*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  overflow-x: hidden;
}

/* NAV */
#navbar {
  transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}
#navbar.scrolled {
  background-color: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.04);
}

/* SERVICE CARDS */
.service-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ANIMATIONS */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(2deg); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}
.animate-float { animation: float 4s ease-in-out infinite; }
.animate-float2 { animation: float2 5s ease-in-out infinite; }
.animate-float3 { animation: float3 6s ease-in-out infinite; }

/* SCROLL REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* MOBILE MENU */
#mobileMenu {
  animation: slideDown 0.3s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* NAV ACTIVE */
nav a.active {
  color: #0d9488;
}

/* FOCUS */
:focus-visible {
  outline: 2px solid #14b8a6;
  outline-offset: 2px;
}

/* SELECTION */
::selection {
  background-color: #ccfbf1;
  color: #134e4a;
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f8fafc; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }