:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --sidebar: #0f1419;
  --sidebar-hover: #1a2332;
  --sidebar-active: #1e3a5f;
  --text: #1a1d23;
  --text-muted: #5c6573;
  --text-on-dark: #e8ecf1;
  --text-muted-on-dark: #8b95a5;
  --border: #e2e8f0;
  --accent: #0d9488;
  --accent-hover: #0f766e;
  --accent-soft: rgba(13, 148, 136, 0.12);
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.1);
  --success: #059669;
  --warning: #d97706;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(15, 20, 25, 0.06), 0 4px 12px rgba(15, 20, 25, 0.04);
  --shadow-lg: 0 8px 30px rgba(15, 20, 25, 0.1);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --sidebar-width: 260px;
  --header-height: 64px;
  --transition: 0.18s ease;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

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

a:hover { color: var(--accent-hover); }

/* App shell */
.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar);
  color: var(--text-on-dark);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  z-index: 100;
}

.sidebar-resizer {
  flex-shrink: 0;
  width: 6px;
  margin-left: -3px;
  margin-right: -3px;
  cursor: col-resize;
  position: relative;
  z-index: 101;
  touch-action: none;
  background: transparent;
  transition: background var(--transition);
}

.sidebar-resizer::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  border-radius: 1px;
  background: transparent;
  transition: background var(--transition);
}

.sidebar-resizer:hover::after,
.sidebar-resizer:focus-visible::after,
.sidebar-resizer.is-dragging::after {
  background: rgba(13, 148, 136, 0.55);
}

.sidebar-resizer:focus-visible {
  outline: none;
}

.sidebar-resizer:focus-visible::after {
  background: var(--accent);
}

body.sidebar-resizing {
  cursor: col-resize !important;
  user-select: none;
}

body.sidebar-resizing * {
  cursor: col-resize !important;
}

.sidebar-brand {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-brand a {
  color: var(--text-on-dark);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-brand a:hover { color: #fff; }

.brand-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), #14b8a6);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 0.65rem 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.sidebar-footer {
  flex-shrink: 0;
  padding: 0.75rem 0.65rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-link.nav-logout {
  color: #f0a8a8;
}

.nav-link.nav-logout:hover {
  background: rgba(220, 38, 38, 0.15);
  color: #fecaca;
}

.nav-section {
  margin-bottom: 1.25rem;
}

.nav-section-title {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted-on-dark);
  padding: 0.35rem 0.6rem;
  margin-bottom: 0.25rem;
}

.nav-group {
  margin: 0.1rem 0 0.5rem;
}

.nav-group-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted-on-dark);
  padding: 0.35rem 0.65rem 0.3rem;
  pointer-events: none;
}

.nav-group-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0 0.5rem 0 0.75rem;
  padding: 0.2rem 0 0.2rem 0.55rem;
  border-left: 2px solid rgba(255, 255, 255, 0.12);
}

.nav-group-items .nav-link {
  padding: 0.38rem 0.6rem;
  font-size: 0.84rem;
  border-radius: 6px;
  margin: 0;
}

.nav-group-items .nav-link.active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 500;
}

.nav-group-open .nav-group-label {
  color: var(--text-on-dark);
}

.projects-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.5rem 0.35rem 0.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.projects-toolbar-tabs {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.projects-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.subnav {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  padding: 0.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.subnav-link {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}

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

.subnav-link.active {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.project-card-archived {
  opacity: 0.95;
  border-style: dashed;
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted-on-dark);
  font-size: 0.88rem;
  transition: background var(--transition), color var(--transition);
}

.nav-link .nav-label {
  line-height: 1.3;
}

.nav-relation {
  font-size: 0.68rem;
  color: var(--text-muted-on-dark);
  opacity: 0.85;
  font-family: ui-monospace, monospace;
  letter-spacing: -0.02em;
}

.nav-tree {
  margin-left: 0.35rem;
  padding-left: 0.65rem;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-link.nav-child {
  padding: 0.35rem 0.55rem;
  font-size: 0.82rem;
}

.nav-link.nav-root {
  font-weight: 500;
  margin-top: 0.15rem;
}

.nav-link:hover {
  background: var(--sidebar-hover);
  color: var(--text-on-dark);
}

.nav-link:hover .nav-relation {
  color: #a8b4c4;
}

.nav-link.active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 500;
}

.nav-link.active .nav-relation {
  color: #7dd3c0;
  opacity: 1;
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.page-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1.75rem;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.page-header h1 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.page-header .subtitle {
  margin: 0.25rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.breadcrumb {
  display: block;
  margin: 0.5rem 0 0;
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  font-family: ui-monospace, monospace;
}

.page-content {
  padding: 1.5rem 1.75rem 2.5rem;
  flex: 1;
}

/* Projects → detail view: fill viewport; side gutters match main page content */
.page-content:has(#projectBrowser.project-browser.is-detail) {
  padding: 1rem 1.75rem 0.75rem;
  display: flex;
  flex-direction: column;
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
}

.page-content:has(#projectBrowser.project-browser.is-detail) #projectBrowser.project-browser.is-detail {
  flex: 1 1 0;
  min-height: 0;
  max-height: none;
  margin-bottom: 0;
}

.project-view[hidden],
.project-detail[hidden],
#projectListView[hidden] {
  display: none !important;
}

.project-browser.is-detail {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  min-height: 0;
  max-height: none;
  overflow: hidden;
}

.project-browser.is-detail .project-panel-header {
  grid-row: 1;
  padding-bottom: 0.35rem;
}

.project-browser.is-detail .project-detail-toolbar {
  grid-row: 2;
}

.project-browser.is-detail .project-panel-body {
  grid-row: 3;
  animation: project-view-in 0.22s ease;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  display: grid;
  grid-template-rows: minmax(0, 1fr);
}

