/* ============================================================
   インタラクティブ・シミュレーション
   ============================================================ */

.sim {
  --sim-surface: #fcfcfb;
  --sim-ink: #0b0b0b;
  --sim-ink2: #52514e;
  --sim-muted: #898781;
  --sim-grid: #e1e0d9;
  --sim-axis: #c3c2b7;
  --sim-s1: #2a78d6;
  --sim-s2: #eb6834;
  --sim-s3: #1baf7a;
  --sim-s4: #eda100;
  --sim-red: #e34948;
  --sim-border: rgba(11, 11, 11, 0.1);
  --sim-font: "Noto Sans JP", system-ui, -apple-system, "Segoe UI", sans-serif;

  margin: 0.8em 0 0.4em;
  padding: 0.9rem 1rem 0.8rem;
  border-radius: 10px;
  background: var(--sim-surface);
  border: 1px solid var(--sim-border);
  color: var(--sim-ink);
  font-size: 0.72rem;
  line-height: 1.6;
}

[data-md-color-scheme="slate"] .sim {
  --sim-surface: #1a1a19;
  --sim-ink: #ffffff;
  --sim-ink2: #c3c2b7;
  --sim-muted: #898781;
  --sim-grid: #2c2c2a;
  --sim-axis: #383835;
  --sim-s1: #3987e5;
  --sim-s2: #d95926;
  --sim-s3: #199e70;
  --sim-s4: #c98500;
  --sim-red: #e66767;
  --sim-border: rgba(255, 255, 255, 0.1);
}

.sim-controls {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 0.5rem 1.2rem;
  margin-bottom: 0.5rem;
}
.sim-controls.sim-sub {
  margin-top: -0.1rem;
}

.sim-field {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}
.sim-field-label {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--sim-ink2);
}
.sim-value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--sim-ink);
}
.sim-field input[type="range"] {
  width: 100%;
  accent-color: var(--sim-s1);
  margin: 0.2rem 0 0;
}
.sim-field select {
  font: inherit;
  color: var(--sim-ink);
  background: var(--sim-surface);
  border: 1px solid var(--sim-axis);
  border-radius: 6px;
  padding: 0.25rem 0.4rem;
}

.sim-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--sim-ink2);
  align-self: end;
  padding-bottom: 0.2rem;
}
.sim-check input {
  accent-color: var(--sim-s1);
}

.sim-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.2rem 0 0.6rem;
}
.sim-btn {
  font: inherit;
  cursor: pointer;
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--sim-axis);
  background: transparent;
  color: var(--sim-ink);
  transition: background 0.15s;
}
.sim-btn:hover {
  background: var(--sim-grid);
}
.sim-btn-primary {
  background: var(--sim-s1);
  border-color: var(--sim-s1);
  color: #fff;
}
.sim-btn-primary:hover {
  background: var(--sim-s1);
  filter: brightness(1.08);
}
.sim-btn:focus-visible,
.sim-field input:focus-visible,
.sim-field select:focus-visible {
  outline: 2px solid var(--sim-s1);
  outline-offset: 2px;
}

.sim-plot {
  width: 100%;
  margin: 0.2rem auto;
}
.sim-plot canvas {
  display: block;
  touch-action: pan-y;
}

.sim-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
  margin: 0.35rem 0 0.2rem;
  color: var(--sim-ink2);
}
.sim-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.sim-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--sw);
}
.sim-swatch-light {
  opacity: 0.35;
}
.sim-swatch-plain {
  background: var(--sim-grid);
  box-shadow: inset 0 0 0 1px var(--sim-axis);
}
.sim-swatch-line {
  width: 18px;
  height: 0;
  border-radius: 0;
  border-top: 2.5px solid var(--sw);
  background: none;
}
.sim-swatch-dash {
  width: 18px;
  height: 0;
  border-radius: 0;
  border-top: 2.5px dashed var(--sw);
  background: none;
}
.sim-swatch-band {
  opacity: 0.25;
  width: 18px;
}

.sim-readout {
  margin-top: 0.4rem;
  padding-top: 0.45rem;
  border-top: 1px solid var(--sim-grid);
  color: var(--sim-ink2);
  font-variant-numeric: tabular-nums;
}
.sim-readout b {
  color: var(--sim-ink);
}
.sim-big {
  font-size: 1.15em;
}
.sim-note {
  margin-top: 0.2rem;
  font-size: 0.95em;
  color: var(--sim-muted);
}

@media (max-width: 480px) {
  .sim {
    padding: 0.7rem 0.6rem;
  }
  .sim-controls {
    grid-template-columns: 1fr;
  }
}