/* ============================================================
   componentes.css — componentes de ESCRITORIO
   Mundo heredado de geologiavirtual.com (misma profesora).
   Todo lo responsivo vive en movil.css.

     1. Header
     2. Hero + ocular del microscopio
     3. Accesos rápidos (franja bajo el hero)
     4. Encabezados de sección
     5. Colección: pestañas, chips, tarjeta de roca
     6. Carrusel (componente único)
     7. Visor de fotos (lightbox)
     8. Laboratorio
     9. Acerca de (acordeón)
    10. Acervo (filas de documentos)
    11. Software y enlaces
    12. Video
    13. Footer / contacto
    14. Revelado al scroll
   ============================================================ */

/* ============================================================
   1. HEADER — base de geologiavirtual + marca escrita + hamburguesa
   ============================================================ */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
}

.header-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(10, 10, 28, 0.72), rgba(10, 10, 28, 0.55));
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  transition: background 0.5s ease;
}

.header-bg::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.5) 20%, rgba(118, 75, 162, 0.8) 50%, rgba(102, 126, 234, 0.5) 80%, transparent);
  opacity: 0.5;
  transition: opacity 0.5s ease;
}

.header-scrolled .header-bg { background: rgba(10, 10, 28, 0.96); }
.header-scrolled .header-bg::after { opacity: 1; }

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.marca {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
  color: var(--claro);
}

.marca-escudo {
  height: 46px;
  width: auto;
  padding: 4px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.marca-texto {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.marca-nombre {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.marca-sub {
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--claro-suave);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 550;
  color: #cbd5e1;
  transition: color 0.3s ease, background 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--morado), var(--lavanda));
  transform: translateX(-50%) scaleX(0);
  transition: transform 0.35s var(--ease-out);
}

.nav-link:hover {
  color: var(--claro);
  background: rgba(102, 126, 234, 0.1);
}

.nav-link:hover::after,
.nav-link.activo::after { transform: translateX(-50%) scaleX(1); }
.nav-link.activo { color: #fff; }

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  color: var(--claro);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icono-cerrar { display: none; }
.nav-abierto .nav-toggle .icono-menu { display: none; }
.nav-abierto .nav-toggle .icono-cerrar { display: block; }

/* ============================================================
   2. HERO — fondo de 4 capas de geologiavirtual + ocular
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: 128px 0 0;
  color: var(--claro);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 40%, #16213e 100%);
}

.hero-grid {
  position: absolute;
  inset: -50px;
  background-image:
    linear-gradient(rgba(102, 126, 234, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 126, 234, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  to { transform: translate(50px, 50px); }
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.orb-1 {
  width: 520px; height: 520px;
  top: -160px; right: -120px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.32), rgba(118, 75, 162, 0.22));
  animation: orbFloat1 10s ease-in-out infinite;
}

.orb-2 {
  width: 420px; height: 420px;
  bottom: -140px; left: 2%;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.16), rgba(6, 182, 212, 0.12));
  animation: orbFloat2 12s ease-in-out infinite;
}

/* 🚫 Sin naranja en los orbes (decisión heredada de geologiavirtual) */
.orb-3 {
  width: 300px; height: 300px;
  top: 45%; left: 38%;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.18), rgba(118, 75, 162, 0.14));
  animation: orbFloat3 8s ease-in-out infinite;
}

@keyframes orbFloat1 { 50% { transform: translate(-40px, 40px) scale(1.08); } }
@keyframes orbFloat2 { 50% { transform: translate(50px, -30px) scale(0.92); } }
@keyframes orbFloat3 { 50% { transform: translate(-30px, 30px); } }

.hero-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
  padding-bottom: 72px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 650;
}

.hero-badge svg { width: 16px; height: 16px; }

.badge-unam {
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.32);
  color: #c4b5fd;
}

.badge-coleccion {
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.hero-title {
  font-size: clamp(2.6rem, 5.2vw, 4.1rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.035em;
  margin-bottom: 26px;
}

