/* ============================================================
   NetworkView — Global Styles
   Dark network-tool aesthetic
   ============================================================ */

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

:root {
  --bg:           #0d1117;
  --surface:      #161b22;
  --surface2:     #21262d;
  --surface3:     #30363d;
  --border:       #30363d;
  --border2:      #21262d;
  --text:         #e6edf3;
  --text2:        #8b949e;
  --text3:        #6e7681;
  --accent:       #58a6ff;
  --accent-dim:   #1f6feb;
  --success:      #3fb950;
  --warning:      #d29922;
  --danger:       #f85149;
  --sidebar-w:    200px;
  --radius:       6px;
  --radius-lg:    10px;
}

html, body, #root {
  height: 100%;
  width: 100%;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  scrollbar-width: thin;
  scrollbar-color: var(--surface3) transparent;
}

/* Slim scrollbar for all scrollable elements — Chrome/Safari/Edge */
::-webkit-scrollbar              { width: 6px; height: 6px; }
::-webkit-scrollbar-track        { background: transparent; }
::-webkit-scrollbar-thumb        { background: var(--surface3); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover  { background: var(--border); }
::-webkit-scrollbar-corner       { background: transparent; }

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

/* ============================================================ Layout */
.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.main-content {
  flex: 1;
  min-width: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0;
  background: var(--bg);
  scrollbar-gutter: stable;
}

/* ============================================================ Sidebar */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

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

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text) !important;
  text-decoration: none !important;
  font-weight: 600;
  font-size: 16px;
}

.logo-icon { font-size: 20px; }
.logo-text { color: var(--accent); }

.sidebar-search { padding: 10px 12px; position: relative; }

.search-input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 6px 10px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--accent); }

.search-results {
  position: absolute;
  top: calc(100% - 4px);
  left: 8px; right: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  z-index: 100;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--text) !important;
  font-size: 13px;
  text-decoration: none !important;
  transition: background 0.1s;
}
.search-result-item:hover { background: var(--surface3); }
.search-result-icon { font-size: 12px; }
.search-result-sub { color: var(--text2); font-size: 11px; }
.search-no-results { padding: 12px; color: var(--text2); text-align: center; }

.sidebar-nav { padding: 8px 0; flex: 1; }

.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  color: var(--text2);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: var(--radius);
  transition: background 0.1s, color 0.1s;
}
.icon-btn:hover { background: var(--surface3); color: var(--accent); }

.inline-add-form {
  display: flex;
  gap: 4px;
  padding: 4px 8px;
  align-items: center;
}
.inline-input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--text);
  padding: 4px 8px;
  font-size: 12px;
  outline: none;
}
.inline-btn {
  background: var(--accent-dim);
  border: none;
  border-radius: var(--radius);
  color: white;
  cursor: pointer;
  font-size: 11px;
  padding: 4px 8px;
}
.inline-btn.secondary { background: var(--surface3); }

/* Tree nodes */
.tree-node { display: flex; flex-direction: column; }
.tree-children { padding-left: 16px; }
.tree-empty { padding: 4px 8px 4px 32px; color: var(--text3); font-size: 12px; font-style: italic; }

.tree-item {
  display: flex;
  align-items: center;
  padding: 2px 4px;
  border-radius: var(--radius);
  margin: 1px 4px;
  transition: background 0.1s;
}
.tree-item:hover { background: var(--surface2); }
.tree-item.active { background: var(--accent-dim) !important; }
.tree-item.active .tree-label { color: white; }

.tree-expand {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 10px;
  padding: 2px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.tree-expand:hover { color: var(--text); }

.tree-label {
  display: flex;
  align-items: center;
  gap: 5px;
  flex: 1;
  color: var(--text);
  text-decoration: none !important;
  font-size: 13px;
  padding: 2px 0;
  min-width: 0;
}

.tree-icon { font-size: 12px; flex-shrink: 0; }
.tree-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-count {
  background: var(--surface3);
  color: var(--text3);
  border-radius: 10px;
  font-size: 10px;
  padding: 1px 6px;
  flex-shrink: 0;
}

