:root {
  --bg: #212121;
  --bg-elevated: #171717;
  --surface: #2f2f2f;
  --surface-2: #3a3a3a;
  --surface-soft: #2a2a2a;
  --border: rgba(255, 255, 255, 0.09);
  --divider: rgba(255, 255, 255, 0.06);
  --text: #ececec;
  --text-muted: #a3a3b3;
  --text-faint: #7a7a8a;
  --accent: #10a37f;
  --accent-strong: #0f8f71;
  --green: #20c997;
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.09);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.24);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-elevated: #ffffff;
  --surface: #f2f2f3;
  --surface-2: #ebebed;
  --surface-soft: #f7f7f8;
  --border: rgba(15, 23, 42, 0.08);
  --divider: rgba(15, 23, 42, 0.05);
  --text: #1f1f1f;
  --text-muted: #5b6070;
  --text-faint: #8c909d;
  --accent: #0f8f71;
  --accent-strong: #0c7a61;
  --green: #0f9f72;
  --error: #dc2626;
  --error-bg: rgba(220, 38, 38, 0.08);
  --shadow-soft: 0 10px 24px rgba(31, 41, 55, 0.08);
  color-scheme: light;
}

[data-theme="dark"] .theme-icon-moon,
[data-theme="light"] .theme-icon-sun {
  display: block;
}

[data-theme="dark"] .theme-icon-sun,
[data-theme="light"] .theme-icon-moon {
  display: none;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Söhne", "Sohne", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button,
input,
select,
textarea {
  font: inherit;
}

.layout {
  --sidebar-width: 256px;
  --sidebar-rail-width: 56px;
  --splitter-width: 8px;
  width: 100%;
  height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) var(--splitter-width) minmax(0, 1fr);
  overflow: hidden;
  background: var(--bg);
  position: relative;
}

/* Sidebar */
.sidebar {
  grid-column: 1;
  background: var(--bg-elevated);
  border-right: 1px solid var(--divider);
  position: relative;
  padding: 0;
  overflow: hidden;
}

.sidebar-expanded {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 10px 12px;
  overflow-y: auto;
  overflow-x: hidden;
  height: 100%;
}

.sidebar-expanded::-webkit-scrollbar {
  width: 6px;
}

.sidebar-expanded::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-expanded::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 999px;
}

.sidebar-rail {
  display: none;
  height: 100%;
  padding: 7px 6px 10px;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}

.sidebar-rail-btn {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.sidebar-rail-btn:hover {
  background: var(--surface-soft);
  color: var(--text);
  transform: translateY(-1px);
}

.sidebar-rail-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.sidebar-rail-btn-primary {
  background: color-mix(in srgb, var(--surface-soft) 80%, transparent);
  border: 1px solid var(--border);
}

.sidebar-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 8px 6px;
}

.sidebar-logo-wrap {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.sidebar-logo {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: rgba(16, 163, 127, 0.12);
  border: 1px solid rgba(16, 163, 127, 0.38);
  flex-shrink: 0;
}

.sidebar-product {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
}

.sidebar-caption {
  margin: 2px 0 0;
  font-size: 0.73rem;
  color: var(--text-faint);
  line-height: 1.2;
}

.sidebar-close-btn {
  display: inline-flex;
}

.sidebar-nav {
  margin: 4px 0 2px;
  padding-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-item {
  width: 100%;
  min-height: 40px;
  border: 0;
  border-radius: 11px;
  padding: 9px 12px;
  background: transparent;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 11px;
  text-align: left;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.35;
  transition: background 0.16s ease, color 0.16s ease;
}

.sidebar-item:hover {
  background: var(--surface);
}

.sidebar-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.sidebar-item-strong {
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.sidebar-item-strong:hover {
  background: var(--surface);
}

.sidebar-icon {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  color: var(--text-muted);
}

.sidebar-section {
  margin-top: 6px;
  padding-top: 7px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-section-toggle {
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  text-align: left;
  padding: 4px 8px;
  cursor: pointer;
}

.sidebar-section-toggle:hover {
  background: var(--surface-soft);
}

.sidebar-section-toggle .sidebar-label {
  margin: 0;
  padding: 0;
}

.section-chevron {
  color: var(--text-faint);
  transition: transform 0.18s ease;
}

.quick-prompts-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quick-prompts-section.quick-prompts-collapsed .quick-prompts-body {
  display: none;
}

.quick-prompts-section.quick-prompts-collapsed .section-chevron {
  transform: rotate(-90deg);
}

