/* ==============================================================
   WORKSHEET GENERATOR v2 (js/tools/WorksheetManager.js, #wsxModal)
   Light, calm full page in every app theme. Loads after theme-override.css,
   and every rule is scoped to #wsxModal so the board themes cannot reach in.
   ============================================================== */
#wsxModal {
    --x-bg: #f4f6fb;
    --x-card: #ffffff;
    --x-line: #e3e8f0;
    --x-line2: #cfd7e3;
    --x-ink: #1b2537;
    --x-ink2: #4a5568;
    --x-mut: #7a8699;
    --x-acc: #4f46e5;
    --x-acc2: #4338ca;
    --x-accl: #eef0ff;
    --x-accb: #c9cdfb;
    --x-ok: #0f9f6e;
    --x-okl: #e7f8f1;
    --x-warn: #b45309;
    --x-warnl: #fff6e6;
    --x-bad: #dc2626;
    --x-gold: #fbce15;
    --x-r: 14px;
    --x-sh: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
    position: fixed; top: 0; left: 0;
    width: var(--app-vw, 100vw); height: var(--app-vh, 100vh);
    z-index: 200000;
    display: none; flex-direction: column;
    background: var(--x-bg) !important;
    color: var(--x-ink);
    font-family: 'Outfit', 'Cairo', 'Segoe UI', system-ui, sans-serif;
    font-size: 15px; line-height: 1.45;
    opacity: 0; transition: opacity .2s ease;
}
#wsxModal.show { opacity: 1; }
#wsxModal *, #wsxModal *::before, #wsxModal *::after { box-sizing: border-box; }
#wsxModal :is(h1, h2, h3, h4) { color: var(--x-ink) !important; -webkit-text-fill-color: currentColor !important; margin: 0; font-family: "Outfit", "Cairo", "Segoe UI", system-ui, sans-serif !important; letter-spacing: normal; text-transform: none; }
#wsxModal button { font-family: inherit; cursor: pointer; }
#wsxModal [hidden] { display: none !important; }
#wsxModal .small { font-size: .8rem; }
#wsxModal .wsx-muted { color: var(--x-mut); margin: 0; }
#wsxModal em { font-style: normal; font-weight: 400; color: var(--x-mut); font-size: .78rem; margin-inline-start: 6px; }

/* ── Top bar ─────────────────────────────────────────────── */
#wsxModal .wsx-top {
    display: flex; align-items: center; gap: 16px; padding: 10px 18px;
    background: var(--x-card); border-bottom: 1px solid var(--x-line); flex: 0 0 auto;
}
#wsxModal .wsx-brand { display: flex; align-items: center; gap: 11px; min-width: 0; flex: 1 1 0; }
#wsxModal .wsx-brand b { display: block; font-size: 1.05rem; color: var(--x-ink); }
#wsxModal .wsx-brand small { display: block; color: var(--x-mut); font-size: .78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#wsxModal .wsx-logo { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #6366f1, #4338ca); flex: 0 0 auto; box-shadow: 0 4px 12px rgba(79, 70, 229, .3); }
#wsxModal .wsx-nav { display: flex; gap: 4px; background: var(--x-bg); padding: 4px; border-radius: 12px; border: 1px solid var(--x-line); }
#wsxModal .wsx-nav button { border: 0; background: none; color: var(--x-ink2); padding: 8px 14px; border-radius: 9px; font-weight: 600; font-size: .88rem; display: flex; align-items: center; gap: 7px; white-space: nowrap; }
#wsxModal .wsx-nav button:hover:not(:disabled) { color: var(--x-acc); }
#wsxModal .wsx-nav button.active { background: var(--x-card); color: var(--x-acc); box-shadow: 0 1px 3px rgba(16, 24, 40, .12); }
#wsxModal .wsx-nav button:disabled { opacity: .4; cursor: default; }
#wsxModal .wsx-top > .wsx-icon-btn { margin-inline-start: auto; }
#wsxModal .wsx-top::after { content: ''; flex: 1 1 0; order: 1; }
#wsxModal .wsx-top > .wsx-icon-btn { order: 2; }

/* ── Buttons + inputs ────────────────────────────────────── */
#wsxModal .wsx-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    border: 1px solid var(--x-line2); background: var(--x-card); color: var(--x-ink);
    padding: 9px 15px; border-radius: 10px; font-weight: 600; font-size: .88rem; white-space: nowrap;
    transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
