:root{--color-bg: #f4f6f9;--color-surface: #ffffff;--color-border: #e2e6ec;--color-text: #1b2430;--color-text-muted: #6b7685;--color-primary: #2f6fed;--color-primary-dark: #1f52c0;--color-danger: #d64545;--radius: 10px;--shadow: 0 1px 3px rgba(20, 30, 50, .08);font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}button{font-family:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:230px;flex-shrink:0;background:var(--color-surface);border-right:1px solid var(--color-border);padding:20px 16px;display:flex;flex-direction:column;gap:24px}.sidebar__brand{font-weight:700;font-size:1.05rem;color:var(--color-primary-dark)}.sidebar__nav{display:flex;flex-direction:column;gap:4px}.sidebar__link{padding:10px 12px;border-radius:var(--radius);color:var(--color-text-muted);text-decoration:none;font-size:.95rem}.sidebar__link:hover{background:var(--color-bg)}.sidebar__link--active{background:#2f6fed1a;color:var(--color-primary-dark);font-weight:600}.sidebar__role-tag{margin-top:auto;font-size:.85rem;color:var(--color-text-muted)}.sidebar__account{display:none;flex-direction:column;gap:8px;margin-top:auto;padding-top:16px;border-top:1px solid var(--color-border)}.sidebar__account-name{font-weight:600;font-size:.95rem}.sidebar__logout{align-self:flex-start}.sidebar__backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;z-index:90}.app-shell__main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.topbar__user{display:flex;align-items:center;gap:14px}.topbar__name{font-weight:600;font-size:.95rem}.topbar__mobile-brand{display:none;align-items:center;gap:10px}.topbar__menu-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius);border:1px solid var(--color-border);background:var(--color-surface);cursor:pointer;flex-shrink:0}.topbar__menu-icon{font-size:1.2rem;line-height:1}.topbar__brand-name{font-weight:700;color:var(--color-primary-dark);font-size:1rem;white-space:nowrap}.app-shell__content{padding:24px;flex:1}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px}.card__title{margin:0 0 12px;font-size:1rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.03em}.card__section-title{font-weight:600;margin:12px 0 4px}.card__section-title:first-child{margin-top:0}.stat-number{font-size:2.2rem;font-weight:700;color:var(--color-primary-dark);margin:0}.list{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:6px}.state-box{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:40px 20px;color:var(--color-text-muted);text-align:center}.state-box--error{color:var(--color-danger)}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--color-border);border-top-color:var(--color-primary);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2f9,#dfe7f5);padding:16px}.login-card{width:100%;max-width:360px;background:var(--color-surface);border-radius:var(--radius);box-shadow:0 8px 24px #141e321f;padding:32px 28px;display:flex;flex-direction:column;gap:16px}.login-card__title{margin:0;font-size:1.3rem;color:var(--color-primary-dark)}.login-card__subtitle{margin:-8px 0 0;color:var(--color-text-muted);font-size:.9rem}.login-card__error{color:var(--color-danger);font-size:.9rem}.field{display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:var(--color-text-muted)}.field input{padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;color:var(--color-text)}.field input:focus,.field select:focus{outline:2px solid var(--color-primary);outline-offset:1px}.field select{padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;color:var(--color-text);background:var(--color-surface)}.field textarea{padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;color:var(--color-text);font-family:inherit;resize:vertical}.field textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px}.field-row{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:16px}.feature-table{width:100%;border-collapse:collapse;font-size:.92rem}.feature-table th,.feature-table td{padding:10px 12px;border-bottom:1px solid var(--color-border);text-align:left}.feature-table__key{font-size:.78rem;color:var(--color-text-muted)}.toggle-btn{padding:6px 14px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:.82rem;cursor:pointer}.toggle-btn:disabled{opacity:.6;cursor:default}.toggle-btn--on{background:#2f9e4424;color:#1f7a34}.toggle-btn--off{background:#d645451a;color:var(--color-danger)}.