/* Locke Research — layout extensions on Locke Prime Warm Paper (locke-ui.css + sidebar-standard.css)
   Spacing follows Prime: .content 24/28/48, .page-head 22px below, stack gap 14px, grid gap 12px. */

:root {
  --lr-context-w: 280px;
  --lr-stack-gap: 20px;
  --lr-grid-gap: 16px;
  --lr-form-row-gap: 10px;
  --lr-card-pad-y: 20px;
  --lr-card-pad-x: 22px;
  --lr-card-title-size: 20px;
  --lr-result-body-size: 18px;
  --lr-label-size: 18px;
  --lr-control-size: 18px;
  --lr-mode-btn-size: 18px;
  --lr-hint-size: 17px;
}

/* Research shell — main column (sidebar grid owned by .app in sidebar-standard.css) */
.lr-shell {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100vh;
  overflow: hidden;
}

/* ── Limit banner ── */
.lr-limit-banner {
  flex-shrink: 0;
  padding: 11px 28px;
  font-family: var(--serif);
  font-size: 16px;
  background: var(--gold-soft);
  border-bottom: 1px solid var(--border);
  color: var(--text);
  gap: var(--lr-grid-gap);
}

.lr-limit-banner:not([hidden]) {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lr-limit-banner.critical {
  background: var(--bad-soft);
  color: var(--bad);
}

/* ── Body grid: workspace + context ── */
.lr-body {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--lr-context-w);
  grid-template-areas: "workspace context";
  overflow: hidden;
}

.lr-body.lr-no-context {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "workspace";
}

.lr-body.lr-no-context .lr-context {
  display: none;
}

/* Workspace uses Prime .content padding (24px 28px 48px) from locke-ui.css */
.lr-workspace {
  grid-area: workspace;
  overflow-y: auto;
  min-width: 0;
  min-height: 0;
  background: var(--bg);
}

/* Stack rhythm: page-head bottom margin, then consistent gap between blocks */
.lr-page-head,
.lr-workspace .page-head,
.content > .page-head,
.content > .lr-page-head {
  margin-bottom: 20px;
}

.lr-workspace > * + *,
.content > * + * {
  margin-top: var(--lr-stack-gap);
}

.lr-workspace > .page-head,
.lr-workspace > .lr-page-head,
.content > .page-head,
.content > .lr-page-head {
  margin-top: 0;
}

.lr-workspace > .page-head + *,
.lr-workspace > .lr-page-head + *,
.content > .page-head + *,
.content > .lr-page-head + * {
  margin-top: 0;
}

.lr-context {
  grid-area: context;
  grid-row: 1 / 2;
  background: var(--surface);
  border-left: 1px solid var(--border);
  min-height: 0;
  max-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable;
  display: flex;
  flex-direction: column;
}

.lr-context-scroll {
  flex: 1 0 auto;
  overflow: visible;
  padding: 24px 22px 18px;
  display: flex;
  flex-direction: column;
  gap: var(--lr-stack-gap);
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface) 72%, var(--surface2) 100%);
}

.lr-context-section h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1.1px;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--muted);
}

.lr-context-line {
  margin: 0;
  font-family: var(--serif);
  font-size: 17px;
  color: var(--muted);
  line-height: 1.45;
}

.lr-context-case {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.lr-context-case-name {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  word-break: break-word;
}

.lr-context-case-hint {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.45;
  color: var(--muted);
}

.lr-context-case-switch-label {
  display: block;
  margin: 12px 0 6px;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
}

.lr-context-case-select {
  width: 100%;
  font-size: 17px;
  padding: 10px 12px;
}

.lr-context-case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  align-items: center;
}

/* Case file list rows (My Case Files page) */
.lr-case-file-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.lr-case-file-row:last-child {
  border-bottom: none;
}

.lr-case-file-row-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  word-break: break-word;
}

.lr-case-file-row-hint {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.45;
  color: var(--warn);
}

.lr-case-file-row-desc {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.45;
  color: var(--muted);
}

.lr-case-file-row-meta {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.45;
  color: var(--muted);
}

.lr-case-file-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex-shrink: 0;
}

.lr-case-file-row-main {
  flex: 1;
  min-width: 0;
}

.lr-context-usage {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lr-context-usage-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.4;
  color: var(--muted);
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
}

