:root {
  --brand: #38b74e;
  --brand-dark: #1d5e28;
  --accent: #537b7c;
  --bg: #f5f7f6;
  --text: #1f2a24;
}

* {
  box-sizing: border-box;
}

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

.header {
  background: var(--accent);
  padding: 16px 32px;
}

.logo {
  height: 40px;
  display: block;
}

.main {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 24px;
  text-align: center;
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  color: var(--brand-dark);
}

.intro {
  margin: 0 0 40px;
  color: #566;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  display: block;
  background: #fff;
  border-radius: 12px;
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  text-align: left;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  border-color: var(--brand);
}

.card h2 {
  margin: 0 0 8px;
  color: var(--brand-dark);
  font-size: 1.25rem;
}

.card p {
  margin: 0;
  color: #556;
  font-size: 0.95rem;
}