.mas { max-width: 760px; }

.mas-controls {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; margin-bottom: 12px;
  padding: 14px; background: #f3f4f8; border: 1px solid #d9e0d4; border-radius: 8px;
}
.mas-field { display: flex; flex-direction: column; gap: 4px; }
.mas-label { font-size: 12.5px; font-weight: 700; color: #27331f; }

.mas-file-input {
  font-size: 13px; color: #27331f; padding: 6px 0;
}

.mas-select {
  padding: 9px 11px; font-size: 14.5px; border: 1px solid #d9e0d4; border-radius: 6px;
  background: #fff; color: #27331f; min-width: 220px;
}
.mas-select:focus { outline: 2px solid #19616a; outline-offset: 1px; }

.mas-download-btn {
  padding: 9px 16px; font-size: 13.5px; font-weight: 700; border: 1px solid #19616a; border-radius: 6px;
  background: #19616a; color: #fff; cursor: pointer;
}
.mas-download-btn:hover:not(:disabled) { background: #144d54; border-color: #144d54; }
.mas-download-btn:disabled { background: #d9e0d4; border-color: #d9e0d4; color: #5b6b56; cursor: not-allowed; }

.mas-hint { margin: 0 0 16px; font-size: 12.5px; color: #5b6b56; }

.mas-preview-row { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 22px; }
.mas-preview-pane { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.mas-preview-label { font-size: 12.5px; font-weight: 700; color: #27331f; }
.mas-preview-pane canvas {
  border: 1px solid #d9e0d4; border-radius: 6px; background: #fff; max-width: 100%;
  width: 256px; height: 256px; image-rendering: pixelated;
}

.mas-legend-wrap { margin-bottom: 18px; }
.mas-legend-title { margin: 0 0 4px; font-size: 15px; font-weight: 700; color: #27331f; }
.mas-legend-hint { margin: 0 0 12px; font-size: 12.5px; color: #5b6b56; }
.mas-legend { display: flex; flex-direction: column; gap: 6px; }

.mas-legend-row {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px;
  background: #f3f4f8; border: 1px solid #d9e0d4; border-radius: 6px; font-size: 13px; color: #27331f;
}
.mas-legend-swatch {
  width: 20px; height: 20px; border-radius: 4px; border: 1px solid #d9e0d4; flex: 0 0 auto;
}
.mas-legend-name { font-weight: 700; flex: 1 1 auto; }
.mas-legend-count { font-size: 12.5px; color: #5b6b56; white-space: nowrap; }
.mas-legend-pct { font-size: 12.5px; color: #19616a; font-weight: 700; white-space: nowrap; min-width: 44px; text-align: right; }

.mas-note { margin-top: 16px; font-size: 13px; color: #5b6b56; }

@media (max-width: 640px) {
  .mas-controls { flex-direction: column; align-items: stretch; }
  .mas-preview-row { flex-direction: column; }
  .mas-preview-pane canvas { width: 100%; height: auto; aspect-ratio: 1 / 1; }
}