:root {
  --bg: #0f1320;
  --card: #1a2033;
  --text: #eaf0ff;
  --muted: #aeb8d6;
  --accent: #6aa3ff;
  --line: #2f3a58;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(160deg, #0f1320 0%, #1a2545 100%);
  color: var(--text);
  line-height: 1.6;
}
.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px;
}
header, footer { padding: 14px 0; }
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
nav a {
  color: var(--text);
  text-decoration: none;
  margin-right: 14px;
  font-weight: 600;
}
nav a:hover { color: var(--accent); }
.card {
  background: rgba(26, 32, 51, 0.92);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  margin: 14px 0;
}
h1, h2, h3 { line-height: 1.25; }
h1 { font-size: 2rem; margin: 0 0 8px; }
h2 { margin-top: 0; }
small, .muted { color: var(--muted); }
a { color: var(--accent); }
ul { padding-left: 20px; }
.splash {
  width: 100%;
  max-width: 180px;
  height: auto;
  border-radius: 14px;
  display: block;
  margin: 0 auto 14px;
  border: 1px solid var(--line);
}
hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 18px 0;
}