:root {
  --color-ink: #111827;
  --color-muted: #4b5563;
  --color-line: #d9e2e3;
  --color-page: #f7f9f8;
  --color-surface: #ffffff;
  --color-teal: #14b8a6;
  --color-teal-dark: #0f766e;
  --color-blue: #2563eb;
  --color-amber: #b45309;
  --shadow-panel: 0 24px 70px rgba(17, 24, 39, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--color-ink);
  background: var(--color-page);
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand img {
  display: block;
  height: 28px;
  width: auto;
}

.site-nav a,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a {
  padding: 0 16px;
  color: var(--color-teal-dark);
  border: 1px solid rgba(20, 184, 166, 0.35);
  background: rgba(255, 255, 255, 0.78);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(52px, 8vw, 92px) 0 clamp(42px, 7vw, 72px);
}

.hero-copy {
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--color-teal-dark);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(3rem, 8vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.lede {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  padding: 0 20px;
  border: 1px solid transparent;
}

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

.button-secondary {
  color: var(--color-ink);
  border-color: var(--color-line);
  background: var(--color-surface);
}

.signal-preview {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 58px;
  padding: 0 18px;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-line);
}

.preview-header span {
  font-size: 0.9rem;
  font-weight: 800;
}

.preview-header strong {
  color: var(--color-teal-dark);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}

.preview-panel {
  min-height: 146px;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: #fbfdfc;
}

.preview-panel .label,
.preview-panel .metric {
  display: block;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.preview-panel strong {
  display: block;
  margin-top: 18px;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.2;
}

.preview-panel .metric {
  margin-top: 18px;
}

.preview-panel.accent {
  color: #ffffff;
  border-color: var(--color-blue);
  background: var(--color-blue);
}

.preview-panel.accent .label,
.preview-panel.accent .metric {
  color: rgba(255, 255, 255, 0.82);
}

.focus-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 52px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-line);
}

.focus-band div {
  min-height: 122px;
  padding: 22px;
  background: var(--color-surface);
}

.focus-band span {
  display: block;
  color: var(--color-amber);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.focus-band strong {
  display: block;
  margin-top: 16px;
  font-size: 1.04rem;
  line-height: 1.35;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 38px;
  }

  .signal-preview {
    max-width: 620px;
  }

  .focus-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    width: min(100% - 28px, 1120px);
    padding-top: 16px;
  }

  .site-nav a {
    min-height: 40px;
    padding: 0 12px;
    font-size: 0.86rem;
  }

  .hero,
  .focus-band {
    width: min(100% - 28px, 1120px);
  }

  h1 {
    font-size: clamp(2.5rem, 18vw, 3.5rem);
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

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