/**
 * אופטימיזציות CSS לביצועים
 * כולל critical CSS, font loading, ו-animations מותאמות
 */

/* Critical CSS - נטען מיד */
@import url('https://fonts.googleapis.com/css2?family=Assistant:wght@400;600;700;800&display=swap');

/* Font preloading */
@font-face {
  font-family: 'Assistant';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('https://fonts.gstatic.com/s/assistant/v18/GFDnWAN1pIpAXR6pMH1H2o6J5g.woff2') format('woff2');
}

/* Base optimizations */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Assistant', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  margin: 0;
  padding: 0;
}

/* Image optimizations */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Lazy loading styles */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* Critical above-the-fold styles */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Performance optimizations */
.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

/* Smooth animations */
@media (prefers-reduced-motion: no-preference) {
  .scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  
  .scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Respect user's motion preferences */
/* On small screens, ensure scroll animations don't prevent elements from appearing */
@media (max-width: 768px) {
  .scroll-animate {
    opacity: 1 !important;
    transform: none !important;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Loading states */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Responsive images */
.responsive-img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Critical layout styles */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Button optimizations */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 0.2s ease;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
}

.btn:hover {
  background: #0056b3;
}

.btn:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
}

/* Form optimizations */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
  font-size: 16px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
  border-color: #007bff;
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}

/* Print styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .hero {
    min-height: auto;
    page-break-inside: avoid;
  }
}