.ldq-shell,.ldq-shell *{box-sizing:border-box}body:has(.ldq-shell){background:var(--app-page-bg,var(--surface,#fff));min-height:100vh}.ldq-shell{--ldq-line:color-mix(in srgb, var(--text,#162544) 13%, transparent);--ldq-line-soft:color-mix(in srgb, var(--text,#162544) 8%, transparent);width:min(1320px,100% - 48px);min-height:100vh;padding:34px 0 calc(128px + env(safe-area-inset-bottom));color:var(--text,#162544);margin:0 auto}.ldq-sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.ldq-head{justify-content:space-between;align-items:flex-start;gap:28px;display:flex}.ldq-head>div{min-width:0}.ldq-head p{color:var(--muted,#526d96);letter-spacing:0;text-transform:uppercase;margin:0 0 5px;font-size:11px;font-weight:800}.ldq-head h1{letter-spacing:0;margin:0;font-size:34px;line-height:1.1}.ldq-head>div>span{max-width:720px;color:var(--muted,#526d96);margin-top:9px;font-size:14px;line-height:1.5;display:block}.ldq-back,.ldq-lesson-actions a{color:var(--primary,#1f6fc6);justify-content:center;align-items:center;gap:7px;font-weight:800;text-decoration:none;display:inline-flex}.ldq-back{border:1px solid var(--ldq-line);background:var(--surface,#fff);border-radius:6px;flex:none;min-height:40px;padding:0 12px;font-size:13px}.ldq-back:hover,.ldq-lesson-actions a:hover{color:var(--button-primary-hover,#1479d4)}.ldq-back:focus-visible,.ldq-lesson-actions a:focus-visible,.ldq-more button:focus-visible,.ldq-reset:focus-visible,.ldq-empty button:focus-visible{outline:3px solid var(--button-focus-ring,#2f9ae647);outline-offset:2px}.ldq-stats{border-top:1px solid var(--ldq-line);grid-template-columns:repeat(6,minmax(0,1fr));margin:30px 0 0;display:grid}.ldq-stats div{border-right:1px solid var(--ldq-line-soft);border-bottom:1px solid var(--ldq-line);min-height:96px;padding:18px 16px}.ldq-stats div:last-child{border-right:0}.ldq-stats b{font-variant-numeric:tabular-nums;font-size:28px;line-height:1.05;display:block}.ldq-stats span{color:var(--muted,#526d96);margin-top:5px;font-size:12px;line-height:1.35;display:block}.ldq-truth{color:var(--muted,#526d96);margin:14px 0 42px;font-size:13px;line-height:1.5}.ldq-section-title{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:15px;display:flex}.ldq-section-title>div{min-width:0}.ldq-section-title h2{letter-spacing:0;margin:0;font-size:21px;line-height:1.25}.ldq-section-title span{color:var(--muted,#526d96);font-size:13px;line-height:1.45}.ldq-section-title>div>span{margin-top:4px;display:block}.ldq-section-title>span{font-variant-numeric:tabular-nums;flex:none;font-weight:700}.ldq-filters{border-top:1px solid var(--ldq-line);border-bottom:1px solid var(--ldq-line);grid-template-columns:minmax(290px,1.25fr) minmax(270px,.9fr) minmax(260px,1fr) auto;align-items:end;gap:14px;padding:16px 0;display:grid}.ldq-control{gap:7px;min-width:0;display:grid}.ldq-control-label{color:var(--muted-soft,#7890b2);letter-spacing:0;text-transform:uppercase;font-size:10px;font-weight:800;line-height:1;display:block}.ldq-search-field{min-width:0;display:block;position:relative}.ldq-search-field>svg{color:var(--muted-soft,#7890b2);pointer-events:none;position:absolute;top:50%;left:13px;transform:translateY(-50%)}.ldq-search-field input,.ldq-control select{border:1px solid var(--card-border,#d9e4f2);width:100%;height:42px;color:var(--text,#162544);background:var(--surface,#fff);font:inherit;border-radius:6px;outline:none;font-size:13px}.ldq-search-field input{min-width:0;padding:0 12px 0 39px}.ldq-search-field