/* Rolling Stock page-specific styles */

.kpi-row-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.table-scroll {
  overflow-x: auto;
}

/* Tab system */
.tab-list {
  display: flex;
  gap: 0.25rem;
  background: var(--bg);
  border-radius: 8px;
  padding: 3px;
}

.tab-btn {
  padding: 0.3rem 0.875rem;
  border-radius: 6px;
  border: none;
  background: none;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.04);
}

.tab-btn.active {
  background: var(--card);
  color: var(--kai-red);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.data-table tr.selected td {
  background: rgba(37, 99, 235, 0.06) !important;
}

/* Status badges in table */
.tbl-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* Detail Panel */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

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

.detail-badge {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--kai-red), #F97316);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.detail-badge::after {
  content: '🚂';
}

.detail-unit-id {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}

.detail-unit-type {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}

.detail-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
}

.spec-row {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.spec-lbl {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}

.spec-val {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}

/* Davis Formula box */
.davis-box {
  background: var(--bg);
  border-radius: 8px;
  padding: 0.875rem;
  border: 1px solid var(--border);
}

.davis-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.625rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.davis-formula {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.davis-values {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.davis-val-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
}

.davis-val-label {
  width: 12px;
  font-weight: 700;
  color: var(--kai-red);
  font-family: 'JetBrains Mono', monospace;
}

.davis-val-eq {
  color: var(--muted);
}

.davis-val-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--text);
}

.davis-val-unit {
  color: var(--muted);
  font-size: 0.6875rem;
}

/* Detail right */
.detail-chart-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.detail-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.d-stat {
  background: var(--bg);
  border-radius: 7px;
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border);
  text-align: center;
}

.d-stat-val {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}

.d-stat-lbl {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-top: 1px;
}