}
#wsxModal .wsx-btn:hover:not(:disabled) { border-color: var(--x-acc); color: var(--x-acc); }
#wsxModal .wsx-btn:disabled { opacity: .55; cursor: default; }
#wsxModal .wsx-btn.primary { background: var(--x-acc); border-color: var(--x-acc); color: #fff; box-shadow: 0 2px 8px rgba(79, 70, 229, .25); }
#wsxModal .wsx-btn.primary:hover:not(:disabled) { background: var(--x-acc2); color: #fff; }
#wsxModal .wsx-btn.success { background: var(--x-ok); border-color: var(--x-ok); color: #fff; }
#wsxModal .wsx-btn.success:hover:not(:disabled) { filter: brightness(1.05); color: #fff; }
#wsxModal .wsx-btn.success.saved { background: var(--x-okl); color: var(--x-ok); border-color: #b6e8d3; }
#wsxModal .wsx-btn.lg { padding: 12px 22px; font-size: .98rem; border-radius: 12px; }
#wsxModal .wsx-btn.sm { padding: 6px 11px; font-size: .8rem; }
#wsxModal .wsx-icon-btn {
    width: 36px; height: 36px; flex: 0 0 auto; border-radius: 10px; border: 1px solid var(--x-line2);
    background: var(--x-card); color: var(--x-ink2); display: inline-grid; place-items: center; font-size: .92rem;
}
#wsxModal .wsx-icon-btn:hover:not(:disabled) { color: var(--x-acc); border-color: var(--x-acc); }
#wsxModal .wsx-icon-btn.soft { background: var(--x-bg); border-color: var(--x-line); }
#wsxModal .wsx-icon-btn.ghost { border-color: transparent; background: none; width: 32px; height: 32px; }
#wsxModal .wsx-icon-btn.ghost:hover:not(:disabled) { background: var(--x-accl); border-color: transparent; }
#wsxModal .wsx-icon-btn.danger:hover:not(:disabled) { color: var(--x-bad); background: #fef2f2; border-color: transparent; }
#wsxModal .wsx-icon-btn:disabled { opacity: .3; cursor: default; }
#wsxModal .wsx-link { border: 0; background: none; color: var(--x-acc); font-weight: 600; font-size: .84rem; padding: 4px 0; display: inline-flex; gap: 6px; align-items: center; }
#wsxModal .wsx-link:hover { text-decoration: underline; }
#wsxModal .wsx-input {
    width: 100%; border: 1px solid var(--x-line2); background: #fff !important; color: var(--x-ink) !important;
    border-radius: 10px; padding: 9px 12px; font: inherit; font-size: .92rem; outline: none; min-height: 40px;
    transition: border-color .15s, box-shadow .15s; -webkit-text-fill-color: currentColor;
}
#wsxModal textarea.wsx-input { resize: vertical; min-height: 0; }
#wsxModal select.wsx-input { cursor: pointer; }
#wsxModal .wsx-input.sm { min-height: 34px; padding: 6px 10px; font-size: .84rem; width: auto; }
#wsxModal .wsx-input:focus, #wsxModal .wsx-q-text:focus, #wsxModal .wsx-title-input:focus { border-color: var(--x-acc); box-shadow: 0 0 0 3px rgba(79, 70, 229, .14); }
#wsxModal .wsx-input::placeholder, #wsxModal .wsx-q-text::placeholder, #wsxModal .wsx-title-input::placeholder { color: #a0aabb; -webkit-text-fill-color: #a0aabb; }
#wsxModal .wsx-field { display: flex; flex-direction: column; gap: 6px; margin: 0 0 14px; min-width: 0; flex: 1 1 0; }
#wsxModal .wsx-field > span { font-size: .82rem; font-weight: 600; color: var(--x-ink2); }
#wsxModal .wsx-field.sm { flex: 0 0 150px; }
#wsxModal .wsx-row { display: flex; gap: 12px; align-items: flex-start; }
#wsxModal .wsx-row > .wsx-input { flex: 1 1 auto; }
#wsxModal .wsx-chips { display: flex; gap: 6px; margin-inline-start: 8px; flex-wrap: wrap; }
#wsxModal .wsx-chip { border: 1px solid var(--x-line2); background: #fff; color: var(--x-ink2); border-radius: 999px; padding: 5px 12px; font-weight: 600; font-size: .82rem; }
#wsxModal .wsx-chip.on, #wsxModal .wsx-chip:hover { border-color: var(--x-acc); color: var(--x-acc); background: var(--x-accl); }

/* Segmented control */
#wsxModal .wsx-seg { display: inline-flex; background: var(--x-bg); border: 1px solid var(--x-line); border-radius: 11px; padding: 3px; gap: 2px; }
