.content-studio-wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 24px 60px;
}

.cs-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.cs-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 4px;
}

.cs-subtitle {
    color: #6b6b6b;
    font-size: 14px;
    margin: 0;
    max-width: 520px;
}

.cs-empty {
    text-align: center;
    padding: 60px 24px;
    color: #6b6b6b;
}

.cs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cs-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: #faf9f7;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 10px;
    padding: 16px 18px;
}

.cs-item-title {
    font-weight: 600;
    font-size: 15px;
    margin: 0 0 4px;
}

.cs-item-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #888;
    flex-wrap: wrap;
}

.cs-item-desc {
    font-size: 13px;
    color: #6b6b6b;
    margin: 6px 0 0;
}

.cs-meta-sep { color: #ccc; }

.cs-item-actions { flex-shrink: 0; }

.cs-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.cs-badge--draft     { background: #FFF3CD; color: #856404; }
.cs-badge--published { background: #D1E7DD; color: #0A3622; }

.cs-editor-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px 60px;
}

.cs-back {
    font-size: 13px;
    color: #888;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 12px;
}
.cs-back:hover { color: #333; }

.cs-editor-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.cs-editor-h1 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    flex-grow: 1;
}

.cs-editor-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cs-save-status {
    font-size: 12px;
    color: #999;
}
.cs-save-status.saving { color: #888; }
.cs-save-status.saved  { color: #2A7E4A; }
.cs-save-status.error  { color: #dc3545; }

.cs-editor-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 20px;
    align-items: start;
}

@media (max-width: 860px) {
    .cs-editor-body { grid-template-columns: 1fr; }
    .cs-sidebar { order: -1; }
}

.cs-section-card {
    background: #faf9f7;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
}

.cs-section-h2 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 14px;
}

.cs-field-row {
    margin-bottom: 14px;
}

.cs-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
}

.cs-required { color: #dc3545; margin-left: 2px; }
.cs-optional { font-weight: 400; color: #999; font-size: 12px; }
.cs-help     { font-size: 13px; color: #6b6b6b; margin: 0 0 12px; }

.cs-field-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 40px;
}

.cs-field-item {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    transition: box-shadow 0.15s;
}
.cs-field-item:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.cs-field-item.dragging { opacity: 0.5; }

.cs-field-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: #f8f7f5;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.cs-field-drag-handle {
    cursor: grab;
    color: #6c757d;
    font-size: 16px;
    flex-shrink: 0;
}

.cs-field-type-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #888;
    flex-shrink: 0;
}

.cs-field-preview-label {
    flex-grow: 1;
    font-size: 13px;
    color: #555;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cs-field-header-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.cs-field-config {
    padding: 14px 16px;
}

.cs-add-field-row {
    margin-top: 10px;
    position: relative;
}

.cs-field-type-picker {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 100;
    min-width: 200px;
}

.cs-type-btn {
    background: none;
    border: none;
    text-align: left;
    padding: 7px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    color: #333;
}
.cs-type-btn:hover { background: #f3f0ec; }

.cs-options-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 4px;
}

.cs-option-row {
    display: flex;
    gap: 8px;
    align-items: center;
}
.cs-option-row .cs-opt-text   { flex: 1; }
.cs-option-row input.cs-opt-weight { width: 120px; flex-shrink: 0; }

.cs-showif-wrap { margin-top: 12px; border-top: 1px solid #eee; padding-top: 12px; }

.cs-showif-row {
    display: grid;
    grid-template-columns: 1fr 140px 1fr;
    gap: 8px;
    margin-top: 6px;
}

.cs-range-row {
    display: grid;
    grid-template-columns: 80px 8px 80px 1fr;
    gap: 8px;
    align-items: start;
    background: #f8f7f5;
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 8px;
}
.cs-range-row textarea { grid-column: 1 / -1; }
.cs-range-row .cs-remove-range { grid-column: 1 / -1; justify-self: end; }
.cs-range-dash { line-height: 38px; text-align: center; color: #999; }

.cs-disclaimer-box {
    background: #FFF3CD;
    border: 1px solid #FFE082;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    margin: 10px 0 14px;
    color: #664D03;
}

