/*
 * Blog estático de Bivu (scripts/build-blog.mjs → dist/blog/blog.css).
 * Misma paleta neumórfica que la app (index.css): fondo #e7ecf5 en claro y #232838 en oscuro,
 * superficies del color del fondo con relieve de sombras. Tema según el sistema.
 * Fuentes del sistema (Inter si está instalada): sin descargas ni saltos de maquetación.
 */
:root {
  color-scheme: light dark;
  --bg: #e7ecf5;
  --bg-2: #dde3ee;
  --bg-3: #f3f6fb;
  --text: #0f172a;
  --text-2: #475569;
  --muted: #55647a;
  --link: #6d28d9;
  --link-hover: #5b21b6;
  --focus: #7c3aed;
  --shade: rgba(158, 172, 196, 0.55);
  --light: rgba(255, 255, 255, 0.95);
  --rim: rgba(255, 255, 255, 0.65);
  --brand-a: #2563eb;
  --brand-b: #7e22ce;
  --draft: #92400e;
  --surface: linear-gradient(145deg, var(--bg-3) 0%, var(--bg-2) 100%);
  --raised: 6px 6px 14px var(--shade), -6px -6px 14px var(--light);
  --raised-sm: 3px 3px 7px var(--shade), -3px -3px 7px var(--light);
  --inset: inset 3px 3px 7px var(--shade), inset -3px -3px 7px var(--light);
  --radius: 1.125rem;
  --font: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #232838;
    --bg-2: #1d2230;
    --bg-3: #293043;
    --text: #f8fafc;
    --text-2: #cbd5e1;
    --muted: #94a3b8;
    --link: #c4b5fd;
    --link-hover: #ddd6fe;
    --focus: #c4b5fd;
    --shade: rgba(5, 7, 13, 0.7);
    --light: rgba(255, 255, 255, 0.06);
    --rim: rgba(255, 255, 255, 0.04);
    --draft: #fcd34d;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 1rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.7;
  overflow-wrap: break-word;
}

a { color: var(--link); text-underline-offset: 0.15em; }
a:hover { color: var(--link-hover); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--bg);
  color: var(--text);
  border-radius: 999px;
  box-shadow: var(--raised);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

.wrap {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 16px;
}
@media (min-width: 640px) { .wrap { padding: 0 24px; } }
/* Artículo: columna de lectura centrada (~70 caracteres por línea). */
.wrap-article { max-width: calc(46rem + 48px); }

/* ── Cabecera ─────────────────────────────────────────────────────────── */
.site-header { padding: 0.75rem 0; }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 3rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-mark { display: block; width: 32px; height: 32px; }
.brand-text {
  font-size: 24px;
  line-height: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  background: linear-gradient(to right, #3b82f6, #9333ea, #ec4899);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.25rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav a:not(.btn) {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.5rem 0.25rem;
}
.site-nav a:not(.btn):hover,
.site-nav a[aria-current="page"] { color: var(--text); }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; }
@media (max-width: 479px) { .hide-xs { display: none; } }

/* ── Botones (btn-primary / btn-secondary de la app) ──────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: box-shadow 0.15s ease, filter 0.15s ease;
}
.btn-sm { min-height: 2.5rem; padding: 0.45rem 1rem; font-size: 0.875rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand-a) 0%, var(--brand-b) 100%);
  color: #fff;
  box-shadow: var(--raised-sm), 0 6px 18px rgba(99, 102, 241, 0.28);
}
.btn-primary:hover { color: #fff; filter: brightness(1.08); }
.btn-primary:active { box-shadow: inset 3px 3px 8px rgba(0, 0, 0, 0.35); }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--rim);
  box-shadow: var(--raised-sm);
}
.btn-secondary:hover { color: var(--link); box-shadow: var(--raised); }
.btn-secondary:active { background: var(--bg); box-shadow: var(--inset); }

/* ── Estructura de página ─────────────────────────────────────────────── */
main { display: block; }
main:focus { outline: none; }

.breadcrumbs { margin: 0.5rem 0 1.25rem; font-size: 0.875rem; color: var(--muted); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li:not(:last-child)::after { content: "›"; margin-left: 0.35rem; color: var(--muted); }
.breadcrumbs a { color: var(--text-2); }
.breadcrumbs [aria-current] {
  color: var(--muted);
  display: inline-block;
  max-width: 28ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}

h1, h2, h3, h4 { line-height: 1.25; color: var(--text); letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.6rem); margin: 0 0 0.75rem; font-weight: 800; }
.lead { font-size: 1.15rem; color: var(--text-2); margin: 0 0 1rem; }
.meta { font-size: 0.875rem; color: var(--muted); margin: 0; }

.page-header { max-width: 46rem; margin-bottom: 2rem; }

/* ── Tarjetas de artículos ────────────────────────────────────────────── */
.cards {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 720px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.card {
  background: var(--surface);
  border: 1px solid var(--rim);
  border-radius: var(--radius);
  box-shadow: var(--raised);
  padding: 1.25rem 1.25rem 1.1rem;
}
.card-title { font-size: 1.2rem; margin: 0 0 0.5rem; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--link); text-decoration: underline; }
.card-text { margin: 0 0 0.75rem; color: var(--text-2); font-size: 0.975rem; line-height: 1.6; }

.badge {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.4rem;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  box-shadow: var(--inset);
}
.badge-draft { color: var(--draft); }

.empty {
  max-width: 46rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--inset);
  color: var(--text-2);
}
.empty p { margin: 0 0 0.5rem; }
.empty p:last-child { margin-bottom: 0; }

