:root {
  --bg: #071a2e;
  --card: #0f2b45;
  --line: #1d4668;
  --text: #e5f1ff;
  --muted: #b6ccdd;
  --accent: #31c9cc;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -20%, #11385a 0%, transparent 50%),
    linear-gradient(180deg, #061726 0%, #041220 100%);
  min-height: 100vh;
}

.hero { padding: 3rem 1.5rem 2rem; text-align: center; }
.kicker { text-transform: uppercase; letter-spacing: .12em; color: var(--accent); font-weight: 700; }
.subtitle { color: var(--muted); }
main { max-width: 960px; margin: 0 auto; padding: 0 1.5rem 3rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card {
  background: linear-gradient(155deg, rgba(15,43,69,.95), rgba(12,35,57,.9));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}
.highlight { border-color: #40d9d2; box-shadow: 0 0 0 1px rgba(49,201,204,0.12), 0 10px 30px rgba(2,33,47,.45); }
.btn {
  display: inline-block;
  margin-top: .4rem;
  color: #08212f;
  background: var(--accent);
  text-decoration: none;
  border-radius: 999px;
  padding: .6rem 1rem;
  font-weight: 700;
}
.muted { color: var(--muted); }