.admin-shell{width:100%;max-width:100%;min-height:100svh;overflow-x:hidden;background:#f4f6f8;color:var(--color-text)}.admin-topbar{height:4.5rem;position:sticky;z-index:50;top:0;justify-content:space-between;padding:0 var(--space-6);border-bottom:1px solid var(--color-border);background:rgb(255 255 255/.92);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.add-block-row,.admin-brand,.admin-topbar,.admin-topbar__meta,.admin-user,.block-header,.danger-zone,.device-switcher,.editor-actions,.editor-actions__buttons,.editor-actions__status,.format-toolbar,.preview-toolbar,.rail-footer,.rail-heading,.save-indicator,.security-badge,.table-actions,.translation-editor{display:flex;align-items:center}.admin-brand{gap:var(--space-4)}.admin-brand__section{padding-left:var(--space-4);border-left:1px solid var(--color-line-strong);color:var(--color-text-muted);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.admin-topbar__meta{gap:var(--space-5)}.security-badge{min-height:2rem;gap:var(--space-2);padding:0 var(--space-3);border:1px solid #b9ebcf;border-radius:var(--radius-round);background:var(--color-mint-soft);color:#147a46;font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.security-badge span{font-size:.55rem}.admin-user{max-width:13rem;min-height:2rem;overflow:hidden;color:var(--color-text-secondary);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap}.admin-session-actions{display:flex;align-items:center;gap:var(--space-2)}.admin-export,.admin-logout{min-height:2.75rem;display:inline-flex;align-items:center;padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-round);background:var(--color-paper);color:var(--color-text-secondary);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold);transition:color var(--duration-fast),border-color var(--duration-fast),background-color var(--duration-fast)}.admin-export:hover,.admin-logout:hover:not(:disabled){border-color:var(--color-brand-200);background:var(--color-brand-50);color:var(--color-action-hover)}.admin-export:active,.admin-logout:active:not(:disabled){border-color:var(--color-brand-300);background:var(--color-brand-100);color:var(--color-action-active)}.admin-logout:disabled{color:var(--color-disabled-text);cursor:not-allowed}.admin-workspace{width:100%;min-width:0;max-width:100%;min-height:calc(100svh - 4.5rem);display:grid;grid-template-columns:17.5rem minmax(35rem,1fr) minmax(26rem,.82fr)}.admin-workspace[data-preview-visible=false]{grid-template-columns:17.5rem minmax(0,1fr)}.preview-column,.publication-rail{position:sticky;top:4.5rem;height:calc(100svh - 4.5rem);overflow:auto}.publication-rail{display:flex;flex-direction:column;padding:var(--space-6) var(--space-4) var(--space-4);border-right:1px solid var(--color-border);background:var(--color-paper)}.publication-group{display:grid;gap:var(--space-2)}.publication-group>h2{display:flex;align-items:center;justify-content:space-between;margin:0;padding:0 var(--space-2);color:var(--color-text-muted);font-size:.6875rem;font-weight:var(--font-weight-bold);letter-spacing:.08em;text-transform:uppercase}.publication-group>h2 span{min-width:1.5rem;height:1.5rem;display:grid;place-items:center;border-radius:var(--radius-round);background:var(--color-surface-subtle);color:var(--color-text-subtle);font-size:.625rem;letter-spacing:0}.publication-item{grid-template-columns:3rem minmax(0,1fr);column-gap:var(--space-3)}.publication-item__cover{width:3rem;height:3rem;display:grid;grid-row:1/span 3;overflow:hidden;place-items:center;border-radius:var(--radius-sm);background:var(--color-brand-100);color:var(--color-brand-700)}.publication-item__cover img{width:100%;height:100%;object-fit:cover}.publication-item__cover b{font-size:.6875rem}.publication-item__cover--reading{background:var(--color-mint-soft);color:#147a46}.publication-item__cover--listening{background:var(--color-yellow-soft);color:#7c6200}.publication-item__cover--speaking{background:var(--color-coral-soft);color:#9a3e2d}.publication-item__cover--vocabulary{background:#eee8ff;color:#6547a8}.rail-heading{justify-content:space-between;padding:0 var(--space-2)}.admin-kicker{margin:0 0 var(--space-1);color:var(--color-text-muted);font-size:.6875rem;font-weight:var(--font-weight-semibold);letter-spacing:.1em;line-height:1.3;text-transform:uppercase}.preview-toolbar h2,.rail-heading h1,.settings-panel h2{margin:0;font-size:1.25rem;font-weight:var(--font-weight-bold);letter-spacing:-.025em;line-height:1.2}.icon-button{width:2.75rem;height:2.75rem;display:grid;place-items:center;border:0;border-radius:var(--radius-sm);font-size:1.6rem;line-height:1}.icon-button--accent{background:var(--color-action);color:white}.icon-button--accent:hover{background:var(--color-action-hover)}.admin-search{height:2.75rem;display:flex;align-items:center;gap:var(--space-2);margin:var(--space-6) 0 var(--space-4);padding:0 var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-subtle);color:var(--color-text-muted)}.admin-search input{width:100%;height:100%;border:0;outline:0;background:transparent;font-size:var(--type-body-sm-size)}.publication-list{display:grid;gap:var(--space-5)}.publication-item{display:grid;width:100%;gap:var(--space-2);padding:var(--space-4);border:1px solid transparent;border-radius:var(--radius-md);background:transparent;text-align:left}.publication-item:hover{background:var(--color-surface-subtle)}.publication-item[data-active=true]{border-color:var(--color-brand-200);background:var(--color-brand-50)}.publication-item__title{font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold);line-height:1.35}.publication-item__meta{display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:var(--type-caption-size)}.publication-item__meta i{width:.45rem;height:.45rem;border-radius:50%;background:var(--color-yellow)}.publication-item__meta i[data-status=published]{background:#23b26d}.publication-item__meta b{padding:0 var(--space-2);border-radius:var(--radius-round);background:white;color:var(--color-action);font-size:.625rem}.publication-item__date{color:var(--color-text-subtle);font-size:.6875rem}.empty-list{display:grid;gap:var(--space-2);padding:var(--space-8) var(--space-4);border:1px dashed var(--color-line-strong);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--type-caption-size);text-align:center}.empty-list strong{color:var(--color-text-secondary);font-size:var(--type-body-sm-size)}.rail-footer{gap:var(--space-3);margin-top:auto;padding:var(--space-4) var(--space-2) 0;border-top:1px solid var(--color-border);color:var(--color-text-muted)}.rail-footer>span:first-child{width:2rem;height:2rem;display:grid;place-items:center;border-radius:50%;background:var(--color-mint-soft);color:#16814c}.rail-footer>span:last-child{display:grid}.rail-footer strong{color:var(--color-text-secondary);font-size:var(--type-caption-size)}.rail-footer