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

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

  body {
    font-family: 'Inter', system-ui, sans-serif;
    color: #1e293b;
    background: #ffffff;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  /* Hero animations */
  .hero-badge {
    animation: fadeDown 0.8s ease-out both;
  }

  .hero-title {
    animation: fadeUp 0.8s ease-out 0.2s both;
  }

  .hero-sub {
    animation: fadeUp 0.8s ease-out 0.4s both;
  }

  .hero-ctas {
    animation: fadeUp 0.8s ease-out 0.6s both;
  }

  .hero-scroll {
    animation: bounce 2s infinite 1s;
  }

  @keyframes fadeDown {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(8px);
    }
    60% {
      transform: translateY(4px);
    }
  }

  /* Scroll reveal - progressive enhancement */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    }

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

    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
    .reveal:nth-child(4) { transition-delay: 0.3s; }
  }

  /* Navbar */
  #navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  #navbar.scrolled {
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
  }

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

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

  /* Focus styles */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
    border-radius: 4px;
  }

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

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

  ::-webkit-scrollbar-track {
    background: #f8fafc;
  }

  ::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
  }

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