:root {
    --desktop-header-top: 24px;
    --desktop-header-pill-height: 40px;
    --desktop-header-pill-padding-x: 14px;
    --desktop-header-pill-gap: 8px;
    --desktop-header-chip-radius: 999px;
}

@keyframes homeHeaderSweep {
    0% { transform: translateX(-140%); }
    100% { transform: translateX(140%); }
}

@media (min-width: 769px) {
    #horizontal-nav-bar.site-nav-shell {
        position: fixed;
        top: var(--desktop-header-top);
        left: 50%;
        transform: translateX(-50%);
        z-index: 2200;
        width: auto;
        pointer-events: none;
        background: transparent;
        border: 0;
        box-shadow: none;
    }

    #horizontal-nav-bar.site-nav-shell #nav-items-container {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: var(--desktop-header-pill-height);
        min-height: var(--desktop-header-pill-height);
        padding: 0 var(--desktop-header-pill-padding-x);
        gap: 18px;
        border-radius: var(--desktop-header-chip-radius);
        box-sizing: border-box;
        pointer-events: auto;
        position: relative;
        overflow: hidden;
        line-height: var(--desktop-header-pill-height);
    }

    #header-actions.site-nav-actions {
        position: fixed;
        top: var(--desktop-header-top);
        right: 32px;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        height: var(--desktop-header-pill-height);
        min-height: var(--desktop-header-pill-height);
        pointer-events: auto;
    }

    #header-actions.site-nav-actions .header-action-chip {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: var(--desktop-header-pill-gap);
        height: var(--desktop-header-pill-height);
        min-height: var(--desktop-header-pill-height);
        padding: 0 var(--desktop-header-pill-padding-x);
        border-radius: var(--desktop-header-chip-radius);
        box-sizing: border-box;
        white-space: nowrap;
        position: relative;
        overflow: hidden;
        line-height: var(--desktop-header-pill-height);
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.08em;
    }

    #header-actions.site-nav-actions .dropdown-trigger {
        position: relative;
        cursor: pointer;
        overflow: visible;
    }

    #header-actions.site-nav-actions .dropdown-trigger.header-action-chip {
        overflow: visible !important;
    }

    #header-actions.site-nav-actions #header-bmac-link {
        text-decoration: none;
    }

    body.home-page #horizontal-nav-bar.site-nav-shell #nav-items-container,
    body.home-page #header-actions.site-nav-actions .header-action-chip {
        background: rgba(10, 14, 18, 0.35);
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    body.home-page #horizontal-nav-bar.site-nav-shell #nav-items-container::before,
    body.home-page #header-actions.site-nav-actions .header-action-chip::before {
        content: "";
        position: absolute;
        inset: 0;
        border-radius: inherit;
        pointer-events: none;
        background: linear-gradient(110deg, transparent 18%, rgba(255, 255, 255, 0.1) 50%, transparent 82%);
        opacity: 0.08;
        transform: translateX(-140%);
        animation: homeHeaderSweep 5.4s linear infinite;
    }

    body.home-page #horizontal-nav-bar.site-nav-shell #nav-items-container:hover::before,
    body.home-page #header-actions.site-nav-actions .header-action-chip:hover::before {
        opacity: 0.12;
        animation-duration: 4.2s;
    }

    body.inner-page #horizontal-nav-bar.site-nav-shell #nav-items-container,
    body.inner-page #header-actions.site-nav-actions .header-action-chip,
    body.content-page #horizontal-nav-bar.site-nav-shell #nav-items-container,
    body.content-page #header-actions.site-nav-actions .header-action-chip {
        background: rgba(246, 242, 235, 0.9);
        border: 1px solid rgba(122, 103, 78, 0.12);
        box-shadow: 0 6px 16px rgba(15, 23, 40, 0.06);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    body.inner-page #horizontal-nav-bar.site-nav-shell #nav-items-container::before,
    body.inner-page #header-actions.site-nav-actions .header-action-chip::before,
    body.content-page #horizontal-nav-bar.site-nav-shell #nav-items-container::before,
    body.content-page #header-actions.site-nav-actions .header-action-chip::before {
        content: none;
    }

