/* 단가산출 다이어그램 — 자유 배치 */
.m02-dfdg {
  --cfdg-in: var(--color-accent);
  --cfdg-out: #c2610c;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  min-width: 0;
  font-size: var(--text-body-sm);
}

:root[data-theme="dark"] .m02-dfdg {
  --cfdg-out: #e5a866;
  --cfdg-lift: #fff;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .m02-dfdg {
    --cfdg-out: #e5a866;
    --cfdg-lift: #fff;
  }
}

.m02-dfdg__bar,
.m02-dfdg__tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-8);
}

.m02-dfdg__tools {
  min-height: 1.75rem;
}

.m02-dfdg__title {
  font-size: var(--text-body);
}

.m02-dfdg__gap {
  flex: 1;
}

.m02-dfdg__zoom {
  min-width: 3rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--color-text-secondary);
}

.m02-dfdg__note {
  color: var(--color-danger);
}

.m02-dfdg__hint {
  margin: 0;
  color: var(--color-text-muted);
}

/* 판 — 화면 위쪽 큰 영역 */
.m02-dfdg__view {
  position: relative;
  height: max(360px, 55vh);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-canvas);
  background-image: radial-gradient(
    color-mix(in srgb, var(--color-text-muted) 35%, transparent) 1px,
    transparent 1px
  );
  background-size: 20px 20px;
  cursor: default;
  touch-action: none;
  /* 왼쪽 끌기로 글자가 잡히지 않게 */
  user-select: none;
  -webkit-user-select: none;
}

.m02-dfdg__view.is-panning {
  cursor: grabbing;
}

.m02-dfdg__world {
  position: absolute;
  inset: 0 auto auto 0;
  width: 1px;
  height: 1px;
  transform-origin: 0 0;
}

.m02-dfdg__lines {
  position: absolute;
  inset: 0 auto auto 0;
  width: 1px;
  height: 1px;
  overflow: visible;
  pointer-events: none;
}

/* 상자 — 종류별 기본 색 · 상자마다 바꾼 색(--cf-color) */
.m02-dfdg__box {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  min-width: 11rem;
  max-width: 16rem;
  padding: 0 0 var(--spacing-8);
  border: 1px solid color-mix(in srgb, var(--cf-color) 55%, var(--color-border));
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 1px 3px rgb(0 0 0 / 12%);
  cursor: pointer;
}

.m02-dfdg__box:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.m02-dfdg__box.is-selected {
  border: 2px solid var(--cf-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cf-color) 22%, transparent);
}

.m02-dfdg__head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 0 var(--spacing-8);
  padding: var(--spacing-4) var(--spacing-8);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: color-mix(in srgb, var(--cf-color) 16%, var(--color-surface));
  cursor: move;
}

.m02-dfdg__kind {
  grid-column: 1;
  /* 어두운 화면은 종류 색을 밝게 섞음 */
  color: color-mix(in srgb, var(--cf-color) 55%, var(--cfdg-lift, var(--cf-color)));
  font-size: var(--text-caption);
  font-weight: 600;
}

.m02-dfdg__unit {
  grid-column: 2;
  grid-row: 1;
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
}

.m02-dfdg__name {
  grid-column: 1 / -1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m02-dfdg__pills {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-8);
  padding: 0 var(--spacing-8);
}

.m02-dfdg__ins,
.m02-dfdg__outs {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  min-width: 0;
}

.m02-dfdg__outs {
  align-items: flex-end;
}

/* 알약 — 받는 파랑 · 내보내는 주황 · 빈 자리 회색 */
.m02-dfdg__pill {
  display: inline-flex;
  align-items: baseline;
  gap: var(--spacing-4);
  max-width: 9rem;
  padding: 0 var(--spacing-8);
  border: 1px solid var(--cfdg-in);
  border-radius: 999px;
  background: color-mix(in srgb, var(--cfdg-in) 12%, var(--color-surface));
  color: var(--cfdg-in);
  font: inherit;
  font-size: var(--text-caption);
  cursor: pointer;
  white-space: nowrap;
}

