:root {
  color-scheme: light;
  --ink: #16191f;
  --muted: #5d6470;
  --line: #d9dde4;
  --surface: #ffffff;
  --accent: #0f766e;
  --accent-strong: #134e4a;
  --wash: #f4f6f8;
}

* {
  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;
}

main {
  min-height: 100vh;
}

.hero {
  display: grid;
  min-height: 72vh;
  align-items: end;
  padding: 8vw;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(244, 246, 248, 0.96)),
    url("entityos-grid.svg");
  background-size: cover;
}

.hero > div {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent-strong);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.55;
}

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

.actions a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.actions a + a {
  background: transparent;
  color: var(--accent-strong);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

article {
  min-height: 220px;
  padding: 32px;
  background: var(--surface);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.1rem;
  letter-spacing: 0;
}

article p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 70vh;
    padding: 28px;
  }

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