/* ═══════════════════════════════════════════════════════════
   COMPONENTS — All UI elements
   ═══════════════════════════════════════════════════════════ */

/* ── ECHO STACK ──────────────────────────────────────────── */
.echo-stack {
  position: relative;
  display: inline-block;
  user-select: none;
}

.echo-stack .echo-layer {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: clamp(3rem, 8vw, 7rem);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  white-space: nowrap;
}

.echo-stack .echo-front {
  position: relative;
  color: var(--text-primary);
  z-index: 5;
}

.echo-stack .echo-bg {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.echo-stack .echo-bg-1 { color: var(--echo-1); transform: translate(-0.04em, -0.04em); z-index: 4; }
.echo-stack .echo-bg-2 { color: var(--echo-2); transform: translate(-0.08em, -0.08em); z-index: 3; }
.echo-stack .echo-bg-3 { color: var(--echo-3); transform: translate(-0.12em, -0.12em); z-index: 2; }
.echo-stack .echo-bg-4 { color: var(--echo-4); transform: translate(-0.16em, -0.16em); z-index: 1; }

.welcome-subtitle {
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
  text-align: center;
  max-width: 480px;
}

/* ── DISCLAIMER BANNER ───────────────────────────────────── */
.disclaimer-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: rgba(17, 17, 17, 0.03);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  color: var(--text-secondary);
  max-width: 540px;
}

.disclaimer-banner svg {
  width: 14px;
  height: 14px;
  min-width: 14px;
  opacity: 0.5;
}

/* ── SUGGESTION CARDS ────────────────────────────────────── */
.suggestion-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  width: 100%;
  max-width: 780px;
}

.suggestion-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  cursor: pointer;
  transition: transform var(--duration-slow) var(--ease-out-expo),
              box-shadow var(--duration-slow) var(--ease-out-expo),
              border-color var(--duration-normal) ease;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  overflow: hidden;
}

.suggestion-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--text-primary);
  transform: scaleY(0);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  transform-origin: bottom;
}

.suggestion-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.suggestion-card:hover::before {
  transform: scaleY(1);
}

.suggestion-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.suggestion-card:hover .card-icon {
  transform: rotate(12deg);
}

.suggestion-card .card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
}

.suggestion-card .card-title {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.9rem;
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

.suggestion-card .card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

/* ── NEW CHAT BUTTON ─────────────────────────────────────── */
.btn-new-chat {
  width: 100%;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--text-inverse);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: var(--fw-bold);
  font-size: 0.85rem;
  letter-spacing: var(--tracking-wide);
  transition: background var(--duration-normal) ease,
              color var(--duration-normal) ease;
  text-align: center;
}

.btn-new-chat:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
}

/* ── CONVERSATION LIST ───────────────────────────────────── */
.conversation-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-4);
}

.conversation-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast) ease;
  gap: var(--space-2);
  border-left: 3px solid transparent;
}

.conversation-item:hover {
  background: var(--bg-dark-hover);
}

.conversation-item.active {
  background: var(--bg-dark-active);
  border-left-color: var(--text-inverse);
}

.conversation-item .conv-title {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-item.active .conv-title {
  color: var(--text-inverse);
}

.conversation-item .conv-delete {
  opacity: 0;
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: opacity var(--duration-fast) ease,
              background var(--duration-fast) ease;
}

.conversation-item:hover .conv-delete {
  opacity: 1;
}

.conversation-item .conv-delete:hover {
  background: rgba(196, 51, 51, 0.2);
  color: var(--confidence-low);
}

/* ── SIDEBAR SECTIONS ────────────────────────────────────── */
.sidebar-section {
  margin-top: var(--space-6);
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: var(--space-2) 0;
  user-select: none;
}

.sidebar-section-header .section-title {
  font-family: var(--font-body);
  font-weight: var(--fw-bold);
  font-size: 0.65rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-secondary);
}

.sidebar-section-header .section-chevron {
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
  transition: transform var(--duration-normal) ease;
}

.sidebar-section-header.collapsed .section-chevron {
  transform: rotate(-90deg);
}