.lr-context-usage-row strong {
  color: var(--text);
  font-weight: 700;
}

.lr-context-usage-row.warn {
  border-color: var(--warn);
  background: var(--gold-soft);
}

.lr-context-usage-row.critical {
  border-color: var(--bad);
  background: var(--bad-soft);
}

.lr-context-usage-row.critical strong {
  color: var(--bad);
}

.lr-context-dock {
  flex-shrink: 0;
  position: sticky;
  bottom: 0;
  z-index: 1;
  padding: 14px 22px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface2);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lr-context-dock-label {
  font-family: var(--serif);
  font-size: var(--top-card-lbl, 15px);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}

.lr-context-dock-hint {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: var(--lr-hint-size);
  line-height: 1.45;
  color: var(--muted);
}

.lr-context-dock-link {
  display: block;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--ai);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.lr-context-dock-link:hover {
  background: var(--surface3);
  border-color: var(--ai);
  text-decoration: none;
}

.lr-context-empty {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--muted);
  padding: 0;
}

.lr-context-section-compact {
  margin-bottom: 2px;
}

.lr-context-dropdown {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
  overflow: hidden;
}

.lr-context-dropdown-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  user-select: none;
}

.lr-context-dropdown-summary::-webkit-details-marker {
  display: none;
}

.lr-context-dropdown-summary::after {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
  flex-shrink: 0;
  margin-left: 4px;
}

.lr-context-dropdown[open] > .lr-context-dropdown-summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.lr-context-dropdown-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--muted);
}

.lr-context-dropdown-count {
  min-width: 22px;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
}

.lr-context-dropdown-body {
  padding: 0 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lr-context-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  text-align: left;
  cursor: pointer;
  font-family: var(--serif);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.lr-context-item:hover {
  border-color: var(--ai);
  background: var(--surface3);
}

.lr-context-item.active {
  border-color: var(--ai);
  background: rgba(47, 125, 189, 0.08);
}

.lr-context-item-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  word-break: break-word;
}

.lr-context-item-meta {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.35;
}

.lr-field:focus {
  outline: 2px solid rgba(47, 125, 189, 0.25);
  outline-offset: 1px;
  border-color: var(--ai);
}

.lr-case-upload-panel {
  margin-bottom: var(--lr-stack-gap);
}

.lr-case-upload-panel .lr-case-file-select {
  width: 100%;
  max-width: none;
}

/* ── Page head — extends Prime .page-head / .greeting ── */
.lr-page-head h1,
.lr-workspace .page-head h1,
.content > .page-head h1,
.content > .lr-page-head h1 {
  line-height: 1.12;
  margin: 0;
  color: var(--text);
}

.lr-page-head .lr-subtitle,
.lr-workspace .page-head .lr-subtitle,
.lr-workspace .page-head .muted {
  margin-top: 7px;
  line-height: 1.45;
}

/* ── In-card / form stacks (Prime .qa gap 10px, section stack 14px) ── */
.lr-form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--lr-stack-gap);
}

.lr-form-stack-sm {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Cards & panels — Prime .panel / .pbody rhythm ── */
.lr-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--ai);
  border-radius: 10px;
  padding: var(--lr-card-pad-y) var(--lr-card-pad-x) calc(var(--lr-card-pad-y) + 4px);
  box-shadow: var(--shadow-1);
}

.lr-card-title,
.lr-card > h2,
.lr-usage-card h3 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: var(--lr-card-title-size);
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text);
}

.lr-intro-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  padding: var(--lr-card-pad-y) var(--lr-card-pad-x);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
  color: var(--muted);
}

/* ── Form fields ── */
.lr-field {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--serif);
  font-size: var(--lr-control-size);
  line-height: 1.45;
  min-height: 48px;
  background: var(--surface);
  color: var(--text);
}

select.lr-field { padding-right: 36px; }

.lr-field[type="date"] {
  color-scheme: light dark;
  padding-right: 12px;
}

/* Calendar picker — same color token as page titles (.lr-page-head h1 → var(--text)) */
.lr-field[type="date"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 1;
  width: 24px;
  height: 24px;
  margin-left: 6px;
  -webkit-appearance: none;
  appearance: none;
  background-color: var(--text);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cpath d='M16 2v4M8 2v4M3 10h18'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cpath d='M16 2v4M8 2v4M3 10h18'/%3E%3C/svg%3E");
  -webkit-mask-size: 22px 22px;
  mask-size: 22px 22px;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
}

textarea.lr-field {
  min-height: 132px;
  resize: vertical;
  padding-top: 12px;
  padding-bottom: 12px;
}