#wsxModal .wsx-seg button { border: 0; background: none; color: var(--x-ink2); padding: 7px 16px; border-radius: 8px; font-weight: 600; font-size: .86rem; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
#wsxModal .wsx-seg button.on { background: #fff; color: var(--x-acc); box-shadow: 0 1px 3px rgba(16, 24, 40, .14); }
#wsxModal .wsx-seg.sm button { padding: 6px 11px; font-size: .8rem; }

/* Switch */
#wsxModal .wsx-switch { display: flex; align-items: center; gap: 10px; font-size: .88rem; font-weight: 500; color: var(--x-ink); cursor: pointer; margin: 0 0 10px; user-select: none; }
#wsxModal .wsx-switch input { position: absolute; opacity: 0; pointer-events: none; }
#wsxModal .wsx-switch > span { width: 38px; height: 22px; border-radius: 999px; background: #cfd6e2; position: relative; flex: 0 0 auto; transition: background .15s; }
#wsxModal .wsx-switch > span::after { content: ''; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, .2); transition: transform .15s; }
#wsxModal .wsx-switch input:checked + span { background: var(--x-acc); }
#wsxModal .wsx-switch input:checked + span::after { transform: translateX(16px); }
#wsxModal .wsx-switch input:focus-visible + span { box-shadow: 0 0 0 3px rgba(79, 70, 229, .25); }
#wsxModal .wsx-switch.sm { margin: 0; font-size: .82rem; }

/* ── Views ───────────────────────────────────────────────── */
#wsxModal .wsx-view { display: none; flex: 1 1 auto; min-height: 0; overflow-y: auto; position: relative; }
#wsxModal .wsx-view.show { display: block; }
#wsxModal .wsx-view[data-view="editor"].show { display: flex; overflow: hidden; }
#wsxModal .wsx-wrap { max-width: 1180px; margin: 0 auto; padding: 24px 24px 40px; }
#wsxModal .wsx-card { background: var(--x-card); border: 1px solid var(--x-line); border-radius: var(--x-r); padding: 18px 20px 6px; box-shadow: var(--x-sh); margin-bottom: 16px; }
#wsxModal .wsx-card h3 { font-size: 1.02rem; font-weight: 700; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
#wsxModal .wsx-step { width: 26px; height: 26px; border-radius: 50%; background: var(--x-accl); color: var(--x-acc); display: inline-grid; place-items: center; font-size: .82rem; font-weight: 800; }
#wsxModal .wsx-opt { margin-inline-start: 0; }
#wsxModal .wsx-warn { color: var(--x-warn); font-size: .82rem; font-weight: 500; margin-top: 4px; }

/* ── Library ─────────────────────────────────────────────── */
#wsxModal .wsx-lib-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
#wsxModal .wsx-lib-head h2 { font-size: 1.5rem; font-weight: 800; }
#wsxModal .wsx-lib-tools { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
#wsxModal .wsx-lib-tools .wsx-input { width: auto; min-width: 160px; }
#wsxModal .wsx-search { flex: 1 1 280px; position: relative; display: flex; align-items: center; }
#wsxModal .wsx-search i { position: absolute; inset-inline-start: 13px; color: var(--x-mut); font-size: .85rem; }
#wsxModal .wsx-search input { width: 100%; border: 1px solid var(--x-line2); border-radius: 10px; padding: 9px 12px 9px 36px; font: inherit; font-size: .92rem; min-height: 40px; outline: none; background: #fff; color: var(--x-ink); }
#wsxModal[dir=rtl] .wsx-search input { padding: 9px 36px 9px 12px; }
#wsxModal .wsx-search input:focus { border-color: var(--x-acc); box-shadow: 0 0 0 3px rgba(79, 70, 229, .14); }
#wsxModal .wsx-lib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 16px; }
#wsxModal .wsx-lib-card {
    --c: #4f46e5; --cl: #eef0ff;
    background: #fff; border: 1px solid var(--x-line); border-radius: var(--x-r); padding: 16px 16px 12px; box-shadow: var(--x-sh);
    display: flex; flex-direction: column; gap: 8px; cursor: pointer; position: relative; overflow: hidden;
    transition: transform .15s, box-shadow .15s, border-color .15s;
}
#wsxModal .wsx-lib-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--c); }
