/* ── Agent UI palette ────────────────────────────────────────────────────────
 * Dark "research artifact" treatment lifted from the landing page (newsdesk.dev).
 * Body-text colors meet WCAG AA contrast on the dark backgrounds they sit on.
 */
:root {
  --agent-mint: #2f7d62;

  /* Thinking block */
  --agent-think-bg: var(--bg-secondary);
  --agent-think-border: var(--border-light);
  --agent-think-stripe: var(--border-medium);
  --agent-think-text: var(--text-secondary);
  --agent-think-label: var(--text-muted);
  --agent-think-divider: var(--border-faint);
  --agent-think-dot: var(--text-faint);
  --agent-think-code-bg: var(--bg-tertiary);
  --agent-think-code-text: var(--text-primary);

  /* Tool call */
  --agent-tool-bg: var(--bg-secondary);
  --agent-tool-header-bg: var(--bg-tertiary);
  --agent-tool-header-hover: var(--bg-active);
  --agent-tool-border: var(--border-light);
  --agent-tool-detail-bg: var(--bg-primary);
  --agent-tool-input-border: var(--border-light);
  --agent-tool-key: var(--text-secondary);
  --agent-tool-meta: var(--text-muted);
  --agent-tool-muted: var(--text-faint);
  --agent-tool-status: var(--text-muted);
  --agent-tool-preview: var(--text-secondary);
  --agent-tool-chip-text: var(--text-secondary);
  --agent-tool-chip-bg: var(--bg-tertiary);
  --agent-tool-arrow: var(--text-muted);
  --agent-tool-chevron: var(--text-faint);
  --agent-tool-list-title: var(--text-primary);
  --agent-tool-rel-name: var(--text-secondary);
  --agent-tool-pre-bg: var(--bg-tertiary);
  --agent-tool-pre-text: var(--text-secondary);
  --agent-tool-chip-more-border: var(--border-dashed);
  --agent-tool-sent-dot: var(--text-faint);

  /* Error state */
  --agent-error-text: #b42318;
  --agent-error-bg: #fef3f2;
  --agent-error-border: #f5c2c7;
  --agent-error-detail-bg: #fff7f7;
  --agent-error-pre-bg: #fdecec;
  --agent-error-pre-text: #7a2b2b;
  --agent-error-status: #a43a3a;
  --agent-error-pre-border: #f2b6b6;
}

/* ── Layout ── */
.agent-layout {
  display: flex;
  flex: 1;
  height: 100vh;
  overflow: hidden;
  min-width: 0;
  margin-left: var(--page-nav-width);
}

/* ── Sidebar ── */
.agent-sidebar {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-faint);
  background: var(--bg-secondary);
  height: 100vh;
  overflow: hidden;
  transition:
    width 0.25s ease,
    border-color 0.25s ease;
}

.agent-sidebar.collapsed {
  width: 0;
  border-right-color: transparent;
}

.agent-main {
  position: relative;
}

.agent-sidebar-reopen-btn {
  display: none;
  position: absolute;
  top: 13px;
  left: 14px;
  z-index: 10;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--border-light);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition:
    background 0.15s,
    color 0.15s;
}

.agent-sidebar-reopen-btn:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.agent-sidebar.collapsed ~ .agent-main .agent-sidebar-reopen-btn,
.agent-layout.sidebar-collapsed .agent-sidebar-reopen-btn {
  display: flex;
}

.agent-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 14px 10px;
  border-bottom: 1px solid var(--border-faint);
  flex-shrink: 0;
}

.agent-sidebar-title {
  font-size: var(--subtext-font-size);
  font-weight: var(--bold-font-weight);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agent-new-btn {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: transparent;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition:
    background 0.15s,
    color 0.15s;
}

.agent-new-btn:hover,
.agent-sidebar-btn:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.agent-sidebar-btn {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: transparent;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition:
    background 0.15s,
    color 0.15s;
}

.agent-conv-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 0;
}

.agent-conv-empty {
  padding: 16px 14px;
  font-size: var(--subtext-font-size);
  color: var(--text-faint);
}

.agent-conv-section-title {
  font-size: var(--micro-font-size);
  color: var(--text-faint);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 14px 4px;
}

.agent-conv-item {
  position: relative;
  padding: 8px 32px 8px 14px;
  cursor: pointer;
  border-radius: 6px;
  margin: 1px 6px;
  transition: background 0.12s;
}

