/* ==========================================================================
   Koch School LMS — Этап 3: конструктор курса/урока, сотрудники, ветка,
   аналитика. Только новые компоненты и модификаторы поверх этапа 1.
   Подключается ПОСЛЕ tokens/base/components/shell.
   ========================================================================== */

/* ---- Шапка конструктора ------------------------------------------------ */

.builder-head { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-6); }
.builder-head__back { display: inline-flex; align-items: center; gap: 6px; font-size: var(--text-sm); font-weight: 700; color: var(--fg-2); min-height: 32px; padding: 0 8px 0 4px; border-radius: 8px; transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease); }
.builder-head__back:hover { color: var(--fg); background: var(--surface-2); }
.builder-head__sep { width: 1px; height: 20px; background: var(--border); }
.builder-head__spacer { flex: 1; }

.autosave { display: inline-flex; align-items: center; gap: 7px; font-size: var(--text-sm); color: var(--fg-2); white-space: nowrap; font-variant-numeric: tabular-nums; }
.autosave__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--fg-3); flex-shrink: 0; }
.autosave.is-saving .autosave__dot { background: var(--fg); animation: autosave-pulse 1s var(--ease) infinite; }
.autosave.is-saved .autosave__dot { background: var(--success); }
@keyframes autosave-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

.status-toggle { cursor: pointer; height: 26px; padding: 0 10px; gap: 7px; transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease); }
.status-toggle:hover { border-color: var(--fg); color: var(--fg); }
.status-toggle .icon { width: 12px; height: 12px; }

/* ---- Раскладка конструктора ------------------------------------------- */

.builder { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: var(--s-6); align-items: start; }
.builder__main { display: flex; flex-direction: column; gap: var(--s-4); min-width: 0; }
.builder__side { position: sticky; top: calc(var(--topbar-h) + var(--s-6)); display: flex; flex-direction: column; gap: var(--s-3); }
.builder .card__head { align-items: center; margin-bottom: var(--s-4); }
.builder .card__title { font-size: var(--text-h3); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
.input-wrap--suffix .input { padding-left: var(--s-3); padding-right: 36px; }
.form-stack { display: flex; flex-direction: column; gap: var(--s-4); }

.side-stats { display: flex; flex-direction: column; }
.side-stats__row { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-3); padding: 10px 0; border-bottom: 1px solid var(--border); font-size: var(--text-sm); }
.side-stats__row:last-child { border-bottom: 0; }
.side-stats__row dt { color: var(--fg-2); }
.side-stats__row dd { font-weight: 700; font-variant-numeric: tabular-nums; }

/* блок заблокирован (новый курс) */
.card.is-locked .card__title { color: var(--fg-2); }
.card.is-locked .lock-body { opacity: 0.45; pointer-events: none; user-select: none; filter: grayscale(1); }

/* ---- HTML-редактор (монохромная панель) --------------------------------- */

.editor { border: 1px solid var(--border-strong); border-radius: var(--r-field); background: var(--bg); overflow: hidden; transition: border-color var(--dur-fast) var(--ease); }
.editor:hover { border-color: var(--border-strong); }
.editor:focus-within { border-color: var(--fg); }
.editor__bar { display: flex; align-items: center; gap: 2px; padding: 6px; border-bottom: 1px solid var(--border); background: var(--surface); flex-wrap: wrap; }
.editor__btn { width: 30px; height: 30px; border-radius: 6px; display: grid; place-items: center; color: var(--fg-2); font-size: 13px; font-weight: 700; line-height: 1; transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.editor__btn:hover { background: var(--surface-3); color: var(--fg); }
.editor__btn.is-active { background: var(--fg); color: var(--inverse-fg); }
.editor__btn .icon { width: 16px; height: 16px; }
.editor__btn--i { font-style: italic; font-family: Georgia, 'Times New Roman', serif; font-weight: 400; font-size: 15px; }
.editor__btn--u { text-decoration: underline; text-underline-offset: 2px; }
.editor__sep { width: 1px; height: 18px; background: var(--border); margin: 0 4px; }
.editor__mode { margin-left: auto; font-size: var(--text-xs); font-weight: 700; color: var(--fg-3); letter-spacing: var(--tracking-caps); text-transform: uppercase; padding: 0 8px; height: 30px; border-radius: 6px; }
.editor__mode:hover { color: var(--fg); background: var(--surface-3); }
.editor__area { min-height: 150px; padding: 12px 14px; font-size: var(--text-md); line-height: 1.55; outline: none; }
.editor__area:empty::before { content: attr(data-placeholder); color: var(--fg-3); pointer-events: none; }
.editor__area p + p { margin-top: 0.6em; }
.editor__area ul { list-style: disc; padding-left: 1.3em; margin: 0.5em 0; }
.editor__area ol { list-style: decimal; padding-left: 1.3em; margin: 0.5em 0; }
.editor__area a { text-decoration: underline; text-underline-offset: 2px; }
.editor--sm .editor__area { min-height: 96px; }
.editor.is-error { border-color: var(--error); }

