/* ========== Reset/Base ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
  background: #f3f6fb;
  color: #0f172a;
}
a{ text-decoration: none; color: inherit; }
img{ max-width: 100%; display: block; }
.container{ width: min(1120px, 92%); margin-inline: auto; }

/* ========== HEADER (Azul elegante) ========== */
.site-header{
  background: linear-gradient(135deg, #0b2a6f 0%, #0a4ea3 60%, #083a7a 100%);
  color: #fff;
  box-shadow: 0 14px 35px rgba(2, 6, 23, 0.25);
}

.header-hero{
  padding: 22px 0 14px;
}

/* Branding centrado */
.brand{
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 10px;
}

.logo-img{
  width: 78px;
  height: 78px;
  object-fit: contain;
  border-radius: 18px;
  padding: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  box-shadow: 0 18px 40px rgba(2, 6, 23, 0.25);
}

.titulo-principal{
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: .2px;
  line-height: 1.2;
}
.titulo-principal span{
  display: block;
  margin-top: 6px;
  font-size: 1.05rem;
  font-weight: 700;
  opacity: .95;
}

/* Animación suave */
@keyframes fadeUp{
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in{
  animation: fadeUp .75s ease both;
}

/* ========== NAV ========== */
.main-nav{
  border-top: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
}

.nav-inner{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 0;
}

/* Menu */
.menu-principal{
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.menu-principal > li{ position: relative; }

.menu-principal > li > a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 800;
  color: #fff;
  transition: background .15s ease, transform .15s ease;
}
.menu-principal > li > a:hover,
.menu-principal > li > a:focus-visible{
  background: rgba(255,255,255,0.16);
  outline: none;
}

/* Dropdown */
.has-dropdown > .dropdown-link i{ font-size: .85rem; opacity: .95; }

.submenu{
  list-style: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 380px;
  background: #fff;
  color: #0f172a;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 14px;
  box-shadow: 0 22px 60px rgba(2, 6, 23, 0.22);
  padding: 10px;
  display: none;
  z-index: 50;
}

/* Mostrar al pasar el mouse o con teclado */
.has-dropdown:hover > .submenu,
.has-dropdown:focus-within > .submenu{ display: block; }

/* Submenu items */
.submenu a{
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 700;
}
.submenu a:hover,
.submenu a:focus-visible{
  background: rgba(15, 23, 42, 0.06);
  outline: none;
}

.submenu-title{
  font-weight: 900;
  padding: 10px 12px;
  color: #0b2a6f;
  text-transform: uppercase;
  font-size: .85rem;
  letter-spacing: .4px;
}

.submenu-separator{
  height: 1px;
  background: rgba(15, 23, 42, 0.12);
  margin: 8px 0;
}

/* Scroll/barra cuando es largo */
.submenu-scroll{
  max-height: 320px;
  overflow: auto;
}

/* ========== MAIN ========== */
.main-space{ padding: 18px 0 26px; }

.card{
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  padding: 18px;
  margin: 16px 0;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.06);
}

.section-title{
  font-size: 1.25rem;
  font-weight: 950;
  margin-bottom: 10px;
}

.lead{ color: #334155; }

.lista-competencias{
  margin-top: 10px;
  padding-left: 18px;
  color: #334155;
}
.lista-competencias li{ margin: 8px 0; }

.note{
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(10, 78, 163, 0.07);
  border: 1px solid rgba(10, 78, 163, 0.16);
  color: #0f172a;
}

/* Imágenes */
/*.grid-imagenes{
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  
}
  */
  
.grid-imagenes{
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* 2 columnas */
  gap: 16px;
}

/* Contenedor de la imagen */
.img-card{
  width: 100%;
  height: 260px;           /* MISMO ALTO PARA TODAS */
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

/* Imagen */
.img-card img{
  width: 100%;
  height: 100%;
  object-fit: cover;       /* recorta sin deformar */
}


/* Videos responsivos */
.videos-grid{
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.video-responsive{
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.08);
}
.video-responsive iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ========== FOOTER ========== */
.site-footer{
  background: #071227;
  color: #e5e7eb;
  padding: 18px 0;
  text-align: center;
}
.footer-inner p{ opacity: .95; }

/* ========== Mobile ========== */
.nav-toggle{ display: none; }
.nav-toggle-btn{
  display: none;
  position: absolute;
  right: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.10);
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  cursor: pointer;
}
.nav-toggle-btn span{
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 99px;
}

@media (max-width: 980px){
  .grid-imagenes{ grid-template-columns: repeat(2, 1fr); }
  .videos-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 860px){
  .nav-inner{ justify-content: flex-start; }
  .nav-toggle-btn{ display: inline-flex; }

  .menu-principal{
    position: absolute;
    left: 0;
    top: calc(100% + 10px);
    width: min(92vw, 460px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #ffffff;
    color: #0f172a;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.10);
    box-shadow: 0 22px 60px rgba(2, 6, 23, 0.22);
    padding: 10px;
    z-index: 60;
  }

  .nav-toggle:checked ~ .menu-principal{ display: flex; }

  .menu-principal > li > a{
    color: #0f172a;
    justify-content: space-between;
  }

  .submenu{
    position: static;
    transform: none;
    min-width: 100%;
    border: 0;
    box-shadow: none;
    padding: 6px 0 0;
    display: none;
  }

  .has-dropdown:hover > .submenu,
  .has-dropdown:focus-within > .submenu{ display: block; }
}