/* * HOME.CSS - Optimized for Mobile Performance
 * * fixes applied:
 * 1. Animation definitions wrapped in desktop media queries.
 * 2. Hover effects wrapped in (hover: hover) media queries.
 * 3. Mobile hero padding removed (delegated to Critical CSS in index.php).
 * 4. Hardware acceleration optimized (will-change).
 * 5. Body styles removed (delegated to Critical CSS).
 * 6. Renamed hero-title to rgb-gradient-text.
 */

:root {
  --primary-color: #3b82f6;
  --secondary-color: #8b5cf6;
  /* Dark mode only when explicitly enabled */
body.dark-mode {
  background-color: #0f172a;
  color: #f8fafc;
  --card-bg: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
}

/* =========================================
   Base Layout
   (Body styles moved to index.php Critical CSS)
   ========================================= */

/* * FIX 3: Hero Section Stability
 * Desktop padding remains here.
 * Mobile padding is in index.php Critical CSS.
 */
.hero-section {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  /* Default Desktop Padding */
  padding: 4rem 1rem; 
}

/* Updated Selector Name to match HTML */
.rgb-gradient-text {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* =========================================
   Card Component (Base Styles)
   ========================================= */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  position: relative;
  background-color: var(--card-bg);
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease;
  overflow: hidden;
  /* FIX 4: Optimize hardware acceleration for low-end devices */
  will-change: transform;
}

.card::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
  background-size: 200% 200%;
  border-radius: 1.1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.open-tool-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
  border-radius: 0.5rem;
  font-weight: 500;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

/* =========================================
   FIX 1: Desktop-Only Animations
   Prevents mobile browsers from parsing @keyframes
   ========================================= */
@media (min-width: 768px) {
  @keyframes rgb-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  @keyframes border-glow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }
}

/* =========================================
   FIX 2: Hover Effects Optimization
   Only applies styles on devices that support hover
   ========================================= */
@media (hover: hover) and (pointer: fine) {
  .card:hover::before {
    opacity: 1;
    /* Animation now only referenced here, safe for mobile */
    animation: border-glow 3s linear infinite;
  }

  .card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  }

  .card-link:hover .open-tool-btn {
    transform: scale(1.05);
    background-color: var(--primary-color);
    color: white;
  }
}