@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;600;700;800&family=Inter:wght@300;400;600;700;800&display=swap');

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  transition: background-color 0.3s, color 0.3s;
  overflow-x: hidden;
}

/* Glassmorphism */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-nav {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Gradients */
.text-gradient {
  background: linear-gradient(135deg, #60a5fa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bg-gradient-brand {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
}

/* Loader */
#loader {
  position: fixed;
  inset: 0;
  background: #0f172a;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease;
}
#loader.loaded {
  opacity: 0;
  pointer-events: none;
}
.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  border-top-color: #3b82f6;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Mobile Menu Transition */
#mobile-menu {
  transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}
#mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}

/* Card Hover */
.feature-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  border-color: rgba(96, 165, 250, 0.5);
}