/**
 * Unified Shell Layout Styles
 * Discord-style navigation with left bubbles, context panel, and content area
 */

/* ============== Shell Container ============== */
.unified-shell {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: var(--bg-primary);
    overflow: hidden;
}

/* ============== Navigation Bar (72px) ============== */
.shell-nav-bar {
    width: var(--tribes-width);
    flex-shrink: 0;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}

.shell-nav-bar::-webkit-scrollbar {
    width: 4px;
}

.shell-nav-bar::-webkit-scrollbar-thumb {
    background: var(--ctp-surface1);
    border-radius: 2px;
}

.nav-bar-inner {
    display: flex;
    flex-direction: column;
    padding: 12px 0;
    gap: 4px;
}

.nav-bar-top,
.nav-bar-middle,
.nav-bar-tribes {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
}

.nav-bar-separator {
    width: 32px;
    height: 2px;
    background: var(--border-color);
    margin: 8px auto;
    border-radius: 1px;
}

/* ============== Navigation Bubbles ============== */
.nav-bubble {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-radius var(--transition-fast), background var(--transition-fast);
    position: relative;
}

.nav-bubble:hover {
    border-radius: 16px;
    background: var(--color-primary);
}

.nav-bubble:hover .bubble-icon {
    color: var(--ctp-crust);
}

.nav-bubble.active {
    border-radius: 16px;
    background: var(--color-primary);
}

.nav-bubble.active .bubble-icon {
    color: var(--ctp-crust);
}

/* Active indicator pill on left */
.nav-bubble::before {
    content: '';
    position: absolute;
    left: -12px;
    width: 4px;
    height: 0;
    background: var(--text-primary);
    border-radius: 0 4px 4px 0;
    transition: height var(--transition-fast);
}

.nav-bubble:hover::before {
    height: 20px;
}

.nav-bubble.active::before {
    height: 40px;
}

.bubble-icon {
    font-size: 1.25rem;
    line-height: 1;
    transition: color var(--transition-fast);
}

.bubble-badge {
    position: absolute;
    bottom: -2px;
    right: -2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--color-error);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-tertiary);
}

/* Tribe bubbles can have custom icons/images */
.nav-bubble.tribe-bubble {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-bubble.tribe-bubble img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* ============== Context Panel (240px) ============== */
.shell-context-panel {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.shell-context-panel.hidden {
    display: none;
}

/* Context Header */
.context-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.header-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.header-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

/* Context Navigation Links */
.context-nav {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-sm);
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    touch-action: pan-y;
}

.context-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    transition: background var(--transition-fast), color var(--transition-fast);
    width: 100%;
    text-align: left;
}

.context-link:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.context-link.active {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.link-icon {
    font-size: 1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.link-label {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.link-badge {
    background: var(--color-error);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.context-separator {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm) var(--spacing-md);
}

/* ============== Context Tabs ============== */
.context-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.context-tabs .tab {
    flex: 1;
    padding: 12px 8px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
}

.context-tabs .tab:hover {
    color: var(--text-secondary);
}

.context-tabs .tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.context-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    touch-action: pan-y;
}

/* ============== DM Items ============== */
.dm-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
}

.dm-item:hover {
    background: var(--bg-surface);
}

.dm-item.active {
    background: var(--bg-surface);
}

.dm-item.has-unread {
    background: rgba(203, 166, 247, 0.1);
    box-shadow: 0 0 8px rgba(203, 166, 247, 0.3), inset 0 0 0 1px rgba(203, 166, 247, 0.2);
}

.dm-item.has-unread .dm-name {
    color: var(--color-primary);
    font-weight: 600;
}

.dm-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--ctp-crust);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
    overflow: hidden;
}

.dm-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dm-info {
    flex: 1;
    min-width: 0;
}

