/* ========== BASE & RESET ========== */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
  img { display: block; max-width: 100%; }

  /* ========== NAVBAR ========== */
  #navbar {
    background: rgba(255, 255, 255, 0.0);
    transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
  }
  #navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  }

  /* ========== MOBILE MENU ========== */
  #mobile-menu.open { opacity: 1 !important; pointer-events: all !important; }
  .menu-line:nth-child(3) { width: 1.25rem; }
  #menu-btn.active .menu-line:nth-child(1) { transform: rotate(45deg) translate(0.15rem, 0.15rem); }
  #menu-btn.active .menu-line:nth-child(2) { opacity: 0; }
  #menu-btn.active .menu-line:nth-child(3) { transform: rotate(-45deg) translate(0.15rem, -0.15rem); width: 1.25rem; }

  /* ========== HERO ========== */
  .hero-tag { animation: fadeUp 0.8s ease both; }
  #hero h1 { animation: fadeUp 0.8s 0.1s ease both; }
  #hero p { animation: fadeUp 0.8s 0.2s ease both; }
  #hero .flex-wrap { animation: fadeUp 0.8s 0.3s ease both; }
  #hero .mt-16 { animation: fadeUp 0.8s 0.4s ease both; }
  #hero .absolute.top-8 { animation: fadeRight 0.9s 0.3s ease both; }
  #hero .absolute.bottom-16 { animation: fadeLeft 0.8s 0.5s ease both; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeRight {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
  }
  @keyframes fadeLeft {
    from { opacity: 0; transform: translateX(-24px); }
    to   { opacity: 1; transform: translateX(0); }
  }

  /* ========== SERVICE CARDS ========== */
  .service-card {
    transform: translateY(0);
  }
  .service-card:hover {
    transform: translateY(-4px);
  }

  /* ========== GALLERY ========== */
  .gallery-item {
    cursor: pointer;
  }
  .gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: inherit;
  }
  .gallery-item:hover::after { opacity: 1; }
  .gallery-item { position: relative; }

  /* ========== FAQ ========== */
  .faq-item { transition: box-shadow 0.3s ease; }
  .faq-item[open] { box-shadow: 0 4px 24px rgba(0,0,0,0.06); }
  .faq-item summary::-webkit-details-marker { display: none; }

  /* ========== SCROLL REVEAL (progressive enhancement) ========== */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s 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; }
  }
  /* Fallback: always visible if JS is disabled or reduced-motion */
  @media not all and (prefers-reduced-motion: no-preference) {
    .reveal { opacity: 1; transform: none; }
  }
  html.no-js .reveal { opacity: 1; transform: none; }