/* ─── Global ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

/* ─── Navigation ─── */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

#navbar.scrolled {
  background: rgba(253, 253, 248, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(46, 74, 47, 0.08);
}

/* ─── Hero Animations ─── */
.hero-elem {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.7s ease forwards;
}
.hero-elem:nth-child(1) { animation-delay: 0.1s; }
.hero-elem:nth-child(2) { animation-delay: 0.2s; }
.hero-elem:nth-child(3) { animation-delay: 0.3s; }
.hero-elem:nth-child(4) { animation-delay: 0.4s; }
.hero-elem:nth-child(5) { animation-delay: 0.5s; }

.hero-img-elem {
  opacity: 0;
  transform: translateY(32px) scale(0.97);
  animation: fadeUpImg 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: 0.3s;
}
.hero-scroll {
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
  animation-delay: 1s;
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUpImg {
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}

/* ─── Scroll Reveal (below-fold only) ─── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
/* Hidden by default for progressive enhancement */
.reveal[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
}
@media (prefers-reduced-motion: no-preference) {
  .reveal[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ─── Mobile Menu ─── */
.mobile-link { display: block; }

/* ─── Image hover ─── */
img { max-width: 100%; height: auto; }