/* Loader Container - 100% del contenedor padre */
.loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--panel);
  backdrop-filter: blur(8px);
  display: none; /* Oculto por defecto */
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  border-radius: inherit;
}

/* Contenedor del spinner y mensaje */
.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

/* Spinner moderno con anillo */
.spinner {
  width: 56px;
  height: 56px;
  border: 3px solid rgba(0, 0, 0, 0.08);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (prefers-color-scheme: dark) {
  .spinner {
    border-color: rgba(255, 255, 255, 0.08);
    border-top-color: var(--accent);
  }
}

/* Icono central - NO se mueve */
.spinner::before {
  content: '';
  position: absolute;
  width: 28px;
  height: 28px;
  background-image: url('/uploads/images/logos/icon.svg');
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.9;
  animation: counterSpin 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

/* Mensaje de carga */
.loader-message {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  animation: fadeInText 0.5s ease-out 0.2s forwards;
  opacity: 0;
}

/* Animaciones */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Contra-rotación para mantener el icono fijo */
@keyframes counterSpin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes fadeInText {
  to {
    opacity: 1;
  }
}

/* Transición suave al mostrar/ocultar */
.loader[style*="display: flex"] {
  animation: fadeIn 0.25s ease-out forwards;
}

.loader[style*="display: none"] {
  animation: fadeOut 0.25s ease-out forwards;
}

@keyframes fadeOut {
  to {
    opacity: 0;
  }
}

/* Variante compacta para contenedores pequeños */
.loader.compact {
  backdrop-filter: blur(4px);
}

.loader.compact .loader-content {
  gap: 1rem;
}

.loader.compact .spinner {
  width: 40px;
  height: 40px;
  border-width: 2px;
}

.loader.compact .spinner::before {
  width: 20px;
  height: 20px;
}

.loader.compact .loader-message {
  font-size: 0.875rem;
}

/* IMPORTANTE: El contenedor padre debe tener position: relative */
/* Ejemplo:
  #miContenedor {
    position: relative;
    min-height: 200px;
  }
*/