/* ========================================================================= */
/* === [1] CONFIGURACIÓN GLOBAL Y UTILIDADES === */
/* ========================================================================= */

/* --- [1.1] Variables CSS (Paleta de Colores) --- */
:root {
  --cecns-blue: #004080; /* Azul Primario Institucional (Escuela) */
  --cecns-gold: #ffc300; /* Dorado de Acento (Contraste) */
  --cecns-wine: #800020; /* Color Vino Oscuro para fondos de Misión/Visión */
  --text-color: #333; /* Color de texto principal */
  --bg-light: #f8f9fa; /* Color de fondo claro */
  --bg-white: #fff; /* Color de fondo blanco */
  --link-color: var(--cecns-blue);
}

/* --- [1.2] Base y Reset --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-white);
}
a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.3s;
}
a:hover {
  color: var(--cecns-gold);
}

/* --- [1.3] Utilidades Generales --- */
.section-padding {
  padding: 3rem 10%;
  text-align: center;
}

.bg-light {
  background-color: var(--bg-light);
}

.section-title {
  font-size: 2rem;
  color: var(--cecns-gold);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 0.5rem;
}
.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--cecns-gold);
  border-radius: 2px;
}
.sub-title {
  color: var(--cecns-gold);
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

/* ========================================================================= */
/* === [2] ESTRUCTURA PRINCIPAL (HEADER, NAV Y HERO) === */
/* ========================================================================= */

/* --- [2.1] Encabezado y Navegación --- */
.main-header {
  background: var(--bg-white);
  padding: 1rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  height: 40px;
}
.logo h1 {
  color: var(--cecns-blue);
  font-size: 1.5rem;
}

.main-nav ul {
  list-style: none;
  display: flex;
}
.main-nav a {
  text-decoration: none;
  color: var(--text-color);
  padding: 1rem 1.2rem;
  display: block;
  transition: color 0.3s, background-color 0.3s;
  font-weight: 600;
}
.main-nav a:hover,
.dropdown-menu a:hover {
  color: white;
  background-color: var(--cecns-blue);
}

/* Botón CTA en la Navegación */
.btn-cta-nav {
  background-color: var(--cecns-gold) !important;
  color: var(--cecns-blue) !important;
  border-radius: 5px;
  padding: 0.7rem 1.2rem !important;
  margin-left: 10px;
}
.btn-cta-nav:hover {
  background-color: var(--cecns-blue) !important;
  color: var(--cecns-gold) !important;
}

/* --- [2.2] Menú Desplegable (Dropdown) --- */
.dropdown {
  position: relative;
  z-index: 2000;
}
.dropdown-toggle i {
  margin-left: 5px;
  font-size: 0.8em;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--cecns-blue);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  min-width: 350px;
  list-style: none;
  padding: 0;
  border-radius: 5px;
  z-index: 2001;
  display: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.dropdown-menu li a {
  color: white;
  padding: 10px 15px;
  font-weight: 400;
  display: block;
  transition: background 0.3s, color 0.3s;
}
.dropdown-menu li a:hover {
  background-color: var(--cecns-gold);
  color: var(--cecns-blue);
}

/* Mostrar dropdown en hover para escritorio */
@media (min-width: 993px) {
  .dropdown:hover .dropdown-menu {
    display: block !important;
    opacity: 1;
    visibility: visible;
  }
}

/* Botón de Menú Móvil (Hamburguesa) */
.nav-toggle {
  display: none; /* Oculto en escritorio */
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--cecns-blue);
}

/* --- [2.3] Sección Hero (Portada) --- */
.hero {
  background: var(--cecns-blue);
  color: #fff;
  padding: 3rem 5% 2rem 5%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  margin: 0 auto;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.hero-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  z-index: 2;
  position: relative;
}
.hero-slogan {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  z-index: 2;
  position: relative;
}

/* Estilo para todos los Botones Primarios */
.btn-primary {
  display: inline-block;
  background: var(--cecns-gold);
  color: var(--cecns-blue);
  text-decoration: none;
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: bold;
  transition: transform 0.3s, background 0.3s;
  z-index: 2;
  position: relative;
  margin-top: 2rem;
  margin-bottom: 0;
}
.btn-primary:hover {
  transform: translateY(-3px);
  background: #ffdb60;
}

/* ========================================================================= */
/* === [3] BLOQUES DE CONTENIDO (PÁGINA PRINCIPAL) === */
/* ========================================================================= */

