:root {
  --navy-deep: #0a0e1f;
  --navy-mid: #121834;
  --indigo: #4f46e5;
  --indigo-light: #6366f1;
  --violet: #8b5cf6;
  --teal: #14b8a6;
  --ink: #0f1424;
  --ink-70: #5b6178;
  --ink-50: #8b90a3;
  --paper: #ffffff;
  --bg-soft: #f5f6fb;
  --line: #e7e8f2;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg-soft); color: var(--ink); line-height: 1.6;
}
a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }

header.site-header {
  background: var(--paper); border-bottom: 1px solid var(--line);
  padding: 16px 0; position: sticky; top: 0; z-index: 10;
}
header.site-header .wrap { display: flex; align-items: center; justify-content: space-between; max-width: 1100px; }
header.site-header img { height: 30px; display: block; }
header.site-header nav a { color: var(--ink-70); font-size: 14px; font-weight: 600; margin-left: 24px; }
header.site-header nav a:hover { color: var(--indigo); text-decoration: none; }

.btn {
  display: inline-block; padding: 12px 24px; border-radius: 10px; font-weight: 700; font-size: 15px;
  background: linear-gradient(135deg, var(--indigo), var(--violet)); color: #fff; border: none; cursor: pointer;
}
.btn:hover { text-decoration: none; opacity: .92; }
.btn-lg { padding: 16px 32px; font-size: 17px; }

.breadcrumb { font-size: 13px; color: var(--ink-50); margin: 28px 0 8px; }
.breadcrumb a { color: var(--ink-50); }

.post-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  padding: 24px; margin-bottom: 18px;
}
.post-card .fecha { font-size: 12.5px; color: var(--ink-50); text-transform: uppercase; letter-spacing: .04em; font-weight: 700; }
.post-card h2 { margin: 8px 0 8px; font-size: 22px; }
.post-card h2 a { color: var(--ink); }
.post-card p { color: var(--ink-70); margin: 0 0 12px; }

article h1 { font-size: 32px; margin: 12px 0 8px; line-height: 1.25; }
article .meta { color: var(--ink-50); font-size: 13.5px; margin-bottom: 28px; }
article h2 { font-size: 22px; margin: 32px 0 12px; }
article p, article li { color: var(--ink-70); font-size: 16px; }
article ul, article ol { padding-left: 22px; }

.cta-box {
  background: var(--navy-deep); border-radius: 16px; padding: 32px; margin: 36px 0;
  text-align: center; color: #fff;
}
.cta-box h3 { margin: 0 0 10px; font-size: 22px; }
.cta-box p { color: #c7d2fe; margin: 0 0 20px; }

footer.site-footer {
  border-top: 1px solid var(--line); margin-top: 60px; padding: 32px 0; text-align: center;
  color: var(--ink-50); font-size: 13.5px;
}