.tree-rack .tree-label { padding-left: 20px; }
.tree-rack { margin-left: 4px; }

.sidebar-loading { padding: 12px; color: var(--text2); font-size: 13px; }
.sidebar-empty { padding: 16px; color: var(--text2); font-size: 13px; }
.sidebar-empty p { margin-bottom: 8px; }

/* ============================================================ Pages */
.page { padding: 20px 24px; max-width: 1400px; width: 100%; box-sizing: border-box; }
.page-loading { padding: 48px; color: var(--text2); text-align: center; }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text2);
  font-size: 13px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb span:last-child { color: var(--text); }

.page-actions { display: flex; gap: 8px; flex-shrink: 0; align-items: center; }

/* Entity header */
.entity-header { margin-bottom: 24px; }
.entity-title {
  font-size: 24px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.entity-icon { font-size: 22px; }
.entity-location { color: var(--text2); font-size: 14px; }

.entity-meta-row { display: flex; gap: 8px; flex-wrap: wrap; }
.entity-meta-chip {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 10px;
  font-size: 12px;
  color: var(--text2);
}

/* Content sections */
.content-section {
  margin-bottom: 32px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  flex: 1;
  margin-right: 16px;
}

.empty-state {
  padding: 24px;
  color: var(--text2);
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}
.empty-state-sm { padding: 12px; color: var(--text3); font-size: 13px; }

/* ============================================================ Buttons */
.btn-primary {
  background: var(--accent-dim);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  color: white;
  cursor: pointer;
  font-size: 14px;
  padding: 6px 14px;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  padding: 6px 14px;
  transition: background 0.15s;
}
.btn-secondary:hover { background: var(--surface3); }

.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  color: var(--danger);
  cursor: pointer;
  font-size: 14px;
  padding: 6px 14px;
  transition: background 0.15s, color 0.15s;
}
.btn-danger:hover { background: var(--danger); color: white; }

.btn-sm { font-size: 12px; padding: 4px 10px; }

/* ============================================================ Forms */
.form-group { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; }
.form-group-lg { flex: 2; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; width: 100%; box-sizing: border-box; }
.form-group label { font-size: 12px; color: var(--text2); font-weight: 500; }

.form-input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  padding: 7px 10px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
.form-input:focus { border-color: var(--accent); }
.form-hint { font-size: 11px; color: var(--text3); }
.form-error {
  background: rgba(248,81,73,0.1);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  color: var(--danger);
  padding: 8px 12px;
  font-size: 13px;
  margin-bottom: 12px;
}
.form-actions { display: flex; gap: 8px; margin-top: 8px; }

.edit-meta-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 24px;
}

/* ============================================================ Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
}
.modal-sm { max-width: 400px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 17px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 8px;
  border-radius: var(--radius);
}
.modal-close:hover { background: var(--surface2); color: var(--text); }

.modal-form { padding: 20px; }
.modal-footer {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}

/* ============================================================ Rack Visual */
.rack-wrapper { width: 100%; max-width: 800px; }

.rack-stats-bar {
  display: flex;
  gap: 16px;
  padding: 8px 0;
  margin-bottom: 16px;
  color: var(--text2);
  font-size: 13px;
}
.rack-stat strong { color: var(--text); }
.rack-stat-used strong { color: var(--warning); }
.rack-stat-free strong { color: var(--success); }

.rack-cabinet {
  background: #0d1117;
  border: 3px solid #30363d;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5), inset 0 0 0 1px #21262d;
}

.rack-top-strip {
  background: linear-gradient(180deg, #21262d 0%, #161b22 100%);
  border-bottom: 2px solid #30363d;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.rack-label-text { color: var(--text); font-weight: 600; font-size: 13px; letter-spacing: 0.05em; }
.rack-label-sub { color: var(--text2); font-size: 11px; }

.rack-body { display: flex; flex-direction: column; }

.rack-slot {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid #21262d;
  cursor: pointer;
  transition: filter 0.1s;
  min-height: 30px;
  position: relative;
}
.rack-slot:hover { filter: brightness(1.15); }

.rack-slot-empty {
  background: #0d1117;
}
.rack-slot-empty:hover { background: #161b22; }

