body {
  font-family: system-ui, sans-serif;
  padding: 2rem;
  background: #0f1117;
  color: #e2e8f0;
  line-height: 1.5;
}

.card {
  background: #1a1d2e;
  border: 1px solid #2d3148;
  border-radius: 8px;
  padding: 2rem;
  max-width: 640px;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.subtitle {
  margin: 0 0 1.5rem;
  color: #94a3b8;
  font-size: 0.95rem;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  background: #1e3a5f;
  color: #60a5fa;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

dl {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.35rem 1rem;
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  align-items: center;
}

dt {
  color: #94a3b8;
}

dd {
  margin: 0;
}

code {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab {
  flex: 1;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  border: 1px solid #475569;
  background: #0b1220;
  color: #94a3b8;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
}

.tab.active {
  background: #1e3a5f;
  border-color: #3b82f6;
  color: #93c5fd;
}

.tab-panel .actions {
  margin-top: 1rem;
  margin-bottom: 0;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

button {
  padding: 0.6rem 1rem;
  border-radius: 6px;
  border: 1px solid #475569;
  background: #334155;
  color: #e2e8f0;
  cursor: pointer;
  font-size: 0.95rem;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  background: #1e3a5f;
  border-color: #3b82f6;
  color: #93c5fd;
}

pre {
  margin: 0;
  padding: 0.75rem;
  border-radius: 6px;
  background: #0b1220;
  border: 1px solid #2d3148;
  font-size: 0.8rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 4rem;
  max-height: 16rem;
}

.hint {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #64748b;
}

.panel {
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: 6px;
  background: #0b1220;
  border: 1px solid #2d3148;
}

.panel-title {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #e2e8f0;
}

.panel-hint {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: #64748b;
}

.user-form-fields {
  display: grid;
  gap: 0.9rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.85rem;
  color: #94a3b8;
}

.field input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.6rem 0.75rem;
  border-radius: 6px;
  border: 1px solid #475569;
  background: #1a1d2e;
  color: #e2e8f0;
  font: inherit;
  font-size: 0.95rem;
}

.field input::placeholder {
  color: #64748b;
}

.field input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.scenario-field {
  margin: 0;
}

.field select {
  width: 100%;
  box-sizing: border-box;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid #475569;
  background: #1a1d2e;
  color: #e2e8f0;
  font: inherit;
  font-size: 0.9rem;
}

.field select:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

#scenario-hint:empty {
  display: none;
}