/* ---- Обложка и медиабиблиотека ---------------------------------------- */

.cover-pick { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: var(--s-4); align-items: start; }
.cover-pick__preview { aspect-ratio: 16 / 9; border-radius: var(--r-field); border: 1px solid var(--border); background: var(--surface-2); position: relative; overflow: hidden; display: grid; place-items: center; color: var(--fg-3); }
.cover-pick__preview .cover-art { position: absolute; inset: 0; width: 100%; height: 100%; }
.cover-pick__preview.is-empty .cover-art { display: none; }
.cover-pick__meta { display: flex; flex-direction: column; gap: 10px; }
.cover-pick__file { font-size: var(--text-sm); color: var(--fg-2); display: flex; align-items: center; gap: 8px; }
.cover-pick__file b { color: var(--fg); font-weight: 700; }

.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 10px; }
.media-tile { position: relative; border: 1px solid var(--border); border-radius: var(--r-field); background: var(--bg); overflow: hidden; cursor: pointer; text-align: left; transition: border-color var(--dur-fast) var(--ease); }
.media-tile:hover { border-color: var(--border-strong); }
.media-tile.is-selected { border-color: var(--fg); box-shadow: 0 0 0 1px var(--fg); }
.media-tile__img { aspect-ratio: 4 / 3; background: var(--surface-2); position: relative; }
.media-tile__img .cover-art { position: absolute; inset: 0; width: 100%; height: 100%; }
.media-tile__name { padding: 6px 8px; font-size: var(--text-xs); color: var(--fg-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.media-tile__check { position: absolute; top: 6px; right: 6px; width: 20px; height: 20px; border-radius: 50%; background: var(--fg); color: var(--inverse-fg); display: grid; place-items: center; opacity: 0; transform: scale(0.9); transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease); }
.media-tile__check .icon { width: 12px; height: 12px; stroke-width: 2.5; }
.media-tile.is-selected .media-tile__check { opacity: 1; transform: none; }
.media-tile--upload { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border-style: dashed; border-color: var(--border-strong); color: var(--fg-2); font-size: var(--text-xs); font-weight: 700; min-height: 100%; }
.media-tile--upload:hover { color: var(--fg); border-color: var(--fg); }

/* ---- Уроки курса: модули и строки с DnD -------------------------------- */

.module { border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; background: var(--bg); }
.module + .module { margin-top: var(--s-3); }
.module__head { display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 6px 10px 6px 8px; background: var(--surface); border-bottom: 1px solid var(--border); font-size: var(--text-sm); }
.module__title { font-weight: 700; flex: 1; min-width: 0; }
.module__count { color: var(--fg-3); font-size: var(--text-xs); font-variant-numeric: tabular-nums; }
.module__body:empty::after { content: 'Уроков пока нет. Нажмите «+ Урок».'; display: block; padding: 20px 14px; color: var(--fg-2); font-size: var(--text-sm); text-align: center; }

