:root {
  color-scheme: light;
  /* Aeonik is declared first to mirror the reference site's intent, but it is
     not served there (or here) so UI text resolves to Inter — exactly what the
     live workbench renders. */
  font-family: Aeonik, Inter, ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* DM Mono drives the logo, the small uppercase labels, and code/inputs. */
  --mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    monospace;

  /* Warm "paper" surfaces */
  --bg: rgb(251, 243, 239);            /* page */
  --bg-raised: rgb(244, 234, 227);     /* cards / panels */
  --bg-input: rgb(234, 223, 214);      /* fields */

  /* Terracotta, low-opacity borders */
  --border: rgba(224, 76, 36, 0.18);
  --border-strong: rgba(224, 76, 36, 0.32);
  --border-hover: rgba(224, 76, 36, 0.32);

  /* Ink */
  --text: rgb(0, 0, 0);
  --text-muted: rgba(0, 0, 0, 0.72);

  /* Terracotta accent — links, active-nav, quota fill, chat prompt */
  --accent: rgb(224, 76, 36);
  --accent-hover: rgb(196, 64, 28);
  --accent-soft: rgba(224, 76, 36, 0.12);   /* active-nav / selected-row tint */

  /* Cool blue-grey focus ring + sage highlight */
  --ring: rgba(116, 177, 193, 0.6);
  --ring-soft: rgba(116, 177, 193, 0.4);
  --sage: rgb(178, 210, 110);

  /* Ink primary button on paper text */
  --btn-bg: rgb(0, 0, 0);
  --btn-text: rgb(251, 243, 239);

  --error: rgb(192, 57, 43);
  --error-soft: rgba(192, 57, 43, 0.1);
  --link: rgb(196, 64, 28);

  /* Theme-aware overlay tints (replace hardcoded rgba in component rules) */
  --overlay: rgba(0, 0, 0, 0.05);
  --overlay-strong: rgba(0, 0, 0, 0.08);

  --radius: 8px;
  --radius-lg: 14px;
}

/* Dark theme — darker tones of the same paper aesthetic (same fonts) */
:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: rgb(28, 24, 22);               /* warm near-black */
  --bg-raised: rgb(38, 33, 30);
  --bg-input: rgb(22, 19, 17);

  --border: rgba(224, 76, 36, 0.28);
  --border-strong: rgba(224, 76, 36, 0.45);
  --border-hover: rgba(224, 76, 36, 0.45);

  --text: rgb(244, 234, 227);
  --text-muted: rgba(244, 234, 227, 0.62);

  --accent: rgb(232, 110, 74);         /* lighter terracotta */
  --accent-hover: rgb(240, 130, 96);
  --accent-soft: rgba(232, 110, 74, 0.18);

  --ring: rgba(116, 177, 193, 0.7);
  --ring-soft: rgba(116, 177, 193, 0.4);

  --btn-bg: rgb(244, 234, 227);        /* invert: light "ink" on dark */
  --btn-text: rgb(28, 24, 22);

  --error: rgb(248, 113, 113);
  --error-soft: rgba(248, 113, 113, 0.12);
  --link: rgb(240, 130, 96);

  --overlay: rgba(255, 255, 255, 0.05);
  --overlay-strong: rgba(255, 255, 255, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}
[hidden] { display: none !important; }
a { color: var(--link); }

/* ---------- Logged-out: centered login ---------- */
.auth-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.auth-card {
  max-width: 28rem;
  text-align: center;
}
.auth-card h1 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  margin: 0 0 0.5rem;
  font-weight: 500;
  letter-spacing: -0.025em;
}
.auth-brand {
  margin: 0 0 1rem;
}
.auth-logo {
  width: 100%;
  max-width: 18rem;
  height: auto;
}
/* Logo art is pure black on transparent — flip it to light in dark theme. */
:root[data-theme="dark"] .auth-logo {
  filter: invert(1);
}
.auth-card p {
  margin: 0.25rem 0 1.5rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---------- Buttons ---------- */
button {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease,
    background 0.15s ease, border-color 0.15s ease;
}
button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.12);
}
button:active { transform: translateY(0); box-shadow: none; }
button:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--ring); }
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
button.secondary {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
}
button.secondary:hover { border-color: var(--border-hover); }

