/* ── Reset & base ─────────────────────────────────────────────────── */

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

:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161920;
  --bg-surface: #1c1f2b;
  --bg-hover: #252837;
  --border: #2a2d3a;
  --border-focus: #4a6cf7;
  --text-primary: #ecf0f1;
  --text-secondary: #8b92a5;
  --text-muted: #5a6178;
  --accent: #4a6cf7;
  --accent-hover: #5b7bf8;
  --danger: #e74c3c;
  --danger-hover: #c0392b;
  --success: #2ecc71;
  --orange: #e67e22;
  --sidebar-width: 360px;
  --radius: 8px;
  --radius-sm: 6px;
  --transition: 0.2s ease;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
}

/* ── Sidebar ─────────────────────────────────────────────────────── */

.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.sidebar-header .accent {
  color: var(--accent);
}

.sidebar-header .subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.sidebar-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-section h2 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.sidebar-footer {
  margin-top: auto;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}

/* ── Form elements ───────────────────────────────────────────────── */

label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
select,
textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  transition: border-color var(--transition);
}

input[type="text"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.15);
}

textarea {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  resize: vertical;
  min-height: 100px;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%238b92a5' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.optional-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.optional-fields label {
  font-size: 11px;
}

.optional-fields input {
  font-size: 12px;
  padding: 6px 10px;
}

/* ── Site controls ───────────────────────────────────────────────── */

.site-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-controls select {
  flex: 1;
}

.create-site-row {
  display: flex;
  gap: 8px;
}

.create-site-row input {
  flex: 1;
}

/* ── Buttons ─────────────────────────────────────────────────────── */

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-danger:hover:not(:disabled) {
  background: var(--danger);
  color: #fff;
}

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

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-icon {
  padding: 7px 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-actions {
  display: flex;
  gap: 8px;
}

.form-actions .btn-primary {
  flex: 1;
}

/* ── Status message ──────────────────────────────────────────────── */

.status-msg {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  animation: fadeIn 0.2s ease;
}

.status-msg.success {
  background: rgba(46, 204, 113, 0.12);
  color: var(--success);
  border: 1px solid rgba(46, 204, 113, 0.25);
}

.status-msg.error {
  background: rgba(231, 76, 60, 0.12);
  color: var(--danger);
  border: 1px solid rgba(231, 76, 60, 0.25);
}

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

/* ── Device list ─────────────────────────────────────────────────── */

.device-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.device-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
}

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

.device-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.device-name {
  font-size: 13px;
  font-weight: 500;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-board {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.empty-state {
  font-size: 12px;
  color: var(--text-muted);
  padding: 12px 0;
  text-align: center;
}

/* ── Legend ───────────────────────────────────────────────────────── */

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
}

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

/* ── Main area ───────────────────────────────────────────────────── */

.main-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.network-graph {
  width: 100%;
  flex: 1;
  min-height: 0;
}

/* ── View toolbar ────────────────────────────────────────────────── */

.view-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.view-modes {
  display: flex;
  gap: 4px;
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 3px;
}

.view-mode-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.view-mode-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.view-mode-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(74, 108, 247, 0.3);
}

.view-mode-btn.active svg {
  stroke: #fff;
}

.view-mode-btn svg {
  flex-shrink: 0;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.root-selector {
  display: flex;
  align-items: center;
  gap: 8px;
}

.root-selector label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.root-selector select {
  width: auto;
  min-width: 180px;
  padding: 5px 30px 5px 10px;
  font-size: 12px;
}

.edge-label-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}

.edge-label-toggle input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.search-box:focus-within {
  border-color: var(--border-focus);
}

.search-box svg {
  flex-shrink: 0;
  color: var(--text-muted);
}

.search-box input {
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
  width: 140px;
  padding: 2px 0;
}

.search-box input:focus {
  outline: none;
  box-shadow: none;
}

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

/* ── Text view ───────────────────────────────────────────────────── */

.text-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.text-view-actions {
  display: flex;
  justify-content: flex-end;
  padding: 8px 16px 0;
  flex-shrink: 0;
}

