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

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

  body {
    margin: 0;
    overflow-x: hidden;
  }

  ::selection {
    background: rgba(55, 185, 134, 0.3);
    color: #fff;
  }

  /* ========== HERO ANIMATIONS ========== */
  .hero-eyebrow {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.3s;
  }

  .hero-headline {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.5s;
  }

  .hero-subtitle {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.7s;
  }

  .hero-ctas {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.9s;
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(24px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ========== SECTION REVEAL (below fold) ========== */
  .reveal-section {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

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

  /* ========== NAVBAR ========== */
  #navbar {
    background: transparent;
  }

  #navbar.scrolled {
    background: rgba(9, 15, 40, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
  }

  #navbar.scrolled .hero-eyebrow,
  #navbar.scrolled .hero-headline,
  #navbar.scrolled .hero-subtitle {
    animation: none;
    opacity: 1;
    transform: none;
  }

  /* ========== SECTION HEADERS ========== */
  .section-eyebrow {
    display: block;
  }

  .section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
  }

  /* ========== MOBILE MENU ========== */
  #mobile-menu.open {
    opacity: 1;
    pointer-events: all;
  }

  #mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
  }

  .mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  #mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
  }

  #mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
  #mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
  #mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
  #mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
  #mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

  /* ========== HAMBURGER ANIMATION ========== */
  #menu-icon span:nth-child(1) {
    transform-origin: center;
  }
  #menu-icon span:nth-child(2) {
    transform-origin: center;
  }
  #menu-icon span:nth-child(3) {
    transform-origin: center;
  }

  body.menu-open #menu-icon span:nth-child(1) {
    transform: translateY(3.5px) rotate(45deg);
  }
  body.menu-open #menu-icon span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  body.menu-open #menu-icon span:nth-child(3) {
    transform: translateY(-3.5px) rotate(-45deg);
    width: 1.5rem;
  }

  /* ========== IMAGE HOVER ========== */
  .group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
  }

  /* ========== PREFERS REDUCED MOTION ========== */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }

    html {
      scroll-behavior: auto;
    }

    .reveal-section {
      opacity: 1;
      transform: none;
    }
  }

  /* ========== RESPONSIVE ========== */
  @media (max-width: 640px) {
    .hero-headline {
      font-size: 2.75rem;
    }

    .floating-card {
      position: relative;
      margin-top: 1rem;
    }
  }