small{font-size:.625rem}.editor-column{width:100%;min-width:0;max-width:100%;background:#f8f9fb}.editor-column[data-empty=true]{display:grid;min-height:calc(100svh - 4.5rem);place-items:center;padding:var(--space-8)}.editor-column[data-empty=true]>:not(.admin-start){display:none}.admin-start{width:min(100%,38rem);display:flex;flex-direction:column;align-items:flex-start;padding:clamp(var(--space-8),6vw,var(--space-12));border:1px solid var(--color-border);border-radius:var(--radius-xl);background:white;box-shadow:var(--shadow-2)}.admin-start__mark{width:4.5rem;height:4.5rem;display:grid;align-content:center;gap:.42rem;margin-bottom:var(--space-8);padding:0 var(--space-4);border-radius:var(--radius-lg);background:var(--color-ink-950);transform:rotate(-3deg)}.admin-start__mark span{height:.3rem;display:block;border-radius:var(--radius-round);background:white}.admin-start__mark span:first-child{width:74%;background:var(--color-yellow)}.admin-start__mark span:nth-child(3){width:58%;background:var(--color-mint)}.admin-start h2{max-width:13ch;margin:0 0 var(--space-4);font-size:clamp(2rem,5vw,3rem);letter-spacing:-.05em;line-height:1.05}.admin-start>p:not(.admin-kicker){max-width:32rem;margin:0 0 var(--space-8);color:var(--color-text-muted);font-size:var(--type-body-lg-size);line-height:1.6}.admin-start>small{margin-top:var(--space-4);color:var(--color-text-subtle);font-size:var(--type-caption-size)}.migration-control{display:grid;justify-items:start;gap:var(--space-2);margin-top:var(--space-3)}.migration-control__error{max-width:32rem;color:#b7311f}.editor-actions{min-height:4.5rem;justify-content:space-between;padding:var(--space-3) var(--space-8);border-bottom:1px solid var(--color-border);background:rgb(255 255 255/.76)}.editor-actions__buttons{min-width:0;gap:var(--space-3)}.editor-actions__status{gap:var(--space-5)}.preview-toggle{min-height:2rem;padding:0;border:0;background:transparent;color:var(--color-action);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.preview-toggle:hover{color:var(--color-action-hover)}.published-link{color:var(--color-text-secondary);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold);font-variant-emoji:text}.published-link:hover{color:var(--color-action)}.save-indicator{gap:var(--space-2);color:var(--color-text-muted);font-size:var(--type-caption-size)}.save-indicator i{width:.5rem;height:.5rem;border-radius:50%;background:var(--color-yellow)}.save-indicator[data-state=saved] i{background:#23b26d}.save-indicator[data-state=error] i{background:var(--color-coral)}.admin-button{min-width:0;min-height:2.75rem;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:0 var(--space-5);border:1px solid transparent;border-radius:var(--radius-round);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold);font-variant-emoji:text;white-space:nowrap}.admin-button:disabled{cursor:not-allowed;opacity:.45}.admin-button--ghost{border-color:var(--color-border);background:white}.admin-button--ghost:hover{border-color:var(--color-line-strong)}.admin-button--primary{background:var(--color-action);color:white;box-shadow:0 8px 20px rgb(0 150 255/.18)}.admin-button--primary:hover{background:var(--color-action-hover)}.admin-button--dark{background:var(--color-ink-950);color:white}.admin-button--danger{border-color:#ffbeb2;background:#fff6f4;color:#b7311f}.admin-message{margin:var(--space-4) var(--space-8) 0;padding:var(--space-3) var(--space-4);border:1px solid var(--color-brand-200);border-radius:var(--radius-sm);background:var(--color-brand-50);color:var(--color-brand-700);font-size:var(--type-body-sm-size)}.editor-tabs{display:flex;gap:var(--space-6);padding:0 var(--space-8);border-bottom:1px solid var(--color-border);background:white}.editor-tabs button{min-height:3.25rem;padding:0;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--color-text-muted);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.editor-tabs button[aria-selected=true]{border-bottom-color:var(--color-action);color:var(--color-text)}.editor-canvas,.settings-panel{width:min(52rem,calc(100% - 2 * var(--space-8)));margin:var(--space-8) auto var(--space-16)}.publication-heading-fields{display:grid;gap:var(--space-3);padding:var(--space-8);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:white;box-shadow:var(--shadow-1)}.field-label{color:var(--color-text-muted);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.lead-input,.title-input{width:100%;padding:0;border:0;outline:0;background:transparent;resize:none}.title-input{min-height:4.75rem;field-sizing:content;font-size:clamp(1.65rem,3vw,2.25rem);font-weight:var(--font-weight-bold);letter-spacing:-.04em;line-height:1.12}.lead-input{min-height:5rem;field-sizing:content;color:var(--color-text-secondary);font-size:var(--type-body-size);line-height:1.55}.block-list{display:grid;gap:var(--space-5);margin-top:var(--space-5)}.editor-block{overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:white;box-shadow:var(--shadow-1)}.block-header{justify-content:space-between;min-height:3.5rem;padding:0 var(--space-5);border-bottom:1px solid var(--color-border);background:#fbfcfd}.block-header>span{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-secondary);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.08em}.block-header i{width:1.5rem;height:1.5rem;display:grid;place-items:center;border-radius:50%;background:var(--color-brand-100);color:var(--color-brand-700);font-size:.625rem;font-style:normal}.block-header__actions{display:flex;align-items:center;gap:var(--space-1)}.block-move-button{width:2rem;height:2rem;display:grid;place-items:center;padding:0;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--color-text-muted);font-variant-emoji:text}.block-move-button:hover:not(:disabled){border-color:var(--color-border);background:white;color:var(--color-action)}.block-move-button:disabled{opacity:.25}.quiet-button{border:0;background:transparent;color:var(--color-text-muted);font-size:var(--type-caption-size)}.quiet-button--danger:hover{color:#b7311f}.format-toolbar{min-height:3.5rem;gap:var(--space-3);padding:0 var(--space-5);border-bottom:1px solid var(--color-border)}.toolbar-label{color:var(--color-text-muted);font-size:var(--type-caption-size)}.toolbar-group{display:flex;padding:var(--space-1);border-radius:var(--radius-xs);background:var(--color-surface-subtle)}.toolbar-group button{min-width:2.25rem;height:2rem;padding:0 var(--space-2);border:0;border-radius:.375rem;background:transparent;color:var(--color-text-secondary);font-weight:var(--font-weight-semibold)}.toolbar-group button[aria-pressed=true]{background:white;color:var(--color-action);box-shadow:var(--shadow-1)}.toolbar-group--style{flex-wrap:wrap}.toolbar-group--style button{padding-inline:var(--space-3)}.toolbar-divider{width:1px;height:1.5rem;background:var(--color-border)}.toolbar-hint{color:var(--color-text-subtle);font-size:var(--type-caption-size)}.translation-command{flex:0 0 