/* === Table Builder (editor) === */
#teTableGrid { border-collapse: collapse; }
#teTableGrid th { background: var(--cl-card-hover); vertical-align: middle; padding: 0.5rem; }
#teTableGrid td { vertical-align: middle; padding: 0.5rem; }
#teTableGrid input[type="text"] { border: 1px solid var(--cl-border); }
#teTableGrid input[type="text"]:focus { border-color: var(--site-accent); box-shadow: 0 0 0 2px var(--site-accent-focus); }

/* === Quiz Editor === */
.qz-edit-questions { display: flex; flex-direction: column; gap: 0.75rem; }
.qz-edit-card {
    border: 1px solid var(--cl-border); border-radius: 10px; padding: 0.75rem;
    background: var(--cl-bg-alt);
}
.qz-edit-card-header {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem;
}
.qz-edit-options { display: flex; flex-direction: column; gap: 4px; }
.qz-edit-row {
    display: flex; align-items: center; gap: 6px;
    padding: 2px 4px; border-radius: 8px;
    transition: background 0.15s;
}
.qz-edit-row:has(input[type="radio"]:checked) { background: rgba(var(--cl-success-rgb),0.07); }

/* Custom radio */
.qz-edit-radio {
    flex-shrink: 0; cursor: pointer;
    display: flex; align-items: center;
}
.qz-edit-radio input[type="radio"] { display: none; }
.qz-edit-radio-dot {
    width: 20px; height: 20px; border-radius: 50%;
    border: 2px solid var(--cl-border);
    background: var(--cl-card);
    position: relative;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
    flex-shrink: 0;
}
.qz-edit-radio-dot::after {
    content: '';
    position: absolute;
    width: 8px; height: 8px; border-radius: 50%;
    background: #fff;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.15s;
}
.qz-edit-radio input[type="radio"]:checked + .qz-edit-radio-dot {
    border-color: var(--cl-success);
    background: var(--cl-success);
    box-shadow: 0 0 0 3px rgba(var(--cl-success-rgb),0.18);
}
.qz-edit-radio input[type="radio"]:checked + .qz-edit-radio-dot::after {
    transform: translate(-50%, -50%) scale(1);
}
.qz-edit-radio:hover .qz-edit-radio-dot { border-color: var(--cl-success); }

.qz-edit-row input[type="text"] { flex: 1; }
.qz-edit-del { flex-shrink: 0; padding: 0.1rem 0.3rem; font-size: var(--font-size-100); }

/* === Edit page === */
.edit-section {
    background: var(--cl-card);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.edit-section-title {
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--cl-border-light);
    color: var(--cl-text);
}

.code-textarea {
    font-family: var(--site-font-mono);
    font-size: var(--font-size-100);
    background: #282a36;
    color: #f8f8f2;
    border: none;
    border-radius: 8px;
    padding: 1rem;
}

.code-textarea:focus {
    background: #282a36;
    color: #f8f8f2;
    box-shadow: 0 0 0 0.2rem rgba(var(--cl-primary-rgb),0.25);
}

/* Snippet toolbar */
.snippet-toolbar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    background: var(--cl-bg-alt);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
}

.snippet-label {
    font-size: var(--font-size-100);
    font-weight: 600;
    color: var(--cl-text-muted);
    margin-right: 0.25rem;
}

.snippet-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.6rem;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 6px;
    font-size: var(--font-size-100);
    font-weight: 600;
    color: var(--cl-text);
    cursor: pointer;
    transition: all 0.15s;
}

.snippet-btn:hover {
    border-color: var(--cl-primary);
    background: var(--cl-primary-light);
    color: var(--cl-primary);
}

.snippet-btn i {
    font-size: var(--font-size-100);
}

.edit-tab-body {
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-top: none;
    border-radius: 0 0 12px 12px;
    padding: 1.5rem;
}

/* Task types grid */
/* Task type groups */
.task-group {
    margin-bottom: 1rem;
}

.task-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
}

.task-group-icon {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--font-size-100);
    flex-shrink: 0;
}

.task-group-name {
    font-weight: 600;
    font-size: var(--font-size-100);
    color: var(--cl-text);
}

.task-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.6rem;
}

.task-type-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--cl-card);
    border: 2px solid var(--cl-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.task-type-card:hover {
    border-color: var(--card-accent, var(--cl-primary));
    background: var(--cl-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.task-type-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card-accent, var(--cl-primary));
    color: white;
    border-radius: 10px;
    font-size: var(--font-size-400);
    flex-shrink: 0;
}

.task-type-info {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.task-type-info strong {
    font-size: var(--font-size-100);
}