.cs-quill-editor {
    min-height: 120px;
    background: #fff;
    border-radius: 0 0 6px 6px;
}
.ql-container { font-family: inherit; font-size: 14px; }
.ql-tooltip { z-index: 500; }
.ql-editor p { margin: 0; padding: 0; }

.tx-inline-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: #888;
    margin-bottom: 6px;
}

.tx-pillars {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.tx-pillar-row,
.modal-body .tx-pillar-row {
    display: flex !important;
    align-items: center !important;
    gap: 7px !important;
    font-size: 13px !important;
    color: #333 !important;
    margin-bottom: 5px !important;
    cursor: pointer;
    font-weight: normal !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.tx-pillar-row input { cursor: pointer; }

.tx-pillar-note {
    font-size: 12px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 10px;
}

.tx-open-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    padding: 8px 12px;
    border: 1.5px dashed rgba(44,95,112,0.4);
    border-radius: 8px;
    background: rgba(44,95,112,0.04);
    color: #2c5f70;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    margin-bottom: 10px;
}
.tx-open-btn:hover {
    background: rgba(44,95,112,0.09);
    border-color: rgba(44,95,112,0.7);
}
.tx-open-btn.tx-open-btn-disabled,
.tx-open-btn[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.tx-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}
.tx-chips:empty { display: none; }

.tx-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1060;
}

.tx-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1061;
    display: flex;
    flex-direction: column;
    width: 780px;
    max-width: 95vw;
    max-height: 88vh;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 48px rgba(0,0,0,0.22);
    overflow: hidden;
}

.tx-modal-hd {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px 16px;
    background: #2c5f70;
    color: #fff;
    flex-shrink: 0;
}

.tx-modal-title {
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 4px;
    color: #fff;
}

.tx-modal-sub {
    font-size: 13px;
    margin: 0;
    color: rgba(255,255,255,0.78);
    line-height: 1.4;
}

.tx-modal-close {
    background: rgba(255,255,255,0.15);
    border: none;
    border-radius: 50%;
    color: #fff;
    width: 30px;
    height: 30px;
    font-size: 14px;
    cursor: pointer;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    margin-top: 2px;
}
.tx-modal-close:hover { background: rgba(255,255,255,0.28); }

.tx-modal-filter-row {
    padding: 12px 24px 10px;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    flex-shrink: 0;
    background: #faf9f7;
}

.tx-filter { font-size: 13px; }

.tx-modal-bd {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px;
}

.tx-scroll {
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.tx-col { flex: 1; min-width: 0; }

.tx-col-hd {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #2c5f70;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid #2c5f70;
}

.tx-domain-hd {
    font-size: 11px;
    font-weight: 600;
    color: #666;
    margin: 12px 0 5px;
    padding-left: 1px;
}
.tx-domain-hd:first-of-type { margin-top: 0; }

.tx-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 2px;
}

.tx-pill {
    display: inline-block;
    padding: 4px 11px;
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.15);
    background: #fff;
    color: #333;
    font-size: 12px;
    line-height: 1.4;
    cursor: pointer;
    transition: background 0.1s, color 0.1s, border-color 0.1s;
    text-align: left;
}
.tx-pill:hover { border-color: #2c5f70; color: #2c5f70; }
.tx-pill.tx-pill-on { background: #2c5f70; color: #fff; border-color: #2c5f70; }

.tx-modal-ft {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 24px;
    border-top: 1px solid rgba(0,0,0,0.08);
    background: #faf9f7;
    flex-shrink: 0;
}

.tx-modal-tally {
    font-size: 13px;
    color: #666;
    font-style: italic;
}

.cs-tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #EBF5F8;
    color: #2c5f70;
    border-radius: 20px;
    padding: 3px 10px 3px 12px;
    font-size: 12px;
    font-weight: 500;
}
.cs-chip-remove {
    background: none;
    border: none;
    color: #2c5f70;
    cursor: pointer;
    font-size: 11px;
    padding: 0;
    line-height: 1;
    opacity: 0.6;
}
.cs-chip-remove:hover { opacity: 1; }

