/* Shared, compact workspace. Student layouts live here; document formatting stays in the editor styles. */
:root{--ui-ink:#252535;--ui-muted:#666777;--ui-line:#e4e4ec;--ui-bg:#f6f6f9;--ui-accent:#6d4bd1;--ui-soft:#f0ebfc;--pk-violet:var(--ui-accent);--pk-violet-strong:#5839b8;--pk-violet-soft:var(--ui-soft)}
body{background:var(--ui-bg);color:var(--ui-ink)}
button,input,textarea,select{font:inherit}
button,a,input,textarea,select,summary{-webkit-tap-highlight-color:transparent}
:where(button,a,input,textarea,select,summary):focus-visible{outline:3px solid #9d86e4;outline-offset:3px}
[hidden]{display:none!important}
.button{min-height:36px;border-radius:8px;font-size:13px}
.button.primary{background:var(--ui-accent);border-color:var(--ui-accent);color:#fff}
.button.primary:hover{background:#5839b8;border-color:#5839b8}
.button:disabled{opacity:.48;cursor:not-allowed}
.eyebrow{font-size:11px;font-weight:750;letter-spacing:1px;color:var(--ui-muted)}

/* Student course overview and reading workspace. */
.learning-app{min-height:100dvh;background:var(--ui-bg)}
.learning-app .app-header{position:sticky;top:0;z-index:35;height:60px;display:flex;gap:24px;padding:0 max(24px,calc((100vw - 1220px)/2));background:#ffffffef;border-bottom:1px solid var(--ui-line);backdrop-filter:blur(12px)}
.learning-app .brand{font-size:21px;gap:7px;flex-shrink:0}
.learning-app .brand>.icon{color:var(--ui-accent)}
.learning-header-label{font-size:13px;color:var(--ui-muted);padding-left:24px;border-left:1px solid var(--ui-line)}
.learning-user{display:flex;align-items:center;gap:7px;margin-left:auto;padding:4px 7px;border:0;border-radius:7px;background:transparent;color:var(--ui-ink);font-size:13px;font-weight:600;max-width:30%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}
.learning-user:hover{background:var(--ui-soft);color:#563893}
.learning-user>.icon{width:28px;height:28px;padding:6px;border-radius:50%;color:var(--ui-accent);background:var(--ui-soft);flex-shrink:0}
.my-access-code{display:grid;justify-items:center;gap:14px;text-align:center}.my-access-code p{margin:0;line-height:1.65;color:var(--ui-muted)}.my-access-code code{display:block;width:100%;padding:15px 18px;border:1px solid #cabceb;border-radius:10px;background:var(--ui-soft);color:#51358d;font-size:30px;font-weight:780;letter-spacing:7px}.my-access-code-note{font-size:12px}
.learning-app .back-button{font-size:13px;color:var(--ui-muted);min-height:40px}
.learning-course-main{max-width:1120px;margin:auto;padding:36px 24px 48px}
.learning-course-intro{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:0 0 28px;border-bottom:1px solid var(--ui-line)}
.learning-course-intro h1{font-size:clamp(26px,3vw,36px);letter-spacing:-1px;line-height:1.2;margin:8px 0 12px;color:var(--ui-ink);overflow-wrap:anywhere}
.learning-course-intro p:not(.eyebrow){margin:6px 0;color:var(--ui-muted);font-size:15px;line-height:1.6}
.learning-course-intro .learning-course-description{max-width:650px;font-size:14px}
.learning-course-count{display:grid;place-items:center;gap:5px;min-width:155px;padding:20px;background:var(--ui-soft);border-radius:14px;color:#58408e}
.learning-course-count strong{font-size:32px;line-height:1}
.learning-course-count span{font-size:12px}
.learning-section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:24px 0 14px}
.learning-section-heading h2{margin:0;font-size:18px;letter-spacing:-.3px}
.learning-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--ui-line);border-radius:8px;padding:0 12px;color:var(--ui-muted);width:260px}
.learning-search .icon{width:16px;height:16px;flex-shrink:0}
.learning-search input{border:0;background:transparent;min-width:0;width:100%;padding:10px 0;font-size:13px;color:var(--ui-ink)}
.learning-search:focus-within{outline:2px solid #9d86e4;outline-offset:2px}
.learning-search input:focus{outline:0;box-shadow:none}
.student-material-list.learning-material-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}
.student-material-list .learning-material-card{display:flex;flex-direction:row;align-items:flex-start;gap:14px;width:100%;padding:20px;text-align:left;border:1px solid var(--ui-line);border-radius:12px;background:#fff;transition:border-color .15s,box-shadow .15s;min-width:0}
.student-material-list .learning-material-card:hover{border-color:#b9a7e8;background:#fff;box-shadow:0 4px 14px #32245909}
.learning-material-number{display:grid;place-items:center;width:38px;height:42px;border-radius:9px;background:var(--ui-soft);color:#70519e;font-size:14px;font-weight:700;flex-shrink:0}
.learning-material-info{display:grid;gap:6px;flex:1;min-width:0}
.learning-material-info>small{font-size:11px;color:var(--ui-muted)}
.learning-material-info>strong{font-size:16px;font-weight:680;line-height:1.45;overflow-wrap:anywhere}
.learning-material-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:8px;font-size:11px;color:var(--ui-muted)}
.learning-card-arrow{font-size:18px;color:var(--ui-muted)}
.learning-empty{padding:24px;border:1px dashed #cbc5db;border-radius:10px;color:var(--ui-muted);grid-column:1/-1;background:#fff;font-size:14px}
.learning-empty h3{color:var(--ui-ink);margin:0 0 6px;font-size:17px}
.learning-empty p{margin:0}
.learning-device-note{display:flex;gap:7px;align-items:center;color:var(--ui-muted);font-size:12px;margin:22px 0}
.learning-device-note .icon{width:15px;height:15px}
.student-material-main.learning-material-main{max-width:1220px;margin:0 auto;padding:20px 24px 44px;background:none}
.learning-breadcrumb{display:flex;gap:10px;align-items:center;margin:0 0 18px;font-size:12px;color:var(--ui-muted);min-width:0}
.learning-breadcrumb button{border:0;background:none;padding:3px 0;color:var(--ui-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:65%;text-align:left}
.learning-breadcrumb button:hover{color:var(--ui-accent)}
.learning-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:26px;align-items:start}
.learning-sidebar{position:sticky;top:82px;min-width:0}
.learning-outline{margin:0 0 22px}
.learning-outline summary{display:flex;justify-content:space-between;align-items:center;list-style:none;padding:9px 8px 12px;font-size:13px;font-weight:750;cursor:pointer}
.learning-outline summary::-webkit-details-marker{display:none}
.learning-outline[open] summary>span{transform:rotate(180deg)}
.learning-outline nav{display:grid;gap:3px;max-height:45vh;overflow:auto;scrollbar-width:thin}
.learning-outline-item{display:flex;align-items:baseline;gap:9px;width:100%;padding:9px 8px;border:0;border-radius:7px;background:transparent;color:var(--ui-muted);text-align:left;font-size:12px;line-height:1.4}
.learning-outline-item>span:last-child{min-width:0;overflow-wrap:anywhere}