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;margin:12px 0}.checkbox-item{display:flex;align-items:center;gap:6px;font-size:.9rem}.btn{padding:10px 16px;border-radius:var(--radius);border:1px solid transparent;font-size:.95rem;cursor:pointer}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-dark)}.btn--primary:disabled{opacity:.6;cursor:default}.btn--ghost{background:transparent;border-color:var(--color-border);color:var(--color-text-muted)}.btn--ghost:hover:not(:disabled){background:var(--color-bg)}.btn--ghost:disabled{opacity:.45;cursor:default}@media (max-width: 768px){.topbar__mobile-brand{display:flex}.topbar__user{display:none}.app-shell__content{padding:16px}.sidebar{position:fixed;top:0;left:0;height:100vh;width:min(280px,85vw);max-width:85vw;z-index:100;overflow-y:auto;box-shadow:2px 0 16px #0f172a2e;transform:translate(-100%);transition:transform .2s ease}.sidebar--open{transform:translate(0)}.sidebar__account{display:flex}}.wt-page{display:flex;flex-direction:column;gap:16px}.wt-h2{margin:4px 0;font-size:1.2rem}.wt-muted{color:var(--color-text-muted);font-size:.88rem;margin:4px 0}.wt-note{background:#2f6fed14;border-radius:var(--radius);padding:10px 14px;margin:0}.wt-bad{color:var(--color-danger);margin:2px 0;font-size:.88rem}.wt-errors{background:#d6454514;border-radius:var(--radius);padding:8px 14px;color:var(--color-danger)}.wt-errors p{margin:4px 0}.wt-grow{flex:1 1 220px;min-width:0}.wt-full{width:100%}.wt-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:space-between}.wt-link{background:none;border:none;color:var(--color-primary);cursor:pointer;padding:0;font-size:.92rem;text-decoration:none}.wt-link:disabled{opacity:.5;cursor:default}.wt-link--danger{color:var(--color-danger)}.wt-actions{display:flex;flex-wrap:wrap;gap:10px}.wt-table-wrap{overflow-x:auto;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius)}.wt-banner{border-radius:var(--radius);padding:12px 16px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}.wt-banner--offline{background:#fff4e0;color:#8a5300;border:1px solid #f1cf8f}.wt-banner--pending{background:#fdecec;color:#8b2323;border:1px solid #f0bcbc}.wt-chip{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:600;background:var(--color-bg);color:var(--color-text-muted)}.wt-chip--in_progress,.wt-chip--active{background:#2f6fed1f;color:var(--color-primary-dark)}.wt-chip--not_started{background:#2f9e4424;color:#1f7a34}.wt-chip--completed,.wt-chip--finished{background:#eef0f3;color:#4a5361}.wt-chip--expired{background:#d645451a;color:var(--color-danger)}.wt-chip--upcoming,.wt-chip--draft{background:#fff4e0;color:#8a5300}.wt-badge{display:inline-block;margin:2px 4px 2px 0;padding:2px 8px;border-radius:6px;font-size:.8rem;background:var(--color-bg)}.wt-badge--offline{background:#fff4e0;color:#8a5300}.wt-badge--online{background:#2f9e441f;color:#1f7a34}.wt-badge--warn{background:#d645451a;color:var(--color-danger)}.wt-tabs{display:flex;gap:6px;flex-wrap:wrap}.wt-tab{border:1px solid var(--color-border);background:var(--color-surface);border-radius:999px;padding:7px 14px;cursor:pointer;font-size:.9rem}.wt-tab--active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.wt-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px}.wt-card{display:flex;flex-direction:column;gap:8px}.wt-card__top{display:flex;gap:6px;flex-wrap:wrap}.wt-card__title{margin:0;font-size:1.05rem}.wt-card__actions{display:flex;gap:8px;margin-top:auto;flex-wrap:wrap}.wt-meta{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:0;font-size:.88rem}.wt-meta dt{color:var(--color-text-muted)}.wt-meta dd{margin:0}.wt-player{display:flex;flex-direction:column;gap:14px;max-width:1100px}.wt-player__head{display:grid;grid-template-columns:1fr auto;gap:6px 16px;align-items:center;position:sticky;top:0;z-index:5}.wt-player__title{margin:0;font-size:1.1rem}.wt-player__count{grid-column:1 / -1;margin:0}.wt-timer{font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--color-primary-dark)}.wt-timer--low{color:var(--color-danger)}.wt-progress{grid-column:1 / -1;height:6px;background:var(--color-bg);border-radius:999px;overflow:hidden}.wt-progress__bar{height:100%;background:var(--color-primary);transition:width .2s}.wt-player__body{display:grid;grid-template-columns:1fr 240px;gap:14px;align-items:start}.wt-player__foot{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.wt-q__num{color:var(--color-text-muted);font-size:.85rem;margin:0 0 6px}.wt-q__text{font-size:1.08rem;line-height:1.5;margin:0 0 12px;white-space:pre-wrap}.wt-options{display:flex;flex-direction:column;gap:10px;margin-top:10px}.wt-option{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;padding:12px 14px;border:2px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);cursor:pointer;font-size:1rem;color:var(--color-text)}.wt-option:hover:not(:disabled){border-color:var(--color-primary)}.wt-option--selected{border-color:var(--color-primary);background:#2f6fed14}.wt-option__text{display:flex;flex-direction:column;gap:8px;white-space:pre-wrap}.wt-letter{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;border-radius:50%;background:var(--color-bg);font-weight:700;flex-shrink:0}.wt-option--selected .wt-letter{background:var(--color-primary);color:#fff}.wt-img{display:block;max-width:100%;max-height:420px;object-fit:contain;border-radius:8px;border:1px solid var(--color-border);background:#fff;margin:6px 0}.wt-img--opt{max-height:200px}.wt-img--thumb{max-height:120px}.wt-img--thumb-sm{max-height:48px;max-width:48px;margin:0}.wt-img--full{max-height:80vh;margin:0}.wt-img-missing,.wt-img-loading{padding:18px;border:1px dashed var(--color-border);border-radius:8px;color:var(--color-text-muted);font-size:.88rem;text-align:center}.wt-nav__title{font-weight:600;margin:0 0 10px}.wt-nav__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:6px}.wt-nav__cell{height:40px;border-radius:8px;border:1px solid var(--color-border);background:var(--color-surface);cursor:pointer;font-weight:600}.wt-nav__cell--answered{background:#2f9e4429;border-color:#7cc48c;color:#1f7a34}.wt-nav__cell--current{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.wt-nav__legend{display:flex;flex-direction:column;gap:4px;margin-top:12px;font-size:.8rem;color:var(--color-text-muted)}.wt-dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;border:1px solid var(--color-border)}.wt-dot--current{background:var(--color-primary)}.wt-dot--answered{background:#2f9e4466}.wt-dot--unanswered{background:var(--color-surface)}.wt-modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#141e3273;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.wt-modal__box{max-width:420px;width:100%}.wt-modal__box--wide{max-width:900px;max-height:90vh;overflow-y:auto}.wt-modal__box--image{max-width:min(90vw,720px);width:auto;text-align:center}.wt-modal__actions{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}.wt-modal__close{float:right}.wt-result{display:flex;flex-direction:column;gap:12px}.wt-result__title{margin:0 0 4px}.wt-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin:12px 0}.wt-stat{background:var(--color-bg);border-radius:var(--radius);padding:10px 12px;display:flex;flex-direction:column;gap:2px}.wt-stat span{font-size:1.3rem;font-weight:700}.wt-stat small{color:var(--color-text-muted)}.wt-stat--main span{color:var(--color-primary-dark);font-size:1.7rem}.wt-stat--ok span{color:#1f7a34}.wt-stat--bad span{color:var(--color-danger)}.wt-rq__head{display:flex;justify-content:space-between;gap:10px}.wt-rq--correct{border-left:4px solid #2f9e44}.wt-rq--wrong{border-left:4px solid var(--color-danger)}.wt-rq--unanswered{border-left:4px solid #aab2bf}.wt-rq__text{white-space:pre-wrap}.wt-rq__options{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:6px}.wt-rq__opt{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:8px 10px;border-radius:8px;border:1px solid var(--color-border)}.wt-rq__opt--mine{border-color:var(--color-primary)}.wt-rq__opt--right{background:#2f9e441a;border-color:#7cc48c}.wt-tag{font-size:.78rem;color:var(--color-primary-dark);font-style:normal}.wt-tag--ok,.wt-state--correct{color:#1f7a34}.wt-state--wrong{color:var(--color-danger)}.wt-state--unanswered{color:var(--color-text-muted)}.wt-explain{background:#fffbea;border-radius:8px;padding:8px 12px;margin:10px 0 0}.wt-builder{display:grid;grid-template-columns:230px 1fr 300px;gap:14px;align-items:start}.wt-qlist{list-style:none;padding:0;margin:0 0 