.l-facts{background:var(--paper);border:3px solid var(--ink);box-shadow:8px 8px 0 rgba(20,23,26,.16);padding:16px 20px 18px}
.l-facts .caps{display:flex;align-items:center;gap:9px;margin-bottom:6px}
.l-facts .facts-list{max-width:none;margin-bottom:14px}
.page-lesson .sub-head{padding-bottom:36px}
.l-switch{padding:0 0 60px;background:linear-gradient(rgba(20,23,26,.055) 1px,transparent 1px) 0 0/100% 28px,linear-gradient(90deg,rgba(20,23,26,.055) 1px,transparent 1px) 0 0/28px 100%,var(--ground)}
.l-switch-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:28px 40px;align-items:start}
.l-bench{min-width:0;background:var(--paper);border:3px solid var(--ink);box-shadow:10px 10px 0 rgba(20,23,26,.16)}
.l-bench-title{margin:0;font:inherit;letter-spacing:inherit}
.l-tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));border-bottom:var(--rule) solid var(--ink)}
.l-tab{display:flex;align-items:center;gap:8px;min-height:56px;min-width:0;border:0;border-right:1px solid var(--ink);border-radius:0;background:var(--paper);padding:8px 10px 4px;font-family:var(--slab);font-weight:700;font-size:18.5px;line-height:1;text-align:left;cursor:pointer;transition:background-color var(--t-snap) linear,color var(--t-snap) linear}
.l-tab:last-child{border-right:0}
.l-tab-lamp{width:12px;height:12px;flex:none;border-radius:50%;border:var(--rule) solid var(--ink);background:var(--paper);transform:translateY(-2px)}
.l-tab:hover{background:var(--tint)}
.l-tab[aria-selected="true"]{background:var(--tone);color:var(--on-tone);box-shadow:inset 0 4px 0 rgba(20,23,26,.3)}
.l-tab[aria-selected="true"] .l-tab-lamp{background:var(--yellow);box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.l-tab:focus-visible{position:relative;z-index:1}
html:not(.js) .l-tabs{display:none}
.l-panel{padding:18px 22px 24px;min-width:0}
.js .l-panel:not(.is-on){display:none}
html:not(.js) .l-panel + .l-panel{border-top:var(--rule) solid var(--ink)}
.l-panel:focus-visible{outline-offset:-5px;box-shadow:none}
.l-panel-label{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--grey)}
.l-panel-label::after{content:"";flex:1;height:14px;border-right:2px solid var(--ink);background:linear-gradient(var(--ink),var(--ink)) left center/100% 1.5px no-repeat}
.l-panel-label .caps{font-size:14.5px;padding-top:2px}
.l-read{display:grid;grid-template-columns:minmax(0,var(--measure)) minmax(220px,1fr);gap:22px 40px;align-items:start}
.l-read .answer{margin-top:0}
.l-read .prose{margin-top:16px}
.l-contents .caps{margin-bottom:8px}
.l-contents ol{border-top:var(--rule) solid var(--ink);border-bottom:var(--rule) solid var(--ink)}
.l-contents li + li{border-top:1px solid var(--hair)}
.l-contents a{display:flex;align-items:center;gap:12px;min-height:48px;padding:7px 8px 5px 0;font-family:var(--slab);font-weight:700;font-size:19px;line-height:1.1;text-decoration:none;background:linear-gradient(var(--tone),var(--tone)) left bottom/0 100% no-repeat;transition:background-size var(--t-move) var(--move),color var(--t-snap) linear,padding var(--t-move) var(--move)}
.l-contents a:hover,.l-contents a:focus-visible{background-size:100% 100%;color:var(--on-tone);padding-left:8px;padding-right:0}
.l-contents a:hover .pos,.l-contents a:focus-visible .pos{background:var(--ink);color:#fff}
.l-video-screen{display:grid}
.l-video-screen > *{grid-area:1/1}
.l-video-start{place-self:center;z-index:1}
.l-video.is-started .l-video-start{display:none}
.l-video.is-started .slot-fill{background:repeating-linear-gradient(135deg,var(--paper) 0 10px,var(--shade) 10px 12px)}
.l-transcript{margin-top:20px}
.l-stepper{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:18px 30px;align-items:start}
.l-captions li{display:grid;grid-template-columns:34px minmax(0,1fr);gap:4px 14px;padding:10px 0 12px;border-top:1px solid var(--hair);font-size:17px;line-height:1.5}
.l-captions li:first-child{border-top:var(--rule) solid var(--ink)}
.js .l-captions li:not(.is-on){display:none}
.js .l-captions li.is-on{border-top:var(--rule) solid var(--ink)}
.l-caption-title{font-family:var(--slab);font-weight:700;font-size:24px;line-height:1.05;padding-top:5px;margin-bottom:6px}
.l-stepper-bar{grid-column:1/-1;display:flex;align-items:center;gap:14px 20px;border-top:2px dashed var(--ink);padding-top:14px}
html:not(.js) .l-stepper-bar{display:none}