.cs-image-preview { margin-top: 6px; }

[data-scheme] .cs-chapter-header {
    background: var(--cs-chapter-bg) !important;
    color: var(--cs-chapter-fg) !important;
}
[data-scheme] .cs-chapter-title-input {
    color: var(--cs-chapter-fg) !important;
    background: transparent !important;
}
[data-scheme] .cs-chapter-title-input::placeholder { color: var(--cs-chapter-fg); opacity: 0.6; }
[data-scheme] .cs-chapter-toggle,
[data-scheme] .cs-remove-chapter { color: var(--cs-chapter-fg) !important; opacity: 0.8; }
[data-scheme] .cs-chapter-meta { color: var(--cs-chapter-fg) !important; opacity: 0.7; }

[data-scheme] .cs-section-header {
    background: var(--cs-section-bg);
    color: var(--cs-section-fg);
    padding: 6px 10px;
    border-radius: 6px;
    margin-bottom: 8px;
}
[data-scheme] .cs-section-title-input {
    border-color: var(--cs-accent);
    background: rgba(255,255,255,0.55);
}

.cs-canvas--assessment[data-scheme] .cs-section-header {
    background: var(--cs-chapter-bg);
    color: var(--cs-chapter-fg);
}
.cs-canvas--assessment[data-scheme] .cs-section-title-input {
    color: var(--cs-chapter-fg);
    border-color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.2);
}
.cs-canvas--assessment[data-scheme] .cs-section-title-input::placeholder {
    color: var(--cs-chapter-fg);
    opacity: 0.6;
}
.cs-canvas--assessment[data-scheme] .cs-section-header .cs-section-num,
.cs-canvas--assessment[data-scheme] .cs-section-header .cs-field-drag-handle,
.cs-canvas--assessment[data-scheme] .cs-section-header .cs-section-preview-btn,
.cs-canvas--assessment[data-scheme] .cs-section-header .cs-unnumbered-label {
    color: var(--cs-chapter-fg) !important;
    opacity: 0.85;
}
.cs-canvas--assessment[data-scheme] .cs-section-header .cs-remove-section {
    color: rgba(255,220,220,0.9) !important;
}

.cs-meta-card { overflow: hidden; }

.cs-meta-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.cs-meta-header:hover { background: rgba(0,0,0,0.02); }
.cs-meta-toggle-icon { font-size: 11px; color: #888; flex-shrink: 0; }
.cs-meta-summary { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#metaBody { padding: 0 16px 8px; }

.cs-chapter-block {
    border: 1.5px solid rgba(0,0,0,0.1);
    border-radius: 10px;
    margin-bottom: 16px;
    cursor: default;
    transition: box-shadow 0.15s;
}
.cs-chapter-block.cs-dragging {
    opacity: 0.55;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
}
.cs-chapter-block[draggable="true"] { cursor: grabbing; }

.cs-chapter-body {  }

.cs-chapter-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: #F0EDF8;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    border-radius: 9px 9px 0 0;
}

.cs-chapter-drag-handle {
    font-size: 18px;
    color: #6c757d;
    cursor: grab;
    flex-shrink: 0;
    line-height: 1;
    padding: 0 2px;
    user-select: none;
}
.cs-chapter-drag-handle:hover { color: #666; }

.cs-chapter-toggle {
    background: none;
    border: none;
    font-size: 13px;
    color: #666;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    line-height: 1;
    width: 20px;
    text-align: center;
}

.cs-chapter-title-input {
    flex-grow: 1;
    font-weight: 600;
    background: transparent;
    border: none;
    font-size: 14px;
}
.cs-chapter-title-input:focus { background: #fff; border-color: #c0c0c0; }

.cs-chapter-meta {
    font-size: 11px;
    color: #888;
    white-space: nowrap;
    flex-shrink: 0;
}

.cs-chapter-num {
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background: #6c757d;
    border-radius: 3px;
    padding: 1px 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

.cs-section-num {
    font-size: 11px;
    font-weight: 700;
    color: #555;
    background: #e9ecef;
    border-radius: 3px;
    padding: 1px 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