.rack-unit-num {
  width: 34px;
  min-width: 34px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 7px;
  font-size: 10px;
  color: #484f58;
  border-right: 1px solid #21262d;
  font-family: 'SF Mono', 'Fira Code', monospace;
  background: #0d1117;
  flex-shrink: 0;
}

.rack-empty-label {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: #21262d;
  font-size: 11px;
  font-family: monospace;
  letter-spacing: 0.1em;
}

.rack-add-hint {
  opacity: 0;
  margin-right: 10px;
  font-size: 11px;
  color: var(--accent);
  transition: opacity 0.15s;
}
.rack-slot-empty:hover .rack-add-hint { opacity: 1; }
.rack-slot-empty:hover .rack-empty-label { color: #484f58; }

.rack-component-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4px 10px;
  overflow: hidden;
  gap: 2px;
}

.rack-component-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rack-component-type-badge {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255,255,255,0.07);
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

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

.rack-component-status { font-size: 10px; flex-shrink: 0; }

.rack-component-sub {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rack-component-model,
.rack-component-ip {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.rack-component-units { font-size: 11px; font-weight: 600; }

.rack-component-model-inline,
.rack-component-ip-inline {
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  font-family: 'SF Mono', monospace;
}
.rack-component-units-inline { font-size: 11px; font-weight: 600; opacity: 0.7; }

.rack-screw-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  padding: 4px 6px;
  gap: 4px;
}
.rack-screw {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #30363d;
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.1);
}

.rack-bottom-strip {
  height: 10px;
  background: linear-gradient(0deg, #21262d 0%, #161b22 100%);
  border-top: 2px solid #30363d;
}

/* Unpositioned */
.rack-unpositioned { margin-top: 20px; }
.rack-unpositioned-title { font-size: 13px; color: var(--text2); margin-bottom: 8px; }
.rack-unpositioned-list { display: flex; flex-direction: column; gap: 4px; }
.rack-unpositioned-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.1s;
  font-size: 13px;
}
.rack-unpositioned-item:hover { background: var(--surface2); }
.rack-unpositioned-name { color: var(--text); font-weight: 500; }

/* ============================================================ Rack Cards */
.racks-grid { display: flex; flex-direction: column; gap: 12px; }

.rack-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  text-decoration: none !important;
  transition: border-color 0.15s, background 0.15s;
  color: var(--text);
}
.rack-card:hover { border-color: var(--accent); background: var(--surface2); }

.rack-card-visual {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 30px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 3px;
  padding: 3px;
}
.rack-card-unit {
  height: 5px;
  background: #21262d;
  border-radius: 1px;
}

.rack-card-info { flex: 1; }
.rack-card-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.rack-card-meta { font-size: 12px; color: var(--text2); }
.rack-card-count { font-size: 12px; color: var(--text3); margin-top: 2px; }

/* ============================================================ Dashboard */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.dashboard-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-decoration: none !important;
  color: var(--text);
  transition: border-color 0.15s;
}
.dashboard-card:hover { border-color: var(--accent); }
.dashboard-card-icon { font-size: 28px; }
.dashboard-card-name { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.dashboard-card-sub { font-size: 12px; color: var(--text2); }
.dashboard-card-meta { font-size: 12px; color: var(--text3); margin-top: 4px; }

/* ============================================================ Welcome */
.welcome-screen {
  max-width: 600px;
  margin: 80px auto;
  text-align: center;
  padding: 32px;
}
.welcome-icon { font-size: 56px; margin-bottom: 16px; }
.welcome-title { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.welcome-sub { color: var(--text2); font-size: 15px; line-height: 1.6; margin-bottom: 32px; }

.welcome-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  font-size: 14px;
  color: var(--text2);
}
.step strong { color: var(--text); }
.step-num {
  background: var(--accent-dim);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================ Cards grid */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }

.entity-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
  text-decoration: none !important;
  color: var(--text);
  transition: border-color 0.15s;
}
.entity-card:hover { border-color: var(--accent); }
.entity-card-icon { font-size: 20px; }
.entity-card-name { font-size: 14px; font-weight: 500; }
.entity-card-meta { font-size: 12px; color: var(--text3); }

