/* Floating card animations */
@keyframes float-1 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}
@keyframes float-2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(-1deg); }
}
@keyframes float-3 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}
@keyframes float-4 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}

.floating-card { animation: float-1 4s ease-in-out infinite; }
.floating-card-2 { animation: float-2 5s ease-in-out infinite; }
.floating-card-3 { animation: float-3 4.5s ease-in-out infinite; }
.floating-card-4 { animation: float-4 3.5s ease-in-out infinite; }

/* Scroll reveal — progressive enhancement */
.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Nav scroll state */
nav.scrolled {
  background: rgba(253, 249, 243, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(4, 120, 87, 0.08);
}

/* Mobile menu animation */
#mobile-menu.open .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
#mobile-menu.open .menu-line:nth-child(2) {
  opacity: 0;
}
#mobile-menu.open .menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* Smooth scroll offset for fixed nav */
section[id] {
  scroll-margin-top: 80px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #FDF9F3;
}
::-webkit-scrollbar-thumb {
  background: #059669;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #047857;
}