/* M01 마스터 요소 — 좌측 도킹 패널(그룹 탭 · 파일) / 우측 표 */
.m01-master [hidden] {
  display: none !important;
}

.m01-master__side {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  padding-top: var(--spacing-8);
}

.m01-master__tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-4);
}

.m01-master__files {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.m01-master__tab,
.m01-master__file {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-8);
  padding: var(--spacing-4) var(--spacing-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-buttons);
  background: var(--color-surface);
  color: var(--color-text-body);
  font: inherit;
  font-size: var(--text-body-sm);
  text-align: left;
  cursor: pointer;
}

.m01-master__file {
  border-color: transparent;
  background: transparent;
}

.m01-master__tab:hover,
.m01-master__file:hover {
  background: var(--color-paper);
}

.m01-master__tab.is-active,
.m01-master__file.is-active {
  background: var(--color-mist-violet);
  color: var(--color-accent);
}

.m01-master__muted {
  color: var(--color-text-muted);
  font-size: var(--text-caption);
}

/* ── 우측 ── */
.m01-master__panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  min-width: 0;
  padding: var(--spacing-16) var(--spacing-24);
}

.m01-master__head,
.m01-master__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-12);
}

.m01-master__title {
  flex: 1 1 auto;
  margin: 0;
  color: var(--color-text);
  font-size: var(--text-body);
}

.m01-master__summary {
  color: var(--color-accent);
  font-size: var(--text-body-sm);
  font-weight: var(--font-weight-bold);
}

.m01-master__notice {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  padding: var(--spacing-8) var(--spacing-12);
  max-height: 30vh;
  overflow: auto;
  border-left: 4px solid var(--color-danger);
  background: color-mix(in srgb, var(--color-danger) 10%, var(--color-canvas));
  color: var(--color-danger);
  font-size: var(--text-body-sm);
}

.m01-master__notice p {
  margin: 0;
}

.m01-master__body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  min-width: 0;
}

.m01-master__grid-wrap {
  max-height: calc(100vh - 300px);
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-cards);
}

.m01-master__grid {
  border-collapse: collapse;
  font-size: var(--text-body-sm);
}

.m01-master__grid th,
.m01-master__grid td {
  max-width: 320px;
  padding: var(--spacing-8) var(--spacing-12);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m01-master__grid th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.m01-master__grid td.is-editable {
  cursor: text;
}

/* 고친 칸 — 노랑 */
.m01-master__grid td.is-changed {
  background: color-mix(in srgb, var(--color-warning) 28%, var(--color-canvas));
}

.m01-master__grid tr.is-deleted td {
  color: var(--color-text-muted);
  text-decoration: line-through;
  background: color-mix(in srgb, var(--color-danger) 8%, var(--color-canvas));
}

.m01-master__cell-input {
  width: 100%;
  min-width: 6em;
  padding: 2px var(--spacing-4);
}

.m01-master__row-btn {
  padding: 2px var(--spacing-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-buttons);
  background: var(--color-surface);
  color: var(--color-text-body);
  font: inherit;
  font-size: var(--text-caption);
  cursor: pointer;
}

.m01-master__pager {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
  margin-left: auto;
  color: var(--color-text-secondary);
  font-size: var(--text-body-sm);
}

.m01-master__tables {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-8);
}

.m01-master__table-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--spacing-8) var(--spacing-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-cards);
  background: var(--color-surface);
  color: var(--color-text-body);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.m01-master__table-card:hover {
  background: var(--color-paper);
}

.m01-master__table-card.is-changed {
  background: color-mix(in srgb, var(--color-warning) 28%, var(--color-canvas));
}

.m01-master__empty {
  color: var(--color-text-muted);
}