/* ForumX responsive header/navigation v1
   Keeps the desktop header intact and gives tablet/phone a clean, premium layout. */

:root {
    --fx-header-bottom: 76px;
    --fx-header-safe-x: max(12px, env(safe-area-inset-left));
}

.site-header .header-search-toggle {
    display: none;
}

.fx-nav-backdrop {
    position: fixed;
    z-index: 230;
    top: var(--fx-header-bottom);
    right: 0;
    bottom: 0;
    left: 0;
    border: 0;
    padding: 0;
    background: rgba(3, 10, 20, .58);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, visibility .18s ease;
}

body.fx-nav-open .fx-nav-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

@media (max-width: 980px) {
    html,
    body {
        max-width: 100%;
        overflow-x: clip;
    }

    body.fx-nav-open {
        overflow: hidden;
        overscroll-behavior: none;
    }

    .site-header {
        position: sticky;
        z-index: 240 !important;
        overflow: visible !important;
        isolation: isolate;
    }

    .site-header .utility-bar {
        display: none !important;
    }

    .site-header .header-main {
        position: relative;
        z-index: 112;
        border-bottom: 1px solid rgba(255, 255, 255, .07);
    }

    .site-header .header-inner {
        min-height: 70px !important;
        display: grid !important;
        grid-template-columns: auto minmax(220px, 1fr) auto !important;
        align-items: center !important;
        gap: 14px !important;
        padding-block: 9px !important;
    }

    .site-header .brand {
        min-width: 0;
        margin: 0 !important;
    }

    .site-header .brand-copy strong {
        max-width: 150px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .site-header .brand-copy small {
        display: none !important;
    }

    .site-header .header-search {
        width: 100% !important;
        min-width: 0 !important;
        display: grid !important;
        height: 44px !important;
        border-radius: 14px !important;
        background: rgba(255,255,255,.065) !important;
    }

    .site-header .header-search button {
        min-width: 56px;
        height: 34px;
        border-radius: 10px;
        color: color-mix(in srgb, var(--accent) 78%, #fff);
        background: color-mix(in srgb, var(--accent) 14%, rgba(255,255,255,.08));
    }

    .site-header .header-actions {
        min-width: 0;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-end !important;
        gap: 7px !important;
        margin: 0 !important;
    }

    .site-header .action-icon,
    .site-header .profile-chip,
    .site-header .mobile-menu-button {
        width: 43px !important;
        min-width: 43px !important;
        height: 43px !important;
        min-height: 43px !important;
        border-radius: 13px !important;
    }

    .site-header .profile-chip {
        display: grid !important;
        grid-template-columns: 33px !important;
        place-items: center;
        padding: 4px !important;
        margin: 0 !important;
    }

    .site-header .profile-chip > span,
    .site-header .profile-chip > .forumx-icon {
        display: none !important;
    }

    .site-header .profile-chip .avatar {
        width: 33px !important;
        height: 33px !important;
    }

    .site-header .mobile-menu-button {
        display: inline-grid !important;
    }

    .site-header .primary-nav-bar,
    .site-header .primary-nav-inner {
        min-height: 0 !important;
        height: 0 !important;
        border: 0 !important;
        background: transparent !important;
    }

    .site-header .main-nav {
        position: fixed !important;
        z-index: 120 !important;
        top: calc(var(--fx-header-bottom) + 10px) !important;
        right: max(12px, env(safe-area-inset-right)) !important;
        left: auto !important;
        width: min(820px, calc(100vw - 24px)) !important;
        max-width: calc(100vw - 24px) !important;
        max-height: calc(100dvh - var(--fx-header-bottom) - 24px) !important;
        overflow-x: hidden !important;
        overflow-y: auto !important;
        overscroll-behavior: contain;
        scrollbar-width: thin;
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 10px !important;
        border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line-strong)) !important;
        border-radius: 20px !important;
        padding: 15px !important;
        background:
            radial-gradient(circle at 90% 0, color-mix(in srgb, var(--accent) 13%, transparent), transparent 280px),
            color-mix(in srgb, var(--card) 96%, #061426) !important;
        box-shadow: 0 28px 70px rgba(0, 0, 0, .42), inset 0 1px 0 rgba(255,255,255,.04) !important;
        color: var(--text) !important;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-10px) scale(.985);
        transform-origin: top right;
        transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
    }

