:root {
      --azul-celeste: rgb(6, 108, 251);
      --azul-oscuro: #033874;
      --amarillo: #ffc107;
      --rojo: #dc3545;
      --blanco: #f8f9fa;
      --gris-claro: #ccd4e2;
}

body {
    font-family: 'Montserrat', Arial, sans-serif;
    background: linear-gradient(120deg, var(--azul-celeste) 0%, var(--azul-oscuro) 100%);
    color: var(--blanco);
    min-height: 100vh;
}

/* Header institucional */
.teceec-header {
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
  background: linear-gradient(135deg, var(--azul-oscuro), var(--azul-celeste));
  color: var(--blanco);
}

/* Navbar institucional */
.navbar, .teceec-header {
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
    background: linear-gradient(135deg, var(--azul-oscuro), var(--azul-celeste));
}

.navlogo-img, .logo-header {
    width: 60px;
    height: auto;
    filter: drop-shadow(0 2px 6px #0003);
}

.navbar-nav .nav-link {
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--blanco) !important;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s;
}
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 10%;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--amarillo);
  transition: width 0.3s;
}
.navbar-nav .nav-link:hover::after {
  width: 80%;
}
.navbar-nav .nav-link:hover {
  color: var(--amarillo) !important;
  text-shadow: 0 0 8px var(--amarillo);
}

/* WhatsApp y redes en header */
.icon-box {
  background-color: #ffffff10;
  padding: 0.75rem;
  border-radius: 50%;
  box-shadow: 0 0 10px var(--azul-celeste);
}
.pulse-icon { animation: pulse 2s infinite; }
@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.8; }
  100% { transform: scale(1); opacity: 1; }
}

/* Estilo para el icono de WhatsApp */
.text-success,
.whatsapp-icon {
  color: var(--azul-celeste) !important;
  transition: color 0.3s;
}
.whatsapp-icon:hover {
  color: var(--amarillo) !important;
  transform: scale(1.15);
}

/* Botón flotante de WhatsApp */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  background: var(--amarillo);
  color: var(--azul-celeste);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px var(--azul-celeste);
  font-size: 2rem;
  transition: background 0.3s, color 0.3s;
}
.whatsapp-btn:hover {
  background: var(--rojo);
  color: var(--blanco);
}


.btn-outline-danger, .btn-outline-primary {
  border-radius: 30px;
  font-weight: 600;
  padding: 0.5rem 1.5rem;
  transition: background 0.3s, color 0.3s;
}
.btn-outline-danger:hover, .btn-outline-primary:hover {
  background: var(--amarillo);
  color: #212529;
  border-color: var(--amarillo);
}

/* Carrusel */
.carousel-caption {
  bottom: 12%;
  background: rgba(0,0,0,0.55);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  max-width: 600px;
  animation: fadeInUp 1s;
}
.carousel-caption h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--amarillo);
  text-shadow: 0 2px 8px #0007;
}

.carousel-caption p {
  font-size: 1.2rem;
  color: var(--blanco);
  margin-bottom: 1rem;
}
.carousel-caption .btn {
  font-size: 1.1rem;
  border-radius: 30px;
  padding: 0.6rem 2rem;
  font-weight: 600;
  background: var(--amarillo);
  color: #212529;
  border: none;
  box-shadow: 0 2px 8px var(--amarillo);
  transition: background 0.3s, color 0.3s;
}
.carousel-caption .btn:hover {
  background: var(--azul-celeste);
  color: var(--blanco);
}

/* Cards de servicios */
.servicio-card {
  border: none;
  border-radius: 18px;
  box-shadow: 0 8px 32px var(--azul-celeste);
  background: linear-gradient(135deg, var(--azul-oscuro) 80%, var(--azul-celeste) 100%);
  transition: transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
  margin-bottom: 32px;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.servicio-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 16px 40px var(--amarillo);
}
.servicio-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  filter: brightness(0.92);
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
}
.servicio-body {
  padding: 1.7rem;
  background: linear-gradient(160deg, var(--azul-oscuro), var(--azul-celeste));
  color: var(--blanco);
  border-bottom-left-radius: 18px;
  border-bottom-right-radius: 18px;
}
.servicio-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--amarillo);
  margin-bottom: 0.7rem;
  letter-spacing: 0.5px;
}
.servicio-body i {
  font-size: 1.3rem;
  margin-right: 8px;
  animation: pulse 2s infinite;
  color: var(--amarillo);
}
.servicio-body p {
  font-size: 1rem;
  color: var(--gris-claro);
  line-height: 1.7;
}

