/* Blog de FiltraIA Talentos — misma estética de filtra.dev (oct-2026).
   Hoja común para el índice y todos los artículos (HTML estático). */

:root {
  --night: #050d16;
  --raised: #0b1a29;
  --glass: rgba(10, 22, 35, 0.92);
  --line: rgba(255, 255, 255, 0.09);
  --fg: #eaf2f8;
  --fg-2: rgba(234, 242, 248, 0.72);
  --muted: rgba(234, 242, 248, 0.52);
  --celeste: #28bcfd;
  --celeste-hi: #5fd0ff;
  --celeste-soft: #9be3ff;
  --primary: var(--celeste);
  --display: "Manrope", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--night);
  color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
/* Fondo: aurora que deriva + malla tenue. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(40vw 34vw at 82% 8%, rgba(40, 188, 253, 0.16), transparent 70%),
    radial-gradient(36vw 30vw at 6% 40%, rgba(30, 79, 216, 0.14), transparent 70%),
    radial-gradient(30vw 26vw at 60% 96%, rgba(15, 139, 141, 0.12), transparent 70%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
@keyframes blog-drift {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-4vw, 3vh, 0) scale(1.08); }
}
/* La constelación va en una capa propia (z 0) y el contenido encima (z 1).
   Con z-index negativo, Chrome dejaba la página en negro al desplazarse. */
.fx-stars { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: 0.55; }
main, .post-layout, .site-footer { position: relative; z-index: 1; }
/* En los artículos manda el texto: constelación más tenue. */
body:has(.post-layout) .fx-stars, body:has(article) .fx-stars { opacity: 0.25; }

a { color: var(--celeste); text-underline-offset: 3px; }
a:hover { color: var(--celeste-hi); }
::selection { background: rgba(40, 188, 253, 0.35); color: #fff; }

/* ---------- Menú ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 4rem;
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  background: rgba(5, 13, 22, 0.78);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.site-header .inner { width: 100%; max-width: 1280px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.logo-link img { height: 2rem; width: auto; display: block; }
.nav-links { display: none; align-items: center; gap: 1.75rem; }
.nav-links a { color: rgba(255, 255, 255, 0.7); text-decoration: none; font-size: 0.85rem; font-weight: 500; transition: color 0.15s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; }
.nav-actions { display: flex; align-items: center; gap: 0.5rem; }
@media (min-width: 900px) { .nav-links { display: flex; } }
@media (max-width: 520px) { .nav-actions .btn-outline { display: none; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 2.25rem;
  padding: 0 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.2s, background-color 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-outline { border: 1px solid rgba(255, 255, 255, 0.18); color: #fff; }
.btn-outline:hover { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.btn-primary { background: var(--celeste); color: #041320; box-shadow: 0 10px 30px -10px rgba(40, 188, 253, 0.7); }
.btn-primary:hover { background: var(--celeste-hi); color: #041320; }

/* ---------- Índice ---------- */
main { max-width: 760px; margin: 0 auto; padding: 2.5rem 1.25rem 5rem; }
main.wide { max-width: 1180px; }

.hero { position: relative; padding: 3rem 0 2.5rem; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center; }
.hero-art { display: none; }
@media (min-width: 900px) {
  .hero { padding: 4.5rem 0 3.5rem; }
  .hero-grid { grid-template-columns: 1.2fr 0.8fr; gap: 3rem; }
  .hero-art { display: block; }
}
.hero-art svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 30px 60px rgba(40, 188, 253, 0.25)); }
@media (prefers-reduced-motion: no-preference) {
  .hero-art .flota { animation: flotar 5s ease-in-out infinite; }
  .hero-art .flota-2 { animation-delay: 0.8s; }
  .hero-art .flota-3 { animation-delay: 1.6s; }
  @keyframes flotar { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
}
.hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celeste-soft);
  margin-bottom: 1.4rem;
}
.hero .badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--celeste); box-shadow: 0 0 12px var(--celeste); }
.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.5rem, min(1.4rem + 4vw, 9svh), 5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0 0 1.4rem;
  text-wrap: balance;
}
.grad, .hero h1 .grad {
  background: linear-gradient(92deg, #28bcfd 0%, #7fd8ff 45%, #e6f7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .sub { font-size: 1.1rem; color: var(--fg-2); max-width: 54ch; margin: 0; }
.search-wrap { max-width: 460px; margin: 2rem 0 0; }
#blog-search {
  width: 100%;
  height: 3.1rem;
  padding: 0 1.25rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--fg);
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#blog-search:focus { outline: none; border-color: rgba(40, 188, 253, 0.6); box-shadow: 0 0 0 4px rgba(40, 188, 253, 0.14); }
#blog-search::placeholder { color: var(--muted); }

.section-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--celeste-soft);
  margin: 3rem 0 1rem;
}
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.filter-pill {
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(10, 22, 35, 0.6);
  color: var(--fg-2);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-pill:hover { border-color: rgba(40, 188, 253, 0.5); color: #fff; }
.filter-pill.active { background: var(--celeste); border-color: var(--celeste); color: #041320; }
.no-results { display: none; text-align: center; color: var(--muted); padding: 2rem 0; }

