/**
 * loaders.css - Styles pour les indicateurs de chargement
 * Définit différents types de loaders et animations de chargement
 */

/* Loader circulaire (spinner) */
.loader {
  display: inline-block;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--primary);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  margin: var(--spacing-md) auto;
}

.loader-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.loader-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.loader-xl {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

/* Variantes de couleurs */
.loader-primary {
  border-top-color: var(--primary);
}

.loader-light {
  border-top-color: var(--primary-light);
}

.loader-success {
  border-top-color: var(--success);
}

.loader-warning {
  border-top-color: var(--warning);
}

.loader-danger {
  border-top-color: var(--danger);
}

/* Loader avec texte */
.loader-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.loader-text {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Loader barre de progression */
.progress {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  margin: var(--spacing-md) 0;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary);
  border-radius: var(--border-radius-sm);
  transition: width var(--transition-normal);
}

.progress-bar-striped {
  background-image: linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.15) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0.15) 75%,
    transparent 75%,
    transparent
  );
  background-size: 1rem 1rem;
}

.progress-bar-animated {
  animation: progress-bar-stripes 1s linear infinite;
}

@keyframes progress-bar-stripes {
  from { background-position: 1rem 0; }
  to { background-position: 0 0; }
}

/* Variantes de couleurs pour la barre de progression */
.progress-bar-success {
  background-color: var(--success);
}

.progress-bar-warning {
  background-color: var(--warning);
}

.progress-bar-danger {
  background-color: var(--danger);
}

/* Loader dots (trois points) */
.loader-dots {
  display: inline-flex;
  align-items: center;
  height: 20px;
}

.loader-dots::after {
  content: ".";
  width: 1em;
  display: inline-block;
  animation: dots 1.5s steps(3, end) infinite;
  overflow: hidden;
}

/* Loader plein écran */
.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  flex-direction: column;
}

/* Loader pulsation */
.loader-pulse {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--primary);
  animation: pulse 1.5s ease infinite;
}

/* Loader squelette pour le chargement de contenu */
.skeleton {
  display: block;
  background: linear-gradient(
    90deg,
    var(--border-color) 25%,
    #f0f0f0 50%,
    var(--border-color) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--spacing-sm);
  width: 100%;
}

.skeleton-text:last-child {
  width: 80%;
}

.skeleton-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.skeleton-rectangle {
  height: 120px;
  width: 100%;
  margin-bottom: var(--spacing-md);
}