/**
 * BetterDesk Mobile Shell — bottom nav, drawer, viewport, utilities
 */

@supports (height: 100dvh) {
    :root {
        --app-height: 100dvh;
    }
}

/* ── Mobile shell layout ─────────────────────────────────────────────────── */

@media (max-width: 1024px) {
    body.app-page.is-mobile-shell {
        overflow: hidden;
    }

    body.app-page.is-mobile-shell .app-layout {
        height: var(--app-height);
        min-height: 0;
    }

    body.app-page.is-mobile-shell .main-wrapper {
        height: var(--app-height);
        min-height: 0;
    }

    body.app-page.is-mobile-shell .navbar {
        top: var(--safe-top);
        padding-left: calc(var(--space-sm) + var(--safe-left));
        padding-right: calc(var(--space-sm) + var(--safe-right));
    }

    body.app-page.is-mobile-shell .main-content {
        height: calc(var(--app-height) - var(--navbar-height) - var(--safe-top));
        min-height: 0;
        padding-bottom: calc(var(--space-lg) + var(--mobile-chrome-bottom));
        -webkit-overflow-scrolling: touch;
    }

    body.app-page.is-mobile-shell .navbar-breadcrumb {
        display: none;
    }

    body.app-page.is-mobile-shell .mobile-menu-btn {
        display: none !important;
    }

    /* Hide desktop sidebar rail on mobile — use bottom nav + more drawer */
    body.app-page.is-mobile-shell .sidebar {
        display: none;
    }

    body.app-page.is-mobile-shell .sidebar-overlay {
        display: none;
    }
}

@media (max-width: 767px) {
    body.app-page.is-mobile-shell .navbar {
        min-height: calc(var(--navbar-height) + var(--safe-top));
    }

    body.app-page.is-mobile-shell .page-title {
        font-size: var(--font-size-xl);
    }
}

/* ── Bottom navigation ───────────────────────────────────────────────────── */

.mobile-bottom-nav {
    display: none;
    position: fixed;
    left: var(--safe-left);
    right: var(--safe-right);
    bottom: 0;
    z-index: var(--z-sticky);
    height: calc(var(--mobile-nav-height) + var(--safe-bottom));
    padding-bottom: var(--safe-bottom);
    background: var(--surface-glass-bg-secondary, var(--bg-secondary));
    backdrop-filter: blur(var(--surface-glass-blur, 16px)) saturate(var(--surface-glass-saturate, 1.2));
    -webkit-backdrop-filter: blur(var(--surface-glass-blur, 16px)) saturate(var(--surface-glass-saturate, 1.2));
    border-top: 1px solid var(--surface-glass-border, var(--border-primary));
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.35);
}

@media (max-width: 1024px) {
    body.app-page.is-mobile-shell .mobile-bottom-nav {
        display: flex;
        align-items: stretch;
        justify-content: space-around;
    }
}

.mobile-bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    min-height: var(--mobile-nav-height);
    min-width: 44px;
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-secondary);
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: var(--font-size-xs);
    line-height: 1.2;
    transition: color var(--transition-fast), background var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-nav-item .material-icons {
    font-size: 22px;
}

.mobile-bottom-nav-item:hover,
.mobile-bottom-nav-item:focus-visible {
    color: var(--text-primary);
    background: var(--bg-hover);
    outline: none;
}

.mobile-bottom-nav-item.active {
    color: var(--accent-green);
}

.mobile-bottom-nav-item.active .material-icons {
    color: var(--accent-green);
}

/* ── More drawer (full-screen) ───────────────────────────────────────────── */

.mobile-more-drawer {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-overlay) + 10);
    visibility: hidden;
    pointer-events: none;
    transition: visibility var(--transition-fast);
}

.mobile-more-drawer.open {
    visibility: visible;
    pointer-events: auto;
}

.mobile-more-drawer-backdrop {
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.mobile-more-drawer.open .mobile-more-drawer-backdrop {
    opacity: 1;
}

.mobile-more-drawer-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(100%, 360px);
    max-width: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-primary);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
}

.mobile-more-drawer.open .mobile-more-drawer-panel {
    transform: translateX(0);
}

.mobile-more-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.mobile-more-drawer-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.mobile-more-drawer-close {
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
}

.mobile-more-drawer-body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: var(--space-sm) 0;
}

.mobile-drawer-section {
    padding: var(--space-sm) var(--space-md);
}

.mobile-drawer-section-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
    padding: var(--space-sm) var(--space-md);
    margin-top: var(--space-xs);
}

