/* Nexus Console - Dark Theme */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --border-color: #30363d;
    --accent-blue: #58a6ff;
    --accent-green: #3fb950;
    --accent-purple: #a371f7;
    --accent-orange: #d29922;
    --accent-red: #f85149;
    --sidebar-width: 240px;
    --sidebar-collapsed: 60px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ============================================ */
/* LAYOUT */
/* ============================================ */

.console-layout {
    display: flex;
    min-height: 100vh;
}

/* ============================================ */
/* SIDEBAR */
/* ============================================ */

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: width 0.2s ease;
}

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

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .user-name {
    display: none;
}

.sidebar-header {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.logo:hover {
    text-decoration: none;
    color: var(--accent-blue);
}

.logo-icon {
    color: var(--accent-blue);
    font-size: 1.25rem;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1rem;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    padding: 0 1rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-item.active {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    border-left: 2px solid var(--accent-blue);
}

.nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.nav-label {
    font-size: 0.9rem;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ============================================ */
/* MAIN CONTENT */
/* ============================================ */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.2s ease;
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed);
}

.content-header {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb-link {
    color: var(--accent-blue);
}

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

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

.breadcrumb-icon {
    font-size: 1rem;
}

.header-search {
    max-width: 300px;
}

.quick-search input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 200px;
}

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

.quick-search input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.content-body {
    flex: 1;
    padding: 1.5rem;
    max-width: 1200px;
}

/* ============================================ */
/* PAGE HEADER */
/* ============================================ */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.page-stats {
    display: flex;
    gap: 1rem;
}

.stat {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.stat-count {
    color: var(--text-primary);
    font-weight: 600;
}

.page-actions {
    display: flex;
    gap: 0.5rem;
}

/* ============================================ */
/* BUTTONS */
/* ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: #79b8ff;
    text-decoration: none;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    text-decoration: none;
}

/* ============================================ */
/* PROJECT CARDS */
/* ============================================ */

.project-section {
    margin-bottom: 2rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.active { background: var(--accent-green); }
.status-dot.paused { background: var(--accent-orange); }
.status-dot.completed { background: var(--text-muted); }

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: border-color 0.15s ease;
    display: block;
    color: inherit;
}

.project-card:hover {
    border-color: var(--accent-blue);
    text-decoration: none;
}

.project-card.paused { opacity: 0.7; }
.project-card.completed { opacity: 0.6; }

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.project-card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.project-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.project-badge.active { background: var(--accent-green); color: var(--bg-primary); }
.project-badge.paused { background: var(--accent-orange); color: var(--bg-primary); }
.project-badge.completed { background: var(--text-muted); color: var(--bg-primary); }

.project-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.project-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.progress-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    margin-top: 0.75rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-green);
    border-radius: 2px;
}

/* ============================================ */
/* KB CARDS */
/* ============================================ */

.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.kb-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    gap: 1rem;
    transition: border-color 0.15s ease;
    color: inherit;
}

.kb-card:hover {
    border-color: var(--accent-blue);
    text-decoration: none;
}

.kb-card-icon {
    font-size: 2rem;
}

.kb-card-content h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.kb-card-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.kb-card-meta {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ============================================ */
/* TREE VIEW */
/* ============================================ */

.tree-view {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.tree-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tree-header h1 {
    font-size: 1.25rem;
}

.tree-description {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.tree {
    list-style: none;
}

.tree ul {
    list-style: none;
    padding-left: 1.5rem;
}

.tree li {
    margin: 0.25rem 0;
}

.tree .caret {
    cursor: pointer;
    user-select: none;
    display: inline-block;
    padding: 0.25rem 0;
    color: var(--text-primary);
}

.tree .caret::before {
    content: '\25B6';
    color: var(--text-muted);
    display: inline-block;
    margin-right: 0.5rem;
    transition: transform 0.2s;
    font-size: 0.7rem;
}

.tree .caret-down::before {
    transform: rotate(90deg);
}

.tree .nested {
    display: none;
}

.tree .nested.active {
    display: block;
}

.tree .tree-leaf,
.tree .tree-link {
    color: var(--text-primary);
}

.tree .tree-leaf:hover,
.tree .tree-link:hover {
    color: var(--accent-blue);
}

.tree .has-content {
    color: var(--accent-green);
    margin-left: 0.25rem;
}

/* ============================================ */
/* DETAIL VIEW */
/* ============================================ */

.detail-view {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.detail-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.detail-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.detail-title-row h1 {
    font-size: 1.5rem;
}

.detail-description {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.meta-item strong {
    color: var(--text-secondary);
}

/* ============================================ */
/* TASK LIST */
/* ============================================ */

.tasks-section h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.task-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.task-item.completed {
    opacity: 0.6;
}

.task-status {
    width: 24px;
    text-align: center;
}

.status-icon {
    font-size: 0.9rem;
}

.status-icon.completed { color: var(--accent-green); }
.status-icon.in-progress { color: var(--accent-blue); }
.status-icon.pending { color: var(--text-muted); }

