.pcb { max-width: 640px; }
.pcb-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.pcb-tab {
  padding: 8px 12px; font-size: 13px; font-weight: 700; border: 1px solid #d9e0d4; border-radius: 6px;
  background: #fff; cursor: pointer; color: #27331f;
}
.pcb-tab-active { background: #19616a; border-color: #19616a; color: #fff; }
.pcb-panel { display: flex; flex-direction: column; gap: 12px; }
.pcb-panel label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 700; color: #27331f; }
.pcb-panel input, .pcb-panel select { padding: 9px 11px; font-size: 14.5px; border: 1px solid #d9e0d4; border-radius: 6px; }
.pcb-panel input:focus, .pcb-panel select:focus { outline: 2px solid #19616a; outline-offset: 1px; }
.pcb-row { display: flex; gap: 12px; flex-wrap: wrap; }
.pcb-row label { flex: 1; min-width: 120px; }
.pcb-mode { display: flex; flex-wrap: wrap; gap: 6px; }
.pcb-mode button {
  padding: 7px 11px; font-size: 12.5px; font-weight: 700; border: 1px solid #d9e0d4; border-radius: 6px;
  background: #fff; cursor: pointer; color: #27331f;
}
.pcb-mode button.pcb-mode-active { background: #19616a; border-color: #19616a; color: #fff; }
.pcb-out { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.pcb-cmd {
  display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 12px; background: #f3f4f8; border: 1px solid #d9e0d4; border-radius: 6px;
}
.pcb-cmd code { font-family: ui-monospace, monospace; font-size: 13.5px; color: #19616a; font-weight: 700; }
.pcb-cmd span { font-size: 12.5px; color: #5b6b56; }
.pcb-hint { font-size: 12.5px; color: #5b6b56; margin: 4px 0 0; }
.pcb-note { margin-top: 16px; font-size: 13px; color: #5b6b56; }