/* Firma de geologiavirtual: el título con degradado animado (brief fijado) */
.title-gradient {
  display: block;
  background: linear-gradient(135deg, #667eea 0%, #a78bfa 40%, #f472b6 80%, #10b981 100%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 6s ease infinite;
  padding-bottom: 0.1em;   /* sin esto se corta la «g» de Petrología */
}

@keyframes gradientShift {
  50% { background-position: 100% 50%; }
}

.hero-description {
  max-width: 56ch;
  font-size: 1.12rem;
  line-height: 1.75;
  color: rgba(241, 245, 249, 0.8);
  margin-bottom: 40px;
}

.hero-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 28px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 650;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background 0.3s ease, border-color 0.3s ease;
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-marca {
  color: #fff;
  background: var(--grad-marca);
  box-shadow: 0 6px 24px rgba(102, 126, 234, 0.38);
}

.btn-marca:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(102, 126, 234, 0.5);
}

.btn-fantasma {
  color: var(--claro);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.btn-fantasma:hover {
  border-color: rgba(167, 139, 250, 0.55);
  background: rgba(167, 139, 250, 0.1);
  transform: translateY(-3px);
}

/* ---- Ocular del microscopio: campo circular con retícula ----
   Heredero del mapa circular de geologiavirtual. Las fotos reales de
   la colección se funden una tras otra dentro del campo. */

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.ocular {
  position: relative;
  width: min(440px, 100%);
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 18px;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.1), transparent 55%),
    linear-gradient(145deg, #232342, #0d0d1c);
  box-shadow:
    0 40px 80px -20px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 2px 1px rgba(255, 255, 255, 0.12),
    inset 0 -6px 18px rgba(0, 0, 0, 0.6);
}

/* Anillo graduado que gira despacio (como la platina giratoria) */
.ocular-anillo {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: repeating-conic-gradient(rgba(167, 139, 250, 0.55) 0deg 0.6deg, transparent 0.6deg 10deg);
  -webkit-mask: radial-gradient(circle, transparent calc(50% - 10px), #000 calc(50% - 9px));
  mask: radial-gradient(circle, transparent calc(50% - 10px), #000 calc(50% - 9px));
  animation: platina 60s linear infinite;
  pointer-events: none;
}

@keyframes platina { to { transform: rotate(360deg); } }

.ocular-campo {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: #05050d;
  box-shadow: inset 0 0 40px 10px rgba(0, 0, 0, 0.85);
}

.ocular-campo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.12) rotate(-4deg);
  transition: opacity 1.4s ease, transform 7s linear;
}

.ocular-campo img.visible {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* Viñeta interior del ocular */
.ocular-campo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 58%, rgba(5, 5, 13, 0.75) 100%);
  pointer-events: none;
}

.reticula {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.reticula::before,
.reticula::after {
  content: '';
  position: absolute;
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}

.reticula::before { left: 50%; top: 8%; bottom: 8%; width: 1px; }
.reticula::after  { top: 50%; left: 8%; right: 8%; height: 1px; }

.ocular-leyenda {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 40px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.88rem;
  color: var(--claro-suave);
}

.ocular-leyenda strong {
  color: var(--claro);
  font-weight: 700;
}

.punto-vivo {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--verde-claro);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: vivo 2s ease-out infinite;
}

@keyframes vivo {
  70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* ============================================================
   3. ACCESOS RÁPIDOS — franja al pie del hero
   ============================================================ */

.accesos {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 10, 26, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.accesos-lista {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.acceso {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 26px 28px;
  color: var(--claro);
  transition: background 0.35s ease;
}

.acceso + .acceso { border-left: 1px solid rgba(255, 255, 255, 0.08); }

.acceso:hover { background: rgba(102, 126, 234, 0.08); }

.acceso-icono {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(102, 126, 234, 0.14);
  color: #c4b5fd;
}

.acceso-icono svg { width: 22px; height: 22px; }

.acceso-titulo {
  display: block;
  font-size: 1rem;
  font-weight: 750;
  margin-bottom: 2px;
}

.acceso-texto {
  display: block;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--claro-suave);
}