.project-browser.is-detail .project-view-detail:not([hidden]) {
  min-height: 0;
  overflow: hidden;
  display: grid;
  grid-template-rows: minmax(0, 1fr);
}

.project-browser.is-detail .project-detail:not([hidden]) {
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.project-browser.is-detail .project-detail-panel.project-detail-plan,
.project-browser.is-detail .project-detail-panel.project-detail-tasks,
.project-browser.is-detail .project-detail-panel.project-detail-overview {
  min-height: 0;
  max-width: none;
  width: 100%;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.project-browser.is-detail .project-detail-panel.project-detail-plan,
.project-browser.is-detail .project-detail-panel.project-detail-tasks,
.project-browser.is-detail .project-detail-panel.project-detail-overview {
  padding: 0;
}

.project-browser.is-detail .plan-workspace,
.project-browser.is-detail .task-workspace {
  min-height: 0;
  height: 100%;
  align-self: stretch;
}

/* Merged domain hubs */
.hub-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.hub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  padding: 0.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.hub-tab {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}

.hub-tab:hover {
  background: #f1f5f9;
  color: var(--text);
}

.hub-tab.active {
  background: var(--accent);
  color: #fff;
}

.hub-panel-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.hub-panel-meta code {
  font-size: 0.78rem;
  background: #f1f5f9;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

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

.hub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}

.hub-card:hover {
  box-shadow: var(--shadow-lg);
}

.hub-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.hub-card h3 a {
  color: var(--text);
}

.hub-card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  margin-top: 0.75rem;
}

.mini-stat {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: #f8fafc;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.mini-stat.error {
  color: var(--danger);
  background: var(--danger-soft);
}

.form-field .hint {
  font-weight: 400;
  color: var(--text-muted);
}

/* Dashboard cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card a {
  color: inherit;
  display: block;
}

.stat-card .label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  font-weight: 500;
}

.stat-card .value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}

.stat-card.error .value { color: var(--danger); font-size: 1rem; }

.stat-card .value.ok { color: var(--success); }

/* Panels */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.95rem;
}

.project-panel-header {
  padding: 0.85rem 1.15rem;
}

.project-browser.is-detail .project-panel-header {
  border-bottom: none;
}

.project-detail-toolbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 2.75rem;
  padding: 0.45rem 1.15rem;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 2px solid var(--accent);
}

.project-browser.is-detail .project-detail-toolbar {
  display: flex;
}

.project-detail-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.project-detail-nav-link {
  display: inline-block;
  margin: 0;
  padding: 0.4rem 0.85rem;
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

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

.project-detail-nav-link.active {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.project-detail-nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* Hide orphan tab stubs (legacy broken markup had a third empty link) */
.project-detail-nav-link:not([data-project-tab]),
.project-detail-nav-link:empty {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.project-detail-plan,
.project-detail-tasks {
  min-height: 16rem;
}

.project-detail-panel.project-detail-plan,
.project-detail-panel.project-detail-tasks {
  max-width: none;
  width: 100%;
  padding: 1.15rem 0 0;
}

/* Tab panes — [hidden] must win over layout display rules */
.project-detail-pane[hidden] {
  display: none !important;
}

.project-detail-pane[data-project-pane="overview"]:not([hidden]),
.project-detail-pane[data-project-pane="plan"]:not([hidden]),
.project-detail-pane[data-project-pane="tasks"]:not([hidden]) {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  width: 100%;
  overflow: hidden;
}

/* —— Task workspace (project detail) —— */
.task-workspace {
  --plan-sidebar-w: clamp(14rem, 22vw, 20rem);
  width: 100%;
  flex: 1;
  min-height: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.project-detail-panel.project-detail-tasks > .plan-unlinked {
  margin: 1rem 1.25rem;
  flex: 0 0 auto;
}

.project-detail-panel.project-detail-tasks > .task-workspace {
  flex: 1 1 auto;
  min-height: min(16rem, 50vh);
}

.task-tree {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0.5rem 0.75rem;
}

.task-tree-children {
  list-style: none;
  margin: 0.15rem 0 0;
  padding: 0 0 0 0.75rem;
  border-left: 2px solid var(--border);
}

.task-tree-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  margin: 0.1rem 0;
  padding: 0.45rem 0.55rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.84rem;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
}

.task-tree-btn:hover {
  background: var(--surface-hover, rgba(0, 0, 0, 0.04));
}

.task-tree-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.task-tree-label {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;
}

.task-tree-id {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  opacity: 0.9;
}

.task-tree-btn.active .task-tree-id {
  color: var(--accent);
}

.task-tree-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-tree-filter-label {
  display: block;
  padding: 0 0.65rem 0.5rem;
}

.task-tree-filter {
  width: 100%;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.82rem;
  background: var(--bg);
  color: var(--text);
}

.task-tree-filter:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.task-status {
  flex-shrink: 0;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: capitalize;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--text-muted);
}

.task-status--in_progress {
  background: #dbeafe;
  color: #1d4ed8;
}

.task-status--blocked {
  background: #fee2e2;
  color: #b91c1c;
}

.task-status--done {
  background: #dcfce7;
  color: #15803d;
}

.task-status--cancelled {
  background: #f3f4f6;
  color: #6b7280;
}

.task-detail {
  padding: 0;
  max-width: none;
}

.task-detail-v2 {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.task-detail-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}

.task-detail-identity {
  min-width: 0;
  flex: 1;
}

.task-detail-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.task-detail-title-row h4 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.task-id-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--accent-soft);
  color: var(--accent);
}

.task-detail-meta {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.task-detail-meta code {
  font-size: 0.78rem;
}

.btn-xs {
  padding: 0.15rem 0.45rem;
  font-size: 0.72rem;
}

.btn-block {
  width: 100%;
}

.task-detail-tabs {
  display: flex;
  gap: 0.15rem;
  padding: 0 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  overflow-x: auto;
}

