.student-main-nav{display:flex;gap:24px;border-bottom:1px solid #dedee4;margin:-22px 0 36px}.student-main-nav button{padding:13px 0;color:#6e6e73;font-size:13px;border-bottom:2px solid transparent}.student-main-nav button[aria-current=page]{color:#0071e3;border-color:#0071e3}.personal-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:29px}.personal-heading h1{font-size:34px;font-weight:650;letter-spacing:-.045em;line-height:1.25}.personal-heading p{color:#6e6e73;font-size:13px;margin-top:13px}.personal-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:24px}.personal-tabs button{padding:10px 18px;min-height:44px;border-radius:11px;font-size:13px;color:#6e6e73}.personal-tabs button[aria-current=page]{background:white;box-shadow:0 1px 6px #00000008;color:#1d1d1f;font-weight:550}.personal-filters{display:grid;grid-template-columns:minmax(180px,1.6fr) minmax(100px,.8fr) minmax(150px,1.2fr) minmax(120px,1fr) auto;gap:10px;margin:22px 0}.personal-filters input,.personal-filters select{font-size:12px;min-width:0}.personal-selection{display:flex;gap:18px;align-items:center;justify-content:space-between;padding:12px 0;color:#6e6e73;font-size:12px}.personal-question-row{gap:16px}.personal-question-row>div:nth-child(2){flex:1;min-width:0}.personal-pick{align-self:flex-start;padding:5px 0}.personal-pick input,.personal-check input{appearance:auto;accent-color:#0071e3;width:18px;height:18px;padding:0;flex:0 0 18px;margin:2px 0 0}.personal-check{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:1.9;margin:20px 0;color:#515154}.personal-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.personal-chips>button,.personal-chips>span{display:inline-block;border-radius:7px;padding:5px 9px;background:#f1f6fd;font-size:11px;color:#366899;overflow-wrap:anywhere;max-width:100%}.personal-chips>button{min-height:32px}.personal-editor .student-form-grid{margin-top:23px}.personal-editor [data-n-tags],.personal-ai-results [data-n-tags]{margin:28px 0;padding-top:22px;border-top:1px solid #e5e5ea}.personal-review{border-top:1px solid #e5e5ea;margin-top:27px;padding-top:25px}.personal-review h3{font-size:19px;font-weight:550;letter-spacing:-.025em;margin-bottom:21px}.personal-review>label{display:grid;gap:8px;color:#515154;font-size:12px;margin:18px 0}.personal-review details{padding:16px 18px;background:#f5f5f7;border-radius:12px;margin-top:18px}.personal-review summary,.personal-history summary,.student-correction-source>summary{cursor:pointer;color:#0071e3;font-size:13px;min-height:32px;line-height:2}.personal-review details .student-rich{margin-top:14px}.personal-review-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.personal-history{border-top:1px solid #e5e5ea;padding-top:20px;margin-top:24px}.personal-history p{margin-top:14px;color:#6e6e73;font-size:12px}.personal-metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:24px 0;margin:20px 0 27px;border-top:1px solid #e5e5ea;border-bottom:1px solid #e5e5ea}.personal-metrics>div{padding:0 18px;border-right:1px solid #e5e5ea}.personal-metrics>div:first-child{padding-left:0}.personal-metrics>div:last-child{border:0}.personal-metrics span{display:block;font-size:12px;color:#6e6e73}.personal-metrics b{font-size:34px;font-weight:600;letter-spacing:-.05em;display:block;margin-top:8px;line-height:1.4}.personal-report-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid #eeeef1;font-size:13px}.personal-report-row>span,.personal-report-row p{color:#6e6e73;font-size:12px}.personal-report-row>button:not(.student-button){color:#0071e3;text-align:left;padding:5px 0}.personal-section-title{margin-top:30px}.personal-ai-options{border:0;padding:0;min-width:0;margin:25px 0}.personal-ai-options .student-form-label{margin-top:17px}.personal-ai-options .student-file-button{margin-top:17px}.personal-ai-options .student-form-grid{margin:18px 0}.personal-ai-results{border-top:1px solid #e5e5ea;margin-top:28px;padding-top:28px}.personal-ai-results h3{font-size:19px;font-weight:550;letter-spacing:-.025em}.personal-draft-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;margin-bottom:17px}.personal-draft-tabs button{max-width:230px;flex-shrink:0;padding:10px 14px;border:1px solid #e5e5ea;border-radius:10px;text-align:left;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.personal-draft-tabs button[aria-pressed=true]{border-color:#94bee9;background:#f1f7ff;color:#0071e3}.personal-job-list{margin-top:35px;border-top:1px solid #e5e5ea;padding-top:25px}.personal-job-list>h3{font-size:18px;margin-bottom:9px}.student-correction-source{margin-bottom:25px;padding:15px 18px;background:#fafafb;border:1px solid #e5e5ea;border-radius:14px}.student-correction-source>summary{font-size:13px}.student-correction-source .student-note{margin:14px 0}#student-print-root{display:none}
