/* Sim framework – shared styles for interactive simulation containers.
   Articles must define these CSS variables: --sim-bg, --sim-border,
   --accent, --blue, --text, --text-light */

.sim-wrap {
  margin: 1.8rem 0 2.2rem;
  border: 1px solid var(--sim-border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--sim-bg);
}

.sim-canvas-wrap {
  position: relative;
  width: 100%;
  height: var(--sim-height, 280px);
}

.sim-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.sim-controls {
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--sim-border);
  background: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem 1.5rem;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.82rem;
}

.sim-controls label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
}

.sim-controls input[type="range"] {
  width: 100px;
  accent-color: var(--accent);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: #ddd;
  border-radius: 3px;
  outline: none;
}

.sim-controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

.sim-controls input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

.sim-controls .slider-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-light);
  min-width: 2.5em;
  text-align: right;
}

.sim-controls button {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 5px;
  border: 1px solid var(--sim-border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.sim-controls button:hover {
  background: var(--sim-bg);
  border-color: #bbb;
}

.sim-controls button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.sim-controls button.primary:hover {
  background: #a83e22;
}

.sim-controls .push-btn {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.sim-controls .push-btn:hover {
  background: #1f5aa8;
}

.sim-label {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  padding: 0.6rem 1rem 0;
  font-weight: 600;
}

.sim-note {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.78rem;
  color: var(--text-light);
  padding: 0.4rem 1rem 0.7rem;
  line-height: 1.45;
}

@media (max-width: 600px) {
  .sim-controls { gap: 0.5rem 1rem; }
  .sim-controls input[type="range"] { width: 80px; height: 8px; }
  .sim-controls input[type="range"]::-webkit-slider-thumb { width: 28px; height: 28px; }
  .sim-controls input[type="range"]::-moz-range-thumb { width: 28px; height: 28px; }
}