auto;min-height:2rem;padding:0 var(--space-3);border:1px solid #d8cef8;border-radius:var(--radius-xs);background:var(--color-lilac-soft);color:#564284;font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.translation-command[aria-pressed=true]{border-color:#a893dd;background:#e6dcff}.text-editor{width:100%;display:block;padding:var(--space-6);border:0;outline:0;resize:vertical;color:var(--color-text-secondary);font:inherit;line-height:1.7}.rich-text-loading{min-height:10rem;display:grid;place-items:center;color:var(--color-text-muted);font-size:var(--type-body-sm-size)}.rich-text-surface{min-height:13rem;padding:var(--space-6);outline:0;color:var(--color-text-secondary);font-size:var(--type-body-size);line-height:1.75}.rich-text-surface>*+*{margin-top:var(--space-4)}.rich-text-surface p{margin-bottom:0}.rich-text-surface h1,.rich-text-surface h2,.rich-text-surface h3{color:var(--color-text);letter-spacing:-.035em;line-height:1.18}.rich-text-surface h1{font-size:2rem}.rich-text-surface h2{font-size:1.65rem}.rich-text-surface h3{font-size:1.3rem}.rich-text-surface ol,.rich-text-surface ul{display:grid;gap:var(--space-2);padding-left:var(--space-6)}.rich-text-surface a{color:var(--color-action);text-decoration:underline;text-decoration-thickness:.08em;text-underline-offset:.16em}.rich-text-surface .translation-word{padding:0 .12em;border-radius:.2em;background:var(--color-lilac-soft)}.rich-text-surface p.is-editor-empty:first-child:before{height:0;float:left;color:var(--color-text-subtle);content:"Начните писать текст урока…";pointer-events:none}.rich-text-hint{margin:0;padding:0 var(--space-5) var(--space-4);color:var(--color-text-muted);font-size:var(--type-caption-size)}.rich-text-command-panel{display:grid;grid-template-columns:minmax(8rem,.8fr) minmax(10rem,1fr) auto auto;align-items:center;gap:var(--space-3);margin:0 var(--space-5) var(--space-5);padding:var(--space-4);border:1px solid #d8cef8;border-radius:var(--radius-md);background:var(--color-lilac-soft)}.rich-text-command-panel>div{display:grid;min-width:0}.rich-text-command-panel span{color:var(--color-text-muted);font-size:.625rem;font-weight:var(--font-weight-semibold);letter-spacing:.07em;text-transform:uppercase}.rich-text-command-panel strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rich-text-command-panel input{min-width:0;height:2.75rem;padding:0 var(--space-3);border:1px solid #c9bce9;border-radius:var(--radius-sm);background:white}.add-block-row{flex-wrap:wrap;justify-content:center;gap:var(--space-3);margin-top:var(--space-5);padding:var(--space-5);border:1px dashed var(--color-line-strong);border-radius:var(--radius-lg)}.add-block-row button,.table-actions button{min-height:2.75rem;padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-round);background:white;color:var(--color-text-secondary);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.add-block-row button:hover,.table-actions button:hover{border-color:var(--color-action);color:var(--color-action)}.table-editor{padding:var(--space-5)}.caption-input{width:100%;margin-bottom:var(--space-4);padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-weight:var(--font-weight-semibold)}.table-editor__scroll{overflow:auto;border:1px solid var(--color-border);border-radius:var(--radius-md)}.table-editor table{width:100%;border-collapse:separate;border-spacing:0}.table-editor th{background:var(--color-ink-950)}.table-editor td:not(:last-child),.table-editor th:not(:last-child){border-right:1px solid var(--color-border)}.table-editor tr:not(:last-child) td{border-bottom:1px solid var(--color-border)}.table-editor input{width:100%;min-width:8rem;padding:var(--space-3);border:0;outline:0;background:transparent;font-size:var(--type-body-sm-size)}.table-editor th input{color:white;font-weight:var(--font-weight-semibold)}.table-actions{flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}.table-actions button{min-height:2.25rem;font-size:var(--type-caption-size)}.table-actions button:disabled{opacity:.4}.admin-shell input:focus-visible,.admin-shell select:focus-visible,.admin-shell textarea:focus-visible{outline:0;border-color:var(--control-border-focus);box-shadow:var(--control-focus-ring)}.block-field-grid input,.block-field-grid textarea,.caption-input,.exercise-editor input,.exercise-editor textarea,.form-field-editor>input,.select-control select,.settings-grid input,.settings-grid select,.settings-grid textarea{transition:border-color var(--duration-fast),background var(--duration-fast),box-shadow var(--duration-fast)}.block-field-grid input:hover,.block-field-grid textarea:hover,.caption-input:hover,.exercise-editor input:hover,.exercise-editor textarea:hover,.form-field-editor>input:hover,.select-control select:hover,.settings-grid input:hover,.settings-grid select:hover,.settings-grid textarea:hover{border-color:var(--control-border-hover)}.lead-input:focus-visible,.table-editor input:focus-visible,.text-editor:focus-visible,.title-input:focus-visible{box-shadow:none}.exercise-editor,.file-block-editor,.form-block-editor,.image-block-editor{padding:var(--space-5)}.image-upload-field{display:grid;grid-template-columns:minmax(8rem,12rem) 1fr;align-items:center;gap:var(--space-5)}.image-upload-field__preview{aspect-ratio:16/9;display:grid;overflow:hidden;place-items:center;border:1px dashed var(--color-line-strong);border-radius:var(--radius-md);background:var(--color-surface-subtle);color:var(--color-text-subtle);font-size:var(--type-caption-size);line-height:1.5;text-align:center}.image-upload-field__preview img{width:100%;height:100%;object-fit:cover}.upload-button{width:fit-content;min-height:2.75rem;display:inline-flex;align-items:center;padding:0 var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-round);background:white;color:var(--color-text-secondary);cursor:pointer;font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.upload-button:hover{border-color:var(--color-action);color:var(--color-action)}.upload-button input{position:absolute;width:1px;height:1px;overflow:hidden;opacity:0}.upload-error{display:block;margin-top:var(--space-2);color:#b7311f}.block-field-grid{display:grid;gap:var(--space-4);margin-top:var(--space-5)}.block-field-grid--two{grid-template-columns:1fr 1fr}.block-field-grid label,.exercise-editor label{display:grid;gap:var(--space-2)}.block-field-grid label>span,.exercise-editor label>span{color:var(--color-text-secondary);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.block-field-grid input,.block-field-grid textarea,.exercise-editor input,.exercise-editor textarea{width:100%;min-height:2.875rem;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:white;font:inherit}.block-field-grid textarea,.exercise-editor textarea{resize:vertical}.exercise-fields-row{display:grid;grid-template-columns:6rem 1fr;gap:var(--space-4)}.exercise-answer,.exercise-prompt{margin-top:var(--space-4)}.exercise-answer