diff --git a/frontend/admin.html b/frontend/admin.html
index b52b9a7..2eba1d1 100644
--- a/frontend/admin.html
+++ b/frontend/admin.html
@@ -1982,6 +1982,21 @@
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diff --git a/frontend/js/admin/_shared.js b/frontend/js/admin/_shared.js
new file mode 100644
index 0000000..be6ed2d
--- /dev/null
+++ b/frontend/js/admin/_shared.js
@@ -0,0 +1,129 @@
+'use strict';
+/* Admin shared helpers — referenced by admin.js orchestrator + every section module.
+ * Exposed on window.AdminCtx (filled by admin.js after LS.initPage()) and
+ * on window directly for utility functions used by HTML onclicks.
+ */
+(function () {
+ 'use strict';
+
+ /* ─── Constants ─── */
+ const MODES = { exam:'Экзамен', practice:'Тренировка', repeat:'Обычный', ct:'ЦТ/ЦЭ', topic:'По теме', random:'Случайный' };
+ const DIFFS = { 1:'Лёгкий', 2:'Средний', 3:'Сложный' };
+ const DIFF_LABELS = DIFFS;
+ const TYPE_LABELS = { single:'Один', multi:'Несколько', true_false:'Верно/Нет', short_answer:'Краткий', matching:'Сопоставление' };
+
+ /* ─── Generic formatters ─── */
+ function pctClass(p) { return p === null ? '' : p >= 75 ? 'pct-hi' : p >= 50 ? 'pct-mid' : 'pct-lo'; }
+ function fmtDate(d) { return new Date(d).toLocaleDateString('ru', { day:'numeric', month:'short', year:'numeric' }); }
+ function fmtTime(sec) {
+ if (!sec || sec < 0) return '—';
+ const m = Math.floor(sec / 60), s = sec % 60;
+ return m ? `${m} мин ${s} сек` : `${s} сек`;
+ }
+ function fmtDuration(sec) {
+ if (!sec || sec < 0) return '—';
+ const h = Math.floor(sec / 3600), m = Math.floor((sec % 3600) / 60), s = sec % 60;
+ if (h) return `${h}ч ${m}м`;
+ if (m) return `${m} мин ${s} сек`;
+ return `${s} сек`;
+ }
+
+ /* ─── KaTeX rendering ─── */
+ const KATEX_OPTS = {
+ delimiters: [
+ { left: '\\(', right: '\\)', display: false },
+ { left: '\\[', right: '\\]', display: true },
+ ],
+ throwOnError: false,
+ };
+ function renderMath(el) {
+ if (!el) return;
+ const run = () => { if (window.renderMathInElement) renderMathInElement(el, KATEX_OPTS); };
+ if (window._katexReady) run(); else window._katexCb = run;
+ }
+
+ /* ─── Question type badges (used by tests + subjects sections) ─── */
+ function qTypeBadge(type) {
+ const MAP = { single:'Один', multi:'Несколько', true_false:'Верно/Нет', short_answer:'Ответ', matching:'Сопост.' };
+ const CLR = { single:'rgba(155,93,229,0.12)', multi:'rgba(6,214,224,0.12)', true_false:'rgba(255,179,71,0.14)', short_answer:'rgba(6,214,100,0.12)', matching:'rgba(241,91,181,0.10)' };
+ const TXT = { single:'var(--violet)', multi:'#05aab3', true_false:'var(--amber)', short_answer:'var(--green)', matching:'var(--pink)' };
+ return `${MAP[type]||type}`;
+ }
+
+ function qOptsPreview(q) {
+ if (q.type === 'short_answer') return q.correct_text ? `Ответ: ${esc(q.correct_text)}` : '';
+ if (!q.options?.length) return '';
+ const correct = q.options.filter(o => o.is_correct).map(o => esc(o.text)).join(', ');
+ return ` ${correct}`;
+ }
+
+ /* ─── Pagination controls (users + future tables) ─── */
+ function ensurePgnStyles() {
+ if (document.getElementById('pgn-bar-style')) return;
+ const s = document.createElement('style');
+ s.id = 'pgn-bar-style';
+ s.textContent = `
+ .pgn-bar { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:14px 4px 4px; font-size:0.85rem; color:var(--text-3); }
+ .pgn-info { font-weight:600; }
+ .pgn-ctrls { display:flex; align-items:center; gap:4px; }
+ .pgn-btn { min-width:32px; height:32px; padding:0 10px; border:1px solid var(--border); background:var(--surface); border-radius:8px; cursor:pointer; font-weight:600; font-family:inherit; font-size:0.85rem; color:var(--text-2); transition:background .12s, color .12s, border-color .12s; }
+ .pgn-btn:hover:not(:disabled) { background:rgba(155,93,229,.08); color:var(--violet); border-color:rgba(155,93,229,.3); }
+ .pgn-btn.active { background:var(--violet); color:#fff; border-color:var(--violet); }
+ .pgn-btn:disabled { opacity:.4; cursor:not-allowed; }
+ .pgn-ellip { padding:0 6px; color:var(--text-3); }
+ `;
+ document.head.appendChild(s);
+ }
+
+ function renderPgnControls(elId, page, total, perPage, gotoFn) {
+ const bar = document.getElementById(elId);
+ if (!bar) return;
+ const pages = Math.max(1, Math.ceil(total / perPage));
+ if (pages <= 1) { bar.style.display = 'none'; return; }
+ ensurePgnStyles();
+ const from = (page - 1) * perPage + 1;
+ const to = Math.min(page * perPage, total);
+ const nums = new Set([1, pages, page, page - 1, page + 1, page - 2, page + 2]);
+ const sorted = [...nums].filter(n => n >= 1 && n <= pages).sort((a, b) => a - b);
+ const numHtml = sorted.map((n, i) => {
+ const prev = sorted[i - 1];
+ const gap = prev && n - prev > 1 ? '…' : '';
+ return `${gap}`;
+ }).join('');
+ bar.innerHTML = `
+ ${from}–${to} из ${total}
+
+
+ ${numHtml}
+
+
`;
+ bar.style.display = '';
+ }
+
+ /* ─── Export ─── */
+ window.AdminCtx = window.AdminCtx || {
+ // filled by admin.js after LS.initPage():
+ user: null,
+ isTeacher: false,
+ isAdmin: false,
+ // constants:
+ MODES,
+ DIFFS,
+ DIFF_LABELS,
+ TYPE_LABELS,
+ // formatters:
+ pctClass,
+ fmtDate,
+ fmtTime,
+ fmtDuration,
+ // rendering:
+ renderMath,
+ qTypeBadge,
+ qOptsPreview,
+ // pagination:
+ renderPgnControls,
+ ensurePgnStyles,
+ };
+
+ window.AdminSections = window.AdminSections || {};
+})();
diff --git a/frontend/js/admin/admin.js b/frontend/js/admin/admin.js
index b891c3f..1445d74 100644
--- a/frontend/js/admin/admin.js
+++ b/frontend/js/admin/admin.js
@@ -1,3591 +1,701 @@
'use strict';
-// admin.html — main script (extracted from inline