.cs-section-block {
    border-top: 1px solid rgba(0,0,0,0.06);
    padding: 12px 14px;
}
.cs-section-block.cs-section-added {
    animation: cs-section-flash 1s ease-out;
}
@keyframes cs-section-flash {
    0%   { background: rgba(78, 110, 144, 0.12); }
    100% { background: transparent; }
}

.cs-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.cs-section-title-input {
    flex-grow: 1;
    font-size: 13px;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 4px 8px;
}

.cs-field-item {
    background: #fafafa;
    border: 1px solid #e8e8e8;
    border-radius: 7px;
    margin-bottom: 8px;
    transition: box-shadow 0.12s;
}
.cs-field-item.cs-dragging {
    opacity: 0.5;
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.cs-field-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: default;
}

.cs-field-drag-handle {
    font-size: 16px;
    color: #bbb;
    cursor: grab;
    user-select: none;
    flex-shrink: 0;
}
.cs-field-drag-handle:hover { color: #777; }

.cs-field-type-label {
    font-size: 11px;
    font-weight: 600;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.cs-field-preview-label {
    font-size: 13px;
    color: #444;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cs-field-header-actions .btn-link {
    font-size: 12px;
    text-decoration: none;
}

.cs-field-config {
    padding: 10px 14px 12px;
    border-top: 1px solid #eee;
}

.cs-question-add-wrap { position: relative; }

.cs-question-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 200;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    min-width: 180px;
    padding: 4px 0;
    margin-top: 4px;
}

.cs-qmenu-item {
    display: block;
    width: 100%;
    padding: 8px 16px;
    text-align: left;
    background: none;
    border: none;
    font-size: 13px;
    color: #333;
    cursor: pointer;
    transition: background 0.1s;
}
.cs-qmenu-item:hover { background: #f0f0f0; }

.cs-options-list { margin-top: 8px; }

.cs-option-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}
.cs-option-row .cs-opt-text { flex: 1; }

.cs-add-chapter-btn,
.cs-add-section-btn { font-size: 13px; }

.cs-meeting-link-row {
    background: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: 7px;
    padding: 8px 12px;
    margin-bottom: 8px;
}
.cs-meeting-link-name { font-size: 13px; font-weight: 500; }
.cs-meeting-link-dates { margin-top: 2px; font-size: 11px; }

.cs-unnumbered-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: #888;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    flex-shrink: 0;
}
.cs-unnumbered-label input[type="checkbox"] {
    width: 12px;
    height: 12px;
    cursor: pointer;
    flex-shrink: 0;
}

.cs-section-preview-btn {
    font-size: 12px;
    color: #4A8FA3;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}
.cs-section-preview-btn:hover { color: #2c5f70; text-decoration: underline; }

.cs-outline-panel {
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 14px;
    max-height: 320px;
    overflow-y: auto;
}

.cs-outline-chapter {
    font-size: 13px;
    font-weight: 600;
    color: #333;
    padding: 4px 0 2px;
    border-top: 1px solid rgba(0,0,0,0.06);
    margin-top: 4px;
}
.cs-outline-chapter:first-child { margin-top: 0; border-top: none; }

.cs-outline-section {
    font-size: 12px;
    color: #666;
    padding: 2px 0 2px 14px;
}

.cs-preview-modal {
    position: fixed;
    inset: 0;
    z-index: 1060;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cs-preview-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.cs-preview-modal-dialog {
    position: relative;
    background: #fff;
    border-radius: 12px;
    width: 680px;
    max-width: calc(100vw - 32px);
    max-height: calc(100vh - 80px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 40px rgba(0,0,0,0.22);
}

.cs-preview-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px 14px;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    flex-shrink: 0;
    background: var(--cs-chapter-bg, #2c5f70);
    color: var(--cs-chapter-fg, #fff);
    border-radius: 11px 11px 0 0;
}

.cs-preview-modal-chapter {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.75;
    margin: 0 0 2px;
    color: inherit;
}

.cs-preview-modal-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    color: inherit;
}

.cs-preview-modal-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}
.cs-preview-modal-close:hover { opacity: 1; }