.task-detail-tab {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition);
}

.task-detail-tab:hover {
  color: var(--text);
}

.task-detail-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.task-tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.1rem;
  padding: 0 0.3rem;
  margin-left: 0.2rem;
  border-radius: 999px;
  font-size: 0.68rem;
  background: var(--accent-soft);
  color: var(--accent);
}

.task-detail-form {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.task-detail-panel {
  padding: 1rem 1.25rem;
  display: none;
}

.task-detail-panel.active {
  display: block;
}

.task-panel-hint {
  margin: 0 0 0.85rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.task-schema-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.4;
}

.task-dep-fieldset {
  margin: 1rem 0 0;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.task-dep-fieldset legend {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0 0.25rem;
}

.task-dep-picker {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 14rem;
  overflow-y: auto;
}

.task-dep-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.45rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.84rem;
}

.task-dep-option:hover {
  background: var(--surface-hover, rgba(0, 0, 0, 0.04));
}

.task-dep-option-id {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.task-dep-option-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-dep-empty {
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.task-detail-actions {
  padding: 0.75rem 1.25rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.task-delete-form {
  margin: 0 1.25rem 1rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}

.task-detail-views:not([hidden]) {
  display: block;
  min-height: 0;
  overflow: auto;
}

.task-section-title {
  margin: 1.25rem 0 0.65rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.task-diagram-workspace {
  display: grid;
  grid-template-columns: minmax(9rem, 11rem) minmax(0, 1fr);
  gap: 0;
  min-height: min(22rem, 55vh);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
}

.task-diagram-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-right: 1px solid var(--border);
  background: var(--surface);
}

.task-diagram-sidebar-title {
  margin: 0;
  padding: 0.55rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.task-diagram-nav {
  list-style: none;
  margin: 0;
  padding: 0.35rem;
  flex: 1;
  overflow-y: auto;
}

.task-diagram-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  width: 100%;
  margin: 0.1rem 0;
  padding: 0.45rem 0.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  text-align: left;
  cursor: pointer;
}

.task-diagram-nav-btn:hover {
  background: var(--surface-hover, rgba(0, 0, 0, 0.04));
}

.task-diagram-nav-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.task-diagram-nav-id {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.task-diagram-nav-type {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.task-diagram-nav-btn.active .task-diagram-nav-type {
  color: var(--accent);
  opacity: 0.85;
}

.task-diagram-create-form {
  margin-top: auto;
  padding: 0.65rem;
  border-top: 1px solid var(--border);
}

.task-diagram-stage {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  position: relative;
}

.task-diagram-stage-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.task-diagram-panel {
  display: none;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.task-diagram-panel.active {
  display: flex;
}

.task-diagram-panel-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.task-diagram-preview {
  flex: 0 0 auto;
}

.task-diagram-edit-form {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.65rem;
  border-top: 1px solid var(--border);
}

.task-diagrams-empty {
  margin: 0;
  padding: 0.65rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.task-diagram-type {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.task-diagram-id {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.task-diagram-preview.plan-mermaid-block {
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.task-diagram-preview .plan-mermaid-render {
  padding: 0.75rem;
  overflow-x: auto;
  background: #fff;
  min-height: 6rem;
}

.task-create-dialog .form-grid,
.task-create-dialog .plan-form-row {
  margin-bottom: 0.5rem;
}

@media (max-width: 720px) {
  .task-diagram-workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .task-diagram-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: 12rem;
  }
}

.btn-danger-text {
  color: #b91c1c;
}

.btn-danger-text:hover {
  background: #fee2e2;
  color: #991b1b;
}

/* —— Plan workspace —— */
.plan-workspace {
  --plan-sidebar-w: clamp(14rem, 22vw, 20rem);
  width: 100%;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.plan-layout {
  display: grid;
  grid-template-columns: var(--plan-sidebar-w) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  flex: 1;
  min-height: 0;
  min-width: 0;
  max-width: 100%;
  height: 100%;
  overflow: hidden;
}

.plan-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
}

.plan-sidebar-head {
  flex-shrink: 0;
  padding: 0.85rem 0.9rem 0.65rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.plan-sidebar-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.plan-sidebar-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.plan-composer-toggle {
  flex-shrink: 0;
}

.plan-doc-picker {
  display: block;
  margin-bottom: 0.5rem;
}

.plan-doc-select {
  width: 100%;
  font: inherit;
  font-size: 0.84rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.plan-doc-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.plan-doc-single {
  margin: 0 0 0.5rem;
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.35;
}

.plan-doc-single-meta {
  display: block;
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.plan-tree-search-wrap {
  margin-top: 0.25rem;
}

.plan-tree-search {
  width: 100%;
  font: inherit;
  font-size: 0.84rem;
  padding: 0.45rem 0.55rem 0.45rem 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%235c6573' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85zm-5.242.656a5 5 0 1 1 0-10 5 5 0 0 1 0 10z'/%3E%3C/svg%3E") 0.5rem center no-repeat;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.plan-tree-search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background-color: var(--surface);
}

.plan-composer {
  flex-shrink: 0;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  max-height: 45vh;
  overflow: auto;
}

.plan-composer-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0.65rem;
  padding: 0.2rem;
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.plan-composer-tab {
  flex: 1;
  padding: 0.35rem 0.5rem;
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.plan-composer-tab:hover {
  color: var(--text);
}

.plan-composer-tab.active {
  background: var(--surface);
  color: var(--accent-hover);
  box-shadow: 0 1px 2px rgba(15, 20, 25, 0.06);
}

.plan-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.plan-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  width: 100%;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.plan-label input,
.plan-label select,
.plan-label textarea {
  font: inherit;
  font-weight: 400;
  font-size: 0.84rem;
  color: var(--text);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.plan-label input:focus,
.plan-label select:focus,
.plan-label textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.plan-label textarea {
  resize: vertical;
  min-height: 5rem;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.8rem;
  line-height: 1.45;
}

