:root {
  --bg: #0a0a0f;
  --surface: #13131a;
  --border: #1e1e2e;
  --cyan: #00e5ff;
  --text: #e0e0e0;
  --muted: #888;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.7;
  padding: 2rem 1rem 4rem;
}
.container { max-width: 760px; margin: 0 auto; }
header {
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
header a { color: var(--muted); text-decoration: none; font-size: 0.875rem; }
header a:hover { color: var(--text); }
h1 { font-size: 1.75rem; font-weight: 700; margin-top: 1rem; letter-spacing: -0.3px; }
h1 span { color: var(--cyan); }
.meta { color: var(--muted); font-size: 0.85rem; margin-top: 0.5rem; }
h2 { font-size: 1.1rem; font-weight: 600; color: var(--cyan); margin: 2.5rem 0 0.75rem; }
h3 { font-size: 0.95rem; font-weight: 600; margin: 1.5rem 0 0.5rem; }
p { margin-bottom: 1rem; color: #ccc; }
ul { margin: 0.5rem 0 1rem 1.5rem; color: #ccc; }
ul li { margin-bottom: 0.4rem; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.highlight {
  background: #00e5ff0d;
  border-left: 3px solid var(--cyan);
  padding: 1rem 1.25rem;
  border-radius: 0 6px 6px 0;
  margin: 1.5rem 0;
  color: #ccc;
  font-size: 0.95rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  margin-top: 1rem;
  color: #ccc;
  line-height: 2;
}
footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}
footer a { color: var(--muted); }
.footer-pqtls { color: #ffffff; font-size: 0.78em; }