.agent-conv-item:hover {
  background: var(--bg-active);
}
.agent-conv-item.active {
  background: var(--bg-active);
}

.agent-conv-item-title {
  font-size: var(--subtext-font-size);
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-conv-item-meta {
  font-size: var(--micro-font-size);
  color: var(--text-faint);
  margin-top: 2px;
}

.agent-conv-date {
  display: none;
  margin-left: 5px;
}

.agent-conv-item:hover .agent-conv-date {
  display: inline;
}

.agent-conv-menu-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-faint);
  opacity: 0;
  transition:
    opacity 0.1s,
    background 0.1s,
    color 0.1s;
}
.agent-conv-item:hover .agent-conv-menu-btn,
.agent-conv-menu-btn.active {
  opacity: 1;
}
.agent-conv-menu-btn:hover,
.agent-conv-menu-btn.active {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.agent-conv-pin-icon {
  display: inline-block;
  vertical-align: middle;
  margin-right: 4px;
  color: var(--text-faint);
  flex-shrink: 0;
}

/* ── Conversation context menu ── */
.agent-conv-menu {
  position: fixed;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 10px;
  box-shadow: 0 8px 24px var(--shadow-lg);
  padding: 4px;
  z-index: 9999;
  min-width: 140px;
}
.agent-conv-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 7px;
  font-size: var(--subtext-font-size);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.12s;
}
.agent-conv-menu-item:hover {
  background: var(--bg-tertiary);
}
.agent-conv-menu-item--danger {
  color: var(--danger, #e53e3e);
}
.agent-conv-menu-item--danger:hover {
  background: rgba(229, 62, 62, 0.08);
}

.agent-conv-rename-input {
  font-size: var(--subtext-font-size);
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 1px 5px;
  width: 100%;
  outline: none;
  font-family: inherit;
}

.agent-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  height: 100vh;
  overflow: hidden;
  min-width: 0;
  margin-left: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  padding-top: 0 !important;
}

.agent-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  overflow: hidden;
}

.agent-messages {
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.25) transparent;
}

.agent-messages::-webkit-scrollbar {
  width: 8px;
}
.agent-messages::-webkit-scrollbar-track {
  background: transparent;
}
.agent-messages::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 99px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.agent-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.35);
  background-clip: padding-box;
}

/* Header */
.agent-header {
  padding: 17px 0;
  border-bottom: 1px solid var(--border-faint);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.agent-header-title {
  font-size: var(--large-font-size);
  font-weight: var(--bold-font-weight);
  color: var(--text-primary);
}

.agent-header-sub {
  font-size: var(--subtext-font-size);
  color: var(--text-muted);
  margin-top: 3px;
}

/* Messages */
.agent-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 24px 0 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Welcome */
.agent-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 16px;
  padding: 40px 0;
  text-align: center;
}

.agent-welcome-icon {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.agent-welcome-text {
  font-size: var(--normal-font-size);
  color: var(--text-secondary);
  max-width: 420px;
  line-height: 1.6;
}

.agent-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 8px;
}

.agent-suggestion {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 7px 14px;
  font-size: var(--subtext-font-size);
  font-family: var(--font-family);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.agent-suggestion:hover {
  background: var(--bg-active);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

/* Messages */
.agent-message {
  display: flex;
  gap: 12px;
  max-width: 100%;
}

.agent-message--user {
  justify-content: flex-end;
}

.agent-message--user .agent-message-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px 16px 4px 16px;
  padding: 10px 14px;
  font-size: var(--normal-font-size);
  color: var(--text-primary);
  max-width: 75%;
  line-height: 1.55;
  word-break: break-word;
}

.agent-message--assistant {
  align-items: flex-start;
}

.agent-message--assistant.agent-message--waiting {
  align-items: center;
}

.agent-message-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-top: 0;
}

.agent-message-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.agent-waiting {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: var(--subtext-font-size);
  width: fit-content;
  margin-top: 0;
}

/* ── Thinking block (dark "agent at work" object) ── */
.agent-thinking-block {
  background: var(--agent-think-bg);
  border: 1px solid var(--agent-think-border);
  border-left: 1px solid var(--agent-think-border);
  border-radius: 4px;
  overflow: hidden;
  margin: 0 0 8px;
  font-size: var(--subtext-font-size);
  transition: border-left-color 0.4s ease;
}

.agent-thinking-block--done {
  border-left-color: var(--agent-think-border);
}

.agent-thinking-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  cursor: pointer;
  background: transparent;
  color: var(--agent-think-label);
  user-select: none;
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
}