.plan-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.plan-doc-tool-hint {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.plan-tree-hint {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.plan-tree-scroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 0.35rem 0.25rem 0.65rem;
}

.plan-fs-nav {
  margin: 0;
}

/* File-explorer tree */
.plan-fs-tree,
.plan-fs-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.plan-fs-children {
  margin-left: 0;
  padding-left: 0;
}

.plan-fs-item {
  user-select: none;
}

.plan-fs-item--hidden {
  display: none !important;
}

.plan-fs-item--doc > .plan-fs-row {
  font-weight: 600;
}

.plan-fs-item--active-doc > .plan-fs-row {
  background: rgba(13, 148, 136, 0.08);
}

.plan-fs-item--placeholder .plan-fs-label {
  color: var(--text-muted);
  font-style: italic;
  font-weight: 400;
}

.plan-fs-row {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 0;
  min-height: 1.65rem;
  padding-right: 0.25rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.plan-fs-row:hover {
  background: rgba(15, 20, 25, 0.04);
}

.plan-fs-row.is-selected {
  background: var(--accent-soft);
  box-shadow: inset 2px 0 0 var(--accent);
}

.plan-fs-chevron {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.65rem;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.plan-fs-chevron::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  margin: -3px 0 0 -4px;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--text-muted);
  transition: transform var(--transition);
}

.plan-fs-chevron--collapsed::before {
  transform: rotate(0deg);
}

.plan-fs-chevron:not(.plan-fs-chevron--collapsed)::before {
  transform: rotate(90deg);
}

.plan-fs-chevron--spacer {
  pointer-events: none;
}

.plan-fs-chevron--spacer::before {
  display: none;
}

.plan-fs-icon {
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
  margin: 0 0.35rem 0 0.15rem;
  background: center / contain no-repeat;
}

.plan-fs-icon--folder {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ca8a04'%3E%3Cpath d='M1.5 3.5A1.5 1.5 0 0 1 3 2h3.17a1.5 1.5 0 0 1 1.06.44L8.5 4H13a1.5 1.5 0 0 1 1.5 1.5v7A1.5 1.5 0 0 1 13 14H3a1.5 1.5 0 0 1-1.5-1.5v-9z'/%3E%3C/svg%3E");
}

.plan-fs-icon--file,
.plan-fs-icon--markdown {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2364748b'%3E%3Cpath d='M4 1.5A1.5 1.5 0 0 1 5.5 0h4.12a1.5 1.5 0 0 1 1.06.44l2.88 2.88A1.5 1.5 0 0 1 14 4.62V13.5A1.5 1.5 0 0 1 12.5 15h-8A1.5 1.5 0 0 1 3 13.5v-12z'/%3E%3C/svg%3E");
}

.plan-fs-icon--diagram {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563eb'%3E%3Cpath d='M2 2h4v4H2V2zm8 0h4v4h-4V2zM2 10h4v4H2v-4zm8 0h4v4h-4v-4z'/%3E%3C/svg%3E");
}

.plan-fs-icon--chart {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23047857'%3E%3Cpath d='M2 13h12V3H2v10zm2-2V9h2v2H4zm3 0V7h2v4H7zm3 0V5h2v6h-2z'/%3E%3C/svg%3E");
}

.plan-fs-icon--image {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237c3aed'%3E%3Cpath d='M1.5 2A1.5 1.5 0 0 1 3 .5h10A1.5 1.5 0 0 1 14.5 2v12a1.5 1.5 0 0 1-1.5 1.5H3A1.5 1.5 0 0 1 1.5 14V2zm3 2.25a1.25 1.25 0 1 0 0-2.5 1.25 1.25 0 0 0 0 2.5zM2 11.5l3-3 2 2 4-4.5 1.5 1.5V13H2v-1.5z'/%3E%3C/svg%3E");
}

.plan-fs-icon--html {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ea580c'%3E%3Cpath d='M2 1.5h12v2H2v-2zm0 4h8v2H2v-2zm0 4h10v2H2v-2zm0 4h6v2H2v-2z'/%3E%3C/svg%3E");
}

.plan-fs-icon--embed {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23db2777'%3E%3Cpath d='M6 2.5 2.5 6 6 9.5 4.5 11 0 6.5 4.5 2 6 3.5 2.5 6 6 8.5 10 6 11.5 15 7 11.5 10 8.5 6 6 2.5z'/%3E%3C/svg%3E");
}

.plan-fs-label-btn {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.8125rem;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

a.plan-fs-label-btn:visited {
  color: inherit;
}

.plan-fs-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.plan-fs-ext {
  flex-shrink: 0;
  margin-left: 0.15rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.85;
}

.plan-fs-meta {
  flex-shrink: 0;
  margin-left: 0.35rem;
  padding-right: 0.25rem;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-fs-add {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  margin-right: 0.15rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
}

.plan-fs-row:hover .plan-fs-add,
.plan-fs-add:focus {
  opacity: 1;
}

.plan-fs-add:hover {
  background: var(--surface);
  color: var(--accent-hover);
}

.plan-fs-delete {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  margin-right: 0.1rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
}

.plan-fs-row:hover .plan-fs-delete,
.plan-fs-delete:focus {
  opacity: 1;
}

.plan-fs-delete:hover {
  background: #fef2f2;
  color: #b91c1c;
}

/* Indent nested levels (explorer-style) */
.plan-fs-item--doc > .plan-fs-children > .plan-fs-item > .plan-fs-row { padding-left: 0.15rem; }
.plan-fs-item--doc > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-row { padding-left: 1.1rem; }
.plan-fs-item--doc > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-row { padding-left: 2.05rem; }
.plan-fs-item--doc > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-children > .plan-fs-item > .plan-fs-row { padding-left: 3rem; }

.plan-fs-children .plan-fs-children {
  position: relative;
  margin-left: 0.65rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border);
}

