:root {
  color-scheme: dark;
  --bg: #1255cc;
  --bg-mid: #1a6ad8;
  --bg-bottom: #3a9aef;
  --card: rgba(7, 20, 49, 0.78);
  --panel: #183080;
  --text: #ffffff;
  --muted: #b0d8ff;
  --yellow: #ffd600;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, var(--bg), var(--bg-mid) 48%, var(--bg-bottom));
  color: var(--text);
  padding: 24px;
}

main {
  width: min(800px, 100%);
  margin: 0 auto;
  background: var(--card);
  border: 2px solid rgba(176, 216, 255, 0.35);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

h1 {
  margin: 0 0 8px;
  font-size: 40px;
  line-height: 1;
}

h2 {
  margin: 24px 0 8px;
  font-size: 22px;
}

p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

a {
  color: var(--yellow);
  font-weight: 800;
}

.updated {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  margin-bottom: 24px;
}

.contact-card {
  background: var(--panel);
  border: 2px solid rgba(176, 216, 255, 0.24);
  border-radius: 8px;
  padding: 16px;
}