/* ===== Deep Research ===== */

.research-page {
  max-width: 800px;
  margin: 0 auto;
}

/* Input card */
.research-input-card {
  margin-bottom: var(--space-lg);
}

.research-input-card input {
  font-size: var(--text-lg);
}

/* Progress */
.research-progress {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  border: 2px solid var(--color-secondary-light);
}

.research-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

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

#research-status {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.research-error {
  padding: var(--space-md);
  background: var(--color-error-light);
  border-radius: var(--radius-md);
  color: var(--color-error-dark);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

/* Report */
.research-report {
  margin-bottom: var(--space-xl);
  border: 2px solid var(--color-secondary-light);
}

.research-report-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
}

.research-report-body {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-text);
}

.research-report-body h2 {
  font-size: var(--text-xl);
  margin: var(--space-lg) 0 var(--space-sm);
  color: var(--color-primary);
}

.research-report-body h3 {
  font-size: var(--text-lg);
  margin: var(--space-lg) 0 var(--space-sm);
  color: var(--color-secondary-dark);
}

.research-report-body h4 {
  font-size: var(--text-base);
  margin: var(--space-md) 0 var(--space-xs);
  font-weight: 800;
}

.research-report-body p {
  margin-bottom: var(--space-sm);
}

.research-report-body strong {
  font-weight: 800;
}

.research-report-body li {
  margin-bottom: var(--space-xs);
  padding-left: var(--space-sm);
  position: relative;
  list-style: none;
}

.research-report-body li::before {
  content: '•';
  position: absolute;
  left: -4px;
  color: var(--color-primary);
  font-weight: 800;
}

.research-queries {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* History list */
.research-history-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.research-history-item:hover {
  border-color: var(--color-secondary);
  transform: translateX(2px);
}

.research-history-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.research-history-info {
  flex: 1;
  min-width: 0;
}

.research-history-title {
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: 2px;
}

.research-history-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.research-history-preview {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Responsive */
@media (max-width: 768px) {
  .research-report-header {
    flex-direction: column;
    gap: var(--space-sm);
  }
}