#wsxModal .wsx-lib-card[data-doc="quiz"] { --c: #0e8a7e; --cl: #e4f6f3; }
#wsxModal .wsx-lib-card[data-doc="homework"] { --c: #d97706; --cl: #fff4e3; }
#wsxModal .wsx-lib-card[data-doc="exam"] { --c: #be185d; --cl: #fdebf3; }
#wsxModal .wsx-lib-card:hover, #wsxModal .wsx-lib-card:focus-visible { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(16, 24, 40, .1); border-color: var(--x-accb); outline: none; }
#wsxModal .wsx-lib-top { display: flex; justify-content: space-between; align-items: center; }
#wsxModal .wsx-doc-pill { background: var(--cl); color: var(--c); border-radius: 999px; padding: 3px 10px; font-size: .74rem; font-weight: 700; display: inline-flex; gap: 6px; align-items: center; }
#wsxModal .wsx-lib-card h4 { font-size: 1.04rem; font-weight: 700; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
#wsxModal .wsx-lib-meta { display: flex; gap: 12px; flex-wrap: wrap; color: var(--x-mut); font-size: .8rem; }
#wsxModal .wsx-lib-meta i { margin-inline-end: 4px; }
#wsxModal .wsx-tags { display: flex; gap: 6px; flex-wrap: wrap; }
#wsxModal .wsx-tag { background: var(--x-bg); color: var(--x-ink2); border-radius: 6px; padding: 2px 7px; font-size: .74rem; font-weight: 600; }
#wsxModal .wsx-lib-actions { display: flex; align-items: center; gap: 2px; margin-top: auto; padding-top: 8px; border-top: 1px solid var(--x-line); }
#wsxModal .wsx-lib-actions .wsx-btn { margin-inline-end: auto; }
#wsxModal .wsx-empty { grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--x-mut); }
#wsxModal .wsx-empty h3 { font-size: 1.3rem; margin: 14px 0 6px; }
#wsxModal .wsx-empty p { max-width: 420px; margin: 0 auto 20px; }
#wsxModal .wsx-empty-ico { width: 76px; height: 76px; margin: 0 auto; border-radius: 22px; background: var(--x-accl); color: var(--x-acc); display: grid; place-items: center; font-size: 2rem; }

/* ── Set up ──────────────────────────────────────────────── */
#wsxModal .wsx-setup { display: grid; grid-template-columns: 1.1fr 1fr; gap: 18px; align-items: start; }
#wsxModal .wsx-doc-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px; }
#wsxModal .wsx-doc-tile { border: 1.5px solid var(--x-line); background: #fff; border-radius: 12px; padding: 12px 8px; display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--x-ink2); text-align: center; transition: all .15s; }
#wsxModal .wsx-doc-tile i { font-size: 1.25rem; color: var(--x-mut); margin-bottom: 2px; }
#wsxModal .wsx-doc-tile b { font-size: .9rem; color: var(--x-ink); }
#wsxModal .wsx-doc-tile small { font-size: .7rem; color: var(--x-mut); line-height: 1.2; }
#wsxModal .wsx-doc-tile:hover { border-color: var(--x-accb); }
#wsxModal .wsx-doc-tile.on { border-color: var(--x-acc); background: var(--x-accl); box-shadow: 0 0 0 3px rgba(79, 70, 229, .1); }
#wsxModal .wsx-doc-tile.on i, #wsxModal .wsx-doc-tile.on b { color: var(--x-acc); }
#wsxModal .wsx-lessons { border: 1px solid var(--x-line); border-radius: 12px; max-height: 260px; overflow-y: auto; padding: 6px; margin: 12px 0 8px; background: #fbfcfe; }
#wsxModal .wsx-chapter { font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; color: var(--x-acc); padding: 8px 8px 4px; }
#wsxModal .wsx-lesson { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 9px; cursor: pointer; font-size: .88rem; }
#wsxModal .wsx-lesson:hover { background: #f1f4f9; }
#wsxModal .wsx-lesson.on { background: var(--x-accl); }
#wsxModal .wsx-lesson input[type=checkbox] { width: 17px; height: 17px; accent-color: var(--x-acc); flex: 0 0 auto; }
#wsxModal .wsx-lesson-name { flex: 1 1 auto; min-width: 0; }
#wsxModal .wsx-range { display: none; align-items: center; gap: 4px; color: var(--x-mut); font-size: .76rem; white-space: nowrap; }
#wsxModal .wsx-lesson.on .wsx-range { display: inline-flex; }