small{color:var(--color-text-muted)}.match-pair-list{display:grid;gap:var(--space-4);margin-top:var(--space-6)}.match-pair-editor{padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-subtle)}.match-pair-editor__heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.match-pair-editor__heading strong{font-size:var(--type-body-sm-size)}.add-pair-button{min-height:2.75rem;border:1px dashed var(--color-line-strong);border-radius:var(--radius-md);background:transparent;color:var(--color-action);font-weight:var(--font-weight-semibold)}.add-pair-button:disabled{opacity:.4}.file-upload-field{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-4);border:1px dashed var(--color-line-strong);border-radius:var(--radius-md);background:var(--color-surface-subtle)}.file-upload-field__icon{width:3.25rem;height:3.25rem;display:grid;flex:0 0 auto;place-items:center;border-radius:var(--radius-sm);background:var(--color-brand-100);color:var(--color-brand-700);font-size:1.35rem}.file-upload-field>div:last-child{display:grid;justify-items:start;gap:var(--space-2)}.file-upload-field strong{font-size:var(--type-body-sm-size);word-break:break-word}.form-mode{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-2);margin:var(--space-5) 0;padding:var(--space-4);border:0;border-radius:var(--radius-md);background:var(--color-surface-subtle)}.form-mode legend{float:left;margin-right:auto;padding:var(--space-2) var(--space-4) var(--space-2) 0;color:var(--color-text-secondary);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.form-mode label{position:relative;min-height:2.5rem;display:inline-flex;align-items:center;padding:0 var(--space-4);border:1px solid var(--control-border);border-radius:var(--radius-round);background:var(--control-background-active);color:var(--color-text-muted);cursor:pointer;font-size:var(--type-caption-size);font-weight:var(--font-weight-medium);transition:border-color var(--duration-fast),background var(--duration-fast),color var(--duration-fast)}.form-mode label:hover{border-color:var(--control-border-hover);color:var(--color-text)}.form-mode label:has(input:checked){border-color:var(--color-brand-200);background:var(--color-brand-50);color:var(--color-brand-700);font-weight:var(--font-weight-semibold)}.form-mode label:has(input:focus-visible){outline:0;box-shadow:var(--control-focus-ring)}.form-mode input{position:absolute;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}.form-field-editor-list{display:grid;gap:var(--space-3);margin-bottom:var(--space-3)}.form-field-editor{display:grid;grid-template-columns:1.5rem minmax(8rem,1fr) 8rem auto auto;align-items:center;gap:var(--space-3);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm)}.form-field-editor>i{width:1.5rem;height:1.5rem;display:grid;place-items:center;border-radius:50%;background:var(--color-brand-100);color:var(--color-brand-700);font-size:.625rem;font-style:normal}.form-field-editor>input{min-width:0}.required-toggle{position:relative;display:flex!important;align-items:center;gap:var(--space-2);color:var(--color-text-muted);cursor:pointer;font-size:var(--type-caption-size);white-space:nowrap}.required-toggle input{position:absolute;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}.choice-box{width:1.25rem;height:1.25rem;position:relative;flex:0 0 auto;border:1px solid var(--control-border-hover);border-radius:.375rem;background:var(--control-background-active);transition:border-color var(--duration-fast),background var(--duration-fast),box-shadow var(--duration-fast)}.required-toggle:hover .choice-box{border-color:var(--color-ink-400)}.required-toggle input:checked+.choice-box{border-color:var(--color-ink-950);background:var(--color-ink-950)}.required-toggle input:checked+.choice-box:after{content:"";width:.3rem;height:.55rem;position:absolute;top:.18rem;left:.42rem;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.required-toggle input:focus-visible+.choice-box{border-color:var(--control-border-focus);box-shadow:var(--control-focus-ring)}.reward-file{display:grid;gap:var(--space-3);margin-top:var(--space-5)}.reward-file>span{color:var(--color-text-secondary);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.settings-panel{display:grid;gap:var(--space-5)}.settings-panel section{padding:var(--space-8);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:white;box-shadow:var(--shadow-1)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-5);margin-top:var(--space-6)}.settings-grid label{display:grid;gap:var(--space-2)}.settings-grid label>span{color:var(--color-text-secondary);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.settings-grid input,.settings-grid select,.settings-grid textarea{width:100%;min-height:2.875rem;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:white;font:inherit}.settings-grid textarea{resize:vertical}.settings-grid small{justify-self:end;color:var(--color-text-subtle)}.settings-grid__wide{grid-column:1/-1}.prefix-input{display:flex;align-items:center;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-sm)}.prefix-input:focus-within{border-color:var(--control-border-focus);box-shadow:var(--control-focus-ring)}.prefix-input i{flex:0 0 auto;padding-left:var(--space-4);padding-right:var(--space-2);color:var(--color-text-muted);font-style:normal}.prefix-input input{min-width:0;padding-left:0;border:0;box-shadow:none!important}.select-control{position:relative}.select-control select{width:100%;appearance:none;padding-right:3rem;cursor:pointer}.select-control>span{position:absolute;top:50%;right:var(--space-4);color:var(--color-text-muted);font-size:1rem;pointer-events:none;transform:translateY(-55%)}.select-control--compact select{min-height:2.5rem;padding:var(--space-2) 2.25rem var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:white;font:inherit;font-size:var(--type-caption-size)}.danger-zone{justify-content:space-between;gap:var(--space-8);border-color:#ffd1c8!important}.danger-zone p:last-child{max-width:28rem;margin:var(--space-2) 0 0;color:var(--color-text-muted);font-size:var(--type-body-sm-size)}.preview-column{border-left:1px solid var(--color-border);background:#eef1f4}.preview-toolbar{min-height:4.5rem;justify-content:space-between;padding:var(--space-3) var(--space-6);border-bottom:1px solid var(--color-border);background:rgb(255 255 255/.72)}.device-switcher{padding:var(--space-1);border-radius:var(--radius-xs);background:#e4e8ed}.device-switcher button{width:2.25rem;height:2rem;display:grid;place-items:center;border:0;border-radius:.375rem;background:transparent;color:var(--color-text-muted);font-size:1.05rem}.device-switcher button[aria-pressed=true]{background:white;color:var(--color-text);box-shadow:var(--shadow-1)}.preview-stage{min-height:calc(100% - 4.5rem);display:grid;place-items:start