/**
 * jOpenSim / ZoneVerse — smartphone & small tablet
 * Loaded after opensim-social-layout.css / opensim-bacheca-shared.css
 */

:root {
    --zn-bottom-nav-height: 56px;
    --zn-safe-bottom: env(safe-area-inset-bottom, 0px);
    --zn-safe-top: env(safe-area-inset-top, 0px);
}

@media (max-width: 900px) {
    html {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }

    body.zn-social-app,
    .zn-app,
    .zn-social-layout {
        overscroll-behavior: none;
    }

    .zn-topbar {
        display: flex;
        align-items: center;
        gap: 6px;
        padding-top: var(--zn-safe-top);
        height: calc(var(--zn-topbar-height) + var(--zn-safe-top));
        min-height: calc(var(--zn-topbar-height) + var(--zn-safe-top));
        padding-left: max(6px, env(safe-area-inset-left, 0px));
        padding-right: max(6px, env(safe-area-inset-right, 0px));
        box-sizing: border-box;
        overflow: visible;
    }

    .zn-topbar-left {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
        gap: 6px;
        min-width: 0;
    }

    .zn-topbar-center {
        flex: 1 1 auto;
        min-width: 0;
        max-width: none;
    }

    .zn-topbar-right {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
        gap: 4px;
        min-width: 0;
    }

    /* Hamburger — clear circular control */
    .zn-mobile-menu-btn {
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        width: 42px !important;
        height: 42px !important;
        min-width: 42px !important;
        min-height: 42px !important;
        padding: 0 !important;
        margin: 0;
        border-radius: 12px !important;
        background: var(--zn-glass-bg-heavy, rgba(255,255,255,0.12)) !important;
        border: 1px solid var(--zn-glass-border-bright, rgba(255,255,255,0.22)) !important;
        color: var(--zn-text-primary, #fff) !important;
        box-shadow: none !important;
        flex-shrink: 0;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .zn-mobile-menu-btn i {
        font-size: 18px !important;
        line-height: 1;
        display: block;
    }

    .zn-mobile-menu-btn:active {
        transform: scale(0.96);
        background: rgba(247,147,26,0.25) !important;
    }

    .zn-topbar-logo img {
        height: 28px;
        width: auto;
        max-width: 36px;
        object-fit: contain;
    }

    .zn-topbar-logo-text {
        display: none !important;
    }

    .zn-search-box {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .zn-search-input {
        font-size: 16px; /* iOS no-zoom */
        min-width: 0;
    }

    /* Keep essentials; hide secondary chrome that steals space from avatar */
    .zn-topbar-right > a.zn-topbar-btn:not(.zn-topbar-avatar):not(.zn-logout-btn):not(.zn-theme-toggle),
    .zn-topbar-right > .zn-topbar-dropdown:nth-of-type(n+3) {
        display: none;
    }

    .zn-topbar-right .zn-theme-toggle,
    .zn-topbar-right .zn-logout-btn,
    .zn-topbar-right #messagesDropdown,
    .zn-topbar-right #notificationsDropdown,
    .zn-topbar-right .zn-lang-switch {
        display: flex !important;
        flex-shrink: 0;
    }

    .zn-topbar-btn {
        width: 38px !important;
        height: 38px !important;
        min-width: 38px;
        flex-shrink: 0;
    }

    /* Avatar always visible */
    .zn-topbar-avatar {
        display: inline-flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 38px !important;
        height: 38px !important;
        min-width: 38px !important;
        padding: 0 !important;
        overflow: hidden !important;
        border-radius: 50% !important;
        border: 2px solid rgba(247,147,26,0.55) !important;
        background: var(--zn-bg-tertiary, #252838) !important;
        flex-shrink: 0 !important;
        order: 99;
    }

    .zn-topbar-avatar img {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
        display: block !important;
        border-radius: 50%;
    }

    .zn-lang-btn {
        max-width: 56px;
        min-width: 44px;
        padding: 0 8px;
        height: 38px;
    }

    .zn-lang-btn span {
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 36px;
    }

    .zn-lang-btn i {
        display: none;
    }

    /* Drawer */
    .zn-sidebar-left {
        display: flex !important;
        flex-direction: column;
        width: min(88vw, 320px) !important;
        max-width: 320px;
        transform: translateX(-105%);
        transition: transform 0.28s ease;
        z-index: calc(var(--zn-z-sidebar) + 5);
        padding-bottom: calc(var(--zn-bottom-nav-height) + var(--zn-safe-bottom) + 12px);
        box-shadow: 8px 0 32px rgba(0, 0, 0, 0.45);
        top: calc(var(--zn-topbar-height) + var(--zn-safe-top));
        height: auto;
        bottom: 0;
    }

