.ldq-shell,.ldq-shell *{box-sizing:border-box}body:has(.ldq-shell){min-height:100vh;background:var(--app-page-bg, var(--surface, #fff))}.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,calc(100% - 48px));min-height:100vh;margin:0 auto;padding:34px 0 calc(128px + env(safe-area-inset-bottom));color:var(--text, #162544)}.ldq-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.ldq-head{display:flex;justify-content:space-between;align-items:flex-start;gap:28px}.ldq-head>div{min-width:0}.ldq-head p{margin:0 0 5px;color:var(--muted, #526d96);font-size:11px;font-weight:800;letter-spacing:0;text-transform:uppercase}.ldq-head h1{margin:0;font-size:34px;line-height:1.1;letter-spacing:0}.ldq-head>div>span{display:block;max-width:720px;margin-top:9px;color:var(--muted, #526d96);font-size:14px;line-height:1.5}.ldq-back,.ldq-lesson-actions a{display:inline-flex;align-items:center;justify-content:center;gap:7px;color:var(--primary, #1f6fc6);font-weight:800;text-decoration:none}.ldq-back{flex:0 0 auto;min-height:40px;padding:0 12px;border:1px solid var(--ldq-line);border-radius:6px;background:var(--surface, #fff);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, rgba(47, 154, 230, .28));outline-offset:2px}.ldq-stats{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));margin:30px 0 0;border-top:1px solid var(--ldq-line)}.ldq-stats div{min-height:96px;padding:18px 16px;border-right:1px solid var(--ldq-line-soft);border-bottom:1px solid var(--ldq-line)}.ldq-stats div:last-child{border-right:0}.ldq-stats b{display:block;font-size:28px;line-height:1.05;font-variant-numeric:tabular-nums}.ldq-stats span{display:block;margin-top:5px;color:var(--muted, #526d96);font-size:12px;line-height:1.35}.ldq-truth{margin:14px 0 42px;color:var(--muted, #526d96);font-size:13px;line-height:1.5}.ldq-section-title{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:15px}.ldq-section-title>div{min-width:0}.ldq-section-title h2{margin:0;font-size:21px;line-height:1.25;letter-spacing:0}.ldq-section-title span{color:var(--muted, #526d96);font-size:13px;line-height:1.45}.ldq-section-title>div>span{display:block;margin-top:4px}.ldq-section-title>span{flex:0 0 auto;font-weight:700;font-variant-numeric:tabular-nums}.ldq-filters{display:grid;grid-template-columns:minmax(290px,1.25fr) minmax(270px,.9fr) minmax(260px,1fr) auto;align-items:end;gap:14px;padding:16px 0;border-top:1px solid var(--ldq-line);border-bottom:1px solid var(--ldq-line)}.ldq-control{display:grid;min-width:0;gap:7px}.ldq-control-label{display:block;color:var(--muted-soft, #7890b2);font-size:10px;font-weight:800;line-height:1;letter-spacing:0;text-transform:uppercase}.ldq-search-field{position:relative;display:block;min-width:0}.ldq-search-field>svg{position:absolute;top:50%;left:13px;color:var(--muted-soft, #7890b2);pointer-events:none;transform:translateY(-50%)}.ldq-search-field input,.ldq-control select{width:100%;height:42px;border:1px solid var(--card-border, #d9e4f2);border-radius:6px;color:var(--text, #162544);background:var(--surface, #fff);font:inherit;font-size:13px;outline:none}.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{padding:0 34px 0 11px;text-overflow:ellipsis}.ldq-search-field input:focus,.ldq-control select:focus{border-color:var(--primary, #2f9ae6);box-shadow:0 0 0 3px var(--button-focus-ring, rgba(47, 154, 230, .2))}.ldq-subject-control{min-width:0;padding:0;margin:0;border:0}.ldq-subject-control legend{margin-bottom:7px}.ldq-subject-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));height:42px;border:1px solid var(--card-border, #d9e4f2);border-radius:6px;overflow:hidden}.ldq-subject-options button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:0;border:0;border-right:1px solid var(--card-border, #d9e4f2);border-radius:0;color:var(--muted, #526d96);background:var(--surface, #fff);font:inherit;font-size:12px;font-weight:800;cursor:pointer}.ldq-subject-options button:last-child{border-right:0}.ldq-subject-options button:hover{background:var(--button-ghost-hover-bg, rgba(47, 154, 230, .08))}.ldq-subject-options button.is-active{color:var(--text, #162544);background:var(--qb-accent-soft, rgba(47, 154, 230, .12));box-shadow:inset 0 -2px 0 var(--primary, #2f9ae6)}.ldq-subject-options button:focus-visible{position:relative;z-index:1;outline:3px solid var(--button-focus-ring, rgba(47, 154, 230, .28));outline-offset:-3px}.ldq-subject-options small{min-width:22px;color:var(--muted-soft, #7890b2);font-size:10px;font-variant-numeric:tabular-nums}.ldq-reset,.ldq-empty button,.ldq-more button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;border:1px solid var(--card-border, #d9e4f2);border-radius:6px;color:var(--text, #162544);background:var(--surface, #fff);font:inherit;font-size:12px;font-weight:800;cursor:pointer}.