/* Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

/* Scroll reveal — progressive enhancement, only below the fold */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .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; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  .reveal-delay-5 { transition-delay: 0.5s; }
  .reveal-delay-6 { transition-delay: 0.6s; }
}

/* Navbar scroll state */
.navbar-scrolled #navbar {
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.navbar-scrolled #navbar a.text-teal-700 {
  color: #0d9488;
}

/* Mobile menu */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Subtle image zoom on scroll for hero image */
.hero-img {
  transition: transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Thin line accent animations */
.line-accent {
  width: 0;
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.revealed .line-accent {
  width: 48px;
}

/* Custom selection color */
::selection {
  background-color: #99f6e4;
  color: #134e4a;
}
</style>