input::placeholder{color:var(--muted-soft,#7890b2);opacity:1}.ldq-control select{text-overflow:ellipsis;padding:0 34px 0 11px}.ldq-search-field input:focus,.ldq-control select:focus{border-color:var(--primary,#2f9ae6);box-shadow:0 0 0 3px var(--button-focus-ring,#2f9ae633)}.ldq-subject-control{border:0;min-width:0;margin:0;padding:0}.ldq-subject-control legend{margin-bottom:7px}.ldq-subject-options{border:1px solid var(--card-border,#d9e4f2);border-radius:6px;grid-template-columns:repeat(3,minmax(0,1fr));height:42px;display:grid;overflow:hidden}.ldq-subject-options button{border:0;border-right:1px solid var(--card-border,#d9e4f2);min-width:0;color:var(--muted,#526d96);background:var(--surface,#fff);font:inherit;cursor:pointer;border-radius:0;justify-content:center;align-items:center;gap:6px;font-size:12px;font-weight:800;display:inline-flex}.ldq-subject-options button:last-child{border-right:0}.ldq-subject-options button:hover{background:var(--button-ghost-hover-bg,#2f9ae614)}.ldq-subject-options button.is-active{color:var(--text,#162544);background:var(--qb-accent-soft,#2f9ae61f);box-shadow:inset 0 -2px 0 var(--primary,#2f9ae6)}.ldq-subject-options button:focus-visible{z-index:1;outline:3px solid var(--button-focus-ring,#2f9ae647);outline-offset:-3px;position:relative}.ldq-subject-options small{min-width:22px;color:var(--muted-soft,#7890b2);font-variant-numeric:tabular-nums;font-size:10px}.ldq-reset,.ldq-empty button,.ldq-more button{border:1px solid var(--card-border,#d9e4f2);min-height:42px;color:var(--text,#162544);background:var(--surface,#fff);font:inherit;cursor:pointer;border-radius:6px;justify-content:center;align-items:center;gap:7px;font-size:12px;font-weight:800;display:inline-flex}.ldq-reset{padding:0 12px}.ldq-reset:hover,.ldq-empty button:hover,.ldq-more button:hover{border-color:var(--primary,#2f9ae6);background:var(--button-ghost-hover-bg,#2f9ae614)}.ldq-result-count{min-height:46px;color:var(--muted,#526d96);font-variant-numeric:tabular-nums;justify-content:space-between;align-items:center;gap:16px;font-size:12px;display:flex}.ldq-result-count strong{color:var(--text,#162544);font-size:14px}.ldq-lesson-list{border-top:1px solid var(--ldq-line);margin:0;padding:0;list-style:none}.ldq-lesson-row{border-bottom:1px solid var(--ldq-line);grid-template-columns:46px minmax(0,1fr);gap:16px;min-height:188px;padding:20px 0 21px;display:grid}.ldq-lesson-index{color:var(--muted-soft,#7890b2);font-variant-numeric:tabular-nums;padding-top:2px;font-size:11px;font-weight:800}.ldq-lesson-body{min-width:0}.ldq-lesson-kicker{color:var(--muted,#526d96);justify-content:space-between;align-items:flex-start;gap:18px;font-size:11px;font-weight:750;line-height:1.4;display:flex}.ldq-lesson-kicker span:first-child{min-width:0}.ldq-lesson-kicker span:last-child{color:var(--muted-soft,#7890b2);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none}.ldq-lesson-body h3{letter-spacing:0;margin:7px 0 5px;font-size:18px;line-height:1.3}.ldq-lesson-body>p{max-width:900px;color:var(--muted,#526d96);margin:0;font-size:13.5px;line-height:1.5}.ldq-lesson-facts{border-top:1px solid var(--ldq-line-soft);grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:18px;margin:13px 0 0;padding-top:11px;display:grid}.ldq-lesson-facts div{grid-template-columns:70px minmax(0,1fr);gap:8px;display:grid}.ldq-lesson-facts dt{color:var(--muted-soft,#7890b2);letter-spacing:0;text-transform:uppercase;font-size:10px;font-weight:800}.ldq-lesson-facts