.acceso-flecha {
  width: 20px;
  height: 20px;
  color: var(--lavanda);
  transition: transform 0.35s var(--ease-out);
}

.acceso:hover .acceso-flecha { transform: translateX(4px); }

/* ============================================================
   4. ENCABEZADOS DE SECCIÓN
   ============================================================ */

.seccion-cabeza {
  max-width: 760px;
  margin-bottom: 48px;
}

.seccion-cabeza.centrada {
  margin-inline: auto;
  text-align: center;
}

.seccion-titulo {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--texto);
  margin-bottom: 16px;
}

.seccion-lead {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--texto-suave);
  max-width: 64ch;
}

.seccion-cabeza.centrada .seccion-lead { margin-inline: auto; }

.oscura .seccion-titulo { color: #fff; }
.oscura .seccion-lead { color: var(--claro-suave); }

/* Fondos alternados, como geologiavirtual */
.oscura {
  color: var(--claro);
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 55%, #16213e 100%);
  overflow: hidden;
}

.oscura::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.oscura > .container { position: relative; z-index: 1; }

.clara { background: linear-gradient(180deg, #f8fafc 0%, #fff 100%); }
.blanca { background: #fff; }

/* ============================================================
   5. COLECCIÓN DE ROCAS
   ============================================================ */

.familias {
  display: flex;
  gap: 6px;
  padding: 6px;
  margin-bottom: 28px;
  width: fit-content;
  max-width: 100%;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--linea);
  box-shadow: 0 6px 24px rgba(15, 23, 42, 0.05);
}

.familia-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 13px;
  font-size: 0.97rem;
  font-weight: 650;
  color: var(--texto-suave);
  white-space: nowrap;
  transition: color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.familia-tab .familia-punto {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--acento, var(--morado));
}

.familia-tab .familia-cuenta {
  min-width: 26px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--gris-01);
  color: var(--texto-suave);
  font-variant-numeric: tabular-nums;
}

.familia-tab:hover { color: var(--texto); background: var(--gris-01); }

.familia-tab[aria-selected="true"] {
  color: #fff;
  background: var(--grad-marca);
  box-shadow: 0 6px 18px rgba(102, 126, 234, 0.35);
}

.familia-tab[aria-selected="true"] .familia-punto { background: #fff; }
.familia-tab[aria-selected="true"] .familia-cuenta { background: rgba(255, 255, 255, 0.22); color: #fff; }

.familia-panel[hidden] { display: none; }

.familia-intro {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 18px 32px;
  margin-bottom: 22px;
}

.familia-nombre {
  font-size: 1.6rem;
  font-weight: 850;
  letter-spacing: -0.02em;
  color: var(--texto);
}

.familia-docs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.doc-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--violeta);
  background: rgba(118, 75, 162, 0.08);
  border: 1px solid rgba(118, 75, 162, 0.2);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.doc-chip svg { width: 17px; height: 17px; }
.doc-chip:hover { background: rgba(118, 75, 162, 0.14); border-color: rgba(118, 75, 162, 0.4); }

.subgrupos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.subgrupo-chip {
  min-height: 44px;
  padding: 0 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--texto);
  background: #fff;
  border: 1px solid var(--linea);
  transition: all 0.3s ease;
}

.subgrupo-chip:hover { border-color: var(--acento, var(--morado)); }

.subgrupo-chip[aria-pressed="true"] {
  color: #fff;
  background: var(--texto);
  border-color: var(--texto);
}

.rocas-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.roca-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-radius: var(--r-tarjeta);
  background: #fff;
  border: 1px solid var(--linea);
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
  transition: box-shadow 0.45s var(--ease-out), transform 0.45s var(--ease-out), border-color 0.3s ease;
}

.roca-card:hover {
  transform: translateY(-4px);
  border-color: rgba(102, 126, 234, 0.25);
  box-shadow: 0 22px 50px rgba(102, 126, 234, 0.14);
}

.roca-card[hidden] { display: none; }

.roca-cuerpo {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px 20px;
  flex: 1;
}

