/* ============================================================
   layout.css — Sidebar + main content grid
   ============================================================ */

#app {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-normal), min-width var(--transition-normal);
    overflow: hidden;
    z-index: var(--z-sticky);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
    min-width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: var(--space-5) var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.sidebar-logo-text {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-logo-sub {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: var(--font-normal);
    display: block;
    margin-top: -2px;
}

.sidebar.collapsed .sidebar-logo-text,
.sidebar.collapsed .sidebar-logo-sub {
    display: none;
}

/* ── Workspace Selector ─────────────────────────────────── */
.workspace-selector {
    position: relative;
}

.workspace-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    text-align: left;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: opacity var(--transition-fast);
}

.workspace-trigger:hover {
    opacity: 0.85;
}

.workspace-trigger-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: var(--font-bold);
    flex-shrink: 0;
    text-transform: uppercase;
    background: var(--accent-primary);
    color: white;
}

.workspace-trigger-icon.viewer {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    border: 1px dashed var(--border-color);
}

.workspace-trigger-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.workspace-trigger-name {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.workspace-trigger-meta {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: var(--font-normal);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: -1px;
}

.workspace-trigger-chevron {
    flex-shrink: 0;
    font-size: 10px;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.workspace-selector.open .workspace-trigger-chevron {
    transform: rotate(180deg);
}

.sidebar.collapsed .workspace-trigger-text,
.sidebar.collapsed .workspace-trigger-chevron {
    display: none;
}

/* Dropdown */
.workspace-dropdown {
    display: none;
    flex-direction: column;
    gap: 1px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: var(--space-2);
    border: 1px solid var(--border-color);
    max-height: 240px;
    overflow-y: auto;
}

.workspace-selector.open .workspace-dropdown {
    display: flex;
}

.workspace-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-secondary);
    cursor: pointer;
    border: none;
    width: 100%;
    text-align: left;
    color: var(--text-primary);
    font-family: inherit;
    transition: background var(--transition-fast);
}

.workspace-dropdown-item:hover {
    background: var(--bg-hover);
}

.workspace-dropdown-item.active {
    background: var(--accent-primary-bg);
}

.workspace-dropdown-item-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: var(--font-bold);
    flex-shrink: 0;
    text-transform: uppercase;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.workspace-dropdown-item.active .workspace-dropdown-item-icon {
    background: var(--accent-primary);
    color: white;
}

.workspace-dropdown-item-info {
    flex: 1;
    min-width: 0;
}

.workspace-dropdown-item-name {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.workspace-dropdown-item-meta {
    font-size: 10px;
    color: var(--text-tertiary);
}

.workspace-role-badge {
    font-size: 10px;
    font-weight: var(--font-semibold);
    padding: 1px 6px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
    text-transform: capitalize;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
}

.workspace-role-badge.owner {
    color: var(--accent-warning);
    background: var(--accent-warning-bg);
}

.workspace-role-badge.admin {
    color: var(--accent-info);
    background: var(--accent-info-bg);
}

.workspace-role-badge.viewer {
    border: 1px dashed var(--border-color);
}

.sidebar.collapsed .workspace-dropdown {
    display: none !important;
}

/* Create workspace button */
.workspace-dropdown-create {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-primary);
    cursor: pointer;
    border: none;
    border-top: 1px solid var(--border-color);
    width: 100%;
    text-align: left;
    color: var(--text-tertiary);
    font-family: inherit;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    transition: all var(--transition-fast);
}

.workspace-dropdown-create:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

.workspace-dropdown-create-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: var(--font-bold);
    flex-shrink: 0;
    border: 1px dashed var(--border-color);
    color: var(--text-tertiary);
}

.workspace-dropdown-create:hover .workspace-dropdown-create-icon {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ── Navigation ──────────────────────────────────────────── */
.sidebar-nav {
    flex: 1;
    padding: var(--space-3) var(--space-3);
    overflow-y: auto;
}

.nav-section-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-4) var(--space-3) var(--space-2);
    font-weight: var(--font-semibold);
}

.sidebar.collapsed .nav-section-label {
    display: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    white-space: nowrap;
    cursor: pointer;
}