.history-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.history-section.history-collapsed .history-body {
  display: none;
}

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

.sidebar-label {
  margin: 5px 0 2px;
  padding: 0 11px;
  color: var(--text-faint);
  font-size: 0.75rem;
  font-weight: 400;
}

.history-section {
  gap: 1px;
}

.history-item {
  gap: 0;
  min-height: 35px;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item:hover {
  color: var(--text);
}

.history-item.active {
  color: var(--text);
  background: var(--surface);
}

.prompt-chip {
  font-size: 0.875rem;
  color: var(--text-muted);
  min-height: 36px;
}

.prompt-chip:hover {
  color: var(--text);
}

.birth-panel {
  margin-top: 6px;
  padding-top: 6px;
}

.birth-panel summary {
  list-style: none;
  user-select: none;
}

.birth-panel summary::-webkit-details-marker {
  display: none;
}

.birth-panel summary::after {
  content: "›";
  margin-left: auto;
  color: var(--text-faint);
  font-size: 1rem;
  transition: transform 0.22s ease;
}

.birth-panel[open] summary::after {
  transform: rotate(90deg);
}

.summary-hint {
  font-size: 0.72rem;
  color: var(--text-faint);
}

.birth-card {
  padding: 8px 10px 4px 41px;
}

.birth-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.birth-grid label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  color: var(--text-faint);
  font-size: 0.67rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-weight: 700;
}

.birth-grid input,
.birth-grid select {
  border: 1px solid var(--border);
  border-radius: 9px;
  min-height: 34px;
  padding: 6px 10px;
  color: var(--text);
  background: var(--surface-soft);
  font-size: 0.84rem;
}

.birth-grid input:focus,
.birth-grid select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16, 163, 127, 0.14);
}

.birth-grid select option {
  color: var(--text);
  background: var(--bg-elevated);
}

.geo-status {
  min-height: 17px;
  margin: 9px 0 0;
  color: var(--text-faint);
  font-size: 0.73rem;
  font-weight: 500;
}

.geo-status.success {
  color: var(--green);
}

.geo-status.error {
  color: var(--error);
}

.geo-status.loading {
  color: var(--accent);
}

.sidebar-footer {
  margin-top: auto;
  padding: 11px 9px 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 31px;
  height: 31px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.73rem;
  font-weight: 700;
  flex-shrink: 0;
}

.user-info {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.user-name {
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-plan {
  font-size: 0.72rem;
  color: var(--text-faint);
}

/* Resize handle */
.resize-handle {
  grid-column: 2;
  width: 100%;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: col-resize;
  position: relative;
  touch-action: none;
}

.resize-handle::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 2px;
  background: transparent;
  transition: background 0.2s ease;
}

.resize-handle:hover::before {
  background: var(--border);
}

body.is-resizing,
body.is-resizing * {
  cursor: col-resize !important;
  user-select: none !important;
}

/* Main area */
.main-panel {
  grid-column: 3;
  min-width: 0;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  position: relative;
  transition: padding-right 0.24s ease;
  background: var(--bg);
}

body.trace-open .main-panel {
  padding-right: 370px;
}

.topbar {
  height: 56px;
  border-bottom: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 16px;
}

.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-wrap {
  position: relative;
}

.topbar-brand-block {
  display: flex;
  align-items: center;
  gap: 5px;
  border: 0;
  background: transparent;
  cursor: pointer;
  border-radius: 9px;
  padding: 5px 7px;
  margin: 0 -7px;
  color: var(--text);
  transition: background 0.15s ease;
}

.topbar-brand-block:hover {
  background: var(--surface);
}

.topbar-title {
  font-size: 1.04rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.topbar-title-caret {
  color: var(--text-faint);
  transition: transform 0.18s ease;
}

.brand-wrap.brand-open .topbar-title-caret {
  transform: rotate(180deg);
}

/* Brand dropdown */
.brand-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 300px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.12);
  padding: 12px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-dropdown.hidden { display: none; }

.brand-dropdown-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 4px 8px;
}

.brand-dd-avatar {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}

.brand-dd-info {
  min-width: 0;
  flex: 1;
}

.brand-dd-name {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-dd-sub {
  margin: 3px 0 0;
  font-size: 0.72rem;
  color: var(--text-faint);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-dd-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.brand-dd-section {
  padding: 4px 0 2px;
}

.brand-dd-label {
  margin: 0 0 6px;
  padding: 0 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panchang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.panchang-cell {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.panchang-k {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.panchang-v {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

