* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #050a10;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(16, 185, 129, 0.18), transparent 34rem),
    linear-gradient(135deg, #050a10 0%, #0d1724 100%);
  color: #eef6ff;
}

main {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.nav a {
  color: #c8d5e3;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.04);
}

.nav a:hover {
  color: #ffffff;
  border-color: rgba(16, 185, 129, 0.55);
}

.card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  padding: clamp(24px, 5vw, 44px);
  background: rgba(9, 17, 28, 0.86);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(36px, 7vw, 64px);
  line-height: 1.05;
}

h2 {
  margin: 30px 0 12px;
  font-size: 22px;
}

p,
li {
  color: #c8d5e3;
  font-size: 16px;
  line-height: 1.8;
}

.meta {
  margin-top: 0;
  color: #10b981;
  font-weight: 700;
}

a {
  color: #34d399;
}

footer {
  margin-top: 36px;
  color: #7d8b99;
  font-size: 14px;
}