/* 
 * Optimized Hero Section CSS
 * Fixed for immediate visibility on page load with smooth transitions
 */

/* Hero Section with optimized transitions */
.hero {
  position: relative;
  color: #fff;
  padding: 8rem 0;
  text-align: center;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden; /* Prevent slide content from overflowing */
}

.hero-slides {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.05);
  
  /* IMPORTANT: Optimize the transition for performance */
  transition: 
    opacity 1000ms cubic-bezier(0.4, 0.0, 0.2, 1), 
    transform 1000ms cubic-bezier(0.4, 0.0, 0.2, 1);
  
  /* Hide non-active slides */
  visibility: hidden;
  
  /* Prepare images for hardware acceleration */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}

/* First slide should be immediately visible */
.slide:first-child {
  opacity: 1;
  transform: scale(1);
  visibility: visible;
}

.slide.active {
  opacity: 1;
  transform: scale(1);
  visibility: visible;
}

/* Add a subtle overlay to ensure text readability - but make it more transparent initially */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.25); /* More transparent than before */
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2; /* Ensure content is above the slides */
  max-width: 900px;
  
  /* Immediate visibility for content */
  opacity: 1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
  
  /* Remove animation delay for immediate visibility */
  animation: fadeIn 0.8s ease-out;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
  
  /* Reduce animation delay for faster appearance */
  animation: fadeIn 0.8s ease-out 0.1s both;
}

/* Add animation for the button - faster animation */
.hero .btn {
  animation: fadeIn 0.8s ease-out 0.2s both;
}

/* Simple fade in animation without the upward movement */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Mobile optimization */
@media (max-width: 768px) {
  .hero {
    padding: 6rem 0;
    min-height: 60vh;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
}

/* Reduce quality on smaller screens for better performance */
@media (max-width: 576px) {
  .slide {
    background-attachment: scroll;
    /* Use faster transitions on mobile */
    transition: 
      opacity 800ms cubic-bezier(0.4, 0.0, 0.2, 1), 
      transform 800ms cubic-bezier(0.4, 0.0, 0.2, 1);
  }
}