*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  overflow-x: hidden;
}

/* Scroll reveal — progressive enhancement: default state is visible, JS adds animated state */
.scroll-reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

  .scroll-reveal {
    opacity: 0;
    transform: translateY(24px);
  }
}

/* Navbar scroll state */
#nav.scrolled {
  box-shadow: 0 1px 20px rgba(5, 150, 105, 0.08);
}

/* Mobile menu */
#mobileMenu.open {
  display: flex;
}

#mobileMenu.hidden {
  display: none;
}

/* FAQ */
.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-content.open {
  max-height: 200px;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-btn[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #FDF9F3;
}

::-webkit-scrollbar-thumb {
  background: #A7F3D0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #6EE7B7;
}