    #horizontal-nav-bar.site-nav-shell .nav-item {
        height: var(--desktop-header-pill-height);
        display: inline-flex;
        align-items: center;
        line-height: var(--desktop-header-pill-height);
        padding: 0;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.08em;
        text-decoration: none;
        position: relative;
    }

    body.home-page #horizontal-nav-bar.site-nav-shell .nav-item,
    body.home-page #header-actions.site-nav-actions .dropdown-header,
    body.home-page #header-actions.site-nav-actions #header-bmac-link {
        color: rgba(244, 237, 227, 0.82);
    }

    body.inner-page #horizontal-nav-bar.site-nav-shell .nav-item,
    body.inner-page #header-actions.site-nav-actions .dropdown-header,
    body.inner-page #header-actions.site-nav-actions #header-bmac-link,
    body.content-page #horizontal-nav-bar.site-nav-shell .nav-item,
    body.content-page #header-actions.site-nav-actions .dropdown-header,
    body.content-page #header-actions.site-nav-actions #header-bmac-link {
        color: rgba(24, 34, 49, 0.78);
    }

    #horizontal-nav-bar.site-nav-shell .nav-item::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 7px;
        width: 0;
        height: 2px;
        transform: translateX(-50%);
        border-radius: 999px;
        transition: width 0.25s ease;
    }

    body.home-page #horizontal-nav-bar.site-nav-shell .nav-item::after {
        background: linear-gradient(90deg, rgba(255, 184, 108, 0), #ffbe72, rgba(255, 123, 0, 0.96), rgba(255, 184, 108, 0));
    }

    body.inner-page #horizontal-nav-bar.site-nav-shell .nav-item::after,
    body.content-page #horizontal-nav-bar.site-nav-shell .nav-item::after {
        background: linear-gradient(90deg, rgba(208, 123, 40, 0), rgba(208, 123, 40, 0.95), rgba(208, 123, 40, 0));
    }

    #horizontal-nav-bar.site-nav-shell .nav-item:hover::after,
    #horizontal-nav-bar.site-nav-shell .nav-item.active::after {
        width: calc(100% + 4px);
    }

    #header-actions.site-nav-actions .dropdown-trigger {
        cursor: pointer;
    }

    #header-actions.site-nav-actions .dropdown-header {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.08em;
        line-height: 1;
    }

    #header-actions.site-nav-actions #header-bmac-link .header-bmac-text {
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.08em;
        line-height: 1;
    }

    #header-actions.site-nav-actions .dropdown-icon,
    #header-actions.site-nav-actions #header-bmac-link .material-symbols-outlined {
        font-size: 15px;
        color: #ffb86c;
        line-height: 1;
    }

    body.inner-page #header-actions.site-nav-actions .dropdown-icon,
    body.inner-page #header-actions.site-nav-actions #header-bmac-link .material-symbols-outlined,
    body.content-page #header-actions.site-nav-actions .dropdown-icon,
    body.content-page #header-actions.site-nav-actions #header-bmac-link .material-symbols-outlined {
        color: #d07b28;
    }

    #header-actions.site-nav-actions .dropdown-content {
        position: absolute;
        top: calc(100% + 10px);
        left: 50%;
        transform: translateX(-50%) translateY(8px);
        min-width: 132px;
        border-radius: 15px;
        opacity: 0;
        visibility: hidden;
        transition: all 0.2s ease;
        overflow: hidden;
        z-index: 2300;
        display: flex;
        flex-direction: column;
    }

    body.home-page #header-actions.site-nav-actions .dropdown-content {
        background: rgba(14, 20, 29, 0.92);
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
    }

    body.inner-page #header-actions.site-nav-actions .dropdown-content,
    body.content-page #header-actions.site-nav-actions .dropdown-content {
        background: rgba(243, 239, 231, 0.97);
        border: 1px solid rgba(122, 103, 78, 0.12);
        box-shadow: 0 12px 24px rgba(15, 23, 40, 0.08);
    }

    #header-actions.site-nav-actions .dropdown-trigger.is-open .dropdown-content {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

