/* 시트 로직 — 위 가로 다이어그램 */
.m01-sldg {
  --sldg-in: var(--color-accent);
  --sldg-out: #c2610c;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  min-width: 0;
  font-size: var(--text-body-sm);
  outline: none;
}

:root[data-theme="dark"] .m01-sldg {
  --sldg-out: #e5a866;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .m01-sldg {
    --sldg-out: #e5a866;
  }
}

.m01-sldg__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-8);
  min-height: 2rem;
}

.m01-sldg__note {
  color: var(--color-danger);
}

.m01-sldg__muted {
  margin: 0;
  color: var(--color-text-muted);
}

.m01-sldg__menu {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.m01-sldg__menu[hidden] {
  display: none;
}

/* 띠 — 화면 위 3분의 1 안쪽 · 길면 가로로 밀기 */
.m01-sldg__band {
  max-height: 33vh;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-accent) 5%, var(--color-canvas));
}

.m01-sldg__inner {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(11rem, 1fr));
  gap: var(--spacing-24);
  min-width: max-content;
  padding: var(--spacing-12) var(--spacing-16);
}

.m01-sldg__lines {
  position: absolute;
  inset: 0 auto auto 0;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}

.m01-sldg__col {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  min-width: 11rem;
}

.m01-sldg__col-head {
  color: var(--color-text-muted);
  font-size: var(--text-caption);
  letter-spacing: 0.04em;
}

/* 상자 */
.m01-sldg__box {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  padding: var(--spacing-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  cursor: pointer;
}

.m01-sldg__box:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.m01-sldg__box.is-selected {
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 18%, transparent);
}

.m01-sldg__box-head {
  display: flex;
  flex-direction: column;
}

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

.m01-sldg__name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m01-sldg__pills {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-8);
}

.m01-sldg__ins,
.m01-sldg__outs {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  min-width: 0;
}

.m01-sldg__outs {
  align-items: flex-end;
}

/* 알약 — 입력 파랑 · 출력 주황 · 빈 자리 회색 */
.m01-sldg__pill {
  display: inline-flex;
  align-items: baseline;
  gap: var(--spacing-4);
  max-width: 10rem;
  padding: 0 var(--spacing-8);
  border: 1px solid var(--sldg-in);
  border-radius: 999px;
  background: color-mix(in srgb, var(--sldg-in) 12%, var(--color-surface));
  color: var(--sldg-in);
  font: inherit;
  font-size: var(--text-caption);
  cursor: pointer;
  white-space: nowrap;
}

.m01-sldg__pill.is-out {
  border-color: var(--sldg-out);
  background: color-mix(in srgb, var(--sldg-out) 14%, var(--color-surface));
  color: var(--sldg-out);
  cursor: grab;
  touch-action: none;
}

.m01-sldg__pill.is-empty {
  border-style: dashed;
  border-color: var(--color-text-muted);
  background: transparent;
  color: var(--color-text-muted);
}

.m01-sldg__pill.is-chosen {
  box-shadow: 0 0 0 2px currentColor;
}

.m01-sldg.is-linking .m01-sldg__pill.is-target {
  box-shadow: 0 0 0 2px var(--sldg-in);
  animation: m01-sldg-blink 1s ease-in-out infinite alternate;
}

@keyframes m01-sldg-blink {
  to {
    background: color-mix(in srgb, var(--sldg-in) 30%, var(--color-surface));
  }
}

.m01-sldg__pill-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.m01-sldg__pill-value {
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.m01-sldg__pill-value:empty {
  display: none;
}

/* 선 */
.m01-sldg__edge {
  pointer-events: auto;
  cursor: pointer;
}

.m01-sldg__hit {
  fill: none;
  stroke: transparent;
  stroke-width: 12;
}

.m01-sldg__wire {
  fill: none;
  stroke: var(--color-text-muted);
  stroke-width: 1.5;
}

.m01-sldg__edge.is-strong .m01-sldg__wire {
  stroke: var(--color-accent);
  stroke-width: 3;
}

.m01-sldg__edge.is-dim .m01-sldg__wire {
  opacity: 0.3;
}

.m01-sldg__drag {
  fill: none;
  stroke: var(--sldg-out);
  stroke-width: 2;
  stroke-dasharray: 5 4;
}

@media (prefers-reduced-motion: reduce) {
  .m01-sldg.is-linking .m01-sldg__pill.is-target {
    animation: none;
  }
}