/* ---------- App shell (logged in) ---------- */
.app {
  display: grid;
  grid-template-areas:
    "header header"
    "sidebar main";
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto 1fr;
  height: 100vh;
}
.app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
}
.app-header .brand-link {
  text-decoration: none;
  color: inherit;
}
.app-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.app-header .brand-logo {
  display: block;
  height: 20px;
  width: auto;
}
/* Logo art is pure black on transparent — flip it to light in dark theme. */
:root[data-theme="dark"] .app-header .brand-logo {
  filter: invert(1);
}
.app-header .brand small {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.app-header .profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.app-header .profile .who { color: var(--text-muted); }
.app-header .profile .who strong { color: var(--text); font-weight: 500; }
.app-header .profile .settings-cog {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
}
.app-header .profile .settings-cog:hover {
  color: var(--text);
  background: var(--overlay-strong);
}

/* ---------- Settings page layout ---------- */
.settings {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.5rem;
  max-width: 64rem;
}
.settings-sidenav { display: flex; flex-direction: column; }
.settings-sidenav .section-label {
  padding: 0.5rem 0 0.5rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}
.settings-sidenav a {
  display: block;
  padding: 0.45rem 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
}
.settings-sidenav a:hover {
  color: var(--text);
  background: var(--overlay);
}
.settings-sidenav a.active {
  color: var(--text);
  background: var(--accent-soft);
  border-left-color: var(--accent);
}
.settings-content { max-width: 44rem; }
.settings-content h2 { margin-top: 0; }

/* Admin link in settings sub-nav is hidden unless the user is in admins */
.settings-nav-admin { display: none; }
body.is-admin .settings-nav-admin { display: block; }

/* Account description list */
.account-dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1rem;
  margin: 1rem 0;
}
.account-dl dt {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  align-self: center;
}
.account-dl dd { margin: 0; word-break: break-all; }

.app-sidebar {
  grid-area: sidebar;
  background: var(--bg-raised);
  border-right: 1px solid var(--border);
  padding: 1rem 0;
  overflow-y: auto;
}
.app-sidebar .section-label {
  padding: 0.5rem 1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}
.app-sidebar nav a {
  display: block;
  padding: 0.5rem 1rem 0.5rem 1.5rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
}
.app-sidebar nav a:hover { background: var(--overlay); }
.app-sidebar nav .nav-empty {
  display: block;
  padding: 0.5rem 1rem 0.5rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}
.app-sidebar nav a.active {
  background: var(--accent-soft);
  border-left-color: var(--accent);
  color: var(--text);
}
.app-sidebar .nav-group-label {
  padding: 0.4rem 1rem 0.15rem 1.5rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  margin-top: 0.25rem;
}
.app-sidebar summary.nav-group-label {
  position: relative;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.app-sidebar summary.nav-group-label::-webkit-details-marker { display: none; }
.app-sidebar summary.nav-group-label::before {
  content: "›";
  position: absolute;
  left: 0.55rem;
  top: 50%;
  transform: translateY(-55%);
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  transition: transform 150ms ease;
}
.app-sidebar details.nav-group[open] > summary.nav-group-label::before {
  transform: translateY(-55%) rotate(90deg);
}
.app-sidebar summary.nav-group-label:hover { background: var(--overlay); }
.app-sidebar nav a.nav-child {
  padding-left: 2.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.app-sidebar nav a.nav-child:hover { color: var(--text); }
.app-sidebar nav a.nav-child.active { color: var(--text); }

.app-main {
  grid-area: main;
  padding: 1.5rem 2rem;
  overflow-y: auto;
}
.app-main h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.015em;
}
.app-main .hint {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Welcome card on the home view */
.welcome {
  max-width: 36rem;
  padding: 1.5rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.welcome h2 { margin-top: 0; }
.welcome ul { padding-left: 1.25rem; color: var(--text-muted); }
.welcome ul li { margin: 0.4rem 0; }

/* Home view: My Jobs + Reference Data tables */
.home-section {
  max-width: 56rem;
  margin-top: 2rem;
}
.home-section h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.9rem;
}
.data-table th,
.data-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  background: var(--overlay);
  color: var(--text-muted);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table .muted { color: var(--text-muted); }
.data-table .mono {
  font-family: var(--mono);
  font-size: 0.85rem;
}
.data-table .empty {
  text-align: center;
  color: var(--text-muted);
  padding: 1rem;
}