.brand-dd-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  border-radius: 10px;
}

.brand-dd-row-icon {
  color: var(--text-faint);
  display: inline-flex;
  align-items: center;
}

.brand-dd-row-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  flex: 1;
}

.brand-dd-row-val {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
}

.brand-chips {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.brand-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 13px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-weight: 400;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.brand-chip:hover {
  background: var(--surface);
  color: var(--text);
}

.brand-chip.brand-chip-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 500;
}

.header-actions {
  gap: 6px;
}

.header-share-btn {
  min-height: 32px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 8px;
  cursor: pointer;
  font-size: 0.94rem;
  font-weight: 500;
}

.header-share-btn:hover {
  background: var(--surface-soft);
}

.chat-menu-wrap {
  position: relative;
}

.header-more-btn {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.header-more-btn:hover {
  background: var(--surface-soft);
}

.chat-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 308px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-elevated);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
  padding: 10px;
  z-index: 24;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chat-menu-item {
  width: 100%;
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 10px 11px;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 400;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.chat-menu-item:hover {
  background: var(--surface-soft);
}

.chat-menu-item-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex-shrink: 0;
}

.chat-menu-item.danger {
  color: #ef4444;
}

.chat-menu-item.danger .chat-menu-item-icon {
  color: #ef4444;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.icon-btn:hover {
  color: var(--text);
  background: var(--surface);
}

.sidebar-toggle-btn {
  display: none;
}

.sidebar-toggle-btn.is-open {
  color: var(--text);
  background: var(--surface-soft);
}

.sidebar-toggle-btn.is-hidden {
  display: none;
}

/* Chat pane */
.chat-main {
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

.chat-main::-webkit-scrollbar {
  width: 7px;
}

.chat-main::-webkit-scrollbar-track {
  background: transparent;
}

.chat-main::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 999px;
}

.empty-state {
  width: min(860px, calc(100% - 54px));
  margin: auto;
  text-align: center;
  padding: 48px 0 54px;
}

.empty-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.67rem;
  font-weight: 700;
  color: var(--text-faint);
}

.empty-title {
  margin: 12px 0 0;
  font-size: clamp(1.8rem, 5vw, 2.25rem);
  line-height: 1.2;
  font-weight: 600;
}

.empty-subtitle {
  margin: 12px auto 30px;
  max-width: 58ch;
  color: var(--text-muted);
  font-size: 0.99rem;
}

.prompt-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.prompt-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  color: var(--text);
  cursor: pointer;
  padding: 15px 16px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.prompt-card:hover {
  transform: translateY(-1px);
  background: var(--surface);
  border-color: color-mix(in srgb, var(--border) 50%, var(--accent));
}

.prompt-card-title {
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
}

.prompt-card-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.messages {
  width: min(840px, calc(100% - 52px));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 26px 0 20px;
}

.message-row {
  width: 100%;
}

.message-shell {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.message-avatar {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-size: 0.73rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, #0fa37f, #0b8c6b);
  margin-top: 2px;
}

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

.message-content {
  color: var(--text);
  line-height: 1.55;
  word-break: break-word;
  font-size: 1rem;
}

.message-meta {
  margin: 7px 0 0;
  font-size: 0.79rem;
  color: var(--text-faint);
  font-weight: 500;
}

.message-row.assistant .message-content {
  font-size: 1rem;
}

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

.message-row.user .message-avatar {
  display: none;
}

.message-row.user .message-body {
  flex: 0 1 auto;
  max-width: min(720px, 84%);
  align-items: flex-end;
}

.message-row.user .message-content {
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  border-bottom-right-radius: 6px;
  background: var(--surface-soft);
  padding: 10px 14px;
}

.message-row.user .message-meta {
  display: none;
}

/* Markdown typography */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
  margin: 1.12em 0 0.45em;
  line-height: 1.35;
  font-weight: 600;
}

.message-content > h1:first-child,
.message-content > h2:first-child,
.message-content > h3:first-child,
.message-content > h4:first-child {
  margin-top: 0;
}

.message-content h1 {
  font-size: 1.32rem;
}

.message-content h2 {
  font-size: 1.15rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 5px;
}

.message-content h3 {
  font-size: 1.04rem;
}

.message-content h4,
.message-content h5,
.message-content h6 {
  font-size: 0.96rem;
  color: var(--text-muted);
}

.message-content p {
  margin: 0 0 0.82em;
}

.message-content p:last-child {
  margin-bottom: 0;
}

.message-content ul,
.message-content ol {
  margin: 0.44em 0 0.82em;
  padding-left: 1.55em;
}