.learning-outline-item:hover,.learning-outline-item[aria-current]{background:var(--ui-soft);color:#563893}
.learning-outline-item.outline-section{font-weight:700;color:var(--ui-ink)}
.outline-marker{display:inline-flex;align-items:center;justify-content:center;min-width:22px;flex-shrink:0;font-variant-numeric:tabular-nums}
.outline-task .outline-marker{height:22px;border:1px solid #d9d4e5;border-radius:6px;font-size:10px;background:#fff;color:var(--ui-muted)}
.outline-task .outline-marker[data-status=done]{background:#e4f4ea;color:#246b47;border-color:#bcdcc9}
.outline-task .outline-marker[data-status=retry]{background:#fff0ec;color:#a74032;border-color:#edc8bf}
.learning-progress{border:1px solid var(--ui-line);border-radius:10px;padding:16px;background:#fff;display:grid;gap:9px}
.learning-progress strong{font-size:16px}
.learning-progress progress{display:block;width:100%;height:6px;appearance:none;border:0;border-radius:6px;background:var(--ui-soft);overflow:hidden;accent-color:var(--ui-accent)}
.learning-progress progress::-webkit-progress-bar{background:var(--ui-soft)}
.learning-progress progress::-webkit-progress-value{background:var(--ui-accent);border-radius:6px}
.learning-progress progress::-moz-progress-bar{background:var(--ui-accent)}
.learning-progress p,.learning-save-note{color:var(--ui-muted);font-size:12px;line-height:1.55;margin:0}
.learning-save-note{padding:12px 4px;min-height:58px}
.learning-save-note.is-error{color:#b12e31}
.learning-document{min-width:0}
.learning-document .student-material-paper{width:100%;max-width:none;min-height:0;padding:28px 34px;border:1px solid var(--ui-line);border-radius:12px;background:#fff;box-shadow:0 3px 16px #25253503}
.learning-document-header{margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--ui-line)}
.learning-document-header .eyebrow{display:flex;justify-content:space-between;gap:12px;margin:0 0 12px;flex-wrap:wrap}
.learning-document-header .eyebrow>span{font-weight:500;letter-spacing:0;text-transform:none}
.learning-document-header h1{margin:0;font-size:clamp(25px,2.5vw,32px);letter-spacing:-.8px;line-height:1.25;overflow-wrap:anywhere}
.learning-material-pagination{display:flex;justify-content:space-between;gap:12px;margin-top:18px}
.learning-material-pagination .button{display:grid;text-align:left;gap:5px;max-width:48%;padding:12px 15px;font-size:11px;font-weight:500;color:var(--ui-muted);white-space:normal}
.learning-material-pagination .button span{font-size:13px;font-weight:650;color:var(--ui-ink);overflow-wrap:anywhere}
.learning-material-pagination .button:last-child{text-align:right}
.learning-back-to-course{display:block;border:0;background:none;color:var(--ui-muted);font-size:12px;margin:16px auto 0;padding:10px}

/* Consistent exercise cards, feedback and readable compact spacing. */
.student-content{font-size:15px;line-height:1.65;color:var(--ui-ink)}
.student-content .student-block{margin:8px 0;padding:0;scroll-margin-top:80px;min-width:0}
.student-content .document-text{font-size:15px;line-height:1.7;color:var(--ui-ink);overflow-wrap:anywhere}
.student-content .student-heading{margin:20px 0 8px;line-height:1.35;color:var(--ui-ink)}
.student-content .student-heading.h1{font-size:25px}
.student-content .student-heading.h2{font-size:21px}
.student-content .student-heading.h3{font-size:18px}
.student-content .student-block.is-exercise{margin:18px 0;border:1px solid var(--ui-line);border-radius:10px;background:#fff;overflow:visible}
.exercise-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;border-bottom:1px solid var(--ui-line);border-radius:10px 10px 0 0;background:#faf9fd;font-size:12px;color:var(--ui-muted);line-height:1.4}
.exercise-heading>span:first-child{display:flex;align-items:center;gap:8px;font-weight:650}
.exercise-heading b{display:grid;place-items:center;height:23px;min-width:23px;padding:0 4px;background:var(--ui-soft);border-radius:6px;font-size:11px;color:#6544a2}
.exercise-status{display:inline-flex;align-items:center;gap:5px;border-radius:5px;padding:3px 7px;font-size:10px;font-weight:650;line-height:1.5;white-space:nowrap;background:#f0f0f4;color:#69697b}
.exercise-status[data-exercise-status=started]{background:#efebfa;color:#67469d}
.exercise-status[data-exercise-status=done]{background:#e6f4ed;color:#246b47}
.exercise-status[data-exercise-status=done]::before{content:'✓'}
.exercise-status[data-exercise-status=retry]{background:#fff0ec;color:#a74032}
.student-content .student-question{border:0;border-radius:0 0 10px 10px;padding:16px;background:transparent;box-shadow:none;margin:0}
.student-content .student-question h3{font-size:16px;line-height:1.5;font-weight:650;margin:0 0 12px;color:var(--ui-ink);overflow-wrap:anywhere}
.student-content .student-options{gap:7px}
.student-content .student-option{display:flex;align-items:flex-start;padding:10px 12px;min-height:43px;font-size:14px;gap:10px;border:1px solid var(--ui-line);border-radius:7px;background:#fff;line-height:1.5;cursor:pointer;color:var(--ui-ink)}
.student-content .student-option:hover{border-color:#c7b8e8;background:#faf8ff}
.student-content .student-option:has(input:checked){border-color:#b39adf;background:var(--ui-soft)}
.student-content .student-option input{width:17px;height:17px;flex-shrink:0;margin:2px 0 0;accent-color:var(--ui-accent)}
.student-content .student-answer{width:100%;font-size:15px;line-height:1.6;padding:10px 12px;border:1px solid #cbc9d9;border-radius:7px;color:var(--ui-ink);background:#fff;resize:vertical}
.student-content input.calculation-answer{width:min(100%,280px);min-height:44px}
.student-content .activity-instruction{font-size:12px;color:var(--ui-muted);margin:0 0 12px;line-height:1.6}
.student-content .activity-actions{gap:10px;margin-top:14px;flex-wrap:wrap}
.student-content .activity-actions:empty{display:none}
.student-content .activity-actions .button{min-height:36px;font-size:12px;padding:8px 12px}
.student-content .activity-actions .button.quiet{color:var(--ui-muted);background:transparent}
.student-content .activity-feedback{font-size:13px;line-height:1.6;padding:10px 12px;margin:12px 0 0;border-radius:7px}
.student-content .activity-feedback.is-correct{background:#e8f5ed;color:#246744}
.student-content .activity-feedback.try-again{background:#fff0ec;color:#a13b2f}
.student-content .activity-solution{margin-top:12px;padding:12px;background:#f5f3fb;color:var(--ui-ink);font-size:14px;border-radius:7px;white-space:pre-wrap}
.student-content .cloze-exercise{border:0;background:transparent;padding:0;font-size:15px;line-height:2.6}
.student-content .cloze-word-card{min-height:36px;font-size:13px}
.student-content .student-code-exercise{margin:0;border:0;border-radius:0 0 10px 10px;overflow:hidden}
