/* ==========================================================================
   Jaswanth Engineering Services - Custom Animations & Interactive Reveals
   ========================================================================== */

/* Keyframe Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Scroll Reveal Classes (Driven by JS IntersectionObserver) */
.reveal {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.reveal-active {
  opacity: 1;
  transform: none !important;
}

.reveal-fade-up {
  transform: translateY(40px);
}

.reveal-fade-in {
  /* Simple opacity transition */
}

.reveal-scale-in {
  transform: scale(0.92);
}

.reveal-slide-left {
  transform: translateX(-50px);
}

.reveal-slide-right {
  transform: translateX(50px);
}

/* Delay modifiers for sequential item entrance (staggering) */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Micro Interaction: Floating effect for icons */
.hover-float {
  transition: transform var(--transition-fast);
}
.hover-float:hover {
  transform: translateY(-5px);
}

/* Page Loader styling */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-left-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
}