.message-content li {
  margin: 0.32em 0;
}

.message-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.85em;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-soft);
  padding: 0.17em 0.4em;
}

.message-content pre {
  margin: 0.82em 0;
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 12px 15px;
  background: var(--bg-elevated);
  font-size: 0.88rem;
  line-height: 1.65;
  overflow-x: auto;
}

.message-content pre code {
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
  font-size: inherit;
}

.message-content blockquote {
  margin: 0.82em 0;
  padding: 10px 14px;
  border-left: 3px solid var(--accent);
  border-radius: 0 9px 9px 0;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--text-muted);
}

.message-content a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.message-content strong {
  font-weight: 700;
}

.message-content hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 1.15em 0;
}

.message-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 0.82em 0;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: block;
  overflow-x: auto;
}

.message-content th,
.message-content td {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 9px 13px;
  text-align: left;
  min-width: 110px;
}

.message-content th {
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.message-content td:last-child,
.message-content th:last-child {
  border-right: 0;
}

.message-content tr:last-child td {
  border-bottom: 0;
}

.message-content tbody tr:hover td {
  background: var(--surface-soft);
}

/* Composer */
.composer-dock {
  border-top: 0;
  background: var(--bg);
  padding: 12px 20px 14px;
}

.suggestion-panel {
  width: min(840px, 100%);
  margin: 0 auto 9px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-soft) 88%, transparent);
  padding: 11px 12px 10px;
}

.suggestion-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.suggestion-title {
  margin: 0;
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.suggestion-clear-btn {
  border: 0;
  background: transparent;
  color: var(--text-faint);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 6px;
}

.suggestion-clear-btn:hover {
  color: var(--text);
  background: var(--surface-soft);
}

.suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.suggestion-chip {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-radius: 999px;
  min-height: 30px;
  padding: 6px 12px;
  display: inline-flex;
  align-items: center;
  font-size: 0.82rem;
  line-height: 1.35;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.suggestion-chip:hover {
  color: var(--text);
  background: var(--surface-soft);
  border-color: color-mix(in srgb, var(--border) 62%, var(--accent));
}

.suggestion-chip.ask-original {
  border-color: color-mix(in srgb, var(--accent) 68%, var(--border));
  color: var(--accent);
}

.suggestion-chip.ask-original:hover {
  color: #fff;
  background: var(--accent);
}

.composer-container {
  width: min(840px, calc(100% - 44px));
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--bg-elevated);
  box-shadow: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.composer-container:focus-within {
  border-color: color-mix(in srgb, var(--accent) 65%, var(--border));
  box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.14);
}

.composer-input-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.composer-menu-wrap {
  position: relative;
  align-self: center;
}

.composer-icon-btn {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border: 0;
  border-radius: 50%;
  color: var(--text-muted);
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.composer-icon-btn:hover {
  color: var(--text);
  background: var(--surface);
}

.composer-plus-btn {
  border: 1px solid color-mix(in srgb, var(--border) 75%, var(--divider));
  background: color-mix(in srgb, var(--surface-soft) 82%, transparent);
}

.composer-menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: min(280px, calc(100vw - 40px));
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-elevated);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  padding: 6px;
  z-index: 12;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.composer-menu-item {
  width: 100%;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 8px 11px;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.35;
  transition: background 0.16s ease, color 0.16s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.composer-menu-item:hover {
  background: var(--surface-soft);
}

.composer-menu-item.is-active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 11%, transparent);
}

.composer-menu-divider {
  height: 1px;
  margin: 2px 12px;
  background: var(--divider);
}

.composer-menu-item-icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex-shrink: 0;
}

.composer-menu-item.has-chevron .composer-menu-item-end {
  margin-left: auto;
  color: var(--text-faint);
}

.composer-meta-row {
  display: flex;
  align-items: center;
  min-height: 28px;
  padding: 0 4px 2px 4px;
}

.composer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.composer-tag {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.74rem;
  color: var(--text-muted);
  background: var(--surface-soft);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.composer-tag button {
  border: 0;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 0.74rem;
  padding: 0;
}

.composer-tag button:hover {
  color: var(--text);
}

#queryInput {
  min-height: 38px;
  max-height: 180px;
  width: 100%;
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 8px 0;
  resize: none;
  outline: none;
  line-height: 1.45;
  font-size: 1rem;
  font-weight: 400;
  overflow-y: hidden;
  scrollbar-width: none;
}