.lr-label {
  display: block;
  font-family: var(--serif);
  font-size: var(--lr-label-size);
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text);
  line-height: 1.4;
  margin: 0;
}

.lr-form-row {
  display: flex;
  flex-direction: column;
  gap: var(--lr-form-row-gap);
  margin: 0;
}

.lr-form-actions {
  margin-top: 4px;
  padding-top: 6px;
}

.lr-settings-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lr-settings-section > h2 {
  margin: 0;
}

.lr-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--lr-grid-gap);
}

/* ── Mode selector ── */
.lr-mode-selector {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
  background: var(--surface2);
}

.lr-mode-btn {
  padding: 13px 18px;
  font-size: var(--lr-mode-btn-size);
  line-height: 1.35;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-family: var(--serif);
  border-right: 1px solid var(--border);
}

.lr-mode-btn:last-child { border-right: none; }

.lr-mode-btn.active {
  background: var(--surface);
  color: var(--navy);
  box-shadow: var(--shadow-1);
}

.lr-mode-btn.premium::after {
  content: '●';
  font-size: 8px;
  color: var(--gold);
  margin-left: 4px;
  vertical-align: super;
}

.lr-mode-hint {
  font-family: var(--serif);
  font-size: var(--lr-hint-size);
  line-height: 1.5;
  color: var(--warn);
  margin: 0;
}

body[data-content-font-size] .main .lr-label {
  font-size: var(--lr-label-size);
}

body[data-content-font-size] .main .lr-field,
body[data-content-font-size] .main select.lr-field,
body[data-content-font-size] .main textarea.lr-field {
  font-size: var(--lr-control-size);
}

body[data-content-font-size] .main .lr-mode-btn {
  font-size: var(--lr-mode-btn-size);
}

body[data-content-font-size] .main .lr-mode-hint,
body[data-content-font-size] .main .lr-context-dock-hint {
  font-size: var(--lr-hint-size);
}

/* ── Result card — Prime .phead / .pbody ── */
.lr-result {
  border: 1px solid var(--border);
  border-left: 3px solid var(--ai);
  border-radius: 10px;
  background: var(--surface);
  overflow: visible;
  box-shadow: var(--shadow-1);
}

.lr-output-panel {
  min-height: 0;
  max-height: none;
  overflow: visible;
}

.lr-result-header {
  margin: 0;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--lr-card-title-size);
  line-height: 1.35;
  color: var(--text);
}

.lr-result-body {
  padding: var(--lr-card-pad-y) var(--lr-card-pad-x) calc(var(--lr-card-pad-y) + 4px);
  font-family: var(--serif);
  font-size: var(--lr-result-body-size);
  line-height: 1.65;
  white-space: pre-wrap;
  overflow: visible;
  max-height: none;
  word-break: break-word;
}

.lr-result-section {
  margin-top: 0;
  padding: 11px var(--lr-card-pad-x) var(--lr-card-pad-y);
  border-top: 1px solid var(--border);
  font-family: var(--serif);
  font-size: var(--lr-result-body-size);
  line-height: 1.65;
}

.lr-result-section ol,
.lr-result-section ul {
  margin: 0;
  padding-left: 1.35em;
}

.lr-result-section h4 {
  margin: 0 0 7px;
  font-family: var(--serif);
  font-size: var(--top-card-lbl, 15px);
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Sources ── */
.lr-source-list { list-style: none; margin: 0; padding: 0; }

.lr-source-item {
  padding: 11px 0;
  border-bottom: 1px solid var(--surface3);
  font-family: var(--serif);
  font-size: var(--lr-result-body-size);
}

.lr-source-item:last-child { border-bottom: none; }

.lr-source-badge {
  display: inline-block;
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 99px;
  margin-bottom: 4px;
}

