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

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

body {
  overflow-x: hidden;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes floatDelayed {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out 0.2s forwards;
  opacity: 0;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-float-delayed {
  animation: floatDelayed 3.5s ease-in-out 0.5s infinite;
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Nav scroll state */
nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

nav.scrolled .font-display {
  color: #0f172a !important;
}

/* Service card hover */
.service-card {
  transform: translateY(0);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
}

/* Mobile menu */
#mobileMenu {
  animation: fadeIn 0.2s ease-out;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f0fdfa;
}

::-webkit-scrollbar-thumb {
  background: #99f6e4;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2dd4bf;
}

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

/* Input focus styles */
input:focus, select:focus, textarea:focus {
  outline: none;
}

/* Smooth image loading */
img {
  loading: lazy;
}