.sidebar-section-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-2);
  overflow: hidden;
  transition: max-height var(--duration-med) var(--ease-out-expo);
}

.sidebar-section-body.collapsed {
  max-height: 0 !important;
  margin-top: 0;
}

/* ── TOOL GROUP LABELS ──────────────────────────────────── */
.tool-group-label {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.8rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: var(--space-2);
}

.tool-group-label:first-child {
  margin-top: 0;
}

.tool-group-label.required {
  color: #4ade80;
}

.tool-group-label.bonus {
  color: #fbbf24;
}

/* ── TOOL BUTTONS (clickable example prompts) ──────────── */
.tool-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: #b6b5b5;
  text-align: left;
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: background var(--duration-fast) ease,
              color var(--duration-fast) ease;
}

.tool-item:hover {
  background: var(--bg-dark-hover);
  color: #ffffff;
}

.tool-item .tool-icon {
  font-size: 0.9rem;
  width: 20px;
  min-width: 20px;
  text-align: center;
}

/* ── MESSAGE BUBBLES ─────────────────────────────────────── */
.message-row {
  display: flex;
  margin-bottom: var(--space-4);
  max-width: var(--max-message-width);
}

.message-row.user {
  margin-left: auto;
  justify-content: flex-end;
}

.message-row.assistant {
  margin-right: auto;
}

.message-bubble {
  padding: var(--space-4) var(--space-5);
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.message-bubble.user {
  background: var(--text-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-msg-user);
  font-size: 0.9rem;
  line-height: var(--leading-relaxed);
}

.message-bubble.assistant {
  background: var(--bg-white);
  color: var(--text-primary);
  border-radius: var(--radius-msg-bot);
  border: 1px solid var(--border-light);
  font-size: 0.9rem;
  line-height: var(--leading-relaxed);
}

/* Markdown rendering inside messages */
.message-bubble p { margin-bottom: var(--space-3); }
.message-bubble p:last-child { margin-bottom: 0; }
.message-bubble strong { font-weight: var(--fw-bold); }
.message-bubble em { font-style: italic; }
.message-bubble ul, .message-bubble ol { padding-left: var(--space-5); margin-bottom: var(--space-3); }
.message-bubble ul { list-style: disc; }
.message-bubble ol { list-style: decimal; }
.message-bubble li { margin-bottom: var(--space-1); }
.message-bubble code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
}
.message-bubble.user code {
  background: rgba(255, 255, 255, 0.15);
}
.message-bubble pre {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin-bottom: var(--space-3);
  font-size: 0.82rem;
}
.message-bubble pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: inherit;
}

/* Tables inside messages */
.message-bubble .table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
}

.message-bubble table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.message-bubble thead {
  background: rgba(0, 0, 0, 0.04);
}

.message-bubble th {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.8rem;
  letter-spacing: var(--tracking-wide);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--border-light);
  white-space: nowrap;
}

.message-bubble td {
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.message-bubble tbody tr:last-child td {
  border-bottom: none;
}

.message-bubble tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}

/* Horizontal rules */
.message-bubble hr {
  border: none;
  height: 1px;
  background: var(--border-light);
  margin: var(--space-5) 0;
}

/* Blockquotes */
.message-bubble blockquote {
  border-left: 3px solid var(--text-muted);
  padding: var(--space-2) var(--space-4);
  margin: 0 0 var(--space-3) 0;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.02);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Headings inside messages */
.message-bubble h2 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 1.15rem;
  letter-spacing: var(--tracking-tight);
  margin: var(--space-5) 0 var(--space-3) 0;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-light);
}

.message-bubble h3 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 1.0rem;
  letter-spacing: var(--tracking-tight);
  margin: var(--space-4) 0 var(--space-2) 0;
}

.message-bubble h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.9rem;
  margin: var(--space-3) 0 var(--space-2) 0;
}

.message-bubble h5 {
  font-family: var(--font-body);
  font-weight: var(--fw-bold);
  font-size: 0.85rem;
  margin: var(--space-3) 0 var(--space-2) 0;
}

