@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@300;400;500;600;700&family=Fira+Code:wght@300;400;500&display=swap');

/* ─── Variables ─────────────────────────────────────────────────────── */
:root {
  --bg:          #060a12;
  --surface:     #0c1220;
  --surface2:    #111c30;
  --surface3:    #162038;
  --border:      #1e2e48;
  --border2:     #2a3f60;
  --accent:      #e8971e;
  --accent-dim:  rgba(232, 151, 30, 0.12);
  --accent-glow: rgba(232, 151, 30, 0.35);
  --green:       #2dd4a0;
  --green-dim:   rgba(45, 212, 160, 0.12);
  --red:         #f16a6a;
  --red-dim:     rgba(241, 106, 106, 0.12);
  --blue:        #5b9cf6;
  --text:        #c4d4ec;
  --text2:       #8a9bbf;
  --text3:       #4a5a78;
  --sidebar-w:   230px;
  --header-h:    52px;
  --font-ui:     'Rajdhani', sans-serif;
  --font-data:   'Fira Code', monospace;
}

/* ─── Reset ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  /* dot grid background */
  background-image: radial-gradient(circle, rgba(90,140,220,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
}

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

/* ─── Scrollbar ──────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ─── Layout ─────────────────────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--header-h) 1fr;
  height: 100vh;
  overflow: hidden;
}

/* ─── Header ─────────────────────────────────────────────────────────── */
.header {
  grid-column: 1 / -1;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  position: relative;
  z-index: 10;
}

.header-logo {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo::before {
  content: '';
  display: block;
  width: 8px; height: 8px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  animation: spin 8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.header-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}

.header-spacer { flex: 1; }

.header-user {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 12px;
}

.role-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1px solid var(--border2);
  color: var(--text2);
}

.role-badge.admin { border-color: var(--accent); color: var(--accent); }
.role-badge.editor { border-color: var(--blue); color: var(--blue); }

.btn-logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* ─── Sidebar ─────────────────────────────────────────────────────────── */
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-section {
  padding: 6px 20px 4px;
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text3);
  margin-top: 12px;
}
.sidebar-section:first-child { margin-top: 0; }

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text2);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.sidebar-link:hover { color: var(--text); background: var(--surface2); text-decoration: none; }
.sidebar-link.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}

.sidebar-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  flex-shrink: 0;
}
.sidebar-link.active .sidebar-icon { opacity: 1; }

/* ─── Main Content ───────────────────────────────────────────────────── */
.main {
  overflow-y: auto;
  padding: 28px 32px;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Page Header ─────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.page-count {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text3);
}

.page-actions { margin-left: auto; display: flex; gap: 10px; }

/* ─── Toolbar ─────────────────────────────────────────────────────────── */
.toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0 12px;
  gap: 8px;
  flex: 1;
  max-width: 360px;
  transition: border-color 0.15s;
}
.search-box:focus-within { border-color: var(--accent); }

.search-box input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-data);
  font-size: 13px;
  padding: 8px 0;
  width: 100%;
}
.search-box input::placeholder { color: var(--text3); }

.search-icon { color: var(--text3); font-size: 14px; }

.filter-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s;
}
.filter-select:focus { border-color: var(--accent); }
.filter-select option { background: var(--surface2); }

/* ─── Table ───────────────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text3);
  text-align: left;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background 0.1s;
  cursor: pointer;
}
.data-table tbody tr:hover { background: var(--surface2); }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table .mono {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--blue);
}

.data-table .dim { color: var(--text2); }

.table-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}

/* ─── Status Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
}
.badge::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--badge-dot, currentColor);
}
.badge.active { color: var(--green); background: var(--green-dim); }
.badge.active::before { background: var(--green); }
.badge.inactive { color: var(--text3); background: var(--surface2); }
.badge.inactive::before { background: var(--text3); }
.badge.pending { color: var(--accent); background: var(--accent-dim); }
.badge.pending::before { background: var(--accent); }

/* ─── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 18px;
  border: 1px solid;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0d13;
}
.btn-primary:hover { background: #f5ab35; border-color: #f5ab35; }

.btn-secondary {
  background: transparent;
  border-color: var(--border2);
  color: var(--text2);
}
.btn-secondary:hover { border-color: var(--text2); color: var(--text); }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text2);
  padding: 6px 10px;
}
.btn-ghost:hover { color: var(--accent); }

/* ─── Cards ──────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
}

.card-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 8px;
}

.card-value {
  font-family: var(--font-data);
  font-size: 28px;
  font-weight: 400;
  color: var(--text);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.stat-grid .card { border: none; }

/* ─── BOM Tree ───────────────────────────────────────────────────────── */
.bom-tree {
  font-size: 14px;
}

.bom-node {
  border-left: 1px solid var(--border);
  margin-left: 12px;
  padding-left: 0;
}
.bom-node:first-child { border-left: none; margin-left: 0; }

.bom-node-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.1s, border-color 0.1s;
  position: relative;
}
.bom-node-header::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--border);
}
.bom-node:first-child > .bom-node-header::before { display: none; }