/* Tarjetas de artículos: en grilla en el índice. */
main.wide { --cols: 1; }
@media (min-width: 720px) { main.wide .post-card:not(.featured) { } }
.post-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  margin-bottom: 1rem;
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--glass);
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.35s cubic-bezier(0.2, 0.75, 0.15, 1), border-color 0.3s, box-shadow 0.3s;
}
.post-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 0%), rgba(40, 188, 253, 0.14), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.post-card:hover { transform: translateY(-4px); border-color: rgba(40, 188, 253, 0.45); box-shadow: 0 30px 60px -30px rgba(40, 188, 253, 0.5); color: inherit; }
.post-card:hover::before { opacity: 1; }
.post-card .card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.8rem; }
.post-card .read-time { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.post-card h2 { font-family: var(--display); font-weight: 700; font-size: 1.2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.5rem; color: #fff; }
.post-card p { color: var(--fg-2); margin: 0; font-size: 0.92rem; }
.post-card.featured {
  padding: 2.2rem 2.2rem;
  margin: 0.5rem 0 1rem;
  border-color: rgba(40, 188, 253, 0.4);
  background: linear-gradient(150deg, rgba(40, 188, 253, 0.14), rgba(10, 22, 35, 0.9) 55%);
}
.post-card.featured h2 { font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.2rem); letter-spacing: -0.03em; max-width: 26ch; }
.post-card.featured::after {
  content: "Destacado";
  position: absolute;
  top: 1.1rem;
  right: 1.2rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #041320;
  background: var(--celeste);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}
.tag-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  letter-spacing: 0.01em;
}

/* ---------- Artículo ---------- */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 100;
  background: linear-gradient(90deg, #28bcfd, #9be3ff);
  box-shadow: 0 0 12px rgba(40, 188, 253, 0.7);
  transition: width 0.1s;
}
.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 3.5rem;
  align-items: start;
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}
@media (max-width: 900px) { .post-layout { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding-top: 2rem; } }
.breadcrumbs { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.75rem; }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--celeste); }
.breadcrumbs .sep { margin: 0 0.5rem; opacity: 0.5; }

article h1, main > h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.1rem, min(1.3rem + 3vw, 7svh), 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}
.post-byline { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem; color: var(--muted); font-size: 0.85rem; margin-bottom: 2.25rem; }
.post-byline .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }
.meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 2rem; }

article, main { font-size: 1.05rem; }
article p, article li, main p, main li { color: var(--fg-2); line-height: 1.78; }
article strong, main strong { color: #fff; }
article h2, main > h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.45rem, 1.1rem + 1.1vw, 2rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: #fff;
  margin: 2.75rem 0 0.9rem;
  scroll-margin-top: 5.5rem;
}
article h3, main > h3 { font-family: var(--display); font-weight: 700; color: #fff; margin: 2rem 0 0.6rem; }
article ul, article ol { padding-left: 1.3rem; }
article li::marker { color: var(--celeste); }
article blockquote { margin: 1.75rem 0; padding: 1.1rem 1.4rem; border-left: 2px solid var(--celeste); background: var(--glass); border-radius: 0 16px 16px 0; color: var(--fg); }
article hr { border: 0 !important; height: 1px; background: var(--line); margin: 2.75rem 0 1.75rem !important; }
article table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92rem; background: rgb(9, 19, 30); border-radius: 16px; overflow: hidden; }
article th, article td { padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--line); text-align: left; }
article th { color: #fff; background: rgb(14, 28, 43); }

/* Llamado a la acción dentro del artículo (venía con estilos en línea). */
.inline-cta {
  border: 1px solid rgba(40, 188, 253, 0.4) !important;
  background: linear-gradient(150deg, rgba(40, 188, 253, 0.16), rgba(10, 22, 35, 0.92) 60%) !important;
  border-radius: 24px !important;
  padding: 1.5rem 1.6rem !important;
  margin: 2rem 0 !important;
}
.inline-cta p { font-family: var(--display); font-weight: 700; font-size: 1.15rem !important; color: #fff !important; margin: 0 0 1rem !important; }
.inline-cta a {
  display: inline-flex !important;
  align-items: center;
  height: 2.6rem;
  padding: 0 1.3rem !important;
  border-radius: 999px !important;
  background: var(--celeste) !important;
  color: #041320 !important;
  font-size: 0.85rem !important;
  box-shadow: 0 12px 30px -12px rgba(40, 188, 253, 0.8);
}