/* ============================================================ Component Table */
.component-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  table-layout: fixed;
}
.component-table th {
  padding: 8px 12px;
  text-align: left;
  color: var(--text2);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.component-table td { padding: 9px 12px; border-bottom: 1px solid var(--border2); }
.component-table-row { cursor: pointer; transition: background 0.1s; }
.component-table-row:hover { background: var(--surface); }
.td-position { color: var(--text2); font-family: monospace; font-size: 12px; width: 36px; }
.td-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.td-type { color: var(--text2); text-transform: capitalize; width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.td-model, .td-ip { color: var(--text3); font-family: monospace; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Status badges */
.status-badge {
  display: inline-flex;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.status-active { background: rgba(63,185,80,0.15); color: #3fb950; }
.status-maintenance { background: rgba(210,153,34,0.15); color: #d29922; }
.status-decommissioned { background: rgba(248,81,73,0.15); color: #f85149; }

/* ============================================================ Component Detail */
.component-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.component-type-badge {
  padding: 4px 10px;
  border-radius: var(--radius);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.component-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.meta-field {
  background: var(--surface2);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.meta-field-label { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.06em; display: block; margin-bottom: 4px; }
.meta-field-value { font-size: 14px; color: var(--text); font-family: 'SF Mono', monospace; }

/* ============================================================ Ports */
.add-port-form {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
}

.ports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}

.port-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}

.port-number {
  width: 32px;
  height: 32px;
  background: var(--accent-dim);
  color: white;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  font-family: monospace;
  flex-shrink: 0;
}

.port-info { flex: 1; min-width: 0; }
.port-label { font-size: 13px; font-weight: 500; color: var(--text); }
.port-type { font-size: 11px; color: var(--text2); }
.port-notes { font-size: 11px; color: var(--text3); font-style: italic; margin-top: 2px; }

.port-link-chain {
  font-size: 11px;
  color: var(--accent);
  margin-top: 4px;
  font-family: monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Patch Panel link picker (inside switch port edit/add) */
.pp-link-picker {
  background: rgba(88,166,255,0.05);
  border: 1px solid rgba(88,166,255,0.18);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.pp-link-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.pp-link-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pp-link-row .form-input-sm {
  flex: 1;
  min-width: 140px;
}
.pp-link-device-hint {
  font-size: 12px;
  color: var(--text2);
  padding: 5px 8px;
  background: rgba(88,166,255,0.08);
  border-radius: 4px;
}
.pp-link-device-hint strong { color: var(--text1); }
.pp-link-clear {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  cursor: pointer;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius);
  align-self: flex-start;
  transition: color 0.1s, border-color 0.1s;
}
.pp-link-clear:hover { color: var(--danger); border-color: var(--danger); }

.port-delete {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 12px;
  padding: 4px;
  border-radius: var(--radius);
  transition: color 0.1s, background 0.1s;
  flex-shrink: 0;
}
.port-delete:hover { background: rgba(248,81,73,0.15); color: var(--danger); }\n\n.port-edit-btn {\n  background: none;\n  border: none;\n  color: var(--text3);\n  cursor: pointer;\n  font-size: 14px;\n  padding: 4px;\n  border-radius: var(--radius);\n  transition: color 0.1s, background 0.1s;\n  flex-shrink: 0;\n}\n.port-edit-btn:hover { background: rgba(88,166,255,0.1); color: var(--accent); }

/* ============================================================ Markdown Editor */
.md-editor {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}

.md-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.md-mode-tabs { display: flex; gap: 4px; }

.md-mode-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 10px;
  transition: all 0.1s;
}
.md-mode-btn:hover { background: var(--surface3); color: var(--text); }
.md-mode-btn.active { background: var(--accent-dim); border-color: var(--accent-dim); color: white; }

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

.save-status { font-size: 12px; }
.save-status-saved { color: var(--success); }
.save-status-saving { color: var(--warning); }
.save-status-unsaved { color: var(--text2); }

.md-help-hint { font-size: 11px; color: var(--text3); }

.md-editor-body { display: flex; min-height: 280px; }
.md-mode-edit .md-editor-body { }
.md-mode-preview .md-editor-body { }
.md-mode-split .md-editor-body { }