    .site-header .main-nav::before {
        content: "";
        position: fixed;
        top: calc(var(--fx-header-bottom) + 2px);
        right: 28px;
        width: 16px;
        height: 16px;
        border-top: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line-strong));
        border-left: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line-strong));
        background: color-mix(in srgb, var(--card) 96%, #061426);
        transform: rotate(45deg);
    }

    .site-header .main-nav.open {
        display: grid !important;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    .site-header .main-nav > a,
    .site-header .main-nav > form,
    .site-header .main-nav > button {
        min-width: 0 !important;
        min-height: 58px !important;
        margin: 0 !important;
    }

    .site-header .main-nav > a,
    .site-header .main-nav .nav-button,
    .site-header .main-nav > button.nav-button {
        position: relative;
        width: 100% !important;
        min-height: 58px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 12px !important;
        border: 1px solid color-mix(in srgb, var(--line) 86%, transparent) !important;
        border-radius: 13px !important;
        padding: 12px 42px 12px 15px !important;
        background: color-mix(in srgb, var(--card-2) 92%, transparent) !important;
        color: var(--text) !important;
        font-size: .92rem !important;
        font-weight: 750 !important;
        line-height: 1.15 !important;
        text-align: left !important;
        box-shadow: inset 0 1px 0 rgba(255,255,255,.025);
        transition: border-color .15s ease, background .15s ease, transform .15s ease;
    }

    .site-header .main-nav > a::after,
    .site-header .main-nav > button.nav-button::after {
        content: "›" !important;
        position: absolute !important;
        top: 50% !important;
        right: 15px !important;
        bottom: auto !important;
        left: auto !important;
        width: auto !important;
        height: auto !important;
        display: block !important;
        border: 0 !important;
        background: transparent !important;
        color: var(--muted) !important;
        font-size: 1.35rem !important;
        font-weight: 400 !important;
        line-height: 1 !important;
        opacity: .8 !important;
        transform: translateY(-52%) !important;
    }

    .site-header .main-nav > a:hover,
    .site-header .main-nav > a.active,
    .site-header .main-nav .nav-button:hover {
        border-color: color-mix(in srgb, var(--accent) 52%, var(--line)) !important;
        background: color-mix(in srgb, var(--accent) 12%, var(--card-2)) !important;
        color: color-mix(in srgb, var(--accent) 76%, #fff) !important;
        transform: translateY(-1px);
    }

    .site-header .main-nav > a.active {
        box-shadow: inset 3px 0 0 var(--accent), inset 0 1px 0 rgba(255,255,255,.035);
    }

    .site-header .main-nav .forumx-icon {
        width: 21px !important;
        height: 21px !important;
        flex: 0 0 21px;
        color: color-mix(in srgb, var(--accent) 58%, var(--muted));
        opacity: 1 !important;
    }

    .site-header .main-nav .nav-badge {
        position: static !important;
        min-width: 22px;
        height: 22px;
        margin-left: auto !important;
        margin-right: -24px !important;
        border: 0 !important;
    }

    .site-header .nav-mobile-only,
    .site-header .main-nav form.nav-mobile-only {
        display: flex !important;
    }

    .site-header .main-nav form.nav-mobile-only {
        width: 100%;
    }

    .site-header .staff-nav {
        display: none !important;
    }
}

@media (min-width: 761px) and (max-width: 980px) {
    .site-header .header-search-toggle {
        display: none !important;
    }

    .site-header .theme-toggle,
    .site-header [data-fx-message-link],
    .site-header [data-fx-notification-link],
    .site-header .profile-chip,
    .site-header .mobile-menu-button {
        display: inline-grid !important;
    }
}