center;padding:var(--space-8) var(--space-6)}.lesson-preview{width:min(100%,44rem);min-height:44rem;padding:clamp(var(--space-8),5vw,var(--space-12));border-radius:var(--radius-lg);background:white;box-shadow:var(--shadow-2);transition:width var(--duration-base) var(--ease-standard)}.preview-stage[data-mode=mobile] .lesson-preview{width:min(100%,23rem)}.preview-breadcrumbs{margin-bottom:var(--space-6);color:var(--color-text-subtle);font-size:.6875rem}.preview-tags{display:flex;gap:var(--space-2);margin-bottom:var(--space-5)}.preview-tags span{padding:var(--space-1) var(--space-3);border-radius:var(--radius-round);background:var(--color-brand-100);color:var(--color-brand-700);font-size:.625rem;font-weight:var(--font-weight-semibold);letter-spacing:.07em;text-transform:uppercase}.preview-tags span:last-child{background:var(--color-yellow-soft);color:#7c6200}.lesson-preview h1{max-width:15ch;margin-bottom:var(--space-5);font-size:clamp(2rem,3.5vw,3.25rem);font-weight:var(--font-weight-bold);letter-spacing:-.052em;line-height:1.02}.preview-lead{max-width:38rem;color:var(--color-text-secondary);font-size:var(--type-body-lg-size);line-height:1.55}.preview-content{display:grid;gap:var(--space-8);margin-top:var(--space-10)}.preview-paragraph{margin:0;color:var(--color-text-secondary);font-size:1.0625rem;line-height:1.75;white-space:pre-wrap}.preview-h1,.preview-h2,.preview-h3{scroll-margin-top:7rem;color:var(--color-text)}.preview-h1{margin:var(--space-8) 0 calc(-1 * var(--space-4));font-size:clamp(2rem,5vw,3rem);letter-spacing:-.045em;line-height:1.08}.preview-h2{margin:var(--space-6) 0 calc(-1 * var(--space-4));font-size:clamp(1.75rem,4vw,2.5rem);letter-spacing:-.04em;line-height:1.12}.preview-h3{margin:var(--space-4) 0 calc(-1 * var(--space-4));font-size:clamp(1.25rem,3vw,1.6rem);letter-spacing:-.03em;line-height:1.2}.preview-list{display:grid;gap:var(--space-3);margin:0;padding:0;color:var(--color-text-secondary);list-style:none}.preview-list li{position:relative;padding-left:var(--space-8);line-height:1.7}.preview-list--unordered-list li:before{content:"";width:.65rem;height:.65rem;position:absolute;top:.58em;left:var(--space-2);border:3px solid var(--color-brand-500);border-radius:50%;background:var(--color-brand-100)}.preview-list--ordered-list{counter-reset:lesson-list}.preview-list--ordered-list li{counter-increment:lesson-list}.preview-list--ordered-list li:before{content:counter(lesson-list);width:1.5rem;height:1.5rem;display:grid;position:absolute;top:.18rem;left:0;place-items:center;border-radius:50%;background:var(--color-ink-950);color:white;font-size:.6875rem;font-weight:var(--font-weight-semibold)}.preview-toc{display:grid;gap:var(--space-2);margin-top:var(--space-8);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-subtle)}.preview-toc strong{margin-bottom:var(--space-2);font-size:var(--type-body-sm-size)}.preview-toc a{color:var(--color-text-secondary);font-size:var(--type-body-sm-size);line-height:1.4}.preview-toc a[data-level=h3]{padding-left:var(--space-4);color:var(--color-text-muted);font-size:var(--type-caption-size)}.preview-toc a[data-level=h1]{font-weight:var(--font-weight-semibold)}.preview-toc a:hover{color:var(--color-action)}.translation-word{position:relative;border-bottom:2px dotted var(--color-action);color:var(--color-brand-700);cursor:help;font-weight:var(--font-weight-medium)}.translation-tooltip{width:max-content;max-width:15rem;position:absolute;z-index:5;bottom:calc(100% + .65rem);left:50%;padding:var(--space-2) var(--space-3);border-radius:var(--radius-xs);background:var(--color-ink-950);color:white;font-size:var(--type-caption-size);font-weight:var(--font-weight-medium);line-height:1.4;opacity:0;pointer-events:none;transform:translate(-50%,.25rem);transition:opacity var(--duration-fast),transform var(--duration-fast)}.translation-tooltip:after{content:"";position:absolute;top:100%;left:50%;border:.35rem solid transparent;border-top:.35rem solid var(--color-ink-950);transform:translateX(-50%)}.translation-word:focus .translation-tooltip,.translation-word:hover .translation-tooltip{opacity:1;transform:translate(-50%)}.preview-table{margin:0}.preview-table figcaption{margin-bottom:var(--space-3);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.preview-table__scroll{overflow:auto;border:1px solid var(--color-border);border-radius:var(--radius-md)}.preview-table table{width:100%;border-collapse:separate;border-spacing:0;font-size:var(--type-body-sm-size)}.preview-table td,.preview-table th{padding:var(--space-3) var(--space-4);text-align:left}.preview-table th{background:var(--color-ink-950);color:white;font-weight:var(--font-weight-semibold)}.preview-table td{color:var(--color-text-secondary)}.preview-table td:not(:last-child),.preview-table th:not(:last-child){border-right:1px solid var(--color-border)}.preview-table tbody tr:not(:last-child) td{border-bottom:1px solid var(--color-border)}.preview-table tbody tr:nth-child(2n){background:var(--color-surface-subtle)}.preview-image{margin:0}.image-placeholder,.preview-image img{width:100%;overflow:hidden;border-radius:var(--radius-md)}.preview-image img{display:block;max-height:30rem;object-fit:cover}.image-placeholder{min-height:14rem;display:grid;place-items:center;border:1px dashed var(--color-line-strong);background:var(--color-surface-subtle);color:var(--color-text-subtle);font-size:var(--type-body-sm-size)}.preview-image figcaption{margin-top:var(--space-3);color:var(--color-text-muted);font-size:var(--type-caption-size);line-height:1.5}.exercise-preview{position:relative;padding:clamp(var(--space-6),5vw,var(--space-8));border-radius:var(--radius-lg);background:var(--color-ink-950);color:white}.exercise-preview__number{margin-bottom:var(--space-3);color:var(--color-brand-200);font-size:.6875rem;font-weight:var(--font-weight-semibold);letter-spacing:.1em;text-transform:uppercase}.exercise-preview h2{margin:0 0 var(--space-2);color:white;font-size:clamp(1.35rem,3vw,1.8rem);letter-spacing:-.035em;line-height:1.15}.exercise-preview>p{margin:0 0 var(--space-6);color:var(--color-on-dark-62);font-size:var(--type-body-sm-size)}.sentence-result{min-height:6rem;display:flex;flex-wrap:wrap;align-content:center;gap:var(--space-2);padding:var(--space-4);border:1px dashed var(--color-on-dark-25);border-radius:var(--radius-md);background:var(--color-on-dark-10)}.sentence-result[data-dragging=true]{border-color:var(--color-action);background:rgb(0 150 255/.12)}.sentence-result>span{color:var(--color-on-dark-55);font-size:var(--type-body-sm-size)}.sentence-pool button,.sentence-result button{min-height:2.75rem;padding:0 var(--space-4);border:0;border-radius:var(--radius-sm);cursor:grab;font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold);touch-action:none;-webkit-user-select:none;user-select:none}.sentence-result button{background:var(--color-action);color:white}.sentence-pool{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}.sentence-pool button{background:white;color:var(--color-ink-950);transition:background