.message-bubble h2:first-child,
.message-bubble h3:first-child,
.message-bubble h4:first-child,
.message-bubble h5:first-child {
  margin-top: 0;
}

/* Links inside messages */
.message-bubble a {
  color: #2563eb;
  text-decoration: underline;
  text-decoration-color: rgba(37, 99, 235, 0.3);
  text-underline-offset: 2px;
  transition: text-decoration-color var(--duration-fast) ease;
}

.message-bubble a:hover {
  text-decoration-color: #2563eb;
}

/* ── TOOL CALL STATUS ────────────────────────────────────── */
.tool-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tool-status svg {
  width: 14px;
  height: 14px;
  animation: spin 1s linear infinite;
}

.tool-status-summary {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: var(--space-2) 0;
  margin-top: var(--space-1);
}

/* ── STREAMING INDICATOR ─────────────────────────────────── */
.streaming-dots {
  display: inline-flex;
  gap: 4px;
  padding: var(--space-2);
}

.streaming-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: dotPulse 1.4s ease-in-out infinite;
}

.streaming-dots span:nth-child(2) { animation-delay: 0.2s; }
.streaming-dots span:nth-child(3) { animation-delay: 0.4s; }

/* Raw text element during streaming — preserves line breaks without HTML parsing */
.streaming-raw {
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── VERIFICATION METADATA ───────────────────────────────── */
.message-meta {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-light);
}

.meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.confidence-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.75rem;
  letter-spacing: var(--tracking-tight);
}

.confidence-badge.high {
  background: var(--confidence-high-bg);
  color: var(--confidence-high);
}

.confidence-badge.mid {
  background: var(--confidence-mid-bg);
  color: var(--confidence-mid);
}

.confidence-badge.low {
  background: var(--confidence-low-bg);
  color: var(--confidence-low);
}

.meta-tools, .meta-performance {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.meta-performance span {
  font-family: var(--font-mono);
}

/* Disclaimers */
.meta-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-left: 3px solid var(--accent-amber);
  background: rgba(255, 167, 38, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

/* Verification details (expandable) */
.verification-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-secondary);
  cursor: pointer;
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  margin-top: var(--space-3);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease,
              border-color var(--duration-fast) ease;
}

.verification-toggle:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.06);
  border-color: var(--text-muted);
}

.verification-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.verification-toggle .toggle-icon {
  opacity: 0.6;
}

.verification-toggle.expanded svg.toggle-chevron {
  transform: rotate(180deg);
}

.verification-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--duration-med) var(--ease-out-expo);
}

.verification-panel.expanded {
  max-height: 800px;
}

.verification-panel-inner {
  padding: var(--space-4) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.verification-section {
  padding: var(--space-4) var(--space-5);
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--text-muted);
  border-radius: var(--radius-sm);
  transition: border-left-color var(--duration-normal) ease;
}

.verification-section[data-section="drug-safety"] {
  border-left-color: var(--confidence-high);
}

.verification-section[data-section="allergy-safety"] {
  border-left-color: var(--confidence-high);
}

.verification-section[data-section="drug-safety"].has-flags {
  border-left-color: var(--confidence-low);
}

.verification-section[data-section="allergy-safety"].has-flags {
  border-left-color: var(--confidence-low);
}

.verification-section[data-section="confidence"] {
  border-left-color: var(--accent-blue);
}

.verification-section[data-section="claims"] {
  border-left-color: var(--confidence-mid);
}

.verification-section-title {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.75rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.verification-section-title svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.verification-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  font-size: 0.8rem;
  color: var(--text-primary);
}

.verification-item > span:first-child svg {
  width: 14px;
  height: 14px;
  margin-top: 2px;
}

.confidence-factors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.confidence-factor {
  text-align: center;
}

.confidence-factor .factor-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.confidence-factor .factor-bar {
  height: 6px;
  background: var(--border-light);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: var(--space-1);
}

