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

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

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal — progressive enhancement, hidden by default for JS, shown if JS fails */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile menu */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.closed {
  opacity: 0;
  pointer-events: none;
}

/* Navbar scrolled state */
.nav-scrolled {
  background: rgba(5, 13, 26, 0.95) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(94, 234, 212, 0.1);
}

/* Hamburger animation */
.menu-open .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-open .bar:nth-child(2) {
  opacity: 0;
}
.menu-open .bar:nth-child(3) {
  width: 24px;
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Selection */
::selection {
  background: rgba(94, 234, 212, 0.3);
  color: #5EEAD4;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #050D1A;
}
::-webkit-scrollbar-thumb {
  background: #142D54;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #5EEAD4;
}
</style>