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

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

  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  ::selection {
    background: #d4a017;
    color: #0d1f3c;
  }

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

  #navbar.scrolled {
    background: rgba(13, 31, 60, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  }

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

  .menu-line {
    transform-origin: center;
  }

  #menuBtn.active .menu-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  #menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }

  #menuBtn.active .menu-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    width: 24px;
  }

  /* ===== SERVICE CARDS ===== */
  .service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  }

  /* ===== GALLERY ===== */
  .gallery-item {
    transition: transform 0.3s ease;
  }

  .gallery-item:hover {
    transform: translateY(-4px);
  }

  /* ===== SCROLL REVEAL (progressive enhancement) ===== */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.6s ease, transform 0.6s 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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
  }

  /* ===== FORM ===== */
  select option {
    background: #1a3a5c;
    color: #ffffff;
  }

  /* ===== CUSTOM SCROLLBAR ===== */
  ::-webkit-scrollbar {
    width: 8px;
  }

  ::-webkit-scrollbar-track {
    background: #0d1f3c;
  }

  ::-webkit-scrollbar-thumb {
    background: #2d5f8f;
    border-radius: 4px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #d4a017;
  }

  /* ===== MOBILE NAV LINKS ===== */
  .mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

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

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