.decision-runtime {
  margin-top: var(--space-7);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.decision-runtime [hidden] {
  display: none !important;
}

.decision-runtime__head,
.decision-runtime__stage,
.decision-runtime__footer {
  padding: var(--space-5);
}

.decision-runtime__head {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), var(--surface));
}

.decision-runtime__eyebrow,
.decision-runtime__stage-number {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.decision-runtime__title {
  margin: var(--space-2) 0;
  font-size: 1.45rem;
}

.decision-runtime__intro,
.decision-runtime__situation,
.decision-runtime__hint,
.decision-runtime__status {
  color: var(--text-muted);
}

.decision-runtime__progress {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.decision-runtime__track {
  height: 0.45rem;
  border-radius: 999px;
  background: var(--bg-alt);
  overflow: hidden;
}

.decision-runtime__track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 180ms ease;
}

.decision-runtime__stage {
  display: grid;
  gap: var(--space-5);
}

.decision-runtime__stage-title {
  margin: var(--space-2) 0;
  font-size: 1.2rem;
}

.decision-runtime__prediction {
  display: grid;
  gap: var(--space-2);
  font-weight: 650;
}

.decision-runtime__prediction textarea {
  width: 100%;
  min-height: 6rem;
  resize: vertical;
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  color: var(--text);
  font: inherit;
  line-height: 1.5;
}

.decision-runtime__prediction textarea:focus,
.decision-runtime__choice:focus-visible,
.decision-runtime__button:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 65%, transparent);
  outline-offset: 2px;
}

.decision-runtime__prediction textarea[aria-invalid="true"] {
  border-color: var(--accent-danger);
}

.decision-runtime__choices {
  margin: 0;
  padding: 0;
  border: 0;
}

.decision-runtime__choices legend {
  margin-bottom: var(--space-3);
  font-weight: 700;
}

.decision-runtime__choices [data-options] {
  display: grid;
  gap: var(--space-2);
}

.decision-runtime__choice {
  width: 100%;
  min-height: 3.25rem;
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  color: var(--text);
  font: inherit;
  font-weight: 620;
  text-align: left;
  cursor: pointer;
}

.decision-runtime__choice:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-alt));
}

.decision-runtime__choice:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.decision-runtime__feedback {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
}

.decision-runtime__feedback p,
.decision-runtime__feedback pre {
  margin: 0;
}

.decision-runtime__feedback pre {
  max-height: 16rem;
  overflow: auto;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.decision-runtime__feedback--success {
  border-color: color-mix(in srgb, #22c55e 55%, var(--border));
}

.decision-runtime__feedback--retry {
  border-color: color-mix(in srgb, #f59e0b 55%, var(--border));
}

.decision-runtime__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0 var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.decision-runtime__button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
}

.decision-runtime__button--reset {
  color: var(--accent-danger);
}

.decision-runtime__footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-alt) 55%, transparent);
}

.decision-runtime__status {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.decision-runtime__summary {
  display: grid;
  gap: var(--space-4);
}

.decision-runtime__summary h3,
.decision-runtime__summary p {
  margin: 0;
}

.decision-runtime__summary-grid {
  display: grid;
  gap: var(--space-3);
}

.decision-runtime__summary-card {
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
}

.decision-runtime__summary-card h4 {
  margin: 0 0 var(--space-2);
}

.decision-runtime__summary-card p {
  margin-top: var(--space-1);
  color: var(--text-muted);
}

.decision-runtime__summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.decision-runtime__empty {
  padding: var(--space-5);
  color: var(--text-muted);
}

@media (max-width: 760px) {
  .decision-runtime__head,
  .decision-runtime__stage,
  .decision-runtime__footer {
    padding: var(--space-4);
  }

  .decision-runtime__button,
  .decision-runtime__summary-actions .decision-runtime__button {
    width: 100%;
  }
}