#gc-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 40;
    background: rgba(10, 10, 10, 0.96);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(58, 58, 58, 0.6);
    transition: background 300ms ease, border-color 300ms ease;
  }

  #gc-navbar.is-transparent {
    background: transparent;
    border-bottom-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  #gc-navbar.scrolled {
    background: rgba(10, 10, 10, 0.96) !important;
    border-bottom-color: rgba(58, 58, 58, 0.6) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
  }

  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 68px;
    max-width: 1440px;
    margin: 0 auto;
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    text-decoration: none;
    flex-shrink: 0;
  }

  .nav-logo img {
    height: 32px;
    width: auto;
  }

  .nav-claim {
    font-family: var(--font-body);
    font-size: 0.6875rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    color: rgba(240, 240, 240, 0.5);
    text-transform: lowercase;
    display: none;
  }

  @media (min-width: 1024px) {
    .nav-claim { display: block; }
  }

  nav ul.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-link {
    display: block;
    padding: 0.5rem 0.5rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(240, 240, 240, 0.75);
    text-decoration: none;
    transition: color 200ms ease;
    white-space: nowrap;
  }

  @media (min-width: 1400px) {
    .nav-link {
      padding: 0.5rem 0.875rem;
      font-size: 0.8125rem;
      letter-spacing: 0.08em;
    }
    .nav-cta {
      padding: 0.4rem 1rem;
      margin-left: 0.5rem;
    }
    .nav-social-group {
      margin-left: 0.5rem;
      padding-left: 0.75rem;
    }
  }

  .nav-link:hover {
    color: var(--color-gc-text);
  }

  .nav-link--active {
    color: var(--color-gc-gold);
  }

  .nav-cta {
    display: block;
    padding: 0.4rem 1rem;
    margin-left: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-gc-gold);
    text-decoration: none;
    border: 1px solid rgba(232, 184, 75, 0.4);
    transition: border-color 200ms ease, background-color 200ms ease;
  }

  .nav-cta:hover {
    border-color: var(--color-gc-gold);
    background-color: rgba(232, 184, 75, 0.08);
  }

  .nav-social-group {
    display: flex;
    align-items: center;
    gap: 0.125rem;
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 1px solid rgba(255,255,255,0.1);
  }

  .nav-social {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: rgba(240,240,240,0.45);
    transition: color 200ms ease;
  }

  .nav-social:hover {
    color: var(--color-gc-gold);
  }

  .mobile-social {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem 0 0;
    margin-top: 0.5rem;
    border-top: 1px solid var(--color-gc-subtle, rgba(255,255,255,0.08));
  }

  .mobile-social a {
    display: flex;
    align-items: center;
    color: rgba(240,240,240,0.5);
    transition: color 200ms ease;
    border-bottom: none !important;
    padding: 0 !important;
    font-size: inherit;
  }

  .mobile-social a:hover {
    color: var(--color-gc-gold) !important;
  }

  /* Hamburger */
  #hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
  }

  #hamburger span {
    display: block;
    height: 1.5px;
    background: var(--color-gc-text);
    transition: transform 300ms ease, opacity 300ms ease, width 300ms ease;
  }

  #hamburger span:nth-child(1) { width: 24px; }
  #hamburger span:nth-child(2) { width: 18px; }
  #hamburger span:nth-child(3) { width: 24px; }

  #hamburger.open span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
    width: 24px;
  }
  #hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
  #hamburger.open span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
    width: 24px;
  }

  @media (max-width: 767px) {
    #gc-navbar nav { display: none; }
    #hamburger { display: flex; }
    .nav-inner { padding: 0 1.25rem; }
  }

  /* Mobile overlay */
  #mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: var(--color-gc-bg, #0a0a0a);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    transform: translateX(100%);
    transition: transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
  }

  #mobile-menu.open {
    transform: translateX(0);
    pointer-events: all;
  }

  #mobile-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  #mobile-menu a {
    display: block;
    padding: 1rem 0;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 6vw, 2.25rem);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-gc-text, #f0f0f0);
    text-decoration: none;
    border-bottom: 1px solid var(--color-gc-subtle, rgba(255,255,255,0.08));
    transition: color 200ms ease;
  }

  #mobile-menu a:hover,
  #mobile-menu a.mobile-cta {
    color: var(--color-gc-gold, #e8b84b);
  }

  #mobile-menu-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gc-text, #f0f0f0);
    opacity: 0.6;
    transition: opacity 200ms ease;
  }

  #mobile-menu-close:hover {
    opacity: 1;
  }

  .mobile-menu-logo {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    height: 24px;
    opacity: 0.25;
  }