.md-textarea {
  flex: 1;
  background: var(--surface);
  border: none;
  color: var(--text);
  font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  outline: none;
  padding: 16px;
  resize: vertical;
  min-height: 280px;
  width: 50%;
}
.md-mode-edit .md-textarea { width: 100%; }
.md-mode-preview .md-textarea { display: none; }

.md-preview {
  flex: 1;
  padding: 16px 20px;
  overflow-y: auto;
  min-height: 280px;
  border-left: 1px solid var(--border);
  width: 50%;
}
.md-mode-edit .md-preview { display: none; }
.md-mode-preview .md-preview { width: 100%; border-left: none; }

.md-preview-empty { color: var(--text3); font-style: italic; font-size: 13px; }

/* Markdown content styles */
.md-preview h1, .md-preview h2, .md-preview h3,
.md-preview h4, .md-preview h5, .md-preview h6 {
  color: var(--text);
  margin: 16px 0 8px;
  font-weight: 600;
  line-height: 1.3;
}
.md-preview h1 { font-size: 20px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.md-preview h2 { font-size: 17px; }
.md-preview h3 { font-size: 15px; }
.md-preview p { color: var(--text2); line-height: 1.7; margin-bottom: 12px; font-size: 14px; }
.md-preview a { color: var(--accent); }
.md-preview strong { color: var(--text); }
.md-preview em { color: var(--text2); }
.md-preview code {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: #ff7b72;
  font-family: 'SF Mono', monospace;
  font-size: 12px;
  padding: 1px 6px;
}
.md-preview pre {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  overflow-x: auto;
  margin-bottom: 14px;
}
.md-preview pre code {
  background: none;
  border: none;
  color: var(--text);
  padding: 0;
  font-size: 13px;
}
.md-preview ul, .md-preview ol {
  color: var(--text2);
  padding-left: 24px;
  margin-bottom: 12px;
}
.md-preview li { margin-bottom: 4px; line-height: 1.6; }
.md-preview li input[type="checkbox"] { margin-right: 6px; }
.md-preview table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 13px;
}
.md-preview th {
  background: var(--surface2);
  color: var(--text);
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--border);
  font-weight: 600;
}
.md-preview td {
  padding: 7px 12px;
  border: 1px solid var(--border);
  color: var(--text2);
}
.md-preview tr:nth-child(even) td { background: var(--surface2); }
.md-preview blockquote {
  border-left: 3px solid var(--accent-dim);
  padding: 8px 16px;
  color: var(--text2);
  margin: 12px 0;
  background: var(--surface2);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.md-preview hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ═══════════════════════════════════════════════════════════
   RACK PAGE — TWO-COLUMN LAYOUT
   ═══════════════════════════════════════════════════════════ */
.page-rack { max-width: 100%; }
.rack-page-columns {
  display: grid;
  grid-template-columns: 35fr 65fr;
  gap: 20px;
  align-items: start;
  margin-top: 12px;
  width: 100%;
  box-sizing: border-box;
}
.rack-page-left { display: flex; flex-direction: column; gap: 24px; min-width: 0; overflow: hidden; }
.rack-page-right {
  position: sticky;
  top: 80px;
  align-self: start;
  min-width: 0;
}
.rack-page-right-scroll {
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  overflow-x: hidden;
}
.rack-page-right-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}
.rack-page-right-title { font-size: 13px; font-weight: 600; color: var(--text1); letter-spacing: 0.04em; }
.rack-page-right-hint  { font-size: 11px; color: var(--text3); }

.rack-unpositioned-title { font-size: 11px; color: var(--text3); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.rack-unpositioned-list  { display: flex; flex-direction: column; gap: 4px; }
.rack-unpositioned-item  {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 8px; background: var(--surface); border-radius: 4px; cursor: pointer;
  transition: background 0.15s;
}
.rack-unpositioned-item:hover { background: var(--surface2); }
.rack-unpositioned-name  { font-size: 12px; color: var(--text1); }
.port-count-row          { background: rgba(99,179,237,0.05); border-radius: 6px; padding: 8px 4px 0; }