.roca-subgrupo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--texto-suave);
}

.roca-subgrupo::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--acento, var(--morado));
}

.roca-nombre {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--texto);
}

.roca-texto {
  font-size: 0.95rem;
  line-height: 1.65;
  color: #475569;
}

.roca-texto.recortado {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.roca-mas {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  margin-top: auto;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--morado);
}

.roca-mas svg { width: 16px; height: 16px; transition: transform 0.3s ease; }
.roca-mas[aria-expanded="true"] svg { transform: rotate(180deg); }

.roca-enlaces {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.sin-resultados {
  padding: 40px;
  text-align: center;
  color: var(--texto-suave);
}

/* ============================================================
   6. CARRUSEL — scroll-snap nativo + flechas + puntos
   Deslizar con el dedo sale gratis; las flechas hacen scrollBy.
   ============================================================ */

.carrusel {
  position: relative;
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 100%);
  isolation: isolate;
}

.carrusel-pista {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  aspect-ratio: 4 / 3;
}

.carrusel-pista::-webkit-scrollbar { display: none; }

.carrusel-slide {
  position: relative;
  flex: 0 0 100%;
  scroll-snap-align: center;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.carrusel-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.35) 100%);
  pointer-events: none;
}

.carrusel-foto {
  width: 100%;
  height: 100%;
  padding: 0;
  cursor: zoom-in;
}

/* 🚨 contain, nunca cover: las fotos de 2010 son chicas y recortarlas
   mutila la muestra (trampa 11 del skill) */
.carrusel-foto img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.carrusel-btn {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(10, 10, 26, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: translateY(-50%);
  opacity: 0;
  transition: opacity 0.3s ease, background 0.3s ease, transform 0.3s var(--ease-out);
}

.carrusel-btn svg { width: 20px; height: 20px; }
.carrusel-btn.prev { left: 12px; }
.carrusel-btn.next { right: 12px; }

.carrusel:hover .carrusel-btn,
.carrusel:focus-within .carrusel-btn { opacity: 1; }

.carrusel-btn:hover { background: rgba(102, 126, 234, 0.6); }
.carrusel-btn:active { transform: translateY(-50%) scale(0.94); }
.carrusel-btn:disabled { opacity: 0 !important; pointer-events: none; }

.carrusel-contador {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  padding: 4px 11px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: #fff;
  background: rgba(10, 10, 26, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.carrusel-puntos {
  position: absolute;
  left: 50%;
  bottom: 10px;
  z-index: 3;
  display: flex;
  transform: translateX(-50%);
  padding: 0 6px;
  border-radius: 30px;
  background: rgba(10, 10, 26, 0.5);
}

/* El punto se ve de 8px, pero su área táctil es de 28px de ancho */
.carrusel-punto {
  position: relative;
  width: 22px;
  height: 26px;
  display: grid;
  place-items: center;
}

.carrusel-punto::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.4);
  transition: transform 0.35s var(--ease-out), background 0.3s ease;
}

.carrusel-punto[aria-current="true"]::before {
  transform: scaleX(2.6);
  background: linear-gradient(90deg, var(--morado), var(--lavanda));
}

.carrusel-pie {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 40px 20px 44px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(5, 5, 13, 0.85));
  pointer-events: none;
}

/* ============================================================
   7. VISOR DE FOTOS (lightbox)
   ============================================================ */

.visor {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background: #05050d;
  color: var(--claro);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}

.visor.abierto { opacity: 1; visibility: visible; }

.visor-barra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
}

.visor-titulo {
  font-size: 1.05rem;
  font-weight: 750;
}

.visor-contador {
  font-size: 0.85rem;
  color: var(--claro-suave);
  font-variant-numeric: tabular-nums;
}

.visor-cerrar,
.visor-btn {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: background 0.3s ease;
  flex-shrink: 0;
}

.visor-cerrar:hover,
.visor-btn:hover { background: rgba(102, 126, 234, 0.5); }

.visor-cerrar svg,
.visor-btn svg { width: 22px; height: 22px; }

.visor-escena {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  min-height: 0;
}