.lesson-row { display: grid; grid-template-columns: 28px 28px minmax(0, 1fr) auto 32px; gap: 10px; align-items: center; min-height: 48px; padding: 6px 10px 6px 6px; border-bottom: 1px solid var(--border); background: var(--bg); transition: background-color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease); }
.lesson-row:last-child { border-bottom: 0; }
.lesson-row:hover { background: var(--surface); }
.lesson-row.is-dragging { opacity: 0.35; }
.lesson-row.is-over { box-shadow: inset 0 2px 0 var(--fg); }
.lesson-row__num { font-size: var(--text-xs); color: var(--fg-3); font-variant-numeric: tabular-nums; text-align: center; }
.lesson-row__title { font-weight: 700; font-size: var(--text-sm); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lesson-row__title:hover { text-decoration: underline; text-underline-offset: 3px; }
.lesson-row__parts { font-size: var(--text-xs); color: var(--fg-2); margin-top: 1px; }
.lesson-row__parts .off { color: var(--fg-3); text-decoration: line-through; }
.lesson-row__dur { font-size: var(--text-sm); color: var(--fg-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lesson-row .btn--icon { opacity: 0.6; }
.lesson-row:hover .btn--icon { opacity: 1; }

.drag-handle { width: 28px; height: 32px; display: grid; place-items: center; color: var(--fg-3); border-radius: 6px; cursor: grab; flex-shrink: 0; touch-action: none; transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease); }
.drag-handle:hover { color: var(--fg); background: var(--surface-2); }
.drag-handle:active { cursor: grabbing; }
.drag-handle .icon { width: 16px; height: 16px; }

/* ---- Конструктор урока: название, темы, блоки --------------------------- */

.title-input { font-size: 22px; font-weight: 700; letter-spacing: var(--tracking-display); min-height: 52px; padding: 0 16px; }
.title-input::placeholder { font-weight: 700; }

.builder-tabs { margin-bottom: var(--s-5); }
.builder-tabs .tab__count { margin-left: 2px; }

.topic { border: 1px solid var(--border); border-radius: var(--r-card); background: var(--bg); }
.topic + .topic { margin-top: var(--s-3); }
.topic__head { display: grid; grid-template-columns: 28px auto minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 10px 8px 6px; border-bottom: 1px solid var(--border); background: var(--surface); border-radius: var(--r-card) var(--r-card) 0 0; }
.topic__num { font-size: var(--text-xs); font-weight: 700; color: var(--fg-2); letter-spacing: var(--tracking-caps); text-transform: uppercase; white-space: nowrap; }
.topic__head .input { min-height: 36px; font-weight: 700; }
.topic__body { padding: var(--s-4); display: flex; flex-direction: column; gap: var(--s-3); }
.topic__body:empty { padding: 0; }
.topic__foot { display: flex; gap: 8px; padding: 0 var(--s-4) var(--s-4); flex-wrap: wrap; }
.topic__actions { display: flex; gap: 2px; }

.block { border: 1px solid var(--border); border-radius: var(--r-field); background: var(--bg); }
.block.is-dragging { opacity: 0.35; }
.block.is-over { box-shadow: inset 0 2px 0 var(--fg); }
.block__head { display: flex; align-items: center; gap: 6px; padding: 4px 6px 4px 2px; border-bottom: 1px solid var(--border); background: var(--surface); border-radius: var(--r-field) var(--r-field) 0 0; }
.block__type { font-size: var(--text-xs); font-weight: 700; color: var(--fg-2); letter-spacing: var(--tracking-caps); text-transform: uppercase; display: inline-flex; align-items: center; gap: 6px; flex: 1; }
.block__type .icon { width: 14px; height: 14px; }
.block__body { padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.block__body .editor { border-color: var(--border); }
.block__row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: end; }
.block__or { font-size: var(--text-xs); color: var(--fg-3); text-align: center; padding: 0 4px; align-self: center; margin-bottom: 10px; }
.media-preview { max-width: 480px; }
.media-preview .video { border-radius: var(--r-field); }
.media-preview .video__play { width: 48px; height: 48px; }
.media-preview .video__play .icon { width: 18px; height: 18px; }
.media-preview__src { position: absolute; left: 12px; top: 10px; z-index: 1; font-size: var(--text-xs); font-weight: 700; color: var(--inverse-fg-2); letter-spacing: var(--tracking-caps); text-transform: uppercase; }
.media-preview--image .video { background: var(--surface-2); color: var(--fg-3); }
.media-preview--image .video__poster { background: var(--surface-2); }