.lr-source-badge.verified { background: var(--ok-soft); color: var(--ok); }
.lr-source-badge.citation { background: var(--gold-soft); color: var(--gold); }
.lr-source-badge.general { background: var(--surface2); color: var(--muted); }
.lr-source-badge.document { background: rgba(47, 125, 189, 0.12); color: var(--ai); }

.lr-source-link { color: var(--ai); text-decoration: underline; text-underline-offset: 2px; }
.lr-source-link:hover { text-decoration-thickness: 2px; }

.lr-source-citation {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

/* ── Citation audit banner ── */
.lr-citation-audit {
  font-family: var(--serif);
  font-size: 14px;
  border-radius: 8px;
  padding: 10px 13px;
  margin: 0 0 14px;
  border-left: 3px solid var(--muted);
  background: var(--surface2);
}

.lr-citation-audit.ok {
  border-left-color: var(--ok);
  background: var(--ok-soft);
  color: var(--ok);
}

.lr-citation-audit.warn {
  border-left-color: var(--bad);
  background: var(--bad-soft, rgba(190, 60, 50, 0.10));
  color: var(--bad);
}

.lr-citation-audit-list {
  margin: 6px 0 0;
  padding-left: 20px;
}

.lr-citation-audit-list li { margin: 2px 0; }

/* ── Welcome / quick start — Prime .top-cards / .qgrid ── */
.lr-welcome {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--lr-grid-gap);
}

.lr-welcome-card {
  padding: 18px 18px 16px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-1);
}

.lr-welcome-card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
  text-decoration: none;
}

.lr-welcome-card h3 {
  margin: 0 0 8px;
  line-height: 1.35;
  font-family: var(--serif);
  font-size: var(--card-title, 15px);
  font-weight: 700;
  color: var(--text);
}

.lr-welcome-card p {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--top-card-sub, 16px);
  line-height: 1.45;
  color: var(--muted);
}

/* ── Upload zone ── */
.lr-upload-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 20px 18px;
  background: var(--surface2);
  transition: border-color 0.15s, background 0.15s;
}

.lr-upload-zone.dragover {
  border-color: var(--ai);
  background: rgba(47, 125, 189, 0.08);
}

.lr-upload-zone p { margin: 5px 0; color: var(--muted); font-family: var(--serif); font-size: 18px; }

.lr-upload-zone input[type="file"] { width: 100%; }

/* ── History list ── */
.lr-history-toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: var(--lr-stack-gap);
}

.lr-filter-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.lr-filter-tab {
  padding: 7px 14px;
  font-size: 16px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-family: var(--serif);
  font-weight: 700;
  color: var(--muted);
}

.lr-filter-tab.active {
  background: var(--gold-soft);
  color: var(--text);
  border-color: var(--gold);
}

.lr-history-item {
  display: block;
  border: 1px solid var(--border);
  border-left: 3px solid var(--ai);
  border-radius: 10px;
  padding: 16px 18px;
  background: var(--surface);
  margin-bottom: 10px;
  box-shadow: var(--shadow-1);
}

/* Export / multi-select pick list */
.lr-pick-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: min(360px, 42vh);
  overflow-y: auto;
  padding-right: 2px;
}

.lr-pick-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  cursor: pointer;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.4;
  margin: 0;
}

.lr-pick-item:hover {
  border-color: var(--ai);
  background: var(--surface);
}

.lr-pick-item input[type="checkbox"] {
  flex-shrink: 0;
  margin: 3px 0 0;
  width: 16px;
  height: 16px;
}

.lr-pick-item span {
  flex: 1;
  min-width: 0;
  word-break: break-word;
  color: var(--text);
}

.lr-history-item:last-child { margin-bottom: 0; }

.lr-history-item h4 {
  margin: 0 0 8px;
  line-height: 1.35;
  font-family: var(--serif);
  font-size: var(--top-card-lbl, 15px);
  font-weight: 600;
  color: var(--ai);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.lr-history-item .lr-title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--text);
}

.lr-history-meta {
  font-family: var(--serif);
  font-size: var(--top-card-sub, 16px);
  line-height: 1.45;
  color: var(--muted);
  margin-bottom: 12px;
}

.lr-history-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.lr-recent-row {
  padding: 14px 6px;
  border-bottom: 1px solid var(--surface3);
  font-size: 16px;
  line-height: 1.45;
}