/* Content header icons (reuse explorer set) */
.plan-kind-icon {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  display: inline-block;
  background: center / contain no-repeat;
}

.plan-kind-icon--folder { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ca8a04'%3E%3Cpath d='M1.5 3.5A1.5 1.5 0 0 1 3 2h3.17a1.5 1.5 0 0 1 1.06.44L8.5 4H13a1.5 1.5 0 0 1 1.5 1.5v7A1.5 1.5 0 0 1 13 14H3a1.5 1.5 0 0 1-1.5-1.5v-9z'/%3E%3C/svg%3E"); }
.plan-kind-icon--file,
.plan-kind-icon--text { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2364748b'%3E%3Cpath d='M4 1.5A1.5 1.5 0 0 1 5.5 0h4.12a1.5 1.5 0 0 1 1.06.44l2.88 2.88A1.5 1.5 0 0 1 14 4.62V13.5A1.5 1.5 0 0 1 12.5 15h-8A1.5 1.5 0 0 1 3 13.5v-12z'/%3E%3C/svg%3E"); }

.plan-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  background: var(--surface);
}

.plan-mobile-nav {
  display: none;
  flex-shrink: 0;
  align-items: center;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fafc 0%, var(--surface) 100%);
}

.plan-mobile-nav[hidden] {
  display: none !important;
}

.plan-mobile-tree-btn {
  gap: 0.4rem;
  font-weight: 600;
  color: var(--accent-hover);
  border-color: var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.plan-mobile-tree-btn:hover {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(13, 148, 136, 0.35);
}

.plan-mobile-tree-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 0;
}

.plan-mobile-tree-icon[hidden] {
  display: none !important;
}

.plan-content-panel {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  position: relative;
}

.plan-content-panel [hidden] {
  display: none !important;
}

.plan-content-panel:not(.plan-has-selection) .plan-content-views {
  display: none !important;
}

.plan-content-panel.plan-has-selection .plan-content-empty {
  display: none !important;
}

.plan-content-empty,
.plan-content-views {
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  max-width: 100%;
}

.plan-content-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  overflow: auto;
}

.plan-content-empty-inner {
  max-width: 18rem;
  text-align: center;
}

.plan-content-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.85;
}

.plan-content-empty h4 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}

.plan-content-empty p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.plan-content-views {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: contain;
  padding: 0;
}

.plan-content-views .plan-content-item {
  max-width: 100%;
}

.plan-content-item {
  animation: plan-fade-in 0.2s ease;
  display: flex;
  flex-direction: column;
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.plan-content-item[hidden] {
  display: none !important;
}

@keyframes plan-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.plan-content-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  flex-shrink: 0;
  margin: 0;
  padding: 1rem 1.25rem 0.75rem;
  box-sizing: border-box;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.plan-content-header-main {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.plan-content-header-main .plan-kind-icon {
  width: 2rem;
  height: 2rem;
  font-size: 0.9rem;
}

.plan-content-header h4 {
  margin: 0;
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  word-break: break-word;
}

@media (max-width: 640px) {
  .plan-content-header {
    flex-direction: column;
    align-items: stretch;
  }

  .plan-content-actions {
    margin-left: 0;
    align-self: flex-end;
  }

  .plan-content-meta {
    width: 100%;
  }
}

.plan-content-meta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.plan-content-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  flex-shrink: 0;
}

.plan-content-view[hidden],
.plan-content-edit[hidden] {
  display: none !important;
}

.plan-content-view,
.plan-content-edit {
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  max-width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
  padding: 1rem 1.25rem 1.25rem;
}

.plan-content-item--editing .plan-content-edit {
  flex: 1 1 0;
  min-height: 0;
}

/* Form fills padded area only — no nested scroll (avoids 100% + scrollbar-gutter overflow) */
.plan-content-edit-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin: 0;
}

.plan-content-edit-form .plan-label,
.plan-content-edit-form .plan-content-edit-actions {
  min-width: 0;
  max-width: 100%;
}

.plan-content-edit-form .plan-content-textarea {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.8125rem;
  line-height: 1.5;
  min-height: 12rem;
  max-height: min(60vh, 32rem);
  resize: vertical;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  overflow-x: hidden;
  overflow-y: auto;
}

.plan-content-edit-form .plan-label textarea:focus,
.plan-content-edit-form .plan-label input:focus,
.plan-content-edit-form .plan-label select:focus {
  outline: none;
  border-color: var(--accent);
  /* Inset glow avoids spilling past padded panel */
  box-shadow: inset 0 0 0 1px var(--accent), 0 0 0 2px var(--accent-soft);
}

.plan-content-edit-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.plan-content-item--editing .plan-content-header {
  border-bottom-color: var(--accent, #3b82f6);
}

.plan-content-body {
  font-size: 0.92rem;
  line-height: 1.6;
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.plan-content-folder,
.plan-content-empty-node,
.plan-content-link {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.88rem;
}

.plan-markdown-block .plan-md-source,
.plan-html-block .plan-html-source,
.plan-mermaid-source,
.plan-chart-source {
  display: none;
}

.plan-html-block {
  margin: 0;
}

.plan-html-frame {
  display: block;
  width: 100%;
  min-height: 120px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
}

.project-detail-plan .plan-markdown-block .plan-md-render.prose {
  max-width: none;
}

.plan-markdown-block .plan-md-render.prose h1,
.plan-markdown-block .plan-md-render.prose h2,
.plan-markdown-block .plan-md-render.prose h3 {
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.plan-markdown-block .plan-code-wrap {
  position: relative;
  margin: 1rem 0;
}

.plan-markdown-block .plan-code-lang {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  padding: 0.28rem 0.65rem;
  font-family: var(--font-sans, system-ui, sans-serif);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #94a3b8;
  background: rgba(15, 20, 25, 0.85);
  border-bottom-left-radius: var(--radius-sm);
  border-left: 1px solid rgba(148, 163, 184, 0.2);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  pointer-events: none;
}

