* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #f5f5f7;
  color: #1d1d1f;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 720px;
  padding: 48px 24px;
  text-align: center;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.subtitle {
  color: #86868b;
  margin-bottom: 40px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 32px 20px;
  background: #fff;
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card-icon {
  font-size: 2.4rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.card-desc {
  font-size: 0.85rem;
  color: #86868b;
}

footer {
  font-size: 0.8rem;
  color: #aeaeb2;
}