:root {
  --azul-principal: #1c4386;
  --verde-institucional: #009762;
  --rojo-acento: #c91723;
  --amarillo-acento: #f7c20a;
  --azul-oscuro: #000080;
  --blanco: #ffffff;
  --gris-claro: #f5f7fa;
  --gris-medio: #6b7280;
  --texto: #1f2937;
  --sombra: 0 4px 20px rgba(28, 67, 134, 0.1);
  --sombra-fuerte: 0 8px 30px rgba(28, 67, 134, 0.15);
  --transicion: 0.3s ease;
  --radio: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--texto);
  line-height: 1.6;
  background: var(--blanco);
}

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

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== HEADER / NAV ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--blanco);
  box-shadow: var(--sombra);
  transition: background var(--transicion);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
}

.nav-logo img {
  height: 60px;
  width: auto;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--azul-principal);
  transition: background var(--transicion), color var(--transicion);
}

.nav-links a:hover,
.nav-links a:focus {
  background: var(--azul-principal);
  color: var(--blanco);
}

.nav-cta {
  background: var(--verde-institucional);
  color: var(--blanco) !important;
  font-weight: 600;
  border-radius: 50px !important;
  padding: 0.5rem 1.25rem !important;
}

.nav-cta:hover {
  background: #007a4e !important;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--azul-principal);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transicion);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--azul-principal) 0%, #0d2b5e 100%);
  overflow: hidden;
  padding-top: 80px;
}

.hero-clouds {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  z-index: 2;
}

.hero .container {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  color: var(--blanco);
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255,255,255,0.2);
}

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

.hero-content h1 span {
  color: var(--amarillo-acento);
}

.hero-content p {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 500px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transicion), box-shadow var(--transicion);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-fuerte);
}

.btn-whatsapp {
  background: #25d366;
  color: var(--blanco);
}

.btn-whatsapp:hover {
  background: #1fb855;
}

.btn-secondary {
  background: var(--blanco);
  color: var(--azul-principal);
}

.btn-secondary:hover {
  background: var(--gris-claro);
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
}

.hero-stat {
  text-align: center;
}

.hero-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--amarillo-acento);
}

.hero-stat span {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* ===== SECTIONS GENERALES ===== */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-label {
  display: inline-block;
  background: rgba(28, 67, 134, 0.08);
  color: var(--azul-principal);
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--azul-principal);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.section-header p {
  color: var(--gris-medio);
  font-size: 1.1rem;
}

/* ===== NIVELES ===== */
.niveles {
  background: var(--gris-claro);
}

.niveles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.nivel-card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--sombra);
  transition: transform var(--transicion), box-shadow var(--transicion);
  border-top: 4px solid var(--verde-institucional);
}

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

.nivel-card img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 50%;
  margin: 0 auto 1rem;
  border: 3px solid var(--verde-institucional);
}

.nivel-card h3 {
  font-size: 1.2rem;
  color: var(--verde-institucional);
  margin-bottom: 0.25rem;
}

.nivel-card .edad {
  color: var(--azul-oscuro);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ===== MISIÓN / VISIÓN ===== */
.mision-vision {
  background: var(--blanco);
}

.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.mv-card {
  padding: 2.5rem;
  border-radius: var(--radio);
  position: relative;
  overflow: hidden;
}

.mv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.mv-mision {
  background: linear-gradient(135deg, #eef3fb 0%, #f0f7ff 100%);
}

.mv-mision::before {
  background: var(--azul-principal);
}

.mv-vision {
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
}

.mv-vision::before {
  background: var(--verde-institucional);
}

.mv-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.mv-mision .mv-icon {
  background: var(--azul-principal);
  color: var(--blanco);
}

.mv-vision .mv-icon {
  background: var(--verde-institucional);
  color: var(--blanco);
}

.mv-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--azul-principal);
}

.mv-card p {
  color: var(--gris-medio);
  line-height: 1.8;
}

/* ===== PROPUESTA PEDAGÓGICA ===== */
.pedagogia {
  background: var(--gris-claro);
}

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

.pedagogia-text h3 {
  font-size: 1.5rem;
  color: var(--azul-principal);
  margin-bottom: 1rem;
}

.pedagogia-text p {
  color: var(--gris-medio);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.pedagogia-pilares {
  list-style: none;
}

.pedagogia-pilares li {
  padding: 0.6rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--texto);
  font-weight: 500;
}

.pedagogia-pilares li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--verde-institucional);
  font-weight: 700;
  font-size: 1.1rem;
}

.pedagogia-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.pedagogia-images img {
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  object-fit: cover;
  width: 100%;
  aspect-ratio: 4/3;
}