.bom-node-header:hover { background: var(--surface2); border-color: var(--border); }
.bom-node-header.expanded { background: var(--accent-dim); border-color: var(--accent); }

.bom-toggle {
  width: 16px; height: 16px;
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text3);
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s;
}
.bom-node-header:hover .bom-toggle,
.bom-node-header.expanded .bom-toggle {
  border-color: var(--accent);
  color: var(--accent);
}

.bom-pn {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--blue);
  min-width: 120px;
}

.bom-desig {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  min-width: 80px;
}

.bom-meta {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text3);
  display: flex;
  gap: 16px;
}
.bom-part-name {
  font-size: 13px;
  color: var(--text1);
  margin-left: 8px;
}
.bom-part-mpn {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--blue);
  margin-left: 4px;
}
.bom-part-desc {
  font-size: 11px;
  color: var(--text3);
  margin-left: 4px;
  font-style: italic;
}
.bom-alt-label {
  font-family: var(--font-data);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  align-self: center;
  margin-right: 4px;
}
.bom-table-row:hover td { background: var(--surface2); }
.bom-table-row.row-active td,
.part-row.row-active td { background: var(--accent-dim); border-bottom-color: var(--accent); }
.btn-group { display: flex; gap: 4px; }

.bom-children {
  padding-left: 28px;
  border-left: 1px solid var(--border);
  margin-left: 20px;
  display: none;
}
.bom-children.open { display: block; }

.bom-parts {
  padding: 6px 12px 6px 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bom-part-chip {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text2);
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 3px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.bom-part-chip .chip-pn { color: var(--text3); font-size: 10px; }
.bom-part-chip.primary { border-color: var(--green); }
.bom-part-chip.primary .chip-dot { color: var(--green); }
.bom-part-chip.alternate .chip-dot { color: var(--text3); }

/* ─── Empty state ─────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text3);
  font-family: var(--font-data);
  font-size: 13px;
}
.empty-state-icon { font-size: 32px; margin-bottom: 12px; opacity: 0.3; }

/* ─── Loading ─────────────────────────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  gap: 12px;
  color: var(--text3);
  font-family: var(--font-data);
  font-size: 13px;
}

.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rotate 0.7s linear infinite;
}
@keyframes rotate { to { transform: rotate(360deg); } }

/* ─── Error / Toast ───────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-left: 3px solid var(--red);
  padding: 12px 20px;
  font-size: 13px;
  z-index: 1000;
  animation: slideIn 0.2s ease;
  max-width: 380px;
}
.toast.success { border-left-color: var(--green); }
@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ─── Login Page ─────────────────────────────────────────────────────── */
.login-page {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 380px;
  background: var(--surface);
  border: 1px solid var(--border2);
  padding: 40px;
  position: relative;
}
.login-card::before {
  content: '';
  position: absolute;
  top: -1px; left: 30px; right: 30px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.login-logo {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.login-logo::before {
  content: '◆';
  font-size: 8px;
  animation: spin 6s linear infinite;
  display: inline-block;
}

.login-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 32px;
}

.form-field {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-data);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: var(--text3); }

.login-error {
  background: var(--red-dim);
  border: 1px solid var(--red);
  color: var(--red);
  font-family: var(--font-data);
  font-size: 12px;
  padding: 8px 12px;
  margin-bottom: 16px;
  display: none;
}

.btn-login {
  width: 100%;
  background: var(--accent);
  border: none;
  color: var(--bg);
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 12px;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 8px;
}
.btn-login:hover { background: #f5ab35; }
.btn-login:disabled { background: var(--border2); color: var(--text3); cursor: not-allowed; }

/* ─── Breadcrumb ─────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text2); }
.breadcrumb a:hover { color: var(--accent); text-decoration: none; }
.breadcrumb-sep { color: var(--border2); }

/* ─── Debug table list ───────────────────────────────────────────────── */
.debug-table-link {
  padding: 8px 14px;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--text2);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}
.debug-table-link:hover { background: var(--surface2); color: var(--text); }
.debug-table-link.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}

/* ─── PPN typeahead dropdown ─────────────────────────────────────────── */
.pn-dropdown {
  position: absolute;
  left: 0; right: 0;
  background: var(--surface2);
  border: 1px solid var(--border2);
  z-index: 100;
  max-height: 260px;
  overflow-y: auto;
}
.pn-option {
  padding: 9px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}
.pn-option:last-child { border-bottom: none; }
.pn-option:hover { background: var(--surface3); }

/* ─── Debug table scroll wrapper ────────────────────────────────────── */
.debug-scroll {
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  overflow-x: auto;
}
.debug-scroll .data-table th {
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
  box-shadow: 0 1px 0 var(--border);
}

/* ─── Debug expandable rows ──────────────────────────────────────────── */
tr.expandable-row { cursor: pointer; }
tr.row-expanded > td { background: var(--accent-dim); border-bottom: none; }

tr.expand-row > td {
  padding: 0;
  background: var(--surface2);
  border-bottom: 2px solid var(--accent);
}