.cs-preview-modal-body {
    overflow-y: auto;
    padding: 20px;
    background: var(--cs-page-bg, #fff);
    flex: 1;
}

[data-scheme] .cs-preview-modal-body .wb-text-block {
    background: var(--cs-section-bg);
    color: var(--cs-section-fg);
    border-left-color: var(--cs-accent);
}

.cs-cover-url-preview {
    display: block;
    max-height: 200px;
    max-width: 100%;
    border-radius: 8px;
    margin-top: 8px;
    object-fit: contain;
}

.cs-book-panel {
    background: #FDF6EC;
    border: 1px solid #F0D9A0;
    border-radius: 8px;
    padding: 14px;
    margin-top: 8px;
}

@media (max-width: 860px) {
    
    .cs-editor-body {
        grid-template-columns: minmax(0, 1fr);
    }
    .cs-sidebar {
        order: 2;   
    }
    .cs-canvas {
        order: 1;
    }
}

@media (max-width: 640px) {
    .cs-editor-wrap    { padding: 12px 12px 60px; }
    .cs-content-studio-wrap { padding: 16px 12px 60px; }

    .cs-showif-row     { grid-template-columns: 1fr; }

    .cs-range-row      { grid-template-columns: 1fr 1fr; }
    .cs-range-row textarea { grid-column: 1 / -1; }

    .cs-option-row input.cs-opt-weight { width: 80px; }

    .cs-editor-title-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .cs-editor-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .cs-field-type-picker {
        min-width: 160px;
    }

    .cs-item {
        flex-direction: column;
        align-items: flex-start;
    }
    .cs-item-actions {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        width: 100%;
        padding-top: 8px;
        border-top: 1px solid #f0ece6;
    }

    .cs-chapter-block,
    .cs-section-block {
        overflow: visible;
    }
}

.cs-scheme-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 6px;
}
.cs-scheme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 8px;
    border: 2px solid transparent;
    transition: border-color 0.15s;
    font-size: 0.75rem;
    color: #555;
}
.cs-scheme-option:hover { border-color: #aaa; }
.cs-scheme-option.selected { border-color: #4A8FA3; background: #f0f8fb; }
.cs-scheme-swatch {
    width: 44px;
    height: 44px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}
.cs-scheme-swatch--none {
    background: #f0f0f0;
    border: 2px solid #ccc;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 13px;
    font-weight: 600;
}
.cs-scheme-swatch--bands {
    display: flex;
    flex-direction: column;
    border: 1.5px solid rgba(0,0,0,0.1);
}
.cs-band { flex: 1; }
.cs-band--chapter { flex: 0 0 34%; }
.cs-band--section { flex: 0 0 33%; }
.cs-band--page    { flex: 0 0 33%; }

.cs-cover-tabs {
    display: flex;
    gap: 0;
    border: 1px solid #ddd;
    border-radius: 6px;
    overflow: hidden;
    width: fit-content;
}
.cs-cover-tab {
    background: #f8f8f8;
    border: none;
    padding: 5px 14px;
    font-size: 13px;
    cursor: pointer;
    color: #555;
    transition: background 0.12s;
}
.cs-cover-tab + .cs-cover-tab { border-left: 1px solid #ddd; }
.cs-cover-tab.active { background: #fff; color: #1a1a1a; font-weight: 600; }
.cs-cover-tab:hover:not(.active) { background: #efefef; }

.cs-cover-upload-zone {
    border: 2px dashed #ccc;
    border-radius: 10px;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: border-color 0.15s, background 0.15s;
}
.cs-cover-upload-zone:hover,
.cs-cover-upload-zone.dragover {
    border-color: #4A8FA3;
    background: #f0f8fb;
}
.cs-cover-upload-zone.uploading { opacity: 0.6; cursor: wait; }
.cs-cover-upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 20px;
    text-align: center;
}
.cs-cover-preview-img {
    max-height: 200px;
    max-width: 100%;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
    object-fit: contain;
    padding: 8px;
}

