/* Base & Utilities */
html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal — progressive enhancement, only active when JS enables it */
.section-reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .section-reveal {
    opacity: 0;
    transform: translateY(30px);
  }
  .section-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* Service card staggered animation */
@media (prefers-reduced-motion: no-preference) {
  .service-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .service-card.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Navbar scroll state */
#nav.scrolled #navBg {
  background: rgba(5, 12, 22, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

#nav.scrolled .nav-link {
  color: rgba(255, 255, 255, 0.85);
}

/* Mobile menu */
#mobileMenu.open {
  transform: translateX(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #050c16;
}
::-webkit-scrollbar-thumb {
  background: #1b2f5c;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #34d4a8;
}

/* Selection color */
::selection {
  background: rgba(52, 212, 168, 0.3);
  color: #fff;
}