:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --ink: #1b2430;
  --muted: #6b7280;
  --line: #e5e7eb;
  --teal: #0f766e;
  --teal-soft: #f0fdfa;
  --amber: #b45309;
  --indigo: #4f46e5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216; --card: #171b21; --ink: #e8eaed; --muted: #9aa3af;
    --line: #262b33; --teal: #2dd4bf; --teal-soft: #16302c; --amber: #fbbf24;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 24px; background: var(--card); border-bottom: 1px solid var(--line);
}
.topbar .logo { font-size: 34px; }
.topbar h1 { margin: 0; font-size: 22px; }
.topbar .sub { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 24px 20px 64px; }
.intro {
  background: var(--teal-soft); border: 1px solid var(--line); border-left: 4px solid var(--teal);
  border-radius: 10px; padding: 14px 18px; margin: 8px 0 28px; color: var(--ink); font-size: 14px;
}
h2.section { font-size: 15px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--muted); margin: 34px 0 12px; }
.featured a {
  display: flex; align-items: center; gap: 18px; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px 24px;
  box-shadow: 0 2px 10px rgba(0,0,0,.05); transition: transform .12s ease, box-shadow .12s ease;
}
.featured a:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,.12); }
.featured .ic { font-size: 40px; }
.featured .t { font-size: 20px; font-weight: 800; }
.featured .d { color: var(--muted); font-size: 14px; margin-top: 2px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.card {
  display: flex; align-items: flex-start; gap: 12px; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px;
  transition: transform .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--teal); }
.card .ic { font-size: 26px; line-height: 1; }
.card .t { font-weight: 700; font-size: 15px; }
.card .d { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.card.flujo:hover { border-color: var(--amber); }
.foot { color: var(--muted); font-size: 12px; margin-top: 40px; text-align: center; }