/* ─── GLOBAL ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ─── NAV ─── */
#site-header {
  background: rgba(253, 252, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
#site-header.scrolled {
  box-shadow: 0 1px 20px rgba(27, 67, 50, 0.08);
}
.nav-link { position: relative; }
.nav-link:hover { color: #1B4332; }

/* ─── MOBILE MENU ─── */
#mobile-menu {
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.mobile-link { transition: background 0.15s; }

/* ─── FLOATING CARDS ─── */
.float-card-1 { animation: floatA 4s ease-in-out infinite; }
.float-card-2 { animation: floatB 4.5s ease-in-out infinite; }
.float-card-3 { animation: floatC 5s ease-in-out infinite; }
.float-card-4 { animation: floatD 3.5s ease-in-out infinite; }

@keyframes floatA {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
@keyframes floatB {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(10px); }
}
@keyframes floatC {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}
@keyframes floatD {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%       { transform: translateY(6px) rotate(1deg); }
}

/* ─── REVEAL ANIMATIONS ─── */
.reveal-up,
.reveal-grid {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .reveal-grid {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .reveal-up.visible,
  .reveal-grid.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── SCROLL INDICATOR ─── */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(4px); }
}

/* ─── FOCUS STYLES ─── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid #52a352;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ─── SELECTION ─── */
::selection {
  background: #aed6ae;
  color: #1B4332;
}