.dm-name {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dm-preview {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dm-username {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dm-badge {
    background: var(--color-error);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* ============== Context Panel Wrappers ============== */
.context-tua-home,
.context-dm,
.context-user,
.context-admin,
.context-tickets {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* ============== Channel List in Context ============== */
.channel-list {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    touch-action: pan-y;
}

.channel-category {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 8px 4px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    cursor: pointer;
    user-select: none;
}

.channel-category:hover {
    color: var(--text-secondary);
}

.category-count {
    margin-left: auto;
    font-size: 0.65rem;
    color: var(--text-faint);
}

/* Tab badges */
.tab-badge {
    background: var(--color-error);
    color: white;
    font-size: 0.6rem;
    padding: 1px 4px;
    border-radius: 6px;
    margin-left: 4px;
}

/* Admin quick stats */
.admin-quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
}

.quick-stat {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-surface);
    border-radius: var(--border-radius);
}

.stat-value {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.stat-loading, .stat-error {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-md);
}

.category-arrow {
    font-size: 0.6rem;
    transition: transform var(--transition-fast);
}

.channel-category.collapsed .category-arrow {
    transform: rotate(-90deg);
}

.channel-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px 6px 16px;
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.channel-item:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.channel-item.active {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.channel-hash {
    color: var(--text-muted);
    font-weight: 500;
    font-size: var(--font-size-lg);
}

.channel-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--font-size-sm);
}

.channel-badge {
    background: var(--color-error);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 8px;
    min-width: 16px;
    text-align: center;
}

/* Unread badge for individual rooms */
.unread-badge {
    background: var(--color-error);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    margin-left: auto;
    flex-shrink: 0;
}

.channel-item.has-unread {
    color: var(--text-primary);
}

.channel-item.has-unread .channel-name {
    font-weight: 600;
}

/* Voice channel indicator */
.channel-item.voice .channel-hash {
    color: var(--color-success);
}

.channel-item.voice .channel-hash::before {
    content: '';
}

/* ============== Main Content Area ============== */
.shell-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

/* ============== User Context Specific ============== */
.context-user .user-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.context-user .user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.context-user .user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.context-user .avatar-initial {
    color: var(--ctp-crust);
    font-weight: 600;
    font-size: 1.25rem;
}

.context-user .user-info {
    flex: 1;
    min-width: 0;
}

.context-user .user-name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.context-user .user-tier {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.logout-btn {
    color: var(--color-error) !important;
}

.logout-btn:hover {
    background: rgba(243, 139, 168, 0.1) !important;
}

/* ============== Create/Action Buttons ============== */
.context-action-btn {
    margin: var(--spacing-sm) var(--spacing-md);
    padding: 10px var(--spacing-md);
    background: var(--color-primary);
    color: var(--ctp-crust);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background var(--transition-fast);
    width: calc(100% - var(--spacing-lg));
}

.context-action-btn:hover {
    background: var(--color-primary-hover);
}

/* ============== Loading & Empty States ============== */
.context-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--text-muted);
    flex-direction: column;
    gap: var(--spacing-sm);
}

.context-loading .spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

/* ============== Mobile Layout ============== */
@media (max-width: 768px) {
    /* Mobile: nav bar and context panel hidden by default, slide in as drawer */
    .unified-shell {
        position: relative;
    }

    /* Nav bar - hidden off left edge by default */
    .unified-shell .shell-nav-bar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 64px;
        z-index: var(--z-drawer);
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }

    /* Context panel - also hidden, positioned next to nav bar */
    .unified-shell .shell-context-panel {
        position: fixed;
        top: 0;
        left: 64px;
        bottom: 0;
        width: calc(100vw - 64px);
        max-width: 280px;
        z-index: var(--z-drawer);
        transform: translateX(calc(-100% - 64px));
        transition: transform 0.25s ease;
        box-shadow: var(--shadow-lg);
    }

    .unified-shell .shell-context-panel.hidden {
        display: flex !important; /* Override global .hidden so we can use transform to animate */
    }

