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

/* ── Navbar ── */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#navbar.scrolled {
  background: rgba(245, 240, 250, 0.85);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(91, 58, 140, 0.08);
}

/* ── Floating stat cards ── */
.float-card-1 { animation: float1 6s ease-in-out infinite; }
.float-card-2 { animation: float2 7s ease-in-out infinite; }
.float-card-3 { animation: float3 5.5s ease-in-out infinite; }
.float-card-4 { animation: float4 6.5s ease-in-out infinite; }

@keyframes float1 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(1deg); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}
@keyframes float4 {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  50% { transform: translateY(-8px) translateX(4px); }
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal[data-reveal-state="hidden"] {
  opacity: 0;
  transform: translateY(32px);
}
.reveal[data-reveal-state="visible"] {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal[data-reveal-state="visible"] > * {
  animation: revealChild 0.5s ease forwards;
}
@keyframes revealChild {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile menu ── */
#mobile-menu {
  animation: slideDown 0.3s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Nav active link ── */
nav a.active {
  color: #5B3A8C !important;
  background: rgba(91, 58, 140, 0.08) !important;
}

/* ── Selection ── */
::selection {
  background: rgba(91, 58, 140, 0.15);
  color: #2a1c42;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}