.l-progress{flex:1;min-width:0;display:grid;gap:5px}
.l-progress-text{font-family:var(--slab);font-weight:700;font-size:18px;line-height:1}
.l-prev[disabled],.l-next[disabled]{opacity:.4;cursor:default}
.l-course{border-top:var(--rule) solid var(--ink);border-bottom:var(--rule) solid var(--ink)}
.l-course li{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:4px 14px;align-items:center;min-height:56px;padding:8px 10px 6px 8px}
.l-course li + li{border-top:1px solid var(--hair)}
.l-course-title{font-family:var(--slab);font-weight:700;font-size:22px;line-height:1.1;padding-top:3px;justify-self:start}
a.l-course-title{text-decoration:none;background:linear-gradient(var(--tone),var(--tone)) left bottom/100% 4px no-repeat;transition:background-size var(--t-move) var(--move),color var(--t-snap) linear}
a.l-course-title:hover,a.l-course-title:focus-visible{background-size:100% 100%;color:var(--on-tone)}
.l-course .is-here{background:var(--tint)}
.l-course .is-here .pos{background:var(--ink);color:#fff}
.l-course .plate{font-size:16px;padding:7px 18px 5px}
.l-course-foot{margin-top:12px}
.l-calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px 30px;align-items:stretch}
.l-calc-fields{display:grid;gap:14px;align-content:start}
.l-field{display:grid;gap:5px}
.l-field select,.l-field input{width:100%;height:48px;border:var(--rule) solid var(--ink);border-radius:0;background:#fff;color:var(--ink);padding:0 12px;font:inherit;font-size:18px}
.l-field select:focus-visible{outline:3px solid var(--ink);outline-offset:2px;box-shadow:0 0 0 2px #fff,0 0 0 9px var(--yellow)}
.l-result{display:flex;flex-direction:column;justify-content:center;gap:8px;border:3px solid var(--ink);background:var(--tint);padding:18px 20px 16px}
.l-result-value{font-family:var(--slab);font-weight:800;font-size:clamp(30px,3.4vw,46px);line-height:1}
.l-calc-way{grid-column:1/-1;max-width:var(--measure)}
.l-play{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:18px 30px;align-items:start}
.l-play .teaser{height:auto}
.l-play-note{border-top:var(--rule) solid var(--ink);padding-top:10px;font-size:17px}
.l-play-note .caps{margin-bottom:6px}
.l-switch-side{display:grid;gap:18px;min-width:0}
.l-book .stamp-cover h3{font-size:36px}
.l-book .stamp-fields{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px 6px;padding:16px 0 12px}
.l-book .stamp-ring{width:56px;height:56px;font-size:26px}
.l-book .stamp-name{font-size:15px}
.l-stamp-here{grid-column:span 2}
.l-stamp-here .stamp-ring{border:3px solid var(--ink);background:var(--tint);color:var(--ink)}
.l-pager{display:grid;gap:10px}
.l-pager-link{display:grid;gap:3px;background:var(--paper);border:var(--rule) solid var(--ink);padding:10px 14px 8px;text-decoration:none;transition:background-color var(--t-snap) linear,color var(--t-snap) linear}
.l-pager-link .caps{font-size:14px;color:var(--grey)}
.l-pager-link strong{font-family:var(--slab);font-weight:700;font-size:21px;line-height:1.1}
.l-pager-link:hover,.l-pager-link:focus-visible{background:var(--tone);color:var(--on-tone)}
.l-pager-link:hover .caps,.l-pager-link:focus-visible .caps{color:inherit}
.l-pager-next{text-align:right}
.page-lesson .sheet{padding:44px 0 66px}
.page-lesson .sheet-body{margin-top:32px}
.page-lesson .sheet h2{font-size:clamp(30px,3.1vw,44px);line-height:1;overflow-wrap:break-word;hyphens:auto}
.page-lesson .scale-box{order:0;border:0;padding:0 0 10px;background:none}
.page-lesson .scale-box::before,.page-lesson .scale-box::after{display:none}
.page-lesson .scale{max-width:760px;margin-inline:auto}
.page-lesson .steps li{padding-bottom:6px}
.l-quiz{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--paper);border:var(--rule) solid var(--ink)}
.l-q{min-width:0;padding:20px 22px 20px;border-bottom:1px solid var(--hair)}
.l-q:nth-child(odd){border-right:1px solid var(--hair)}
.l-q h3{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;font-family:var(--slab);font-weight:700;font-size:23px;line-height:1.1}
.l-q h3 span:last-child{padding-top:6px}
.l-opts{display:grid;gap:8px}
.l-opt{position:relative;display:flex;align-items:center;gap:12px;min-height:48px;border:var(--rule) solid var(--ink);background:#fff;padding:6px 12px 4px 8px;cursor:pointer;transition:background-color var(--t-snap) linear}