.student-content .callout-block{display:flex;align-items:center;padding:14px 16px;margin:12px 0;border-radius:8px;line-height:1.65}
.student-content .student-link-card{padding:14px;font-size:14px;min-width:0}
.student-content .student-link-card>span{min-width:0}
.student-content .student-link-card strong{font-size:14px;overflow-wrap:anywhere}
.student-content .student-link-card small{font-size:11px;overflow-wrap:anywhere}
.student-content .student-video,.student-content .video-shell{min-width:0;max-width:100%;width:100%}
.student-content .load-video{min-width:0;width:100%;max-width:100%;white-space:normal;overflow-wrap:anywhere}
.student-content .student-callout{align-items:center}
.student-content .student-file-card{min-width:0;flex-wrap:wrap}
.student-content .student-file-card>span{min-width:0;overflow-wrap:anywhere}

/* Matching cards use natural heights. SVG endpoints are measured from their ports. */
.matching-board{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:18%;height:auto;padding:4px 5px;isolation:isolate}
.matching-column,.matching-left-column,.matching-right-column{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;min-width:0;grid-template-rows:none}
.matching-board .matching-card{display:flex;position:relative;align-items:center;gap:5px;width:100%;min-width:0;min-height:46px;height:auto;padding:10px 12px;border:1px solid #d7d4e1;border-radius:7px;background:#fff;color:var(--ui-ink);font-size:13px;line-height:1.45;text-align:left;overflow-wrap:anywhere;box-shadow:0 2px 3px #25253504}
.matching-board .matching-card:hover,.matching-board .matching-card.is-selected,.matching-board .matching-card.is-drop-target{border-color:var(--ui-accent);background:var(--ui-soft)}
.matching-board .matching-left-card{cursor:pointer}
.matching-board .matching-right-card{cursor:grab}
.matching-board .matching-card.is-dragging{opacity:.45}
.matching-board .matching-card.is-selected{outline:2px solid #a68bcc;outline-offset:2px}
.matching-board .matching-card .matching-port{position:absolute;top:50%;right:-5px;left:auto;transform:translateY(-50%);height:9px;width:9px;border:2px solid #fff;border-radius:50%;background:#8764c4;box-shadow:0 0 0 1px #8764c4}
.matching-board .matching-right-card .matching-port{left:-5px;right:auto}
.matching-grip{margin-left:auto;padding-left:3px;color:#a29aac;flex-shrink:0}
.matching-lines{position:absolute;inset:0;width:100%;height:100%;z-index:0;overflow:visible;pointer-events:none}
.matching-lines path{fill:none;stroke:#9c80c8;stroke-width:2;vector-effect:non-scaling-stroke}
.matching-lines path.is-wrong{stroke:#de8c89}
.matching-lines path.is-correct{stroke:#73a78b}
.matching-board .matching-card.is-correct{border-color:#b8d9c5;background:#eaf6ef;color:#286747}
.matching-board .matching-card.is-wrong{border-color:#edbdb7;background:#fde9e7;color:#982e28}
.matching-board .matching-card.is-wrong .matching-status{color:#b5362f}
.matching-status{display:inline-grid;place-items:center;flex-shrink:0;width:15px;margin:0;color:inherit;font-weight:750}
.matching-status:empty{display:none}
.matching-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:12px 0 0;font-size:11px;color:var(--ui-muted)}
.matching-meta .button{min-height:32px;padding:5px 8px;font-size:11px}

/* Teacher workspace: narrower chrome, useful hierarchy, compact authoring. */
.peaklearn-global-nav{width:192px;background:#fff;border-right:1px solid var(--ui-line)}
.peaklearn-logo{gap:8px;padding-inline:6px}.peaklearn-logo strong{font-size:20px;white-space:nowrap}.peaklearn-logo>span{flex-shrink:0}.peaklearn-logo>button{width:24px;min-width:24px;flex-shrink:0;padding:4px}
.peaklearn-editor-page .image-replace{max-width:100%;min-width:0;white-space:normal;overflow-wrap:anywhere}
.peaklearn-course-page,.peaklearn-editor-page{margin-left:192px;background:var(--ui-bg)}
.peaklearn-course-inner,.peaklearn-editor-inner{width:100%;max-width:1520px;padding:22px 28px 36px;margin:auto}
.peaklearn-course-title-row h1,.peaklearn-editor-heading h1{font-size:28px;line-height:1.25;letter-spacing:-.7px}
.peaklearn-editor-header{margin-bottom:20px;gap:16px;align-items:center}
.peaklearn-editor-heading p{font-size:10px;margin:0 0 7px}
.peaklearn-editor-actions{padding-right:44px;gap:16px}
.peaklearn-editor-actions .save-status{font-size:10px}
.peaklearn-editor-page .editor-view-toolbar{top:8px;min-height:52px;padding:7px 10px;margin-bottom:18px;gap:12px;border:1px solid var(--ui-line);border-radius:10px;box-shadow:0 3px 12px #25253505}
.peaklearn-editor-page .editor-context strong{font-size:12px}
.peaklearn-editor-page .editor-context span{font-size:10px}
.peaklearn-editor-page .view-switch button{min-height:34px;font-size:12px;padding:7px 12px}
.peaklearn-editor-page .mode-document>.editor-layout{grid-template-columns:156px minmax(0,1fr);gap:20px}
.peaklearn-editor-page .mode-learning>.editor-layout{display:block}
.teacher-learning-overview{max-width:1040px;margin:0 auto;padding:clamp(20px,3vw,34px);border:1px solid var(--ui-line);border-radius:12px;background:#fff;box-shadow:0 3px 16px #25253503}
.teacher-learning-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;padding:0 0 22px;border-bottom:1px solid var(--ui-line)}
.teacher-learning-header .eyebrow{margin:0 0 7px}.teacher-learning-header h2{margin:0;font-size:25px;letter-spacing:-.6px}.teacher-learning-header p:not(.eyebrow){margin:7px 0 0;color:var(--ui-muted);font-size:13px;line-height:1.55}
.teacher-learning-stats{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.teacher-learning-stats span{display:grid;gap:2px;min-width:78px;padding:9px 11px;border-radius:8px;background:#faf9fd;color:var(--ui-muted);font-size:10px;text-align:center}.teacher-learning-stats b{font-size:18px;color:var(--ui-ink)}
.teacher-learning-table{margin-top:15px}.teacher-learning-table-head,.teacher-learning-row{display:grid;grid-template-columns:minmax(160px,1.15fr) minmax(240px,1.5fr) 80px 140px;align-items:center;gap:16px}.teacher-learning-table-head{padding:0 12px 8px;color:var(--ui-muted);font-size:10px;font-weight:750;letter-spacing:.45px;text-transform:uppercase}.teacher-learning-row{min-height:62px;padding:10px 12px;border-top:1px solid var(--ui-line);font-size:12px}.teacher-student{display:flex;align-items:center;gap:10px;min-width:0}.teacher-student strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.teacher-student-avatar{display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:var(--ui-soft);color:#62429b;font-size:12px;font-weight:750;flex-shrink:0}.teacher-progress{display:flex;align-items:center;gap:10px;min-width:0}.teacher-progress>div{display:grid;grid-template-columns:minmax(80px,1fr) auto;gap:7px;align-items:center;flex:1;min-width:0}.teacher-progress progress{width:100%;height:6px;accent-color:var(--ui-accent);border:0;border-radius:6px;overflow:hidden}.teacher-progress progress::-webkit-progress-bar{background:var(--ui-soft)}.teacher-progress progress::-webkit-progress-value{background:var(--ui-accent);border-radius:6px}.teacher-progress progress::-moz-progress-bar{background:var(--ui-accent)}.teacher-progress span:not(.exercise-status),.teacher-material-count,.teacher-learning-row time{font-size:11px;color:var(--ui-muted);white-space:nowrap}.teacher-learning-empty{padding:30px 12px;color:var(--ui-muted);font-size:13px;text-align:center}
