/* GACS — primary navigation */

.gacs-nav {
    display: none;
    align-items: center;
    gap: 0.15rem;
}

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

.gacs-nav-item {
    position: relative;
}

.gacs-nav-link,
.gacs-nav-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.65rem;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 0.5rem;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.gacs-nav-trigger svg {
    width: 0.75rem;
    height: 0.75rem;
    opacity: 0.7;
    transition: transform 0.25s ease;
}

.gacs-nav-item--open .gacs-nav-trigger svg,
.gacs-nav-item:hover .gacs-nav-trigger svg,
.gacs-nav-item:focus-within .gacs-nav-trigger svg {
    transform: rotate(180deg);
}

.gacs-nav-dropdown {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 50%;
    z-index: 60;
    min-width: 11.5rem;
    padding: 0.35rem;
    margin: 0;
    list-style: none;
    border-radius: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 6px);
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
    pointer-events: none;
}

.gacs-nav-item:hover .gacs-nav-dropdown,
.gacs-nav-item:focus-within .gacs-nav-dropdown,
.gacs-nav-item--open .gacs-nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
    pointer-events: auto;
}

.gacs-nav-dropdown a {
    display: block;
    padding: 0.55rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: none;
    border-radius: 0.5rem;
    transition: background-color 0.18s ease, color 0.18s ease;
}

/* Dark header — expedition navy + gold */
.gacs-header--dark .gacs-nav-link,
.gacs-header--dark .gacs-nav-trigger {
    color: rgba(255, 255, 255, 0.78);
}

.gacs-header--dark .gacs-nav-link:hover,
.gacs-header--dark .gacs-nav-trigger:hover,
.gacs-header--dark .gacs-nav-item--active > .gacs-nav-link,
.gacs-header--dark .gacs-nav-item--active > .gacs-nav-trigger {
    color: #e0b84c;
    background: rgba(255, 255, 255, 0.06);
}

.gacs-header--dark .gacs-nav-dropdown {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(11, 17, 32, 0.98);
    box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.85);
}

.gacs-header--dark .gacs-nav-dropdown a {
    color: rgba(255, 255, 255, 0.88);
}

.gacs-header--dark .gacs-nav-dropdown a:hover,
.gacs-header--dark .gacs-nav-dropdown a.is-active {
    color: #e0b84c;
    background: rgba(255, 255, 255, 0.06);
}

/* Light header */
.gacs-header--light .gacs-nav-link,
.gacs-header--light .gacs-nav-trigger {
    color: rgb(82 82 91);
}

.gacs-header--light .gacs-nav-link:hover,
.gacs-header--light .gacs-nav-trigger:hover,
.gacs-header--light .gacs-nav-item--active > .gacs-nav-link,
.gacs-header--light .gacs-nav-item--active > .gacs-nav-trigger {
    color: #0369a1;
    background: rgb(241 245 249);
}

.gacs-header--light .gacs-nav-dropdown {
    border: 1px solid rgb(228 228 231);
    background: #fff;
    box-shadow: 0 16px 40px -20px rgba(12, 25, 41, 0.2);
}

.gacs-header--light .gacs-nav-dropdown a {
    color: rgb(39 39 42);
}

.gacs-header--light .gacs-nav-dropdown a:hover,
.gacs-header--light .gacs-nav-dropdown a.is-active {
    color: #0369a1;
    background: rgb(240 249 255);
}

.gacs-nav-cta {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 2.5rem;
    padding: 0 1.1rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 9999px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

@media (min-width: 1024px) {
    .gacs-nav-cta {
        display: inline-flex;
    }
}

.gacs-header--dark .gacs-nav-cta {
    color: #071226;
    background: #e0b84c;
    box-shadow: none;
}

.gacs-header--dark .gacs-nav-cta:hover {
    background: #f0cf6a;
    transform: none;
}

.gacs-header--light .gacs-nav-cta {
    color: #071226;
    background: #d4a017;
}

.gacs-header--light .gacs-nav-cta:hover {
    background: #e0b84c;
}

/* Sticky scroll compact */
#site-header.gacs-header-scrolled .gacs-header-inner {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

#site-header.gacs-header--dark.gacs-header-scrolled {
    background: rgba(7, 18, 38, 0.96) !important;
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 18px 50px -28px rgba(0, 0, 0, 0.75);
}

#site-header.gacs-header--light.gacs-header-scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 8px 30px -16px rgba(12, 25, 41, 0.15);
}

/* Mobile menu */
.gacs-mobile-nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
}

.gacs-mobile-nav-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

.gacs-mobile-nav-panel {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
    width: min(100%, 20rem);
    height: 100%;
    max-height: 100dvh;
    padding: 1rem 1rem 1.5rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
    -webkit-overflow-scrolling: touch;
}

.gacs-mobile-nav-panel.is-open {
    transform: translateX(0);
}

.gacs-header--dark .gacs-mobile-nav-panel {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    background: #0b1120;
}

.gacs-header--light .gacs-mobile-nav-panel {
    border-left: 1px solid rgb(228 228 231);
    background: #fff;
}

.gacs-mobile-nav-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.gacs-header--light .gacs-mobile-nav-head {
    border-bottom-color: rgb(228 228 231);
}

.gacs-mobile-nav-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.5rem;
    transition: background-color 0.2s ease;
}

.gacs-header--dark .gacs-mobile-nav-close {
    color: #fff;
}

.gacs-header--dark .gacs-mobile-nav-close:hover {
    background: rgba(255, 255, 255, 0.08);
}

.gacs-header--light .gacs-mobile-nav-close {
    color: #0c1929;
}

.gacs-header--light .gacs-mobile-nav-close:hover {
    background: rgb(244 244 245);
}

.gacs-mobile-nav-link {
    display: flex;
    min-height: 2.75rem;
    align-items: center;
    padding: 0.65rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.5rem;
}

.gacs-header--dark .gacs-mobile-nav-link {
    color: rgb(228 228 231);
}

.gacs-header--dark .gacs-mobile-nav-link:hover,
.gacs-header--dark .gacs-mobile-nav-link.is-active {
    color: #e0b84c;
    background: rgba(255, 255, 255, 0.06);
}

.gacs-header--light .gacs-mobile-nav-link {
    color: rgb(39 39 42);
}

.gacs-header--light .gacs-mobile-nav-link:hover,
.gacs-header--light .gacs-mobile-nav-link.is-active {
    color: #0369a1;
    background: rgb(240 249 255);
}

.gacs-mobile-nav-group {
    margin-top: 0.25rem;
}

.gacs-mobile-nav-group summary {
    display: flex;
    min-height: 2.75rem;
    cursor: pointer;
    list-style: none;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 0.5rem;
}

.gacs-mobile-nav-group summary::-webkit-details-marker {
    display: none;
}

.gacs-header--dark .gacs-mobile-nav-group summary {
    color: rgb(161 161 170);
}

.gacs-header--light .gacs-mobile-nav-group summary {
    color: rgb(113 113 122);
}

.gacs-mobile-nav-sub {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.15rem 0 0.35rem 0.65rem;
}

.gacs-mobile-nav-sub .gacs-mobile-nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
}

.gacs-mobile-nav-cta {
    margin-top: auto;
    padding-top: 1rem;
}

.gacs-mobile-nav-cta .gacs-nav-cta {
    display: flex;
    width: 100%;
}

body.gacs-nav-open {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .gacs-nav-dropdown,
    .gacs-mobile-nav-panel,
    .gacs-mobile-nav-backdrop,
    .gacs-nav-link,
    .gacs-nav-trigger,
    .gacs-nav-cta {
        transition: none;
    }
}