.skip-link {
  background: var(--brass);
  color: var(--forest);
  font-weight: 900;
  left: 1rem;
  padding: 0.55rem 0.85rem;
  position: fixed;
  top: 1rem;
  transform: translateY(-140%);
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  background: rgba(244, 239, 229, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.nav-shell {
  align-items: center;
  display: flex;
  gap: 1.25rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  min-height: 76px;
  padding: 0 1.25rem;
}

.brand {
  color: var(--forest);
  display: inline-flex;
  flex-direction: column;
  font-weight: 900;
  line-height: 1.05;
  text-decoration: none;
}

.brand span {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  margin-top: 0.18rem;
  text-transform: uppercase;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 1rem;
}

.site-nav a {
  border-bottom: 2px solid transparent;
  color: var(--forest);
  font-size: 0.94rem;
  font-weight: 800;
  min-height: 44px;
  padding: 0.48rem 0;
  text-decoration: none;
}

.site-nav a:hover {
  border-bottom-color: var(--brass);
  color: var(--forest);
}

.nav-cta,
.button {
  align-items: center;
  background: var(--forest);
  border: 1px solid var(--forest);
  border-radius: 6px;
  color: var(--paper);
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  line-height: 1.15;
  min-height: 48px;
  padding: 0.72rem 1.05rem;
  text-align: center;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.nav-cta:hover,
.button:hover {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--paper);
  transform: translateY(-1px);
}

.button.secondary {
  background: transparent;
  border-color: rgba(255, 250, 241, 0.5);
  color: var(--paper);
}

.button.secondary:hover,
.button.light {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--forest);
}

.button.light:hover {
  background: var(--brass);
  border-color: var(--brass);
  color: var(--forest);
}

.section,
.hero {
  padding: 4.2rem 1.25rem;
}

.section.alt {
  background: linear-gradient(180deg, var(--paper), var(--ivory-deep));
}

.section.dark {
  background: var(--forest);
  color: var(--paper);
}

.section-inner,
.hero-grid,
.contact-strip-inner,
.footer-inner {
  margin: 0 auto;
  max-width: var(--max);
  min-width: 0;
}

.hero {
  background: linear-gradient(135deg, var(--forest), var(--canopy) 58%, var(--moss));
  color: var(--paper);
  overflow: hidden;
  position: relative;
}

.hero::after {
  background: linear-gradient(90deg, rgba(200, 164, 93, 0.28), transparent);
  content: "";
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 7px;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 2.25rem;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
}

.eyebrow {
  color: var(--brass);
  display: inline-block;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.28;
  margin: 0 0 1rem;
  text-transform: uppercase;
}

.section:not(.dark) .eyebrow {
  color: #72571f;
}

h1,
h2,
h3 {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
  margin: 0;
  text-wrap: balance;
}

h1 {
  color: var(--paper);
  font-size: clamp(3.3rem, 7.5vw, 6.4rem);
  max-width: 11ch;
}

h2 {
  color: var(--forest);
  font-size: clamp(2.05rem, 3.6vw, 3.35rem);
  margin-bottom: 1rem;
  max-width: 15ch;
}

.dark h2,
.dark h3 {
  color: var(--paper);
}

h3 {
  color: var(--forest);
  font-size: clamp(1.26rem, 1.7vw, 1.65rem);
  margin-bottom: 0.65rem;
}

p {
  margin: 0 0 1rem;
}

.lede {
  font-size: clamp(1.2rem, 1.8vw, 1.48rem);
  line-height: 1.45;
  max-width: 62ch;
}

.hero-copy > p:not(.eyebrow) {
  color: rgba(255, 250, 241, 0.86);
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.65rem;
}

.hero-panel {
  display: grid;
  gap: 1rem;
}

.mandate-card {
  background: rgba(255, 250, 241, 0.08);
  border: 1px solid var(--line-light);
  border-top: 4px solid var(--brass);
  border-radius: var(--radius);
  padding: 1.2rem;
}

.mandate-card span,
.format-card span,
.module-list span,
.simulation-table span,
.tag {
  color: var(--clay);
  display: block;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 0.55rem;
  text-transform: uppercase;
}

.dark .simulation-table span,
.dark .mandate-card span {
  color: var(--brass);
}

.mandate-card strong {
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2rem;
  line-height: 1.1;
  margin-bottom: 0.7rem;
}