.mobile-drawer-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-height: 48px;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-drawer-link:hover,
.mobile-drawer-link:focus-visible {
    background: var(--bg-hover);
    outline: none;
}

.mobile-drawer-link.active {
    background: var(--accent-green-muted);
    color: var(--accent-green);
}

.mobile-drawer-link .material-icons {
    font-size: 20px;
    color: var(--text-secondary);
}

.mobile-drawer-link.active .material-icons {
    color: var(--accent-green);
}

/* ── Mobile utility classes ──────────────────────────────────────────────── */

.mobile-sticky-toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--bg-primary);
    padding: var(--space-sm) 0;
    margin-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-secondary);
}

.mobile-tabs-scroll {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-xs);
}

.mobile-tabs-scroll::-webkit-scrollbar {
    display: none;
}

.mobile-tabs-scroll .tab-btn,
.mobile-tabs-scroll .settings-tab {
    flex-shrink: 0;
    min-height: 44px;
}

.mobile-card-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-action-sheet {
    position: fixed;
    left: var(--safe-left);
    right: var(--safe-right);
    bottom: 0;
    z-index: calc(var(--z-modal) - 1);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-md);
    padding-bottom: calc(var(--space-md) + var(--safe-bottom));
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    max-height: min(70dvh, calc(var(--app-height) - var(--safe-top) - 2rem));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-action-sheet.open {
    transform: translateY(0);
}

.mobile-action-sheet-backdrop {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-modal) - 2);
    background: var(--bg-overlay);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-action-sheet-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.mobile-action-sheet-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    width: 100%;
    min-height: 48px;
    padding: var(--space-md);
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    cursor: pointer;
    margin-bottom: var(--space-sm);
    text-align: left;
}

.mobile-action-sheet-btn.primary {
    background: var(--accent-green);
    color: #fff;
    justify-content: center;
}

.mobile-fab {
    position: fixed;
    right: calc(var(--space-lg) + var(--safe-right));
    bottom: calc(var(--mobile-chrome-bottom) + var(--space-md));
    z-index: calc(var(--z-sticky) - 1);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--accent-green);
    color: #fff;
    border: none;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.mobile-fab:active {
    transform: scale(0.95);
}

@media (min-width: 1025px) {
    .mobile-fab,
    .mobile-sticky-toolbar.mobile-only {
        display: none;
    }
}

/* Touch-friendly form controls on mobile shell */
@media (max-width: 1024px) {
    body.app-page.is-mobile-shell .form-input,
    body.app-page.is-mobile-shell .form-select,
    body.app-page.is-mobile-shell .form-textarea,
    body.app-page.is-mobile-shell .btn {
        min-height: 44px;
    }

    body.app-page.is-mobile-shell .modal {
        max-height: calc(var(--app-height) - var(--safe-top) - var(--safe-bottom) - 2rem);
        margin-bottom: var(--safe-bottom);
    }

    body.app-page.is-mobile-shell .toast-container {
        bottom: calc(var(--mobile-chrome-bottom) + var(--space-md));
        left: calc(var(--space-md) + var(--safe-left));
        right: calc(var(--space-md) + var(--safe-right));
    }
}

/* ── Tier B/C global page patterns ───────────────────────────────────────── */

@media (max-width: 1024px) {
    body.app-page.is-mobile-shell .page-toolbar,
    body.app-page.is-mobile-shell .devices-toolbar,
    body.app-page.is-mobile-shell .toolbar-row {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    body.app-page.is-mobile-shell .table-responsive,
    body.app-page.is-mobile-shell .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    body.app-page.is-mobile-shell .settings-tabs,
    body.app-page.is-mobile-shell .server-mgmt-tabs {
        display: flex;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: var(--space-xs);
        padding-bottom: var(--space-xs);
    }

    body.app-page.is-mobile-shell .settings-tabs::-webkit-scrollbar,
    body.app-page.is-mobile-shell .server-mgmt-tabs::-webkit-scrollbar {
        display: none;
    }

    body.app-page.is-mobile-shell .detail-grid,
    body.app-page.is-mobile-shell .stats-grid,
    body.app-page.is-mobile-shell .keys-grid {
        grid-template-columns: 1fr !important;
    }

    body.app-page.is-mobile-shell .two-column-layout,
    body.app-page.is-mobile-shell .split-layout {
        flex-direction: column;
    }
}

/* ── Fold / tablet dual-pane ───────────────────────────────────────────────── */

