.rcb2 { max-width: 640px; }
.rcb2-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.rcb2-tab {
  padding: 8px 12px; font-size: 13px; font-weight: 700; border: 1px solid #d9e0d4; border-radius: 6px;
  background: #fff; cursor: pointer; color: #27331f;
}
.rcb2-tab-active { background: #19616a; border-color: #19616a; color: #fff; }
.rcb2-panel { display: flex; flex-direction: column; gap: 12px; }
.rcb2-panel label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 700; color: #27331f; }
.rcb2-panel input, .rcb2-panel select { padding: 9px 11px; font-size: 14.5px; border: 1px solid #d9e0d4; border-radius: 6px; }
.rcb2-panel input:focus, .rcb2-panel select:focus { outline: 2px solid #19616a; outline-offset: 1px; }
.rcb2-row2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.rcb2-row3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.rcb2-row4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.rcb2-check-row { display: flex; flex-wrap: wrap; gap: 14px; }
.rcb2-check {
  flex-direction: row !important; align-items: center; gap: 6px !important; font-weight: 700;
}
.rcb2-check input[type="checkbox"] { width: auto; padding: 0; }
.rcb2-check-inline { justify-content: flex-end; }
.rcb2-ap-piece {
  display: flex; flex-direction: column; gap: 6px; padding: 10px; background: #f3f4f8;
  border: 1px solid #d9e0d4; border-radius: 6px;
}
.rcb2-ap-piece strong { font-size: 12.5px; color: #27331f; }

.rcb2-out { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.rcb2-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;
}
.rcb2-cmd code { font-family: ui-monospace, monospace; font-size: 13.5px; color: #19616a; font-weight: 700; }
.rcb2-cmd span { font-size: 12.5px; color: #5b6b56; }

.rcb2-hint { font-size: 12.5px; color: #5b6b56; margin: 4px 0 0; }
.rcb2-note { margin-top: 16px; font-size: 13px; color: #5b6b56; }

.rcb2-result {
  padding: 12px 14px; background: #f3f4f8; border: 1px solid #d9e0d4; border-radius: 6px;
  display: flex; flex-direction: column; gap: 6px;
}
.rcb2-result-big { font-size: 20px; font-weight: 800; color: #19616a; }
.rcb2-result-row { display: flex; justify-content: space-between; gap: 10px; font-size: 13.5px; color: #27331f; }
.rcb2-result-row span:last-child { font-weight: 700; }

.rcb2-table { border-collapse: collapse; width: 100%; font-size: 13px; }
.rcb2-table th, .rcb2-table td {
  border: 1px solid #d9e0d4; padding: 7px 9px; text-align: left; color: #27331f;
}
.rcb2-table th { background: #f3f4f8; font-weight: 700; }
.rcb2-table tr.rcb2-table-active td { background: #eaf3f2; }

.rcb2-swatch-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.rcb2-swatch {
  width: 64px; height: 64px; border-radius: 8px; border: 1px solid #d9e0d4; flex-shrink: 0;
}
.rcb2-swatch-info { display: flex; flex-direction: column; gap: 4px; }
.rcb2-swatch-hex { font-family: ui-monospace, monospace; font-size: 15px; font-weight: 800; color: #27331f; }
.rcb2-swatch-rgb { font-size: 12.5px; color: #5b6b56; }

.rcb2-color-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.rcb2-color-slot { display: flex; flex-direction: column; gap: 4px; }
.rcb2-color-slot select { padding: 8px 9px; font-size: 13px; }

.rcb2-dye-list { display: flex; flex-direction: column; gap: 8px; }
.rcb2-dye-row { display: flex; align-items: center; gap: 10px; }
.rcb2-dye-row select { flex: 1; }
.rcb2-dye-chip { width: 22px; height: 22px; border-radius: 5px; border: 1px solid #d9e0d4; flex-shrink: 0; }
.rcb2-dye-remove {
  border: 1px solid #d9e0d4; background: #fff; color: #27331f; border-radius: 6px; cursor: pointer;
  padding: 6px 10px; font-size: 13px; font-weight: 700;
}
.rcb2-btn {
  align-self: flex-start; border: 1px solid #19616a; background: #fff; color: #19616a; border-radius: 6px;
  cursor: pointer; padding: 8px 14px; font-size: 13px; font-weight: 700;
}
.rcb2-btn:hover { background: #eaf3f2; }

@media (max-width: 480px) {
  .rcb2-row2, .rcb2-row3, .rcb2-row4 { grid-template-columns: 1fr; }
  .rcb2-color-grid { grid-template-columns: repeat(2, 1fr); }
}