/* ═══════════════════════════════════════════════════════════
   RACK GRAPHIC — CABINET & SLOTS
   ═══════════════════════════════════════════════════════════ */
.rack-gfx { width: 100%; }
.rack-gfx-cabinet {
  background: #06080d;
  border: 3px solid #2d3748;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.04);
}
.rack-gfx-top {
  background: linear-gradient(180deg,#1a202c,#0d111a);
  border-bottom: 2px solid #2d3748;
  padding: 6px 10px;
  display: flex; gap: 10px; align-items: center;
}
.rack-gfx-title       { color: #e2e8f0; font-weight: 700; font-size: 12px; letter-spacing: 0.1em; }
.rack-gfx-sub         { color: #718096; font-size: 10px; }
.rack-gfx-units-badge { margin-left: auto; background: #1f2937; color: #6b7280; font-size: 10px; padding: 2px 6px; border-radius: 4px; font-family: monospace; }
.rack-gfx-body        { display: flex; flex-direction: column; }
.rack-gfx-bottom      { height: 8px; background: linear-gradient(0deg,#1a202c,#0d111a); border-top: 2px solid #2d3748; }

.rack-gfx-slot {
  display: flex; align-items: stretch;
  border-bottom: 1px solid #1a202c;
  cursor: pointer; position: relative;
  transition: filter 0.12s;
}
.rack-gfx-slot:hover    { filter: brightness(1.15); }
.rack-gfx-empty         { background: #060810; }
.rack-gfx-empty:hover   { background: #0c0e18; }

.rack-gfx-u {
  width: 28px; min-width: 28px; font-size: 9px; color: #2d3748; font-family: monospace;
  text-align: center; align-self: stretch; display: flex; align-items: flex-start;
  justify-content: center; padding-top: 5px; background: #040609;
  border-right: 1px solid #1a202c; flex-shrink: 0;
}
.rack-gfx-empty-txt  { flex: 1; text-align: center; font-size: 10px; color: #1a202c; font-family: monospace; letter-spacing: 0.1em; align-self: center; }
.rack-gfx-add-hint   { opacity: 0; font-size: 10px; color: #4299e1; margin-right: 8px; align-self: center; transition: opacity 0.15s; }
.rack-gfx-empty:hover .rack-gfx-add-hint  { opacity: 1; }
.rack-gfx-empty:hover .rack-gfx-empty-txt { color: #2d3748; }

.rack-gfx-face { flex: 1; overflow: hidden; min-width: 0; }
.rack-gfx-screws { width: 10px; min-width: 10px; display: flex; flex-direction: column; align-items: center; justify-content: space-around; padding: 3px 2px; flex-shrink: 0; }
.rack-gfx-screw  { width: 6px; height: 6px; border-radius: 50%; background: #2d3748; box-shadow: inset 1px 1px 0 rgba(255,255,255,0.08); }

/* ═══════════════════════════════════════════════════════════
   HARDWARE FACES — BASE
   ═══════════════════════════════════════════════════════════ */
.hw-face { display: flex; align-items: stretch; width: 100%; overflow: hidden; }
.hw-ports-main {
  flex: 1; display: flex; flex-direction: column; justify-content: center;
  padding: 3px 6px; gap: 2px; overflow: hidden; min-width: 0;
}
.hw-face-labels {
  width: 86px; min-width: 86px; display: flex; flex-direction: column;
  justify-content: center; align-items: flex-end; padding: 3px 6px;
  border-left: 1px solid rgba(255,255,255,0.06); gap: 1px; overflow: hidden; flex-shrink: 0;
}

.hw-pp      { background: #1c2333; }
.hw-sw      { background: #0f1b35; }
.hw-server  { background: #111827; }
.hw-fw      { background: #120404; }
.hw-router  { background: #0a0518; }
.hw-ups     { background: #100c00; }
.hw-pdu     { background: #0a0012; }
.hw-kvm     { background: #00191a; }
.hw-storage { background: #0a0900; }

