#ai-tool {
  border-top: 1px solid var(--accent-subtle);
}

.ai-tool-header {
  margin-bottom: var(--space-7);
}

/* Two-column layout */
.fit-layout {
  display: flex;
  min-height: 520px;
}

.fit-tiles {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  align-content: start;
  padding-right: var(--space-6);
}

.fit-divider {
  width: 1px;
  background: var(--accent-glow);
  flex-shrink: 0;
}

.fit-panel {
  flex: 1;
  padding-left: var(--space-6);
}

/* Tiles */
.fit-tile {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--accent-glow);
  border-radius: 2px;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-body);
  cursor: pointer;
  text-align: left;
  transition: border-color 150ms ease, background-color 150ms ease, border-left-width 150ms ease;
}

.fit-tile:hover {
  border-color: var(--accent-muted);
}

.fit-tile i {
  font-size: 22px;
  opacity: 0.45;
  transition: opacity 150ms ease;
}

.fit-tile span {
  font-size: 0.875rem;
  opacity: 0.7;
  transition: opacity 150ms ease;
}

.fit-tile.active {
  border-color: var(--accent);
  border-left: 3px solid var(--accent);
  background: var(--accent-subtle);
}

.fit-tile.active i,
.fit-tile.active span {
  opacity: 1;
}

/* Panel inner, fade transition */
.fit-panel-inner {
  transition: opacity 150ms ease;
}

/* Block labels */
.fit-block-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-2);
}

/* Service pills */
.fit-services {
  margin-bottom: var(--space-5);
}

.fit-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.fit-pill {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--accent-muted);
  border-radius: 3px;
  font-size: 12px;
  color: var(--accent);
}

/* Approach */
.fit-approach {
  margin-bottom: var(--space-5);
}

.fit-approach-text {
  font-size: 0.9375rem;
  color: var(--text-dim);
  line-height: 1.75;
}

/* Timeline */
.fit-timeline {
  margin-bottom: var(--space-6);
}

.fit-timeline-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}

/* Actions */
.fit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.fit-deeper-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent-muted);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 200ms ease;
}

.fit-deeper-btn:hover {
  border-color: var(--accent);
}

.fit-deeper-btn .arrow {
  transition: transform 150ms ease;
}

.fit-deeper-btn:hover .arrow {
  transform: translateX(4px);
}

/* Context form */
.fit-context-title {
  font-size: 0.9375rem;
  color: var(--text-dim);
  margin-bottom: var(--space-5);
}

.fit-field {
  margin-bottom: var(--space-5);
}

.fit-field-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.fit-optional {
  color: var(--accent);
  opacity: 0.5;
  font-weight: 400;
}

.fit-pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.fit-pill-btn {
  padding: 6px 14px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-primary);
  opacity: 0.5;
  background: transparent;
  border: 1px solid var(--accent-muted);
  border-radius: 4px;
  cursor: pointer;
  transition: all 150ms ease;
}

.fit-pill-btn:hover {
  opacity: 0.7;
  border-color: var(--accent);
}

.fit-pill-btn.selected {
  opacity: 1;
  border-color: var(--accent);
  background: var(--accent-subtle);
}

.fit-context-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--accent-muted);
  border-radius: 4px;
  outline: none;
  transition: border-color 200ms ease;
}

.fit-context-input::placeholder {
  color: var(--text-muted);
}

.fit-context-input:focus {
  border-color: var(--accent);
}

.fit-analyse-btn {
  display: block;
  width: 100%;
  padding: 0.875rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  margin-bottom: var(--space-3);
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.fit-analyse-btn:hover:not(:disabled) {
  background: var(--accent-dim);
}

.fit-analyse-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.fit-context-back {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--accent);
  opacity: 0.6;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: opacity 200ms ease;
}

.fit-context-back:hover {
  opacity: 1;
}

/* Loading state */
.fit-loading {
  text-align: center;
  padding: var(--space-8) 0;
}

@keyframes fitPulse {
  0%, 100% { opacity: 0.3; transform: scaleX(0.5); }
  50% { opacity: 1; transform: scaleX(1); }
}

.fit-pulse {
  width: 120px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto var(--space-4);
  animation: fitPulse 1.5s ease-in-out infinite;
}

.fit-loading-text {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* AI result */
.fit-ai-blocks {
  margin-bottom: var(--space-6);
}

.fit-ai-block {
  margin-bottom: var(--space-5);
}

.fit-ai-block-content {
  font-size: 0.9375rem;
  color: rgba(232, 236, 241, 0.75);
  line-height: 1.7;
}

.fit-ai-block-caveat {
  font-style: italic;
  color: rgba(232, 236, 241, 0.45);
}

.fit-back-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: opacity 200ms ease;
}

.fit-back-btn:hover {
  opacity: 0.7;
}

/* Hidden state */
.fit-hidden {
  display: none;
}

/* Mobile */
@media (max-width: 768px) {
  .fit-layout {
    flex-direction: column;
    min-height: auto;
    gap: var(--space-6);
  }

  .fit-tiles {
    padding-right: 0;
  }

  .fit-divider {
    width: 100%;
    height: 1px;
  }

  .fit-panel {
    padding-left: 0;
  }

  .fit-deeper-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fit-pulse {
    animation: none;
    opacity: 1;
  }
}