/* ==========================================================================
   COLEGIO SAN JOSÉ - SISTEMA DE ESTILOS VANILLA CSS
   Dominio: https://www.colegiosanjose-cj.com
   ========================================================================== */

/* 2. PALETA DE COLORES EN :ROOT */
:root {
  --color-primario: #652D92;      /* Morado institucional — Header, CTA primarios, títulos */
  --color-primario-oscuro: #4d2170;
  --color-secundario: #8CC63E;    /* Verde escudo — Acentos, hover, checkmarks */
  --color-secundario-oscuro: #6f9e30;
  --color-acento: #F0C946;        /* Dorado — Detalles puntuales, badges, líneas divisorias */
  --color-acento-oscuro: #D9B24A; /* Dorado sombra — Gradientes/bordes */
  --color-apoyo: #2A53A5;         /* Azul cielo — Fondos de sección alternos */
  --color-apoyo-oscuro: #1d3d7c;
  --color-texto: #2B2B2B;         /* Gris oscuro — Texto principal */
  --color-texto-mutado: #555555;
  --color-fondo: #FAFAF8;         /* Blanco hueso — Fondo general */
  --color-blanco: #FFFFFF;
  --color-borde: #E0E0DC;

  /* Tipografía */
  --fuente-principal: 'Outfit', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Sombras & Transiciones */
  --sombra-suave: 0 4px 15px rgba(0, 0, 0, 0.05);
  --sombra-tarjeta: 0 8px 24px rgba(43, 43, 43, 0.08);
  --sombra-elevada: 0 16px 36px rgba(101, 45, 146, 0.15);
  --transicion-rapida: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transicion-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  
  --header-altura: 80px;
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-altura);
  font-size: 16px;
}

body {
  font-family: var(--fuente-principal);
  background-color: var(--color-fondo);
  color: var(--color-texto);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transicion-rapida);
}

ul {
  list-style: none;
}

/* CONTENEDORES Y CONTRASTE AA */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section-padding {
  padding: 5rem 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: rgba(240, 201, 70, 0.2);
  color: #7a5e00;
  border: 1px solid var(--color-acento-oscuro);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.badge-tag.badge-light {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-acento);
  border-color: rgba(240, 201, 70, 0.6);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primario);
  margin-bottom: 1rem;
  line-height: 1.25;
}

.section-title.title-light {
  color: var(--color-blanco);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-texto-mutado);
  max-width: 720px;
  margin: 0 auto 3rem auto;
}

.section-subtitle.subtitle-light {
  color: rgba(255, 255, 255, 0.9);
}

/* BOTONES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transicion-normal);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primario);
  color: var(--color-blanco);
  box-shadow: 0 6px 18px rgba(101, 45, 146, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primario-oscuro);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(101, 45, 146, 0.35);
}

.btn-secondary {
  background-color: var(--color-secundario);
  color: var(--color-texto);
  box-shadow: 0 6px 18px rgba(140, 198, 62, 0.3);
}

.btn-secondary:hover {
  background-color: var(--color-secundario-oscuro);
  color: var(--color-blanco);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-blanco);
  border-color: var(--color-blanco);
}

.btn-outline-white:hover {
  background: var(--color-blanco);
  color: var(--color-primario);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25D366;
  color: var(--color-blanco);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background-color: #1eb957;
  color: var(--color-blanco);
  transform: translateY(-2px);
}

/* 5. SECCIONES DE LA PÁGINA */

/* HEADER (Sticky) */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-altura);
  background-color: var(--color-primario);
  color: var(--color-blanco);
  z-index: 1000;
  box-shadow: var(--sombra-tarjeta);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  width: 95%;
  margin: 0 auto;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  margin-right: 1.5rem;
}

.logo-img {
  height: 48px;
  width: auto;
  flex-shrink: 0;
}

.logo-title-group {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.logo-brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-blanco);
  line-height: 1.15;
  white-space: nowrap;
}

.logo-brand-sub {
  font-size: 0.7rem;
  color: var(--color-acento);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  padding: 0.35rem 0;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-acento);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-secundario);
  transition: width var(--transicion-rapida);
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.hamburger-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-blanco);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0.4rem;
}