.peaklearn-editor-page .document-outline{top:88px;padding:12px 0}
.peaklearn-editor-page .document-outline>span{font-size:10px;color:var(--ui-muted)}
.peaklearn-editor-page .outline-item{font-size:11px;line-height:1.5;padding:8px}
.peaklearn-editor-page .paper{padding:26px 32px;min-height:600px;border-radius:11px;box-shadow:0 3px 16px #25253503;border-color:var(--ui-line)}
.peaklearn-editor-page .document-heading{padding-bottom:18px;margin-bottom:15px}
.peaklearn-editor-page .document-heading textarea{font-size:30px;line-height:1.25}
.peaklearn-editor-page .document-label{font-size:10px;margin-bottom:8px}
.peaklearn-editor-page .block{margin:0;padding:8px 10px;border-radius:8px}
.peaklearn-editor-page .block-input{font-size:15px;line-height:1.65}
.peaklearn-editor-page .insert-gap{height:14px}
.peaklearn-editor-page .question-block{padding:14px}
.peaklearn-editor-page .block-toolbar{border-radius:7px}
.peaklearn-editor-page .callout-editor{align-items:center}
.peaklearn-editor-page .add-block-footer{padding-top:14px;margin-top:16px}
.peaklearn-editor-page .type-button{min-height:35px;font-size:11px}
.peaklearn-editor-page .editor-bottom-note{padding:12px 0;font-size:10px}
.peaklearn-course-layout{gap:22px}
.peaklearn-material-row{border-radius:8px}
.peaklearn-editor-shell~.version-floating{top:19px;right:22px;width:34px;height:34px}
.is-preview-workspace .peaklearn-editor-page{margin-left:0;background:#fff}
.is-preview-workspace .peaklearn-editor-inner{max-width:none;width:100%;padding:0}
.is-preview-workspace .editor-view-toolbar{top:0;border-width:0 0 1px;border-radius:0;margin:0;min-height:56px}
.is-preview-workspace .inline-preview-pane{padding:20px 24px 48px;min-height:calc(100dvh - 56px)}
.is-preview-workspace .inline-preview-toolbar{max-width:880px;margin:0 auto 12px}
.is-preview-workspace .inline-preview-paper{max-width:880px;padding:22px 28px}
.is-preview-workspace .inline-preview-title{padding-bottom:18px;margin-bottom:20px;border-bottom:1px solid var(--ui-line)}
.is-preview-workspace .inline-preview-title h1{font-size:30px}
.is-preview-workspace .inline-preview-paper .student-block{margin:7px 0;padding:0}
.is-preview-workspace .inline-preview-paper .student-block.is-exercise{margin:16px 0}
.join-main{min-height:calc(100dvh - 60px);padding:32px 18px}
.join-card{max-width:480px;padding:28px;border-radius:12px}
.join-card h1{font-size:27px;letter-spacing:-.6px}
.join-card input{font-size:16px;min-height:44px}
.join-card .button{min-height:42px}

@media(max-width:1100px){
  .peaklearn-global-nav{width:168px}.peaklearn-course-page,.peaklearn-editor-page{margin-left:168px}
  .peaklearn-course-inner,.peaklearn-editor-inner{padding:20px}
  .peaklearn-editor-page .mode-document>.editor-layout{grid-template-columns:130px minmax(0,1fr);gap:14px}
  .peaklearn-editor-page .paper{padding:24px}
  .learning-layout{grid-template-columns:190px minmax(0,1fr);gap:18px}
  .learning-document .student-material-paper{padding:24px}
}
@media(max-width:900px){
  .peaklearn-global-nav{width:64px}.peaklearn-course-page,.peaklearn-editor-page{margin-left:64px}
  .peaklearn-editor-actions{flex-wrap:wrap;gap:6px}
  .peaklearn-editor-page .editor-context span{display:none}
  .peaklearn-editor-page .mode-document>.editor-layout{display:block}
  .peaklearn-editor-page .document-outline{display:none}
  .teacher-learning-table-head{display:none}.teacher-learning-row{grid-template-columns:minmax(0,1fr) minmax(165px,1fr);gap:9px 15px}.teacher-material-count,.teacher-learning-row time{padding-left:39px}.teacher-material-count::before{content:'Materialien: ';}.teacher-learning-row time::before{content:'Aktiv: ';}
}
@media(max-width:800px){
  .learning-app .app-header{padding:0 18px;gap:16px}
  .learning-layout{display:block}
  .learning-sidebar{position:static;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:start;margin-bottom:14px}
  .learning-outline{grid-column:1/-1;grid-row:2;background:#fff;border:1px solid var(--ui-line);border-radius:8px;margin:0;padding:0 10px}
  .learning-outline summary{padding:12px 0}
  .learning-outline nav{max-height:260px;padding-bottom:10px}
  .learning-progress{grid-column:1;grid-row:1;border:0;background:none;border-radius:0;padding:0;grid-template-columns:auto minmax(60px,180px);align-items:center;gap:8px 14px}
  .learning-progress .eyebrow,.learning-progress p{display:none}
  .learning-progress strong{font-size:12px}
  .learning-save-note{grid-column:2;grid-row:1;padding:0;min-height:0;font-size:10px;max-width:175px}
  .student-material-main.learning-material-main{padding:16px 18px 32px}
}
@media(max-width:600px){
  .learning-app .app-header{height:56px;padding:0 14px;gap:12px}
  .learning-app .brand{font-size:18px}.learning-app .brand>.icon{width:21px}
  .learning-header-label{display:none}
  .learning-user{font-size:12px;max-width:32%;gap:4px}
  .learning-user{padding:3px}.learning-user span{overflow:hidden;text-overflow:ellipsis}
  .my-access-code code{font-size:25px;letter-spacing:5px}
  .learning-app .back-button{font-size:12px;gap:5px;padding:0}
  .learning-app .back-button span{display:inline}
  .learning-course-main{padding:24px 16px}
  .learning-course-intro{gap:14px;align-items:flex-start;padding-bottom:22px}
  .learning-course-intro h1{font-size:26px}
  .learning-course-count{min-width:0;padding:12px;gap:4px;max-width:95px;text-align:center}
  .learning-course-count strong{font-size:25px}.learning-course-count span{font-size:10px}
  .learning-section-heading{align-items:stretch;flex-direction:column;gap:12px;margin-top:20px}
  .learning-search{width:100%}
  .student-material-list.learning-material-grid{grid-template-columns:1fr}
  .student-material-list .learning-material-card{padding:16px;gap:12px}
  .learning-material-info>strong{font-size:15px}
  .student-material-main.learning-material-main{padding:12px 12px 28px}
  .learning-document .student-material-paper{padding:20px 16px;border-radius:10px}
  .learning-document-header{padding-bottom:16px;margin-bottom:16px}
  .learning-document-header h1{font-size:26px}
