/* ─── 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; }
img { display: block; max-width: 100%; }

/* ─── Navbar scroll state ──────────────────────────────────────────────── */
#navbar.scrolled {
  background: rgba(253, 249, 243, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(4, 120, 87, 0.08), 0 4px 24px rgba(4, 120, 87, 0.06);
}

/* ─── Reveal animations (progressive enhancement — content visible without JS) ───────── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .reveal:nth-child(2) { transition-delay: 0.08s; }
  .reveal:nth-child(3) { transition-delay: 0.16s; }
  .reveal:nth-child(4) { transition-delay: 0.24s; }
  .reveal-visible {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ─── Mobile menu transitions ──────────────────────────────────────────── */
#mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease;
  opacity: 0;
}
#mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}

/* ─── Subtle hover lift for gallery images ─────────────────────────────── */
#gallery img {
  will-change: transform;
}

/* ─── Focus visible for accessibility ──────────────────────────────────── */
a:focus-visible, button:focus-visible {
  outline: 2px solid #10B981;
  outline-offset: 3px;
  border-radius: 4px;
}

/* ─── Selection color ──────────────────────────────────────────────────── */
::selection {
  background: rgba(16, 185, 129, 0.2);
  color: #064E3B;
}