:root {
  --bg: #fafaf8;
  --text: #0a1628;
  --soft: #4a5568;
  --line: #dcdcd6;
  --button-bg: #0a1628;
  --button-text: #fafaf8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1628;
    --text: #f1f4f8;
    --soft: #9fb0c6;
    --line: #1f3252;
    --button-bg: #f1f4f8;
    --button-text: #0a1628;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.top {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
}

nav { display: flex; gap: 24px; font-size: 14px; }
nav a { color: var(--soft); text-decoration: none; }
nav a:hover { color: var(--text); }

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 96px 24px 80px;
}

.hero h1 {
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 16px;
  max-width: 14em;
}

.hero p { font-size: 18px; color: var(--soft); margin: 0 0 28px; max-width: 30em; }

.button {
  display: inline-block;
  background: var(--button-bg);
  color: var(--button-text);
  padding: 11px 20px;
  border-radius: 6px;
  font-size: 15px;
  text-decoration: none;
}

.grid {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  border-top: 1px solid var(--line);
}

.grid > div { padding: 28px 24px; border-bottom: 1px solid var(--line); }
.grid > div + div { border-left: 1px solid var(--line); }

@media (max-width: 600px) {
  .top { padding: 16px 20px; }
  .brand { white-space: nowrap; font-size: 15px; gap: 8px; }
  nav { gap: 14px; font-size: 13px; }
  nav a { padding: 8px 0; white-space: nowrap; }
  .hero { padding: 56px 20px 48px; }
  .hero p { font-size: 17px; }
  .button { display: block; text-align: center; padding: 14px 20px; }
  .grid > div { padding: 24px 20px; }
  .grid > div + div { border-left: 0; }
  footer { padding: 24px 20px 40px; }
}

@media (max-width: 400px) {
  nav a[href="#what-we-do"] { display: none; }
}

@media (max-width: 340px) {
  .brand span { display: none; }
}

h2 { font-size: 16px; font-weight: 500; margin: 0 0 8px; }
.grid p { margin: 0; color: var(--soft); }
.soft { color: var(--soft); }

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  font-size: 13px;
  color: var(--soft);
}
footer p { margin: 0; }