.lr-recent-row:last-child { border-bottom: none; }

.lr-recent-question {
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 6px;
}

.lr-recent-meta {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.4;
}

/* ── Usage page — Prime .top-cards gap ── */
.lr-usage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--lr-grid-gap);
}

.lr-usage-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--ai);
  border-radius: 12px;
  padding: var(--top-card-pad-y, 18px) var(--top-card-pad-x, 20px);
  box-shadow: var(--shadow-1);
}

.lr-usage-bar {
  height: 6px;
  background: var(--surface2);
  border-radius: 99px;
  overflow: hidden;
  margin: 8px 0;
}

.lr-usage-bar-fill {
  height: 100%;
  background: var(--ai);
  border-radius: 99px;
  transition: width 0.3s;
}

.lr-usage-bar-fill.warn { background: var(--warn); }
.lr-usage-bar-fill.critical { background: var(--bad); }

.lr-usage-stats {
  font-family: var(--serif);
  font-size: var(--top-card-sub, 16px);
  color: var(--muted);
}

.lr-usage-stats strong { color: var(--text); }

/* ── Empty state — Prime .empty ── */
.lr-empty {
  padding: 26px 16px 22px;
  text-align: center;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 18px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--surface2);
}

/* ── Theme toggle (login + anywhere outside sidebar) ── */
.lr-theme-corner {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 20;
}

.lr-theme-corner .theme-toggle {
  align-items: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  height: 32px;
  justify-content: center;
  padding: 0;
  width: 32px;
}

.lr-theme-corner .theme-toggle:hover {
  background: var(--surface3);
  color: var(--text);
}

.lr-theme-corner .theme-toggle svg {
  height: 16px;
  stroke: currentColor;
  width: 16px;
}

/* ── Login page (Warm Paper — mirrors Prime login rhythm) ── */
.lr-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: var(--bg);
}

[data-theme="light"] .lr-login-page {
  background: radial-gradient(ellipse at center, #1a1e2e 0%, var(--bg) 70%);
}

[data-theme="dark"] .lr-login-page {
  background: radial-gradient(ellipse at center, #0d1219 0%, var(--bg) 72%);
}

.lr-login-card {
  width: min(520px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-2);
}

.lr-login-hdr {
  background: #17243A;
  color: #fff;
  padding: 28px 28px 22px;
}

.lr-login-hdr .brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.lr-login-hdr .locke {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 32px;
  letter-spacing: -0.6px;
  text-transform: uppercase;
}

.lr-login-hdr .prime {
  font-family: var(--serif);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
}

.lr-login-hdr .lr-login-sub {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.84);
}

.lr-login-body {
  padding: 24px 26px 28px;
}

.lr-login-body #form {
  display: flex;
  flex-direction: column;
  gap: var(--lr-stack-gap);
}

.lr-tabs {
  display: flex;
  gap: 10px;
  margin: 0 0 var(--lr-stack-gap);
}

.lr-tabs .btn { flex: 1; justify-content: center; }

.lr-tabs .btn.active {
  background: var(--gold-soft);
  border-color: var(--gold);
  color: var(--text);
}

.lr-error-msg {
  color: var(--bad);
  font-family: var(--serif);
  font-size: 15px;
  min-height: 1.2em;
  margin-top: 8px;
}

/* ── Settings sections ── */
.lr-settings-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/* Settings body copy — never below .lr-field (16px) */
.lr-settings-note,
.lr-settings-section p {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.45;
  color: var(--muted);
}

.lr-settings-section p {
  margin: 0;
}

.lr-settings-section .lr-settings-billing-detail {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--muted);
}

.lr-settings-account-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.lr-settings-account-email {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.45;
  color: var(--muted);
}

/* Small button helper (uses Prime .btn) */
.btn.sm { padding: 6px 12px; font-size: 15px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .lr-body {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "workspace";
  }
  .lr-context { display: none; }
}

@media (max-width: 768px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  .sidebar.open { transform: translateX(0); }
  .lr-workspace.content { padding-left: 16px; padding-right: 16px; }
  .lr-page-head h1,
  .lr-workspace .page-head h1 { font-size: 32px; }
}