#wsxModal .wsx-range input { width: 46px; border: 1px solid var(--x-line2); border-radius: 6px; padding: 2px 4px; text-align: center; font: inherit; font-size: .78rem; background: #fff; color: var(--x-ink); }
#wsxModal .wsx-count { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
#wsxModal .wsx-count input { width: 64px; text-align: center; border: 1px solid var(--x-line2); border-radius: 10px; min-height: 36px; font: inherit; font-weight: 700; font-size: 1rem; background: #fff; color: var(--x-ink); }
#wsxModal .wsx-type-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
#wsxModal .wsx-type { border: 1.5px solid var(--x-line); background: #fff; color: var(--x-ink2); border-radius: 10px; padding: 9px 8px; font-weight: 600; font-size: .82rem; display: flex; align-items: center; gap: 8px; text-align: start; }
#wsxModal .wsx-type i { color: var(--x-mut); width: 16px; text-align: center; }
#wsxModal .wsx-type:hover { border-color: var(--x-accb); }
#wsxModal .wsx-type.on { border-color: var(--x-acc); background: var(--x-accl); color: var(--x-acc); }
#wsxModal .wsx-type.on i { color: var(--x-acc); }
#wsxModal .wsx-go { position: sticky; bottom: 0; background: linear-gradient(180deg, rgba(244, 246, 251, 0), var(--x-bg) 22%); padding: 16px 0 4px; }
#wsxModal .wsx-go-sum { font-size: .86rem; color: var(--x-ink2); margin-bottom: 10px; }
#wsxModal .wsx-go-btns { display: flex; gap: 10px; justify-content: flex-end; }
#wsxModal .wsx-go-btns .primary { flex: 1 1 auto; }
#wsxModal .wsx-busy { position: absolute; inset: 0; background: rgba(244, 246, 251, .82); backdrop-filter: blur(3px); display: grid; place-items: center; z-index: 5; }
#wsxModal .wsx-busy-card { background: #fff; border: 1px solid var(--x-line); border-radius: 18px; padding: 28px 36px; box-shadow: 0 20px 50px rgba(16, 24, 40, .14); display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
#wsxModal .wsx-busy-card b { font-size: 1.05rem; }
#wsxModal .wsx-busy-card small { color: var(--x-mut); }
#wsxModal .wsx-spinner { width: 42px; height: 42px; border-radius: 50%; border: 4px solid var(--x-accl); border-top-color: var(--x-acc); animation: wsxSpin .8s linear infinite; }
@keyframes wsxSpin { to { transform: rotate(360deg); } }

/* ── Editor ──────────────────────────────────────────────── */
#wsxModal .wsx-editor { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, 46%); width: 100%; height: 100%; min-height: 0; }
#wsxModal .wsx-edit-pane { overflow-y: auto; padding: 18px 22px 60px; min-height: 0; }
#wsxModal .wsx-edit-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
#wsxModal .wsx-title-input { border: 1px solid transparent; background: transparent; border-radius: 10px; font: inherit; font-size: 1.45rem; font-weight: 800; color: var(--x-ink); padding: 4px 8px; margin: 0 -8px; outline: none; width: calc(100% + 16px); }
#wsxModal .wsx-title-input:hover { border-color: var(--x-line2); background: #fff; }
#wsxModal .wsx-edit-stats { display: flex; gap: 8px; flex-wrap: wrap; }
#wsxModal .wsx-edit-stats span { background: #fff; border: 1px solid var(--x-line); border-radius: 999px; padding: 4px 11px; font-size: .78rem; font-weight: 600; color: var(--x-ink2); display: inline-flex; gap: 6px; align-items: center; }
#wsxModal .wsx-edit-stats span.ok { color: var(--x-ok); background: var(--x-okl); border-color: #c4ecdc; }
#wsxModal .wsx-edit-stats span.warn { color: var(--x-warn); background: var(--x-warnl); border-color: #f6dcae; }
#wsxModal .wsx-details { padding: 0; }
#wsxModal .wsx-details > summary { list-style: none; cursor: pointer; padding: 13px 18px; font-weight: 700; font-size: .92rem; display: flex; align-items: center; gap: 9px; }
#wsxModal .wsx-details > summary::-webkit-details-marker { display: none; }
#wsxModal .wsx-details > summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: .7rem; margin-inline-start: auto; color: var(--x-mut); transition: transform .2s; }