var(--duration-fast),color var(--duration-fast),opacity var(--duration-fast)}.sentence-pool button:hover{background:var(--color-brand-50);color:var(--color-action)}.sentence-pool button:disabled{cursor:default;opacity:.16;transform:none}.sentence-drag-ghost{pointer-events:none;position:fixed;z-index:1000;min-height:2.75rem;display:grid;place-items:center;padding:0 var(--space-4);border:1px solid var(--color-on-dark-72);border-radius:var(--radius-sm);background:var(--color-action);color:white;font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold);box-shadow:var(--shadow-3);opacity:.92;transform:translate(-50%,-65%) rotate(-2deg)}.exercise-preview__actions{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);margin-top:var(--space-5)}.exercise-reset{min-height:2.75rem;display:inline-flex;align-items:center;padding:0;border:0;background:transparent;color:var(--color-on-dark-62);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.exercise-reset:disabled{opacity:.3}.exercise-check{min-height:2.75rem;padding:0 var(--space-5);border:0;border-radius:var(--radius-round);background:white;color:var(--color-ink-950);font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.exercise-check:disabled{opacity:.28}.exercise-feedback{margin-top:var(--space-4);padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);background:rgb(255 255 255/.1);color:var(--color-on-dark-72);font-size:var(--type-body-sm-size)}.exercise-feedback[data-result=correct]{background:rgb(80 211 139/.16);color:#aaf2ca}.exercise-feedback[data-result=wrong]{background:rgb(255 128 102/.14);color:#ffc4b8}.audio-preview{display:grid;gap:var(--space-5);margin:0;padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--color-brand-50),white)}.audio-preview>div{display:flex;align-items:center;gap:var(--space-4)}.audio-preview>div>span{width:3rem;height:3rem;display:grid;flex:0 0 auto;place-items:center;border-radius:var(--radius-round);background:var(--color-action);color:white;font-size:var(--type-body-lg-size);font-variant-emoji:text}.audio-preview strong{font-size:var(--type-body-lg-size)}.audio-preview p{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--type-body-sm-size)}.audio-preview audio{width:100%;accent-color:var(--color-action)}.quiz-preview__top{display:flex;align-items:center;justify-content:space-between;color:var(--color-on-dark-62);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold);letter-spacing:.06em;text-transform:uppercase}.quiz-preview__top b{color:white}.quiz-progress{height:.35rem;margin:var(--space-3) 0 var(--space-8);overflow:hidden;border-radius:var(--radius-round);background:var(--color-on-dark-16)}.quiz-progress i{height:100%;display:block;border-radius:inherit;background:linear-gradient(90deg,var(--color-brand-400),var(--color-mint));transition:width var(--duration-base) var(--ease-standard)}.quiz-preview fieldset{display:grid;gap:0;margin:var(--space-10) 0 0;padding:0;border:0}.quiz-preview legend{padding:0;color:white;font-size:clamp(1.25rem,3vw,1.65rem);font-weight:var(--font-weight-semibold);line-height:1.3}.quiz-preview fieldset>p{margin:var(--space-3) 0 0;color:var(--color-on-dark-55)}.quiz-preview fieldset>div{display:grid;gap:var(--space-3);margin-top:var(--space-6)}.quiz-preview fieldset label{display:grid;grid-template-columns:2rem minmax(0,1fr);align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border:1px solid var(--color-on-dark-16);border-radius:var(--radius-sm);background:var(--color-on-dark-10);color:white;cursor:pointer;line-height:1.5;transition:border-color var(--duration-fast),background var(--duration-fast),transform var(--duration-fast)}.quiz-preview fieldset label:hover{border-color:var(--color-brand-300);background:var(--color-brand-12)}.quiz-preview fieldset input{position:absolute;width:1px;height:1px;opacity:0}.quiz-preview fieldset label b{width:2rem;height:2rem;display:grid;place-items:center;border-radius:var(--radius-round);background:var(--color-on-dark-16);color:var(--color-brand-200);font-size:var(--type-caption-size)}.quiz-preview fieldset label:has(input:checked){border-color:var(--color-brand-300);background:rgb(0 150 255/.18)}.quiz-preview fieldset label:has(input:checked) b{background:var(--color-action);color:white}.quiz-preview--result{background:linear-gradient(145deg,var(--color-ink-950),#123c5d)}.quiz-result__score{display:flex;align-items:baseline;gap:var(--space-3);margin-bottom:var(--space-6)}.quiz-result__score strong{color:var(--color-yellow);font-size:clamp(3rem,8vw,5rem);line-height:1}.quiz-result__score span{color:var(--color-on-dark-62)}.quiz-reward-download{min-height:3rem;display:inline-flex;align-items:center;margin:var(--space-5) var(--space-4) var(--space-5) 0;padding:0 var(--space-5);border-radius:var(--radius-round);background:var(--color-yellow);color:var(--color-ink-950);font-weight:var(--font-weight-semibold)}.quiz-editor__questions{display:grid;gap:var(--space-4);margin-top:var(--space-5)}.quiz-question-editor{padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-subtle)}.quiz-question-editor__heading{display:grid;grid-template-columns:2rem 1fr auto;align-items:center;gap:var(--space-3)}.quiz-question-editor__heading>span{width:2rem;height:2rem;display:grid;place-items:center;border-radius:var(--radius-round);background:var(--color-brand-100);color:var(--color-brand-700);font-size:.625rem;font-weight:var(--font-weight-bold)}.quiz-editor-options{display:grid;gap:var(--space-2);margin-top:var(--space-4)}.quiz-editor-option{display:grid;grid-template-columns:1.5rem 1.75rem minmax(0,1fr) auto;align-items:center;gap:var(--space-2)}.quiz-editor-option>b{color:var(--color-text-subtle);font-size:var(--type-caption-size);text-align:center}.quiz-correct-toggle{position:relative;width:1.5rem;height:1.5rem;display:block!important;cursor:pointer}.quiz-correct-toggle input{position:absolute;width:1px;height:1px;opacity:0}.quiz-correct-toggle span{width:1.5rem;height:1.5rem;display:block;border:1px solid var(--control-border-hover);border-radius:.45rem;background:white}.quiz-correct-toggle input:checked+span{border-color:var(--color-success);background:var(--color-success)}.quiz-correct-toggle input:checked+span:after{content:"";width:.32rem;height:.6rem;position:absolute;top:.27rem;left:.56rem;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.quiz-correct-toggle input:focus-visible+span{box-shadow:var(--control-focus-ring)}.quiz-add-question{width:fit-content;max-width:100%;margin-top:var(--space-4);padding-inline:var(--space-5);white-space:normal}.quiz-add-option{width:fit-content;padding-inline:var(--space-4)}.quiz-reward{display:grid;grid-template-columns:minmax(12rem,.8fr) minmax(16rem,1.2fr);align-items:center;gap:var(--space-4);margin-top:var(--space-6);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--color-yellow-soft),white)}.quiz-reward