.expand-panel {
  padding: 14px 20px 16px 32px;
}

.expand-title {
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.expand-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 6px 16px;
  align-items: baseline;
}

.expand-label {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text3);
  letter-spacing: 0.06em;
}

.expand-val {
  font-size: 13px;
  color: var(--text);
}

/* ─── Detail Panel ───────────────────────────────────────────────────── */
.detail-row {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  gap: 16px;
}
.detail-row:last-child { border-bottom: none; }
.detail-label {
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text3);
  min-width: 140px;
  padding-top: 2px;
}
.detail-value {
  color: var(--text);
  font-size: 14px;
}
.detail-value.mono {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--blue);
}

/* ─── Part assignment panel ─────────────────────────────────────────── */
.assign-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 200;
  cursor: pointer;
}
.assign-panel {
  position: fixed;
  top: 0; right: 0;
  width: 400px;
  max-width: 100vw;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 201;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.assign-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}
.assign-panel-title { font-weight: 600; font-size: 15px; color: var(--text1); }
.assign-panel-ppn   { font-family: var(--font-data); font-size: 12px; color: var(--accent); margin-top: 3px; }
.assign-close {
  background: none; border: none; color: var(--text3);
  font-size: 16px; cursor: pointer; padding: 2px 6px;
  border-radius: 3px; line-height: 1;
}
.assign-close:hover { color: var(--text1); background: var(--surface2); }
.assign-section { padding: 16px 20px; }
.panel-section-label {
  padding: 8px 20px 4px;
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border-top: 1px solid var(--border);
  margin-top: 4px;
}
.assign-divider {
  display: flex; align-items: center; gap: 10px;
  padding: 0 20px; color: var(--text3); font-size: 12px;
}
.assign-divider::before, .assign-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.assign-result {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 4px; margin-bottom: 6px; cursor: default;
  transition: border-color 0.1s, background 0.1s;
}
.assign-result:hover { border-color: var(--accent); background: var(--surface2); }
.assign-result-info { flex: 1; min-width: 0; }
.assign-result-name { font-weight: 500; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.assign-result-sub  { font-family: var(--font-data); font-size: 11px; color: var(--text3); margin-top: 2px; }
.assign-result-btns { display: flex; gap: 4px; flex-shrink: 0; margin-left: 10px; }
.assign-result-btns .btn { font-size: 11px; padding: 3px 8px; }
.assign-empty { color: var(--text3); font-size: 13px; padding: 8px 0; text-align: center; }
.btn-row-menu {
  background: none; border: 1px solid var(--border); color: var(--text3);
  width: 24px; height: 24px; cursor: pointer;
  font-size: 14px; padding: 0; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: border-color 0.1s, color 0.1s;
  flex-shrink: 0;
}
.btn-row-menu:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Floating row context menu ─────────────────────────────────────── */
.row-menu {
  position: fixed;
  background: var(--surface2);
  border: 1px solid var(--border2);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  z-index: 300;
  min-width: 180px;
  padding: 4px 0;
}

.row-menu-item {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-align: left;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
}
.row-menu-item:hover { background: var(--surface3); color: var(--accent); }
.row-menu-item.rm-danger { color: var(--red); }
.row-menu-item.rm-danger:hover { background: var(--red-dim); color: var(--red); }

.row-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ─── BOM expand arrow ───────────────────────────────────────────── */
.bom-expand-arrow {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 0;
  width: 18px;
  height: 18px;
  font-size: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 2px;
  transition: color 0.1s;
  vertical-align: middle;
  flex-shrink: 0;
}
.bom-expand-arrow:hover { color: var(--accent); }

/* ─── BOM inline detail row ──────────────────────────────────────── */
.bom-detail-tr td {
  padding: 0 !important;
  background: var(--surface) !important;
  border-bottom: 2px solid var(--border2) !important;
}
.bom-detail-content {
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bom-detail-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.bom-detail-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bom-detail-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 5px;
}
.bom-detail-section-title {
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.bom-detail-field {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-height: 22px;
  padding: 1px 0;
}
.bom-detail-label {
  font-family: var(--font-data);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-width: 88px;
  flex-shrink: 0;
  padding-top: 2px;
}
.bom-detail-val {
  font-size: 13px;
  color: var(--text);
}
.bom-detail-val.mono {
  font-family: var(--font-data);
  color: var(--blue);
  font-size: 12px;
}
.bom-detail-alternates {
  border-top: 1px solid var(--border);
  padding-top: 10px;
}
.bom-detail-part-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 13px;
}
.bom-detail-part-star {
  font-size: 12px;
  color: var(--text3);
  width: 14px;
  flex-shrink: 0;
}
.bom-detail-part-primary .bom-detail-part-star { color: var(--accent); }

/* ─── Small button variant ───────────────────────────────────────── */
.btn.btn-sm {
  font-size: 11px;
  padding: 2px 10px;
  height: 24px;
}