.confidence-factor .factor-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  width: 0;
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.factor-fill.level-high,
.grounding-rate-fill.level-high { background: var(--confidence-high); }
.factor-fill.level-mid,
.grounding-rate-fill.level-mid { background: var(--confidence-mid); }
.factor-fill.level-low,
.grounding-rate-fill.level-low { background: var(--confidence-low); }

.confidence-factor .factor-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
}

.factor-value.level-high,
.grounding-rate-label.level-high { color: var(--confidence-high); }
.factor-value.level-mid,
.grounding-rate-label.level-mid { color: var(--confidence-mid); }
.factor-value.level-low,
.grounding-rate-label.level-low { color: var(--confidence-low); }

/* ── FEEDBACK BUTTONS ────────────────────────────────────── */
.feedback-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.feedback-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease;
}

.feedback-btn:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}

.feedback-btn.selected {
  color: var(--text-primary);
}

.feedback-btn.selected.up {
  color: var(--confidence-high);
  background: var(--confidence-high-bg);
}

.feedback-btn.selected.down {
  color: var(--confidence-low);
  background: var(--confidence-low-bg);
}

.feedback-btn.faded {
  opacity: 0.3;
  pointer-events: none;
}

.feedback-btn svg {
  width: 16px;
  height: 16px;
}

/* ── CLAIM VERIFICATION ──────────────────────────────────── */
.grounding-rate {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.grounding-rate-bar {
  flex: 1;
  height: 6px;
  background: var(--border-light);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.grounding-rate-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.grounding-rate-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: var(--fw-bold);
  white-space: nowrap;
  min-width: 80px;
}

.claim-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  margin-top: var(--space-1);
}

.claim-item.grounded {
  background: var(--confidence-high-bg);
}

.claim-item.ungrounded {
  background: var(--confidence-mid-bg);
}

.claim-icon {
  min-width: 16px;
  margin-top: 2px;
}

.claim-icon svg {
  width: 14px;
  height: 14px;
}

.claim-icon.grounded {
  color: var(--confidence-high);
}

.claim-icon.ungrounded {
  color: var(--confidence-mid);
}

.claim-text {
  flex: 1;
  color: var(--text-primary);
}

.claim-source {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
}

/* ── SAFETY STATUS ───────────────────────────────────────── */
.safety-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  align-self: flex-end;
}

.safety-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.safety-status.safe {
  background: var(--confidence-high-bg);
  color: var(--confidence-high);
}

.safety-status.safe .safety-dot {
  background: var(--confidence-high);
  box-shadow: 0 0 4px var(--confidence-high);
}

.safety-status.review {
  background: var(--confidence-mid-bg);
  color: var(--confidence-mid);
}

.safety-status.review .safety-dot {
  background: var(--confidence-mid);
  box-shadow: 0 0 4px var(--confidence-mid);
}

/* ── SIDEBAR FOOTER DISCLAIMER ───────────────────────────── */
.sidebar-disclaimer {
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.sidebar-attribution {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

/* ── HEALTH STATUS (sidebar) ─────────────────────────────── */
.sidebar-health {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ── THEME TOGGLE ────────────────────────────────────────── */
.sidebar-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease;
  flex-shrink: 0;
  overflow: hidden;
}

.theme-toggle:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
}

/* Default: hide sun, show moon (light mode default — click moon to go dark) */
.theme-icon-sun {
  display: none;
}

.theme-icon-sun,
.theme-icon-moon {
  transition: transform var(--duration-med) var(--ease-out-expo);
}

.theme-toggle:hover .theme-icon-sun,
.theme-toggle:hover .theme-icon-moon {
  transform: rotate(20deg);
}

/* ── DARK MODE COMPONENT OVERRIDES ───────────────────────── */

/* Smooth transition on theme switch */
body,
.sidebar,
.main,
.chat-header,
.message-bubble,
.input-wrapper,
.suggestion-card,
.btn-new-chat,
.btn-send,
.disclaimer-banner,
.verification-section,
.meta-disclaimer {
  transition: var(--theme-transition);
}

/* User message bubble in dark mode — slightly lighter bg */
[data-theme="dark"] .message-bubble.user {
  background: #e8e8e8;
  color: #0e0e0e;
}

