:root {
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --bg: #ffffff;
  --bg-alt: #f5f4f1;
  --accent: #1f4d3d;
  --border: #e3e1db;
  --max-width: 780px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.container.narrow {
  max-width: var(--max-width);
}

h1, h2, h3 {
  line-height: 1.25;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: 1.6rem; margin-bottom: 32px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }

p { margin: 0 0 16px; color: var(--ink-soft); }

section, header.hero, footer {
  padding: 72px 0;
}

.hero {
  background: var(--bg-alt);
  text-align: center;
}

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.hero h1 { max-width: 760px; margin-left: auto; margin-right: auto; }

.hero .subhead {
  max-width: 620px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: opacity 0.15s ease;
}

.button:hover { opacity: 0.85; }

.about { border-bottom: 1px solid var(--border); }

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}

.proof-item, .focus-item {
  margin-bottom: 32px;
}

.proof-item:last-child { margin-bottom: 0; }

.engage {
  background: var(--bg-alt);
  text-align: center;
}

.engage .container.narrow { text-align: left; }

.book {
  text-align: center;
}

footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

footer p {
  margin: 0;
  font-size: 0.85rem;
}

@media (max-width: 600px) {
  section, header.hero, footer { padding: 48px 0; }
}