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

/* ---- Вопросы (практика / ДЗ) ------------------------------------------- */

.question { border: 1px solid var(--border); border-radius: var(--r-card); background: var(--bg); }
.question + .question { margin-top: var(--s-3); }
.question.is-dragging { opacity: 0.35; }
.question.is-over { box-shadow: inset 0 2px 0 var(--fg); }
.question__head { display: grid; grid-template-columns: 28px 28px minmax(0, 1fr) auto auto; gap: 8px; align-items: center; padding: 8px 10px 8px 6px; border-bottom: 1px solid var(--border); background: var(--surface); border-radius: var(--r-card) var(--r-card) 0 0; }
.question__num { font-size: var(--text-sm); font-weight: 700; color: var(--fg); text-align: center; font-variant-numeric: tabular-nums; }
.question__type { font-size: var(--text-xs); font-weight: 700; color: var(--fg-2); letter-spacing: var(--tracking-caps); text-transform: uppercase; }
.question__head .select { min-height: 34px; font-size: var(--text-sm); width: auto; min-width: 240px; padding-right: 32px; }
.question__body { padding: var(--s-4); display: flex; flex-direction: column; gap: 12px; }
.question__body .textarea { min-height: 64px; }
.q-options { display: flex; flex-direction: column; gap: 8px; }
.q-option { display: grid; grid-template-columns: 20px minmax(0, 1fr) 32px; gap: 10px; align-items: center; }
.q-option .check { min-height: 0; }
.q-option .input { min-height: 38px; }
.q-option.is-correct .input { border-color: var(--success-border); background: var(--success-bg); }
.q-pair { display: grid; grid-template-columns: minmax(0, 1fr) 20px minmax(0, 1fr) 32px; gap: 8px; align-items: center; }
.q-pair__arrow { color: var(--fg-3); display: grid; place-items: center; }
.q-pair__arrow .icon { width: 14px; height: 14px; }
.q-pair .input { min-height: 38px; }
.q-pair-head { display: grid; grid-template-columns: minmax(0, 1fr) 20px minmax(0, 1fr) 32px; gap: 8px; font-size: var(--text-xs); color: var(--fg-2); font-weight: 700; }
.q-open { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px dashed var(--border-strong); border-radius: var(--r-field); font-size: var(--text-sm); color: var(--fg-2); background: var(--surface); }
.q-open .icon { color: var(--fg-3); flex-shrink: 0; }
.q-hint { font-size: var(--text-xs); color: var(--fg-3); }

/* ---- Сотрудники --------------------------------------------------------- */

.progress-mini { width: 140px; }
.progress-mini .progress__label { min-width: 36px; }
.table td .avatar--sm { --size: 30px; font-size: 11px; }
.table .cell-main a:hover { text-decoration: underline; text-underline-offset: 3px; }

.emp-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: var(--s-6); align-items: start; }
.emp-grid__col { display: flex; flex-direction: column; gap: var(--s-4); min-width: 0; }
.table--progress td.num, .table--progress th.num, .table--progress .inline-code, .table--progress .progress-mini { white-space: nowrap; }
.table--progress td:first-child { min-width: 240px; }
.emp-head { display: flex; align-items: center; gap: var(--s-4); margin-bottom: var(--s-6); }
.emp-head .avatar--lg { --size: 56px; }
.emp-head__name { font-size: var(--text-h1); font-weight: 700; letter-spacing: var(--tracking-display); line-height: 1.15; }
.emp-head__sub { color: var(--fg-2); font-size: var(--text-sm); margin-top: 4px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.access-row { display: flex; align-items: center; gap: var(--s-3); min-height: 48px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.access-row:last-of-type { border-bottom: 0; }
.access-row .check { flex: 1; min-width: 0; min-height: 0; }
.access-row .check__text { font-size: var(--text-sm); font-weight: 700; }
.access-row .check__text small { font-weight: 400; }
.access-row .badge { flex-shrink: 0; }

