:root {
  --max-width: 920px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
}

header {
  border-bottom: 1px solid #e6e6e6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px;
}

nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 0;
}

nav a {
  text-decoration: none;
  color: inherit;
  padding: 6px 10px;
  border-radius: 8px;
}

nav a:hover {
  background: #f3f3f3;
}

main {
  padding: 24px 0 56px;
}

.hero {
  padding: 28px 0;
}

.card {
  border: 1px solid #e6e6e6;
  border-radius: 14px;
  padding: 16px;
  margin: 14px 0;
}

footer {
  border-top: 1px solid #e6e6e6;
  padding: 18px 0;
  font-size: 0.95rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.small {
  opacity: 0.8;
}