/* My Jobs: toolbar above table (count + page-size selector) */
.data-page .data-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.data-page .data-toolbar label { color: var(--text-muted); }
.data-page .data-toolbar select {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.4rem;
  margin-left: 0.4rem;
  font-size: 0.85rem;
  font-family: inherit;
}
.data-page .data-toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.data-page .data-toolbar button.pager-btn {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
}
.data-page .data-toolbar button.pager-btn:hover:not(:disabled) {
  background: var(--bg-raised);
}
.data-page .data-toolbar button.pager-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* My Jobs: clickable rows + preview pane */
.data-table tr.clickable { cursor: pointer; }
.data-table tr.clickable:hover { background: var(--overlay); }
.data-table tr.clickable.active {
  background: var(--accent-soft);
}
.data-page { max-width: 64rem; }
.data-page h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}
.job-preview {
  padding: 1rem 1.25rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  min-height: 6rem;
}
.job-preview.muted { color: var(--text-muted); }
.job-preview.error { border-color: var(--error); color: var(--error); }
.preview-dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}
.preview-dl dt {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  align-self: center;
}
.preview-dl dd {
  margin: 0;
  word-break: break-all;
}
.preview-dl .error-text { color: var(--error); }

/* My Data: section header with action button */
.home-section .section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 0 0.5rem;
}
.home-section .section-head h3 { margin: 0; }
.home-section .section-head button { padding: 0.35rem 0.9rem; font-size: 0.85rem; }
.data-table .delete-link {
  color: var(--error);
  text-decoration: none;
}
.data-table .delete-link:hover { text-decoration: underline; }

/* Upload modal form layout */
#dataUploadForm .field { display: block; margin-top: 0.6rem; }
#dataUploadForm input[type="text"],
#dataUploadForm input[type="file"],
#dataUploadForm select,
#dataUploadForm textarea {
  width: 100%;
  margin-top: 0.25rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  font-size: 0.9rem;
}
#dataUploadForm textarea { resize: vertical; }
#dataUploadForm input[type="text"]:focus,
#dataUploadForm select:focus,
#dataUploadForm textarea:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 2px var(--ring-soft);
}

/* Quota meter on My Data */
.quota-meter {
  margin: 0.5rem 0 0.75rem;
}
.quota-meter-track {
  height: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.quota-meter-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s ease;
}
.quota-meter-fill.near-full { background: var(--error); }
.quota-meter-label {
  font-size: 0.78rem;
  margin-top: 0.25rem;
}

/* Tool / workflow view */
.workflow {
  max-width: 48rem;
}
.workflow .field {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.workflow textarea,
.workflow input[type="text"],
.workflow input[type="number"],
.workflow input[type="file"],
.workflow select {
  width: 100%;
  margin-top: 0.25rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.workflow textarea:focus,
.workflow input[type="text"]:focus,
.workflow input[type="number"]:focus,
.workflow select:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 2px var(--ring-soft);
}
.workflow input:disabled,
.workflow select:disabled,
.workflow textarea:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.workflow textarea {
  min-height: 12rem;
  resize: vertical;
}
.workflow .field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.6rem;
  margin-top: 0.75rem;
}
.workflow .field-row .field { margin-top: 0; }
.workflow .arg-group {
  margin: 1rem 0 0;
  padding: 0.6rem 1rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
}
.workflow .arg-group > legend {
  padding: 0 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.01em;
}
.workflow .arg-group .field:first-of-type { margin-top: 0.25rem; }
.workflow .arg-group .field-row:first-of-type { margin-top: 0.25rem; }
.workflow .arg-group.is-inactive .field,
.workflow .arg-group.is-inactive .field-row { opacity: 0.5; }
.workflow .arg-group .field-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--text);
}
.workflow .arg-group .field-checkbox input { margin: 0; }
.workflow details.advanced {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  background: var(--bg-raised);
}
.workflow details.advanced > summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.workflow details.advanced[open] > summary { margin-bottom: 0.25rem; }
.workflow .actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.workflow .status {
  margin-top: 1rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  line-height: 1.5;
}
.workflow .status.error {
  border-color: var(--error);
  color: var(--error);
}