.task-type-info small {
    color: var(--cl-text-muted);
    font-size: var(--font-size-100);
}

/* Matching pair builder — two-column layout */
.mp-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 12px;
}
.mp-col-header {
    font-size: var(--font-size-100);
    font-weight: 600;
    color: var(--cl-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0 0 2px 6px;
}
.mp-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mp-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 8px;
    transition: opacity 0.2s, box-shadow 0.15s, transform 0.2s;
}
.mp-item:hover { border-color: var(--cl-primary-mid); }
.mp-item.mp-dragging { opacity: 0.35; }
.mp-item.mp-removing { opacity: 0; transform: translateX(30px); }

.mp-handle {
    cursor: grab;
    color: var(--cl-text-subtle);
    font-size: var(--font-size-300);
    flex-shrink: 0;
    padding: 0 2px;
}
.mp-handle:hover { color: var(--cl-primary); }
.mp-handle:active { cursor: grabbing; }

.mp-term, .mp-def { flex: 1; min-width: 0; }
.mp-del { flex-shrink: 0; }

.match-pair-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.5rem;
}

.match-pair-row input {
    flex: 1;
}

.match-pair-row .pair-arrow {
    color: var(--cl-primary);
    font-size: var(--font-size-500);
    flex-shrink: 0;
}

.match-pair-row .btn-remove-pair {
    flex-shrink: 0;
    color: var(--cl-danger);
    border: none;
    background: none;
    font-size: var(--font-size-300);
    cursor: pointer;
    padding: 0.25rem;
}

.task-builder {
    margin-bottom: 1rem;
}

/* Existing tasks list */
.practice-tasks-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.practice-task-item {
    background: var(--cl-bg-alt);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    border-left: 4px solid var(--cl-primary);
}

.practice-task-item-header {
    display: flex;
    align-items: center;
}

/* Practice task manager cards (pt-*) */
.pt-task-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pt-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 10px;
    padding: 0.65rem 0.75rem;
    transition: box-shadow 0.15s, border-color 0.15s, opacity 0.3s;
}

.pt-card:hover {
    border-color: var(--cl-primary);
    box-shadow: 0 2px 8px rgba(var(--cl-primary-rgb),0.10);
}

.pt-card.pt-dragging {
    opacity: 0.4;
    border-style: dashed;
}

.pt-card.pt-removing {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.3s;
}

.pt-card-handle {
    cursor: grab;
    color: var(--cl-text-subtle);
    font-size: var(--font-size-400);
    padding: 0 4px;
    flex-shrink: 0;
}

.pt-card-handle:hover { color: var(--cl-primary); }
.pt-card-handle:active { cursor: grabbing; }

.pt-card-body {
    flex: 1;
    min-width: 0;
}

.pt-card-title {
    display: flex;
    align-items: center;
    font-size: var(--font-size-100);
}

.pt-card-desc {
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pt-card-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

/* Hotkey editor rows (hk-*) */
.hk-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hk-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.5rem 0.75rem;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 8px;
}

.hk-row:hover { border-color: var(--cl-primary); }

.hk-kbd {
    background: var(--cl-primary-light);
    color: var(--cl-primary);
    border: 1px solid var(--cl-primary-light);
    border-radius: 6px;
    padding: 0.2rem 0.5rem;
    font-size: var(--font-size-100);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.hk-desc {
    flex: 1;
    font-size: var(--font-size-100);
    min-width: 0;
}

.hk-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.edit-actions {
    position: sticky;
    bottom: 0;
    background: var(--cl-card);
    padding: 1rem 0;
    border-top: 1px solid var(--cl-border);
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    z-index: 10;
}

/* ============================================================
   Theory WYSIWYG Editor (te-* classes)
   ============================================================ */
.te-wrap {
    border: 2px solid var(--cl-border);
    border-radius: 10px;
    overflow: visible;
    background: var(--cl-card);
}
.te-wrap.te-wrap-resizable {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: auto;
}

.te-wrap.te-wrap-resizable .te-toolbar,
.te-wrap.te-wrap-resizable .te-toolbar-actions {
    flex-shrink: 0;
}

.te-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0.75rem;
    background: var(--cl-bg-alt);
    border-bottom: 1px solid var(--cl-border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.te-toolbar-left { display: flex; gap: 2px; }

.te-mode-btn {
    border: none;
    background: transparent;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    font-size: var(--font-size-100);
    font-weight: 500;
    color: var(--cl-text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.te-mode-btn:hover { background: var(--cl-border); color: var(--cl-text); }
.te-mode-btn.active { background: var(--site-accent); color: var(--site-on-accent); }

