:root {
  --ink: #14201c;
  --muted: #52635d;
  --page: #f5f7f3;
  --surface: #ffffff;
  --line: #d9e1dc;
  --teal: #0f7b72;
  --teal-dark: #075f59;
  --gold: #c68d2d;
  --rose: #b95d64;
  --blue: #2d638b;
  --shadow: 0 20px 55px rgba(20, 32, 28, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
  padding: 14px clamp(18px, 4vw, 54px);
  color: #ffffff;
  background: rgba(18, 31, 27, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.brand {
  display: grid;
  gap: 3px;
}

.brand span,
.eyebrow {
  color: var(--gold);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand strong {
  color: #ffffff;
  font-size: 1.1rem;
  line-height: 1.05;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
}

.site-header nav a {
  min-height: 38px;
  padding: 9px 12px;
  color: rgba(255, 255, 255, 0.84);
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 0.9rem;
  font-weight: 800;
}

.site-header nav a:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.site-header nav .nav-action {
  color: #ffffff;
  background: var(--teal);
}

.hero {
  position: relative;
  min-height: min(760px, calc(100vh - 74px));
  display: grid;
  align-items: center;
  padding: clamp(58px, 8vw, 104px) clamp(18px, 7vw, 88px);
  overflow: hidden;
  color: #ffffff;
  background: #14201c;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(20, 32, 28, 0.96) 0%, rgba(20, 32, 28, 0.86) 42%, rgba(20, 32, 28, 0.54) 100%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero h1 {
  max-width: 640px;
  margin: 0;
  color: #ffffff;
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 560px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.08rem, 1.8vw, 1.34rem);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 7px;
  font-weight: 900;
}

.primary-link {
  color: #ffffff;
  background: var(--teal);
}

.primary-link:hover {
  background: var(--teal-dark);
}

.secondary-link {
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.36);
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: grid;
  place-items: center end;
  padding-right: clamp(14px, 3vw, 48px);
  opacity: 0.78;
  transform: translateX(5vw);
  pointer-events: none;
}

.system-map {
  width: min(40vw, 520px);
  display: grid;
  gap: 14px;
  transform: rotate(-2deg);
}

.map-column,
.signal-panel {
  padding: 22px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-left: 5px solid var(--teal);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.map-column.is-active {
  border-left-color: var(--gold);
}

.map-column span,
.signal-panel span {
  color: var(--gold);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.map-column strong,
.signal-panel strong {
  display: block;
  margin-top: 8px;
  font-size: 1.4rem;
  line-height: 1.1;
}

.map-column p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.signal-panel {
  position: absolute;
  right: clamp(18px, 4vw, 64px);
  bottom: clamp(30px, 8vw, 100px);
  width: min(290px, 24vw);
  border-left-color: var(--rose);
}

.signal-bars {
  display: grid;
  gap: 7px;
  margin-top: 16px;
}

.signal-bars i {
  display: block;
  height: 9px;
  background: #dfe8e3;
  border-radius: 999px;
}

.signal-bars i:nth-child(1) {
  width: 88%;
  background: #b6dcd5;
}

.signal-bars i:nth-child(2) {
  width: 66%;
  background: #ead5a7;
}

.signal-bars i:nth-child(3) {
  width: 48%;
  background: #d9b0b4;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-strip div {
  display: grid;
  gap: 6px;
  min-height: 104px;
  padding: 24px clamp(18px, 4vw, 54px);
  background: #ffffff;
}

.proof-strip strong {
  font-size: 1.08rem;
}

.proof-strip span {
  color: var(--muted);
  line-height: 1.4;
}

.section-block,
.workflow-band,
.cta-section {
  padding: clamp(54px, 7vw, 84px) clamp(18px, 7vw, 88px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-heading h2,
.workflow-band h2,
.cta-section h2 {
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 3.7rem);
  line-height: 1;
  letter-spacing: 0;
}

.section-heading p,
.cta-section p {
  max-width: 660px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.method-grid,
.audience-grid,
.governance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.method-grid article,
.audience-grid article,
.governance-grid article,
.workflow-list article {
  min-height: 206px;
  padding: 22px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(20, 32, 28, 0.07);
}

.method-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: #ffffff;
  background: var(--teal);
  border-radius: 999px;
  font-weight: 900;
}

.method-grid h3,
.audience-grid h3,
.governance-grid h3,
.workflow-list h3 {
  margin: 18px 0 0;
  font-size: 1.28rem;
  line-height: 1.1;
}