.text-view-actions .btn {
  display: flex;
  align-items: center;
  gap: 5px;
}

.text-view-actions .btn.copied {
  color: var(--success);
  border-color: var(--success);
}

.text-tree-output {
  flex: 1;
  margin: 0;
  padding: 16px 24px 24px;
  overflow: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-primary);
  background: transparent;
  white-space: pre;
  tab-size: 4;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  user-select: text;
}

/* ── Table view ──────────────────────────────────────────────────── */

.table-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.table-view-actions {
  display: flex;
  justify-content: flex-end;
  padding: 8px 16px 0;
  flex-shrink: 0;
}

.table-view-actions .btn {
  display: flex;
  align-items: center;
  gap: 5px;
}

.table-scroll {
  flex: 1;
  overflow: auto;
  padding: 0 16px 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.device-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.device-table th {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  padding: 10px 12px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  z-index: 1;
}

.device-table th:hover {
  color: var(--text-primary);
}

.device-table th .sort-arrow {
  margin-left: 4px;
  font-size: 10px;
  opacity: 0.4;
}

.device-table th.sorted .sort-arrow {
  opacity: 1;
  color: var(--accent);
}

.device-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.device-table td.mono-cell {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}

.device-table tbody tr {
  transition: background var(--transition);
  cursor: pointer;
}

.device-table tbody tr:hover {
  background: var(--bg-hover);
}

.device-table tbody tr.search-dim {
  opacity: 0.25;
}

.device-table .cap-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

/* ── Matrix view ─────────────────────────────────────────────────── */

.matrix-view {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.matrix-scroll {
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.matrix-table {
  border-collapse: collapse;
  font-size: 11px;
}

.matrix-table th {
  padding: 6px 8px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 500;
  border: 1px solid var(--border);
  position: sticky;
  white-space: nowrap;
}

.matrix-table th.matrix-col-header {
  top: 0;
  z-index: 2;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  max-height: 140px;
  min-width: 32px;
}

.matrix-table th.matrix-row-header {
  left: 0;
  z-index: 1;
  text-align: right;
  background: var(--bg-secondary);
}

.matrix-table th.matrix-corner {
  top: 0;
  left: 0;
  z-index: 3;
  background: var(--bg-secondary);
}

.matrix-table td {
  padding: 4px 6px;
  border: 1px solid var(--border);
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-secondary);
  min-width: 32px;
  cursor: default;
}

.matrix-table td.matrix-connected {
  background: rgba(74, 108, 247, 0.15);
  color: var(--accent);
  cursor: pointer;
}

.matrix-table td.matrix-connected:hover {
  background: rgba(74, 108, 247, 0.3);
}

.matrix-table td.matrix-self {
  background: var(--bg-hover);
}

/* ── Port-map view ───────────────────────────────────────────────── */

.portmap-view {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.portmap-scroll {
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.portmap-device {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.portmap-device-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.portmap-device-name {
  font-size: 14px;
  font-weight: 600;
}

.portmap-device-board {
  font-size: 11px;
  color: var(--text-muted);
}

.portmap-ports {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px 16px;
}

.portmap-port {
  width: 52px;
  min-height: 40px;
  padding: 3px 2px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  font-size: 9px;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  position: relative;
}

.portmap-port:hover {
  transform: scale(1.1);
  z-index: 1;
}

.portmap-port.port-connected {
  background: rgba(46, 204, 113, 0.2);
  border-color: var(--success);
  color: var(--success);
}

.portmap-port.port-unused {
  background: var(--bg-hover);
  border-color: var(--border);
  color: var(--text-muted);
}

.portmap-port .port-num {
  font-weight: 600;
  font-size: 10px;
}

.portmap-port.port-highlight {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  background: rgba(74, 108, 247, 0.25) !important;
  transform: scale(1.1);
  z-index: 2;
}

.portmap-port .port-peer {
  font-size: 7px;
  max-width: 48px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-secondary);
}

.portmap-port .port-vlans {
  font-size: 6px;
  max-width: 48px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--accent);
  opacity: 0.8;
  line-height: 1;
}

.portmap-port-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 11px;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 10;
  pointer-events: none;
  display: none;
}