/* Resumed-jobs strip on the SCA tool */
#myscaResumedJobs {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
#myscaResumedJobs:empty { display: none; }
.resumed-job {
  padding: 0.5rem 0.75rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
}
.resumed-job .label {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0.15rem;
}

/* Reference-picker dialog */
.picker-dialog {
  background: var(--bg-raised);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  max-width: 32rem;
  width: 90vw;
}
.picker-dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
.picker-dialog h3 { margin: 0 0 0.5rem; }

/* MCP key reveal — the plaintext value shown once after generation. */
.mcp-key-reveal {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.75rem 0;
  padding: 0.6rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.mcp-key-reveal code {
  flex: 1;
  font-family: var(--mono);
  font-size: 0.82rem;
  word-break: break-all;
  color: var(--text);
}
.mcp-key-reveal button {
  flex: 0 0 auto;
}
.picker-list {
  margin-top: 0.5rem;
  max-height: 60vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.picker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.picker-row .meta { font-size: 0.8rem; color: var(--text-muted); }
.picker-row button { padding: 0.35rem 0.7rem; font-size: 0.85rem; }
.picker-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 1rem;
}

/* Inline "no job selected" row for the prior-job picker (Core tool) */
.prior-job-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.prior-job-row #myscaPriorJobDisplay {
  flex: 1;
  font-size: 0.85rem;
}
.prior-job-row button { padding: 0.35rem 0.7rem; font-size: 0.85rem; }

/* ---------- Home view: inline chat ---------- */
.home-chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 0.75rem;
}
.home-chat-intro { margin: 0; }
.chat-host {
  flex: 1 1 auto;
  display: flex;
  min-height: 0;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* When #chatPanel is relocated into .chat-host, drop the drawer styling
 * (fixed position, slide-in transform, left border + shadow) and let it
 * fill the container as a normal flex child. */
.chat-panel.chat-inline {
  position: relative;
  top: auto;
  right: auto;
  bottom: auto;
  width: 100%;
  max-width: none;
  border-left: none;
  box-shadow: none;
  transform: none !important;
  transition: none;
  flex: 1 1 auto;
}

/* ---------- Assistant chat panel (right-side drawer) ---------- */
.chat-toggle {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 999px;
  padding: 0.6rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  z-index: 49;
}
.chat-toggle:hover { background: var(--accent-hover); }

.chat-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 100vw);
  background: var(--bg);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 50;
  box-shadow: -6px 0 18px rgba(0, 0, 0, 0.35);
  transform: translateX(100%);
  transition: transform 200ms ease;
}
.chat-panel.open { transform: translateX(0); }

.chat-panel-header {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
  flex: 0 0 auto;
}
.chat-panel-title {
  flex: 1;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
}
.chat-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.95rem;
  padding: 0.2rem 0.45rem;
  line-height: 1;
  border-radius: 4px;
}
.chat-icon-btn:hover {
  color: var(--text);
  background: var(--overlay-strong);
  transform: none;
  box-shadow: none;
}

.chat-shell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.5rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-family: var(--mono);
  flex: 0 0 auto;
}
.chat-shell .prompt {
  color: var(--accent);
  user-select: none;
}
.chat-shell input {
  flex: 1;
  background: transparent;
  color: var(--text);
  border: none;
  outline: none;
  font-family: inherit;
  font-size: 0.85rem;
  min-width: 0;
}
.chat-shell input::placeholder { color: var(--text-muted); }

.chat-hint {
  margin: 0 0.75rem 0.75rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: left;
  flex: 0 0 auto;
}

.chat-log {
  flex: 1 1 auto;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.75rem;
  min-height: 0;
}