#wsxModal .wsx-details[open] > summary::after { transform: rotate(180deg); }
#wsxModal .wsx-details > summary i { color: var(--x-acc); }
#wsxModal .wsx-details[open] { padding-bottom: 6px; }
#wsxModal .wsx-details > :not(summary) { margin-left: 18px; margin-right: 18px; }
#wsxModal .wsx-details > p { margin-bottom: 12px; }

/* Question card */
#wsxModal .wsx-qs { display: flex; flex-direction: column; gap: 12px; }
#wsxModal .wsx-q { background: #fff; border: 1px solid var(--x-line); border-radius: var(--x-r); padding: 12px 16px 14px; box-shadow: var(--x-sh); transition: border-color .15s, box-shadow .15s, opacity .2s; position: relative; }
#wsxModal .wsx-q:focus-within { border-color: var(--x-accb); box-shadow: 0 0 0 3px rgba(79, 70, 229, .08), var(--x-sh); }
#wsxModal .wsx-q.missing { border-inline-start: 3px solid #f2b04c; }
#wsxModal .wsx-q.busy { opacity: .45; pointer-events: none; }
#wsxModal .wsx-q.busy::after { content: 'Rewriting…'; position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; color: var(--x-acc); }
#wsxModal .wsx-q-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
#wsxModal .wsx-q-num { min-width: 30px; height: 30px; border-radius: 9px; background: var(--x-acc); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: .9rem; padding: 0 6px; }
#wsxModal .wsx-q-type { max-width: 170px; }
#wsxModal .wsx-marks { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--x-line2); border-radius: 9px; padding: 0 8px 0 2px; height: 34px; background: #fff; font-size: .78rem; color: var(--x-mut); }
#wsxModal .wsx-marks input { width: 34px; border: 0; outline: none; text-align: center; font: inherit; font-weight: 700; font-size: .88rem; color: var(--x-ink); background: transparent; -moz-appearance: textfield; }
#wsxModal .wsx-marks input::-webkit-inner-spin-button { -webkit-appearance: none; }
#wsxModal .wsx-flag { color: var(--x-warn); background: var(--x-warnl); border-radius: 999px; padding: 3px 9px; font-size: .74rem; font-weight: 700; display: inline-flex; gap: 5px; align-items: center; }
#wsxModal .wsx-q-tools { display: flex; align-items: center; gap: 0; margin-inline-start: auto; }
#wsxModal .wsx-sep { width: 1px; height: 20px; background: var(--x-line); margin: 0 4px; }
#wsxModal .wsx-q-text { width: 100%; border: 1px solid var(--x-line); border-radius: 10px; padding: 10px 12px; font: inherit; font-size: 1rem; line-height: 1.5; color: var(--x-ink); background: #fbfcfe; resize: none; outline: none; min-height: 48px; overflow: hidden; }
#wsxModal .wsx-q-img { position: relative; display: inline-block; margin: 10px 0 0; }
#wsxModal .wsx-q-img img { max-height: 150px; max-width: 100%; border-radius: 10px; border: 1px solid var(--x-line); display: block; background: #fff; }
#wsxModal .wsx-q-img .wsx-icon-btn { position: absolute; top: 6px; inset-inline-end: 6px; width: 30px; height: 30px; background: rgba(255, 255, 255, .95); }
#wsxModal .wsx-opts { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
#wsxModal .wsx-opt { display: flex; align-items: center; gap: 8px; border-radius: 10px; }
#wsxModal .wsx-opt .wsx-input { min-height: 36px; padding: 7px 10px; }
#wsxModal .wsx-opt-l { font-weight: 800; color: var(--x-mut); width: 16px; text-align: center; font-size: .86rem; }
#wsxModal .wsx-radio { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--x-line2); background: #fff; color: transparent; display: grid; place-items: center; font-size: .72rem; flex: 0 0 auto; transition: all .15s; }
#wsxModal .wsx-radio:hover { border-color: var(--x-ok); color: #9fdcc4; }
#wsxModal .wsx-opt.correct .wsx-radio { background: var(--x-ok); border-color: var(--x-ok); color: #fff; }
#wsxModal .wsx-opt.correct .wsx-input { border-color: #9fdcc4; background: var(--x-okl) !important; }
#wsxModal .wsx-opt.correct .wsx-opt-l { color: var(--x-ok); }