  .learning-breadcrumb{margin-bottom:12px}
  .learning-save-note{max-width:122px}
  .learning-progress{display:grid;grid-template-columns:1fr;gap:5px}
  .learning-progress progress{width:100%}
  .student-content .student-question{padding:13px}
  .student-content .student-question h3{font-size:15px}
  .student-content .student-answer{font-size:16px}
  .student-content .student-option{font-size:14px;min-height:44px}
  .exercise-heading{padding:9px 12px;font-size:11px}
  .student-content .activity-actions .button{min-height:40px}
  .matching-board{column-gap:16%;padding:4px}
  .matching-board .matching-card{padding:9px 7px;font-size:12px;min-height:48px}
  .matching-column{gap:12px}.matching-grip{display:none}
  .matching-meta{font-size:10px}
  .learning-material-pagination .button{padding:10px;font-size:10px}
  .learning-material-pagination .button span{font-size:12px}
  .peaklearn-global-nav{width:52px;padding:8px 5px}
  .peaklearn-course-page,.peaklearn-editor-page{margin-left:52px}
  .peaklearn-course-inner,.peaklearn-editor-inner{padding:14px 10px;width:100%}
  .peaklearn-editor-heading h1,.peaklearn-course-title-row h1{font-size:23px}
  .peaklearn-editor-header{gap:10px;margin-bottom:14px}
  .peaklearn-editor-actions{padding-right:0}
  .peaklearn-editor-actions .save-status{font-size:9px}
  .peaklearn-editor-page .editor-view-toolbar{display:flex;flex-wrap:wrap;padding:6px;gap:5px;top:5px;margin-bottom:12px}
  .peaklearn-editor-page .editor-context{display:none}
  .peaklearn-editor-page .view-switch{min-width:0;flex:1}
  .peaklearn-editor-page .view-switch button{font-size:10px;padding:6px 7px;min-height:34px}
  .teacher-learning-overview{padding:17px 13px;border-radius:10px}.teacher-learning-header{display:block;padding-bottom:15px}.teacher-learning-header h2{font-size:21px}.teacher-learning-stats{justify-content:flex-start;margin-top:14px}.teacher-learning-stats span{min-width:70px}.teacher-learning-row{grid-template-columns:1fr;padding:12px 4px;gap:8px}.teacher-progress{width:100%}.teacher-material-count,.teacher-learning-row time{padding-left:39px}
  .peaklearn-editor-page .json-file-actions .button{padding:7px;font-size:10px}
  .peaklearn-editor-page .json-file-actions .icon{display:none}
  .peaklearn-editor-page .paper{padding:20px 10px}
  .peaklearn-editor-page .document-heading textarea{font-size:25px}
  .peaklearn-editor-page .block{padding:7px 4px}
  .peaklearn-editor-page .block-input{font-size:15px}
  .peaklearn-editor-page .text-format-toolbar{max-width:calc(100vw - 96px)}
  .peaklearn-editor-page .question-block,.peaklearn-editor-page .matching-editor,.peaklearn-editor-page .calculation-editor{padding:10px}
  .peaklearn-editor-page .matching-edit-row{gap:4px;grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr) 26px}
  .peaklearn-editor-shell~.version-floating{top:auto;bottom:14px;right:14px}
  .is-preview-workspace .peaklearn-editor-page{margin-left:0}
  .is-preview-workspace .editor-view-toolbar{justify-content:center;top:0;border-radius:0;margin:0;min-height:52px}
  .is-preview-workspace .view-switch{flex:0 1 auto}
  .is-preview-workspace .inline-preview-pane{padding:16px 12px 32px}
  .is-preview-workspace .inline-preview-paper{padding:12px 4px}
  .is-preview-workspace .inline-preview-title h1{font-size:26px}
  .join-card{padding:22px;max-width:100%}
  dialog:not(.presentation-dialog){max-width:calc(100vw - 20px)}
}
@media print{
  .learning-app .app-header,.learning-sidebar,.learning-breadcrumb,.learning-material-pagination,.learning-back-to-course{display:none!important}
  .learning-layout{display:block}.student-material-main.learning-material-main{max-width:none;padding:0}
  .learning-document .student-material-paper{border:0;box-shadow:none;padding:0}
  .exercise-status,.matching-meta{display:none}.student-content .student-block.is-exercise{break-inside:avoid}
}


/* Student course switcher */
.student-course-home{max-width:920px}
.student-home-intro{padding:8px 0 24px;border-bottom:1px solid var(--ui-line)}
.student-home-intro .eyebrow{margin:0 0 8px}.student-home-intro h1{margin:0;font-size:clamp(28px,4vw,38px);letter-spacing:-1px}.student-home-intro p:not(.eyebrow){margin:8px 0 0;color:var(--ui-muted)}
.student-course-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;padding-top:20px}
.student-course-card{display:grid;gap:7px;min-height:158px;padding:19px;text-align:left;color:var(--ui-ink);background:#fff;border:1px solid var(--ui-line);border-radius:11px;box-shadow:0 3px 12px #25253505;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.student-course-card:hover,.student-course-card:focus-visible{transform:translateY(-2px);border-color:#a68bcc;box-shadow:0 8px 20px #4e347012;outline:none}.student-course-card small{color:var(--ui-accent);font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:.5px}.student-course-card strong{font-size:18px;line-height:1.3}.student-course-card span{color:var(--ui-muted);font-size:13px}.student-course-card b{align-self:end;margin-top:auto;font-size:13px;color:var(--ui-accent)}
@media(max-width:600px){.student-course-home{padding-top:22px}.student-course-list{grid-template-columns:1fr;padding-top:16px}.student-course-card{min-height:134px;padding:16px}}


/* Personal student course overview */
.student-course-home{max-width:980px}.student-course-home .student-home-intro{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:6px 0 26px}.student-home-link{display:grid;gap:5px;min-width:260px;padding:15px 16px;border:1px solid #ddd4ef;border-radius:10px;background:#fbf9ff}.student-home-link>span{font-size:10px;font-weight:800;letter-spacing:.55px;color:var(--ui-accent)}.student-home-link strong{font-size:14px}.student-home-link p{margin:0!important;font-size:12px!important}.student-home-link .button{justify-self:start;margin-top:5px;min-height:34px;font-size:12px}
