html,
body {
  background-color: var(--color-page-background) !important;
}

.matrix-container {
  width: 100%;
  padding: var(--spacing-xl) 0;
}

.matrix-workspace {
  display: grid;
  width: min(900px, 100%);
  gap: var(--spacing-lg);
  margin: 0 auto;
}

.matrix-preview-section,
.matrix-items-panel {
  min-width: 0;
}

.matrix-preview-heading,
.matrix-items-heading {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 12px;
}

.matrix-kicker {
  color: var(--color-muted-medium);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.matrix-preview-heading p,
.matrix-items-heading p {
  margin: 3px 0 0;
  color: var(--color-muted-light);
  font-size: 13px;
}

.matrix-preview-controls {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}

.matrix-inline-color,
.matrix-check-field {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.matrix-inline-color input[type="color"] {
  width: 42px;
  height: 30px;
  padding: 2px;
  border: var(--border-width) solid var(--color-border-light);
  border-radius: var(--border-radius-sm);
  background: var(--color-white);
  cursor: pointer;
}

.matrix-canvas-frame {
  position: relative;
  overflow: hidden;
  background: transparent;
}

#matrix-canvas {
  display: block;
  width: 100%;
  height: auto;
  background: var(--color-white);
  box-shadow: 0 6px 20px var(--shadow-color-medium);
  touch-action: none;
  cursor: default;
}

#matrix-canvas.is-over-item {
  cursor: grab;
}

#matrix-canvas.is-dragging {
  cursor: grabbing;
}

#matrix-canvas:focus-visible {
  outline: 4px solid var(--color-focus-soft);
  outline-offset: -4px;
}

.matrix-axis-input {
  position: absolute;
  z-index: 2;
  width: 46%;
  padding: 5px 8px;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--color-text);
  background: transparent;
  font-family: var(--font-family-primary);
  font-size: clamp(13px, 2.2vw, 22px);
  font-weight: 700;
  text-align: center;
}

.matrix-title-input {
  position: absolute;
  top: 1.1%;
  left: 18%;
  z-index: 3;
  width: 64%;
  padding: 4px 8px;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--color-text);
  background: transparent;
  font-family: var(--font-family-primary);
  font-size: clamp(16px, 2.8vw, 28px);
  font-weight: 700;
  text-align: center;
}

.matrix-title-input:hover {
  border-bottom-color: rgba(var(--color-primary-rgb), 0.42);
}

.matrix-title-input:focus {
  outline: none;
  border-bottom-color: var(--color-primary);
  background: var(--color-white);
}

.matrix-axis-input:hover {
  border-bottom-color: rgba(var(--color-primary-rgb), 0.42);
}

.matrix-axis-input:focus {
  outline: none;
  border-bottom-color: var(--color-primary);
  background: var(--color-white);
}

.matrix-axis-input--top,
.matrix-axis-input--bottom {
  left: 27%;
}

.matrix-axis-input--top { top: 7%; }
.matrix-axis-input--bottom { bottom: 2.5%; }

.matrix-axis-input--left,
.matrix-axis-input--right {
  top: 47.5%;
  width: 46%;
}

.matrix-axis-input--left {
  left: -17.5%;
  transform: rotate(-90deg);
}

.matrix-axis-input--right {
  right: -17.5%;
  transform: rotate(90deg);
}

.matrix-download-button,
.matrix-primary-button {
  padding: 12px 18px;
  border: 0;
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  background: var(--color-primary);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.matrix-download-button:hover,
.matrix-primary-button:hover {
  background: var(--color-primary-hover);
  filter: brightness(0.94);
}

.matrix-download-button {
  width: 100%;
  margin-top: var(--spacing-md);
  font-size: 16px;
}

.matrix-status {
  min-height: 1.5em;
  margin: 8px 0 0;
  color: var(--color-muted-light);
  font-size: 12px;
  text-align: center;
}

.matrix-items-panel {
  padding: var(--spacing-md);
  border: var(--border-width) solid var(--color-border-light);
  border-radius: var(--border-radius-sm);
  background: var(--color-surface-subtle);
}

.matrix-items-heading {
  align-items: center;
  margin-bottom: 14px;
}

.matrix-items-heading h2 {
  margin: 2px 0 0;
  color: var(--color-text);
  font-size: 20px;
}

.matrix-items-heading p {
  color: var(--color-muted);
}

.matrix-items-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
}

.matrix-items-toolbar {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: var(--border-width) solid var(--color-border-subtle);
}