#wsxModal .wsx-tip { color: var(--x-mut); font-size: .75rem; }
#wsxModal .wsx-tf { display: flex; align-items: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
#wsxModal .wsx-tf-btn { border: 1.5px solid var(--x-line2); background: #fff; color: var(--x-ink2); border-radius: 10px; padding: 8px 18px; font-weight: 700; font-size: .88rem; display: inline-flex; gap: 7px; align-items: center; }
#wsxModal .wsx-tf-btn.on { border-color: var(--x-ok); background: var(--x-okl); color: var(--x-ok); }
#wsxModal .wsx-pairs { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
#wsxModal .wsx-pairs-head, #wsxModal .wsx-pair { display: grid; grid-template-columns: 1fr 20px 1fr 32px; gap: 8px; align-items: center; }
#wsxModal .wsx-pairs-head { font-size: .74rem; font-weight: 700; color: var(--x-mut); text-transform: uppercase; letter-spacing: .03em; }
#wsxModal .wsx-pair i { color: var(--x-mut); font-size: .8rem; text-align: center; }
#wsxModal .wsx-pair .wsx-input { min-height: 36px; padding: 7px 10px; }
#wsxModal .wsx-ans-row { display: flex; gap: 14px; align-items: flex-end; margin-top: 10px; }
#wsxModal .wsx-ans-row .wsx-field { margin: 0; }
#wsxModal .wsx-ans-row .wsx-field:not(.grow) { flex: 0 0 auto; }
#wsxModal .wsx-mini-step { display: flex; align-items: center; gap: 6px; height: 40px; }
#wsxModal .wsx-mini-step .wsx-icon-btn { width: 32px; height: 32px; }
#wsxModal .wsx-mini-step b { min-width: 20px; text-align: center; }
#wsxModal .wsx-hint { margin: 10px 0 0; }
#wsxModal .wsx-hint > span i { color: #d4a00a; }
#wsxModal .wsx-add-row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
#wsxModal .wsx-add-menu { position: relative; }
#wsxModal .wsx-menu { position: absolute; bottom: calc(100% + 6px); inset-inline-start: 0; background: #fff; border: 1px solid var(--x-line); border-radius: 12px; box-shadow: 0 14px 34px rgba(16, 24, 40, .16); padding: 6px; min-width: 210px; z-index: 3; display: flex; flex-direction: column; }
#wsxModal .wsx-menu button { border: 0; background: none; text-align: start; padding: 9px 12px; border-radius: 8px; font-size: .88rem; color: var(--x-ink); display: flex; gap: 10px; align-items: center; }
#wsxModal .wsx-menu button i { width: 16px; color: var(--x-mut); }
#wsxModal .wsx-menu button:hover { background: var(--x-accl); color: var(--x-acc); }
#wsxModal .wsx-mobile-switch, #wsxModal .wsx-mobile-only { display: none; }

/* Preview pane */
#wsxModal .wsx-preview-pane { display: flex; flex-direction: column; min-height: 0; background: #e6eaf2; border-inline-start: 1px solid var(--x-line); }
#wsxModal .wsx-pv-head { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: #fff; border-bottom: 1px solid var(--x-line); flex-wrap: wrap; }
#wsxModal .wsx-pv-head > b { font-size: .9rem; display: flex; gap: 7px; align-items: center; margin-inline-end: auto; }
#wsxModal .wsx-pv-head > b i { color: var(--x-acc); }
#wsxModal .wsx-swatches { display: flex; gap: 5px; flex-wrap: wrap; }
#wsxModal .wsx-swatch { width: 22px; height: 22px; border-radius: 50%; border: 2px solid #fff; padding: 0; background: linear-gradient(135deg, var(--sw) 0 62%, var(--sw2) 62%); box-shadow: 0 0 0 1px var(--x-line2); transition: transform .12s; }
#wsxModal .wsx-swatch:hover { transform: scale(1.12); }
#wsxModal .wsx-swatch.on { box-shadow: 0 0 0 2px var(--x-acc); transform: scale(1.12); }
#wsxModal .wsx-pv-scroll { flex: 1 1 auto; overflow: auto; padding: 16px; min-height: 0; }
#wsxModal .wsx-pv-paper { width: 794px; margin: 0 auto; background: #fff; box-shadow: 0 4px 24px rgba(16, 24, 40, .14); border-radius: 4px; min-height: 400px; }
#wsxModal .wsx-pv-paper .wsd.wsd-screen { border-radius: 4px; }
#wsxModal .wsx-pv-paper :is(h1, h2, h3) { color: var(--g, #1b2537) !important; -webkit-text-fill-color: currentColor !important; }
#wsxModal .wsx-pv-paper .wsd-s-banner h1 { color: #fff !important; }
