:root {
  --text: #1a1a1a;
  --muted: #4a4f57;
  --bg: #ffffff;
  --surface: #f4f5f7;
  --border: #d5d9df;
  --link: #0b5cad;
  --accent: #0b3d6e;
}

* { box-sizing: border-box; }

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

a { color: var(--link); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.container { max-width: 52rem; margin: 0 auto; padding: 0 1rem; }

header { border-bottom: 1px solid var(--border); }
header .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; padding-top: 1rem; padding-bottom: 1rem; }
.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; list-style: none; }

main { padding: 2rem 0 3rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 1rem; color: var(--accent); }
h2 { font-size: 1.35rem; margin: 2rem 0 0.5rem; }

.cards, .tiers { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin: 1.5rem 0; }
.card, .tier { border: 1px solid var(--border); border-radius: 8px; padding: 1.25rem; background: var(--surface); }
.card h2, .tier h2 { margin-top: 0; }
.tier ul { padding-left: 1.2rem; margin: 0.5rem 0 0; }
.price { font-size: 1.25rem; font-weight: 700; margin: 0.25rem 0; }

.policy { max-width: 42rem; }
.policy p, .policy li { margin: 0.5rem 0; }

footer { border-top: 1px solid var(--border); background: var(--surface); padding: 1.5rem 0; font-size: 0.95rem; color: var(--muted); }
footer p { margin: 0 0 0.5rem; }
footer ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; list-style: none; }

@media (max-width: 640px) {
  h1 { font-size: 1.6rem; }
  main { padding: 1.25rem 0 2rem; }
}