:root {
  --bg: #eef3f9;
  --panel: #ffffff;
  --panel2: #f7f9fc;
  --text: #172033;
  --muted: #64748b;
  --line: #d8e1ec;
  --blue: #2459d3;
  --blue-dark: #173d9e;
  --green: #087f5b;
  --red: #b42318;
  --shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Calibri, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

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

.editor-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.editor-header h1 {
  margin: 2px 0;
  font-size: 25px;
}

.editor-header p {
  margin: 0;
  color: var(--muted);
}

.eyebrow {
  color: var(--blue);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.editor-header-actions,
.footer-actions,
.form-actions,
.selected-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
  text-decoration: none;
}

.button:hover,
.button:focus-visible {
  border-color: var(--blue);
  outline: none;
}

.button.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.button.quiet {
  background: var(--panel2);
}

.button.danger {
  border-color: #efc4c0;
  background: #fff5f4;
  color: var(--red);
}

.editor-shell {
  display: grid;
  grid-template-columns: minmax(360px, 390px) minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
  min-height: calc(100vh - 180px);
}

.editor-sidebar {
  display: grid;
  grid-template-rows: auto minmax(300px, 1fr);
  gap: 14px;
  min-width: 0;
  min-height: 0;
}

.editor-sidebar > *,
.compact-panel,
.collection-controls,
.compact-panel label {
  min-width: 0;
}

.compact-panel select,
.compact-panel input {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.editor-workspace {
  min-width: 0;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 18px;
}

.compact-panel {
  display: grid;
  gap: 8px;
}

label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--text);
  padding: 9px 10px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(36, 89, 211, 0.12);
  outline: none;
}

.collection-controls {
  display: grid;
  gap: 5px;
}

.hidden {
  display: none !important;
}

.item-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  padding: 0;
}

.item-panel-header {
  display: flex;
  flex: 0 0 auto;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 12px 12px 9px;
  border-bottom: 1px solid var(--line);
  background: var(--panel2);
}

.item-panel-header h2 {
  min-width: 0;
  margin: 0;
  font-size: 15px;
}

.item-panel-header .item-count {
  flex: 0 0 auto;
  text-align: right;
  white-space: nowrap;
}

.item-panel-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.item-reload-button {
  min-height: 28px;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--blue-dark);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.item-reload-button:hover,
.item-reload-button:focus-visible {
  border-color: var(--blue);
  outline: none;
}

.item-list {
  display: grid;
  flex: 1 1 auto;
  gap: 10px;
  width: 100%;
  min-width: 0;
  min-height: 280px;
  max-height: calc(100vh - 390px);
  overflow-x: hidden;
  overflow-y: auto;
  padding: 12px 10px 16px;
  align-content: start;
}

.item-button {
  display: grid !important;
  grid-template-rows: max-content minmax(42px, auto);
  gap: 7px;
  width: 100%;
  min-width: 0;
  min-height: 76px;
  max-width: 100%;
  overflow: visible;
  padding: 13px 12px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.03);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}


.item-button.has-status {
  grid-template-rows: auto minmax(42px, auto) auto;
  min-height: 92px;
}

.item-button:hover,
.item-button:focus-visible {
  border-color: var(--blue);
  background: var(--panel2);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--blue) 12%, transparent);
  outline: none;
}

.item-button.active {
  border-color: var(--blue);
  background: #edf4ff;
  box-shadow: inset 4px 0 0 var(--blue);
}

.item-button > * {
  min-width: 0;
  max-width: 100%;
  pointer-events: none;
}

.item-id {
  display: block !important;
  overflow: visible;
  min-height: 22px;
  margin: 0 0 2px;
  padding: 2px 0 3px;
  color: var(--text) !important;
  font-size: 13px !important;
  font-weight: 900 !important;
  line-height: 1.45 !important;
  opacity: 1 !important;
  text-overflow: ellipsis;
  visibility: visible !important;
  white-space: nowrap;
  position: relative;
  z-index: 2;
}

.item-question-wrap {
  position: relative;
  display: block !important;
  min-height: 42px;
  padding-top: 1px;
  overflow: hidden;
  color: var(--text) !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.item-question-fallback,
.item-question-preview {
  display: block;
  max-height: 4.2em;
  overflow: hidden;
  overflow-wrap: anywhere;
  color: var(--text) !important;
  font-size: 12px !important;
  font-weight: 400 !important;
  line-height: 1.4 !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.item-question-preview {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  pointer-events: none;
}

.item-question-wrap.math-ready .item-question-fallback {
  display: none;
}

.item-question-wrap.math-ready .item-question-preview {
  position: static;
  opacity: 1;
}

.item-question-preview mjx-container {
  max-width: 100%;
  margin: 0 0.05em !important;
  overflow: hidden;
  vertical-align: middle;
  font-size: 0.95em !important;
}

.item-question-preview mjx-container[display="true"] {
  display: inline !important;
  margin: 0 !important;
}

.item-question-preview mjx-container,
.item-question-preview mjx-container * {
  pointer-events: none;
}