.plan-markdown-block .plan-code-wrap pre {
  margin: 0;
  overflow: auto;
  max-width: 100%;
  padding: 2rem 0.85rem 0.85rem;
  border-radius: var(--radius-sm);
  background: #0d1117;
  border: 1px solid rgba(148, 163, 184, 0.15);
  font-size: 0.82rem;
  line-height: 1.55;
  -webkit-overflow-scrolling: touch;
}

.plan-markdown-block .plan-md-render.prose pre code {
  display: block;
  padding: 0;
  background: transparent;
  font-size: inherit;
  line-height: inherit;
  border-radius: 0;
}

/* Fallback: ensure readable text when hljs isn't applied (e.g. protobuf) */
.plan-markdown-block .plan-code-wrap pre,
.plan-markdown-block .plan-md-render.prose pre:not(.plan-code-wrap pre) {
  color: #c9d1d9;
}

.plan-markdown-block .plan-md-render.prose pre code:not(.hljs) {
  color: #c9d1d9;
}

/* Let highlight.js theme control token colors (do not force color: inherit) */
.plan-markdown-block .plan-md-render.prose pre code.hljs {
  background: transparent;
}

.plan-markdown-block .plan-md-render.prose .hljs {
  background: #0d1117;
  color: #c9d1d9;
}

.plan-markdown-block .plan-md-render.prose pre:not(.plan-code-wrap pre) {
  overflow-x: auto;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: #0d1117;
  font-size: 0.82rem;
}

.plan-markdown-block .plan-md-render.prose table {
  width: 100%;
  margin: 1rem 0;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.plan-markdown-block .plan-md-render.prose th,
.plan-markdown-block .plan-md-render.prose td {
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.plan-markdown-block .plan-md-render.prose th {
  background: var(--bg);
  font-weight: 600;
}

.plan-text-block {
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  white-space: pre-wrap;
  overflow-x: auto;
}

.plan-mermaid-block,
.plan-chart-block {
  max-width: 100%;
  min-width: 0;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: auto;
}

.plan-mermaid-render {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
}

.plan-mermaid-render svg {
  display: block;
  max-width: 100%;
  height: auto !important;
}

.plan-chart-canvas {
  max-width: 100%;
}

.plan-content-figure {
  margin: 0;
  text-align: center;
}

.plan-content-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.plan-empty {
  padding: 1.25rem 0.75rem;
  text-align: center;
}

.plan-empty p {
  margin: 0 0 0.35rem;
  font-weight: 600;
  font-size: 0.88rem;
}

.plan-empty span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.plan-unlinked {
  padding: 2.5rem 1.5rem;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.plan-unlinked-icon {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.plan-unlinked h4 {
  margin: 0 0 0.5rem;
}

.plan-unlinked p {
  margin: 0;
  max-width: 28rem;
  margin-inline: auto;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.project-plan-placeholder {
  margin: 0;
}

@media (min-width: 901px) and (max-width: 1100px) {
  .plan-workspace {
    --plan-sidebar-w: min(16rem, 30vw);
  }
}

@media (max-width: 900px) {
  .plan-workspace {
    --plan-sidebar-w: 100%;
  }

  .plan-layout {
    grid-template-columns: 1fr;
    min-height: min(20rem, 50vh);
  }

  .project-browser.is-detail {
    max-height: calc(100vh - 5.5rem);
  }

  .plan-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: min(42vh, 22rem);
  }

  .plan-workspace.plan-show-content .plan-sidebar {
    display: none;
  }

  .plan-mobile-nav:not([hidden]) {
    display: flex;
  }

  .plan-mobile-tree-btn {
    display: inline-flex;
  }

  .plan-workspace:not(.plan-show-content) .plan-main {
    display: none;
  }

  .plan-composer {
    max-height: 50vh;
  }

  .plan-form-row {
    grid-template-columns: 1fr;
  }

  .plan-kind-badge {
    display: none;
  }
}

@media (max-width: 520px) {
  .plan-sidebar-head {
    padding: 0.65rem 0.7rem 0.5rem;
  }

  .plan-content-header {
    padding: 0.75rem 1rem 0.65rem;
  }

  .plan-content-view,
  .plan-content-edit {
    padding: 0.75rem 1rem 1rem;
  }
}

.panel-header-main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2rem;
}

a.panel-back-btn {
  text-decoration: none;
}

.panel-back-btn {
  display: none !important;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem 0.4rem 0.55rem;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.project-browser.is-detail .panel-back-btn {
  display: inline-flex !important;
}

.panel-back-btn:hover {
  color: var(--accent-hover);
  border-color: #cbd5e1;
  background: var(--accent-soft);
}

.panel-back-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.panel-back-icon {
  font-size: 1rem;
  line-height: 1;
}

.project-panel-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  min-width: 0;
}

.project-view {
  animation: project-view-in 0.22s ease;
}

@keyframes project-view-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-body { padding: 1.25rem; }

/* Tables */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.data-table th {
  text-align: left;
  padding: 0.65rem 0.85rem;
  background: #f8fafc;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border);
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.data-table tbody tr:hover td {
  background: var(--accent-soft);
}

.data-table .cell-mono {
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
}

.table-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.75rem 0.85rem;
  background: rgba(248, 250, 252, 0.9);
}

.table-pager-top {
  border-bottom: 1px solid var(--border);
}

.table-pager-bottom {
  border-top: 1px solid var(--border);
}

.table-pager-left,
.table-pager-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.table-pager-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
}

.table-pager select {
  width: auto;
  padding: 0.35rem 0.55rem;
  font-size: 0.85rem;
}

.table-pager .btn {
  padding: 0.35rem 0.6rem;
  font-size: 0.82rem;
}

.table-pager .btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.empty-state {
  text-align: center;
  padding: 2.5rem;
  color: var(--text-muted);
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.9rem;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), transform 0.1s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: #f1f5f9;
  color: var(--text);
}

