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

  body {
    overflow-x: hidden;
  }

  /* Animations */
  @keyframes fade-up {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

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

  .animate-fade-up:nth-child(2) {
    animation-delay: 0.15s;
  }

  .animate-fade-up:nth-child(3) {
    animation-delay: 0.3s;
  }

  .animate-fade-up:nth-child(4) {
    animation-delay: 0.45s;
  }

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

  .animate-bounce-slow {
    animation: bounce-slow 2s ease-in-out infinite;
  }

  /* Scroll reveal */
  .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }

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

  /* Navbar scrolled state */
  #navbar.scrolled {
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
  }

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

  ::-webkit-scrollbar-track {
    background: #f1f5f9;
  }

  ::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 999px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
  }

  /* Selection */
  ::selection {
    background: #99f6e4;
    color: #042f2e;
  }

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

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Form select arrow */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    appearance: none;
  }

  /* Smooth image loading */
  img {
    opacity: 1;
    transition: opacity 0.3s ease;
  }

  /* Focus visible */
  :focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
    border-radius: 8px;
  }