:root {
  --bg: #f4f7f9;
  --ink: #1d2a33;
  --muted: #5b6b76;
  --accent: #2b6f8f;
  --card: #ffffff;
  --line: #dbe3e8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}
header {
  background: linear-gradient(180deg, #16384a, #24566f);
  color: #fff;
  padding: 2.2rem 1rem 1.6rem;
  text-align: center;
}
header h1 { margin: 0; font-size: 2rem; font-weight: normal; letter-spacing: .02em; }
header p { margin: .4rem 0 0; opacity: .85; font-style: italic; }
nav {
  background: #fff;
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: .7rem 1rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .95rem;
}
nav a {
  color: var(--accent);
  text-decoration: none;
  margin: 0 .8rem;
  display: inline-block;
}
nav a:hover, nav a.active { text-decoration: underline; }
main { max-width: 820px; margin: 0 auto; padding: 2rem 1rem 3rem; }
h2 { font-weight: normal; color: #16384a; border-bottom: 1px solid var(--line); padding-bottom: .3rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.1rem 1.3rem;
  margin: 1rem 0;
}
.card h3 { margin: 0 0 .3rem; color: #16384a; }
.latin { color: var(--muted); font-style: italic; font-size: .95rem; }
.facts { font-family: Arial, Helvetica, sans-serif; font-size: .9rem; color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; font-size: .92rem; background: #fff; }
th, td { border: 1px solid var(--line); padding: .5rem .6rem; text-align: left; }
th { background: #eef3f6; }
footer {
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .8rem;
  color: var(--muted);
  padding: 1.5rem 1rem 2rem;
  border-top: 1px solid var(--line);
}