.item-question-preview mjx-container svg {
  max-width: 100%;
  height: auto;
}

.item-attachment-status {
  display: block !important;
  color: var(--muted) !important;
  font-size: 11px !important;
  line-height: 1.35 !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.item-button small,
.item-count {
  color: var(--muted);
  font-size: 11px;
}

.selected-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 14px;
}

.selected-header h2 {
  margin: 3px 0 7px;
}

.selected-header code,
.attachment-form code {
  border-radius: 6px;
  background: var(--panel2);
  padding: 3px 6px;
}

.field-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.field-tab {
  padding: 9px 16px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 900;
}

.field-tab.active {
  border-bottom-color: var(--blue);
  color: var(--blue);
}

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.preview-grid h3 {
  margin: 0 0 8px;
  font-size: 14px;
}

.content-preview {
  min-height: 170px;
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel2);
  padding: 14px;
}

.content-preview mjx-container {
  max-width: 100%;
  overflow-x: auto;
}

.editor-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.section-title-row h3 {
  margin: 0;
}

.section-title-row p {
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 12px;
}

.count-badge {
  display: grid;
  place-items: center;
  min-width: 30px;
  height: 30px;
  border-radius: 999px;
  background: #edf4ff;
  color: var(--blue);
  font-weight: 900;
}

.attachment-list {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.attachment-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel2);
  padding: 9px;
}

.attachment-row.link-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.attachment-row img {
  display: block;
  width: 58px;
  height: 48px;
  border-radius: 7px;
  background: #fff;
  object-fit: contain;
}

.attachment-row strong,
.attachment-row small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-row small {
  color: var(--muted);
}

.row-actions {
  display: flex;
  gap: 4px;
}

.icon-action {
  width: 31px;
  height: 31px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.icon-action:hover {
  border-color: var(--blue);
}

.attachment-form {
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row.three {
  grid-template-columns: 95px 120px minmax(0, 1fr);
}

.check-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check-label input {
  width: auto;
}

.empty-state {
  min-height: 280px;
  display: grid;
  place-content: center;
  text-align: center;
}

.editor-footer {
  position: sticky;
  bottom: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 12px 20px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  font-size: 12px;
}

.import-button {
  position: relative;
  overflow: hidden;
}

.import-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.editor-toast {
  position: fixed;
  right: 18px;
  bottom: 78px;
  z-index: 50;
  transform: translateY(20px);
  border-radius: 10px;
  background: #172033;
  color: #fff;
  padding: 10px 14px;
  opacity: 0;
  pointer-events: none;
  transition: 0.18s ease;
}

.editor-toast.show {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 1100px) {
  .editor-header,
  .editor-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .editor-shell {
    grid-template-columns: 320px minmax(0, 1fr);
  }

  .editor-columns,
  .preview-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .editor-shell {
    grid-template-columns: 1fr;
  }

  .item-list {
    min-height: 260px;
    max-height: 360px;
  }

  .selected-header {
    flex-direction: column;
  }

  .form-row.three {
    grid-template-columns: 1fr;
  }
}

.image-folder-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel2);
  padding: 10px;
}

.image-folder-panel strong,
.image-folder-panel span {
  display: block;
}

.image-folder-panel span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.image-folder-panel span[data-status="connected"] {
  color: var(--green);
  font-weight: 800;
}

.image-folder-panel span[data-status="warning"] {
  color: #9a6700;
  font-weight: 800;
}

.field-help {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

@media (max-width: 760px) {
  .image-folder-panel {
    grid-template-columns: 1fr;
  }
}

.button.checkin {
  border-color: #087f5b;
  background: #087f5b;
  color: #fff;
}

.button:disabled,
.icon-action:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.working-status {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.working-status[data-status="working"] {
  border-color: #e6b85c;
  background: #fff8e6;
  color: #8a5a00;
}

.live-workflow-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 14px;
  border-color: #b9ccef;
  background: #f6f9ff;
  box-shadow: none;
}

.live-workflow-panel strong,
.live-workflow-panel span {
  display: block;
}

.live-workflow-panel span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.draft-save-status {
  min-width: 260px;
  max-width: 420px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  text-align: right;
  font-weight: 800;
}

.draft-save-status[data-status="connected"],
.draft-save-status[data-status="checked-in"] {
  border-color: #9dd7c5;
  background: #f0fbf7;
  color: var(--green);
}

.draft-save-status[data-status="saving"] {
  border-color: #b9ccef;
  color: var(--blue);
}

.draft-save-status[data-status="warning"] {
  border-color: #eed28f;
  background: #fff9e9;
  color: #8a5a00;
}

@media (max-width: 900px) {
  .live-workflow-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .draft-save-status {
    min-width: 0;
    max-width: none;
    width: 100%;
    text-align: left;
  }
}

.external-file-note {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  margin: 0.75rem 0 1rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line, #d7dde7);
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--panel, #fff) 88%, #e8f3ff 12%);
  font-size: 0.9rem;
  line-height: 1.45;
}

.external-file-note strong {
  white-space: nowrap;
}