:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --ink: #10233f;
  --muted: #5b6b82;
  --line: #dce5f0;
  --accent: #0f766e;
  --accent-2: #0b1f3a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.24), transparent 32%),
    linear-gradient(180deg, #eef5ff 0%, var(--bg) 55%, #f8fbff 100%);
  color: var(--ink);
}

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 18px 64px;
}

.hero {
  background: linear-gradient(135deg, var(--accent-2), #133e75);
  color: white;
  border-radius: 28px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(11, 31, 58, 0.18);
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1;
}

.hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  max-width: 700px;
  line-height: 1.6;
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.nav a,
.cta {
  text-decoration: none;
  color: white;
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.card,
.section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 10px 24px rgba(16, 35, 63, 0.04);
}

.card h3,
.section h2 {
  margin-top: 0;
}

.section {
  margin-top: 18px;
}

.section p,
.section li,
.card p {
  color: var(--muted);
  line-height: 1.65;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: #ebfffb;
  padding: 6px 10px;
  border-radius: 999px;
}

ul {
  padding-left: 18px;
}

.footer {
  margin-top: 30px;
  color: var(--muted);
  font-size: 14px;
}