/* Header fijo */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1030;
  transition: all 0.3s ease;
}

/* Cuando se hace scroll */
header.shrink {
  background-color: rgba(0, 0, 0, 0.9); /* leve oscurecido opcional */
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

/* Imagen del logo */
header .navbar-brand img {
  height: 60px;
  transition: all 0.3s ease;
}

header.shrink .navbar-brand img {
  height: 40px;
}

/* Intro Loader base */
#introLoader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#introLoader.fadeOut {
  opacity: 0;
  visibility: hidden;
}

.loader-inner {
  text-align: center;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid #e0e0e0;
  border-top-color: #3b3f96;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 10px auto;
}

.loader-text {
  color: #3b3f96;
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.5px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.page-title {
    padding: 120px 0 40px;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    color: rgba(255,255,255,.9);
    position: relative;
    text-align: center
}