/* Cards generales */
.card {
  border-radius: 18px;
  box-shadow: 0 8px 32px var(--azul-celeste);
  transition: transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}
.card:hover {
  transform: scale(1.04);
  box-shadow: 0 16px 40px var(--amarillo);
}
.card-img-top {
  height: 180px;
  object-fit: cover;
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
}
.card-body {
  padding: 1.5rem;
  background: var(--blanco);
}
.card-title a {
  color: var(--azul-celeste);
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.3s;
}
.card-title a:hover {
  color: var(--amarillo);
}
.card-text {
  font-size: 0.97rem;
  color: #666;
}

.intro-section {
  background-image: url('../img/fondo-cursos.jpg'); /* Usa una imagen institucional atractiva */
  background-size: cover;
  background-position: center;
  min-height: 520px;
}

.intro-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(3, 56, 116, 0.7), rgba(6, 108, 251, 0.4));
  z-index: 1;
}

.intro-section .container {
  position: relative;
  z-index: 2;
}

/* Preguntas frecuentes */
#seccion-faq h2 {
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  color: var(--azul-celeste);
}
.accordion-button {
  background: var(--blanco);
  font-weight: 600;
  transition: background 0.3s;
}
.accordion-button:hover {
  background: var(--amarillo);
  color: var(--azul-oscuro);
}
.accordion-body {
  font-size: 1rem;
  color: var(--azul-oscuro);
  padding: 1.25rem;
  border-radius: 0 0 8px 8px;
  background: var(--gris-claro);
}


.curso-card {
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.curso-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 20px rgba(6, 108, 251, 0.2); /* sombra azul celeste */
}
.img-wrapper {
  display: block;
  height: 220px;
  overflow: hidden;
}
.img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.img-wrapper:hover img {
  transform: scale(1.05);
}


/* Footer */
.footer, .bg-gradient-dark {
  margin-top: auto;
  padding-top: 3rem;
  padding-bottom: 2rem;
  background: linear-gradient(135deg, var(--azul-oscuro), var(--azul-celeste));
  color: var(--blanco);
  border-top: 2px solid var(--amarillo);
  font-size: 0.95rem;
}
.footer a {
  color: var(--amarillo);
  text-decoration: none;
  font-weight: 600;
}
.footer a:hover {
  color: var(--rojo);
  text-decoration: underline;
}
.social-icon i {
  transition: transform 0.3s, filter 0.3s;
  color: var(--azul-celeste);
}
.social-icon:hover i {
  transform: scale(1.3);
  filter: brightness(1.3);
  color: var(--amarillo);
}

/* Colores para iconos */
.text-success { color: var(--azul-celeste) !important; }
.text-primary { color: var(--azul-celeste) !important; }
.text-warning { color: var(--amarillo) !important; }
.text-danger { color: var(--rojo) !important; }

/* Responsive */
@media (max-width: 768px) {
  .carousel-caption { padding: 1rem; max-width: 95vw; }
  .servicio-img { height: 140px; }
  .servicio-body { padding: 1rem; }
  .card-img-top { height: 120px; }
  .card-body { padding: 1rem; }
  .navbar-nav .nav-link { font-size: 1rem; }
  .servicio-card { margin-bottom: 20px; min-height: 0; }
  .footer { font-size: 0.85rem; }
}
@media (max-width: 576px) {
  .carousel-caption h2 { font-size: 1.3rem; }
  .servicio-body h3 { font-size: 1rem; }
  .servicio-body i { font-size: 1.1rem; }
  .footer { font-size: 0.8rem; }
}