.hw-lbl-type  { font-size: 7px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.hw-lbl-name  { font-size: 9px; color: #e2e8f0; font-weight: 600; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; max-width: 80px; text-align: right; }
.hw-lbl-model { font-size: 7.5px; color: #4a5568; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 80px; text-align: right; }
.hw-lbl-ip    { font-size: 7px; color: #68d391; font-family: monospace; text-align: right; white-space: nowrap; overflow: hidden; max-width: 80px; }
.hw-lbl-count { font-size: 10px; font-weight: 700; }

/* Patch Panel */
.hw-pp-header { margin-bottom: 1px; }
.hw-pp-row    { display: flex; gap: 2px; align-items: flex-end; flex-wrap: nowrap; overflow: hidden; }
.hw-rj45-wrap { display: flex; flex-direction: column; align-items: center; gap: 1px; flex-shrink: 0; }
.hw-rj45-jack {
  width: 12px; height: 9px; background: #000; border: 1.5px solid #4a5568;
  border-radius: 1px 1px 2px 2px; position: relative; flex-shrink: 0;
}
.hw-rj45-jack::before { content:''; position:absolute; top:1px; left:1.5px; right:1.5px; height:3px; background:#1a202c; }
.hw-rj45-jack::after  { content:''; position:absolute; bottom:1px; left:50%; transform:translateX(-50%); width:6px; height:1px; background:#2d3748; }
.hw-rj45-num  { font-size: 5px; color: #4a5568; font-family: monospace; line-height: 1; }

/* Switch */
.hw-sw-row       { display: flex; gap: 2px; align-items: flex-end; flex-wrap: nowrap; overflow: hidden; }
.hw-sw-gap       { width: 4px; flex-shrink: 0; }
.hw-sw-port-wrap { display: flex; flex-direction: column; align-items: center; gap: 2px; flex-shrink: 0; }
.hw-eth-port     { width: 10px; height: 7px; background: #000; border: 1.5px solid #4a5568; border-radius: 1px; flex-shrink: 0; }
.hw-eth-wan      { border-color: #f6ad55; }
.hw-sfp-wrap     { display: flex; flex-direction: column; align-items: center; gap: 2px; flex-shrink: 0; }
.hw-sfp-port     { width: 13px; height: 7px; background: #000; border: 1.5px solid #4a5568; border-radius: 1px; display: flex; align-items: center; justify-content: center; }
.hw-sfp-label    { font-size: 5px; color: #4a5568; font-weight: 700; }

/* LEDs */
.hw-led        { width: 4px; height: 4px; border-radius: 50%; flex-shrink: 0; }
.hw-led-green  { background: #48bb78; box-shadow: 0 0 3px rgba(72,187,120,0.8); }
.hw-led-amber  { background: #ed8936; box-shadow: 0 0 3px rgba(237,137,54,0.8); }
.hw-led-red    { background: #fc8181; box-shadow: 0 0 3px rgba(252,129,129,0.8); }
.hw-led-off    { background: #2d3748; }

/* Server / Storage */
.hw-server-body    { flex-direction: row !important; align-items: center; gap: 8px; padding: 4px 8px !important; }
.hw-drive-bays     { display: flex; gap: 2px; align-items: center; flex-wrap: wrap; }
.hw-drive-bay {
  width: 18px; height: 12px; background: #111; border: 1px solid #2d3748; border-radius: 2px; position: relative; flex-shrink: 0;
}
.hw-drive-bay::after { content:''; position:absolute; right:2px; top:50%; transform:translateY(-50%); width:2px; height:5px; background:#1a202c; border-radius:1px; }
.hw-drive-bay-storage { width: 16px; height: 14px; background: #0a0800; border-color: #4a5568; }
.hw-server-panel   { display: flex; flex-direction: column; gap: 4px; align-items: center; }
.hw-power-btn {
  width: 9px; height: 9px; border-radius: 50%; background: #1a202c; border: 1.5px solid #48bb78; position: relative; flex-shrink: 0;
}
.hw-power-btn::after { content:''; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:3px; height:3px; border-radius:50%; background:#48bb78; opacity:0.8; }
.hw-usb            { width: 7px; height: 4px; background: #000; border: 1px solid #4a5568; border-radius: 1px; flex-shrink: 0; }
.hw-indicators-col { display: flex; flex-direction: column; gap: 3px; align-items: center; padding: 4px; }
.hw-default-body   { flex-direction: row !important; align-items: center; padding: 4px 8px !important; }
.hw-kvm-ports      { display: flex; gap: 3px; align-items: center; }