.agent-thinking-header:hover {
  background: rgba(0, 0, 0, 0.03);
}

.agent-thinking-dots {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.agent-thinking-dots span {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--agent-think-dot);
  animation: agent-think-pulse 1.4s ease-in-out infinite;
}

.agent-thinking-dots span:nth-child(2) {
  animation-delay: 0.18s;
}
.agent-thinking-dots span:nth-child(3) {
  animation-delay: 0.36s;
}

@keyframes agent-think-pulse {
  0%,
  80%,
  100% {
    opacity: 0.25;
    transform: scale(0.8);
  }
  40% {
    opacity: 1;
    transform: scale(1);
  }
}

.agent-thinking-block--done .agent-thinking-dots {
  display: none;
}

.agent-thinking-check {
  width: 11px;
  height: 11px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--agent-mint);
  flex-shrink: 0;
}

.agent-thinking-block--done .agent-thinking-check {
  display: flex;
}

.agent-thinking-chevron {
  margin-left: auto;
  color: var(--agent-think-dot);
  transition:
    transform 0.15s,
    color 0.15s;
}

.agent-thinking-header:hover .agent-thinking-chevron {
  color: var(--agent-think-label);
}

.agent-thinking-block--open .agent-thinking-chevron {
  transform: rotate(180deg);
}

.agent-thinking-body {
  display: none;
  border-top: 1px solid var(--agent-think-divider);
}

.agent-thinking-block--open .agent-thinking-body {
  display: block;
}

/* Text segments inside thinking — the agent's reasoning */
.agent-thinking-segment {
  padding: 12px 14px;
  font-size: 12px;
  color: var(--agent-think-text);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  border-bottom: 1px solid var(--agent-think-divider);
}

.agent-thinking-segment:last-child {
  border-bottom: none;
}

.agent-thinking-segment code {
  font-family: "Menlo", "Monaco", "Consolas", monospace;
  font-size: 10.5px;
  background: var(--agent-think-code-bg);
  color: var(--agent-think-code-text);
  padding: 1px 5px;
  border-radius: 2px;
}

/* ── Tool calls (inside thinking block) — green-tinted "research object" ── */
.agent-tool-row {
  background: var(--agent-tool-bg);
  border-bottom: 1px solid var(--agent-think-divider);
}

.agent-tool-row:last-child {
  border-bottom: none;
}

.agent-tool-row-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  background: var(--agent-tool-header-bg);
  border-bottom: 1px solid var(--agent-tool-border);
  transition: background 0.12s;
}

.agent-tool-row-header:hover {
  background: var(--agent-tool-header-hover);
}

.agent-tool-spinner {
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--agent-tool-border);
  border-top-color: var(--agent-mint);
  border-radius: 50%;
  animation: agent-spin 0.7s linear infinite;
  flex-shrink: 0;
}

.agent-tool-check {
  width: 11px;
  height: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--agent-mint);
  flex-shrink: 0;
}

.agent-tool-row-name {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--agent-mint);
  font-weight: 600;
  flex-shrink: 0;
  font-family: "Menlo", "Monaco", "Consolas", monospace;
}

.agent-tool-row-preview {
  font-size: 11px;
  color: var(--agent-tool-preview);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: "Menlo", "Monaco", "Consolas", monospace;
}

.agent-tool-row-chevron {
  color: var(--agent-tool-chevron);
  flex-shrink: 0;
  transition:
    transform 0.15s,
    color 0.15s;
}

.agent-tool-row-header:hover .agent-tool-row-chevron {
  color: var(--agent-tool-key);
}

.agent-tool-row--open .agent-tool-row-chevron {
  transform: rotate(180deg);
}

.agent-tool-row-detail {
  display: none;
  background: var(--agent-tool-detail-bg);
}

.agent-tool-row--open .agent-tool-row-detail {
  display: block;
}

/* Input block — key/value lookup */
.agent-tool-input-table {
  padding: 10px 12px;
  font-family: "Menlo", "Monaco", "Consolas", monospace;
  font-size: 11px;
  line-height: 1.85;
  border-bottom: 1px solid var(--agent-tool-input-border);
}

.agent-tool-input-table:last-child {
  border-bottom: none;
}

.agent-tool-input-table--snapshot {
  padding: 10px 12px;
  border-bottom: none;
}

.agent-tool-kv {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0 12px;
  align-items: baseline;
}

