/* ============================================================
   PIEZA · MATRIZ EXPLORADORA (fractal del tiempo)
   Plantilla: CONTENIDO (nivel 3) inyectada dentro de LAB y EXPLORAR.
   Color de pieza: gris carbón neutro (#6b6b66) — la matriz es una
   herramienta del proyecto, no pertenece a ninguna sección.
   El botón final usa el negro tinta del sitio.
   ============================================================ */

.seccion-matriz {
  --seccion: #6b6b66;
  --seccion-intenso: #4a4a45;
  --azul-texto: #1a3a6e;
  --muted: rgba(10, 10, 10, 0.55);
  --linea: rgba(10, 10, 10, 0.1);
  font-family: "IBM Plex Sans Condensed", sans-serif;
  color: var(--ink, #0a0a0a);
  padding: 1.5rem clamp(1.5rem, 4vw, 2.5rem) 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
  line-height: 1.55;
}

/* ============================================================
   HERO
   ============================================================ */
.m-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
}
@media (max-width: 720px) {
  .m-hero { grid-template-columns: 1fr; }
}

.m-chip {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  background: var(--seccion);
  padding: 0.3rem 0.65rem;
  margin-bottom: 0.9rem;
}

.m-hero-titulo {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(1.8rem, 3.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
}

.m-hero-lead {
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 1rem;
  font-style: italic;
}

.m-hero-intro {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink);
}

.m-hero-img {
  aspect-ratio: 4 / 3;
  background: #e8e4dc;
  overflow: hidden;
}
.m-hero-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* ============================================================
   BLOQUE DOBLE (reloj)
   ============================================================ */
.m-bloque-doble {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--linea);
}
@media (max-width: 720px) {
  .m-bloque-doble { grid-template-columns: 1fr; }
}

.m-bloque-img {
  aspect-ratio: 1 / 1;
  background: #e8e4dc;
  overflow: hidden;
}
.m-bloque-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.m-bloque-texto p {
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.m-bloque-texto p:last-child { margin-bottom: 0; }
.m-bloque-texto strong {
  font-weight: 700;
  color: var(--azul-texto);
}

/* ============================================================
   TRES PILARES
   ============================================================ */
.m-pilares {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--linea);
}
@media (max-width: 780px) {
  .m-pilares { grid-template-columns: 1fr; gap: 1.8rem; }
}

.m-pilar-img {
  aspect-ratio: 4 / 3;
  background: #e8e4dc;
  overflow: hidden;
  margin-bottom: 0.9rem;
}
.m-pilar-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.m-pilar-titulo {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--seccion);
  display: inline-block;
}

.m-pilar p {
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--muted);
}

/* ============================================================
   FRACTALIDAD (intro de la matriz visual)
   ============================================================ */
.m-fractalidad {
  text-align: center;
  max-width: 680px;
  margin: 3rem auto 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--linea);
}

.m-fractalidad-titulo {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.m-fractalidad-lead {
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 0.8rem;
}
.m-fractalidad-lead strong {
  color: var(--seccion-intenso);
}

.m-fractalidad-intro {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--muted);
}
.m-fractalidad-intro em {
  font-style: italic;
  color: var(--azul-texto);
  font-weight: 600;
}

/* ============================================================
   MATRIZ 3×3 VISUAL
   Esta es la joya visual. El centro (presente/presente) se destaca
   porque "contiene todo".
   ============================================================ */
.m-matriz-wrap {
  max-width: 820px;
  margin: 0 auto 2rem;
}

.m-matriz-etiquetas-top,
.m-matriz-fila {
  display: grid;
  grid-template-columns: 90px 1fr 1fr 1fr;
  gap: 6px;
}

.m-matriz-etiquetas-top {
  margin-bottom: 6px;
}

.m-matriz-fila {
  margin-bottom: 6px;
}
.m-matriz-fila:last-child {
  margin-bottom: 0;
}

.m-etiqueta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-align: center;
  padding: 0.5rem 0;
  color: var(--ink);
  background: transparent;
}
.m-etiqueta-lateral {
  display: flex;
  align-items: center;
  justify-content: center;
}

.m-celda {
  background: #fdfcf7;
  border: 1px solid var(--seccion);
  padding: 0.9rem 0.8rem;
  text-align: center;
  min-height: 90px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background .2s ease, color .2s ease, transform .15s ease;
}
.m-celda:hover {
  background: var(--seccion);
  transform: translateY(-2px);
}
.m-celda:hover .m-celda-titulo,
.m-celda:hover .m-celda-sub {
  color: #fff;
}

.m-celda-centro {
  background: var(--seccion);
  border: 2px solid var(--ink);
  position: relative;
}
.m-celda-centro::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(10, 10, 10, 0.15);
  pointer-events: none;
}
.m-celda-centro:hover {
  background: var(--seccion-intenso);
}

.m-celda-titulo {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.25rem;
  color: var(--ink);
}
.m-celda-centro .m-celda-titulo {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
  color: #fff;
}

.m-celda-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.m-celda-centro .m-celda-sub {
  color: #fff;
  opacity: 0.7;
}

/* Responsive: en móvil la matriz se mantiene 3×3 pero con texto más pequeño */
@media (max-width: 680px) {
  .m-matriz-etiquetas-top,
  .m-matriz-fila {
    grid-template-columns: 60px 1fr 1fr 1fr;
    gap: 4px;
  }
  .m-celda {
    padding: 0.6rem 0.4rem;
    min-height: 70px;
  }
  .m-celda-titulo { font-size: 0.72rem; }
  .m-celda-sub { font-size: 0.54rem; letter-spacing: 0.08em; }
  .m-etiqueta { font-size: 0.6rem; letter-spacing: 0.1em; }
}

/* ============================================================
   NOTA EXPLICATIVA BAJO LA MATRIZ
   ============================================================ */
.m-matriz-nota {
  max-width: 680px;
  margin: 2rem auto 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
  font-style: italic;
}
.m-matriz-nota strong {
  color: var(--ink);
  font-weight: 700;
  font-style: normal;
}

/* ============================================================
   LLAMADA FINAL
   ============================================================ */
.m-llamada {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--linea);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.m-llamada-titulo {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.8rem;
}

.m-llamada-texto {
  max-width: 520px;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--muted);
  margin-bottom: 1.2rem;
}

.seccion-matriz .m-llamada-cta,
.seccion-matriz a.m-llamada-cta {
  display: inline-block;
  background: var(--ink, #0a0a0a) !important;
  color: #fff !important;
  text-decoration: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.88rem 1.7rem;
  transition: background .2s ease, transform .15s ease;
}
.seccion-matriz .m-llamada-cta:hover {
  background: #2a2a28 !important;
  transform: translateY(-2px);
}
.seccion-matriz .m-llamada-cta:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}