    /* Content takes full width on mobile */
    .unified-shell .shell-content {
        width: 100%;
        flex: 1;
    }

    /* Drawer open state - slide both in */
    .unified-shell.drawer-open .shell-nav-bar {
        transform: translateX(0);
    }

    .unified-shell.drawer-open .shell-context-panel,
    .unified-shell.drawer-open .shell-context-panel.hidden {
        transform: translateX(0);
        display: flex !important;
    }

    /* Nav bubbles smaller on mobile */
    .unified-shell .nav-bubble {
        width: 42px;
        height: 42px;
    }

    .unified-shell .nav-bar-inner {
        padding: 8px 0;
    }

    .unified-shell .nav-bar-top,
    .unified-shell .nav-bar-middle,
    .unified-shell .nav-bar-tribes {
        padding: 0 8px;
    }
}

/* Very small screens - narrower nav bar */
@media (max-width: 480px) {
    .unified-shell .shell-nav-bar {
        width: 56px;
    }

    .unified-shell .shell-context-panel {
        left: 56px;
        width: calc(100vw - 56px);
        max-width: none;
    }

    .unified-shell.drawer-open .shell-context-panel {
        transform: translateX(0);
    }

    .unified-shell .nav-bubble {
        width: 38px;
        height: 38px;
    }
}

.shell-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(17, 17, 27, 0.7);
    z-index: calc(var(--z-drawer) - 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.shell-drawer-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* ============== Friend List Items ============== */
.friend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.friend-item:hover {
    background: var(--bg-surface);
}

.friend-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.friend-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.friend-avatar .initial {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.friend-status {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
}

.friend-status.online {
    background: var(--color-success);
}

.friend-status.offline {
    background: var(--text-muted);
}

.friend-status.away {
    background: var(--color-warning);
}

.friend-info {
    flex: 1;
    min-width: 0;
}

.friend-name {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-username {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.friend-actions {
    display: flex;
    gap: 4px;
}

.friend-action-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.friend-action-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.friend-action-btn.accept:hover {
    background: var(--color-success);
    color: white;
}

.friend-action-btn.decline:hover {
    background: var(--color-error);
    color: white;
}

/* ============== Section Headers ============== */
.context-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.context-section-header .count {
    color: var(--text-faint);
}

/* Pending requests banner in Friends tab */
.pending-requests-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    margin: 4px 8px 8px 8px;
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.pending-requests-banner:hover {
    background: var(--color-primary);
}

.pending-requests-banner:hover .pending-text,
.pending-requests-banner:hover .pending-arrow {
    color: var(--ctp-crust);
}

.pending-requests-banner .pending-icon {
    font-size: 1rem;
}

.pending-requests-banner .pending-text {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 500;
}

.pending-requests-banner .pending-arrow {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============== Search in Context ============== */
.context-search {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.context-search input {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-surface);
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
}

.context-search input::placeholder {
    color: var(--text-muted);
}

.context-search input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-primary);
}

/* ============== Add Friend Panel ============== */
.add-friend-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.add-friend-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.add-friend-header .back-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
}

.add-friend-header .back-btn:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.add-friend-search {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.add-friend-search input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-surface);
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
}

.add-friend-search input::placeholder {
    color: var(--text-muted);
}

.add-friend-search input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-primary);
}

.add-friend-search .search-btn {
    background: var(--color-primary);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
}

.add-friend-search .search-btn:hover {
    filter: brightness(1.1);
}

.add-friend-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
}

.add-friend-trigger {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
}

.add-friend-trigger:hover {
    background: var(--bg-surface);
    color: var(--color-primary);
}

.friend-action-btn.add {
    background: var(--color-primary);
    color: white;
}

.friend-action-btn.add:hover {
    filter: brightness(1.1);
}

.friend-action-btn.sent {
    background: var(--color-success);
    color: white;
    cursor: default;
}