/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { min-height: 100vh; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, video { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 1; transform: none; transition: opacity 0.8s ease, transform 0.8s ease; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Hero Animations ── */
@media (prefers-reduced-motion: no-preference) {
  .hero-line { display: block; transform: translateY(105%); animation: heroSlideUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) both; }
  .hero-tag  { opacity: 0; animation: heroFadeIn 0.7s 0.3s ease both; }
  .hero-fade { opacity: 0; animation: heroFadeIn 0.7s 0.5s ease both; }
  .hero-fade:nth-of-type(2) { animation-delay: 0.6s; }
  .hero-fade:nth-of-type(3) { animation-delay: 0.7s; }
  .hero-fade:nth-of-type(4) { animation-delay: 0.8s; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-line, .hero-tag, .hero-fade { opacity: 1; transform: none; animation: none; }
}

@keyframes heroSlideUp {
  from { transform: translateY(105%); }
  to   { transform: translateY(0); }
}
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Buttons ── */
.btn-primary, .btn-secondary {
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.btn-primary:hover::after { opacity: 1; }

/* ── Nav Link Underline ── */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #5EEAD4;
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-link:hover::after { width: 100%; }

/* ── Mobile Menu Transitions ── */
.mobile-link {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}
#mobile-menu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}
#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }
#mobile-menu.open .mobile-link:nth-child(6) { transition-delay: 0.35s; }

/* ── Menu Item Hover ── */
.group:hover .group-hover\:text-mint-300 { color: #6dd4b4; }

/* ── Form Focus States ── */
input:focus, select:focus, textarea:focus {
  border-color: rgba(94, 234, 212, 0.6) !important;
  box-shadow: 0 0 0 1px rgba(94, 234, 212, 0.15);
}

/* ── Selection ── */
::selection {
  background: rgba(94, 234, 212, 0.2);
  color: #f0f4f8;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0A1628; }
::-webkit-scrollbar-thumb { background: #16466e; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #3d7298; }