.visor-figura {
  height: 100%;
  min-height: 0;
  display: grid;
  place-items: center;
}

.visor-figura img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  animation: visorEntra 0.45s var(--ease-out);
}

@keyframes visorEntra {
  from { opacity: 0; transform: scale(0.97); }
}

.visor-texto {
  max-width: 820px;
  max-height: 26vh;
  overflow-y: auto;
  margin: 0 auto;
  padding: 16px 24px 24px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--claro-suave);
  text-align: center;
}

.visor-texto:empty { display: none; }

/* ============================================================
   8. LABORATORIO
   ============================================================ */

.lab-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

/* El carrusel acompaña al texto largo del equipo */
#lab-carrusel {
  position: sticky;
  top: 110px;
}

.lab-texto .seccion-cabeza { margin-bottom: 24px; }

.prosa p + p { margin-top: 14px; }

.prosa {
  font-size: 1.02rem;
  line-height: 1.75;
}

.oscura .prosa { color: var(--claro-suave); }

.prosa ul {
  margin: 14px 0;
  display: grid;
  gap: 8px;
}

.prosa li {
  position: relative;
  padding-left: 22px;
}

.prosa li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lavanda);
}

.prosa a {
  color: var(--morado);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.oscura .prosa a { color: #c4b5fd; }

.prosa strong { color: inherit; font-weight: 700; }
.oscura .prosa strong { color: var(--claro); }

.lab-carrusel {
  border-radius: var(--r-carrusel);
  overflow: hidden;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.lab-carrusel .carrusel-pista { aspect-ratio: 4 / 3; }

/* ============================================================
   9. ACERCA DE — acordeón
   ============================================================ */

.acerca-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: start;
}

.acerca-layout .seccion-cabeza {
  position: sticky;
  top: 110px;
  margin-bottom: 0;
}

.acordeon {
  border-top: 1px solid var(--linea);
}

.acordeon-item {
  border-bottom: 1px solid var(--linea);
}

.acordeon-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 16px 4px;
  font-size: 1.2rem;
  font-weight: 750;
  color: var(--texto);
  cursor: pointer;
  list-style: none;
}

.acordeon-item summary::-webkit-details-marker { display: none; }

.acordeon-signo {
  position: relative;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gris-01);
  border: 1px solid var(--linea);
  transition: background 0.3s ease, transform 0.4s var(--ease-out);
}

.acordeon-signo::before,
.acordeon-signo::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--violeta);
  transform: translate(-50%, -50%);
}

.acordeon-signo::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform 0.4s var(--ease-out); }

.acordeon-item[open] .acordeon-signo { background: var(--grad-marca); border-color: transparent; }
.acordeon-item[open] .acordeon-signo::before,
.acordeon-item[open] .acordeon-signo::after { background: #fff; }
.acordeon-item[open] .acordeon-signo::after { transform: translate(-50%, -50%) rotate(0deg); }

.acordeon-item summary:hover { color: var(--violeta); }

.acordeon-cuerpo {
  padding: 0 4px 28px;
  color: #475569;
}

/* ============================================================
   10. ACERVO — filas de documentos, no tarjetas
   ============================================================ */

.acervo-grupos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px 56px;
}

.acervo-grupo-titulo {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 2px solid var(--texto);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--texto);
}

.acervo-grupo-titulo span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--texto-suave);
  font-variant-numeric: tabular-nums;
}

.doc-fila {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 60px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--linea);
  color: var(--texto);
  transition: background 0.25s ease;
}

.doc-fila .doc-nombre { transition: transform 0.35s var(--ease-out); }

.doc-fila:hover { background: var(--gris-01); }
.doc-fila:hover .doc-nombre { transform: translateX(6px); }

.doc-tipo {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--tipo-color, var(--morado));
}