/* ===== PROGRAMAS / SERVICIOS ===== */
.programas {
  background: var(--blanco);
}

.programas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.programa-card {
  background: var(--gris-claro);
  border-radius: var(--radio);
  padding: 2rem;
  transition: transform var(--transicion), box-shadow var(--transicion);
}

.programa-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sombra-fuerte);
}

.programa-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  background: var(--azul-principal);
  color: var(--blanco);
}

.programa-card h3 {
  font-size: 1.1rem;
  color: var(--azul-principal);
  margin-bottom: 0.5rem;
}

.programa-card p {
  color: var(--gris-medio);
  font-size: 0.95rem;
}

/* ===== HISTORIA ===== */
.historia {
  background: linear-gradient(135deg, var(--azul-principal) 0%, #0d2b5e 100%);
  color: var(--blanco);
}

.historia .section-label {
  background: rgba(255,255,255,0.15);
  color: var(--amarillo-acento);
}

.historia .section-header h2 {
  color: var(--blanco);
}

.historia .section-header p {
  color: rgba(255,255,255,0.7);
}

.historia-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
}

.historia-img img {
  border-radius: var(--radio);
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.historia-text blockquote {
  font-style: italic;
  font-size: 1.15rem;
  border-left: 4px solid var(--amarillo-acento);
  padding-left: 1.5rem;
  margin: 2rem 0;
  opacity: 0.9;
  line-height: 1.7;
}

.historia-text p {
  opacity: 0.85;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.timeline {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.timeline-item {
  text-align: center;
}

.timeline-item strong {
  display: block;
  font-size: 1.5rem;
  color: var(--amarillo-acento);
}

.timeline-item span {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== PROPÓSITOS ===== */
.propositos {
  background: var(--gris-claro);
}

.propositos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.proposito-card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--sombra);
  border-bottom: 4px solid var(--azul-principal);
}

.proposito-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.proposito-card h3 {
  color: var(--azul-principal);
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.proposito-card p {
  color: var(--gris-medio);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CTA WHATSAPP ===== */
.cta-whatsapp {
  background: linear-gradient(135deg, var(--verde-institucional) 0%, #007a4e 100%);
  color: var(--blanco);
  text-align: center;
  padding: 4rem 0;
}

.cta-whatsapp h2 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.cta-whatsapp p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-whatsapp .btn-whatsapp {
  font-size: 1.15rem;
  padding: 1rem 2.5rem;
  background: var(--blanco);
  color: #25d366;
}

.cta-whatsapp .btn-whatsapp:hover {
  background: var(--gris-claro);
}

/* ===== CONTACTO ===== */
.contacto {
  background: var(--blanco);
}

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contacto-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contacto-item .icon-wrap {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: rgba(28, 67, 134, 0.08);
  color: var(--azul-principal);
}

.contacto-item h4 {
  font-size: 1rem;
  color: var(--azul-principal);
  margin-bottom: 0.25rem;
}

.contacto-item p {
  color: var(--gris-medio);
  font-size: 0.95rem;
}

.contacto-mapa {
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra);
  min-height: 350px;
  background: var(--gris-claro);
}

.contacto-mapa iframe {
  width: 100%;
  height: 100%;
  min-height: 350px;
  border: none;
}

.contacto-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--azul-principal);
  color: var(--blanco);
  font-size: 1.1rem;
  transition: transform var(--transicion), background var(--transicion);
}

.social-link:hover {
  transform: scale(1.1);
  background: var(--verde-institucional);
}

/* ===== FOOTER ===== */
.site-footer {
  background: #0d1b3e;
  color: rgba(255,255,255,0.7);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand img {
  height: 60px;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.site-footer h4 {
  color: var(--blanco);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: color var(--transicion);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== WHATSAPP FLOTANTE ===== */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform var(--transicion), box-shadow var(--transicion);
  animation: pulse-wa 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: var(--blanco);
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content h1 { font-size: 2.25rem; }
  .hero-content p { margin: 0 auto 2rem; }
  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-image { display: none; }
  .mv-grid { grid-template-columns: 1fr; }
  .pedagogia-content { grid-template-columns: 1fr; }
  .historia-content { grid-template-columns: 1fr; }
  .contacto-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blanco);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--sombra-fuerte);
  }
  .nav-links.active { display: flex; }
  .mobile-toggle { display: block; }
  .hero { min-height: 85vh; }
  .hero-content h1 { font-size: 2rem; }
  section { padding: 3rem 0; }
  .section-header h2 { font-size: 1.75rem; }
  .niveles-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .programas-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.6rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .timeline { flex-direction: column; gap: 1rem; }
}