.cs-image-upload-zone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    min-height: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    padding: 12px;
}
.cs-image-upload-zone:hover,
.cs-image-upload-zone.dragover {
    border-color: #4A8FA3;
    background: #f0f8fb;
}
.cs-img-preview-wrap { text-align: center; }
.cs-img-preview-thumb {
    max-width: 100%;
    max-height: 150px;
    border-radius: 6px;
    object-fit: contain;
}
.cs-img-upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-align: center;
}

#whatToBringWrap .ql-container { min-height: 80px; }

.cs-date-checkboxes {
    max-height: 220px;
    overflow-y: auto;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 8px 12px;
    background: #fafafa;
}
.cs-date-checkboxes .form-check { margin-bottom: 4px; }

[data-scheme].wb-section {
    background: #fff;
    border-radius: 10px;
    padding: 0 0 24px;
}

[data-scheme] .wb-chapter-label {
    background: var(--cs-chapter-bg);
    color: var(--cs-chapter-fg);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 8px 24px;
    margin: 0;
    border-radius: 10px 10px 0 0;
}

[data-scheme] .at-section-header {
    background: var(--cs-chapter-bg);
    color: var(--cs-chapter-fg);
}

[data-scheme] .wb-section-header {
    margin-bottom: 0;
}

[data-scheme] .wb-section-title-row {
    background: var(--cs-section-bg);
    padding: 12px 24px 10px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--cs-accent);
}

[data-scheme] .wb-section-title {
    color: var(--cs-section-fg);
    font-size: 20px;
    font-weight: 700;
    margin: 0;
}

[data-scheme] .at-label {
    color: var(--cs-accent);
    font-weight: 600;
}

[data-scheme] .wb-text-block {
    border-left: 3px solid var(--cs-accent);
    padding-left: 14px;
    margin-bottom: 20px;
    color: #333;
}

[data-scheme] .wb-text-block,
[data-scheme] .at-text-block,
[data-scheme] .ql-editor,
[data-scheme] .cs-theme-sample {
    font-family: var(--cs-body-font, inherit);
}
[data-scheme] .wb-text-block h1, [data-scheme] .at-text-block h1, [data-scheme] .ql-editor h1,
[data-scheme] .wb-text-block h2, [data-scheme] .at-text-block h2, [data-scheme] .ql-editor h2,
[data-scheme] .wb-text-block h3, [data-scheme] .at-text-block h3, [data-scheme] .ql-editor h3,
[data-scheme] .cs-theme-sample h1, [data-scheme] .cs-theme-sample h2, [data-scheme] .cs-theme-sample h3,
[data-scheme] .wb-chapter-label, [data-scheme] .at-section-header,
[data-scheme] .wb-section-title, [data-scheme] .cs-chapter-title-input,
[data-scheme] .cs-section-title-input {
    font-family: var(--cs-heading-font, inherit);
}

[data-scheme] .wb-text-block h1, [data-scheme] .at-text-block h1, [data-scheme] .ql-editor h1,
[data-scheme] .cs-theme-sample h1 { color: var(--cs-h1); }
[data-scheme] .wb-text-block h2, [data-scheme] .at-text-block h2, [data-scheme] .ql-editor h2,
[data-scheme] .cs-theme-sample h2 { color: var(--cs-h2); }
[data-scheme] .wb-text-block h3, [data-scheme] .at-text-block h3, [data-scheme] .ql-editor h3,
[data-scheme] .cs-theme-sample h3 {
    color: var(--cs-h3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.95em;
}

[data-scheme] .wb-text-block a, [data-scheme] .at-text-block a,
[data-scheme] .ql-editor a, [data-scheme] .cs-theme-sample a {
    color: var(--cs-link);
    text-decoration-color: var(--cs-quote-border);
}
[data-scheme] .wb-text-block a:hover, [data-scheme] .at-text-block a:hover,
[data-scheme] .ql-editor a:hover, [data-scheme] .cs-theme-sample a:hover {
    color: var(--cs-link-hover);
}

[data-scheme] .wb-text-block blockquote, [data-scheme] .at-text-block blockquote,
[data-scheme] .ql-editor blockquote, [data-scheme] .cs-theme-sample blockquote {
    border-left: 3px solid var(--cs-quote-border);
    color: var(--cs-quote-text);
    font-style: italic;
    margin: 1em 0;
    padding: 0.2em 0 0.2em 1em;
}

