.idea-assistant-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.idea-assistant-section-title {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.idea-assistant-intro {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.94rem;
}

.idea-assistant-chat-column,
.idea-assistant-form-column {
  min-height: 75vh;
}

.idea-assistant-messages {
  border: 1px solid var(--color-border-primary);
  border-radius: 10px;
  padding: 1rem;
  height: 52vh;
  overflow-y: auto;
  background: var(--color-surface-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.idea-assistant-bubble {
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  white-space: pre-wrap;
  line-height: 1.45;
}

.idea-assistant-bubble.user {
  align-self: flex-end;
  background: var(--color-brand-primary-subtle);
  border: 1px solid rgba(236, 98, 43, 0.4);
  color: var(--color-text-primary);
  max-width: 86%;
}

.idea-assistant-bubble.assistant {
  align-self: flex-start;
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  max-width: 92%;
}

.idea-assistant-chat-form {
  margin-top: 1rem;
}

.idea-assistant-chat-actions {
  margin-top: 0.75rem;
  display: flex;
  justify-content: flex-end;
}

.idea-assistant-suggestion {
  margin-top: 0.6rem;
  padding: 0.7rem;
  border: 1px dashed rgba(124, 22, 245, 0.45);
  border-radius: 8px;
  background: var(--color-brand-secondary-subtle);
}

.idea-assistant-suggestion-text {
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
  font-size: 0.92rem;
}

.idea-quick-start-card {
  border: 1px solid var(--color-border-primary);
  background: var(--color-surface-primary);
  border-radius: 12px;
  padding: 1.15rem 1.1rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
}

.idea-quick-start-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.8rem;
}

.idea-concept-chat {
  margin-top: 0.95rem;
  border: 1px solid var(--color-border-primary);
  border-radius: 12px;
  background: linear-gradient(180deg, var(--color-surface-secondary), var(--color-surface-primary));
  padding: 0.85rem;
}

.idea-concept-chat-title {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
}

.idea-concept-chat-thread {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.idea-concept-chat-message {
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--color-border-primary);
}

.idea-concept-chat-message-assistant {
  align-self: flex-start;
  width: min(100%, 96%);
  background: var(--color-surface-primary);
}

.idea-concept-chat-meta {
  margin: 0 0 0.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.idea-concept-chat-content {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.45;
}

.idea-concept-chat-note {
  margin: 0.5rem 0 0;
  color: var(--color-text-secondary);
  font-size: 0.89rem;
}

.concept-submit-loading {
  margin-top: 0.85rem;
  border: 1px solid rgba(124, 22, 245, 0.35);
  background: var(--color-brand-secondary-subtle);
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.concept-submit-loading[hidden] {
  display: none !important;
}

.concept-submit-spinner {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 2px solid rgba(124, 22, 245, 0.28);
  border-top-color: var(--color-brand-secondary);
  animation: concept-submit-spin 0.9s linear infinite;
  margin-top: 2px;
}

.concept-submit-loading-copy {
  min-width: 0;
}

.concept-submit-loading-title {
  margin: 0 0 0.15rem;
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 0.9rem;
}

.concept-submit-loading-status {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
}

.idea-quick-start-status {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.idea-structured-details {
  margin-top: 1rem;
  border: 1px solid var(--color-border-primary);
  border-radius: 12px;
  padding: 1rem 1.05rem;
  background: var(--color-surface-primary);
  box-shadow: var(--shadow-sm);
}

.idea-structured-details > summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text-primary);
}

.idea-step-hidden {
  display: none;
}

@keyframes concept-submit-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1100px) {
  .idea-assistant-layout {
    grid-template-columns: 1fr;
  }

  .idea-assistant-chat-column,
  .idea-assistant-form-column {
    min-height: auto;
  }

  .idea-assistant-messages {
    height: 38vh;
  }
}

@media (max-width: 640px) {
  .idea-quick-start-actions .btn {
    flex: 1 1 100%;
  }
}