.doc-tipo[data-tipo="PDF"] { --tipo-color: #dc2626; }
.doc-tipo[data-tipo="XLS"] { --tipo-color: #059669; }
.doc-tipo[data-tipo="PPT"] { --tipo-color: #ea580c; }
.doc-tipo[data-tipo="ZIP"] { --tipo-color: #475569; }
.doc-tipo[data-tipo="WEB"] { --tipo-color: #2563eb; }
.doc-tipo[data-tipo="VID"] { --tipo-color: #7c3aed; }
.doc-tipo[data-tipo="LIB"] { --tipo-color: #0f766e; }
.doc-fila.sin-enlace:hover { background: none; }
.doc-fila.sin-enlace:hover .doc-nombre { transform: none; }

.doc-nombre {
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.4;
}

.doc-meta {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--texto-suave);
}

.doc-abrir {
  width: 20px;
  height: 20px;
  color: var(--texto-suave);
  transition: color 0.3s ease, transform 0.35s var(--ease-out);
}

.doc-fila:hover .doc-abrir { color: var(--morado); transform: translate(2px, -2px); }

/* ============================================================
   11. SOFTWARE Y ENLACES
   ============================================================ */

.software-lista {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 56px;
  margin-bottom: 88px;
}

.software-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.software-img {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.06);
}

.software-nombre {
  font-size: 1.1rem;
  font-weight: 750;
  color: var(--claro);
  margin-bottom: 6px;
}

.software-item .prosa { font-size: 0.95rem; }

.software-nombre a,
.seccion-lead a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.software-nombre a:hover { color: #c4b5fd; }

.enlaces-grupos {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px 48px;
}

.enlaces-grupo-titulo {
  font-size: 0.95rem;
  font-weight: 750;
  color: #c4b5fd;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(167, 139, 250, 0.3);
  margin-bottom: 6px;
}

.enlace {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.95rem;
  color: var(--claro);
  transition: color 0.25s ease;
}

.enlace svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--claro-suave);
  transition: transform 0.3s var(--ease-out), color 0.25s ease;
}

.enlace:hover { color: #c4b5fd; }
.enlace:hover svg { color: #c4b5fd; transform: translate(2px, -2px); }

/* ============================================================
   12. VIDEO — el iframe solo carga al hacer clic
   ============================================================ */

.video-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
  align-items: center;
}

.video-marco {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-carrusel);
  overflow: hidden;
  background: #000;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.video-marco iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  display: grid;
  place-items: center;
  color: #fff;
}

.video-poster img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  transition: opacity 0.4s ease, transform 0.8s var(--ease-out);
}

.video-poster:hover img { opacity: 0.85; transform: scale(1.03); }

.video-play {
  position: relative;
  width: 84px;
  height: 84px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--grad-marca);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.55);
  transition: transform 0.4s var(--ease-out);
}

.video-play svg { width: 30px; height: 30px; margin-left: 4px; }
.video-poster:hover .video-play { transform: scale(1.08); }

/* ============================================================
   13. FOOTER / CONTACTO
   ============================================================ */

.footer {
  position: relative;
  color: var(--claro-suave);
  background: #07070f;
  padding: 88px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .marca { margin-bottom: 20px; }

.footer-titulo {
  font-size: 0.9rem;
  font-weight: 750;
  color: var(--claro);
  margin-bottom: 16px;
}

.footer-dato {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 6px 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-dato svg {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
  color: var(--lavanda);
}

.footer-dato a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-block: -12px;
  color: var(--claro);
  text-decoration: underline;
  text-decoration-color: rgba(167, 139, 250, 0.5);
  text-underline-offset: 4px;
}

.footer-dato a:hover { color: #c4b5fd; }

.footer-links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  color: var(--claro-suave);
  transition: color 0.25s ease;
}

.footer-links a:hover { color: #fff; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
  padding-top: 28px;
  font-size: 0.85rem;
}

/* ============================================================
   14. REVELADO AL SCROLL — visible por defecto (lección de
   geologiavirtual: si el JS falla, el contenido se ve igual)
   ============================================================ */

.por-revelar {
  opacity: 0;
  transform: translateY(28px);
}

.revelado {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--ease-out), transform 0.9s var(--ease-out);
}