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

.nav-link.active {
    background: var(--accent-primary-bg);
    color: var(--accent-primary-hover);
}

.nav-link-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 15px;
}

.nav-link-label {
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar.collapsed .nav-link-label {
    display: none;
}

.nav-badge {
    margin-left: auto;
    background: var(--accent-danger);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    padding: 1px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.sidebar.collapsed .nav-badge {
    display: none;
}

/* ── Team Headers (collapsible) ─────────────────────────── */
.nav-team-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    margin-top: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: all var(--transition-fast);
    user-select: none;
}

.nav-team-header:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-team-chevron {
    font-size: 10px;
    flex-shrink: 0;
    width: 12px;
    text-align: center;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.nav-team-header:hover .nav-team-chevron {
    color: var(--text-secondary);
}

.nav-team-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-team-badge {
    font-size: 9px;
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-team-badge.readonly {
    font-size: 10px;
}

.sidebar.collapsed .nav-team-header {
    justify-content: center;
    padding: var(--space-2) var(--space-1);
}

.sidebar.collapsed .nav-team-name,
.sidebar.collapsed .nav-team-badge {
    display: none;
}

/* ── Sub-labels (Systems / Projects under team) ──────────── */
.nav-sub-label {
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: var(--space-1) var(--space-3) var(--space-1) 28px;
    font-weight: var(--font-medium);
    opacity: 0.7;
}

.sidebar.collapsed .nav-sub-label {
    display: none;
}

/* ── Sub-level nav links ─────────────────────────────────── */
.nav-link-sub {
    padding-left: 28px;
    font-size: var(--text-xs);
}

.sidebar.collapsed .nav-link-sub {
    padding-left: var(--space-3);
}

/* ── Project color dot ───────────────────────────────────── */
.project-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ── Drag & drop indicators ──────────────────────────────── */
.nav-link-draggable {
    transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
    position: relative;
}

.nav-link-draggable.dragging {
    opacity: 0.25;
    transform: scale(0.96);
}

.nav-link-draggable.drop-above::before,
.nav-link-draggable.drop-below::after {
    content: '';
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 1px;
    box-shadow: 0 0 6px rgba(99, 102, 241, 0.5);
    pointer-events: none;
    animation: dropIndicatorPulse 1s ease-in-out infinite;
}

.nav-link-draggable.drop-above::before {
    top: -1px;
}

.nav-link-draggable.drop-below::after {
    bottom: -1px;
}

.nav-link-draggable.drop-above,
.nav-link-draggable.drop-below {
    background: rgba(99, 102, 241, 0.06);
}

@keyframes dropIndicatorPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ── Empty hint ──────────────────────────────────────────── */
.nav-empty-hint {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    padding: var(--space-2) var(--space-3) var(--space-2) 28px;
    font-style: italic;
    opacity: 0.6;
}

.sidebar.collapsed .nav-empty-hint {
    display: none;
}

/* ── Sidebar User ───────────────────────────────────────── */
.sidebar-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.sidebar-user-email {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.sidebar-logout-btn {
    flex-shrink: 0;
    width: auto !important;
    padding: var(--space-1) var(--space-2) !important;
    font-size: var(--text-xs) !important;
    color: var(--text-tertiary) !important;
}

.sidebar-logout-btn:hover {
    color: var(--accent-danger) !important;
}

.sidebar.collapsed .sidebar-user-email {
    display: none;
}

/* ── Sidebar Footer ──────────────────────────────────────── */
.sidebar-footer {
    padding: var(--space-3);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-footer-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sidebar-btn {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    text-align: left;
    white-space: nowrap;
}

.sidebar-btn:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.sidebar.collapsed .sidebar-btn span:not(.nav-link-icon) {
    display: none;
}

.sidebar-collapse-btn {
    margin-top: var(--space-2);
}

/* ── Main Content ────────────────────────────────────────── */
.main-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.view-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-8);
}

/* ── View header pattern ─────────────────────────────────── */
.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.view-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.view-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.view-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
}

.view-subtitle {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-6);
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.breadcrumb a:hover {
    color: var(--accent-primary);
}

.breadcrumb-sep {
    color: var(--text-tertiary);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: var(--font-medium);
}