:root {
  --fg: #1c2430;
  --muted: #5b6673;
  --line: #e3e8ee;
  --bg: #ffffff;
  --accent: #0b6bcb;
  --warn-bg: #fff4d6;
  --warn-border: #f0d48a;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

.wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

header.site {
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
}

header.site .wrap {
  padding: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

header.site a.brand {
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.2px;
}

header.site nav {
  margin-left: auto;
  display: flex;
  gap: 16px;
  font-size: 0.92rem;
}

header.site nav a {
  color: var(--muted);
  text-decoration: none;
}

header.site nav a:hover {
  color: var(--accent);
}

h1 {
  font-size: 1.7rem;
  line-height: 1.25;
  margin: 8px 0 4px;
}

h2 {
  font-size: 1.18rem;
  margin: 32px 0 8px;
}

h3 {
  font-size: 1rem;
  margin: 20px 0 6px;
}

p,
li {
  color: var(--fg);
}

ul,
ol {
  padding-left: 22px;
}

.muted {
  color: var(--muted);
}

.lead {
  color: var(--muted);
  font-size: 1.02rem;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

a {
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  border: 1px solid var(--line);
  padding: 8px 10px;
  vertical-align: top;
}

th {
  background: #f7f9fc;
}

.completar {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 4px;
  padding: 0 4px;
  white-space: nowrap;
}

footer.site {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding: 20px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site .wrap {
  padding: 0;
}

.cards {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--fg);
  display: block;
}

.card:hover {
  border-color: var(--accent);
}

.card strong {
  display: block;
  font-size: 1.05rem;
}

.card span {
  color: var(--muted);
  font-size: 0.92rem;
}