/* --- Action toolbar (formatting buttons) --- */
.te-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 1px;
    padding: 0.25rem 0.5rem;
    background: var(--cl-card);
    border-bottom: 1px solid var(--cl-border);
    flex-wrap: wrap;
    position: sticky;
    top: 37px;
    z-index: 19;
}

.te-btn {
    border: none;
    background: transparent;
    padding: 0.28rem 0.42rem;
    border-radius: 5px;
    font-size: var(--font-size-100);
    color: var(--cl-text);
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
    display: flex;
    align-items: center;
    gap: 4px;
    line-height: 1;
}

.te-btn { position: relative; }
.te-btn:hover { background: var(--cl-primary-light); color: var(--cl-primary); }
.te-btn.te-btn-active { background: var(--site-accent); color: var(--site-on-accent); }
.te-btn::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--cl-text);
    color: #fff;
    font-size: var(--font-size-100);
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 5px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 30;
}
.te-btn:hover::after { opacity: 1; }

.te-btn span {
    font-size: var(--font-size-100);
    font-weight: 600;
}

/* Heading dropdown */
.te-heading-dropdown {
    display: flex;
    align-items: center;
}
.te-heading-select {
    border: 1px solid var(--cl-border);
    border-radius: 5px;
    background: var(--cl-card);
    color: var(--cl-text);
    font-size: var(--font-size-100);
    font-weight: 600;
    padding: 0.2rem 0.4rem;
    cursor: pointer;
    outline: none;
    transition: border-color 0.15s;
}
.te-heading-select:hover { border-color: var(--cl-primary); }
.te-heading-select:focus { border-color: var(--cl-primary); box-shadow: 0 0 0 2px rgba(var(--cl-primary-rgb), 0.15); }

.te-btn-sep {
    width: 1px;
    height: 16px;
    background: var(--cl-border);
    margin: 0 4px;
    flex-shrink: 0;
}

.te-btn-pagebreak {
    color: var(--cl-primary);
    border: 1px dashed var(--cl-primary);
    border-radius: 5px;
    padding: 0.2rem 0.55rem;
    margin-left: 2px;
}

.te-btn-pagebreak:hover {
    background: var(--cl-primary);
    color: var(--site-on-accent);
    border-style: solid;
}

/* Visual page-break in editor */
.te-editor hr {
    border: none;
    border-top: 2px dashed var(--cl-primary);
    margin: 1.75rem 0;
    position: relative;
}

.te-editor hr::before {
    content: '✂ разрыв страницы';
    position: absolute;
    top: -0.7em;
    left: 50%;
    transform: translateX(-50%);
    background: var(--cl-card);
    padding: 0 10px;
    font-size: var(--font-size-100);
    color: var(--cl-primary);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
}

.te-hint {
    font-size: var(--font-size-100);
    color: var(--cl-text-muted);
}

.te-editor {
    position: relative;
    min-height: 300px;
    overflow-y: visible;
    padding: 1.5rem;
    outline: none;
    cursor: text;
}

/* Headings in editor */
.te-editor h1 { font-size: var(--font-size-800); font-weight: 700; margin: 1.5rem 0 0.75rem; }
.te-editor h2 { font-size: var(--font-size-600); font-weight: 700; margin: 1.25rem 0 0.6rem; }
.te-editor h3 { font-size: var(--font-size-500); font-weight: 700; margin: 1rem 0 0.5rem; }
.te-editor h4 { font-size: var(--font-size-400); font-weight: 700; margin: 0.85rem 0 0.4rem; }
.te-editor h5 { font-size: var(--font-size-300); font-weight: 700; margin: 0.75rem 0 0.35rem; }
.te-editor h6 { font-size: var(--font-size-200); font-weight: 700; margin: 0.65rem 0 0.3rem; }

.te-wrap.te-wrap-resizable .te-editor,
.te-wrap.te-wrap-resizable .te-source {
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    max-height: none;
}

.te-wrap.te-wrap-resizable .te-source {
    resize: none;
}

.cl-resize-handle {
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    cursor: ns-resize;
    background: var(--cl-card);
    border-top: 1px solid var(--cl-border);
    touch-action: none;
    user-select: none;
}

.cl-resize-grip {
    width: 48px;
    height: 6px;
    border-radius: 999px;
    background: var(--cl-border);
    transition: background-color 0.15s ease, transform 0.15s ease;
}

.cl-resize-handle:hover .cl-resize-grip,
.cl-resize-handle.active .cl-resize-grip {
    background: var(--cl-text-muted);
    transform: scaleX(1.06);
}

body.cl-resize-active {
    cursor: ns-resize;
    user-select: none;
}

.te-editor img {
    cursor: pointer;
    max-width: 100%;
    transition: box-shadow 0.15s;
}