@media (min-width: 720px) and (max-width: 1024px) {
    body.fold-unfolded.is-mobile-shell .devices-layout,
    body.fold-unfolded.is-mobile-shell .remote-dashboard-layout {
        display: grid;
        grid-template-columns: minmax(280px, 38%) 1fr;
        gap: var(--space-md);
        align-items: start;
    }

    body.fold-unfolded.is-mobile-shell .devices-folders-panel,
    body.fold-unfolded.is-mobile-shell .rd-dashboard-sidebar,
    body.fold-unfolded.is-mobile-shell .rd-desk-sidebar {
        max-height: calc(var(--app-height) - var(--navbar-height) - var(--mobile-chrome-bottom) - 4rem);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ── RdClient phone gate ───────────────────────────────────────────────────── */

.rd-phone-gate[hidden] {
    display: none !important;
}

body.rd-phone-gated .session-tab-bar,
body.rd-phone-gated .viewer-container,
body.rd-phone-gated .viewer-toolbar,
body.rd-phone-gated .rd-mobile-toolbar,
body.rd-phone-gated #rd-desk-app {
    display: none !important;
}

.rd-phone-gate {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--space-lg) + var(--safe-top)) calc(var(--space-lg) + var(--safe-right)) calc(var(--space-lg) + var(--safe-bottom)) calc(var(--space-lg) + var(--safe-left));
    background: var(--bg-primary, #0d1117);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.rd-phone-gate-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary, #161b22);
    border: 1px solid var(--border-primary, #30363d);
    border-radius: var(--radius-xl, 16px);
    padding: var(--space-xl);
    text-align: center;
}

.rd-phone-gate-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-full);
    background: var(--accent-green-muted, rgba(46, 164, 79, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
}

.rd-phone-gate-icon .material-icons {
    font-size: 36px;
    color: var(--accent-green, #2ea44f);
}

.rd-phone-gate-title {
    font-size: var(--font-size-xl, 1.25rem);
    font-weight: var(--font-weight-semibold, 600);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.rd-phone-gate-body {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.5;
}

.rd-phone-gate-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.rd-phone-gate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.rd-phone-gate-btn-primary {
    background: var(--accent-green, #2ea44f);
    color: #fff;
}

.rd-phone-gate-btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

/* ── RdClient mobile mode toolbar ────────────────────────────────────────── */

@media (max-width: 1024px) {
    body.rdclient-mobile-mode.viewer-body {
        height: var(--app-height);
        overflow: hidden;
    }

    body.rdclient-mobile-mode .session-tab-bar {
        top: var(--safe-top);
        padding-left: var(--safe-left);
        padding-right: var(--safe-right);
    }

    body.rdclient-mobile-mode .viewer-container {
        top: calc(36px + var(--safe-top));
        bottom: calc(var(--rdclient-mobile-toolbar-height) + var(--safe-bottom));
    }

    body.rdclient-mobile-mode .viewer-toolbar {
        display: none;
    }

    body.rdclient-mobile-mode .rd-mobile-toolbar {
        display: flex;
    }
}

.rd-mobile-toolbar {
    display: none;
    position: fixed;
    left: var(--safe-left);
    right: var(--safe-right);
    bottom: 0;
    z-index: 10000;
    height: calc(var(--rdclient-mobile-toolbar-height) + var(--safe-bottom));
    padding-bottom: var(--safe-bottom);
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(48, 54, 61, 0.8);
    align-items: stretch;
    justify-content: space-around;
}

.rd-mobile-toolbar-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    min-width: 44px;
    min-height: 44px;
    background: transparent;
    border: none;
    color: var(--text-secondary, #8b949e);
    font-size: 10px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.rd-mobile-toolbar-btn.active {
    color: var(--accent-green, #2ea44f);
}

.rd-mobile-toolbar-btn .material-icons {
    font-size: 22px;
}

.rd-keyboard-bridge {
    position: fixed;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.rd-special-keys-panel {
    position: fixed;
    left: var(--safe-left);
    right: var(--safe-right);
    bottom: calc(var(--rdclient-mobile-toolbar-height) + var(--safe-bottom));
    z-index: 10001;
    background: var(--bg-secondary, #161b22);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-md);
    display: none;
    flex-wrap: wrap;
    gap: var(--space-sm);
    max-height: 40dvh;
    overflow-y: auto;
}

.rd-special-keys-panel.open {
    display: flex;
}

.rd-special-key-btn {
    min-height: 44px;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

@media (max-width: 767px) {
    body.viewer-body .session-tab-bar,
    body.viewer-body .viewer-container,
    body.viewer-body .viewer-toolbar {
        display: none !important;
    }
}