/* Loading Spinner & States - AutoHub Component */

/* Spinner Base */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: #5865f2;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm { width: 14px; height: 14px; border-width: 2px; }
.spinner-md { width: 24px; height: 24px; border-width: 3px; }
.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

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

/* Loading Overlay */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 13, 15, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  z-index: 100;
  border-radius: inherit;
}

.loading-overlay .spinner {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.loading-overlay .loading-text {
  color: #b5bac1;
  font-size: 0.875rem;
}

/* Loading State for Containers */
.is-loading {
  position: relative;
  min-height: 100px;
  pointer-events: none;
}

.is-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(13, 13, 15, 0.7);
  z-index: 10;
}

.is-loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: #5865f2;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  z-index: 11;
}

/* Button Loading State */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, 
    rgba(255,255,255,0.05) 25%, 
    rgba(255,255,255,0.1) 50%, 
    rgba(255,255,255,0.05) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5rem;
}

.skeleton-text:last-child {
  width: 70%;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-card {
  height: 100px;
  border-radius: 8px;
}

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

/* Pulse Animation */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Progress Bar */
.progress-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #5865f2, #7289da);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.progress-bar-indeterminate .progress-bar-fill {
  width: 30%;
  animation: progress-indeterminate 1.5s ease-in-out infinite;
}

@keyframes progress-indeterminate {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}