:root {
  --green: #11cc9a;
  --green-dark: #0a9d75;
  --yellow: #ffe41f;
  --bg: #f8f8f8;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --border: #e0e0e0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

header {
  background: linear-gradient(135deg, var(--green) 0%, #0fb888 55%, rgba(255, 228, 31, 0.35) 100%);
  color: #fff;
  padding: 2.5rem 1.25rem 2rem;
}

header .wrap,
main .wrap,
footer .wrap {
  max-width: 760px;
  margin: 0 auto;
}

.brand {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
}

.subtitle {
  margin: 0;
  opacity: 0.92;
  font-size: 0.95rem;
}

main {
  padding: 2rem 1.25rem 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.75rem 1.5rem;
  box-shadow: 0 8px 28px rgba(17, 204, 154, 0.08);
}

h2 {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.15rem;
  color: var(--green-dark);
}

h2:first-child {
  margin-top: 0;
}

p,
li {
  color: var(--text);
}

ul {
  padding-left: 1.2rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

a {
  color: var(--green-dark);
  font-weight: 600;
}

footer {
  padding: 1.5rem 1.25rem 2.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}

.nav-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}