/* #INICIO (HERO) */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(101, 45, 146, 0.92) 0%, rgba(42, 83, 165, 0.88) 100%),
              url('../assets/images/institucionales/01-fachada-colegio-cielo-azul.jpg') center/cover no-repeat;
  color: var(--color-blanco);
  padding: 4.5rem 0 5.5rem 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-motto-tag {
  display: inline-block;
  background: rgba(240, 201, 70, 0.2);
  border: 1px solid var(--color-acento);
  color: var(--color-acento);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.hero-h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-sub {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.95);
  font-style: italic;
  margin-bottom: 2rem;
  border-left: 4px solid var(--color-secundario);
  padding-left: 1rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-img-box {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  border: 4px solid rgba(255, 255, 255, 0.3);
}

.hero-img-box img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* #NOSOTROS */
.nosotros-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: center;
}

.nosotros-img-box {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--sombra-tarjeta);
  border-bottom: 6px solid var(--color-secundario);
}

.nosotros-img-box img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.nosotros-block {
  margin-bottom: 1.8rem;
}

.nosotros-block h3 {
  font-size: 1.35rem;
  color: var(--color-primario);
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nosotros-block h3 i {
  color: var(--color-secundario);
}

.nosotros-block p {
  font-size: 1rem;
  color: var(--color-texto);
  line-height: 1.65;
}

.lema-highlight-box {
  background-color: rgba(240, 201, 70, 0.15);
  border-left: 5px solid var(--color-acento-oscuro);
  padding: 1.2rem 1.5rem;
  border-radius: 8px;
  margin: 1.8rem 0;
}

.lema-highlight-box p {
  font-size: 1.1rem;
  font-weight: 700;
  color: #634f00;
}

.nosotros-bullets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.bullet-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.925rem;
}

.bullet-item i {
  color: var(--color-secundario);
}

/* #OFERTA */
.oferta-section {
  background-color: var(--color-blanco);
}

.oferta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.oferta-card {
  background: var(--color-fondo);
  padding: 1.6rem 1.4rem;
  border-radius: 12px;
  border: 1px solid var(--color-borde);
  transition: all var(--transicion-normal);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.oferta-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-secundario);
  box-shadow: var(--sombra-tarjeta);
  background: var(--color-blanco);
}

.oferta-icon {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background-color: rgba(101, 45, 146, 0.1);
  color: var(--color-primario);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.oferta-card:nth-child(even) .oferta-icon {
  background-color: rgba(140, 198, 62, 0.15);
  color: var(--color-secundario-oscuro);
}

.oferta-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primario);
  margin-bottom: 0.4rem;
}

.oferta-text {
  font-size: 0.9rem;
  color: var(--color-texto-mutado);
  line-height: 1.5;
}

/* #NIVELES */
.niveles-section {
  background-color: var(--color-fondo);
}

.niveles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.nivel-card {
  background: var(--color-blanco);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-borde);
  box-shadow: var(--sombra-suave);
  display: flex;
  flex-direction: column;
  transition: transform var(--transicion-normal), box-shadow var(--transicion-normal);
}

.nivel-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sombra-elevada);
}

.nivel-img-wrapper {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.nivel-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.nivel-card:hover .nivel-img-wrapper img {
  transform: scale(1.06);
}

.nivel-content {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.nivel-header-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primario);
  margin-bottom: 0.8rem;
}

.nivel-grades-list {
  background-color: rgba(140, 198, 62, 0.12);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 1.2rem;
}

.nivel-grades-list p {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-secundario-oscuro);
  margin-bottom: 0.3rem;
}

.nivel-grades-list ul li {
  font-size: 0.85rem;
  color: var(--color-texto);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nivel-bullets {
  margin-bottom: 1.5rem;
}

.nivel-bullets li {
  font-size: 0.9rem;
  color: var(--color-texto);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.nivel-bullets li i {
  color: var(--color-secundario);
  margin-top: 0.2rem;
}

.estancia-note-box {
  margin-top: auto;
  background-color: rgba(240, 201, 70, 0.18);
  border: 1px solid var(--color-acento-oscuro);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  color: #614a00;
  font-weight: 600;
}

/* #INSTALACIONES */
.instalaciones-section {
  background-color: var(--color-apoyo);
  color: var(--color-blanco);
}