    #header-actions.site-nav-actions .lang-btn {
        display: block;
        width: 100%;
        border: 0;
        background: transparent;
        padding: 12px 18px;
        text-align: center;
        cursor: pointer;
        font-size: 13px;
    }

    body.home-page #header-actions.site-nav-actions .lang-btn { color: rgba(255, 255, 255, 0.82); }
    body.home-page #header-actions.site-nav-actions .lang-btn:hover { background: rgba(255, 184, 108, 0.1); color: #fff; }
    body.home-page #header-actions.site-nav-actions .lang-btn.active { background: rgba(255, 184, 108, 0.14); color: #ffcf96; }

    body.inner-page #header-actions.site-nav-actions .lang-btn,
    body.content-page #header-actions.site-nav-actions .lang-btn { color: rgba(24, 34, 49, 0.78); }
    body.inner-page #header-actions.site-nav-actions .lang-btn:hover,
    body.content-page #header-actions.site-nav-actions .lang-btn:hover { background: rgba(208, 123, 40, 0.08); color: #182231; }
    body.inner-page #header-actions.site-nav-actions .lang-btn.active,
    body.content-page #header-actions.site-nav-actions .lang-btn.active { background: rgba(208, 123, 40, 0.12); color: #a95f16; }
}

@media (max-width: 768px) {
    #horizontal-nav-bar.site-nav-shell {
        position: fixed;
        inset: 0;
        z-index: 2900;
        background: rgba(18, 18, 18, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        display: none;
        padding-top: 10vh;
    }

    #horizontal-nav-bar.site-nav-shell.visible {
        display: block;
    }

    #horizontal-nav-bar.site-nav-shell #nav-items-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    #header-actions.site-nav-actions {
        display: none;
    }

    #horizontal-nav-bar.site-nav-shell .nav-item,
    #header-actions.site-nav-actions .dropdown-header,
    #horizontal-nav-bar.site-nav-shell #header-bmac-link {
        color: #fff;
        text-decoration: none;
        font-size: 20px;
        font-weight: 300;
        letter-spacing: 2px;
        padding: 10px 0;
    }

    #header-actions.site-nav-actions .dropdown-content {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    #horizontal-nav-bar.site-nav-shell .dropdown-trigger.mobile-expanded .dropdown-content {
        max-height: 240px;
        opacity: 1;
        visibility: visible;
    }

    #header-actions.site-nav-actions .lang-btn {
        border: 0;
        background: transparent;
        color: rgba(255, 255, 255, 0.7);
        font-size: 17px;
        padding: 8px 0;
    }

    #header-actions.site-nav-actions .lang-btn.active {
        color: #fff;
    }
}

/* Desktop hard-lock to prevent legacy global nav rules from overriding layout */
@media (min-width: 769px) {
    body:not(.map-hud-page) #horizontal-nav-bar.site-nav-shell {
        position: fixed !important;
        top: var(--desktop-header-top) !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
        width: auto !important;
        display: block !important;
        pointer-events: none !important;
        z-index: 2200 !important;
        background: transparent !important;
        border: 0 !important;
        box-shadow: none !important;
    }

    body:not(.map-hud-page) #horizontal-nav-bar.site-nav-shell #nav-items-container {
        display: inline-flex !important;
        position: relative !important;
        pointer-events: auto !important;
        height: var(--desktop-header-pill-height) !important;
        min-height: var(--desktop-header-pill-height) !important;
        line-height: var(--desktop-header-pill-height) !important;
    }

    body:not(.map-hud-page) #header-actions.site-nav-actions {
        position: fixed !important;
        top: var(--desktop-header-top) !important;
        right: 32px !important;
        left: auto !important;
        transform: none !important;
        display: inline-flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: flex-end !important;
        gap: 10px !important;
        width: auto !important;
        height: var(--desktop-header-pill-height) !important;
        min-height: var(--desktop-header-pill-height) !important;
        pointer-events: auto !important;
        margin: 0 !important;
        z-index: 2201 !important;
    }

    body:not(.map-hud-page) #header-actions.site-nav-actions .header-action-chip {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        height: var(--desktop-header-pill-height) !important;
        min-height: var(--desktop-header-pill-height) !important;
        line-height: var(--desktop-header-pill-height) !important;
        width: auto !important;
    }
}