@media(max-width:900px){.personal-filters{grid-template-columns:1fr 1fr}.personal-filters>input:first-child{grid-column:1/-1}.personal-filters>.student-button{grid-column:1/-1}}
@media(max-width:700px){.student-main-nav{margin:-12px 0 29px;gap:22px}.student-main-nav button{font-size:12px}.personal-heading{align-items:flex-start;flex-direction:column;gap:20px;margin-bottom:20px}.personal-heading h1{font-size:29px}.personal-heading p{font-size:12px}.personal-heading>.student-task-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;min-width:0;flex-shrink:1}.personal-heading>.student-task-actions>button{width:100%;min-width:0;min-height:44px;white-space:normal;padding:10px 12px}.personal-selection{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}.personal-selection>span{white-space:nowrap}.personal-selection>.student-task-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;min-width:0;flex-shrink:1}.personal-selection>.student-task-actions>button{width:100%;min-width:0;min-height:44px;white-space:normal}.personal-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px;margin-bottom:20px}.personal-tabs button{font-size:12px;padding:10px 3px;white-space:nowrap}.personal-question-row{display:grid;grid-template-columns:auto minmax(0,1fr)}.personal-question-row .student-task-actions{grid-column:2}.personal-question-row:not(:has(.personal-pick)){grid-template-columns:minmax(0,1fr)}.personal-question-row:not(:has(.personal-pick)) .student-task-actions{grid-column:1}.personal-selection .student-button{padding:8px 12px;font-size:12px}.personal-metrics{grid-template-columns:1fr 1fr;gap:20px 0;padding:21px 0}.personal-metrics>div{padding:0 18px}.personal-metrics>div:nth-child(odd){padding-left:0}.personal-metrics>div:nth-child(even){border:0}.personal-metrics b{font-size:30px;margin-top:4px}.personal-report-row{align-items:flex-start;gap:10px;flex-wrap:wrap}.personal-report-row>span{flex-basis:100%}.personal-job-list .personal-report-row{flex-wrap:nowrap}.personal-review-actions>.student-button{flex:1;padding:10px 12px;font-size:12px}.personal-ai-results .student-panel-head{align-items:flex-start;flex-direction:column;gap:8px}.personal-ai-results h3{font-size:18px}.personal-filters{gap:9px}.personal-filters>input,.personal-filters>select{font-size:12px;padding:11px}.personal-check{font-size:12px}.student-correction-source{padding:13px}.student-form-grid input,.student-form-grid textarea,.personal-filters input,.personal-ai-options input,.personal-ai-options textarea{font-size:16px}}
@media print{@page{size:A4;margin:16mm}.student-printing>*{display:none!important}.student-printing>#student-print-root{display:block!important}.student-printing{background:white!important;color:black}.paper-sheet{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;color:#1d1d1f;overflow-wrap:anywhere;break-before:page}.paper-sheet:first-child{break-before:auto}.paper-masthead{display:flex;justify-content:space-between;gap:16px;padding-bottom:3mm;border-bottom:1px solid #d2d2d7;font-size:8pt;color:#6e6e73}.paper-sheet h1{font-size:24pt;line-height:1.35;margin:9mm 0 5mm}.paper-student{display:flex;align-items:center;gap:14px;font-size:10pt;color:#6e6e73}.paper-student strong{color:#1d1d1f;font-size:13pt}.paper-student>span:last-child{margin-left:auto}.paper-instructions{font-size:8pt;line-height:1.8;color:#6e6e73;margin:4mm 0 8mm}.paper-question{break-inside:avoid;margin:8mm 0}.paper-question>header{display:flex;gap:4mm;margin-bottom:4mm;align-items:baseline}.paper-question>header>b{font-size:16pt;font-weight:600;color:#86868b}.paper-question h3{font-size:12pt;font-weight:600}.paper-question header span{color:#6e6e73;font-size:8pt}.paper-prompt{font-size:11pt;line-height:1.9}.paper-question