/* Base */
  *, *::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%; }
  a { text-decoration: none; }
  ::selection { background: rgba(212, 175, 55, 0.3); color: #fff; }

  /* Gold line animation for section headers */
  .gold-line-above {
    position: relative;
    display: inline-block;
  }
  .gold-line-above::before {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: currentColor;
    margin: 0 auto 12px;
    opacity: 0.6;
  }

  /* Nav scroll state */
  #nav.scrolled {
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(212, 175, 55, 0.08);
  }
  #nav.scrolled .nav-link { color: rgba(148, 163, 184, 0.8); }

  /* Mobile menu */
  #mobile-menu.open { opacity: 1; pointer-events: all; }
  #mobile-menu.closed { opacity: 0; pointer-events: none; }
  #menu-btn.active #bar1 { transform: rotate(45deg) translate(3px, 3px); }
  #menu-btn.active #bar2 { opacity: 0; }
  #menu-btn.active #bar3 { transform: rotate(-45deg) translate(3px, -3px); width: 24px; }

  /* Scroll reveal — progressive enhancement via JS */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 1;
      transform: translateY(0);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }
  }
  /* Default state is visible — JS adds .revealed class */
  .reveal {
    opacity: 1;
    transform: translateY(0);
  }

  /* Hero scroll indicator pulse */
  @keyframes pulse-down {
    0%, 100% { opacity: 0.4; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(6px); }
  }
  .scroll-indicator { animation: pulse-down 2s ease-in-out infinite; }

  /* Subtle gold shimmer on hover for cards */
  .gold-card-hover:hover {
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.08);
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #020617; }
  ::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #334155; }

  /* Mobile menu link animations */
  .mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
  }
  #mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
  }
  #mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
  #mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
  #mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
  #mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
  #mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

  /* Form select arrow */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 36px;
  }

  /* Input date picker styling */
  input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.6) sepia(1) saturate(5) hue-rotate(3deg);
    cursor: pointer;
  }