.matrix-primary-button {
  white-space: nowrap;
}

.matrix-text-button {
  padding: 7px 0;
  border: 0;
  color: var(--color-text);
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
}

.matrix-text-button:disabled {
  color: var(--color-text-subtle);
  cursor: default;
}

.matrix-add-row {
  display: flex;
  width: 100%;
  min-height: 54px;
  gap: 8px;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  padding: 12px 18px;
  border: 1px dashed var(--color-border-light);
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.matrix-add-row span {
  font-size: 20px;
  line-height: 1;
}

.matrix-add-row:hover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.06);
}

.matrix-item-columns,
.matrix-list-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 112px 40px;
  gap: 14px;
  align-items: center;
}

.matrix-item-columns {
  padding: 0 12px 8px;
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 700;
}

.matrix-item-columns span:first-child,
.matrix-item-columns span:nth-child(3) {
  text-align: center;
}

.matrix-item-list {
  display: grid;
  gap: 8px;
  max-height: 430px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
}

.matrix-item-list-empty {
  padding: 28px 12px;
  border: var(--border-width) dashed var(--color-border-light);
  color: var(--color-muted);
  font-size: 13px;
  text-align: center;
}

.matrix-list-item {
  min-height: 72px;
  padding: 8px 12px;
  border: var(--border-width) solid var(--color-border-subtle);
  border-radius: var(--border-radius-sm);
  background: var(--color-white);
  transition: border-color var(--transition-fast);
}

.matrix-list-item.is-selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.13);
}

.matrix-thumbnail-cell,
.matrix-color-cell {
  display: grid;
  place-items: center;
}

.matrix-thumbnail-cell {
  position: relative;
}

.matrix-thumbnail-control {
  position: relative;
  display: grid;
  width: 54px;
  height: 54px;
  padding: 0;
  place-items: center;
  border: 1px dashed var(--color-border-light);
  border-radius: 50%;
  color: var(--color-text);
  background: var(--color-surface-muted);
  cursor: pointer;
}

.matrix-thumbnail-control:hover {
  border-color: var(--color-primary);
}

.matrix-thumbnail-control.has-image {
  overflow: hidden;
  border-style: solid;
  border-color: var(--color-border-light);
}

.matrix-thumbnail-control img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.matrix-thumbnail-plus {
  font-size: 24px;
  font-weight: 500;
  line-height: 1;
}

.matrix-row-file {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.matrix-thumbnail-remove {
  position: absolute;
  top: -5px;
  right: -5px;
  z-index: 2;
  display: grid;
  width: 20px;
  height: 20px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--color-border-light);
  border-radius: 50%;
  color: var(--color-muted);
  background: var(--color-white);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
}

.matrix-row-name {
  min-width: 0;
  width: 100%;
  padding: 10px 11px;
  border: var(--border-width) solid var(--color-border-light);
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  background: var(--color-white);
  font: inherit;
}

.matrix-row-name:focus {
  outline: 3px solid var(--color-focus-soft-shadow);
  border-color: var(--color-focus);
}

.matrix-row-color {
  width: 54px;
  height: 38px;
  padding: 2px;
  border: var(--border-width) solid var(--color-border-light);
  border-radius: var(--border-radius-sm);
  background: var(--color-white);
  cursor: pointer;
}

.matrix-list-delete {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--color-muted);
  background: transparent;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.matrix-list-delete:hover {
  color: var(--color-danger);
  background: var(--color-danger-soft);
}

.matrix-crop-dialog {
  width: min(520px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  margin: auto;
  padding: var(--spacing-md);
  overflow-y: auto;
  border: 0;
  border-radius: var(--border-radius-xl);
  color: var(--color-text);
  background: var(--color-surface-subtle);
  box-shadow: 0 18px 50px var(--shadow-color-strong);
}

.matrix-crop-dialog::backdrop {
  background: var(--shadow-color-strong);
}

.matrix-crop-header {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  justify-content: space-between;
}

.matrix-crop-header h2 {
  margin: 3px 0 0;
  font-size: 20px;
}

.matrix-crop-close {
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--color-muted);
  background: var(--color-surface-light);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.matrix-crop-help {
  margin: 8px 0 14px;
  color: var(--color-muted);
  font-size: 13px;
}

