/* Streaming animation diagram variables and controls */

:root {
  --d-bg: #dce4ed;
  --d-surface: #edf2f7;
  --d-node-fill: #ffffff;
  --d-node-stroke: #028392;
  --d-line: rgba(0, 0, 0, 0.12);
  --d-line-active: #028392;
  --d-text: #1a1a2e;
  --d-text-secondary: #4a5568;
  --d-text-muted: rgba(0, 0, 0, 0.38);
  --d-token: #028392;
  --d-permit: #16a34a;
  --d-deny: #dc2626;
  --d-state-initial: #4a5568;
  --d-container-stroke: #028392;
  --d-container-fill: #e4eaf1;
  --d-container-label: #028392;
  --d-state-bg: #dce4ed;
  --d-drop-color: #dc2626;
  --d-narration: #026d79;
}

[data-theme="dark"] {
  --d-bg: #222629;
  --d-surface: #292c2f;
  --d-node-fill: #363a3e;
  --d-node-stroke: #3fa09e;
  --d-line: rgba(255, 255, 255, 0.06);
  --d-line-active: #3fa09e;
  --d-text: #e3e4e6;
  --d-text-secondary: #929699;
  --d-text-muted: rgba(255, 255, 255, 0.35);
  --d-token: #3fa09e;
  --d-permit: #4ec751;
  --d-deny: #ef4444;
  --d-state-initial: #b0b4b8;
  --d-container-stroke: #3fa09e;
  --d-container-fill: #272b2e;
  --d-container-label: #3fa09e;
  --d-state-bg: #1b1e21;
  --d-drop-color: #ef4444;
  --d-narration: #7bbdbc;
}

/* Animation controls */
.anim-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}

.anim-controls button {
  background: var(--color-bg-card);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  padding: 6px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  transition: all 150ms ease;
}

.anim-controls button:hover:not(:disabled) {
  border-color: var(--color-primary);
}

.anim-controls button:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-stacked {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 70px;
  height: 50px;
  padding: 4px 16px;
}

.btn-icon { font-size: 16px; line-height: 1; }
.btn-label { font-size: 11px; margin-top: 2px; }

.anim-step-counter {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  min-width: 50px;
  text-align: center;
}

/* Range slider */
.anim-controls input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--color-border);
  outline: none;
}

.anim-controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
}

.anim-controls input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
}

.anim-controls input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--color-primary-light, #7bbdbc);
}

.anim-controls input[type="range"]::-moz-range-thumb:hover {
  background: var(--color-primary-light, #7bbdbc);
}

@media (prefers-reduced-motion: reduce) {
  .anim-controls ~ svg * {
    animation: none !important;
    transition: none !important;
  }
}