[data-scheme] .wb-text-block table, [data-scheme] .at-text-block table,
[data-scheme] .ql-editor table, [data-scheme] .cs-theme-sample table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
    font-size: 0.95em;
}
[data-scheme] .wb-text-block th, [data-scheme] .at-text-block th,
[data-scheme] .ql-editor th, [data-scheme] .cs-theme-sample th {
    background: var(--cs-table-head-bg);
    color: var(--cs-table-head-fg);
    font-weight: 700;
    text-align: left;
    padding: 8px 10px;
    border: 1px solid var(--cs-table-border);
}
[data-scheme] .wb-text-block td, [data-scheme] .at-text-block td,
[data-scheme] .ql-editor td, [data-scheme] .cs-theme-sample td {
    padding: 8px 10px;
    border: 1px solid var(--cs-table-border);
}
[data-scheme] .wb-text-block tbody tr:nth-child(even) td,
[data-scheme] .at-text-block tbody tr:nth-child(even) td,
[data-scheme] .ql-editor tbody tr:nth-child(even) td,
[data-scheme] .cs-theme-sample tbody tr:nth-child(even) td {
    background: var(--cs-table-zebra);
}

[data-scheme] .wb-text-block pre, [data-scheme] .at-text-block pre,
[data-scheme] .ql-editor pre, [data-scheme] .cs-theme-sample pre,
[data-scheme] .wb-text-block .ql-code-block-container,
[data-scheme] .at-text-block .ql-code-block-container,
[data-scheme] .ql-editor .ql-code-block-container {
    background: var(--cs-code-bg);
    border: 1px solid var(--cs-code-border);
    border-radius: 6px;
    padding: 12px 14px;
    margin: 1em 0;
    font-family: var(--cs-mono-font);
    font-size: 0.88em;
    line-height: 1.5;
    color: #33383f;
    overflow-x: auto;
    white-space: pre;
}
[data-scheme] .hljs-keyword, [data-scheme] .hljs-selector-tag,
[data-scheme] .hljs-built_in, [data-scheme] .hljs-tag { color: var(--cs-code-keyword); }
[data-scheme] .hljs-title, [data-scheme] .hljs-title.function_,
[data-scheme] .hljs-section, [data-scheme] .hljs-name { color: var(--cs-code-function); }
[data-scheme] .hljs-string, [data-scheme] .hljs-attr,
[data-scheme] .hljs-attribute, [data-scheme] .hljs-regexp { color: var(--cs-code-string); }
[data-scheme] .hljs-number, [data-scheme] .hljs-literal,
[data-scheme] .hljs-symbol { color: var(--cs-code-number); }
[data-scheme] .hljs-comment, [data-scheme] .hljs-quote { color: var(--cs-code-comment); font-style: italic; }

.wb-text-block img {
    max-width: 100%;
    height: auto;
    display: block;
}

[data-scheme] .wb-field-list {
    padding: 0 24px;
}

[data-scheme] .wb-progress-fill {
    background: var(--cs-accent);
}

[data-scheme] .wb-section-nav {
    padding: 0 24px;
}

[data-scheme] .cs-view-section-header {
    background: var(--cs-section-bg);
    color: var(--cs-section-fg);
    border-left: 4px solid var(--cs-accent);
    padding: 8px 14px;
    border-radius: 4px;
    margin-bottom: 14px;
    font-weight: 600;
}
[data-scheme] .cs-view-chapter-title {
    color: var(--cs-accent);
    border-bottom: 2px solid var(--cs-accent);
    padding-bottom: 6px;
    margin-bottom: 18px;
}
[data-scheme] .cs-view-cover {
    border-bottom: 3px solid var(--cs-accent);
}

[data-scheme].assessment-take-wrap {
    background: #fff;
    border-radius: 10px;
    padding-top: 28px;
}

[data-scheme] .at-field {
    background: var(--cs-section-bg);
    border-color: transparent;
}

[data-scheme] .at-label {
    color: var(--cs-accent);
}

[data-scheme] .at-choice-option:has(input:checked) {
    border-color: var(--cs-accent);
    background: color-mix(in srgb, var(--cs-accent) 10%, white);
}

