/* Base & Typography */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #fdf9ef;
}
::-webkit-scrollbar-thumb {
  background: #047857;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #065f46;
}

/* Navigation */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: #047857;
  transition: all 0.25s ease;
  transform: translateX(-50%);
}
.nav-link:hover::after {
  width: 60%;
}

/* Mobile menu */
.mobile-link {
  display: block;
}

/* Hero animations - only for below-fold progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
  .hero-float {
    animation: float 6s ease-in-out infinite;
  }
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }
}

/* Scroll reveal - progressive enhancement only */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #047857;
  outline-offset: 2px;
}

/* Button hover lift effect */
button, a {
  transition: all 0.2s ease;
}

/* Image lazy loading placeholder */
img {
  background-color: #d1fae5;
}