/* ==========================================
   SERVME - LOADING & SKELETONS
   Loading states optimisés
   ========================================== */

/* === LOADING SPINNER === */
#loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === SKELETON LOADING === */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--gray-200) 0%,
    var(--gray-100) 50%,
    var(--gray-200) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius);
}

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

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: var(--space-4);
}

.skeleton-card {
  height: 200px;
  width: 100%;
}

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

/* === FADE TRANSITIONS === */
.fade-enter {
  opacity: 0;
  transform: translateY(20px);
}

.fade-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.fade-exit {
  opacity: 1;
}

.fade-exit-active {
  opacity: 0;
  transition: opacity 0.2s ease;
}

/* === SMOOTH PAGE TRANSITIONS === */
.view-transition {
  animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === PROGRESS BAR === */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.3s ease;
  z-index: 10000;
}

.progress-bar.loading {
  animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
  0% { transform: scaleX(0); }
  50% { transform: scaleX(0.7); }
  100% { transform: scaleX(1); }
}