/* ---------- Past-conversations view (history mode) ---------- */
.chat-history {
  flex: 1 1 auto;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.chat-history-status {
  padding: 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}
.chat-history-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.chat-history-list li {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
}
.chat-history-list li:hover { background: var(--overlay); }
.chat-history-list li.active { background: var(--accent-soft); }
.chat-history-preview {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-history-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.chat-message {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-width: 90%;
}
.chat-message.user {
  background: var(--bg-input);
  align-self: flex-end;
}
.chat-message.assistant {
  background: var(--bg-raised);
  align-self: flex-start;
  /* assistant bubbles hold rendered markdown (real block elements), so
     the pre-wrap used for plain-text user/error bubbles would add stray
     gaps between blocks. Let the elements own their own spacing. */
  white-space: normal;
}
/* ---- Rendered-markdown elements inside assistant bubbles ---- */
.chat-message.assistant > :first-child { margin-top: 0; }
.chat-message.assistant > :last-child { margin-bottom: 0; }
.chat-message.assistant p { margin: 0.5rem 0; }
.chat-message.assistant ul,
.chat-message.assistant ol {
  margin: 0.5rem 0;
  padding-left: 1.4rem;
}
.chat-message.assistant li { margin: 0.15rem 0; }
.chat-message.assistant li > ul,
.chat-message.assistant li > ol { margin: 0.15rem 0; }
.chat-message.assistant h1,
.chat-message.assistant h2,
.chat-message.assistant h3,
.chat-message.assistant h4 {
  margin: 0.75rem 0 0.35rem;
  line-height: 1.25;
  font-weight: 600;
}
.chat-message.assistant h1 { font-size: 1.15rem; }
.chat-message.assistant h2 { font-size: 1.05rem; }
.chat-message.assistant h3 { font-size: 0.95rem; }
.chat-message.assistant h4 { font-size: 0.88rem; }
.chat-message.assistant blockquote {
  margin: 0.5rem 0;
  padding: 0.1rem 0.75rem;
  border-left: 3px solid var(--border-strong);
  color: var(--text-muted);
}
.chat-message.assistant hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.75rem 0;
}
.chat-message.assistant table {
  border-collapse: collapse;
  margin: 0.5rem 0;
  font-size: 0.8rem;
  display: block;
  overflow-x: auto;
}
.chat-message.assistant th,
.chat-message.assistant td {
  border: 1px solid var(--border);
  padding: 0.3rem 0.55rem;
  text-align: left;
}
.chat-message.assistant th {
  background: var(--bg-input);
  font-weight: 600;
}
.chat-message.error {
  background: var(--error-soft);
  border-color: var(--error);
  color: var(--error);
  align-self: flex-start;
}
.chat-message pre {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.5rem 0.65rem;
  margin: 0.35rem 0;
  overflow-x: auto;
  font-size: 0.78rem;
  white-space: pre;
}
.chat-message code {
  font-family: var(--mono);
  font-size: 0.85em;
}
.chat-message :not(pre) > code {
  background: var(--bg-input);
  padding: 0.05em 0.3em;
  border-radius: 3px;
}
.chat-message pre code { display: block; font-size: inherit; }
.chat-message a {
  color: var(--link);
  text-decoration: underline;
}
.chat-message strong { font-weight: 600; }
.chat-message em { font-style: italic; }
/* Tool calls are a collapsed <details> disclosure: de-emphasized by
   default so the prose answer leads, with the full JSON one click away. */
.chat-tool {
  align-self: flex-start;
  max-width: 90%;
  font-size: 0.72rem;
  color: var(--text-muted);
  border-left: 2px solid var(--border-strong);
  margin: 0.05rem 0;
}
.chat-tool > summary {
  cursor: pointer;
  list-style: none;
  padding: 0.15rem 0.5rem;
  font-family: var(--mono);
  user-select: none;
}
.chat-tool > summary::-webkit-details-marker { display: none; }
.chat-tool > summary:hover { color: var(--text); }
.chat-tool[open] { border-left-color: var(--accent); }
.chat-tool.error { border-left-color: var(--error); }
.chat-tool.error > summary { color: var(--error); }
.chat-tool > pre {
  margin: 0.1rem 0 0.3rem;
  padding: 0.35rem 0.6rem;
  background: var(--bg-input);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.7rem;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-x: auto;
}
.chat-pending {
  align-self: flex-start;
  font-size: 0.8rem;
  font-style: italic;
  color: var(--text-muted);
}

.error-banner {
  margin: 1rem auto;
  max-width: 36rem;
  padding: 0.6rem 0.75rem;
  background: var(--error-soft);
  border: 1px solid var(--error);
  color: var(--error);
  border-radius: var(--radius);
  font-size: 0.9rem;
  text-align: center;
}

.srOnly {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}