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

/* ========== ANIMATIONS ========== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
@keyframes float-delayed {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}
.animate-float       { animation: float 4s ease-in-out infinite; }
.animate-float-delayed { animation: float-delayed 5s ease-in-out infinite 1s; }

/* ========== SCROLL REVEAL ========== */
.scroll-reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(28px);
  }
  .scroll-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
  /* stagger children */
  .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
  .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
  .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
  .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
  .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }
}

/* ========== NAVBAR SCROLLED STATE ========== */
.navbar-scrolled {
  background: rgba(253, 252, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(27, 67, 50, 0.08);
}

/* ========== SELECTION ========== */
::selection {
  background: #1B4332;
  color: #FDFCF8;
}