.ac-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 9999;
    background: linear-gradient(
        135deg,
        rgba(255,255,255,0.78) 0%,
        rgba(255,253,248,0.72) 50%,
        rgba(255,255,255,0.78) 100%
    );
    -webkit-backdrop-filter: saturate(180%) blur(32px) brightness(1.04);
    backdrop-filter: saturate(180%) blur(32px) brightness(1.04);
    border-bottom: 1px solid rgba(255,255,255,0.55);
    box-shadow:
        0 1px 0 rgba(201,169,110,0.12),
        0 4px 24px rgba(0,0,0,0.06),
        inset 0 1px 0 rgba(255,255,255,0.9);
}

.ac-header-spacer { height: 112px; }
#header-placeholder{display:block;height:112px}

/* ─── Top Bar ─── */
.ac-topbar { border-bottom: 1px solid rgba(0,0,0,0.07); }

.ac-topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 28px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ac-topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: rgba(0,0,0,0.55);
}
.ac-topbar-location,
.ac-topbar-nationwide {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.ac-topbar-location i { font-size: 9px; color: #C9A96E; }
.ac-topbar-nationwide {
    color: #A8863E;
    font-weight: 600;
    letter-spacing: .15em;
}
.ac-topbar-nationwide i { font-size: 9px; color: #A8863E; }

.ac-topbar-network-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    padding: 3px 11px 3px 10px;
    border: 1px solid rgba(168,134,62,0.35);
    border-radius: 100px;
    color: #A8863E;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;
    background: rgba(201,169,110,0.06);
    transition: background .2s, border-color .2s, color .2s, transform .2s;
}
.ac-topbar-network-btn i { font-size: 8px; opacity: .75; transition: transform .2s; }
.ac-topbar-network-btn:hover {
    background: rgba(201,169,110,0.14);
    border-color: #C9A96E;
    color: #8a6c2a;
    transform: translateY(-1px);
}
.ac-topbar-network-btn:hover i { transform: translate(1px, -1px); }

.ac-topbar-right { display: flex; align-items: center; gap: 20px; }

.ac-topbar-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px 6px 13px;
    background: linear-gradient(135deg, #C9A96E 0%, #A8863E 100%);
    border-radius: 100px;
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .04em;
    box-shadow: 0 2px 12px rgba(168,134,62,0.35);
    transition: box-shadow .2s, transform .2s, background .2s;
}
.ac-topbar-phone:hover {
    background: linear-gradient(135deg, #D9B97E 0%, #B8963E 100%);
    box-shadow: 0 4px 18px rgba(168,134,62,0.5);
    transform: translateY(-1px);
    color: #fff;
}
.ac-topbar-phone i { font-size: 10px; color: rgba(255,255,255,0.85); }

.ac-topbar-sep { width: 1px; height: 16px; background: rgba(0,0,0,0.1); }
.ac-topbar-social { display: flex; align-items: center; gap: 12px; }
.ac-topbar-social a { display:inline-flex;align-items:center;gap:7px;color:#A8863E;text-decoration:none;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;transition:color .2s,transform .2s; }
.ac-topbar-social a i{font-size:17px}
.ac-topbar-social a:hover { color: #1E1208; transform:translateY(-1px); }

/* ─── Nav Bar ─── */
.ac-nav { height: 76px; display: flex; align-items: center; width: 100%; }

.ac-nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%; height: 100%;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 8px;
}

.ac-logo-link { display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ac-logo-img  { height: 68px; width: auto; display: block; transition: opacity .25s; }
.ac-logo-link:hover .ac-logo-img { opacity: .8; }

.ac-nav-list  { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 2px; }
.ac-nav-left  { justify-content: flex-end; }
.ac-nav-right { justify-content: flex-start; }

.ac-nav-link {
    color: rgba(0,0,0,0.85);
    text-decoration: none;
    font-size: 16px;
    letter-spacing: -0.01em;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: 6px;
    transition: color .2s, background .2s;
    white-space: nowrap;
    display: block;
}
.ac-nav-link:hover { color: #000; background: rgba(0,0,0,0.06); text-decoration: none; }
.ac-nav-link.active { color: #A8863E; font-weight: 500; }