dd{overflow-wrap:anywhere;min-width:0;margin:0;font-size:12px;line-height:1.45}.ldq-lesson-actions{flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:13px;display:flex}.ldq-lesson-actions code{min-width:0;color:var(--muted-soft,#7890b2);overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px}.ldq-lesson-actions a{min-height:28px;font-size:12px}.ldq-empty{border-top:1px solid var(--ldq-line);border-bottom:1px solid var(--ldq-line);flex-direction:column;justify-content:center;align-items:flex-start;min-height:230px;padding:36px 0;display:flex}.ldq-empty h3{letter-spacing:0;margin:0 0 7px;font-size:17px}.ldq-empty p{max-width:580px;color:var(--muted,#526d96);margin:0;font-size:13px;line-height:1.5}.ldq-empty button{margin-top:16px;padding:0 13px}.ldq-more{align-items:center;gap:12px;min-height:76px;padding-right:76px;display:flex}.ldq-more button{padding:0 14px}.ldq-more>span{color:var(--muted-soft,#7890b2);font-variant-numeric:tabular-nums;font-size:11px}.ldq-graph{margin-top:52px}.ldq-table-wrap{border-top:1px solid var(--ldq-line);scrollbar-gutter:stable;overflow-x:auto}.ldq-table-wrap:focus-visible{outline:3px solid var(--button-focus-ring,#2f9ae647);outline-offset:3px}.ldq-table-wrap table{border-collapse:collapse;width:100%;min-width:730px;font-size:12px}.ldq-table-wrap th,.ldq-table-wrap td{border-bottom:1px solid var(--ldq-line-soft);text-align:left;vertical-align:top;padding:11px 12px}.ldq-table-wrap th{color:var(--muted,#526d96);background:var(--surface,#fff);letter-spacing:0;text-transform:uppercase;font-size:10px;font-weight:800}.ldq-table-wrap th:nth-child(n+3),.ldq-table-wrap td:nth-child(n+3){text-align:right;font-variant-numeric:tabular-nums;width:104px}.ldq-table-wrap td b{font-size:12.5px;line-height:1.35;display:block}.ldq-table-wrap td small{color:var(--muted-soft,#7890b2);margin-top:2px;font-size:10.5px;display:block}@media (width<=1040px){.ldq-filters{grid-template-columns:minmax(0,1fr) minmax(280px,1fr)}.ldq-search-control{grid-column:1/-1}.ldq-reset{justify-self:start}}@media (width<=880px){.ldq-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.ldq-stats div:nth-child(3n){border-right:0}.ldq-lesson-facts{grid-template-columns:1fr;gap:8px}}@media (width<=660px){.ldq-shell{width:min(100% - 20px,1320px);padding-top:20px}.ldq-head,.ldq-section-title{flex-direction:column;align-items:flex-start}.ldq-head{gap:16px}.ldq-head h1{font-size:28px}.ldq-back{min-height:38px}.ldq-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.ldq-stats div,.ldq-stats div:nth-child(3n){border-right:1px solid var(--ldq-line-soft);min-height:90px}.ldq-stats div:nth-child(2n){border-right:0}.ldq-truth{margin-bottom:34px}.ldq-section-title{gap:5px}.ldq-filters{grid-template-columns:minmax(0,1fr);gap:13px}.ldq-search-control{grid-column:auto}.ldq-subject-options button{font-size:11.5px}.ldq-result-count{flex-direction:column;justify-content:center;align-items:flex-start;gap:2px;padding:8px 0}.ldq-lesson-row{grid-template-columns:34px minmax(0,1fr);gap:8px;min-height:0;padding:18px 0 19px}.ldq-lesson-kicker{flex-direction:column;gap:3px}.ldq-lesson-kicker span:last-child{white-space:normal}.ldq-lesson-body h3{font-size:17px}.ldq-lesson-facts div{grid-template-columns:1fr;gap:3px}.ldq-lesson-actions{flex-direction:column;align-items:flex-start;gap:8px}.ldq-more{flex-direction:column;justify-content:center;align-items:flex-start;gap:6px}.ldq-graph{margin-top:44px}}@media (prefers-reduced-motion:reduce){.ldq-back,.ldq-subject-options button,.ldq-reset,.ldq-empty button,.ldq-more button{transition:none}}