:root {
  --background: #ffffff;
  --foreground: #171717;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0a0a0a;
    --foreground: #ededed;
  }
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: 'Varela Round', Arial, Helvetica, sans-serif;
}

/* Scroll reveal (fail-safe) */
[data-animate]{
  opacity:1;
  transform:none;
}

[data-animate].in-view{
  opacity:1;
  transform:none;
}

/* Ken Burns */
@keyframes kenburns {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.1) translate(5px, 5px); }
}
.animate-kenburns {
  animation: kenburns 20s ease-in-out infinite alternate;
  will-change: transform;
}

/* Loader bar */
@keyframes loader-bar {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.animate-loader-bar { width: 100%; animation: loader-bar 2.5s linear infinite; animation-fill-mode: both; }

/* Spin */
@keyframes spin { to { transform: rotate(360deg); } }
.animate-spin { animation: spin 1s linear infinite; }

/* Fade out */
@keyframes fadeOut { 0% { opacity: 1; } 100% { opacity: 0; visibility: hidden; } }
.animate-fadeOut { animation: fadeOut 0.8s ease-in-out forwards; animation-delay: 2s; }

/* Hover zoom */
.image-hover-scale { transition: transform 0.6s ease; }
.image-hover-scale:hover { transform: scale(1.05); }

/* Glow effect */
.glow-effect { transition: box-shadow 0.4s ease; }
.group:hover .glow-effect { box-shadow: 0 0 25px rgba(59, 130, 246, 0.35); }

/* Scroll to top button */
.scroll-to-top-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
}
.scroll-to-top-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Pulse gradient and glow */
@keyframes pulse-gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.animate-pulse-gradient { background-size: 200% 200%; animation: pulse-gradient 6s ease-in-out infinite; }

@keyframes pulse-glow {
  0%, 100% { text-shadow: 0 0 0 #3b82f6, 0 0 0 #fff; }
  50% { text-shadow: 0 0 16px #3b82f6, 0 0 12px #fff; }
}
.group:hover .group-hover\\:animate-pulse-glow { animation: pulse-glow 1.2s infinite; }

/* Mobile menu slide animations */
@keyframes slide-in { from { transform: translateX(100%); } to { transform: translateX(0); } }
.animate-slide-in { animation: slide-in 0.3s ease-out forwards; }
@keyframes slide-out { from { transform: translateX(0); } to { transform: translateX(100%); } }
.animate-slide-out { animation: slide-out 0.3s ease-in forwards; }

/* Navbar underline effect */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: #1d4ed8;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* Helpers that used @apply in Tailwind build (manual equivalents) */
.button-primary {
  background: #1e3a8a;
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 0.25rem;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.12);
}
.button-primary:hover {
  background: #1e40af;
  box-shadow: 0 10px 15px rgba(0,0,0,0.15);
}
.btn-primary {
  background: #1e3a8a;
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 0.25rem;
  font-weight: 500;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 15px rgba(0,0,0,0.12);
}
.btn-primary:hover { background: #1e40af; }

.section-padding { padding: 5rem 1.5rem; max-width: 80rem; margin: 0 auto; }