/* 
 * UpMeals Loading Screen Component
 * Smart loading screen with LinkedIn-style animation
 * Used in index.html for immediate display before Angular bootstrap
 */

:root {
  --loader-fade-duration: 300ms;
  --upmeals-primary: #05B09B;
  --upmeals-gray-light: #f8f9fa;
  --upmeals-gray-track: #e1e9ee;
}

.upmeals-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--upmeals-gray-light);
  transition: opacity var(--loader-fade-duration) ease-out;
  z-index: 9999;
}

.upmeals-loader.loaded {
  opacity: 0;
}

.upmeals-loader__logo {
  width: 240px;
  height: auto;
  margin-bottom: 32px;
}

.upmeals-loader__progress {
  position: relative;
  width: 200px;
  height: 2px;
  background-color: var(--upmeals-gray-track);
  border-radius: 1px;
  overflow: hidden;
}

.upmeals-loader__progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: -200px;
  width: 200px;
  height: 100%;
  background-color: var(--upmeals-primary);
  border-radius: 1px;
  animation: linkedin-progress 1.5s ease-in-out infinite;
}

/* LinkedIn-style progress animation */
@keyframes linkedin-progress {
  0% { 
    left: -200px; 
    opacity: 0;
  }
  
  20% {
    opacity: 1;
  }
  
  50% { 
    left: 100%; 
    opacity: 1;
  }
  
  100% { 
    left: 100%; 
    opacity: 0;
  }
}

/* Accessibility: Fallback for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .upmeals-loader__progress::after {
    animation: pulse 1.5s ease-in-out infinite;
  }
  
  @keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
  }
}