.m02-dfdg__pill.is-out {
  border-color: var(--cfdg-out);
  background: color-mix(in srgb, var(--cfdg-out) 14%, var(--color-surface));
  color: var(--cfdg-out);
  cursor: grab;
  touch-action: none;
}

.m02-dfdg__pill.is-empty {
  border-style: dashed;
  border-color: var(--color-text-muted);
  background: transparent;
  color: var(--color-text-muted);
}

.m02-dfdg__pill.is-chosen {
  box-shadow: 0 0 0 2px currentColor;
}

.m02-dfdg.is-linking .m02-dfdg__pill.is-target {
  box-shadow: 0 0 0 2px var(--cfdg-in);
}

.m02-dfdg__pill-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.m02-dfdg__pill-value {
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.m02-dfdg__pill-value:empty {
  display: none;
}

/* 선 — 굽은 선 */
.m02-dfdg__link {
  pointer-events: auto;
  cursor: pointer;
}

.m02-dfdg__hit {
  fill: none;
  stroke: transparent;
  stroke-width: 12;
}

.m02-dfdg__wire {
  fill: none;
  stroke: var(--color-text-muted);
  stroke-width: 1.5;
}

.m02-dfdg__link.is-strong .m02-dfdg__wire {
  stroke: var(--color-accent);
  stroke-width: 3;
}

.m02-dfdg__link.is-dim .m02-dfdg__wire {
  opacity: 0.25;
}

.m02-dfdg__drag {
  fill: none;
  stroke: var(--cfdg-out);
  stroke-width: 2;
  stroke-dasharray: 5 4;
}

/* 함수 상자 흐린 「+」 받는 자리 */
.m02-dfdg__pill.is-plus {
  justify-content: center;
  min-width: 2rem;
  border-style: dashed;
  border-color: var(--color-text-muted);
  background: transparent;
  color: var(--color-text-muted);
  opacity: 0.7;
}

.m02-dfdg__pill.is-plus:hover,
.m02-dfdg.is-linking .m02-dfdg__pill.is-plus.is-target {
  opacity: 1;
  border-color: var(--cfdg-in);
  color: var(--cfdg-in);
}

/* ── 흐름도 더함: 선 규칙 이름표 · 흐름 길 · 끊긴 곳 · 알약 고름 ── */
.m02-dfdg {
  --dfdg-back: var(--color-accent);
  --dfdg-fwd: #c2410c;
}

:root[data-theme="dark"] .m02-dfdg {
  --dfdg-fwd: #f0a35e;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .m02-dfdg {
    --dfdg-fwd: #f0a35e;
  }
}

.m02-dfdg__rule rect {
  fill: var(--color-surface);
  stroke: var(--color-border);
}

.m02-dfdg__rule text {
  fill: var(--color-text-secondary);
  font-size: 11px;
}

.m02-dfdg__link.is-strong .m02-dfdg__rule rect {
  stroke: var(--color-accent);
}

/* 흐름 길 — 색 + 굵기 + 점선(색만으로 뜻을 안 전함) */
.m02-dfdg__link.is-back .m02-dfdg__wire {
  stroke: var(--dfdg-back);
  stroke-width: 3.5;
}

.m02-dfdg__link.is-fwd .m02-dfdg__wire {
  stroke: var(--dfdg-fwd);
  stroke-width: 3.5;
  stroke-dasharray: 8 5;
}

.m02-dfdg__link.is-dim .m02-dfdg__wire,
.m02-dfdg__link.is-dim .m02-dfdg__rule {
  opacity: 0.25;
}

.m02-dfdg__box.is-back {
  outline: 3px solid var(--dfdg-back);
  outline-offset: 2px;
}

.m02-dfdg__box.is-fwd {
  outline: 3px dashed var(--dfdg-fwd);
  outline-offset: 2px;
}

