/* Basic styles for the see.law v1 viewer.
   The layout follows a three‑pane design with a top bar. */

:root {
  color-scheme: light dark;
  --bg-page: #f4f3ef;
  --bg-panel: rgba(255, 255, 255, 0.74);
  --bg-panel-strong: rgba(255, 255, 255, 0.9);
  --bg-subtle: #ece8df;
  --bg-hover: #f3efe8;
  --bg-active: rgba(47, 95, 143, 0.09);
  --bg-document: #fdfbf7;
  --text-main: #2f2c28;
  --text-muted: #6d655c;
  --text-document: #3f3a34;
  --border: #ddd5ca;
  --accent: #1f5fa8;
  --brand-orange: #c9834a;
  --brand-blue: #2f5f8f;
  --accent-soft: rgba(31, 95, 168, 0.12);
  --shadow: 0 14px 32px rgba(49, 42, 33, 0.06);
  --shadow-soft: 0 8px 18px rgba(49, 42, 33, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #14171c;
    --bg-panel: rgba(28, 33, 40, 0.9);
    --bg-panel-strong: rgba(21, 26, 33, 0.96);
    --bg-subtle: #20252d;
    --bg-hover: #262d37;
    --bg-active: rgba(126, 182, 255, 0.14);
    --bg-document: #171c23;
    --text-main: #ece7df;
    --text-muted: #b6ac9f;
    --text-document: #ece7df;
    --border: #323943;
    --accent: #7eb6ff;
    --brand-orange: #d9a06f;
    --brand-blue: #8ab8e4;
    --accent-soft: rgba(126, 182, 255, 0.16);
    --shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
    --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.18);
  }
}

:root[data-theme='light'] {
  color-scheme: light;
  --bg-page: #f4f3ef;
  --bg-panel: rgba(255, 255, 255, 0.74);
  --bg-panel-strong: rgba(255, 255, 255, 0.9);
  --bg-subtle: #ece8df;
  --bg-hover: #f3efe8;
  --bg-active: rgba(47, 95, 143, 0.09);
  --bg-document: #fdfbf7;
  --text-main: #2f2c28;
  --text-muted: #6d655c;
  --text-document: #3f3a34;
  --border: #ddd5ca;
  --accent: #1f5fa8;
  --brand-orange: #c9834a;
  --brand-blue: #2f5f8f;
  --accent-soft: rgba(31, 95, 168, 0.12);
  --shadow: 0 14px 32px rgba(49, 42, 33, 0.06);
  --shadow-soft: 0 8px 18px rgba(49, 42, 33, 0.05);
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg-page: #14171c;
  --bg-panel: rgba(28, 33, 40, 0.9);
  --bg-panel-strong: rgba(21, 26, 33, 0.96);
  --bg-subtle: #20252d;
  --bg-hover: #262d37;
  --bg-active: rgba(126, 182, 255, 0.14);
  --bg-document: #171c23;
  --text-main: #ece7df;
  --text-muted: #b6ac9f;
  --text-document: #ece7df;
  --border: #323943;
  --accent: #7eb6ff;
  --brand-orange: #d9a06f;
  --brand-blue: #8ab8e4;
  --accent-soft: rgba(126, 182, 255, 0.16);
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.18);
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Iowan Old Style', 'Palatino Linotype', 'Book Antiqua', Georgia,
    'Times New Roman', serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(171, 142, 91, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent 30%),
    var(--bg-page);
}

body {
  color: var(--text-main);
}

button,
input {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

button {
  appearance: none;
}

#root {
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.preload-shell {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  box-sizing: border-box;
}

.preload-shell-inner {
  max-width: 760px;
  padding: 32px 36px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--bg-panel-strong);
  box-shadow: var(--shadow);
}

.preload-shell h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.05;
  color: var(--brand-blue);
}

.preload-shell p {
  margin: 0 0 14px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-document);
}

.preload-shell p:last-child {
  margin-bottom: 0;
}

/* Top bar */
.topbar {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background:
    linear-gradient(135deg, rgba(201, 131, 74, 0.12), transparent 38%),
    radial-gradient(circle at 18% 22%, rgba(201, 131, 74, 0.14), transparent 22%),
    radial-gradient(circle at 82% 28%, rgba(47, 95, 143, 0.14), transparent 24%),
    repeating-linear-gradient(
      120deg,
      rgba(47, 95, 143, 0.05) 0,
      rgba(47, 95, 143, 0.05) 2px,
      transparent 2px,
      transparent 10px
    ),
    var(--bg-panel-strong);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 10;
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.logo {
  font-size: 22px;
  letter-spacing: 0.04em;
  display: flex;
  align-items: baseline;
  gap: 0;
}

.logo-see {
  color: var(--brand-orange);
  font-style: italic;
  font-weight: 600;
}