/* ---- Моя ветка ---------------------------------------------------------- */

.kpi-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.kpi-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.kpi__value .unit { font-size: 0.5em; font-weight: 700; color: var(--fg-2); letter-spacing: 0; margin-left: 2px; }

.dl { border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; background: var(--bg); }
.dl-node { }
.dl-row { display: grid; grid-template-columns: 24px minmax(0, 1fr) 90px 200px auto; gap: var(--s-3); align-items: center; min-height: 56px; padding: 8px 12px 8px 8px; border-bottom: 1px solid var(--border); transition: background-color var(--dur-fast) var(--ease); }
.dl-row:hover { background: var(--surface); }
.dl-node:last-child > .dl-row:last-child { border-bottom: 0; }
.dl-toggle { width: 24px; height: 24px; border-radius: 6px; display: grid; place-items: center; color: var(--fg-3); transition: transform var(--dur-in) var(--ease), background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.dl-toggle:hover { background: var(--surface-3); color: var(--fg); }
.dl-toggle .icon { width: 14px; height: 14px; }
.dl-node.is-expanded > .dl-row .dl-toggle { transform: rotate(90deg); }
.dl-toggle--leaf { visibility: hidden; }
.dl-row__who { display: flex; align-items: center; gap: 10px; min-width: 0; }
.dl-row__name { font-weight: 700; font-size: var(--text-sm); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.dl-row__sub { font-size: var(--text-xs); color: var(--fg-2); margin-top: 1px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dl-row__courses { font-size: var(--text-sm); color: var(--fg-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.dl-row__actions { display: flex; gap: 6px; justify-content: flex-end; }
.dl-row__actions .btn { opacity: 0.75; }
.dl-row:hover .dl-row__actions .btn { opacity: 1; }
.dl-children { display: none; background: var(--surface); border-bottom: 1px solid var(--border); }
.dl-node.is-expanded > .dl-children { display: block; }
.dl-node:last-child > .dl-children { border-bottom: 0; }
.dl-children .dl-row { padding-left: 40px; background: var(--surface); position: relative; }
.dl-children .dl-row:hover { background: var(--surface-2); }
.dl-children .dl-row::before { content: ''; position: absolute; left: 20px; top: 0; bottom: 0; border-left: 1px solid var(--border); }
.dl-children .dl-row:last-child::before { bottom: 50%; }
.dl-children .dl-row::after { content: ''; position: absolute; left: 20px; top: 50%; width: 10px; border-top: 1px solid var(--border); }
.dl-children .dl-node:last-child > .dl-row { border-bottom: 0; }
.dl-group { padding: 6px 12px 6px 40px; font-size: 11px; font-weight: 700; letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-3); background: var(--surface); border-bottom: 1px solid var(--border); }
.dl-row.is-hidden { display: none; }

.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: var(--s-4); }
.toolbar .input-wrap { flex: 1 1 260px; max-width: 420px; }

/* ---- Аналитика ---------------------------------------------------------- */

.filters--analytics .field { min-width: 180px; flex: 1 1 180px; }
.filters--analytics .field--period { flex: 2 1 360px; }
.period-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.date-range { display: flex; align-items: center; gap: 6px; }
.date-range .input { min-width: 0; width: 140px; min-height: 40px; font-size: var(--text-sm); font-variant-numeric: tabular-nums; }
.date-range .sep { color: var(--fg-3); }
.compare-toggle { display: inline-flex; align-items: center; gap: 10px; font-size: var(--text-sm); font-weight: 700; cursor: pointer; min-height: 40px; }