.mandate-card p {
  color: rgba(255, 250, 241, 0.76);
}

.stat-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-grid div {
  background: rgba(255, 250, 241, 0.08);
  border: 1px solid var(--line-light);
  padding: 1rem;
}

.stat-grid b {
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.5rem;
  line-height: 1;
}

.stat-grid span {
  color: rgba(255, 250, 241, 0.72);
  display: block;
  font-size: 0.86rem;
  font-weight: 800;
  margin-top: 0.4rem;
  text-transform: uppercase;
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.8fr);
  margin-bottom: 1.6rem;
}

.section-heading > p {
  color: var(--muted);
}

.dark .section-heading > p {
  color: rgba(255, 250, 241, 0.72);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.format-card,
.rhythm-card,
.module-list article,
.simulation-table article,
.bridge-grid article {
  background: linear-gradient(180deg, rgba(255, 250, 241, 0.98), rgba(244, 239, 229, 0.84));
  border: 1px solid var(--line);
  border-top: 4px solid var(--brass);
  border-radius: var(--radius);
  padding: 1.15rem;
}

.card p,
.format-card p,
.module-list p,
.bridge-grid p,
.rhythm-card li {
  color: var(--muted);
}

.bridge-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.bridge-grid article {
  min-height: 100%;
}

.bridge-grid b {
  color: var(--forest);
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
  margin-bottom: 0.7rem;
}

.bridge-grid span {
  color: var(--forest);
  display: block;
  font-weight: 900;
  line-height: 1.18;
  margin-bottom: 0.55rem;
}

.architecture-layout,
.outcome-layout,
.proof-layout {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  margin-bottom: 1.4rem;
}

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

.module-list {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.module-list article strong {
  color: var(--forest);
  display: block;
  font-weight: 900;
  margin-top: 0.8rem;
}

.simulation-table {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.simulation-table article {
  background: rgba(255, 250, 241, 0.08);
  border-color: var(--line-light);
}

.simulation-table p {
  color: rgba(255, 250, 241, 0.72);
}

.format-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.24fr 0.88fr 0.88fr;
}

.format-card.primary {
  background: linear-gradient(135deg, var(--forest), var(--moss));
  color: var(--paper);
}

.format-card.primary h3 {
  color: var(--paper);
}

.format-card.primary p {
  color: rgba(255, 250, 241, 0.78);
}

.text-link {
  color: var(--forest);
  display: inline-flex;
  font-weight: 900;
  margin-top: 0.6rem;
}

.outcome-list {
  counter-reset: outcome;
  display: grid;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.outcome-list li {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  counter-increment: outcome;
  font-weight: 900;
  padding: 0.8rem 0.9rem;
}

.outcome-list li::before {
  color: var(--clay);
  content: counter(outcome, decimal-leading-zero) " ";
  font-weight: 900;
}

.logo-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.logo-grid img {
  background: var(--paper);
  border: 1px solid var(--line);
  height: 74px;
  object-fit: contain;
  padding: 0.9rem;
  width: 100%;
}

.contact-strip {
  background: var(--forest);
  color: var(--paper);
  padding: 3.2rem 1.25rem;
}

.contact-strip-inner {
  align-items: center;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.contact-strip h2 {
  color: var(--paper);
  max-width: 18ch;
}

.contact-strip p:not(.eyebrow) {
  color: rgba(255, 250, 241, 0.76);
  max-width: 68ch;
}

.site-footer {
  background: #0b1a13;
  color: rgba(255, 250, 241, 0.74);
  padding: 1.5rem 1.25rem;
}

.footer-inner {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 1080px) {
  .bridge-grid,
  .grid.four {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 820px) {
  body {
    font-size: 17px;
  }

  .nav-shell {
    align-items: start;
    flex-direction: column;
    gap: 0.6rem;
    padding-bottom: 0.8rem;
    padding-top: 0.8rem;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .nav-cta {
    display: none;
  }

  .hero-grid,
  .section-heading,
  .architecture-layout,
  .outcome-layout,
  .proof-layout,
  .contact-strip-inner {
    grid-template-columns: 1fr;
  }

  .grid.four,
  .bridge-grid,
  .module-list,
  .simulation-table,
  .logo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 540px) {
  .section,
  .hero {
    padding: 2.7rem 1rem;
  }

  h1 {
    font-size: 3.2rem;
  }

  h2 {
    font-size: 2rem;
  }

  .grid.four,
  .bridge-grid,
  .module-list,
  .simulation-table,
  .logo-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    display: none;
  }

  .button {
    width: 100%;
  }
}