[data-scheme] .at-actions {
    border-top-color: color-mix(in srgb, var(--cs-accent) 20%, white);
}

.book-override-box {
    background: #eef4f8;
    border: 1px solid #c2d8e6;
    border-radius: 10px;
    padding: 14px 16px 16px;
    margin-top: 8px;
}
.book-override-notice {
    font-size: 0.82rem;
    color: #2a4f6a;
    line-height: 1.45;
    margin-bottom: 14px;
}
.book-cover-upload-zone {
    min-height: 100px;
    background: rgba(255,255,255,0.7);
    border-color: #a8c8da;
}
.book-cover-upload-zone:hover,
.book-cover-upload-zone.dragover {
    background: #e0eff6;
    border-color: #3a6b8a;
}
.book-cover-upload-zone.uploading {
    opacity: 0.6;
    cursor: wait;
}

.cs-theme-sample {
    background: #fff;
    color: #2c2c2c;
    line-height: 1.6;
}

.cs-sample-titlepage {
    text-align: center;
    padding: 30px 18px 34px;
    border-bottom: 1px solid #ececec;
    margin-bottom: 6px;
}
.cs-sample-title {
    font-family: var(--cs-heading-font, serif);
    color: var(--cs-h1, #333);
    font-size: clamp(24px, 5vw, 38px);
    line-height: 1.15;
    margin: 6px 0 14px;
    font-weight: 700;
}
.cs-sample-subtitle {
    color: #7a828b;
    letter-spacing: 0.22em;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 22px;
}
.cs-sample-intro {
    max-width: 46ch;
    margin: 0 auto 24px;
    color: #4a4a4a;
    font-family: var(--cs-body-font, serif);
}
.cs-sample-meta {
    display: inline-block;
    text-align: left;
    font-size: 13px;
    color: #555;
    margin-bottom: 22px;
}
.cs-sample-meta div { margin: 3px 0; }
.cs-sample-meta span {
    display: inline-block;
    min-width: 92px;
    color: #99a0a8;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 11px;
}
.cs-sample-branding {
    font-family: var(--cs-heading-font, serif);
    color: var(--cs-h2, #555);
    font-size: 13px;
    line-height: 1.5;
    letter-spacing: 0.02em;
}

.cs-theme-sample .wb-text-block { padding: 0 18px; }
.cs-sample-prompt { padding: 8px 18px 20px; }

.cs-fill-lines { margin-top: 8px; }
.cs-fill-lines span {
    display: block;
    height: 26px;
    border-bottom: 1px solid #cfd4da;
}

.cs-theme-preview-wrap { margin-top: 6px; }
.cs-theme-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.cs-theme-chip {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    border: 1.5px solid transparent;
    border-radius: 999px;
    padding: 5px 12px 5px 6px;
    background: transparent;
    cursor: pointer;
    font-size: 13px;
    transition: border-color .12s, box-shadow .12s, background .12s;
}
.cs-theme-chip:hover { border-color: #e0e0e0; }
.cs-theme-chip.selected {
    border-color: var(--chip-primary, #555);
    background: #fff;
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--chip-primary, #555) 22%, transparent);
}
.cs-theme-chip-swatch {
    width: 30px; height: 20px;
    border-radius: 5px;
    overflow: hidden;
    display: flex;
    flex-shrink: 0;
    border: 1px solid rgba(0,0,0,0.08);
}
.cs-theme-chip-swatch i { display: block; height: 100%; flex: 1; }
.cs-theme-chip-name { font-weight: 600; color: #333; }

.cs-theme-sample-frame {
    border: 1px solid #e4e4e4;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    max-height: 620px;
    overflow-y: auto;
}

@media (max-width: 480px) {
    .cs-sample-titlepage { padding: 22px 12px 24px; }
    .cs-theme-sample .wb-text-block { padding: 0 12px; }
}

[data-scheme] td .ql-table-block,
[data-scheme] th .ql-table-block { margin: 0; }
[data-scheme] table.ql-table-better { table-layout: auto; }