.student-course-list{display:grid;gap:18px;padding-top:22px}.student-course-section{overflow:hidden;border:1px solid var(--ui-line);border-radius:12px;background:#fff;box-shadow:0 3px 14px #25253505}.student-course-section>header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 19px 14px;border-bottom:1px solid var(--ui-line);background:#fdfcff}.student-course-section>header p{margin:0;color:var(--ui-muted);font-size:12px;white-space:nowrap}.student-course-section-title{display:flex;justify-content:space-between;align-items:center;gap:18px;min-width:0;padding:0;border:0;background:transparent;text-align:left;color:var(--ui-ink);cursor:pointer}.student-course-section-title span{display:grid;gap:3px;min-width:0}.student-course-section-title small,.student-home-material-row small{font-size:10px;font-weight:800;letter-spacing:.45px;color:var(--ui-accent);text-transform:uppercase}.student-course-section-title strong{font-size:18px;line-height:1.25}.student-course-section-title b{font-size:12px;color:var(--ui-accent);white-space:nowrap}.student-course-section-title:hover strong{text-decoration:underline;text-underline-offset:3px}.student-home-material-list{display:grid}.student-home-material-row{display:grid;grid-template-columns:32px minmax(0,1fr) minmax(155px,auto) 16px;align-items:center;gap:12px;width:100%;padding:13px 19px;border:0;border-bottom:1px solid var(--ui-line);background:#fff;color:var(--ui-ink);text-align:left;cursor:pointer}.student-home-material-row:last-child{border-bottom:0}.student-home-material-row:hover,.student-home-material-row:focus-visible{background:#fbfaff;outline:none}.student-home-material-index{display:grid;place-items:center;width:27px;height:27px;border-radius:7px;background:var(--ui-soft);color:var(--ui-accent);font-size:10px;font-weight:800}.student-home-material-row>span:nth-child(2){display:grid;gap:3px;min-width:0}.student-home-material-row strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.student-home-material-status{display:grid;gap:3px;justify-items:end;text-align:right}.student-home-material-status .exercise-status{font-size:10px;font-style:normal}.student-home-material-status em{color:var(--ui-muted);font-size:11px;font-style:normal;white-space:nowrap}.student-home-material-row>b{color:var(--ui-muted);font-size:16px}
@media(max-width:700px){.student-course-home .student-home-intro{display:grid;gap:16px}.student-home-link{min-width:0;width:100%}.student-course-section>header{display:grid;gap:10px;padding:15px}.student-course-section>header p{white-space:normal}.student-home-material-row{grid-template-columns:28px minmax(0,1fr) 14px;gap:9px;padding:12px 14px}.student-home-material-status{grid-column:2;justify-items:start;text-align:left}.student-home-material-row>b{grid-column:3;grid-row:1}.student-home-material-row strong{font-size:13px}.student-course-section-title strong{font-size:16px}}

/* Readable data and richer inline text. */
.formatted-text code{font-family:ui-monospace,Consolas,monospace;font-size:.92em;background:#efedf6;border-radius:4px;padding:1px 4px;color:#513e7e}
.text-format-toolbar{max-width:100%;flex-wrap:wrap}
.student-data,.data-editor{border:1px solid var(--ui-line);border-radius:10px;background:#fafaff;overflow:hidden;min-width:0}
.student-data>header,.data-editor-top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--ui-line);background:#f1eff8}
.student-data>header>div{display:flex;align-items:center;gap:10px;min-width:0}
.student-data>header span{font:700 10px/1.3 ui-monospace,monospace;color:var(--ui-accent)}
.student-data>header strong{font-size:13px;overflow-wrap:anywhere}
.student-data>header .button{font-size:11px;flex-shrink:0;min-height:32px}
.student-data pre{margin:0;padding:16px;max-height:420px;overflow:auto;white-space:pre;tab-size:4;font:13px/1.65 ui-monospace,Consolas,monospace}
.student-data code{font:inherit}
.data-copy-status:not(:empty){display:block;padding:0 14px 10px;font-size:12px;color:var(--ui-accent)}
.data-editor-top strong{font-size:12px}.data-editor-top label{display:flex;align-items:center;gap:7px;font-size:12px}
.data-editor>input{width:calc(100% - 24px);margin:12px;border:1px solid var(--ui-line);padding:8px 10px;border-radius:6px;background:#fff;font-size:13px}
.data-editor .data-input{width:100%;max-height:420px!important;min-height:150px;overflow:auto;border:0;border-block:1px solid var(--ui-line);padding:14px;border-radius:0;font:13px/1.65 ui-monospace,Consolas,monospace;white-space:pre;tab-size:4;resize:vertical;background:#fff}
.data-editor>p{margin:10px 12px;color:var(--ui-muted);font-size:11px;line-height:1.5}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}

/* Progress matrix: folder > material > individual exercises. */
.learning-matrix-view{max-width:none;min-width:0;padding:24px}
.matrix-toolbar{display:flex;gap:20px;justify-content:space-between;align-items:center;margin:20px 0 16px;flex-wrap:wrap}
.progress-legend{display:flex;flex-wrap:wrap;gap:12px;font-size:11px;color:var(--ui-muted)}
.progress-legend span{display:flex;align-items:center;gap:5px}
.progress-legend [data-status]::before{content:'';width:12px;height:6px;border-radius:6px;background:#e9e9f0}
.progress-legend [data-status=done]::before,.progress-segment[data-status=done]{background:#27b88a}
.progress-legend [data-status=started]::before,.progress-segment[data-status=started]{background:#a78bda}
.progress-legend [data-status=retry]::before,.progress-segment[data-status=retry]{background:#e69086}
.learning-matrix-scroll{max-width:100%;overflow:auto;max-height:65vh;border:1px solid var(--ui-line);border-radius:10px;scrollbar-width:thin}
.learning-matrix{border-collapse:separate;border-spacing:0;table-layout:fixed;width:max-content;min-width:100%;font-size:12px}
.learning-matrix th,.learning-matrix td{padding:0;border-right:1px solid var(--ui-line);border-bottom:1px solid #eeeef4;width:174px;min-width:174px;max-width:174px;text-align:left;vertical-align:middle}
.learning-matrix thead{position:sticky;top:0;z-index:3}
.learning-matrix thead th{background:#f6f7fb;color:#434559;font-weight:650}
.learning-matrix thead tr:first-child th{padding:11px 14px;height:38px}
.learning-matrix thead button{width:100%;border:0;background:none;padding:12px 14px;color:var(--ui-ink);text-align:left;line-height:1.5;font-size:12px;min-height:66px;cursor:pointer;overflow-wrap:anywhere}
.learning-matrix thead button:hover{color:var(--ui-accent);background:var(--ui-soft)}
.learning-matrix th:first-child[rowspan],.learning-matrix tbody th{position:sticky;left:0;z-index:2;width:200px;min-width:200px;max-width:200px;box-shadow:1px 0 0 var(--ui-line)}
.learning-matrix .teacher-learning-row{display:table-row;min-height:0;padding:0;border:0;font-size:12px}
.learning-matrix tbody th{padding:13px 14px;background:#fff;font-weight:500}
.learning-matrix tbody th strong{display:block;margin-bottom:5px;font-size:13px;overflow-wrap:anywhere}
.learning-matrix tbody th small,.learning-matrix tbody th time{display:block;padding:0;margin:2px 0;font-size:10px;color:var(--ui-muted);white-space:normal}
.learning-matrix tbody th time::before{content:none}
.learning-matrix td{background:#fff}.learning-matrix tbody tr:hover td,.learning-matrix tbody tr:hover th{background:#fcfbff}
.learning-matrix .matrix-hidden{background:#f8f8fb;color:#b2b1bf;text-align:center}
.matrix-cell{display:grid;align-content:center;gap:8px;width:100%;min-height:88px;padding:15px 12px;border:0;background:none;text-align:left;cursor:pointer}
.matrix-cell:hover{background:var(--ui-soft)}