.m02-dfdg__box.is-dim {
  opacity: 0.45;
}

.m02-dfdg__pill.is-back {
  box-shadow: 0 0 0 2px var(--dfdg-back);
}

.m02-dfdg__pill.is-fwd {
  outline: 2px dashed var(--dfdg-fwd);
  outline-offset: 1px;
}

.m02-dfdg__legend {
  padding: 0 var(--spacing-8);
  border-radius: 999px;
  font-size: var(--text-caption);
}

.m02-dfdg__legend.is-back {
  border: 2px solid var(--dfdg-back);
  color: var(--dfdg-back);
}

.m02-dfdg__legend.is-fwd {
  border: 2px dashed var(--dfdg-fwd);
  color: var(--dfdg-fwd);
}

/* 고른 알약 테두리 */
.m02-dfdg__pill.is-chosen {
  box-shadow: 0 0 0 2px var(--color-text);
}

/* 끊긴 곳 */
.m02-dfdg__warn {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 18px;
  height: 18px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--color-danger);
  color: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  line-height: 18px;
  cursor: pointer;
}

.m02-dfdg__pill.is-broken {
  border-color: var(--color-danger);
}

.m02-dfdg__pill-warn {
  color: var(--color-danger);
  font-weight: 700;
}

.m02-dfdg__linkwarn circle {
  fill: var(--color-danger);
}

.m02-dfdg__linkwarn text {
  fill: #fff;
  font-size: 11px;
  font-weight: 700;
}

/* 기댐 선 — 규칙이 기대는 알약 → 그 규칙이 있는 곳 · 흐린 점선 + 화살 */
.m02-dfdg__dep {
  pointer-events: auto;
  cursor: pointer;
}

.m02-dfdg__depwire {
  fill: none;
  stroke: color-mix(in srgb, var(--color-text-muted) 70%, transparent);
  stroke-width: 1.5;
  stroke-dasharray: 3 4;
}

.m02-dfdg__arrow {
  fill: var(--color-text-muted);
}

.m02-dfdg__deptext rect {
  fill: var(--color-canvas);
  stroke: none;
  opacity: 0.85;
}

.m02-dfdg__deptext text {
  fill: var(--color-text-muted);
  font-size: 10px;
}

.m02-dfdg__dep.is-strong .m02-dfdg__depwire {
  stroke: var(--color-accent);
  stroke-width: 2.5;
}

.m02-dfdg__dep.is-back .m02-dfdg__depwire {
  stroke: var(--dfdg-back);
  stroke-width: 2.5;
}

.m02-dfdg__dep.is-fwd .m02-dfdg__depwire {
  stroke: var(--dfdg-fwd);
  stroke-width: 2.5;
}

.m02-dfdg__dep.is-dim {
  opacity: 0.25;
}

/* 쉼 — 조건이 안 맞아 이번엔 안 지나감(문제 아님) */
.m02-dfdg__link.is-rest .m02-dfdg__wire {
  stroke: var(--color-text-muted);
  stroke-width: 1.5;
  stroke-dasharray: 2 5;
}

.m02-dfdg__restmark rect {
  fill: var(--color-surface);
  stroke: var(--color-text-muted);
  stroke-dasharray: 2 2;
}

.m02-dfdg__restmark text {
  fill: var(--color-text-muted);
  font-size: 10px;
}

.m02-dfdg__box.is-rest {
  opacity: 0.5;
}

/* 빈 판 안내 — 가운데 세 줄 */
.m02-dfdg__empty {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: var(--spacing-16) var(--spacing-24);
  list-style: none;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  pointer-events: none;
}

/* 쉼 — 받는 알약만(상자 흐림은 들어오는 선이 모두 쉼일 때) */
.m02-dfdg__pill.is-in.is-rest {
  border-style: dashed;
  border-color: var(--color-text-muted);
  color: var(--color-text-muted);
  opacity: 0.7;
}