/* Code blocks inside assistant messages */
[data-theme="dark"] .message-bubble code {
  background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .message-bubble pre {
  background: #111111;
  color: #e8e8e8;
  border: 1px solid var(--border-light);
}

/* Tables in dark mode */
[data-theme="dark"] .message-bubble .table-wrapper {
  border-color: var(--border-light);
}

[data-theme="dark"] .message-bubble thead {
  background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .message-bubble th {
  border-bottom-color: var(--border-light);
}

[data-theme="dark"] .message-bubble td {
  border-bottom-color: var(--border-light);
}

[data-theme="dark"] .message-bubble tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* Blockquotes in dark mode */
[data-theme="dark"] .message-bubble blockquote {
  border-left-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
}

/* Horizontal rule in dark mode */
[data-theme="dark"] .message-bubble hr {
  background: var(--border-light);
}

/* Links in dark mode */
[data-theme="dark"] .message-bubble a {
  color: #60a5fa;
  text-decoration-color: rgba(96, 165, 250, 0.3);
}

[data-theme="dark"] .message-bubble a:hover {
  text-decoration-color: #60a5fa;
}

/* Suggestion card hover */
[data-theme="dark"] .suggestion-card:hover {
  box-shadow: var(--shadow-lg);
}

/* Card icon background */
[data-theme="dark"] .suggestion-card .card-icon {
  background: rgba(255, 255, 255, 0.06);
}

/* Input wrapper focus ring */
[data-theme="dark"] .input-wrapper:focus-within {
  border-color: #e8e8e8;
  box-shadow: 0 0 0 3px rgba(232, 232, 232, 0.08);
}

/* Send button */
[data-theme="dark"] .btn-send {
  background: #e8e8e8;
  color: #0e0e0e;
}

/* New chat button */
[data-theme="dark"] .btn-new-chat {
  background: #e8e8e8;
  color: #0e0e0e;
}

[data-theme="dark"] .btn-new-chat:hover {
  background: #ffffff;
  color: #0e0e0e;
}

/* Verification section bg + borders */
[data-theme="dark"] .verification-section {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

/* Verification toggle */
[data-theme="dark"] .verification-toggle {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .verification-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Claim items */
[data-theme="dark"] .claim-item.grounded {
  background: rgba(61, 171, 100, 0.1);
}

[data-theme="dark"] .claim-item.ungrounded {
  background: rgba(224, 149, 42, 0.1);
}

/* Progress bars */
[data-theme="dark"] .confidence-factor .factor-bar,
[data-theme="dark"] .grounding-rate-bar {
  background: rgba(255, 255, 255, 0.08);
}

/* Feedback button hover */
[data-theme="dark"] .feedback-btn:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* Disclaimer banner */
[data-theme="dark"] .disclaimer-banner {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-light);
}

/* Chat header */
[data-theme="dark"] .chat-header {
  background: rgba(14, 14, 14, 0.9);
  border-bottom-color: var(--border-light);
}

/* ── Sidebar elements: always on dark bg, so keep text light ── */
[data-theme="dark"] .sidebar-logo-sub {
  color: #8a8a8a;
}

[data-theme="dark"] .conversation-item .conv-title {
  color: #b6b5b5;
}

[data-theme="dark"] .conversation-item.active .conv-title {
  color: #ffffff;
}

[data-theme="dark"] .conversation-item.active {
  border-left-color: #ffffff;
}

[data-theme="dark"] .sidebar-section-header .section-title,
[data-theme="dark"] .sidebar-section-header .section-chevron {
  color: #8a8a8a;
}

[data-theme="dark"] .tool-item {
  color: #b6b5b5;
}

[data-theme="dark"] .tool-item:hover {
  color: #ffffff;
}

[data-theme="dark"] .sidebar-health,
[data-theme="dark"] .sidebar-disclaimer,
[data-theme="dark"] .sidebar-attribution {
  color: #8a8a8a;
}

/* Scrollbar in dark mode */
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #3a3a3a;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: #4a4a4a;
}