.task-content {
    flex: 1;
}

.task-title {
    font-weight: 500;
}

.task-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* ============================================ */
/* NODE VIEW (KB) */
/* ============================================ */

.node-view {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.node-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.node-type-badge {
    display: inline-block;
    background: var(--accent-purple);
    color: var(--bg-primary);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.node-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.node-description {
    color: var(--text-secondary);
}

.node-tags {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
}

.node-content {
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin: 1.5rem 0 0.75rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.markdown-body p {
    margin: 0.75rem 0;
}

.markdown-body ul, .markdown-body ol {
    margin: 0.75rem 0;
    padding-left: 2rem;
}

.markdown-body code {
    background: var(--bg-tertiary);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
    color: var(--accent-orange);
}

.markdown-body pre {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

.markdown-body pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.markdown-body blockquote {
    border-left: 4px solid var(--accent-blue);
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 0 6px 6px 0;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin: 1rem 0;
}

.markdown-body th, .markdown-body td {
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.markdown-body th {
    background: var(--bg-tertiary);
}

.node-children {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.node-children h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.children-list {
    list-style: none;
}

.children-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.children-list li:last-child {
    border-bottom: none;
}

.child-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.node-meta {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.node-nav {
    margin-top: 1.5rem;
}

/* ============================================ */
/* SESSIONS */
/* ============================================ */

.current-session {
    margin-bottom: 2rem;
}

.session-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: block;
    color: inherit;
    margin-bottom: 0.5rem;
    transition: border-color 0.15s ease;
}

.session-card:hover {
    border-color: var(--accent-blue);
    text-decoration: none;
}

.session-card.current {
    border-color: var(--accent-green);
    background: rgba(63, 185, 80, 0.1);
}

.session-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.session-id {
    font-family: monospace;
    font-weight: 600;
}

.session-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.session-badge.active {
    background: var(--accent-green);
    color: var(--bg-primary);
}

.session-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.session-objectives ul {
    padding-left: 1.25rem;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.session-summary {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.sessions-list {
    display: flex;
    flex-direction: column;
}

/* ============================================ */
/* NOTES */
/* ============================================ */

.notes-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.note-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.note-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.note-session {
    font-family: monospace;
}

.note-content h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.note-tags {
    margin-top: 0.75rem;
    display: flex;
    gap: 0.5rem;
}

/* ============================================ */
/* CHRONO */
/* ============================================ */

.reminders-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.reminder-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.reminder-icon {
    font-size: 1.5rem;
}

.reminder-content {
    flex: 1;
}

.reminder-content h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.reminder-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.reminder-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.reminder-status {
    font-size: 1.25rem;
}

.status-pending { color: var(--text-muted); }
.status-snoozed { color: var(--accent-orange); }
.status-done { color: var(--accent-green); }

/* ============================================ */
/* SEARCH */
/* ============================================ */

.search-page h1 {
    margin-bottom: 1.5rem;
}

.search-form {
    display: flex;
    margin-bottom: 1.5rem;
}

.search-form.large input {
    flex: 1;
    max-width: 500px;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 6px 0 0 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.search-form.large input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.search-form button {
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    color: var(--bg-primary);
    border: none;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    font-weight: 500;
}

.results-section {
    margin-bottom: 2rem;
}

.results-section h2 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    display: block;
    color: inherit;
}

.result-item:hover {
    border-color: var(--accent-blue);
    text-decoration: none;
}

.result-title {
    font-weight: 500;
    color: var(--accent-blue);
}

.result-snippet {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.result-path {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.results-count {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ============================================ */
/* EMPTY STATE */
/* ============================================ */

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-state.small {
    padding: 1.5rem;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.empty-state h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.muted {
    color: var(--text-muted);
}

/* ============================================ */
/* ERROR PAGE */
/* ============================================ */

.error-page {
    text-align: center;
    padding: 3rem;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.error-page h1 {
    margin-bottom: 1rem;
}

/* ============================================ */
/* PRIORITY BADGES */
/* ============================================ */

.priority-high {
    color: var(--accent-red);
}

.priority-medium {
    color: var(--accent-orange);
}

.priority-low {
    color: var(--text-muted);
}

/* ============================================ */
/* RESPONSIVE */
/* ============================================ */

@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-collapsed);
    }
    
    .sidebar .logo-text,
    .sidebar .nav-label,
    .sidebar .nav-section-title,
    .sidebar .user-name {
        display: none;
    }
    
    .main-content {
        margin-left: var(--sidebar-collapsed);
    }
    
    .content-body {
        padding: 1rem;
    }
    
    .project-grid,
    .kb-grid {
        grid-template-columns: 1fr;
    }
}

/* KB Category Filters */
.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.category-pill:hover {
    background: var(--accent-color);
    color: var(--text-primary);
}

.category-pill.active {
    background: var(--accent-color);
    color: var(--text-primary);
}

.category-pill .count {
    background: rgba(255,255,255,0.2);
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    font-size: 0.75rem;
}

.kb-category-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: var(--accent-color);
    color: var(--text-primary);
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}