.logo-dot {
  color: var(--text-main);
  font-style: normal;
  font-weight: 500;
}

.logo-law {
  color: var(--brand-blue);
  font-style: normal;
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-error {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -38px;
  padding: 8px 12px;
  border: 1px solid rgba(188, 74, 47, 0.24);
  border-radius: 10px;
  background: rgba(188, 74, 47, 0.1);
  color: #8d321a;
  font-size: 13px;
  line-height: 1.4;
  box-shadow: var(--shadow-soft);
}

/* Search */
.search-container {
  /* Fixed footprint so growing the textarea doesn't push the topbar
     wider/taller. The textarea inside is absolutely positioned and
     floats above the rest of the topbar when it grows. */
  position: relative;
  width: 300px;
  height: 32px;
  align-self: center;
  z-index: 1000;
  /* Published by the autosize handler in components.js; the dropdown
     anchors to var(--search-input-height) so it always sits below the
     textarea's bottom edge, no matter how many rows it has. */
}

.search-container.expanded {
  z-index: 1100;
  width: 420px;
}

.search-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 32px;
  max-height: 220px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1.35;
  background: var(--bg-document);
  color: var(--text-main);
  /* Textarea-specific: no manual resize handle, soft wrap, vertical
     overflow only when content exceeds max-height. */
  resize: none;
  overflow-y: hidden;
  overflow-x: hidden;
  white-space: pre-wrap;
  word-wrap: break-word;
  box-sizing: border-box;
  transition: width 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.search-container.expanded .search-input {
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.search-input.loading {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent-soft);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-loading-indicator {
  position: absolute;
  top: 7px;
  right: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  pointer-events: none;
  white-space: nowrap;
}

.theme-button,
.action-button {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-document);
  color: var(--text-main);
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease,
    transform 120ms ease;
}

.theme-button {
  padding: 7px 12px;
  font-size: 13px;
}

.action-button {
  padding: 8px 12px;
  font-size: 14px;
}

.theme-button:hover,
.action-button:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.theme-button:active,
.action-button:active {
  transform: translateY(1px);
}

.search-dropdown {
  position: absolute;
  /* Anchored to the live textarea height (set by the autosize handler).
     Falls back to 32px when the var isn't set yet (initial render). */
  top: var(--search-input-height, 32px);
  left: 0;
  right: 0;
  background: var(--bg-panel-strong);
  border: 1px solid var(--border);
  border-top: none;
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.search-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

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

.search-status-row.error {
  color: #8d321a;
  background: rgba(188, 74, 47, 0.08);
}

.search-status-row.error .search-status-text {
  white-space: normal;
  line-height: 1.35;
}

.search-status-text {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-submit-button {
  flex: 0 0 auto;
  padding: 4px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 120ms ease, transform 120ms ease,
    box-shadow 120ms ease;
}

.search-submit-button:hover {
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-submit-button:active {
  transform: translateY(1px);
}

.search-item {
  padding: 8px;
  cursor: pointer;
  font-size: 14px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text-main);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.search-item:hover {
  background-color: var(--bg-hover);
}

.search-item-title {
  font-weight: 600;
  line-height: 1.35;
}

.search-item-meta {
  font-size: 12px;
  line-height: 1.35;
  color: var(--text-muted);
}

/* Natural-language search variant ----------------------------------- */

.search-dropdown.nlsearch {
  max-height: 480px;
}

.search-status-row.nlsearch {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nl-search-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}

.nl-chip {
  font-size: 11px;
  line-height: 1.2;
  padding: 2px 6px;
  border-radius: 10px;
  background: var(--bg-panel);
  color: var(--text-muted);
  border: 1px solid var(--border);
  white-space: nowrap;
}

.nl-chip-court { color: var(--accent); }
.nl-chip-date { color: var(--text-main); }
.nl-chip-anchor { color: var(--accent); font-weight: 600; }
.nl-chip-doctrine { color: var(--text-main); }

.nl-search-item {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  gap: 6px;
}

.nl-search-item:last-child {
  border-bottom: none;
}

.nl-search-item-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.nl-search-item-citecount {
  font-size: 11px;
  color: var(--text-muted);
  flex: 0 0 auto;
}

.nl-search-item-snippet {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-main);
  background: var(--bg-subtle);
  border-left: 2px solid var(--accent);
  padding: 6px 8px;
  border-radius: 2px;
}

.nl-search-item-page {
  font-weight: 600;
  margin-right: 6px;
  color: var(--text-muted);
}