.agent-tool-kv-key {
  color: var(--agent-tool-key);
  font-weight: 500;
}

.agent-tool-kv-val {
  color: var(--agent-mint);
  word-break: break-all;
  white-space: pre-wrap;
}

/* Result block */
.agent-tool-result-wrap {
  padding: 10px 12px;
}

.agent-tool-status-line {
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--agent-tool-status);
  font-weight: 600;
  margin-bottom: 8px;
  font-family: "Montserrat", sans-serif;
}

.agent-tool-empty {
  font-size: 11px;
  color: var(--agent-tool-muted);
  font-style: italic;
  padding: 2px 0;
  font-family: "Montserrat", sans-serif;
}

/* Result chips (entities, etc.) */
.agent-tool-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.agent-tool-chip {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  color: var(--agent-tool-chip-text);
  background: var(--agent-tool-chip-bg);
  padding: 3px 8px;
  font-family: "Montserrat", sans-serif;
}

.agent-tool-chip-meta {
  color: var(--agent-tool-meta);
  margin-left: 6px;
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.agent-tool-chip--more {
  color: var(--agent-tool-meta);
  background: transparent;
  border: 1px dashed var(--agent-tool-chip-more-border);
}

/* Path rendering: chip → arrow → chip → arrow → chip · confidence */
.agent-tool-path {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 5px;
  padding: 3px 0;
}

.agent-tool-path:last-child {
  margin-bottom: 0;
}

.agent-tool-path-arrow {
  color: var(--agent-tool-arrow);
  font-size: 12px;
  flex-shrink: 0;
  cursor: help;
}

.agent-tool-path-conf {
  margin-left: auto;
  font-size: 9.5px;
  color: var(--agent-mint);
  font-weight: 600;
  letter-spacing: 0.06em;
  font-family: "Montserrat", sans-serif;
  flex-shrink: 0;
}

/* Event / relationship rows */
.agent-tool-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.agent-tool-list-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-family: "Montserrat", sans-serif;
  font-size: 11.5px;
  color: var(--agent-tool-chip-text);
  line-height: 1.4;
}

.agent-tool-sent-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--agent-tool-sent-dot);
}

.agent-tool-list-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--agent-tool-list-title);
}

.agent-tool-rel-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-style: italic;
  color: var(--agent-tool-rel-name);
}

.agent-tool-list-meta {
  font-size: 9.5px;
  color: var(--agent-tool-meta);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
  font-family: "Menlo", "Monaco", "Consolas", monospace;
}

.agent-tool-list-more {
  font-size: 9.5px;
  color: var(--agent-tool-meta);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 0;
  font-family: "Montserrat", sans-serif;
}

/* Raw toggle */
.agent-tool-raw-toggle {
  display: inline-block;
  margin-top: 10px;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--agent-tool-muted);
  font-weight: 600;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  font-family: "Montserrat", sans-serif;
  transition: color 0.12s;
}

.agent-tool-raw-toggle:hover {
  color: var(--agent-mint);
}

.agent-tool-pre {
  font-family: "Menlo", "Monaco", "Consolas", monospace;
  font-size: 10.5px;
  color: var(--agent-tool-pre-text);
  background: var(--agent-tool-pre-bg);
  border: 1px solid var(--agent-tool-input-border);
  border-radius: 3px;
  padding: 8px 10px;
  margin: 8px 0 0;
  max-height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Error state */
.agent-tool-row--error .agent-tool-row-header {
  background: var(--agent-error-bg);
  border-bottom-color: var(--agent-error-border);
}

.agent-tool-row--error .agent-tool-row-name {
  color: var(--agent-error-text);
}

.agent-tool-row--error .agent-tool-check {
  color: var(--agent-error-text);
}

.agent-tool-row--error .agent-tool-row-detail {
  background: var(--agent-error-detail-bg);
}

.agent-tool-row--error .agent-tool-status-line {
  color: var(--agent-error-status);
}

.agent-tool-row--error .agent-tool-pre {
  color: var(--agent-error-pre-text);
  background: var(--agent-error-pre-bg);
  border-color: var(--agent-error-pre-border);
}

/* ── Final answer text ── */
.agent-text-content {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.65;
  word-break: break-word;
}

