/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; }
img, video { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@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; }
}

/* ===== HEADER SCROLLED STATE ===== */
#site-header.scrolled {
  box-shadow: 0 1px 0 rgba(11, 29, 58, 0.06);
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  animation: slideDown 0.25s ease-out;
}
#mobile-menu.hidden {
  animation: slideUp 0.2s ease-in forwards;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-8px); }
}

/* ===== FOCUS VISIBLE ===== */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid #6EE7B7;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== SUBTLE SELECTION ===== */
::selection {
  background: rgba(110, 231, 183, 0.2);
  color: #0B1D3A;
}