.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

/* Login page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(13, 148, 136, 0.15), transparent),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem 2rem 1.75rem;
  box-shadow: var(--shadow-lg);
}

.login-card .brand {
  text-align: center;
  margin-bottom: 1.75rem;
}

.login-card .brand-mark {
  margin: 0 auto 0.75rem;
}

.login-card h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-card .tagline {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.alert-error {
  background: var(--danger-soft);
  color: var(--danger);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 1rem;
}

.alert-success {
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 1rem;
}

.panel-accent .panel-header {
  background: linear-gradient(90deg, var(--accent-soft), transparent);
  border-bottom-color: var(--accent);
}

.form-field select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.9rem;
  background: #fff;
}

.field-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.project-list .meta.path {
  margin-top: 0.15rem;
  font-size: 0.78rem;
  opacity: 0.85;
}

.project-list .meta code {
  font-size: 0.75rem;
}

.panel-count {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 0.35rem;
}

.project-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff 0%, #fafbfc 100%);
  padding: 0;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  overflow: hidden;
}

.project-card-body-link {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.project-card-body-link:focus-visible {
  outline: none;
}

.project-card-selectable {
  cursor: default;
}

.project-card-selectable:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.project-card-selectable:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}

.project-card-selectable[aria-expanded="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(13, 148, 136, 0.15), var(--shadow-lg);
}

.project-card-desc {
  margin: 0.35rem 0 0.5rem;
  color: var(--text-muted, #6b7280);
  font-size: 0.875rem;
  line-height: 1.45;
}

.project-metadata-form {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border, #e5e7eb);
}

.project-card-body {
  padding: 1.1rem 1.15rem 0.85rem;
}

.project-card-open-hint {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity var(--transition), color var(--transition);
}

.project-card-selectable:hover .project-card-open-hint,
.project-card-selectable:focus-visible .project-card-open-hint {
  opacity: 1;
  color: var(--accent-hover);
}

.project-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
}

.project-card:not(.project-card-selectable):hover {
  transform: none;
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.project-card-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.project-card-title h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.project-slug {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
}

.project-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-soft), rgba(13, 148, 136, 0.25));
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
}

.project-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

.badge-draft { background: #fef3c7; color: #92400e; }
.badge-active { background: #d1fae5; color: #065f46; }
.badge-ok { background: #d1fae5; color: #065f46; }
.badge-muted { background: #f1f5f9; color: var(--text-muted); }

.project-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
  margin: 0 0 1rem;
  font-size: 0.82rem;
}

.project-meta dt {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.project-meta dd {
  margin: 0.15rem 0 0;
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  word-break: break-all;
}

.project-card-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.75rem 1.15rem;
  border-top: 1px solid var(--border);
  background: rgba(248, 250, 252, 0.85);
}

.project-detail {
  max-width: none;
}

.project-detail-panel {
  max-width: none;
  width: 100%;
  padding: 0;
}

/* —— Overview workspace (matches plan tab chrome) —— */
.overview-workspace {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.overview-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  flex-shrink: 0;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fafc 0%, var(--surface) 100%);
}

.overview-hero-main {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.overview-hero h3 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.overview-scroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1.15rem 1.25rem 1.35rem;
  -webkit-overflow-scrolling: touch;
}

.overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 17rem);
  gap: 1rem;
  align-items: start;
}

.overview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
  min-width: 0;
}

.overview-card:not(.overview-card-actions) {
  grid-column: 1;
}

.overview-card-title {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.overview-card-actions {
  grid-column: 2;
  grid-row: 1 / -1;
  align-self: start;
  position: sticky;
  top: 0;
}

.overview-card-actions .project-detail-actions {
  flex-direction: column;
  align-items: stretch;
}

.overview-card-actions .project-detail-actions .btn,
.overview-card-actions .project-detail-actions form {
  width: 100%;
}

.overview-card-actions .project-detail-actions .btn {
  justify-content: center;
}

.project-icon-lg {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  font-size: 1.25rem;
}

.project-detail-meta {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  margin: 0;
  font-size: 0.86rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.project-detail-meta > div {
  display: contents;
}

.project-detail-meta dt {
  margin: 0;
  padding: 0.6rem 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.project-detail-meta dd {
  margin: 0;
  padding: 0.6rem 0.9rem;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  line-height: 1.45;
  word-break: break-word;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.project-detail-meta dt:last-of-type,
.project-detail-meta dd:last-of-type {
  border-bottom: none;
}

@media (max-width: 900px) {
  .page-content:has(#projectBrowser.project-browser.is-detail) {
    padding-inline: 1rem;
  }

  .overview-grid {
    grid-template-columns: 1fr;
  }

  .overview-card-actions {
    grid-column: 1;
    grid-row: auto;
    position: static;
  }

  .overview-card-actions .project-detail-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .overview-card-actions .project-detail-actions .btn,
  .overview-card-actions .project-detail-actions form {
    width: auto;
  }
}

@media (max-width: 640px) {
  .project-detail-meta {
    grid-template-columns: 1fr;
  }

  .project-detail-meta dt {
    border-bottom: none;
    padding-bottom: 0.2rem;
  }

  .project-detail-meta dd {
    padding-top: 0;
    padding-bottom: 0.75rem;
  }
}

.project-snapshot-table {
  font-size: 0.84rem;
}

.project-detail-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.inline-form { display: inline; }

.action-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
}

.build-result-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal.is-open {
  display: flex;
}

body.modal-open {
  overflow: hidden;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 20, 25, 0.5);
  backdrop-filter: blur(2px);
}

.modal-dialog {
  position: relative;
  width: min(640px, 100%);
  max-height: min(85vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  animation: modal-in 0.2s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-status-success .modal-header {
  background: linear-gradient(180deg, #ecfdf5 0%, #fff 100%);
  border-bottom-color: #a7f3d0;
}