.agent-text-content p {
  margin: 0 0 8px;
}
.agent-text-content p:last-child {
  margin-bottom: 0;
}
.agent-text-content strong {
  font-weight: var(--bold-font-weight);
}
.agent-text-content em {
  font-style: italic;
}
.agent-text-content ul,
.agent-text-content ol {
  margin: 0 0 8px 18px;
  padding: 0;
}
.agent-text-content li {
  margin-bottom: 3px;
}
.agent-text-content h1,
.agent-text-content h2,
.agent-text-content h3 {
  font-weight: var(--bold-font-weight);
  margin: 12px 0 6px;
  font-size: var(--normal-font-size);
}
.agent-text-content table {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-size: var(--subtext-font-size);
  margin: 0;
}
.agent-text-content .table-wrap {
  overflow-x: auto;
  margin: 8px 0;
  border: 1px solid var(--border-faint);
  border-radius: 6px;
}
.agent-text-content th,
.agent-text-content td {
  padding: 6px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-faint);
  white-space: nowrap;
}
.agent-text-content th {
  font-weight: var(--bold-font-weight);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: var(--micro-font-size);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.agent-text-content tr:last-child td {
  border-bottom: none;
}
.agent-text-content tr:hover td {
  background: var(--bg-secondary);
}
.agent-text-content code {
  font-family: "Menlo", "Monaco", "Consolas", monospace;
  font-size: 11px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-faint);
  border-radius: 3px;
  padding: 1px 4px;
}
.agent-text-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-faint);
  border-radius: 6px;
  padding: 10px;
  overflow-x: auto;
  margin: 8px 0;
}
.agent-text-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 11px;
}
.agent-text-content blockquote {
  border-left: 3px solid var(--border-medium);
  margin: 8px 0;
  padding: 4px 12px;
  color: var(--text-secondary);
}
.agent-text-content hr {
  border: none;
  border-top: 1px solid var(--border-faint);
  margin: 10px 0;
}

.agent-error {
  color: #e05252;
  font-size: var(--subtext-font-size);
}

/* Blinking cursor */
.agent-cursor {
  display: inline-block;
  width: 2px;
  height: 13px;
  background: var(--text-muted);
  margin-left: 2px;
  vertical-align: middle;
  animation: agent-blink 0.8s step-end infinite;
}

@keyframes agent-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
@keyframes agent-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Input area ── */
.agent-input-area {
  flex-shrink: 0;
  padding: 0 0 24px;
  position: relative;
  background: var(--bg-primary);
  z-index: 10;
}

.agent-input-area::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  height: 52px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  pointer-events: none;
  z-index: 1;
}

.agent-footer-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 7px;
}

/* ── Custom model picker ── */
.agent-model-picker {
  position: relative;
}

.agent-model-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: none;
  padding: 3px 6px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: var(--subtext-font-size);
  font-family: var(--font-family);
  transition:
    background 0.15s,
    color 0.15s;
}

.agent-model-trigger:hover {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.agent-model-trigger svg {
  opacity: 0.6;
  flex-shrink: 0;
  transition: transform 0.15s;
}

.agent-model-picker.open .agent-model-trigger svg {
  transform: rotate(180deg);
}

.agent-model-dropdown {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 10px;
  padding: 4px;
  box-shadow: 0 8px 24px var(--shadow-lg);
  z-index: 200;
}

.agent-model-picker.open .agent-model-dropdown {
  display: block;
}

.agent-model-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border-radius: 7px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: var(--subtext-font-size);
  font-family: var(--font-family);
  color: var(--text-primary);
  text-align: left;
  transition: background 0.12s;
}

.agent-model-option:hover {
  background: var(--bg-tertiary);
}

.agent-model-option.active {
  font-weight: 500;
}

.agent-model-option .model-check {
  width: 14px;
  flex-shrink: 0;
  opacity: 0;
}

.agent-model-option.active .model-check {
  opacity: 1;
}

.agent-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 14px;
  padding: 9px 10px;
  transition: border-color 0.15s;
}

.agent-input-row:focus-within {
  border-color: var(--border-strong);
}

.agent-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0;
  margin: 0;
  font-family: var(--font-family);
  font-size: var(--normal-font-size);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 24px;
  max-height: 160px;
  overflow-y: auto;
  word-break: break-word;
  white-space: pre-wrap;
}

/* contenteditable placeholder */
.agent-input:empty:before {
  content: attr(data-placeholder);
  color: var(--text-faint);
  pointer-events: none;
}