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, rgba(47, 154, 230, .08))}.ldq-result-count{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:46px;color:var(--muted, #526d96);font-size:12px;font-variant-numeric:tabular-nums}.ldq-result-count strong{color:var(--text, #162544);font-size:14px}.ldq-lesson-list{padding:0;margin:0;border-top:1px solid var(--ldq-line);list-style:none}.ldq-lesson-row{display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;min-height:188px;padding:20px 0 21px;border-bottom:1px solid var(--ldq-line)}.ldq-lesson-index{padding-top:2px;color:var(--muted-soft, #7890b2);font-size:11px;font-weight:800;font-variant-numeric:tabular-nums}.ldq-lesson-body{min-width:0}.ldq-lesson-kicker{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;color:var(--muted, #526d96);font-size:11px;font-weight:750;line-height:1.4}.ldq-lesson-kicker span:first-child{min-width:0}.ldq-lesson-kicker span:last-child{flex:0 0 auto;color:var(--muted-soft, #7890b2);font-variant-numeric:tabular-nums;white-space:nowrap}.ldq-lesson-body h3{margin:7px 0 5px;font-size:18px;line-height:1.3;letter-spacing:0}.ldq-lesson-body>p{max-width:900px;margin:0;color:var(--muted, #526d96);font-size:13.5px;line-height:1.5}.ldq-lesson-facts{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:18px;margin:13px 0 0;padding-top:11px;border-top:1px solid var(--ldq-line-soft)}.ldq-lesson-facts div{display:grid;grid-template-columns:70px minmax(0,1fr);gap:8px}.ldq-lesson-facts dt{color:var(--muted-soft, #7890b2);font-size:10px;font-weight:800;letter-spacing:0;text-transform:uppercase}.ldq-lesson-facts dd{min-width:0;margin:0;font-size:12px;line-height:1.45;overflow-wrap:anywhere}.ldq-lesson-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;margin-top:13px}.ldq-lesson-actions code{min-width:0;color:var(--muted-soft, #7890b2);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px;overflow-wrap:anywhere}.ldq-lesson-actions a{min-height:28px;font-size:12px}.ldq-empty{min-height:230px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:36px 0;border-top:1px solid var(--ldq-line);border-bottom:1px solid var(--ldq-line)}.ldq-empty h3{margin:0 0 7px;font-size:17px;letter-spacing:0}.ldq-empty p{max-width:580px;margin:0;color:var(--muted, #526d96);font-size:13px;line-height:1.5}.ldq-empty button{margin-top:16px;padding:0 13px}.ldq-more{display:flex;align-items:center;gap:12px;min-height:76px;padding-right:76px}.ldq-more button{padding:0 14px}.ldq-more>span{color:var(--muted-soft, #7890b2);font-size:11px;font-variant-numeric:tabular-nums}.ldq-graph{margin-top:52px}.ldq-table-wrap{overflow-x:auto;border-top:1px solid var(--ldq-line);scrollbar-gutter:stable}.ldq-table-wrap:focus-visible{outline:3px solid var(--button-focus-ring, rgba(47, 154, 230, .28));outline-offset:3px}.ldq-table-wrap table{width:100%;min-width:730px;border-collapse:collapse;font-size:12px}.ldq-table-wrap th,.ldq-table-wrap td{padding:11px 12px;border-bottom:1px solid var(--ldq-line-soft);text-align:left;vertical-align:top}.ldq-table-wrap th{color:var(--muted, #526d96);background:var(--surface, #fff);font-size:10px;font-weight:800;letter-spacing:0;text-transform:uppercase}.ldq-table-wrap th:nth-child(n+3),.ldq-table-wrap td:nth-child(n+3){width:104px;text-align:right;font-variant-numeric:tabular-nums}.ldq-table-wrap td b{display:block;font-size:12.5px;line-height:1.35}.ldq-table-wrap td small{display:block;margin-top:2px;color:var(--muted-soft, #7890b2);font-size:10.5px}@media(max-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(max-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(max-width:660px){.ldq-shell{width:min(100% - 20px,1320px);padding-top:20px}.ldq-head,.ldq-section-title{align-items:flex-start;flex-direction:column}.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){min-height:90px;border-right:1px solid var(--ldq-line-soft)}.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{align-items:flex-start;flex-direction:column;justify-content:center;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{align-items:flex-start;flex-direction:column;gap:8px}.ldq-more{align-items:flex-start;flex-direction:column;justify-content:center;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}}