.matrix-cell small,.matrix-reading{font-size:10px;color:var(--ui-muted)}
.progress-segments{display:flex;gap:3px;flex-wrap:wrap;min-height:7px}
.progress-segment{height:7px;flex:1;min-width:4px;max-width:32px;border-radius:4px;background:#ececf2}
.matrix-help{margin:12px 0 0;color:var(--ui-muted);font-size:11px}
.learning-task-details{list-style:none;padding:0;margin:18px 0;display:grid;gap:0}
.learning-task-details li{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-bottom:1px solid var(--ui-line)}
.detail-task-number{display:grid;place-items:center;width:26px;height:26px;flex-shrink:0;border-radius:50%;background:var(--ui-soft);color:var(--ui-accent);font-size:12px}
.learning-task-details li>div{flex:1;min-width:0}.learning-task-details strong{font-size:13px;overflow-wrap:anywhere}.learning-task-details p{font-size:12px;white-space:pre-wrap;color:var(--ui-muted);overflow-wrap:anywhere}

/* Learners: one list, visible home navigation, a lightweight personal link. */
.student-home-nav{font-size:12px;color:var(--ui-accent);text-decoration:none;white-space:nowrap;padding:8px;border-radius:7px;margin-left:auto}
.student-home-nav:hover{background:var(--ui-soft)}
.student-home-nav+.learning-user{margin-left:0}
.student-home-tools{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:24px}
.student-home-tools h2{font-size:18px;margin:0}.student-home-tools h2 span{margin-left:6px;padding:3px 7px;border-radius:6px;background:var(--ui-soft);font-size:12px;color:var(--ui-accent)}
.student-course-home .student-course-list{grid-template-columns:minmax(0,1fr);gap:20px;padding-top:14px}
.student-course-home .student-home-link{min-width:0;gap:8px;background:#fff;border-color:var(--ui-line)}
.student-home-link small{font-size:11px;color:var(--ui-muted)}
.student-course-section-title{flex:1}.student-course-section-title>span{min-width:0}
.student-course-section-title strong{overflow-wrap:anywhere}
.student-home-material-row strong{white-space:normal;overflow-wrap:anywhere}
.student-home-material-status{min-width:0}
.student-home-material-row:focus-visible,.student-course-section-title:focus-visible{outline:2px solid var(--ui-accent);outline-offset:-3px}
.learning-course-materials .learning-material-grid{grid-template-columns:minmax(0,1fr);gap:8px}
.learning-course-materials .learning-material-card{padding:15px 18px;align-items:center}
.learning-course-materials .learning-material-info{grid-template-columns:minmax(0,1fr) auto;gap:4px 20px}
.learning-course-materials .learning-material-info>small{grid-column:1}
.learning-course-materials .learning-material-info>strong{grid-column:1;font-size:15px}
.learning-course-materials .learning-material-meta{grid-column:2;grid-row:1/3;align-self:center;margin:0}
.learning-progress [data-next-task]{font-size:11px;padding:8px;white-space:normal}

/* Preview follows the same reading layout and navigation as the learner. */
.is-preview-workspace .inline-preview-pane{background:var(--ui-bg)}
.is-preview-workspace .inline-preview-toolbar{max-width:1160px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--ui-muted);font-size:12px;margin:0 auto 20px}
.is-preview-workspace .inline-preview-toolbar strong{color:var(--ui-ink)}
.is-preview-workspace .preview-learning-layout{max-width:1160px;margin:auto;grid-template-columns:210px minmax(0,1fr)}
.is-preview-workspace .inline-preview-paper{width:100%;max-width:none;margin:0;padding:28px 32px;border:1px solid var(--ui-line);border-radius:12px;box-shadow:0 3px 16px #25253503}
.is-preview-workspace .learning-sidebar{top:80px}
.is-preview-workspace .inline-preview-paper .student-heading{margin:18px 0 8px;font-size:25px;line-height:1.35}
.is-preview-workspace .inline-preview-paper h3.student-heading{font-size:21px}
.is-preview-workspace .inline-preview-paper h4.student-heading{font-size:18px}
.is-preview-workspace .inline-preview-paper .document-text{margin:0;font-size:15px;line-height:1.65}
.student-content .student-heading{scroll-margin-top:90px}
.formatted-text p{margin:0 0 .55em}.formatted-text p:last-child{margin-bottom:0}

/* Presentation keeps revealed content and adds a clear lesson roadmap. */
.presentation-outline small{display:block;padding:12px 7px 4px;font-size:10px;line-height:1.6;color:var(--ui-muted)}
.presentation-outline-item:disabled{color:#9694a5;opacity:.6;cursor:default;background:transparent}
.presentation-outline-item>span:last-child{color:inherit;flex:1;overflow-wrap:anywhere}
.presentation-page .presentation-stage{background:var(--ui-bg);padding-top:24px;padding-bottom:40px}
.presentation-page .presentation-step{max-width:980px;padding:10px 28px;background:#fff;border-inline:1px solid var(--ui-line)}
.presentation-page .presentation-step:first-child{padding-top:26px;border-top:1px solid var(--ui-line);border-radius:12px 12px 0 0}
.presentation-page .presentation-step:last-child{padding-bottom:26px;border-bottom:1px solid var(--ui-line);border-radius:0 0 12px 12px}
.presentation-page .presentation-step:only-child{border-radius:12px}
.presentation-page .presentation-step .student-heading{margin:8px 0 6px}
.presentation-page .presentation-step .document-text{font-size:18px;line-height:1.75}
.presentation-page .presentation-step .student-heading{font-size:30px}
.presentation-page .presentation-step .student-data pre{font-size:16px}
.presentation-page .presentation-step.is-current{box-shadow:inset 3px 0 0 #b5a0e5}
.presentation-guide{display:grid;gap:4px;min-width:0;width:min(500px,55%);font-size:12px}
.presentation-guide strong{font-size:12px;color:var(--ui-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.presentation-guide>span{font-size:11px;color:var(--ui-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.presentation-guide progress{width:100%;height:5px;accent-color:var(--ui-accent);border:0;border-radius:5px;overflow:hidden}
.presentation-guide progress::-webkit-progress-bar{background:var(--ui-soft)}
.presentation-guide progress::-webkit-progress-value{background:var(--ui-accent)}

@media(max-width:900px){
 .learning-matrix-view{padding:20px}
 .learning-matrix th:first-child[rowspan],.learning-matrix tbody th{width:150px;min-width:150px;max-width:150px}
 .is-preview-workspace .preview-learning-layout{grid-template-columns:170px minmax(0,1fr)}
}
@media(max-width:800px){
 .is-preview-workspace .preview-learning-layout{display:block}
 .is-preview-workspace .learning-sidebar{position:static}
}
@media(max-width:600px){
 .learning-matrix-view{padding:16px 10px}.matrix-toolbar{gap:12px;margin:14px 0}.progress-legend{font-size:10px;gap:9px}
 .learning-matrix th:first-child[rowspan],.learning-matrix tbody th{width:124px;min-width:124px;max-width:124px}.learning-matrix tbody th{padding:12px 8px}.learning-matrix th,.learning-matrix td{width:150px;min-width:150px;max-width:150px}
