*, *::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(132, 26, 50, 0.15);
  color: #3f0a16;
}

/* Scroll reveal — progressive enhancement, only active when JS runs */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* Navbar transition */
#nav.scrolled {
  box-shadow: 0 1px 0 rgba(132, 26, 50, 0.08);
}

/* Hamburger animation */
#menu-btn.active .menu-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
#menu-btn.active .menu-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
#menu-btn.active .menu-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  width: 1.5rem;
}

/* Input focus styles */
input:focus, textarea:focus {
  border-bottom-color: #841a32 !important;
}

/* Smooth image loading */
img {
  image-rendering: auto;
}

/* Subtle page transitions */
@media (prefers-reduced-motion: no-preference) {
  a, button {
    transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  }
}