#queryInput::-webkit-scrollbar {
  display: none;
}

#queryInput::placeholder {
  color: color-mix(in srgb, var(--text-faint) 88%, var(--text-muted));
  font-size: 1rem;
}

#sendBtn {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border: 0;
  border-radius: 50%;
  background: #101010;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

#sendBtn:hover:not([disabled]) {
  opacity: 0.95;
  background: #000000;
}

#sendBtn:active:not([disabled]) {
  transform: scale(0.93);
}

#sendBtn[disabled] {
  opacity: 0.44;
  cursor: wait;
}

.composer-disclaimer {
  width: min(840px, 100%);
  margin: 8px auto 0;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.7rem;
}

.error-banner {
  width: min(840px, 100%);
  margin: 8px auto 0;
  border: 1px solid color-mix(in srgb, var(--error) 55%, transparent);
  border-radius: 10px;
  background: var(--error-bg);
  color: var(--error);
  font-size: 0.84rem;
  font-weight: 500;
  padding: 10px 13px;
}

.hidden {
  display: none;
}

/* Trace panel */
.trace-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 370px;
  height: 100%;
  border-left: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 96%, transparent);
  transform: translateX(105%);
  transition: transform 0.24s ease;
  z-index: 16;
  display: flex;
  flex-direction: column;
}

body.trace-open .trace-panel {
  transform: translateX(0);
}

.trace-panel-header {
  min-height: 58px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 12px 0 14px;
}

.trace-panel-header h3 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
}

.trace-panel-body {
  min-height: 0;
  flex: 1;
  overflow-y: auto;
  padding: 12px 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trace-panel-body::-webkit-scrollbar {
  width: 6px;
}

.trace-panel-body::-webkit-scrollbar-track {
  background: transparent;
}

.trace-panel-body::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 999px;
}

.trace-empty {
  margin: 6px 0 0;
  font-size: 0.86rem;
  color: var(--text-faint);
  line-height: 1.45;
}

.trace-section {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-soft);
  padding: 10px 11px;
}

.trace-section-title {
  margin: 0 0 8px;
  color: var(--text-muted);
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.trace-stage-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.trace-stage-item {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 6px 9px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.trace-stage-item.success {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 45%, var(--border));
  background: color-mix(in srgb, var(--green) 8%, transparent);
}

.trace-stage-item.failed {
  color: var(--error);
  border-color: color-mix(in srgb, var(--error) 45%, var(--border));
  background: color-mix(in srgb, var(--error) 7%, transparent);
}

.trace-kv {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.trace-kv + .trace-kv {
  margin-top: 10px;
}

.trace-kv dt {
  color: var(--text-faint);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.trace-kv dd {
  margin: 0;
  color: var(--text);
  font-size: 0.81rem;
  line-height: 1.45;
}

.trace-tool-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elevated);
  padding: 8px 9px;
}

.trace-tool-card + .trace-tool-card {
  margin-top: 8px;
}

.trace-tool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 7px;
}

.trace-tool-name {
  margin: 0;
  font-size: 0.83rem;
  font-weight: 600;
}

.trace-pill {
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 2px 8px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
}

.trace-pill.ok {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 45%, var(--border));
  background: color-mix(in srgb, var(--green) 9%, transparent);
}

.trace-pill.fail {
  color: var(--error);
  border-color: color-mix(in srgb, var(--error) 45%, var(--border));
  background: color-mix(in srgb, var(--error) 8%, transparent);
}

.trace-tool-meta {
  margin: 0 0 7px;
  color: var(--text-faint);
  font-size: 0.73rem;
}

.trace-pre {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 8px 9px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.74rem;
  line-height: 1.42;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 180px;
  overflow: auto;
}

.trace-overlay {
  display: none;
  position: fixed;
  inset: 0;
  border: 0;
  padding: 0;
  margin: 0;
  background: rgba(0, 0, 0, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 14;
}

/* Thinking */
.thinking-widget {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.thinking-main {
  display: flex;
  align-items: center;
  gap: 10px;
}

.thinking-star {
  font-size: 1.12rem;
  color: var(--accent);
  animation: t-star-pulse 2.2s ease-in-out infinite;
}

@keyframes t-star-pulse {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.58;
  }

  50% {
    transform: scale(1.26) rotate(38deg);
    opacity: 1;
  }
}

.thinking-label {
  color: var(--text-muted);
  font-size: 0.96rem;
  font-weight: 400;
  transition: opacity 0.35s ease;
}