.nl-search-item-badges {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.nl-search-item-badge {
  font-size: 10px;
  line-height: 1.2;
  padding: 1px 5px;
  border-radius: 8px;
  background: var(--bg-panel);
  color: var(--text-muted);
  border: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.nl-badge-dense { color: var(--accent); }
.nl-badge-trigram { color: var(--text-main); }
.nl-badge-anchor_match,
.nl-badge-anchor { color: var(--accent); font-weight: 600; }

/* Main area */
.main {
  flex: 1;
  display: flex;
  overflow: hidden;
  margin-top: 0;
}

/* Left panel (Explorer) */
.left-pane {
  width: 280px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background-color: var(--bg-panel);
  position: relative;
  flex: 0 0 280px;
  backdrop-filter: blur(14px);
}

.left-pane.collapsed {
  width: 0;
  flex-basis: 0;
  border-right: none;
  overflow: hidden;
}

.explorer-header {
  padding: 14px 16px 12px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--brand-blue);
  border-bottom: 1px solid var(--border);
}

.explorer-section {
  border-bottom: 1px solid var(--border);
}

.section-header {
  padding: 10px 14px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--brand-orange);
  background: var(--bg-panel-strong);
  border-bottom: 1px solid var(--border);
}

.open-cases-list,
.outline-tree {
  padding: 4px 0;
}

.cite-option-group,
.cite-builder-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cite-option-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cite-radio-option,
.cite-checkbox-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-main);
}

.cite-meta-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.cite-preview,
.cite-quote-preview {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-document);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.cite-preview.empty,
.cite-quote-preview.empty {
  color: var(--text-muted);
  font-style: italic;
}

.cite-copy-button {
  align-self: flex-start;
}

.case-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.case-context-menu {
  position: fixed;
  z-index: 1001;
  min-width: 190px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-panel-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.case-context-menu-item {
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-main);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.case-context-menu-item:hover {
  background: var(--bg-hover);
}

.case-context-menu-item-label {
  font-weight: 600;
  line-height: 1.35;
}

.case-context-menu-item-description {
  font-size: 12px;
  line-height: 1.35;
  color: var(--text-muted);
}

.case-context-menu-item.destructive {
  color: #9f3f2a;
}

.case-context-menu-divider {
  height: 1px;
  margin: 6px 4px;
  background: var(--border);
}

.case-context-menu-status {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-muted);
}

.selection-context-menu {
  position: fixed;
  z-index: 1002;
  min-width: 230px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-panel-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.selection-context-menu-item {
  padding: 9px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-main);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}

.selection-context-menu-item:hover {
  background: var(--bg-hover);
}

.paragraph::selection,
.paragraph *::selection {
  background: rgba(31, 95, 168, 0.25);
}

:root[data-theme='dark'] .paragraph::selection,
:root[data-theme='dark'] .paragraph *::selection {
  background: rgba(126, 182, 255, 0.30);
}

.citation-options-help {
  margin: 6px 0 12px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-muted);
}

.case-item.active {
  background-color: var(--bg-active);
  border-left-color: var(--brand-blue);
  font-weight: 600;
}

.case-item:hover {
  background-color: var(--bg-hover);
}

.case-item .close-button {
  background: none;
  border: none;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  visibility: hidden;
}

.case-item:hover .close-button {
  visibility: visible;
}

.outline-node {
  padding: 6px 14px;
  cursor: pointer;
  font-size: 13px;
  border-left: 2px solid transparent;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.outline-node:hover {
  background-color: var(--bg-hover);
}

.outline-node.active {
  background-color: var(--bg-active);
  border-left-color: var(--brand-blue);
  font-weight: 600;
}

/* Center pane */
.center-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-document);
  min-width: 0;
  position: relative;
}

.document-tabs {
  min-height: 46px;
  display: flex;
  overflow-x: auto;
  background: var(--bg-panel-strong);
  border-bottom: 1px solid var(--border);
  padding: 0 14px;
  gap: 8px;
  align-items: flex-end;
}

.document-tab {
  padding: 11px 16px 10px;
  cursor: pointer;
  font-size: 14px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  border-radius: 10px 10px 0 0;
  color: var(--brand-blue);
  background: transparent;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

.document-tab:hover {
  background: rgba(47, 95, 143, 0.06);
  color: var(--text-main);
}

.document-tab.active {
  background-color: var(--bg-document);
  border-color: rgba(47, 95, 143, 0.12);
  border-bottom-color: var(--brand-blue);
  color: var(--text-main);
  font-weight: 600;
  box-shadow: var(--shadow-soft);
}

.document-container {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-document);
}

.center-restore-rail {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.document-surface {
  padding: 32px 44px 40px;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  box-sizing: border-box;
  color: var(--text-document);
}

.case-header {
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.case-header-main {
  min-width: 0;
}

.case-cite-button {
  flex: 0 0 auto;
  margin-top: 2px;
}

.case-header h1 {
  margin: 0;
  font-size: 27px;
  line-height: 1.2;
}

.case-header .meta {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

.case-section {
  margin-bottom: 32px;
}

.case-section h2 {
  margin-top: 30px;
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.3;
}

