:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --ink: #151d26;
  --muted: #617083;
  --panel: #ffffff;
  --line: #d7e0e7;
  --accent: #0f7b77;
  --accent-dark: #095552;
  --gold: #c89435;
  --shadow: 0 20px 60px rgba(25, 40, 52, 0.1);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 48px;
  border-bottom: 1px solid rgba(215, 224, 231, 0.9);
  background: rgba(244, 246, 248, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: var(--ink);
  color: white;
  font-size: 0.82rem;
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}

.nav-button,
.primary-action,
.secondary-action,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 0 16px;
  font-weight: 800;
  cursor: pointer;
}

.nav-button,
.primary-action,
button {
  background: var(--accent);
  color: white;
}

.secondary-action {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
}

main {
  overflow: hidden;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 520px);
  align-items: center;
  gap: 56px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 32px 72px;
}

.hero-copy {
  display: grid;
  gap: 22px;
}

.eyebrow {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 4.4rem;
  line-height: 0.96;
}

h2 {
  margin-bottom: 0;
  font-size: 2.4rem;
  line-height: 1.06;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.lede {
  max-width: 690px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.22rem;
  line-height: 1.55;
}

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

.signal-board {
  display: grid;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.signal-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.signal-row span {
  color: var(--muted);
  font-weight: 800;
}

.bridge-line {
  width: 2px;
  height: 24px;
  margin-left: 28px;
  background: var(--gold);
}

.audit-strip {
  min-height: 42px;
  padding: 12px 14px;
  border-radius: 6px;
  background: #10202a;
  color: white;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 84px 32px;
}

.section-heading {
  max-width: 760px;
  display: grid;
  gap: 12px;
  margin-bottom: 30px;
}

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

.feature-grid article,
.check-panel,
.lead-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.feature-grid article {
  padding: 20px;
}

.feature-grid p,
.pilot p {
  color: var(--muted);
  line-height: 1.5;
}

.split,
.pilot {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 36px;
  align-items: start;
}

.check-panel {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.check-panel div {
  min-height: 44px;
  padding: 12px 14px;
  border-radius: 6px;
  background: #eef4f5;
  font-weight: 750;
}

.lead-form {
  display: grid;
  gap: 14px;
  padding: 22px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 11px 12px;
  background: white;
  color: var(--ink);
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--accent-dark);
  font-weight: 800;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 920px) {
  .site-header,
  footer {
    padding-inline: 20px;
  }

  nav {
    display: none;
  }

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

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2rem;
  }

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