/* --- [3.1] Filosofía (Misión/Visión/Valores) --- */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 2rem;
  margin-top: 2rem;
}
.mission-vision-card {
  background: var(--cecns-wine);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s;
  color: white;
}
.mission-vision-card h3,
.mission-vision-card p {
  color: white;
}
.mission-vision-card i {
  font-size: 2.5rem;
  color: var(--cecns-gold);
  margin-bottom: 1rem;
}
.mission-vision-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Tarjetas de Valores */
.values-card {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s;
  color: var(--text-color);
}
.values-list {
  list-style: none;
  text-align: left;
  margin-top: 1rem;
}
.values-list li {
  padding: 5px 0;
  color: var(--cecns-blue);
  font-weight: bold;
}
.values-list li i {
  color: var(--cecns-gold);
  margin-right: 8px;
}
.media-placeholder {
  min-height: 300px;
  background: #eee;
  margin: 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-style: italic;
  border-radius: 8px;
  color: #666;
}

/* --- [3.2] Bloque de Historia --- */
.history-flex-container {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: center;
  text-align: left;
  margin-bottom: 3rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.history-text-block {
  flex: 1;
  min-width: 450px;
  background-color: var(--cecns-blue);
  color: white;
  padding: 2.5rem;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}
.history-text-block h3 {
  color: var(--cecns-gold);
  margin-bottom: 1.5rem;
}
.history-text-block p {
  margin-bottom: 1rem;
  color: white;
  font-size: 1.05rem;
}
.history-text-block ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1rem;
  padding-top: 1rem;
}
.history-text-block ul li {
  font-size: 1.1rem;
  margin-bottom: 8px;
  padding-left: 0;
  display: flex;
  align-items: flex-start;
}
.history-text-block ul li i {
  margin-right: 10px;
  color: var(--cecns-gold);
  font-size: 1.2rem;
  margin-top: 3px;
}

/* --- [3.3] Carrusel de Historia (5 Imágenes) --- */
.history-carousel-container {
  flex: 1;
  min-width: 400px;
  height: 450px;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  position: relative;
  background-color: #f0f0f0;
}
.history-carousel-track {
  display: flex;
  width: fit-content;
  height: 100%;
  animation: slide-carousel 20s infinite linear;
}
.history-carousel-img {
  width: 400px; /* Sincronizado con el salto de Keyframes */
  height: 100%;
  object-fit: cover;
  flex-shrink: 0;
  border-radius: 10px;
}
/* Keyframes para el Carrusel de Historia */
@keyframes slide-carousel {
  0% {
    transform: translateX(0);
  }
  15% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-400px);
  }
  35% {
    transform: translateX(-400px);
  }
  40% {
    transform: translateX(-800px);
  }
  55% {
    transform: translateX(-800px);
  }
  60% {
    transform: translateX(-1200px);
  }
  75% {
    transform: translateX(-1200px);
  }
  80% {
    transform: translateX(-1600px);
  }
  95% {
    transform: translateX(-1600px);
  }
  100% {
    transform: translateX(0);
  }
}

/* --- [3.4] Carrusel de Infraestructura (7 Imágenes) - LENTITUD AJUSTADA a 25s --- */
.infra-carousel-container {
  min-width: 400px;
  height: 350px;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  position: relative;
  background-color: #f0f0f0;
  margin-bottom: 2rem;
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
  width: 90%;
}
.infra-carousel-track {
  display: flex;
  width: 700%;
  height: 100%;
  /* Velocidad: 25 segundos para 7 imágenes */
  animation: infra-slide-carousel 25s infinite linear;
}
.infra-carousel-img {
  width: calc(100% / 7);
  height: 100%;
  object-fit: cover;
  flex-shrink: 0;
  border-radius: 10px;
}
/* Keyframes para el Carrusel de Infraestructura (7 imágenes) */
@keyframes infra-slide-carousel {
  0% {
    transform: translateX(0%);
  }
  16% {
    transform: translateX(-14.2857%);
  }
  32% {
    transform: translateX(-28.5714%);
  }
  48% {
    transform: translateX(-42.8571%);
  }
  64% {
    transform: translateX(-57.1428%);
  }
  80% {
    transform: translateX(-71.4285%);
  }
  96% {
    transform: translateX(-85.7142%);
  }
  100% {
    transform: translateX(0%);
  }
}