.portmap-port:hover .portmap-port-tooltip {
  display: block;
}

.empty-graph {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 15px;
  color: var(--text-muted);
}

/* vis.js tooltip override */
div.vis-tooltip {
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  padding: 10px 14px !important;
  font-family: 'Inter', system-ui, sans-serif !important;
  font-size: 12px !important;
  line-height: 1.6 !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4) !important;
  max-width: 360px !important;
}

/* ── Device details panel ────────────────────────────────────────── */

.device-details {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 320px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.device-details.visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.detail-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 1;
}

.detail-close:hover {
  background: var(--border);
  color: var(--text-primary);
}

.device-details h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 10px;
  padding-right: 28px;
  border-bottom: 1px solid var(--border);
}

.device-details h4 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-top: 14px;
  margin-bottom: 8px;
}

.detail-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  font-size: 12px;
}

.detail-label {
  color: var(--text-muted);
  font-weight: 500;
}

.detail-grid .mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}

.conn-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.conn-item {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  padding: 6px 8px;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
}

/* ── Interface list (device detail) ──────────────────────────────── */

.iface-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.iface-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
}

.iface-running { background: rgba(46, 204, 113, 0.08); }
.iface-down { background: var(--bg-hover); }
.iface-disabled { background: rgba(231, 76, 60, 0.08); opacity: 0.6; }

.iface-status {
  font-weight: 700;
  width: 12px;
  flex-shrink: 0;
  text-align: center;
}

.iface-running .iface-status { color: var(--success); }
.iface-down .iface-status { color: var(--text-muted); }
.iface-disabled .iface-status { color: var(--danger); }

.iface-name {
  font-weight: 500;
  color: var(--text-primary);
  min-width: 80px;
}

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

.iface-comment {
  color: var(--text-secondary);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 10px;
  font-style: italic;
  margin-left: auto;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── IP address styling ─────────────────────────────────────────── */

.ip-iface {
  color: var(--text-muted);
  font-size: 11px;
}

.ip-dynamic {
  font-size: 10px;
  color: var(--accent);
  background: rgba(74, 108, 247, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
}

/* ── VLAN list styling ──────────────────────────────────────────── */

.vlan-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.vlan-item {
  padding: 8px;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  font-size: 11px;
}

.vlan-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.vlan-id {
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

.vlan-comment {
  font-size: 10px;
  color: var(--text-muted);
  font-style: italic;
}

.vlan-ports {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 4px;
}

.vlan-tag-label {
  display: inline-block;
  width: 14px;
  font-weight: 700;
  color: var(--success);
}

.vlan-untag-label {
  display: inline-block;
  width: 14px;
  font-weight: 700;
  color: var(--orange);
}

/* ── Connection detail (edge click) ──────────────────────────────── */

.conn-detail-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
}

.conn-detail-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  width: 100%;
  text-align: center;
}

.conn-detail-name {
  font-size: 14px;
  font-weight: 600;
}

.conn-detail-board {
  font-size: 11px;
  color: var(--text-muted);
}

.conn-detail-iface {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-top: 4px;
}

.conn-detail-arrow {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* ── Traverse mode ─────────────────────────────────────────────── */

.section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  padding: 4px 12px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn-sm {
  font-size: 11px;
  padding: 5px 10px;
}

.traverse-section {
  flex: 1;
  overflow-y: auto;
  gap: 14px !important;
}

.traverse-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.traverse-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-bar-track {
  height: 6px;
  background: var(--bg-hover);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease;
  min-width: 0;
}

.progress-bar-fill.complete {
  background: var(--success);
}

.progress-stats {
  font-size: 11px;
  color: var(--text-secondary);
}

.stat-visited { color: var(--success); font-weight: 600; }
.stat-pending { color: #f39c12; font-weight: 600; }
.stat-dead { color: var(--danger); font-weight: 600; }

.traverse-step {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.traverse-queue {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.traverse-queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.traverse-queue-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.traverse-queue-count {
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-hover);
  color: var(--text-secondary);
  padding: 2px 8px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

.traverse-cmd-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.traverse-cmd-copy {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding: 6px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.traverse-cmd-copy code {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-copy {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}