.thinking-label.fading {
  opacity: 0;
}

.thinking-pipeline {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.tp-step {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.67rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-faint);
}

.tp-step.active {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 65%, var(--border));
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.tp-step.done {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 60%, var(--border));
  background: color-mix(in srgb, var(--green) 12%, transparent);
}

.tp-sep {
  color: var(--text-faint);
  font-size: 0.63rem;
}

.message-content span {
  transition: opacity 0.06s ease;
}

/* Charts */
.charts-container {
  margin-top: 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.chart-wrapper {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-elevated);
}

.chart-label {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.67rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.chart-svg,
.chart-img {
  padding: 14px;
}

.chart-svg {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.chart-svg svg,
.chart-img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Mobile sidebar overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  border: 0;
  padding: 0;
  margin: 0;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 15;
}

/* Responsive */
@media (max-width: 1280px) {
  .layout {
    --sidebar-width: 256px;
  }

  .messages,
  .suggestion-panel,
  .composer-container,
  .composer-disclaimer,
  .error-banner,
  .empty-state {
    width: min(820px, calc(100% - 46px));
  }
}

@media (min-width: 1081px) {
  body.sidebar-collapsed .layout {
    grid-template-columns: var(--sidebar-rail-width) 0 minmax(0, 1fr);
  }

  body.sidebar-collapsed .resize-handle {
    display: none;
  }

  body.sidebar-collapsed .sidebar {
    border-right: 1px solid var(--divider);
  }

  body.sidebar-collapsed .sidebar-rail {
    display: flex;
  }

  body.sidebar-collapsed .sidebar-expanded {
    display: none;
  }
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .main-panel {
    grid-column: 1;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(320px, 88vw);
    height: 100vh;
    z-index: 20;
    transform: translateX(-104%);
    transition: transform 0.24s ease;
    box-shadow: 18px 0 28px rgba(0, 0, 0, 0.28);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-expanded {
    display: flex;
  }

  .sidebar-rail {
    display: none !important;
  }

  .resize-handle {
    display: none;
  }

  .sidebar-toggle-btn {
    display: inline-flex;
  }

  .sidebar-close-btn {
    display: inline-flex;
  }

  .sidebar-overlay {
    display: block;
  }

  body.sidebar-open .sidebar-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .messages,
  .suggestion-panel,
  .composer-container,
  .composer-disclaimer,
  .error-banner,
  .empty-state {
    width: calc(100% - 36px);
  }

  body.trace-open .main-panel {
    padding-right: 0;
  }

  .trace-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: min(390px, 92vw);
    height: 100vh;
    z-index: 22;
    transform: translateX(105%);
    box-shadow: -18px 0 26px rgba(0, 0, 0, 0.28);
  }

  .trace-overlay {
    display: block;
  }

  body.trace-open .trace-overlay {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 15px;
  }

  .topbar {
    height: 54px;
    padding: 0 12px;
  }

  .topbar-title {
    font-size: 0.9rem;
  }

  .header-share-btn span {
    display: none;
  }

  .header-share-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
    border-radius: 9px;
    justify-content: center;
    padding: 0;
  }

  .empty-state {
    padding: 34px 0 32px;
  }

  .empty-title {
    font-size: 1.63rem;
  }

  .empty-subtitle {
    font-size: 0.9rem;
    margin-bottom: 22px;
  }

  .prompt-grid {
    grid-template-columns: 1fr;
  }

  .messages {
    gap: 20px;
    padding: 17px 0 12px;
    width: calc(100% - 24px);
  }

  .message-shell {
    gap: 9px;
  }

  .message-avatar {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    font-size: 0.66rem;
    margin-top: 1px;
  }

  .message-row.user .message-body {
    max-width: 92%;
  }

  .composer-dock {
    padding: 10px 12px 12px;
  }

  .composer-container,
  .suggestion-panel,
  .composer-disclaimer,
  .error-banner {
    width: 100%;
  }

  .composer-container {
    border-radius: 21px;
    gap: 6px;
    padding: 7px 8px 7px 9px;
  }

  .composer-icon-btn,
  #sendBtn {
    width: 34px;
    height: 34px;
    min-width: 34px;
  }

  #queryInput {
    min-height: 30px;
    font-size: 0.96rem;
  }
}

@media (max-width: 520px) {
  .sidebar {
    width: 92vw;
  }

  .topbar-right {
    gap: 6px;
  }

  .icon-btn {
    width: 32px;
    height: 32px;
  }

  .empty-kicker {
    letter-spacing: 0.11em;
  }
}