:root {
  --bg: #071525;
  --card: #0d2847;
  --text: #f5f8fc;
  --muted: rgba(245, 248, 252, 0.72);
  --accent: #00a8c8;
  --line: rgba(255, 255, 255, 0.12);
  --max: 42rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(ellipse 70% 50% at 80% 10%, rgba(0, 168, 200, 0.16), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: #67e8f9;
}

.wrap {
  width: min(100% - 2rem, 720px);
  margin-inline: auto;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.header nav {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

.header nav a {
  color: var(--muted);
  text-decoration: none;
}

.header nav a:hover {
  color: var(--text);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.02em;
}

.lead,
article p {
  color: var(--muted);
  font-size: 1.05rem;
}

article ul {
  color: var(--muted);
  padding-left: 1.2rem;
}

article li {
  margin: 0.4rem 0;
}

.cards {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  display: grid;
  gap: 0.85rem;
}

.cards a {
  display: block;
  text-decoration: none;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(13, 40, 71, 0.72);
}

.cards a:hover {
  border-color: rgba(0, 168, 200, 0.45);
}

.cards strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.cards span {
  color: var(--muted);
  font-size: 0.95rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin: 2.5rem 0 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  border-radius: 8px;
  background: var(--accent);
  color: #042433;
  font-weight: 600;
  text-decoration: none;
}

.link {
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 3rem;
  padding: 1.5rem 0 3rem;
  color: rgba(245, 248, 252, 0.45);
  font-size: 0.85rem;
}

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

.crumb a {
  color: var(--muted);
}