p,.settings-section-note{margin:var(--space-1) 0 var(--space-4);color:var(--color-text-muted);font-size:var(--type-body-sm-size);line-height:1.55}.quiz-reward .quiet-button{justify-self:start}.image-match-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(8rem,.7fr);gap:var(--space-4)}.image-match-pictures{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3)}.image-match-pictures button{position:relative;min-height:8rem;overflow:hidden;padding:0;border:2px solid transparent;border-radius:var(--radius-md);background:var(--color-on-dark-10);color:white}.image-match-pictures button[data-selected=true]{border-color:var(--color-action);box-shadow:0 0 0 3px rgb(0 150 255/.2)}.image-match-pictures button[data-matched=true]{border-color:#52d58c}.image-match-pictures img{width:100%;height:8rem;object-fit:cover}.image-match-pictures i{position:absolute;right:var(--space-2);bottom:var(--space-2);left:var(--space-2);padding:var(--space-2);border-radius:var(--radius-xs);background:rgb(16 24 40/.8);font-size:var(--type-caption-size);font-style:normal;font-weight:var(--font-weight-semibold);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.match-placeholder{min-height:8rem;display:grid;place-items:center;padding:var(--space-3);color:var(--color-on-dark-55);font-size:var(--type-caption-size)}.image-match-answers{display:grid;align-content:start;gap:var(--space-2)}.image-match-answers button{min-height:2.75rem;padding:var(--space-2) var(--space-3);border:1px solid var(--color-on-dark-16);border-radius:var(--radius-sm);background:var(--color-on-dark-10);color:white;font-size:var(--type-body-sm-size);font-weight:var(--font-weight-semibold)}.image-match-answers button:not(:disabled):hover{border-color:var(--color-action)}.image-match-answers button:disabled{opacity:.3}.file-preview{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:var(--space-4);padding:var(--space-5);border:1px solid var(--color-brand-200);border-radius:var(--radius-md);background:var(--color-brand-50)}.file-preview__icon{width:3rem;height:3rem;display:grid;place-items:center;border-radius:var(--radius-sm);background:var(--color-action);color:white;font-size:1.25rem}.file-preview>div:nth-child(2){min-width:0}.file-preview strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-preview p{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--type-caption-size)}.file-preview small{color:var(--color-text-subtle)}.file-preview>a{min-height:2.75rem;display:inline-flex;align-items:center;padding:0 var(--space-4);border-radius:var(--radius-round);background:var(--color-ink-950);color:white;font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.file-preview>a[aria-disabled=true]{pointer-events:none;opacity:.35}.form-preview{min-height:24rem;padding:clamp(var(--space-6),5vw,var(--space-8));border:1px solid var(--color-border);border-radius:var(--radius-lg);background:linear-gradient(145deg,var(--color-lilac-soft),white 70%)}.form-preview h2{margin:0 0 var(--space-2);font-size:clamp(1.5rem,4vw,2rem);letter-spacing:-.035em}.form-preview>p:not(.admin-kicker){color:var(--color-text-muted)}.form-preview__fields{display:grid;gap:var(--space-4);margin:var(--space-6) 0}.form-preview__fields>label{display:grid;gap:var(--space-2);color:var(--color-text-secondary);font-size:var(--type-caption-size);font-weight:var(--font-weight-semibold)}.form-preview__fields>label>span:first-child i{color:var(--color-error);font-style:normal}.form-preview__fields input:not([type=checkbox]),.form-preview__fields textarea{width:100%;min-height:var(--control-height);padding:var(--space-3) var(--space-4);border:1px solid var(--control-border);border-radius:var(--radius-sm);outline:0;background:var(--control-background);color:var(--color-text);font:inherit;transition:border-color var(--duration-fast),background var(--duration-fast),box-shadow var(--duration-fast)}.form-preview__fields textarea{min-height:7rem;resize:vertical}.form-preview__fields input:not([type=checkbox]):hover,.form-preview__fields textarea:hover{border-color:var(--control-border-hover)}.form-preview__fields input:not([type=checkbox]):focus,.form-preview__fields textarea:focus{border-color:var(--control-border-focus);background:var(--control-background-active);box-shadow:var(--control-focus-ring)}.form-preview__fields input:user-invalid,.form-preview__fields textarea:user-invalid{border-color:var(--color-error);box-shadow:0 0 0 3px rgb(183 49 31/.1)}.form-checkbox{position:relative;display:flex!important;align-items:flex-start;gap:var(--space-3);color:var(--color-text-secondary);cursor:pointer;font-size:var(--type-body-sm-size);font-weight:var(--font-weight-regular);line-height:1.5}.form-checkbox input{position:absolute;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}.form-checkbox__box{width:1.375rem;height:1.375rem;position:relative;flex:0 0 auto;margin-top:.05rem;border:1px solid var(--control-border-hover);border-radius:.4rem;background:var(--control-background-active);transition:border-color var(--duration-fast),background var(--duration-fast),box-shadow var(--duration-fast),transform var(--duration-fast)}.form-checkbox:hover .form-checkbox__box{border-color:var(--color-ink-400)}.form-checkbox input:checked+.form-checkbox__box{border-color:var(--color-ink-950);background:var(--color-ink-950)}.form-checkbox input:checked+.form-checkbox__box:after{content:"";width:.34rem;height:.62rem;position:absolute;top:.18rem;left:.46rem;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.form-checkbox input:focus-visible+.form-checkbox__box{border-color:var(--control-border-focus);box-shadow:var(--control-focus-ring)}.form-checkbox:has(input:user-invalid) .form-checkbox__box{border-color:var(--color-error);box-shadow:0 0 0 3px rgb(183 49 31/.1)}.form-privacy-consent{max-width:42rem;margin:0 0 var(--space-5);color:var(--color-text-muted);font-size:var(--type-caption-size)}.form-preview--success>a,.form-preview>button{min-height:3.25rem;display:inline-flex;align-items:center;justify-content:center;padding:0 var(--space-6);border:0;border-radius:var(--radius-round);background:var(--color-action);color:white;font-weight:var(--font-weight-semibold);transition:background var(--duration-fast)}.form-preview--success>a:hover,.form-preview>button:hover{background:var(--color-action-hover)}.form-preview>small{display:block;margin-top:var(--space-3);color:var(--color-text-subtle)}.form-preview--submitting,.form-preview--success{display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.form-preview--submitting>p{max-width:30rem;margin:0}.form-spinner,.form-success-mark{width:3.75rem;height:3.75rem;position:relative;display:block;margin-bottom:var(--space-5);border-radius:50%}.form-spinner{border:3px solid var(--color-brand-100);border-top-color:var(--color-action);animation:form-spinner .9s linear