/* .delta — см. components.css (этап 6) */

.chart { position: relative; }
.chart__head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-4); }
.chart__legend { display: flex; gap: 16px; font-size: var(--text-sm); color: var(--fg-2); flex-wrap: wrap; }
.chart__legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart__swatch { width: 10px; height: 10px; border-radius: 2px; background: var(--fg); display: inline-block; }
.chart__swatch--prev { background: var(--surface-3); border: 1px solid var(--border-strong); }
.chart__svg { width: 100%; height: 260px; display: block; overflow: visible; }
.chart__grid { stroke: var(--border); }
.chart__axis { font-size: 11px; fill: var(--fg-3); font-family: inherit; font-variant-numeric: tabular-nums; }
.chart__bar { fill: var(--fg); transition: opacity var(--dur-fast) var(--ease); }
.chart__bar--prev { fill: var(--surface-3); }
.chart__hit { fill: transparent; }
.chart.is-hover .chart__bar { opacity: 0.4; }
.chart.is-hover .chart__group.is-active .chart__bar { opacity: 1; }
.chart__group.is-active .chart__bar--prev { fill: var(--border-strong); }
.chart__tip { position: absolute; top: 0; left: 0; pointer-events: none; background: var(--fg); color: var(--inverse-fg); padding: 8px 10px; border-radius: 8px; font-size: var(--text-xs); white-space: nowrap; opacity: 0; transform: translate(-50%, -100%) translateY(-10px); transition: opacity var(--dur-fast) var(--ease); z-index: 2; line-height: 1.4; }
.chart__tip.is-visible { opacity: 1; }
.chart__tip b { display: block; font-size: var(--text-sm); font-weight: 700; font-variant-numeric: tabular-nums; }
.chart__tip .prev { color: var(--inverse-fg-2); }
.chart__empty { padding: var(--s-10) 0; text-align: center; color: var(--fg-2); font-size: var(--text-sm); }

.report-banner { display: flex; align-items: center; gap: 10px; padding: 6px 6px 6px 14px; border: 1px solid var(--border); background: var(--surface); border-radius: var(--r-field); font-size: var(--text-sm); margin-bottom: var(--s-4); }
.report-banner b { font-weight: 700; }
.report-banner .btn--icon { margin-left: auto; }

.table th[data-sort] { cursor: pointer; user-select: none; transition: color var(--dur-fast) var(--ease); }
.table th[data-sort]:hover { color: var(--fg); }
.table th[data-sort]::after { content: '↕'; display: inline-block; margin-left: 5px; color: var(--fg-3); font-weight: 400; opacity: 0.7; }
.table th[data-sort].is-asc::after { content: '↑'; color: var(--fg); opacity: 1; }
.table th[data-sort].is-desc::after { content: '↓'; color: var(--fg); opacity: 1; }
.table th[data-sort].is-asc, .table th[data-sort].is-desc { color: var(--fg); }

.spark { display: inline-flex; align-items: flex-end; gap: 2px; height: 18px; vertical-align: middle; margin-right: 8px; }
.spark i { display: block; width: 3px; background: var(--border-strong); border-radius: 1px; }
.spark i:last-child { background: var(--fg); }

.two-col { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: var(--s-4); align-items: start; }
.two-col .table td.num, .two-col .table th.num, .two-col .table .cell-sub { white-space: nowrap; }
.two-col .table th:first-child, .two-col .table td:first-child { min-width: 220px; }

/* ---- Прочее ------------------------------------------------------------- */

.page-actions { display: flex; align-items: center; gap: var(--s-2); flex-wrap: wrap; }
.topbar__actions .btn .btn__label { display: inline; }
.inline-code { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; font-weight: 700; }
.row-link { cursor: pointer; }
.hint--inline { display: inline-flex; align-items: center; gap: 6px; }
.hint--inline .icon { width: 14px; height: 14px; }

/* ==========================================================================
   Планшет (769–1100px)
   ========================================================================== */

@media (max-width: 1100px) and (min-width: 769px) {
  .builder { grid-template-columns: minmax(0, 1fr) 280px; gap: var(--s-5); }
  .emp-grid { grid-template-columns: minmax(0, 1fr) 320px; }
  .kpi-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .two-col { grid-template-columns: minmax(0, 1fr); }
  .dl-row { grid-template-columns: 24px minmax(0, 1fr) 80px 140px auto; }
}

/* ==========================================================================
   Мобильный (≤768px)
   ========================================================================== */

