.learning-companion{--learning-color: var(--topic-accent, #517b72);box-sizing:border-box;width:100%;max-width:1120px;margin:56px auto 32px;color:var(--ink);font:16px/1.85 var(--ui-font);text-align:left;border-top:1px solid var(--border);padding-top:36px}.learning-companion *,.learning-companion *:before,.learning-companion *:after{box-sizing:border-box}.app-shell+.learning-companion{width:calc(100% - 48px)}.learning-companion .learning-heading{margin-bottom:24px}.learning-companion .learning-kicker{margin:0 0 8px;color:var(--secondary);font-size:11px;font-weight:650;letter-spacing:.18em}.learning-companion .learning-title{margin:0;color:var(--ink);font-size:clamp(23px,2.5vw,31px);line-height:1.35;font-weight:650;letter-spacing:-.035em}.learning-task{display:grid;grid-template-columns:.9fr 1.3fr;gap:32px;padding:25px 28px;margin-bottom:28px;background:var(--tint);border-radius:14px;border:1px solid var(--border)}.learning-label{display:block;font-size:11px;font-weight:650;letter-spacing:.09em;color:var(--secondary);margin-bottom:9px}.learning-companion .learning-task p{margin:0;color:var(--ink);line-height:1.85;font-size:16px}.learning-companion .learning-predict p{font-size:19px;font-weight:600;line-height:1.65;letter-spacing:-.025em}.learning-observe{border-left:1px solid var(--border);padding-left:32px}.learning-companion .learning-details{margin:0;padding:0;border:0;border-top:1px solid var(--border);border-radius:0;background:transparent;box-shadow:none}.learning-companion .learning-details:last-child{border-bottom:1px solid var(--border)}.learning-companion .learning-summary{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 20px;position:relative;padding:23px 34px 23px 0;color:var(--ink);font-size:18px;font-weight:600;line-height:1.5;cursor:pointer;list-style:none}.learning-summary::-webkit-details-marker{display:none}.learning-summary:after{content:"+";position:absolute;right:5px;top:22px;font-size:21px;font-weight:400;color:var(--secondary)}.learning-details[open]>.learning-summary:after{content:"−"}.learning-summary-note{color:var(--secondary);font-size:12px;font-weight:400;letter-spacing:.01em}.learning-detail-body{padding:2px 0 30px}.learning-chapters{max-width:900px}.learning-chapter{display:grid;grid-template-columns:35px minmax(0,1fr);gap:18px;padding:19px 0}.learning-number{color:var(--secondary);font-size:12px;font-variant-numeric:tabular-nums;padding-top:4px}.learning-companion h3{color:var(--ink);font:600 18px/1.65 var(--ui-font);letter-spacing:-.02em;margin:0 0 9px}.learning-companion p{color:var(--secondary);font-size:15px;line-height:1.95;margin:0;overflow-wrap:anywhere}.learning-distinctions{display:grid;grid-template-columns:1fr 1fr;gap:25px;padding:25px;margin:22px 0 28px;background:var(--tint);border-radius:12px}.learning-companion .learning-distinctions h3{font-size:14px}.learning-companion .learning-distinctions p{font-size:13px}.learning-references{padding-left:53px}.learning-companion .learning-references h3{font-size:13px}.learning-sources{padding-left:18px;margin:9px 0 0;color:var(--secondary)}.learning-sources li{padding:3px 0}.learning-companion .learning-sources a{color:var(--secondary);font-size:13px;text-underline-offset:4px;overflow-wrap:anywhere}.learning-companion a:hover{color:var(--ink)}.learning-toolbar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center;padding:6px 0 23px}.learning-downloads{display:flex;gap:8px;flex-wrap:wrap}.learning-companion :is(button,.learning-download){display:inline-flex;align-items:center;text-decoration:none;width:auto;min-width:0;min-height:42px;padding:9px 15px;font:500 12px/1.5 var(--ui-font);border:1px solid var(--border);border-radius:8px;color:var(--ink);background:var(--surface);cursor:pointer}.learning-companion :is(button,.learning-download):hover{background:var(--tint);border-color:var(--secondary)}.learning-companion .learning-cue-toggle{display:flex;flex:none;flex-direction:row;gap:8px;align-items:center;color:var(--secondary);font-size:12px;font-weight:400;min-width:0;min-height:36px}.learning-cue-toggle input{width:16px;height:16px;accent-color:var(--learning-color)}.learning-script{list-style:none;margin:0;padding:0;max-width:920px}.learning-segment{display:grid;grid-template-columns:35px minmax(0,1fr);gap:18px;padding:22px 0;border-top:1px solid var(--border)}.learning-segment-number{color:var(--secondary);font-size:12px;font-variant-numeric:tabular-nums}.learning-companion .learning-segment h3{color:var(--secondary);font-size:12px;margin:0 0 10px;font-weight:500}.learning-companion .learning-segment-words>p:not(.learning-cue){color:var(--ink);font-size:17px;line-height:2}.learning-companion .learning-cue{font-size:12px;line-height:1.8;border-left:2px solid var(--border);padding:2px 0 2px 13px;margin-top:14px}.learning-companion [hidden]{display:none!important}.learning-companion :is(button,summary,a,input):focus-visible{outline:2px solid var(--ink);outline-offset:5px}.encyclopedia-nav .learning-jump{font-size:12px;border:1px solid var(--border);border-radius:6px;padding:7px 10px;min-height:36px;line-height:20px}#learning-companion,#academic-notes,#narration{scroll-margin-top:25px}@media(max-width:620px){.learning-companion{margin-top:38px;padding-top:27px}.app-shell+.learning-companion{width:calc(100% - 28px)}.learning-task{grid-template-columns:1fr;padding:20px;gap:20px}.learning-observe{border-left:0;padding-left:0;border-top:1px solid var(--border);padding-top:18px}.learning-companion .learning-task p{font-size:15px}.learning-companion .learning-predict p{font-size:18px}.learning-chapter,.learning-segment{grid-template-columns:23px minmax(0,1fr);gap:10px}.learning-distinctions{grid-template-columns:1fr;padding:20px;gap:20px}.learning-references{padding-left:0}.learning-companion .learning-segment-words>p:not(.learning-cue){font-size:16px}}@media(prefers-reduced-motion:no-preference){.learning-companion :is(button,.learning-download){transition:background-color .16s,border-color .16s}}