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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(255, 107, 47, 0.3);
  color: #f6f6f6;
}

/* Fade-up animation for hero elements */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fadeUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Scroll reveal — progressive enhancement, visible by default */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(32px);
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: #141414;
}
::-webkit-scrollbar-thumb {
  background: #3d3d3d;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #ff6b2f;
}

/* Subtle line dividers */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 107, 47, 0.2), transparent);
}

/* Input autofill override for dark theme */
input:-webkit-autofill,
textarea:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 30px #1f1f1f inset !important;
  -webkit-text-fill-color: #f6f6f6 !important;
  caret-color: #f6f6f6;
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 1px solid rgba(255, 107, 47, 0.5);
  outline-offset: 4px;
}

/* Mobile menu transitions */
#mobile-menu {
  animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 400px;
  }
}

#mobile-menu.hidden {
  animation: slideUp 0.25s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes slideUp {
  from {
    opacity: 1;
    max-height: 400px;
  }
  to {
    opacity: 0;
    max-height: 0;
  }
}

/* Nav scroll state */
.nav-scrolled #nav {
  background: rgba(20, 20, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav-scrolled #nav header div {
  backdrop-filter: blur(12px);
}