    .zn-sidebar-left.open {
        transform: translateX(0) !important;
    }

    .zn-sidebar-left .zn-sidebar-text,
    .zn-sidebar-left .zn-nav-item-text {
        display: inline !important;
    }

    .zn-sidebar-right {
        display: none !important;
    }

    .zn-main-content {
        left: 0 !important;
        right: 0 !important;
        top: calc(var(--zn-topbar-height) + var(--zn-safe-top));
        bottom: calc(var(--zn-bottom-nav-height) + var(--zn-safe-bottom));
        -webkit-overflow-scrolling: touch;
    }

    .zn-content-inner {
        padding: 8px 8px 20px;
        max-width: 100%;
        overflow-x: clip;
    }

    .zn-mobile-overlay.show {
        display: block !important;
        top: calc(var(--zn-topbar-height) + var(--zn-safe-top));
        bottom: calc(var(--zn-bottom-nav-height) + var(--zn-safe-bottom));
    }

    .zn-bottom-nav {
        display: flex !important;
        align-items: stretch;
        justify-content: space-around;
        height: calc(var(--zn-bottom-nav-height) + var(--zn-safe-bottom));
        padding-bottom: var(--zn-safe-bottom);
        z-index: calc(var(--zn-z-topbar) + 2);
    }

    .zn-bottom-nav-item {
        min-height: 48px;
        font-size: 10px;
        gap: 2px;
        padding: 6px 2px 4px;
    }

    .zn-bottom-nav-item i,
    .zn-bottom-nav-item svg {
        font-size: 20px;
        width: 22px;
        height: 22px;
    }

    .zn-bottom-nav-label {
        display: block;
        line-height: 1.1;
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-weight: 600;
    }

    /* Profile tabs — icons only */
    .fb-nav-tabs {
        flex-wrap: nowrap !important;
        justify-content: flex-start !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 0;
        padding: 0 4px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .fb-nav-tabs::-webkit-scrollbar {
        display: none;
    }

    .fb-nav-tab {
        flex: 0 0 auto !important;
        width: 48px;
        min-width: 48px;
        height: 48px;
        padding: 0 !important;
        margin: 0;
        justify-content: center;
        align-items: center;
        gap: 0 !important;
        font-size: 0 !important; /* hide text labels */
        line-height: 0;
        border-bottom-width: 3px;
    }

    .fb-nav-tab svg,
    .fb-nav-tab i {
        width: 22px !important;
        height: 22px !important;
        font-size: 20px !important;
        opacity: 0.85 !important;
        flex-shrink: 0;
    }

    .fb-nav-tab.active svg,
    .fb-nav-tab.active i {
        opacity: 1 !important;
        color: #ff8a3d;
    }

    .fb-nav-tab .tab-badge {
        position: absolute;
        top: 6px;
        right: 4px;
        font-size: 9px !important;
        line-height: 1.2;
        min-width: 14px;
        padding: 1px 4px;
    }

    .fb-nav-tab-label {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }

    .fb-profile-actions .fb-btn span,
    .fb-profile-actions button span {
        /* keep action labels on profile */
    }

    .fb-avatar,
    .fb-avatar-placeholder,
    .fb-create-post-avatar {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        object-fit: cover;
    }

    /* Profile header mobile — reinforce avatar visibility from shared sheet */
    .fb-cover-container {
        overflow: visible !important;
    }

    .fb-avatar-container {
        z-index: 8 !important;
    }

    .zn-feed-layout,
    .zn-dashboard,
    .dash-grid,
    .zn-dash-grid,
    .feed-container,
    .zn-content-inner > .row {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .zn-content-inner img,
    .zn-content-inner video,
    .zn-content-inner iframe {
        max-width: 100%;
        height: auto;
    }

    .zn-content-inner table {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (max-width: 600px) {
    .zn-topbar-center {
        display: none; /* more room for avatar + actions */
    }

    .zn-topbar-right {
        margin-left: auto;
        gap: 6px;
    }

    .zn-lang-switch {
        display: none !important; /* language via menu drawer on very small */
    }

    .zn-logout-btn {
        display: none !important;
    }
}

@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
    :root {
        --zn-bottom-nav-height: 48px;
    }

    .zn-bottom-nav-label {
        display: none;
    }
}