:root {
  --ink: #121a17;
  --muted: #5d6b64;
  --panel: #ffffff;
  --line: #dce4df;
  --wash: #f5f7f2;
  --green: #0e6f5d;
  --green-dark: #064a3e;
  --gold: #b4841c;
  --blue: #315f8f;
  --shadow: 0 24px 70px rgba(18, 26, 23, 0.09);
}

* {
  box-sizing: border-box;
}

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

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

.hero,
.problem-band,
.case-study,
.systems,
.markets,
.offers,
.offer,
.diagnosis {
  width: min(1160px, calc(100vw - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 88vh;
  padding: 28px 0 70px;
}

.nav,
.hero-grid,
.offer,
.diagnosis {
  display: grid;
  gap: 24px;
}

.nav {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 74px;
  font-weight: 900;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
}

.nav a,
.nav-links a {
  color: var(--green-dark);
}

.hero-grid {
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  align-items: end;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 900;
}

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

.secondary-link {
  border: 1px solid var(--line);
  background: #fff;
}

.signal-panel,
.case-card,
.systems article,
.market-card,
.price-card,
.offer-card,
.diagnosis-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.signal-panel {
  padding: 24px;
}

.signal-panel span,
.case-card span,
.market-card span,
.price-card span,
.systems article p,
.offer-card span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.signal-panel strong,
.price-card strong,
.offer-card strong {
  display: block;
  margin: 12px 0;
  font-size: 1.55rem;
  line-height: 1.15;
}

.signal-panel p,
.case-study p,
.case-card p,
.market-card p,
.systems span,
.offer p,
.diagnosis p,
.price-card p,
.offer-card p {
  color: var(--muted);
  line-height: 1.6;
}

.problem-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 54px 0;
}

.problem-band p {
  max-width: 820px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.6;
}

.case-study {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(320px, 1fr);
  gap: 24px;
  align-items: start;
  padding: 64px 0;
}

.case-study > div:first-child p:last-child,
.section-heading {
  max-width: 760px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.case-card {
  min-height: 170px;
  padding: 20px;
}

.case-card p {
  margin: 12px 0 0;
}

.systems {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 54px 0;
}

.systems article {
  min-height: 230px;
  padding: 20px;
}

.systems article p {
  margin-bottom: 28px;
  color: var(--gold);
}

.systems h2 {
  font-size: 1.45rem;
  line-height: 1.08;
}

.markets {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0 0 54px;
}

.section-heading {
  grid-column: 1 / -1;
  padding-bottom: 8px;
}

.market-card {
  min-height: 230px;
  padding: 20px;
}

.market-card h3 {
  margin: 12px 0;
  font-size: 1.35rem;
  line-height: 1.12;
}

.offers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0 0 54px;
}

.offer-card {
  min-height: 260px;
  padding: 20px;
}

.offer-card h2 {
  font-size: 1.35rem;
  line-height: 1.08;
}

.offer-card.featured {
  border-color: rgba(14, 111, 93, 0.34);
  background: #fafff9;
}

.offer {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr);
  align-items: center;
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.price-card {
  padding: 24px;
}

.diagnosis {
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  align-items: start;
  padding: 70px 0 90px;
  border-top: 1px solid var(--line);
}

.diagnosis-form {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.diagnosis-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 900;
}

.diagnosis-form input,
.diagnosis-form select,
.diagnosis-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--ink);
  font: inherit;
}

.diagnosis-form input,
.diagnosis-form select {
  min-height: 44px;
  padding: 0 12px;
}

.diagnosis-form textarea {
  resize: vertical;
  padding: 12px;
  line-height: 1.5;
}

.form-button {
  justify-content: center;
  width: 100%;
  border: 0;
  cursor: pointer;
  font: inherit;
}

.form-status {
  min-height: 22px;
  margin: 0;
  font-weight: 800;
}

.form-status[data-type="success"] {
  color: var(--green-dark);
}

.form-status[data-type="error"] {
  color: #9a2f43;
}

@media (max-width: 900px) {
  .hero-grid,
  .offer,
  .case-study,
  .systems,
  .markets,
  .offers,
  .diagnosis {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .nav {
    grid-template-columns: 1fr;
    margin-bottom: 48px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero,
  .problem-band,
  .case-study,
  .systems,
  .markets,
  .offers,
  .offer,
  .diagnosis {
    width: calc(100vw - 20px);
  }

  .hero-actions a {
    width: 100%;
    justify-content: center;
  }

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

  .systems article,
  .market-card,
  .offer-card {
    min-height: auto;
  }
}