/*
 * Estilos del blog estático de Afterpacer.
 *
 * Fichero FUENTE: se edita a mano y Vite lo copia a dist/blog/blog.css.
 * (Las páginas .html y feed.xml de esta carpeta sí se generan con `scripts/build-blog.mjs`.)
 */

:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 8px 24px -12px rgba(15, 23, 42, 0.18);
  --max: 780px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1f5f9;
    --ink-soft: #cbd5e1;
    --muted: #94a3b8;
    --line: #1e293b;
    --bg: #030712;
    --bg-soft: #0b1220;
    --card: #0f172a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 12px 32px -16px rgba(0, 0, 0, 0.7);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--blue-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Cabecera ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 1080px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--ink);
  font-size: 1.05rem;
}

.brand svg {
  color: var(--blue-600);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.92rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink-soft);
}

.site-nav a:hover {
  color: var(--blue-600);
}

.lang-switch {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 600;
  color: var(--ink-soft) !important;
}

.lang-switch:hover {
  border-color: var(--blue-500);
  text-decoration: none;
}

/* ---------- Intro / índice ---------- */

.page-intro {
  padding: 48px 0 8px;
}

.page-intro h1 {
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.08rem;
  color: var(--ink-soft);
  margin: 0;
}

.card-grid {
  display: grid;
  gap: 20px;
  padding: 28px 0 8px;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--blue-500);
}

.card-link {
  display: block;
  color: inherit;
}

.card-link:hover {
  text-decoration: none;
}

.card img {
  width: 100%;
  /* Misma proporción que las imágenes OG (1200x630) para no recortarlas. */
  aspect-ratio: 1200 / 630;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.card-body {
  padding: 18px 20px 22px;
}

.card-meta {
  margin: 0 0 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  line-height: 1.35;
}

.card p {
  margin: 0 0 12px;
  color: var(--ink-soft);
}

.card-cta {
  font-weight: 600;
  color: var(--blue-600);
}

/* ---------- Artículo ---------- */

.post {
  padding: 32px 0 8px;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.post h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.35rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  font-size: 0.88rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin: 0 0 28px;
}

.tag {
  background: var(--blue-50);
  color: var(--blue-700);
  border-radius: 999px;
  padding: 2px 10px;
  font-weight: 600;
  font-size: 0.78rem;
}

@media (prefers-color-scheme: dark) {
  .tag {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-100);
  }
}

.post-body > p:first-child {
  font-size: 1.12rem;
  color: var(--ink-soft);
}

.post-body h2 {
  font-size: 1.4rem;
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}

.post-body h3 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
}

.post-body ul,
.post-body ol {
  padding-left: 22px;
  margin: 0 0 18px;
}

.post-body li {
  margin-bottom: 8px;
}

.post-body code {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
  font-size: 0.92rem;
  display: block;
  overflow-x: auto;
}

.post-body th,
.post-body td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
  vertical-align: top;
}

.post-body th {
  background: var(--bg-soft);
  font-weight: 700;
}

.post-body blockquote {
  margin: 0 0 20px;
  padding: 4px 18px;
  border-left: 3px solid var(--blue-500);
  color: var(--ink-soft);
}

/* ---------- CTA ---------- */

.cta-box {
  margin: 44px 0 8px;
  padding: 26px 24px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--blue-600), #1e40af);
  color: #fff;
  text-align: center;
}

.cta-box h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  color: #fff;
}

.cta-box p {
  margin: 0 0 18px;
  color: var(--blue-100);
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border-radius: 999px;
  padding: 11px 22px;
  font-weight: 700;
  font-size: 0.95rem;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: #fff;
  color: var(--blue-700);
}

.btn-ghost {
  border: 2px solid rgba(255, 255, 255, 0.75);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ---------- Relacionados ---------- */

.related {
  margin: 36px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.related h2 {
  font-size: 1.05rem;
  margin: 0 0 12px;
}

.related ul {
  margin: 0;
  padding-left: 20px;
}

.related li {
  margin-bottom: 8px;
}

.back-link {
  margin: 26px 0 0;
  font-size: 0.92rem;
}

/* ---------- Pie ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding: 32px 0 40px;
  background: var(--bg-soft);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.footer-grid strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
}

.footer-grid p {
  margin: 0;
}

.footer-bottom {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---------- Utilidades ---------- */

@media (max-width: 600px) {
  .site-nav {
    gap: 12px;
    font-size: 0.85rem;
  }

  .page-intro {
    padding-top: 32px;
  }
}