.paragraph {
  margin: 13px 0;
  line-height: 1.74;
  font-size: 16px;
}

.citation {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  background: transparent;
  border: none;
  padding: 0;
  font: inherit;
}

.page-marker {
  color: #16431f;
  margin: 0 0.3em;
  padding: 0 0.2em;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
  .page-marker {
    color: #5aa470;
    background: rgba(255, 255, 255, 0.06);
  }
}

:root[data-theme='dark'] .page-marker {
  color: #5aa470;
  background: rgba(255, 255, 255, 0.06);
}

.citation:hover {
  text-decoration: none;
  background-color: var(--accent-soft);
}

/* Right panel */
.right-pane {
  width: 360px;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background: var(--bg-panel);
  position: relative;
  flex: 0 0 360px;
  backdrop-filter: blur(14px);
}

.right-pane.collapsed {
  width: 0;
  flex-basis: 0;
  border-left: none;
  overflow: hidden;
}

.right-header {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-strong);
  padding: 0 10px;
  gap: 6px;
}

.right-tab {
  flex: 1;
  padding: 12px 10px 11px;
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-orange);
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.right-tab:hover {
  color: var(--text-main);
  background: rgba(201, 131, 74, 0.05);
}

.right-tab.active {
  color: var(--text-main);
  border-bottom-color: var(--brand-orange);
  background: transparent;
}

.right-content {
  flex: 1;
  padding: 18px 18px 22px;
  overflow-y: auto;
}

.citation-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.citation-panel-section {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-panel-strong);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.citation-panel-title {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--brand-orange);
  background: rgba(201, 131, 74, 0.05);
  border-bottom: 1px solid var(--border);
}

.citation-detail,
.citation-options-section .cite-builder {
  padding: 14px;
}

.citation-options-section .cite-builder {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.details h3 {
  margin-top: 0;
}

.citation-detail h3 {
  margin-top: 0;
}

.related-item {
  padding: 8px;
  cursor: pointer;
  color: var(--accent);
  text-decoration: underline;
  font-size: 14px;
  width: 100%;
  border: none;
  background: transparent;
  text-align: left;
}

.related-item:hover {
  background-color: var(--bg-hover);
}

.empty {
  color: var(--text-muted);
  font-style: italic;
  padding: 8px 0;
}

.pane-toggle {
  position: absolute;
  top: 50%;
  width: 24px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-panel-strong);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  z-index: 4;
  box-shadow: var(--shadow-soft);
  transform: translateY(-50%);
}

.pane-toggle:hover {
  color: var(--text-main);
  border-color: var(--accent);
  background: var(--bg-document);
}

.pane-toggle.left {
  right: -13px;
  border-radius: 8px;
}

.pane-toggle.right {
  left: -13px;
  border-radius: 8px;
}

.center-restore-rail .pane-toggle {
  top: 50%;
  pointer-events: auto;
}

.center-restore-rail .pane-toggle.left {
  left: -13px;
  right: auto;
}

.center-restore-rail .pane-toggle.right {
  right: -13px;
  left: auto;
}

@media (max-width: 1100px) {
  .main {
    flex-direction: column;
  }

  .left-pane,
  .right-pane {
    width: 100%;
    flex-basis: auto;
    max-height: 220px;
    border-left: none;
    border-right: none;
  }

  .left-pane.collapsed,
  .right-pane.collapsed {
    width: 100%;
    flex-basis: auto;
    max-height: 0;
    border: none;
  }

  .left-pane {
    border-bottom: 1px solid var(--border);
  }

  .right-pane {
    border-top: 1px solid var(--border);
  }

  .pane-toggle.left,
  .pane-toggle.right,
  .center-restore-rail .pane-toggle.left,
  .center-restore-rail .pane-toggle.right {
    left: auto;
    right: 12px;
    top: 50%;
  }
}

@media (max-width: 700px) {
  .topbar {
    height: auto;
    padding: 12px;
    align-items: stretch;
    gap: 12px;
    flex-direction: column;
  }

  .topbar-error {
    position: static;
  }

  .topbar-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .search-container,
  .search-container.expanded {
    width: 100%;
    height: auto;
  }

  /* On mobile, let the textarea sit in normal flow so the column-stacked
     topbar lays out correctly (no z-index overlay needed here). */
  .search-input {
    position: static;
  }

  .search-dropdown {
    top: 100%;
  }

  .document-surface {
    padding: 22px 18px 32px;
  }

  .case-header {
    flex-direction: column;
    align-items: stretch;
  }

  .case-cite-button {
    align-self: flex-start;
    margin-top: 0;
  }
}