@media (max-width: 768px) {
  .builder-head { gap: 8px; margin-bottom: var(--s-5); }
  .builder-head__sep { display: none; }
  .builder-head__spacer { flex-basis: 100%; height: 0; }
  .autosave { font-size: var(--text-xs); }

  .builder { grid-template-columns: minmax(0, 1fr); gap: var(--s-4); }
  .builder__side { position: static; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .cover-pick { grid-template-columns: minmax(0, 1fr); }
  .topbar__actions .btn .btn__label { display: none; }
  .topbar__actions .btn--primary { --btn-px: 12px; }
  .topbar__actions .btn--primary .btn__label { display: inline; }

  .lesson-row { grid-template-columns: 28px minmax(0, 1fr) 32px; grid-template-areas: 'h main del' 'h dur del'; row-gap: 2px; }
  .lesson-row .drag-handle { grid-area: h; }
  .lesson-row__num { display: none; }
  .lesson-row__main { grid-area: main; }
  .lesson-row__dur { grid-area: dur; font-size: var(--text-xs); }
  .lesson-row .btn--icon { grid-area: del; opacity: 1; }

  .title-input { font-size: 18px; min-height: 48px; }
  .builder-tabs .tab { padding: 0 10px; }
  .topic__head { grid-template-columns: 28px minmax(0, 1fr) auto; }
  .topic__num { display: none; }
  .block__row { grid-template-columns: minmax(0, 1fr); }
  .block__or { margin-bottom: 0; }
  .question__head { grid-template-columns: 28px 28px minmax(0, 1fr) auto; grid-template-areas: 'h n type del' 'h h select select'; row-gap: 8px; }
  .question__head .drag-handle { grid-area: h; }
  .question__num { grid-area: n; }
  .question__type { grid-area: type; }
  .question__head .select { grid-area: select; min-width: 0; width: 100%; }
  .question__head .btn--icon { grid-area: del; }
  .q-pair, .q-pair-head { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 32px; }
  .q-pair__arrow, .q-pair-head .q-pair__arrow { display: none; }

  .emp-grid { grid-template-columns: minmax(0, 1fr); gap: var(--s-4); }
  .emp-head .avatar--lg { --size: 48px; }
  .emp-head__name { font-size: 22px; }
  .progress-mini { width: 96px; }

  .kpi-grid, .kpi-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi-grid .kpi { padding: 12px 14px; }
  .kpi-grid .kpi__label { margin-bottom: 6px; font-size: var(--text-xs); }
  .kpi-grid .kpi__value { font-size: 24px; white-space: nowrap; }
  .kpi-grid .kpi:first-child { grid-column: 1 / -1; }
  .kpi-grid--4 .kpi:first-child { grid-column: auto; }
  .kpi-grid--4 .kpi__delta .muted { display: none; }

  .dl-row { grid-template-columns: 24px minmax(0, 1fr); grid-template-areas: 't who' 't meta' 't actions'; row-gap: 8px; padding: 10px 12px 10px 8px; }
  .dl-row .dl-toggle { grid-area: t; align-self: start; margin-top: 6px; }
  .dl-row__who { grid-area: who; }
  .dl-row__meta { grid-area: meta; display: flex; align-items: center; gap: 10px; }
  .dl-row__meta .progress-row { flex: 1; }
  .dl-row__actions { grid-area: actions; justify-content: flex-start; }
  .dl-row__actions .btn { opacity: 1; flex: 1; }
  .dl-children .dl-row { padding-left: 32px; }
  .dl-children .dl-row::before, .dl-children .dl-row::after { display: none; }
  .dl-group { padding-left: 32px; }
  .toolbar .input-wrap { flex-basis: 100%; max-width: none; }

  .filters--analytics .field, .filters--analytics .field--period { flex: 1 1 100%; }
  .date-range { flex-wrap: wrap; }
  .date-range .input { width: calc(50% - 14px); flex: 1 1 auto; }
  .chart__svg { height: 200px; }
  .two-col { grid-template-columns: minmax(0, 1fr); }
  .report-banner { font-size: var(--text-xs); }
}