.method-grid p,
.audience-grid p,
.governance-grid p,
.workflow-list p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.audience-section {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.audience-grid article {
  min-height: 190px;
  background: #f8faf7;
}

.audience-grid article h3 {
  margin-top: 0;
}

.platform-preview {
  padding: clamp(54px, 7vw, 84px) clamp(18px, 7vw, 88px);
  color: #ffffff;
  background: #14201c;
}

.platform-preview .section-heading p {
  color: rgba(255, 255, 255, 0.75);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.platform-grid article {
  min-height: 246px;
  padding: 22px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.platform-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: #14201c;
  background: #dff1ee;
  border-radius: 999px;
  font-weight: 900;
}

.platform-grid h3 {
  margin: 18px 0 0;
  font-size: 1.24rem;
  line-height: 1.1;
}

.platform-grid p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.5;
}

.workflow-band {
  color: #ffffff;
  background: #1e2c27;
}

.workflow-band > div:first-child {
  max-width: 780px;
  margin-bottom: 30px;
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.workflow-list article {
  min-height: 218px;
  color: var(--ink);
}

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

.governance-grid article:nth-child(1) {
  border-top: 4px solid var(--teal);
}

.governance-grid article:nth-child(2) {
  border-top: 4px solid var(--blue);
}

.governance-grid article:nth-child(3) {
  border-top: 4px solid var(--rose);
}

.governance-grid article:nth-child(4) {
  border-top: 4px solid var(--gold);
}

.cta-section {
  display: grid;
  justify-items: start;
  color: #ffffff;
  background: #14201c;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 26px;
}

@media (max-width: 1180px) {
  .hero {
    min-height: 660px;
  }

  .hero::after {
    background: linear-gradient(90deg, rgba(20, 32, 28, 0.98) 0%, rgba(20, 32, 28, 0.9) 54%, rgba(20, 32, 28, 0.72) 100%);
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero h1 {
    max-width: 640px;
    font-size: clamp(3.25rem, 7vw, 4.9rem);
  }

  .hero-visual {
    opacity: 0.22;
    transform: translateX(12vw) scale(0.94);
  }

  .system-map {
    width: min(540px, 54vw);
  }

  .signal-panel {
    display: none;
  }
}

@media (max-width: 980px) {
  .hero {
    min-height: auto;
    padding-top: 64px;
  }

  .hero::after {
    background: rgba(20, 32, 28, 0.9);
  }

  .hero-visual {
    opacity: 0.12;
    transform: translateX(24vw) scale(0.92);
    place-items: center end;
    padding: 20px 0;
  }

  .system-map {
    width: min(760px, 92vw);
  }

  .signal-panel {
    display: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    min-height: auto;
  }

  .site-header nav {
    width: 100%;
    justify-content: flex-start;
  }

  .proof-strip,
  .method-grid,
  .audience-grid,
  .platform-grid,
  .workflow-list,
  .governance .governance-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 56px 18px;
  }

  .hero-visual {
    display: none;
  }

  .hero::after {
    background: rgba(20, 32, 28, 0.92);
  }

  .hero-lede {
    font-size: 1.04rem;
  }

  .proof-strip div,
  .method-grid article,
  .audience-grid article,
  .governance-grid article,
  .workflow-list article,
  .platform-grid article {
    min-height: auto;
  }

  .section-block,
  .workflow-band,
  .platform-preview,
  .cta-section {
    padding: 48px 18px;
  }

  .section-heading {
    margin-bottom: 24px;
  }
}

@media (max-width: 620px) {
  .brand strong {
    font-size: 1rem;
  }

  .site-header nav a {
    flex: 1 1 calc(50% - 8px);
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.84rem;
    text-align: center;
  }

  .site-header nav .nav-action {
    flex-basis: 100%;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 12vw, 3rem);
    line-height: 1;
  }

  .hero-lede {
    margin-top: 18px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 26px;
  }

  .primary-link,
  .secondary-link {
    width: 100%;
  }

  .section-heading h2,
  .workflow-band h2,
  .cta-section h2 {
    font-size: clamp(1.85rem, 10vw, 2.55rem);
  }

  .section-heading p,
  .cta-section p {
    font-size: 1rem;
  }

  .proof-strip div,
  .method-grid article,
  .audience-grid article,
  .governance-grid article,
  .workflow-list article,
  .platform-grid article {
    padding: 18px;
    box-shadow: none;
  }

  .map-column {
    padding: 18px;
  }
}