.l-opt input{position:absolute;left:8px;top:8px;opacity:0;width:1px;height:1px}
.l-opt-key{display:flex;align-items:center;justify-content:center;width:30px;height:30px;flex:none;border:var(--rule) solid var(--ink);background:var(--ground);font-family:var(--slab);font-weight:800;font-size:18px;line-height:1;padding-top:3px}
.l-opt:hover{background:var(--tint)}
.l-opt:has(input:checked){background:var(--tint)}
.l-opt:has(input:checked) .l-opt-key{background:var(--ink);color:#fff}
.l-opt:has(input:focus-visible){outline:3px solid var(--ink);outline-offset:2px;box-shadow:0 0 0 2px #fff,0 0 0 9px var(--yellow);z-index:1}
.l-opt-mark{margin-left:auto;font-family:var(--slab);font-weight:700;font-size:14px;letter-spacing:.08em;text-transform:uppercase;line-height:1;padding-top:2px;white-space:nowrap}
.l-opt.is-right{background:#E3EADB}
.l-opt.is-right .l-opt-key{background:var(--green);color:#fff}
.l-opt.is-wrong{background:repeating-linear-gradient(135deg,#fff 0 7px,var(--shade) 7px 9px)}
.l-q.is-done .l-opt{cursor:default}
.l-why{margin-top:12px;border-left:6px solid var(--tone);padding-left:12px;font-size:16.5px;line-height:1.5}
.js .l-q:not(.is-done) .l-why{display:none}
.l-quiz-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;border-top:2px dashed var(--ink);padding:14px 22px 14px}
html:not(.js) .l-quiz-foot{display:none}
.l-quiz-result{display:flex;align-items:baseline;gap:12px}
.l-score{font-family:var(--slab);font-weight:800;font-size:36px;line-height:1}
.l-terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:44px}
.l-terms div{display:grid;grid-template-columns:minmax(0,190px) minmax(0,1fr);gap:2px 18px;padding:13px 0 11px;border-bottom:1px solid var(--hair);min-width:0}
.l-terms dt{font-family:var(--slab);font-weight:700;font-size:21px;line-height:1.15;padding-top:2px;overflow-wrap:anywhere;hyphens:auto}
.l-terms dd{font-size:16.5px;line-height:1.5}
.l-onward{border-top:16px solid var(--tone);padding:40px 0 64px;background:linear-gradient(rgba(20,23,26,.08) 1px,transparent 1px) 0 0/100% 24px,linear-gradient(90deg,rgba(20,23,26,.08) 1px,transparent 1px) 0 0/24px 100%,var(--tint)}
.l-onward-title{font-family:var(--slab);font-weight:800;font-size:clamp(28px,2.8vw,40px);line-height:1;margin-bottom:18px}
.l-onward-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;margin-bottom:16px}
@media (max-width:1280px){
  .l-switch-grid{grid-template-columns:minmax(0,1fr)}
  .l-switch-side{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px 30px;align-items:start}
  }
@media (max-width:1000px){
  .l-facts{order:2;margin:16px 0 18px;max-width:640px}
}
@media (max-width:1020px){
  .l-read,.l-stepper,.l-play{grid-template-columns:minmax(0,1fr)}
  .l-terms{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .l-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}
  .l-tab:nth-child(3){border-right:0}
  .l-tab:nth-child(-n+3){border-bottom:1px solid var(--ink)}
  .l-quiz{grid-template-columns:minmax(0,1fr)}
  .l-q:nth-child(odd){border-right:0}
}
@media (max-width:760px){
  .l-switch{padding-bottom:40px}
  .l-bench{box-shadow:5px 5px 0 rgba(20,23,26,.16)}
  .l-panel{padding:14px 14px 18px}
  .l-switch-side{grid-template-columns:minmax(0,1fr)}
  .l-calc{grid-template-columns:minmax(0,1fr)}
  .l-course li{grid-template-columns:34px minmax(0,1fr);padding-inline:6px}
  .l-course li > :last-child{grid-column:2;justify-self:start}
  .l-course-title{font-size:20px}
  .l-stepper-bar{flex-wrap:wrap}
  .l-progress{order:-1;flex-basis:100%}
  .l-stepper-bar .btn{flex:1}
  .page-lesson .sheet{padding:30px 0 46px}
  .page-lesson .sheet-body{margin-top:24px}
  .page-lesson .scale{margin-inline:36px}
  .l-q{padding:16px 14px 16px}
  .l-q h3{font-size:21px}
  .l-quiz-foot{padding:12px 14px}
  .l-terms div{grid-template-columns:minmax(0,1fr)}
  .l-onward-row{grid-template-columns:minmax(0,1fr)}
  .l-onward{border-top-width:12px;padding:30px 0 46px}
}
@media (max-width:520px){
  .l-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .l-tab,.l-tab:nth-child(3){border-right:1px solid var(--ink);border-bottom:1px solid var(--ink)}
  .l-tab:nth-child(even){border-right:0}
  .l-tab:nth-last-child(-n+2){border-bottom:0}
  .l-tab{min-height:50px}
  .page-lesson .sub-head .h1-key{font-size:30px;overflow-wrap:break-word;hyphens:auto}
  .page-lesson .sheet h2{font-size:27px}
}