/* Índice lateral */
.toc-sidebar { position: sticky; top: 5.5rem; }
.toc-card, .toc-cta, .toc-mobile {
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: 20px;
  padding: 1.3rem;
  margin-bottom: 1rem;
}
.toc-title { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--celeste-soft); margin: 0 0 0.9rem; }
.toc-sidebar ul, .toc-mobile ul { list-style: none; padding: 0; margin: 0; }
.toc-sidebar li { margin-bottom: 0.6rem; }
.toc-sidebar a { display: block; font-size: 0.85rem; line-height: 1.4; color: var(--fg-2); text-decoration: none; padding-left: 0.75rem; border-left: 2px solid transparent; transition: color 0.2s, border-color 0.2s; }
.toc-sidebar a:hover, .toc-sidebar a.active { color: #fff; border-left-color: var(--celeste); }
.toc-cta p { font-size: 0.88rem; margin: 0 0 0.8rem; color: var(--fg); }
.toc-cta a.btn-small { display: inline-flex; align-items: center; height: 2.2rem; padding: 0 1rem; border-radius: 999px; background: var(--celeste); color: #041320; font-size: 0.78rem; font-weight: 600; text-decoration: none; }
.toc-mobile { display: none; }
@media (max-width: 900px) {
  .toc-sidebar { display: none; }
  .toc-mobile { display: block; padding: 1rem 1.2rem; margin-bottom: 1.75rem; }
  .toc-mobile summary { font-size: 0.9rem; font-weight: 600; cursor: pointer; }
  .toc-mobile ul { margin-top: 0.8rem; }
  .toc-mobile li { margin-bottom: 0.5rem; }
  .toc-mobile a { font-size: 0.86rem; color: var(--fg-2); text-decoration: none; }
}

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--night); color: var(--muted); font-size: 0.88rem; }
.site-footer .foot-inner { max-width: 1280px; margin: 0 auto; padding: 3.5rem 1.25rem 2rem; display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 760px) { .site-footer .foot-inner { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-footer img { height: 1.9rem; width: auto; }
.site-footer p { color: var(--muted); margin: 0.9rem 0 0; max-width: 32ch; }
.site-footer h4 { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255, 255, 255, 0.4); margin: 0 0 1rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
.site-footer a { color: var(--fg-2); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .social { display: flex; gap: 0.6rem; margin-top: 1.1rem; }
.site-footer .social a { display: inline-flex; align-items: center; justify-content: center; width: 2.2rem; height: 2.2rem; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.15); color: rgba(255, 255, 255, 0.7); }
.site-footer .social a:hover { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.site-footer .foot-bottom { max-width: 1280px; margin: 0 auto; padding: 1.4rem 1.25rem 2rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; font-size: 0.8rem; color: rgba(255, 255, 255, 0.42); }

/* ---------- Entrada al aparecer ---------- */
.fx-js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s cubic-bezier(0.2, 0.75, 0.15, 1), transform 0.8s cubic-bezier(0.2, 0.75, 0.15, 1); }
.fx-js .reveal.in { opacity: 1; transform: none; }
.fx-js .reveal.in.done { transition: none; }
/* "backwards": al terminar no queda ninguna transformación aplicada (evita capas extra). */
.fade-in { animation: fadeInUp 0.7s cubic-bezier(0.2, 0.75, 0.15, 1) backwards; }
.fade-in-delay-1 { animation-delay: 0.08s; }
.fade-in-delay-2 { animation-delay: 0.16s; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  body::before, .fade-in { animation: none; }
  .fx-js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Grilla del índice ---------- */
.filters + div { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); gap: 1rem; align-items: stretch; }
.filters + div .post-card { margin: 0; }
.filters + div .no-results { grid-column: 1 / -1; }

/* ---------- Artículos publicados desde el panel (api/blog.ts) ---------- */
.back { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); text-decoration: none; }
.back:hover { color: var(--celeste); }
.article-head { margin: 1.75rem 0 2.25rem; }
.article-head h1 { margin-top: 1rem; }
.excerpt { color: var(--fg-2); font-size: 1.2rem; line-height: 1.6; margin: 0 0 1.1rem; }
.rule { height: 1px; background: var(--line); margin: 0 0 2.25rem; }
.faq { margin-top: 3.25rem; padding-top: 2.25rem; border-top: 1px solid var(--line); }
.faq h2 { margin-top: 0; }
.faq-item { background: var(--glass); border: 1px solid var(--line); border-radius: 20px; padding: 1.2rem 1.3rem; margin-bottom: 0.8rem; }
.faq-item h3 { margin: 0 0 0.4rem; font-size: 1rem; }
.faq-item p { margin: 0; font-size: 0.95rem; }
main > .cta {
  margin-top: 3.25rem;
  padding: 2rem;
  border-radius: 28px;
  text-align: center;
  border: 1px solid rgba(40, 188, 253, 0.4);
  background: linear-gradient(150deg, rgba(40, 188, 253, 0.16), rgba(10, 22, 35, 0.92) 60%);
}
main > .cta strong { display: block; font-family: var(--display); font-size: 1.4rem; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
main > .cta p { color: var(--fg-2); margin: 0 0 1.3rem; }
main > .cta a { display: inline-flex; align-items: center; height: 2.9rem; padding: 0 1.5rem; border-radius: 999px; background: var(--celeste); color: #041320; font-weight: 600; text-decoration: none; box-shadow: 0 12px 30px -12px rgba(40, 188, 253, 0.8); }