/* ============================================
   JagoEN.com — Performance Optimizations
   Fixes scrolling lag and improves rendering
   ============================================ */

/* GPU Acceleration for smooth scrolling */
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Optimize canvas (particles) performance */
canvas {
  pointer-events: none;
  will-change: transform;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* Optimize mesh background */
.mesh-bg {
  will-change: auto;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
}

/* Optimize animations - only transform and opacity */
.animate-fade-in-up,
.animate-float,
.animate-scale-in,
.reveal {
  will-change: auto;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* Optimize cards and interactive elements */
.glass-card,
.lesson-card,
.feature-card,
.btn,
.vocab-card {
  will-change: auto;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Remove expensive box-shadows on scroll */
@media (prefers-reduced-motion: no-preference) {
  * {
    scroll-behavior: smooth;
  }
}

/* Optimize hover effects - use transform instead of changing other properties */
.btn:hover,
.feature-card:hover,
.lesson-card:hover {
  will-change: transform;
}

/* Disable animations on low-end devices */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .animate-fade-in-up,
  .animate-float,
  .animate-scale-in,
  .reveal {
    animation: none !important;
  }
}

/* Optimize images for faster rendering */
img {
  content-visibility: auto;
  contain-intrinsic-size: 300px;
}

/* Contain paint for better rendering */
.glass-card,
.lesson-card,
.feature-card {
  contain: layout style paint;
}

/* Reduce repaints on scroll */
.navbar {
  will-change: transform;
  transform: translateZ(0);
}

/* Optimize particle canvas specifically */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
  will-change: auto;
  contain: strict;
}

/* Reduce particle count on mobile */
@media (max-width: 768px) {
  #particles-canvas {
    opacity: 0.3;
  }

  /* Hide particles on very low-end devices */
  @media (max-width: 480px) and (max-height: 800px) {
    #particles-canvas {
      display: none !important;
    }

    .mesh-bg {
      opacity: 0.3;
    }
  }
}

/* Optimize scroll performance */
.section {
  content-visibility: auto;
  contain-intrinsic-size: 500px;
}

/* Prevent layout shift */
.hero {
  min-height: 90vh;
  contain: layout;
}

/* Optimize font rendering */
body {
  text-rendering: optimizeSpeed;
}

h1, h2, h3, h4, h5, h6 {
  text-rendering: optimizeLegibility;
}

/* Reduce GPU usage */
.magnetic-hover,
.hover-lift {
  will-change: auto;
}

.magnetic-hover:hover,
.hover-lift:hover {
  will-change: transform;
}