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

.btn-copy.copied svg {
  stroke: var(--success);
}

.traverse-neighbor-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.traverse-neighbor-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.traverse-neighbor-item:hover {
  border-color: var(--border-focus);
  background: var(--bg-hover);
}

.traverse-neighbor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.traverse-neighbor-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.traverse-neighbor-board {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.traverse-neighbor-actions {
  display: flex;
  gap: 6px;
}

.btn-copy-cmd {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  white-space: nowrap;
}

.btn-copy-cmd:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.btn-copy-cmd.copied {
  border-color: var(--success);
  color: var(--success);
}

.btn-copy-cmd .cmd-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-copy-cmd svg {
  flex-shrink: 0;
}

.btn-dead-end {
  padding: 5px 10px;
  background: transparent;
  border: 1px solid var(--danger);
  border-radius: 4px;
  color: var(--danger);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.traverse-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.traverse-extra-checks {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.extra-checks-label {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.extra-check {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.extra-check input[type="checkbox"] {
  width: 13px;
  height: 13px;
  accent-color: var(--accent);
  cursor: pointer;
  margin: 0;
}

.extra-check span {
  white-space: nowrap;
}

.traverse-dot-visited {
  border: 2px solid var(--success);
  background: transparent !important;
}

.traverse-dot-pending {
  border: 2px solid #f39c12;
  background: transparent !important;
}

.traverse-dot-dead {
  border: 2px solid var(--danger);
  background: transparent !important;
}

/* ── Sidebar title row ─────────────────────────────────────────── */

.sidebar-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.header-buttons {
  display: flex;
  gap: 6px;
}

.btn-icon-round {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-icon-round:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background: var(--bg-hover);
}

/* ── Import/Export row ─────────────────────────────────────────── */

.import-export-row {
  display: flex;
  gap: 8px;
}

.import-export-row .btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.import-export-row .btn svg {
  flex-shrink: 0;
}

/* ── Share controls ──────────────────────────────────────────────── */

.share-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(74, 108, 247, 0.08);
  border: 1px solid rgba(74, 108, 247, 0.2);
  border-radius: var(--radius-sm);
}

.share-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.share-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.share-badge svg {
  flex-shrink: 0;
}

.revision-select {
  width: auto;
  min-width: 0;
  flex: 1;
  padding: 3px 24px 3px 8px;
  font-size: 11px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%238b92a5' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
}

.share-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* ── Modal overlay ─────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn 0.2s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  max-width: 680px;
  width: 90%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.25s ease;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 700;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── Help modal content ────────────────────────────────────────── */

.help-section {
  margin-bottom: 28px;
}

.help-section:last-child {
  margin-bottom: 0;
}

.help-section h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--accent);
}

.help-section p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.help-section ol,
.help-section ul {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  padding-left: 20px;
  margin-bottom: 8px;
}

.help-section li {
  margin-bottom: 4px;
}

.help-section li strong {
  color: var(--text-primary);
}

.help-section em {
  color: var(--accent);
  font-style: normal;
  font-weight: 500;
}

.help-code {
  display: inline-block;
  padding: 3px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-primary);
  word-break: break-all;
}

.help-section code {
  padding: 1px 5px;
  background: var(--bg-surface);
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-primary);
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.help-card {
  padding: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.help-card strong {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.help-card p {
  font-size: 12px;
  margin-bottom: 0;
}

.help-legend-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.help-legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.help-legend-item .legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.help-legend-item strong {
  color: var(--text-primary);
}

.help-pre {
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-primary);
  overflow-x: auto;
  white-space: pre;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.manifest-actions {
  margin-top: 10px;
}

.manifest-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ── About modal ──────────────────────────────────────────────── */

.about-modal-content {
  max-width: 480px;
}

.about-body {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.about-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 400px;
}

.about-logo {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.about-github-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.about-github-link:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.about-github-link svg {
  flex-shrink: 0;
}

.about-license {
  font-size: 12px !important;
  color: var(--text-muted) !important;
  margin-top: 4px;
}

.about-license a {
  color: var(--accent);
  text-decoration: none;
}

.about-license a:hover {
  text-decoration: underline;
}

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