 .learning-app .app-header{gap:6px}.learning-app .brand{font-size:16px}.learning-app .brand>.icon{width:19px}
 .learning-app .learning-user{max-width:none;flex-shrink:0}.learning-app .learning-user>span{display:none}
 .student-home-nav{font-size:11px;padding:7px 4px}
 .learning-app .back-button{font-size:11px}
 .student-home-tools{flex-direction:column;align-items:stretch;gap:12px;margin-top:20px}
 .student-course-home .student-home-intro{gap:14px;padding-bottom:18px}
 .student-course-home .student-home-link{grid-template-columns:1fr auto;align-items:center;padding:12px}.student-home-link>span{grid-column:1}.student-home-link>.button{grid-column:2;grid-row:1/3;margin:0}.student-home-link small{grid-column:1}
 .student-course-section>header{display:block}.student-course-section>header>p{margin-top:8px}.student-course-section-title{width:100%;gap:10px}
 .learning-course-materials .learning-material-info{display:grid;grid-template-columns:1fr}.learning-course-materials .learning-material-meta{grid-column:1;grid-row:auto;gap:7px}.learning-course-materials .learning-material-card{padding:14px 12px;gap:10px}
 .is-preview-workspace .inline-preview-pane{padding:14px 12px 28px}.is-preview-workspace .inline-preview-paper{padding:22px 16px}.is-preview-workspace .inline-preview-toolbar{margin-bottom:14px}.is-preview-workspace .inline-preview-toolbar>span{display:none}
 .student-data>header{padding:8px;gap:6px}.student-data>header>div{display:grid;gap:4px}.student-data pre{padding:12px;font-size:12px}
 .presentation-page .presentation-stage{padding:14px 12px 24px}
 .presentation-page .presentation-step{padding-inline:16px}
 .presentation-page .presentation-step .document-text{font-size:16px}
 .presentation-page .presentation-step .student-heading{font-size:25px}
 .presentation-page .presentation-step .student-data pre{font-size:13px}
 .presentation-page .presentation-controls{flex-wrap:wrap;gap:8px}
 .presentation-page .presentation-guide{order:-1;width:100%;gap:3px}.presentation-guide>span{font-size:10px}
 .learning-task-details li{flex-wrap:wrap}.learning-task-details .exercise-status{margin-left:38px}
}
@media print{
 .learning-matrix-scroll{overflow:visible;max-height:none}.matrix-toolbar,.matrix-help{display:none}
 .student-data pre{max-height:none;white-space:pre-wrap;overflow-wrap:anywhere}.student-data header button,.data-copy-status{display:none}
}
.student-content>.student-block{margin:0;padding:2px 0}
.student-content .student-heading{margin:3px 0 1px;line-height:1.2}
.student-content .student-heading.h1{margin-top:5px}
.student-content .student-heading.h2,.student-content .student-heading.h3{margin-top:3px}
.is-preview-workspace .inline-preview-paper .student-heading{margin:3px 0 1px}
.presentation-page .presentation-step .student-heading{margin:3px 0 1px}
.peaklearn-editor-page .document-heading{padding-bottom:6px;margin-bottom:3px}
.student-content .student-block{margin:0!important;padding:0!important}
.student-content .student-heading{margin:0!important;padding:0!important}
.student-content .student-heading + .student-block,
.student-content .student-heading + .document-text{margin-top:0!important}
.student-content .document-text p{margin-top:0;margin-bottom:3px}
.student-content .document-text ul,.student-content .document-text ol{margin-top:2px;margin-bottom:3px;padding-left:22px}
.presentation-page .presentation-step>.student-block{margin:0!important;padding:0!important}
.presentation-page .presentation-step .student-heading{margin:0!important;padding:0!important}
.presentation-page .presentation-step .document-text p{margin-top:0;margin-bottom:3px}
.student-content{gap:24px!important}
.student-content .student-heading{line-height:1.2!important}
.student-content .document-text{line-height:1.55!important}
.presentation-page .presentation-step{padding-top:7px!important;padding-bottom:7px!important}
.presentation-page .presentation-step .document-text{line-height:1.55!important}
.student-content .document-text,
.presentation-page .presentation-step .document-text{letter-spacing:.01em;line-height:1.7!important}
.student-content .document-text p{line-height:1.7}
.student-content .document-text,
.presentation-page .presentation-step .document-text{font-size:16px!important}
.learning-sidebar .learning-save-note{display:none}
.learning-layout{display:block!important}
.learning-sidebar{display:none!important}
.learning-document{width:min(100%,980px);margin:0 auto!important}
.learning-document .student-material-paper{width:100%;margin:0 auto}
.student-html-widget-card{display:block;width:100%;padding:14px;text-align:left;border:1px solid #dfe3ea;border-radius:10px;background:#fafbfc;color:#111827}
.student-html-widget-card:hover{border-color:#c4b5fd;background:#faf9ff}
.html-widget-kicker{display:block;margin-bottom:8px;color:#7c3aed;font-size:10px;font-weight:750;letter-spacing:.7px}
.student-html-widget-frame{display:block;width:100%;height:135px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;pointer-events:none}
.html-widget-open{display:block;margin-top:10px;padding:7px 0;border:0;color:#6d28d9;font-size:12px;font-weight:650}
.html-widget-dialog{width:min(1100px,calc(100vw - 32px));height:min(820px,calc(100dvh - 32px));padding:0;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden}
.html-widget-dialog .dialog-content{height:calc(100% - 60px);padding:0;background:#fff}
.html-widget-dialog .file-preview-frame{width:100%;height:100%;border:0}
.student-content.is-focus-mode>.student-block:not(.is-focused){filter:blur(7px);opacity:.28;user-select:none;pointer-events:none;transition:filter .2s ease,opacity .2s ease}
.student-content>.student-block{transition:filter .2s ease,opacity .2s ease}
.student-image-single,.student-image-pair{width:100%;max-width:100%}
.student-image-figure{width:var(--figure-width)!important;max-width:100%!important}
.rendered-formula math{font-size:1.03em!important}
.document-preview .student-formula .rendered-formula math{font-size:1.33em!important}
.presentation-page .student-formula .rendered-formula math{font-size:1.67em!important}
.table-editor-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.table-editor-top small,.table-paste-hint{color:#71717a;font-size:11px}
.table-editor-top small{flex-basis:100%;margin-top:-4px}
.table-edit-grid .table-cell-input{min-height:58px;padding:12px 34px 12px 12px;font-size:14px;line-height:1.5;border:1px solid #e5e7eb;border-radius:5px;background:#fff}
.table-edit-grid .table-cell-input:focus{border-color:#a78bfa;background:#fff;box-shadow:0 0 0 2px #ede9fe}
.table-paste-hint{margin-left:auto}