/* UPS */
.hw-ups-body    { flex-direction: row !important; align-items: center; gap: 8px; padding: 4px 8px !important; }
.hw-ups-screen  { background: #001400; border: 1px solid #1a3020; border-radius: 2px; padding: 3px 5px; display: flex; flex-direction: column; gap: 2px; min-width: 52px; }
.hw-ups-bar-outer { background: #0a1a0a; border: 1px solid #1a3020; border-radius: 1px; height: 6px; width: 44px; }
.hw-ups-bar-inner { height: 100%; background: #fb923c; border-radius: 1px; }
.hw-ups-pct     { color: #fb923c; font-size: 7px; font-family: monospace; }
.hw-ups-indicators { display: flex; gap: 4px; align-items: center; }

/* PDU */
.hw-pdu-outlet  { display: flex; flex-direction: column; align-items: center; gap: 2px; flex-shrink: 0; }
.hw-outlet-socket {
  width: 11px; height: 11px; background: #000; border: 1.5px solid #4a5568; border-radius: 50%; position: relative;
}
.hw-outlet-socket::before,
.hw-outlet-socket::after  { content:''; position:absolute; background:#000; border:1px solid #2d3748; border-radius:1px; }
.hw-outlet-socket::before { width:2px; height:4px; top:1.5px; left:2.5px; }
.hw-outlet-socket::after  { width:2px; height:4px; top:1.5px; right:2.5px; }

/* Back button */
.btn-back {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 10px;
  transition: background 0.15s, color 0.15s;
}
.btn-back:hover {
  background: var(--surface2);
  color: var(--text1);
}

/* Patch panel single-row layout */
.hw-pp-fullrow {
  flex-direction: row !important;
  align-items: center !important;
  padding: 0 6px !important;
  overflow: hidden !important;
}
.hw-pp-fullrow .hw-pp-row {
  flex: 1;
  min-width: 0;
  justify-content: space-between;
  gap: 1px;
  overflow: hidden;
}
.hw-pp-fullrow .hw-rj45-wrap { flex: 1; max-width: 18px; min-width: 0; }

/* Force label area to always be visible */
.hw-face-labels {
  flex: 0 0 86px !important;
  width: 86px;
  min-width: 86px;
}

/* Switch full-width layout */
.hw-sw-body {
  flex: 1;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  overflow: hidden;
  min-width: 0;
  padding: 2px 4px;
  gap: 4px;
}
.hw-sw-rj45-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  min-width: 0;
}
/* One row of pairs, fills 100% of rj45-area width */
.hw-sw-pairs-row {
  display: flex;
  gap: 2px;
  align-items: flex-start;
  overflow: hidden;
  width: 100%;
}
/* Each pair = column: top port (odd) + bottom port (even) + label */
.hw-sw-pair {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  flex: 1;
  min-width: 0;
}
.hw-sw-jack2 {
  width: 100%;
  height: 11px;
  background: #0a0a0a;
  border: 1.5px solid #2d3748;
  border-radius: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hw-sw-jack2-active { border-color: #3a5a3a; }
.hw-sw-jack2-empty  { opacity: 0; }
.hw-sw-led2 {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  flex-shrink: 0;
}
.hw-sw-num2 {
  font-size: 5px;
  color: #4a5568;
  font-family: monospace;
  line-height: 1;
  margin-top: 1px;
}
/* SFP/fiber uplink column */
.hw-sw-sfp-col {
  flex: 0 0 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border-left: 1px solid rgba(255,165,0,0.2);
  padding: 2px 3px;
}
.hw-sw-sfp-title {
  font-size: 5px;
  color: #f6ad55;
  font-family: monospace;
  letter-spacing: 0.06em;
  margin-bottom: 1px;
}
.hw-sw-sfp-slot {
  width: 18px;
  height: 9px;
  background: #000;
  border: 1.5px solid #4a5568;
  border-radius: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
}