.te-editor img:hover {
    box-shadow: 0 0 0 2px rgba(var(--cl-primary-rgb),0.3);
}

/* Image drag & drop from desktop */
.te-drop-active {
    outline: 2px dashed var(--cl-primary) !important;
    outline-offset: -2px;
    background: rgba(var(--cl-primary-rgb), 0.04) !important;
}
.te-drop-caret {
    position: absolute;
    width: 2px;
    background: var(--cl-primary);
    border-radius: 1px;
    pointer-events: none;
    z-index: 10;
    animation: te-drop-caret-blink 0.8s ease-in-out infinite;
}
@keyframes te-drop-caret-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Image overlay & tools */
.te-img-overlay {
    position: absolute;
    border: 2px solid var(--cl-primary);
    pointer-events: none;
    z-index: 40;
    box-sizing: border-box;
}

.te-img-handle {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--cl-primary);
    border: 2px solid #fff;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
    pointer-events: auto;
    touch-action: none;
    z-index: 42;
}

.te-img-handle--e {
    top: 50%;
    right: -8px;
    transform: translateY(-50%);
    cursor: ew-resize;
}

.te-img-handle--s {
    left: 50%;
    bottom: -8px;
    transform: translateX(-50%);
    cursor: ns-resize;
}

.te-img-handle--se {
    right: -8px;
    bottom: -8px;
    width: 18px;
    height: 18px;
    cursor: nwse-resize;
}

.te-img-toolbar {
    position: absolute;
    top: -42px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 2px;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 8px;
    padding: 3px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    pointer-events: auto;
    z-index: 43;
}

.te-img-tb-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cl-text-muted);
    font-size: var(--font-size-100);
    transition: background 0.15s, color 0.15s;
}

.te-img-tb-btn:hover {
    background: var(--cl-primary-light);
    color: var(--cl-primary);
}

.te-img-tb-btn.active {
    background: var(--cl-primary);
    color: var(--site-on-accent);
}

.te-img-tb-btn--reset {
    margin-left: 4px;
}

body.te-img-resizing {
    user-select: none;
}

.te-editor:focus {
    box-shadow: inset 0 0 0 2px rgba(var(--cl-primary-rgb),0.12);
}

.te-editor:empty::before {
    content: 'Начните писать или нажмите ПКМ для вставки блоков...';
    color: var(--cl-text-subtle);
    pointer-events: none;
}

.te-source {
    min-height: 300px;
    border: none !important;
    border-radius: 0 !important;
    resize: none;
    overflow: hidden;
}

.task-editor-code-shell {
    display: flex;
    flex-direction: column;
    height: 320px;
    min-height: 220px;
    background: #282a36;
    border-radius: 8px;
    overflow: hidden;
}

.task-editor-code {
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    resize: none;
    border-radius: 0;
}

.task-editor-code-shell .cl-resize-handle {
    background: #242633;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.task-editor-code-shell .cl-resize-grip {
    background: rgba(248,248,242,0.35);
}

.task-editor-code-shell .cl-resize-handle:hover .cl-resize-grip,
.task-editor-code-shell .cl-resize-handle.active .cl-resize-grip {
    background: rgba(248,248,242,0.62);
}

/* --- Context Menu --- */
.te-ctx {
    position: fixed;
    z-index: 10000;
    min-width: 220px;
    background: var(--cl-card);
    border: 1px solid var(--cl-border);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
    padding: 4px;
    font-size: var(--font-size-100);
}

.te-ctx-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    transition: background 0.1s;
}

.te-ctx-item:hover {
    background: var(--cl-primary-light);
}

.te-ctx-icon {
    width: 20px;
    text-align: center;
    color: var(--cl-primary);
    font-size: var(--font-size-100);
    flex-shrink: 0;
}

.te-ctx-label {
    flex: 1;
}

.te-ctx-shortcut {
    font-size: var(--font-size-100);
    color: var(--cl-text-subtle);
    margin-left: 16px;
}

.te-ctx-arrow {
    font-size: var(--font-size-100);
    color: var(--cl-text-subtle);
    margin-left: 8px;
}

.te-ctx-divider {
    height: 1px;
    background: var(--cl-border);
    margin: 4px 8px;
}

/* Submenu */
.te-ctx-sub {
    display: none;
    position: absolute;
    left: 100%;
    top: -4px;
    margin-left: 2px;
}

.te-has-sub:hover > .te-ctx-sub {
    display: block;
}

/* if submenu goes off-screen right, flip left */
.te-ctx-sub.flip-left {
    left: auto;
    right: 100%;
    margin-left: 0;
    margin-right: 2px;
}