:root {
  color-scheme: light;
  --ink: #18201d;
  --muted: #53615c;
  --paper: #f8f7f2;
  --panel: #ffffff;
  --line: #d8ddd4;
  --green: #16624f;
  --green-2: #28916c;
  --blue: #256d8f;
  --gold: #b97e29;
  --shadow: 0 24px 80px rgba(19, 35, 30, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(120deg, rgba(22, 98, 79, 0.08), transparent 38%),
    linear-gradient(260deg, rgba(37, 109, 143, 0.08), transparent 34%),
    var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 10;
  transform: translateY(-140%);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  padding: 8px 10px;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 18px;
}

.brand,
.site-nav,
.actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 750;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background:
    linear-gradient(135deg, var(--green), var(--green-2) 54%, var(--gold) 55%),
    var(--green);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.42);
}

.site-nav {
  gap: 6px;
}

.site-nav a {
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(22, 98, 79, 0.08);
  color: var(--ink);
  outline: none;
}

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  min-height: calc(100vh - 96px);
  padding: 42px 0 72px;
}

.hero > * {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
  word-break: normal;
}

h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(4rem, 14vw, 7.5rem);
  line-height: 0.86;
  letter-spacing: 0;
}

.dek {
  max-width: 660px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.12rem, 2vw, 1.35rem);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 12px 16px;
  font-weight: 760;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: normal;
}

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

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.64);
  color: var(--ink);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.system-panel {
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(24, 32, 29, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.72)),
    linear-gradient(135deg, rgba(37, 109, 143, 0.12), rgba(185, 126, 41, 0.08));
  box-shadow: var(--shadow);
  padding: 18px;
}

.panel-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
}

.flow {
  display: grid;
  gap: 12px;
  padding-top: 16px;
}

.flow div {
  min-width: 0;
  display: grid;
  grid-template-columns: 32px 1fr;
  column-gap: 12px;
  align-items: start;
  border: 1px solid rgba(24, 32, 29, 0.09);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.72);
  padding: 14px;
}

.flow strong {
  min-width: 0;
  font-size: 1rem;
}

.flow p {
  grid-column: 2;
  min-width: 0;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.node {
  grid-row: span 2;
  width: 26px;
  height: 26px;
  border-radius: 50%;
}

.node.planning {
  background: var(--blue);
}

.node.building {
  background: var(--gold);
}

.node.operating {
  background: var(--green);
}

.proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  border-top: 1px solid var(--line);
  padding: 34px 0 56px;
}

.proof h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.proof p {
  margin: 12px 0 0;
  color: var(--muted);
}

@media (max-width: 820px) {
  .site-header {
    width: min(calc(100% - 48px), 640px);
    padding-top: 18px;
  }

  .site-nav {
    display: none;
  }

  main {
    width: min(calc(100% - 48px), 640px);
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 40px 0 48px;
  }

  h1 {
    max-width: 9ch;
    font-size: clamp(3.25rem, 18vw, 4rem);
  }

  .system-panel {
    order: -1;
  }

  .button {
    display: block;
    width: 100%;
    max-width: calc(100vw - 48px);
    font-size: 0.94rem;
  }

  .system-panel,
  .actions,
  .hero-copy,
  .dek {
    max-width: calc(100vw - 48px);
  }

  .flow div {
    grid-template-columns: 1fr;
  }

  .node {
    grid-row: auto;
  }

  .flow p {
    grid-column: 1;
    max-width: 100%;
  }

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

@media (max-width: 520px) {
  .site-header,
  main {
    width: 300px;
    max-width: calc(100vw - 32px);
  }

  .system-panel,
  .actions,
  .hero-copy,
  .dek,
  .button {
    max-width: 300px;
  }
}