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

html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #1c1c24;
}
::-webkit-scrollbar-thumb {
  background: #525263;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #737385;
}

/* Selection */
::selection {
  background: rgba(255, 87, 51, 0.3);
  color: #fff;
}

/* Nav scroll state */
#site-header.scrolled {
  background: rgba(15, 15, 20, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(82, 82, 99, 0.3);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Mobile menu transitions */
#mobile-menu {
  animation: slideDown 0.25s ease-out;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scroll reveal base — progressive enhancement */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Focus styles */
a:focus-visible, button:focus-visible {
  outline: 2px solid #ff7852;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Image placeholder fallback */
img {
  background: linear-gradient(135deg, #27272f 0%, #32323c 100%);
  object-fit: cover;
}