/* ── Artículo ─────────────────────────────────────────────────────────── */
.article { max-width: 46rem; }
.article-header { margin-bottom: 1.5rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.tags li {
  padding: 0.15rem 0.7rem;
  border-radius: 999px;
  box-shadow: var(--inset);
  font-size: 0.8125rem;
  color: var(--text-2);
}
.draft-notice {
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--inset);
  color: var(--draft);
  font-size: 0.9375rem;
}

.toc {
  margin: 0 0 2rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--inset);
}
.toc-title { margin: 0 0 0.5rem; font-weight: 700; color: var(--text); }
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { margin: 0.2rem 0; }

.prose > :first-child { margin-top: 0; }
.prose h2 { font-size: 1.5rem; margin: 2.25rem 0 0.75rem; }
.prose h3 { font-size: 1.2rem; margin: 1.75rem 0 0.5rem; }
.prose h4 { font-size: 1.05rem; margin: 1.5rem 0 0.5rem; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose .table-wrap, .prose pre { margin: 0 0 1.1rem; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin: 0.3rem 0; }
.prose li > ul, .prose li > ol { margin: 0.3rem 0 0; }
/* Listas de comprobación ("- [ ]"): casilla decorativa en lugar de la viñeta. */
.prose ul > li:has(> .task-box, > p:first-child > .task-box) { list-style: none; }
.task-box {
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: 0.5em;
  vertical-align: -0.15em;
  border-radius: 4px;
  box-shadow: var(--inset);
  border: 1px solid var(--shade);
}
.task-box.is-checked { background: var(--link); }
.prose strong { color: var(--text); }
.prose hr { border: 0; height: 1px; background: var(--rim); box-shadow: 0 1px 0 var(--shade); margin: 2rem 0; }
.prose blockquote {
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius);
  box-shadow: var(--inset);
  color: var(--text-2);
}
.prose blockquote > :last-child { margin-bottom: 0; }
.prose code {
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 6px;
  background: var(--bg-2);
}
.prose pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: var(--radius);
  box-shadow: var(--inset);
}
.prose pre code { background: none; padding: 0; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius); }

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--inset);
  -webkit-overflow-scrolling: touch;
}
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; line-height: 1.5; }
.table-wrap th, .table-wrap td { padding: 0.6rem 0.85rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--shade); }
.table-wrap th { color: var(--text); font-weight: 700; }
.table-wrap tr:last-child td { border-bottom: 0; }
@media (max-width: 639px) { .table-wrap table { min-width: 34rem; } }

.disclaimer { margin: 2rem 0 0; font-size: 0.875rem; color: var(--muted); }

.sources { margin-top: 2rem; }
.sources h2 { font-size: 1.25rem; margin: 0 0 0.75rem; }
.sources ul { margin: 0; padding-left: 1.2rem; font-size: 0.9375rem; line-height: 1.55; }
.sources li { margin: 0.5rem 0; }
.source-host { color: var(--muted); font-size: 0.8125rem; white-space: nowrap; }

/* ── Llamada a la acción ──────────────────────────────────────────────── */
.cta {
  max-width: 46rem;
  margin: 2.5rem 0 0;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--rim);
  border-radius: 1.5rem;
  box-shadow: var(--raised);
}
.cta h2 { font-size: 1.35rem; margin: 0 0 0.5rem; }
.cta p { margin: 0 0 1rem; color: var(--text-2); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0; }
.cta .cta-actions { margin: 0; }

.related { margin-top: 3rem; }
.related h2 { font-size: 1.35rem; margin: 0 0 1rem; }
.related .card-title { font-size: 1.1rem; }

/* ── Pie ──────────────────────────────────────────────────────────────── */
.site-footer {
  margin-top: 3.5rem; /* separación con el contenido (main usa .wrap, que fija sus márgenes) */
  padding: 2rem 0 2.5rem;
  font-size: 0.875rem;
  color: var(--text-2);
  box-shadow: inset 0 1px 0 var(--rim), inset 0 2px 0 var(--shade);
}
.footer-inner p { margin: 0 0 0.75rem; }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; list-style: none; }
.site-footer a, .link-button { color: var(--text-2); }
.site-footer a:hover, .link-button:hover { color: var(--link); }
.link-button {
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  cursor: pointer;
}
[hidden] { display: none !important; }

/* ── Aviso de cookies (consent.js) ────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  padding: 12px;
  pointer-events: none;
}
.cookie-inner {
  pointer-events: auto;
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--rim);
  border-radius: 1.25rem;
  box-shadow: var(--raised), 0 18px 40px rgba(0, 0, 0, 0.25);
}
.cookie-title { font-size: 1rem; margin: 0 0 0.25rem; }
.cookie-text, .cookie-status { margin: 0 0 0.75rem; font-size: 0.875rem; line-height: 1.55; color: var(--text-2); }
.cookie-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.cookie-actions .btn { width: 100%; }
.cookie-actions .btn-secondary { grid-column: 1 / -1; }
@media (min-width: 640px) {
  .cookie-banner { padding: 16px; }
  .cookie-actions { grid-template-columns: repeat(3, 1fr); }
  .cookie-actions .btn-secondary { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header nav, .cta, .related, .cookie-banner, .skip-link, .toc { display: none !important; }
  body { background: #fff; color: #000; }
  .card, .table-wrap, .prose blockquote { box-shadow: none; border: 1px solid #ccc; }
  .prose a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}