.galeria-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.8rem;
  margin-top: 2rem;
}

.galeria-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  height: 250px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  flex: 1 1 320px;
  max-width: 380px;
  width: 100%;
}

.galeria-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.galeria-item:hover img {
  transform: scale(1.08);
}

.galeria-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 0.8rem 1.2rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0) 100%);
  color: var(--color-acento);
  font-size: 1rem;
  font-weight: 700;
}

/* #VIDA-ESCOLAR */
.vida-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.vida-card {
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-blanco);
  box-shadow: var(--sombra-suave);
  border: 1px solid var(--color-borde);
  transition: transform var(--transicion-fast);
}

.vida-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--sombra-tarjeta);
}

.vida-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* #REQUISITOS */
.requisitos-card-box {
  background: var(--color-blanco);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  box-shadow: var(--sombra-tarjeta);
  border-top: 6px solid var(--color-secundario);
  max-width: 860px;
  margin: 0 auto;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.95rem;
  color: var(--color-texto);
}

.check-item i {
  color: var(--color-secundario);
  font-size: 1.2rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.requisitos-footnote {
  background-color: var(--color-fondo);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  border-left: 4px solid var(--color-primario);
  font-size: 0.9rem;
  color: var(--color-texto-mutado);
  margin-bottom: 2rem;
}

/* #CONTACTO */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.contacto-info-box {
  background: var(--color-primario);
  color: var(--color-blanco);
  padding: 3rem 2.5rem;
  border-radius: 16px;
  box-shadow: var(--sombra-elevada);
}

.contacto-info-box h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--color-acento);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item i {
  font-size: 1.4rem;
  color: var(--color-secundario);
  margin-top: 0.2rem;
}

.contact-item strong {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
}

.contact-item a, .contact-item p {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-blanco);
}

.contact-item a:hover {
  color: var(--color-acento);
}

.map-responsive-container {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--sombra-tarjeta);
  height: 380px;
  border: 4px solid var(--color-blanco);
}

.map-responsive-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* FOOTER */
.footer {
  background-color: #1a1a1a;
  color: var(--color-blanco);
  padding-top: 4rem;
  padding-bottom: 2rem;
  border-top: 5px solid var(--color-secundario);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: #a0a0a0;
  margin-top: 0.8rem;
}

.footer-h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-acento);
  margin-bottom: 1.2rem;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #cccccc;
}

.footer-links a:hover {
  color: var(--color-secundario);
}

.social-btns {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.8rem;
}

.social-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: #2e2e2e;
  color: var(--color-blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transicion-rapida);
}

.social-icon-btn:hover {
  background-color: var(--color-secundario);
  color: var(--color-texto);
  transform: translateY(-3px);
}

.footer-bottom-bar {
  border-top: 1px solid #333;
  padding-top: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: #888888;
}

/* BOTÓN FLOTANTE VOLVER AL INICIO */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-primario);
  color: var(--color-blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 6px 20px rgba(101, 45, 146, 0.4);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transicion-normal);
  border: 2px solid var(--color-acento);
}

.back-to-top-btn:hover {
  background-color: var(--color-secundario);
  color: var(--color-texto);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(140, 198, 62, 0.5);
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
}


/* RESPONSIVE MEDIA QUERIES */
@media (max-width: 1080px) {
  .hamburger-btn {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-altura);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-altura));
    background-color: var(--color-primario);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.2rem;
    transition: left var(--transicion-normal);
    box-shadow: var(--sombra-elevada);
    z-index: 999;
  }

  .nav-menu.active {
    left: 0;
  }
}

@media (max-width: 992px) {
  .hero-grid,
  .nosotros-grid,
  .contacto-grid {
    grid-template-columns: 1fr;
  }

  .hero-img-box img {
    height: 320px;
    width: 100%;
    object-fit: cover;
  }

  .checklist-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .galeria-item {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 3.5rem 0;
  }

  .hero-h1 {
    font-size: 2.1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom-bar {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
  }

  .galeria-item {
    flex: 1 1 100%;
    max-width: 100%;
    height: 220px;
  }
}

@media (max-width: 480px) {
  .container {
    width: 94%;
    padding: 0 0.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .galeria-item {
    height: 200px;
  }
}