/* ── Mention chips (in input and in message bubbles) ── */
.agent-mention {
  display: inline-block;
  padding: 2px 6.7px;
  border-radius: 4px;
  user-select: none;
  vertical-align: baseline;
}
.agent-mention--entity {
  background: rgba(0, 0, 0, 0.08);
  color: inherit;
  font-size: inherit;
  border: none;
  cursor: default;
}
#agent-input .agent-mention--entity {
  cursor: pointer;
  transition: background 0.12s;
}
#agent-input .agent-mention--entity:hover {
  background: rgba(0, 0, 0, 0.14);
}

/* ── Input action buttons (@ # and send) ── */
.agent-input-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.agent-mention-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: var(--subtext-font-size);
  font-weight: 600;
  font-family: var(--font-family);
  flex-shrink: 0;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
  padding: 0;
}
.agent-mention-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.agent-send-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--text-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--bg-primary);
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.agent-send-btn:hover {
  opacity: 0.8;
}
.agent-send-btn.loading {
  opacity: 0.4;
  cursor: not-allowed;
}

.agent-input-hint {
  font-size: var(--micro-font-size);
  color: var(--text-faint);
  margin-top: 7px;
  text-align: center;
}

/* ── Saved toggle (conversation-level, in header) ── */
.agent-saved-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 7px;
  background: transparent;
  border: 1px solid var(--border-light);
  cursor: pointer;
  color: var(--text-muted);
  font-size: var(--subtext-font-size);
  font-family: var(--font-family);
  flex-shrink: 0;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.agent-saved-toggle:hover {
  background: var(--bg-active);
  color: var(--text-secondary);
  border-color: var(--border-medium);
}

.agent-saved-toggle.active {
  background: var(--bg-active);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.agent-saved-toggle.active svg {
  color: var(--text-primary);
}

/* ── Artifact panel ── */
.agent-artifact-panel {
  width: 0;
  flex-shrink: 0;
  display: none;
  flex-direction: column;
  border-left: 1px solid var(--border-faint);
  background: var(--bg-primary);
  height: 100vh;
  overflow: hidden;
  position: relative;
}

.agent-artifact-panel.open {
  display: flex;
  width: 640px;
  min-width: 640px;
}

.agent-artifact-resize-handle {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  cursor: col-resize;
  z-index: 10;
  background: transparent;
  transition: background 0.15s;
}

.agent-artifact-resize-handle:hover,
.agent-artifact-resize-handle.dragging {
  background: var(--accent-color, #4f8ef7);
  opacity: 0.5;
}

.agent-artifact-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-faint);
  background: var(--bg-secondary);
  flex-shrink: 0;
  min-height: 38px;
  padding-right: 6px;
}

.agent-artifact-tabs {
  display: flex;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  gap: 0;
}

.agent-artifact-tabs::-webkit-scrollbar {
  display: none;
}

.agent-artifact-tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  height: 38px;
  border-right: 1px solid var(--border-faint);
  cursor: pointer;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: var(--subtext-font-size);
  background: transparent;
  transition:
    background 0.12s,
    color 0.12s;
}

.agent-artifact-tab.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  border-bottom: 2px solid var(--text-primary);
}

.agent-artifact-tab:hover:not(.active) {
  background: var(--bg-active);
}

.agent-artifact-tab-label {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-artifact-tab-close {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-faint);
  padding: 0;
  flex-shrink: 0;
  opacity: 0;
  transition:
    opacity 0.1s,
    background 0.1s;
}

.agent-artifact-tab:hover .agent-artifact-tab-close,
.agent-artifact-tab.active .agent-artifact-tab-close {
  opacity: 1;
}
.agent-artifact-tab-close:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.agent-artifact-open-full {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  flex-shrink: 0;
  transition:
    background 0.12s,
    color 0.12s;
}

.agent-artifact-open-full:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.agent-artifact-close-panel {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  flex-shrink: 0;
  transition:
    background 0.12s,
    color 0.12s;
}

.agent-artifact-close-panel:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.agent-artifact-iframes {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.agent-artifact-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ── Artifact chip (inline in message) ── */
.agent-artifact-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px 6px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-size: var(--subtext-font-size);
  color: var(--text-secondary);
  margin-top: 8px;
  max-width: 100%;
}

.agent-artifact-chip-icon {
  font-size: 13px;
}

.agent-artifact-chip-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
}

.agent-artifact-chip-btn {
  padding: 3px 10px;
  background: var(--bg-active);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  font-size: var(--micro-font-size);
  font-family: var(--font-family);
  color: var(--text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background 0.12s,
    color 0.12s;
}

.agent-artifact-chip-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}