/* Events dropdown */
.ac-nav-item { position: relative; }
.ac-nav-item:hover .ac-nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }

.ac-nav-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: #fff;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
    padding: 8px;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s, visibility .22s, transform .22s cubic-bezier(.22,1,.36,1);
    z-index: 100;
}
.ac-nav-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: rgba(0,0,0,0.75);
    text-decoration: none;
    font-size: 13px;
    border-radius: 8px;
    transition: background .15s, color .15s;
    white-space: nowrap;
}
.ac-nav-dropdown a i {
    width: 18px;
    color: #C9A96E;
    font-size: 11px;
    flex-shrink: 0;
}
.ac-nav-dropdown a:hover { background: rgba(201,169,110,0.08); color: #000; }

/* Dropdown caret indicator */
.ac-nav-link-has-dropdown::after {
    content: '';
    display: inline-block;
    width: 4px; height: 4px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    margin-left: 5px;
    opacity: 0.5;
}

/* ─── Hamburger ─── */
.ac-hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    transition: background .2s;
    flex-shrink: 0;
    position: relative;
    margin-left: auto;
}
.ac-hamburger:hover { background: rgba(0,0,0,.06); }

.ac-bar {
    display: block;
    width: 18px; height: 1.5px;
    background: rgba(0,0,0,0.8);
    border-radius: 2px;
    position: absolute;
    transform-origin: center;
    transition: transform .35s cubic-bezier(.4,0,.2,1), opacity .35s cubic-bezier(.4,0,.2,1);
}
.ac-bar-1 { transform: translateY(-5px); }
.ac-bar-2 { transform: translateY(0); }
.ac-bar-3 { transform: translateY(5px); }
.ac-hamburger.is-open .ac-bar-1 { transform: translateY(0) rotate(45deg); }
.ac-hamburger.is-open .ac-bar-2 { opacity: 0; transform: scaleX(0); }
.ac-hamburger.is-open .ac-bar-3 { transform: translateY(0) rotate(-45deg); }

/* ─── Mobile Menu ─── */
.ac-mobile-menu {
    position: fixed;
    top: 112px; right: 0; bottom: 0; left: 0;
    z-index: 9998;
    background: linear-gradient(
        160deg,
        rgba(255,255,255,0.96) 0%,
        rgba(255,253,248,0.94) 50%,
        rgba(255,255,255,0.96) 100%
    );
    -webkit-backdrop-filter: saturate(180%) blur(28px) brightness(1.03);
    backdrop-filter: saturate(180%) blur(28px) brightness(1.03);
    display: flex;
    flex-direction: column;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(100%);
    transition: transform .44s cubic-bezier(.76,0,.24,1), visibility 0s linear .44s;
}
.ac-mobile-menu.is-open {
    visibility: visible;
    pointer-events: all;
    transform: translateX(0);
    transition: transform .44s cubic-bezier(.76,0,.24,1), visibility 0s linear 0s;
}
.ac-mobile-menu::before {
    content: '';
    display: block;
    height: 1px;
    background: linear-gradient(90deg, transparent, #C9A96E 40%, #C9A96E 60%, transparent);
    flex-shrink: 0;
}
.ac-hamburger.is-open {
    border-radius: 50%;
    border: 1.5px solid rgba(201,169,110,0.55);
    background: rgba(201,169,110,0.06);
}
.ac-hamburger.is-open .ac-bar { background: #A8863E; width: 16px; }

.ac-mobile-nav {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    flex: 1;
    padding: 36px 40px 48px;
    overflow-y: auto;
}
.ac-mobile-list { list-style: none; margin: 0; padding: 0; }
.ac-mobile-list li {
    border-bottom: 1px solid rgba(201,169,110,0.15);
    opacity: 0;
    transform: translateY(22px);
    transition:
        opacity .42s cubic-bezier(.22,1,.36,1) calc(var(--i, 0) * 65ms + 80ms),
        transform .42s cubic-bezier(.22,1,.36,1) calc(var(--i, 0) * 65ms + 80ms);
}
.ac-mobile-menu.is-open .ac-mobile-list li { opacity: 1; transform: translateY(0); }
.ac-mobile-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    color: #1a1610;
    text-decoration: none;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.03em;
    font-family: 'Cormorant Garamond', Georgia, serif;
    transition: color .2s, padding-left .22s;
}
.ac-mobile-list a::after {
    content: '→';
    font-size: 20px;
    font-weight: 400;
    color: rgba(201,169,110,0.45);
    transition: color .2s, transform .25s;
    flex-shrink: 0;
}
.ac-mobile-list a:hover { color: #C9A96E; padding-left: 6px; }
.ac-mobile-list a:hover::after { color: #C9A96E; transform: translateX(5px); }

