:root {
  --ink: #e8eefc;
  --gold: #7ec8ff;
  --bg: #070b18;
  --panel: rgba(10, 16, 39, 0.88);
  --line: rgba(126, 200, 255, 0.35);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: radial-gradient(ellipse at top, #152044 0%, var(--bg) 55%, #02040a 100%);
  color: var(--ink);
  line-height: 1.55;
  padding: 28px 18px 48px;
}
main, .card {
  width: min(720px, 100%);
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 22px 32px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}
h1 {
  margin: 0 0 6px;
  font-size: 1.7rem;
  color: var(--gold);
  letter-spacing: 0.03em;
}
.meta {
  margin: 0 0 22px;
  opacity: 0.8;
  font-size: 0.95rem;
}
h2 {
  margin: 22px 0 8px;
  font-size: 1.15rem;
  color: var(--gold);
}
p, li { margin: 0 0 10px; }
ul { padding-left: 1.2em; margin: 0 0 12px; }
a { color: var(--gold); }
code {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.92em;
}
nav {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}
.hero-lead { margin-bottom: 18px; }
.links a { display: inline-block; margin: 0 14px 10px 0; }
.langs {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 0 0 20px;
  font-size: 0.95rem;
}
.langs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  opacity: 0.75;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
}
.langs a:hover { opacity: 1; }
.langs a.activo {
  opacity: 1;
  background: rgba(126, 200, 255, 0.16);
}
.langs img {
  width: 22px;
  height: 15px;
  object-fit: cover;
  border-radius: 2px;
}