#wsxModal .wsx-pv-loading { padding: 120px 20px; display: flex; flex-direction: column; align-items: center; gap: 14px; color: var(--x-mut); font-size: 1.2rem; }
#wsxModal .wsx-pv-foot { background: #fff; border-top: 1px solid var(--x-line); padding: 10px 16px; display: flex; flex-direction: column; gap: 10px; }
#wsxModal .wsx-print-opts { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
#wsxModal .wsx-export { display: flex; gap: 8px; flex-wrap: wrap; }
#wsxModal .wsx-export .wsx-btn { flex: 1 1 auto; }

/* ── Narrow screens ──────────────────────────────────────── */
@media (max-width: 1100px) {
    #wsxModal .wsx-brand small { display: none; }
}
@media (max-width: 980px) {
    #wsxModal .wsx-setup { grid-template-columns: 1fr; }
    #wsxModal .wsx-editor { grid-template-columns: 1fr; }
    #wsxModal .wsx-preview-pane { display: none; }
    #wsxModal.wsx-mobile-pv .wsx-preview-pane { display: flex; position: absolute; inset: 0; z-index: 4; }
    #wsxModal .wsx-mobile-switch { display: block; }
    #wsxModal .wsx-mobile-switch button { border: 1px solid var(--x-accb); background: var(--x-accl); color: var(--x-acc); border-radius: 10px; padding: 8px 14px; font-weight: 700; }
    #wsxModal .wsx-mobile-only { display: inline-grid; }
}
@media (max-width: 720px) {
    #wsxModal .wsx-top { padding: 8px 10px; gap: 8px; }
    #wsxModal .wsx-brand div { display: none; }
    #wsxModal .wsx-nav button span { display: none; }
    #wsxModal .wsx-nav button { padding: 8px 12px; }
    #wsxModal .wsx-wrap { padding: 16px 14px 32px; }
    #wsxModal .wsx-doc-tiles { grid-template-columns: repeat(2, 1fr); }
    #wsxModal .wsx-type-grid { grid-template-columns: repeat(2, 1fr); }
    #wsxModal .wsx-row { flex-wrap: wrap; }
    #wsxModal .wsx-field.sm { flex: 1 1 120px; }
    #wsxModal .wsx-edit-pane { padding: 14px 12px 50px; }
    #wsxModal .wsx-q-tools { width: 100%; justify-content: space-between; margin: 0; }
    #wsxModal .wsx-ans-row { flex-wrap: wrap; }
    #wsxModal .wsx-go-btns { flex-direction: column-reverse; }
    #wsxModal .wsx-lib-head { flex-wrap: wrap; }
}

/* App-wide button rules (min sizes, padding) must not stretch these round / square controls */
#wsxModal :is(.wsx-radio, .wsx-icon-btn, .wsx-swatch) { padding: 0 !important; min-width: 0 !important; min-height: 0 !important; line-height: 1; }
#wsxModal .wsx-radio { width: 28px !important; height: 28px !important; }
#wsxModal .wsx-swatch { width: 22px !important; height: 22px !important; }

/* Rendered maths (KaTeX) under a field, so teachers see the real formula while typing */
#wsxModal .wsx-cell { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
#wsxModal .wsx-mpv { color: var(--x-ink); font-size: 1.02rem; line-height: 1.6; padding: 6px 12px; background: #f7f8fc; border: 1px dashed var(--x-line2); border-radius: 9px; margin-top: 6px; overflow-x: auto; overflow-y: hidden; }
#wsxModal .wsx-mpv.sm { font-size: .92rem; padding: 3px 10px; margin-top: 0; }
#wsxModal .wsx-mpv::before { content: 'Maths preview'; display: block; font-size: .64rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--x-mut); margin-bottom: 1px; }
#wsxModal .wsx-mpv.sm::before { display: none; }
#wsxModal .wsx-mpv .katex { font-size: 1.08em; }
#wsxModal .wsx-opt { align-items: flex-start; }
#wsxModal .wsx-opt > .wsx-radio, #wsxModal .wsx-opt > .wsx-opt-l, #wsxModal .wsx-opt > .wsx-icon-btn { margin-top: 4px; }
#wsxModal .wsx-opt-l { line-height: 28px; }
#wsxModal .wsx-pair { align-items: start; }
#wsxModal .wsx-pair > i { margin-top: 12px; }

/* Picture on a question card + its page-size control */
#wsxModal .wsx-q-img-row { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-top: 10px; }
#wsxModal .wsx-q-img-row .wsx-q-img { margin: 0; }
#wsxModal .wsx-q-img-row .wsx-field { flex: 0 0 auto; margin: 0; }