.modal-status-error .modal-header {
  background: linear-gradient(180deg, #fef2f2 0%, #fff 100%);
  border-bottom-color: #fecaca;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.modal-close {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover {
  background: var(--bg);
  color: var(--text);
}

.modal-body {
  padding: 1rem 1.15rem;
  overflow: auto;
  flex: 1;
  min-height: 0;
}

.modal-footer {
  padding: 0.85rem 1.15rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  background: #fafbfc;
}

.build-log-summary {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  font-family: ui-monospace, monospace;
  color: var(--text);
  word-break: break-all;
}

.build-log-output {
  margin: 0;
  padding: 0.75rem 0.85rem;
  max-height: 50vh;
  overflow: auto;
  font-size: 0.75rem;
  line-height: 1.45;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
}

.version-choice {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.version-choice-label {
  margin: 0 0 0.15rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.version-choice-option {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.version-choice-option:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.version-choice-option input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.version-bump-row {
  display: none;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1.6rem;
  padding: 0.35rem 0;
}

.version-bump-row label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.version-bump-row select {
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.project-action-form {
  display: inline;
}

dialog.version-dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  max-width: min(520px, calc(100vw - 2rem));
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}

dialog.version-dialog-wide {
  max-width: min(640px, calc(100vw - 2rem));
}

dialog.version-dialog-wide .form-grid {
  grid-template-columns: 1fr 1fr;
}

dialog.version-dialog::backdrop {
  background: rgba(15, 20, 25, 0.5);
  backdrop-filter: blur(2px);
}

.build-progress {
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.25);
  overflow: hidden;
  margin: 0.75rem 0 0.25rem;
}

.build-progress[hidden] { display: none !important; }

.build-progress-bar {
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: build-progress-slide 1.1s linear infinite;
}

@keyframes build-progress-slide {
  from { transform: translateX(-120%); }
  to { transform: translateX(280%); }
}

.terminal-toolbar {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.terminal-toolbar .form-field {
  flex: 1 1 320px;
}

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

.terminal-output {
  margin-top: 0.65rem;
  min-height: 280px;
}

.terminal-shell {
  background: #0b1220;
  color: #e5e7eb;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: var(--radius);
  padding: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.45;
  min-height: 340px;
  max-height: 520px;
  overflow: hidden;
  outline: none;
  position: relative;
}

.terminal-xterm {
  width: 100%;
  height: 420px;
}

.terminal-xterm .xterm {
  height: 100%;
  width: 100%;
  padding: 0.85rem 0.95rem;
  box-sizing: border-box;
}

.terminal-xterm .xterm-viewport,
.terminal-xterm .xterm-screen {
  width: 100% !important;
}

.terminal-xterm .xterm-viewport {
  border-radius: calc(var(--radius) - 2px);
  scrollbar-color: rgba(148, 163, 184, 0.45) rgba(15, 23, 42, 0.6);
  scrollbar-width: thin;
}

.terminal-xterm .xterm-viewport::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.terminal-xterm .xterm-viewport::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.6);
  border-radius: 999px;
}

.terminal-xterm .xterm-viewport::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.42);
  border-radius: 999px;
  border: 2px solid rgba(15, 23, 42, 0.6);
}

.terminal-xterm .xterm-viewport::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.62);
}

.terminal-xterm .xterm-viewport::-webkit-scrollbar-corner {
  background: rgba(15, 23, 42, 0.6);
}

.terminal-shell:focus-visible {
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.25);
  border-color: rgba(13, 148, 136, 0.8);
}

.terminal-shell.is-busy {
  opacity: 0.9;
}

.terminal-muted { color: rgba(203, 213, 225, 0.75); }
.terminal-error { color: #fca5a5; font-weight: 600; }

.terminal-hint {
  margin-top: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.terminal-tabs {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0 0 0.6rem;
  flex-wrap: wrap;
}

.terminal-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(248, 250, 252, 0.75);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  user-select: none;
}

.terminal-tab.active {
  background: var(--accent-soft);
  border-color: rgba(13, 148, 136, 0.55);
  color: var(--accent-hover);
}

.terminal-tab-label {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.terminal-tab-close {
  display: inline-flex;
  width: 1.15rem;
  height: 1.15rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--text-muted);
  font-weight: 700;
  line-height: 1;
}

.terminal-tab:hover .terminal-tab-close {
  background: rgba(148, 163, 184, 0.22);
  color: var(--text);
}

.terminal-tab-add {
  font-weight: 800;
  padding: 0.35rem 0.7rem;
}

.version-dialog-inner {
  padding: 1.15rem 1.25rem 1rem;
}

.version-dialog-inner h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.version-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.version-bump-row[hidden] {
  display: none !important;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  border: 1px solid var(--danger);
}

.btn-danger:hover {
  background: #b91c1c;
  border-color: #b91c1c;
  color: #fff;
}

.version-dialog-danger .version-dialog-inner h3 {
  color: var(--danger);
}

.version-choice-danger:has(input:checked) {
  border-color: #fca5a5;
  background: var(--danger-soft);
}

@media (max-width: 600px) {
  .project-meta { grid-template-columns: 1fr; }
  .project-cards { grid-template-columns: 1fr; }
}

.project-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.project-list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}

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

.project-list .name {
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.project-list .meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
}

/* Mobile */
.sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 200;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-lg);
  font-size: 1.25rem;
  cursor: pointer;
}

@media (max-width: 900px) {
  .sidebar-resizer { display: none; }

  .sidebar {
    position: fixed;
    left: 0;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .sidebar.open { transform: translateX(0); }

  .sidebar-toggle { display: flex; align-items: center; justify-content: center; }

  .page-content { padding: 1rem; }
  .page-header { padding: 1rem; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

@media (max-width: 480px) {
  .form-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr 1fr; }
}