/* --- [3.5] Galería de Fotos (Rollo Scroll Horizontal) --- */
.photo-roll-container {
  max-width: 100%;
  overflow-x: auto;
  padding-bottom: 20px;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}
.photo-roll {
  display: flex;
  flex-direction: row;
  gap: 15px;
  padding: 0 5%;
  width: max-content;
}
.photo-item {
  flex-shrink: 0;
  width: 400px;
  height: 250px;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}
.photo-item:hover {
  transform: scale(1.03);
}
.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-roll-container::-webkit-scrollbar {
  height: 8px;
}
.photo-roll-container::-webkit-scrollbar-thumb {
  background: var(--cecns-gold);
  border-radius: 10px;
}
.photo-roll-container::-webkit-scrollbar-track {
  background: var(--bg-light);
}

/* --- [3.6] Formulario de Admisión --- */
.admission-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-white);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: left;
}
.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: var(--cecns-blue);
}
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--cecns-gold);
  outline: none;
}
.form-group textarea {
  resize: vertical;
}

/* ========================================================================= */
/* === [5] PIE DE PÁGINA (FOOTER) === */
/* ========================================================================= */

/* ========================================================================= */
/* === [6] MEDIA QUERIES (RESPONSIVE) === */
/* ========================================================================= */

@media (max-width: 992px) {
  /* AJUSTE: Relleno y encabezado reducido en móvil */
  .section-padding {
    padding: 2rem 5%;
  }
  .main-header {
    padding: 1rem 5%;
  }

  /* --- [6.1] Estructura General y Grids --- */
  .philosophy-grid {
    grid-template-columns: 1fr;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }
  .history-flex-container {
    flex-direction: column;
    gap: 20px;
  }
  .history-text-block {
    min-width: unset;
    width: 100%;
    padding: 1.5rem;
  }

  /* Galería Móvil: Ajusta el tamaño de las fotos para el rollo */
  .photo-item {
    width: 250px;
    height: 150px;
  }

  /* --- [6.2] Navegación Móvil --- */
  .nav-toggle {
    display: block !important;
  }
  .main-nav {
    display: none;
    width: 100%;
    position: absolute;
    top: 60px;
    left: 0;
    background: var(--cecns-blue);
    flex-direction: column;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
    z-index: 2000;
  }
  .main-nav.active {
    display: flex !important;
  }
  .main-nav ul {
    flex-direction: column;
    width: 100%;
  }
  .main-nav ul li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .main-nav a {
    padding: 1rem;
    color: white;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  /* Submenú en móvil */
  .dropdown-menu {
    position: static !important;
    background: #002c5c;
    width: 100%;
    border-radius: 0;
    display: none !important;
    opacity: 1;
    visibility: visible;
  }
  .dropdown.open .dropdown-menu {
    display: block !important;
  }
  .dropdown-menu li a {
    padding-left: 3rem;
  }
  .btn-cta-nav {
    display: block;
    text-align: center;
    margin: 1rem;
    width: auto;
  }

  /* --- [6.3] Carruseles Responsive --- */
  /* Historia Móvil */
  .history-carousel-container {
    min-width: unset;
    width: 100%;
    height: 300px;
  }
  .history-carousel-img {
    width: 100%;
  }
  @keyframes slide-carousel {
    0% {
      transform: translateX(0%);
    }
    15% {
      transform: translateX(0%);
    }
    20% {
      transform: translateX(-100%);
    }
    35% {
      transform: translateX(-100%);
    }
    40% {
      transform: translateX(-200%);
    }
    55% {
      transform: translateX(-200%);
    }
    60% {
      transform: translateX(-300%);
    }
    75% {
      transform: translateX(-300%);
    }
    80% {
      transform: translateX(-400%);
    }
    95% {
      transform: translateX(-400%);
    }
    100% {
      transform: translateX(0%);
    }
  }

  /* Infraestructura Móvil (Lentitud Ajustada) */
  .infra-carousel-container {
    min-width: unset;
    width: 100%;
    height: 250px;
    margin: 0;
    max-width: 100%;
  }
  .infra-carousel-track {
    width: 700%;
    /* Velocidad: 25 segundos para 7 imágenes */
    animation: infra-slide-carousel 25s infinite linear;
  }
  .infra-carousel-img {
    width: calc(100% / 7) !important;
  }

  @keyframes infra-slide-carousel {
    0% {
      transform: translateX(0%);
    }
    16% {
      transform: translateX(-14.2857%);
    }
    32% {
      transform: translateX(-28.5714%);
    }
    48% {
      transform: translateX(-42.8571%);
    }
    64% {
      transform: translateX(-57.1428%);
    }
    80% {
      transform: translateX(-71.4285%);
    }
    96% {
      transform: translateX(-85.7142%);
    }
    100% {
      transform: translateX(0%);
    }
  }
}