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

/* ─── NAV ─── */
.nav {
  background: rgba(254, 253, 248, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(6, 78, 59, 0.08);
}
.nav.scrolled {
  background: rgba(254, 253, 248, 0.95);
  box-shadow: 0 1px 20px rgba(6, 78, 59, 0.08);
}
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #059669;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ─── HERO ─── */
.hero-gradient {
  background: linear-gradient(135deg, #022c22 0%, #064e3b 30%, #047857 60%, #059669 100%);
}
.hero-eyebrow {
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}
.hero-headline {
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}
.hero-sub {
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}
.hero-cta {
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}
.hero-scroll {
  opacity: 0;
  animation: fadeIn 0.8s 1.2s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ─── BUTTONS ─── */
.btn-primary { box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.btn-secondary { backdrop-filter: blur(4px); }

/* ─── SECTION EYEBROW ─── */
.section-eyebrow {
  letter-spacing: 0.2em;
}

/* ─── REVEAL ANIMATIONS (below-fold only, progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
  .reveal-up,
  .reveal-left,
  .reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal-up.is-hidden {
    opacity: 0;
    transform: translateY(32px);
  }
  .reveal-left.is-hidden {
    opacity: 0;
    transform: translateX(-40px);
  }
  .reveal-right.is-hidden {
    opacity: 0;
    transform: translateX(40px);
  }
  .reveal-up.is-visible,
  .reveal-left.is-visible,
  .reveal-right.is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ─── MOBILE MENU ─── */
.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

/* ─── CARD HOVER ─── */
.card-item {
  transition: transform 0.4s ease;
}
.card-item:hover {
  transform: translateY(-4px);
}

/* ─── FORM ─── */
input:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.3);
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #fdf8ec; }
::-webkit-scrollbar-thumb { background: #047857; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #064e3b; }