10px;display:flex;flex-direction:column;gap:4px;max-height:60vh;overflow-y:auto}.wt-qlist__item{width:100%;text-align:left;border:1px solid transparent;background:none;padding:7px 8px;border-radius:8px;cursor:pointer;font-size:.88rem}.wt-qlist__item--active{background:#2f6fed1a;border-color:var(--color-primary)}.wt-qlist__item--bad{color:var(--color-danger)}.wt-qlist__img-badge{margin-left:6px}.wt-fieldset{border:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.wt-optedit{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.wt-optedit input:not([type=radio]){padding:8px 10px;border:1px solid var(--color-border);border-radius:8px;font-size:.95rem}.wt-details summary{cursor:pointer;margin:8px 0}.wt-upload{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}.wt-upload--compact{gap:8px;align-items:center}.wt-upload__thumb{position:relative;flex-shrink:0}.wt-upload__thumb-btn{display:block;padding:0;border:none;background:none;cursor:pointer;border-radius:8px}.wt-upload__thumb-btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.wt-upload__overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#ffffffb3;border-radius:8px}.wt-upload__body{display:flex;flex-direction:column;gap:6px;min-width:0}.wt-upload--compact .wt-upload__body{flex-direction:row;align-items:center;gap:8px;flex-wrap:wrap}.wt-upload__status{font-size:.85rem;display:inline-flex;align-items:center;gap:6px}.wt-upload__status--ok{color:#1f7a34}.wt-upload__status--error{color:var(--color-danger)}.wt-upload__status--busy{color:var(--color-text-muted)}.wt-upload__actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spinner--sm{width:16px;height:16px;border-width:2px}.wt-search{padding:8px 10px;border:1px solid var(--color-border);border-radius:8px;margin-bottom:6px;width:100%;max-width:320px}.wt-bulk{width:100%;font-family:ui-monospace,Consolas,monospace;font-size:.9rem;padding:10px;border:1px solid var(--color-border);border-radius:var(--radius);margin:8px 0}.wt-bulk-preview{margin-top:12px}.wt-bulk-list{display:flex;flex-direction:column;gap:8px;padding-left:22px}.wt-bulk-ok{padding:6px 10px;border-left:3px solid #2f9e44;background:#2f9e440d}.wt-bulk-bad{padding:6px 10px;border-left:3px solid var(--color-danger);background:#d6454512}.wt-bulk-list ul{margin:4px 0;padding-left:18px;font-size:.9rem}.wt-qstats{display:flex;flex-direction:column;gap:6px}.wt-qstat{display:grid;grid-template-columns:32px 1fr 170px;gap:10px;align-items:center;font-size:.85rem}.wt-qstat__num{font-weight:700;text-align:right}.wt-qstat__bar{display:flex;height:12px;border-radius:999px;overflow:hidden;background:var(--color-bg)}.wt-qstat__ok{background:#2f9e44}.wt-qstat__bad{background:var(--color-danger)}.wt-qstat__empty{background:#c3c9d3}.wt-qstat__pct{color:var(--color-text-muted)}@media (max-width: 1000px){.wt-builder{grid-template-columns:1fr}.wt-qlist{max-height:220px}}@media (max-width: 760px){.wt-player__body{grid-template-columns:1fr}.wt-nav{order:-1}.wt-nav__grid{grid-template-columns:repeat(auto-fill,minmax(36px,1fr))}.wt-nav__legend{flex-direction:row;flex-wrap:wrap;gap:10px}.wt-player__foot{position:sticky;bottom:0;background:var(--color-bg);padding:8px 0;justify-content:space-between}.wt-player__foot .btn{flex:1 1 30%}.wt-timer{font-size:1.25rem}.wt-qstat{grid-template-columns:28px 1fr}.wt-qstat__pct{grid-column:2}}.wt-link--warn{color:#8a5300}.wt-chip--archived{background:#eef0f3;color:#4a5361}.wt-badge--src-telegram{background:#2aabee24;color:#1b6f9c}.wt-badge--src-web{background:#2f9e441f;color:#1f7a34}.wt-src-note{color:#8a5300;font-size:.82rem}.wt-admin-filters{flex-wrap:wrap}.wt-admin-filters .field{min-width:140px}.wt-pager{display:flex;gap:12px;align-items:center;justify-content:center;margin:12px 0}.wt-preview{padding-left:20px;display:flex;flex-direction:column;gap:14px}.wt-preview__opts{list-style:none;padding-left:6px;margin:6px 0}.wt-preview__img{max-width:320px;max-height:220px;display:block;margin:6px 0;border-radius:6px}.wt-preview__img--opt{max-width:160px;max-height:120px}@media (max-width: 768px){.wt-admin-filters .field{min-width:0;flex:1 1 45%}.wt-preview__img{max-width:100%}}.ai-settings .field select,.ai-settings .field input{width:100%;max-width:100%;min-width:0;box-sizing:border-box}