/* ── Base & Utilities ── */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

/* ── Animations ── */
@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes float-delay {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-15px) scale(1.03); }
}

.animate-float {
  animation: float 8s ease-in-out infinite;
}

.animate-float-delay {
  animation: float-delay 10s ease-in-out infinite;
  animation-delay: 2s;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal[data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* ── Navbar ── */
#navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(94, 234, 212, 0.2);
  box-shadow: 0 4px 24px rgba(10, 22, 48, 0.06);
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f0fdf9;
}

::-webkit-scrollbar-thumb {
  background: #99f6e0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #5eead4;
}

/* ── Selection ── */
::selection {
  background: #5eead4;
  color: #0a1630;
}