infinite}.form-success-mark{background:var(--color-success-soft)}.form-success-mark:after{content:"";width:.7rem;height:1.3rem;position:absolute;top:.95rem;left:1.48rem;border:solid var(--color-success);border-width:0 3px 3px 0;transform:rotate(45deg)}.form-preview--success h2{max-width:30rem;margin-bottom:var(--space-5)}.form-error{display:flex;align-items:flex-start;gap:var(--space-3);margin-bottom:var(--space-4);padding:var(--space-3) var(--space-4);border:1px solid rgb(183 49 31/.18);border-radius:var(--radius-sm);background:var(--color-error-soft);color:var(--color-error);font-size:var(--type-body-sm-size)}.form-error>span{width:1.25rem;height:1.25rem;display:grid;flex:0 0 auto;place-items:center;border-radius:50%;background:var(--color-error);color:white;font-size:.7rem;font-weight:var(--font-weight-bold)}.form-error p{margin:0}@keyframes form-spinner{to{transform:rotate(1turn)}}@media (max-width:86rem){.admin-workspace{grid-template-columns:15rem minmax(31rem,1fr) minmax(22rem,.72fr)}}@media (max-width:60rem){.admin-workspace,.admin-workspace[data-preview-visible=false]{grid-template-columns:minmax(0,1fr)}.publication-rail{position:relative;top:auto;height:auto;max-height:24rem;border-right:0;border-bottom:1px solid var(--color-border)}.publication-list{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr))}.preview-column{position:relative;top:auto;height:auto;grid-column:1/-1;border-top:1px solid var(--color-border);border-left:0}.rail-footer{display:none}}@media (max-width:42rem){.admin-topbar{height:4rem;padding-inline:var(--space-4)}.admin-brand{gap:var(--space-3)}.admin-brand__section{padding-left:var(--space-3);font-size:var(--type-caption-size)}.admin-user,.security-badge{display:none}.admin-workspace{min-height:calc(100svh - 4rem)}.editor-column[data-empty=true]{min-height:34rem;padding:var(--space-4)}.admin-start{padding:var(--space-6);border-radius:var(--radius-lg)}.admin-start__mark{width:3.75rem;height:3.75rem;margin-bottom:var(--space-6);border-radius:var(--radius-md)}.admin-start h2{font-size:clamp(1.85rem,9vw,2.5rem)}.admin-start>p:not(.admin-kicker){margin-bottom:var(--space-6);font-size:var(--type-body-size)}.admin-start .admin-button{width:100%}.publication-rail{max-height:none;overflow:hidden;padding:var(--space-4)}.rail-heading{padding:0}.rail-heading .admin-kicker{display:none}.rail-heading h1{font-size:1.05rem}.icon-button{width:2.75rem;height:2.75rem;border-radius:var(--radius-round)}.admin-search{height:2.75rem;margin:var(--space-3) 0}.publication-list{width:100%;max-width:100%;display:grid;gap:var(--space-5);padding-right:0;overflow:visible}.publication-group{display:flex;flex-wrap:wrap;gap:var(--space-2)}.publication-group>h2{flex:0 0 100%}.publication-list::-webkit-scrollbar{display:none}.publication-item{width:100%;min-height:6.5rem;flex:0 0 100%;padding:var(--space-3);scroll-snap-align:start}.publication-item__date{display:none}.empty-list{width:100%;flex:0 0 100%;padding:var(--space-5)}.editor-actions{display:grid;position:sticky;z-index:35;top:4rem;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:rgb(255 255 255/.96);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.editor-actions__status{min-width:0;justify-content:space-between;gap:var(--space-3)}.preview-toggle{display:none}.published-link{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.editor-actions__buttons{width:100%}.editor-actions__buttons .admin-button{flex:1 1}.admin-button--primary>span{display:none}.admin-button{min-height:2.75rem}.admin-button,.editor-tabs{padding-inline:var(--space-4)}.editor-tabs{gap:var(--space-5);overflow-x:auto;scrollbar-width:none}.editor-tabs::-webkit-scrollbar{display:none}.editor-tabs button{flex:0 0 auto;font-size:var(--type-caption-size)}.admin-message{margin:var(--space-3) var(--space-4) 0}.editor-canvas,.settings-panel{width:calc(100% - 2 * var(--space-3));margin:var(--space-3) auto var(--space-10)}.publication-heading-fields,.settings-panel section{padding:var(--space-4);border-radius:var(--radius-md)}.title-input{min-height:3.75rem;font-size:1.55rem;line-height:1.15}.lead-input{min-height:4.25rem;font-size:var(--type-body-sm-size)}.block-list{gap:var(--space-3);margin-top:var(--space-3)}.editor-block{border-radius:var(--radius-md)}.block-header{min-height:3rem;gap:var(--space-3);padding:var(--space-2) var(--space-3)}.block-header>span{min-width:0;gap:var(--space-2);font-size:.6rem;letter-spacing:.055em;line-height:1.35}.block-header>span i,.block-header__actions{flex:0 0 auto}.block-move-button{width:2.25rem;height:2.25rem}.block-header__actions .quiet-button--danger{width:2.25rem;height:2.25rem;display:grid;place-items:center;overflow:hidden;padding:0;font-size:0}.block-header__actions .quiet-button--danger:before{content:"×";font-size:1.1rem}.format-toolbar{flex-wrap:nowrap;gap:var(--space-2);padding:var(--space-2) var(--space-3);overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none}.format-toolbar::-webkit-scrollbar{display:none}.toolbar-divider,.toolbar-hint,.toolbar-label{display:none}.toolbar-group{flex:0 0 auto}.toolbar-group button{min-width:2.5rem;height:2.5rem}.toolbar-group--style{flex-wrap:nowrap}.text-editor{min-height:9rem;padding:var(--space-4)}.rich-text-surface{min-height:11rem;padding:var(--space-4)}.rich-text-command-panel{grid-template-columns:minmax(0,1fr) auto;margin:0 var(--space-3) var(--space-3);padding:var(--space-3)}.rich-text-command-panel input,.rich-text-command-panel>div{grid-column:1/-1}.rich-text-command-panel .admin-button{width:auto}.add-block-row{flex-wrap:nowrap;justify-content:flex-start;margin-top:var(--space-3);padding:var(--space-3);overflow-x:auto;overscroll-behavior-x:contain;border-radius:var(--radius-md);scrollbar-width:none}.add-block-row::-webkit-scrollbar{display:none}.add-block-row button{flex:0 0 auto}.exercise-editor,.file-block-editor,.form-block-editor,.image-block-editor,.table-editor{padding:var(--space-4)}.block-field-grid--two,.exercise-fields-row,.image-match-grid,.image-upload-field{grid-template-columns:1fr}.form-mode{display:grid;gap:var(--space-3);margin-block:var(--space-4);padding:var(--space-3)}.form-mode legend{float:none;margin:0;padding:0 0 var(--space-1)}.form-field-editor{grid-template-columns:1.5rem minmax(0,1fr);gap:var(--space-2);padding:var(--space-3)}.form-field-editor>:nth-child(n+3){grid-column:2}.file-upload-field{align-items:flex-start;padding:var(--space-3)}.image-match-pictures{grid-template-columns:1fr}.quiz-editor-option{grid-template-columns:1.5rem 1.5rem minmax(0,1fr)}.quiz-editor-option>.quiet-button{grid-column:3;justify-self:start}.quiz-reward{grid-template-columns:1fr}.file-preview{grid-template-columns:auto 1fr}.file-preview>a{grid-column:1/-1;justify-content:center}.settings-grid{grid-template-columns:1fr}.settings-grid__wide{grid-column:auto}.danger-zone{align-items:stretch;flex-direction:column;gap:var(--space-4)}.danger-zone .admin-button{width:100%}.preview-column{display:none}}