.ac-mobile-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 28px;
    margin-top: 16px;
    border-top: 1px solid rgba(201,169,110,0.25);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .4s cubic-bezier(.22,1,.36,1) .52s, transform .4s cubic-bezier(.22,1,.36,1) .52s;
}
.ac-mobile-menu.is-open .ac-mobile-footer { opacity: 1; transform: translateY(0); }
.ac-mobile-tel {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #C9A96E;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: opacity .2s;
}
.ac-mobile-tel:hover { opacity: .75; color: #C9A96E; }
.ac-mobile-tel i { font-size: 11px; }
.ac-mobile-socials { display: flex; gap: 18px; }
.ac-mobile-socials a { display:inline-flex;align-items:center;gap:8px;color:#A8863E;font-size:14px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;transition:color .2s; }
.ac-mobile-socials a i{font-size:20px}
.ac-mobile-socials a:hover { color: #C9A96E; }

/* ─── Responsive ─── */
/* ─── Aviation Hub mobile button ─── */
.ac-mobile-hub-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 24px 0 4px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(201,169,110,.12) 0%, rgba(168,134,62,.08) 100%);
    border: 1px solid rgba(201,169,110,.35);
    border-radius: 14px;
    text-decoration: none;
    transition: background .25s, border-color .25s, transform .22s;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .4s cubic-bezier(.22,1,.36,1) .7s, transform .4s cubic-bezier(.22,1,.36,1) .7s, background .25s, border-color .25s;
}
.ac-mobile-menu.is-open .ac-mobile-hub-btn { opacity: 1; transform: translateY(0); }
.ac-mobile-hub-btn:hover { background: linear-gradient(135deg,rgba(201,169,110,.2) 0%,rgba(168,134,62,.14) 100%); border-color: #C9A96E; transform: translateY(-2px); }
.ac-mobile-hub-icon {
    width: 42px; height: 42px; flex-shrink: 0;
    background: linear-gradient(135deg,#C9A96E,#A8863E);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 14px rgba(168,134,62,.35);
}
.ac-mobile-hub-icon i { color: #fff; font-size: 16px; }
.ac-mobile-hub-text { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.ac-mobile-hub-label { font-size: 10px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: rgba(168,134,62,.7); }
.ac-mobile-hub-name { font-size: 17px; font-weight: 700; letter-spacing: -.02em; color: #1a1610; font-family: 'Cormorant Garamond', Georgia, serif; }
.ac-mobile-hub-ext { color: rgba(201,169,110,.6); font-size: 11px; flex-shrink: 0; }

@media (max-width: 960px) {
    .ac-header,
    .ac-mobile-menu {
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }
    .ac-nav-left    { display: none; }
    .ac-nav-right   { display: none; }
    .ac-hamburger   { display: flex; }
    .ac-nav-content { grid-template-columns: auto 1fr auto; }
    .ac-logo-link   { justify-content: flex-start; }
    .ac-logo-img    { height: 44px; }
    .ac-topbar-left { display: none; }
    .ac-nav         { overflow: visible; }
    .ac-header      { overflow: visible; }
}
@media (max-width: 600px) {
    .ac-mobile-list a { font-size: 24px; padding: 16px 0; }
    .ac-logo-img    { height: 40px; }
}
@media (max-width: 400px) {
    .ac-topbar-inner { padding: 0 12px; height: 32px; }
    .ac-topbar-sep, .ac-topbar-social { display: none; }
    .ac-nav-content { padding: 0 12px; }
    .ac-logo-img    { height: 36px; }
    .ac-header-spacer { height: 80px; }
    #header-placeholder{height:80px}
    .ac-mobile-menu { top: 80px; }
    .ac-mobile-nav  { padding: 24px 20px 36px; }
}