@media (max-width: 760px) {
    :root {
        --fx-header-bottom: 130px;
    }

    .site-header .header-main {
        padding-bottom: 0;
    }

    .site-header .header-inner {
        width: min(100% - 20px, 1180px) !important;
        min-height: 0 !important;
        grid-template-columns: minmax(0, 1fr) auto !important;
        grid-template-areas:
            "brand actions"
            "search search" !important;
        column-gap: 10px !important;
        row-gap: 10px !important;
        padding-block: 10px 12px !important;
    }

    .site-header .brand {
        grid-area: brand;
        gap: 9px !important;
    }

    .site-header .brand-mark {
        width: 42px !important;
        height: 42px !important;
        border-radius: 12px !important;
    }

    .site-header .brand-copy {
        display: grid !important;
    }

    .site-header .brand-copy strong {
        max-width: 130px;
        font-size: 1.12rem !important;
    }

    .site-header .header-search {
        grid-area: search;
        display: grid !important;
        width: 100% !important;
        height: 46px !important;
    }

    .site-header .header-actions {
        grid-area: actions;
        gap: 6px !important;
    }

    .site-header .header-search-toggle,
    .site-header [data-fx-notification-link],
    .site-header .profile-chip,
    .site-header .mobile-menu-button {
        display: inline-grid !important;
    }

    .site-header .theme-toggle,
    .site-header [data-fx-message-link] {
        display: none !important;
    }

    .site-header .header-search-toggle {
        width: 42px !important;
        min-width: 42px !important;
        height: 42px !important;
        min-height: 42px !important;
    }

    .site-header .action-icon,
    .site-header .profile-chip,
    .site-header .mobile-menu-button {
        width: 42px !important;
        min-width: 42px !important;
        height: 42px !important;
        min-height: 42px !important;
        border-radius: 12px !important;
    }

    .site-header .main-nav {
        top: calc(var(--fx-header-bottom) + 8px) !important;
        right: 10px !important;
        left: 10px !important;
        width: auto !important;
        max-width: none !important;
        max-height: calc(100dvh - var(--fx-header-bottom) - 20px) !important;
        grid-template-columns: 1fr !important;
        gap: 8px !important;
        border-radius: 17px !important;
        padding: 12px !important;
        transform-origin: top center;
    }

    .site-header .main-nav::before {
        right: 24px;
    }

    .site-header .main-nav > a,
    .site-header .main-nav > form,
    .site-header .main-nav > button {
        min-height: 53px !important;
    }

    .site-header .main-nav > a,
    .site-header .main-nav .nav-button,
    .site-header .main-nav > button.nav-button {
        min-height: 53px !important;
        padding-block: 10px !important;
        font-size: .88rem !important;
    }

    .site-header .header-login-button {
        width: 42px !important;
        min-width: 42px !important;
        height: 42px !important;
        min-height: 42px !important;
        padding: 0 !important;
        border-radius: 12px !important;
    }

    .site-header .header-login-button span,
    .site-header .header-register {
        display: none !important;
    }
}

@media (max-width: 420px) {
    .site-header .header-inner {
        width: calc(100% - 16px) !important;
        column-gap: 7px !important;
    }

    .site-header .brand-copy strong {
        max-width: 100px;
        font-size: 1.03rem !important;
    }

    .site-header .brand-mark {
        width: 39px !important;
        height: 39px !important;
    }

    .site-header .header-actions {
        gap: 4px !important;
    }

    .site-header .header-search-toggle,
    .site-header .action-icon,
    .site-header .profile-chip,
    .site-header .mobile-menu-button,
    .site-header .header-login-button {
        width: 39px !important;
        min-width: 39px !important;
        height: 39px !important;
        min-height: 39px !important;
    }

    .site-header .profile-chip .avatar {
        width: 31px !important;
        height: 31px !important;
    }

    .site-header .header-search button {
        min-width: 52px;
        padding-inline: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-header .main-nav,
    .fx-nav-backdrop {
        transition: none !important;
    }
}