.matrix-crop-stage {
  display: grid;
  padding: 16px;
  place-items: center;
  border-radius: var(--border-radius-sm);
  background: var(--color-surface-dark);
}

#crop-canvas {
  display: block;
  width: min(360px, 100%);
  height: auto;
  border-radius: var(--border-radius-sm);
  touch-action: none;
  cursor: grab;
}

#crop-canvas.is-dragging {
  cursor: grabbing;
}

.matrix-crop-zoom {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin: var(--spacing-md) 0;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.matrix-crop-zoom input {
  width: 100%;
  accent-color: var(--color-primary);
}

.matrix-crop-actions {
  display: flex;
  gap: 9px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.matrix-secondary-action {
  display: inline-flex;
  min-height: 40px;
  padding: 8px 12px;
  align-items: center;
  justify-content: center;
  border: var(--border-width) solid var(--color-border-light);
  border-radius: var(--border-radius-sm);
  color: var(--color-muted);
  background: var(--color-white);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.matrix-crop-file {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

/* ========================================
   横二段レイアウト（項目カラムは固定240px）
   幅の広い画面のみ。1項目はサムネイル・名前・色を横一列に並べた
   行として表示し、行高もつめて一覧の表示件数を稼ぐ。
   ======================================== */
@media (min-width: 900px) {
  .matrix-workspace {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: var(--spacing-sm);
  }

  .matrix-items-panel {
    display: flex;
    flex-direction: column;
    padding: 16px 10px 14px;
  }

  .matrix-items-heading {
    margin-bottom: 18px;
  }

  .matrix-items-heading h2 {
    margin-top: 5px;
    font-size: 17px;
  }

  .matrix-items-heading p {
    margin-top: 7px;
    line-height: 1.75;
  }

  .matrix-items-toolbar {
    gap: 12px;
  }

  .matrix-preview-controls {
    gap: 14px 16px;
  }

  /* 列見出しは折り返して読みづらいため隠す（各セルは形で判別できる） */
  .matrix-item-columns {
    display: none;
  }

  .matrix-item-list {
    /* プレビュー列より高くならないよう一覧側で上限を持たせる */
    max-height: 420px;
    gap: 6px;
    align-content: start;
    grid-auto-rows: max-content;
    scrollbar-width: thin;
    scrollbar-color: var(--color-text-subtle) transparent;
  }

  .matrix-item-list::-webkit-scrollbar {
    width: 6px;
  }

  .matrix-item-list::-webkit-scrollbar-track {
    background: transparent;
  }

  .matrix-item-list::-webkit-scrollbar-thumb {
    background: var(--color-text-subtle);
    border-radius: var(--border-radius-xs);
  }

  .matrix-list-item {
    grid-template-columns: 40px minmax(0, 1fr) 34px 24px;
    gap: 6px;
    min-height: 0;
    padding: 6px 8px;
  }

  .matrix-thumbnail-control {
    width: 38px;
    height: 38px;
  }

  .matrix-thumbnail-plus {
    font-size: 19px;
  }

  .matrix-thumbnail-remove {
    top: -4px;
    right: -4px;
    width: 17px;
    height: 17px;
    font-size: 12px;
  }

  .matrix-row-name {
    padding: 6px 7px;
    font-size: 13px;
  }

  .matrix-row-color {
    width: 100%;
    height: 28px;
  }

  .matrix-list-delete {
    width: 24px;
    height: 24px;
    font-size: 17px;
  }
}

@media (max-width: 680px) {
  .matrix-container { padding-top: var(--spacing-md); }

  .matrix-preview-heading,
  .matrix-items-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .matrix-items-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .matrix-preview-controls {
    width: 100%;
    justify-content: space-between;
  }

  .matrix-item-columns {
    display: none;
  }

  .matrix-list-item {
    grid-template-columns: 60px minmax(0, 1fr) 54px 32px;
    gap: 8px;
    padding: 8px;
  }

  .matrix-items-panel {
    padding: 14px 10px;
  }
}

@media (max-width: 430px) {
  .matrix-list-item {
    grid-template-columns: 52px minmax(0, 1fr) 46px 28px;
    gap: 5px;
  }

  .matrix-thumbnail-control {
    width: 46px;
    height: 46px;
  }

  .matrix-row-color {
    width: 42px;
  }

  .matrix-row-name {
    padding: 9px 8px;
  }

  .matrix-crop-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .matrix-crop-actions .matrix-primary-button {
    grid-column: 1 / -1;
  }
}