img{display:block;max-height:110mm;max-width:100%;object-fit:contain;object-position:left;margin:5mm 0}.paper-writing{height:calc(var(--writing-lines,6) * 7mm);margin:4mm 0 6mm;position:relative}.paper-writing span{position:absolute;top:2px;right:0;font-size:8pt;color:#86868b;background:#fff;padding-left:5px}.paper-footer{border-top:1px solid #d2d2d7;padding-top:3mm;color:#86868b;font-size:8pt;text-align:center}.paper-answer{break-before:page;border:0;margin:0;padding:0}.paper-answer h2{font-size:21pt;margin-top:8mm}.paper-solution{break-inside:avoid;margin:6mm 0;font-size:10pt}.paper-solution h3{font-size:11pt;margin-bottom:3mm}.paper-explanation{margin-top:3mm;color:#333}.paper-sheet .katex-display{overflow:visible}}
.personal-figure-tools{padding:18px;border:1px solid #e5e8ef;border-radius:13px;background:#fafbfd;margin:18px 0}.personal-figure-tools>h3{font-size:14px;font-weight:600;margin-bottom:8px}.personal-figure-tools>.student-muted{font-size:12px;line-height:1.8}.personal-figure-tools>.student-task-actions{margin-top:14px;flex-wrap:wrap}.personal-figure-tools .batch-figure-list .student-button{font-size:11px;min-height:36px;padding:7px 10px}.personal-editor .typeset-preview{margin-top:22px}.personal-ai-results .typeset-preview{margin-top:16px}@media(max-width:700px){.personal-figure-tools{padding:14px}.personal-figure-tools>.student-task-actions{display:grid;grid-template-columns:1fr;width:100%}.personal-figure-tools>.student-task-actions>button{width:100%;min-width:0;white-space:normal;min-height:44px}}

[data-n-review-issues] .batch-text-button{min-height:44px;padding:8px 0}
[data-n-review-issues] .batch-issue-row select{appearance:none;-webkit-appearance:none;min-height:44px;font-size:16px;padding:10px 32px 10px 12px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236e6e73' stroke-width='1.5'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat}
.personal-photo-upload{padding:18px;border:1px dashed #cddbeb;border-radius:14px;background:#f8fbff;margin:20px 0}
.personal-photo-context{margin:22px 0 16px}.personal-photo-context h3{font-size:16px;margin:0 0 14px}.personal-photo-context .student-form-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.personal-photo-context .student-muted{margin:10px 0 0}.personal-photo-context select{width:100%;min-width:0;min-height:44px}
@media(max-width:480px){.personal-photo-context .student-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.personal-photo-context .student-form-grid>label:first-child{grid-column:1/-1}}
.personal-photo-upload .student-muted{margin-top:12px;line-height:1.8}
.personal-editor-ai{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px;border:1px solid #dce9f9;border-radius:14px;background:#f5f9ff;margin:24px 0}
.personal-editor-ai h3{font-size:17px;margin-bottom:8px}.personal-editor-ai p{line-height:1.8}.personal-editor-ai>.student-primary{flex-shrink:0;min-height:44px}
.personal-editor-queue{margin:20px 0}.personal-editor-queue>p{margin-bottom:12px}
@media(max-width:700px){.personal-editor-ai{align-items:stretch;flex-direction:column;padding:16px}.personal-editor-ai>.student-primary{width:100%}.personal-photo-upload{padding:16px}.personal-photo-upload .student-file-button{min-height:44px}.personal-editor .student-panel-head{align-items:flex-start}}

.personal-figure-tools>summary{cursor:pointer;font-size:13px;min-height:28px;color:#4b6e94}.personal-figure-tools[open]>summary{margin-bottom:12px}

.personal-ai-controls{display:grid;gap:10px;min-width:180px;flex-shrink:0}.personal-ai-provider{display:grid;gap:7px;font-size:12px;color:#515154}.personal-ai-provider select{min-height:44px;min-width:0;width:100%}.personal-ai-controls>.student-primary{min-height:44px}.personal-quota{margin-top:10px}.personal-ai-refresh{margin-top:-10px;margin-bottom:18px}.personal-ai-options>.personal-ai-provider{max-width:320px;margin:20px 0}@media(max-width:700px){.personal-ai-controls{min-width:0;width:100%}.personal-ai-controls select{font-size:16px}}

.personal-detail-ai{border-top:1px solid #e5e5ea;margin-top:24px;padding-top:24px;scroll-margin-top:20px}.personal-detail-ai>.student-panel-head h3{font-size:20px}.personal-detail-ai .personal-ai-options>.student-primary{min-height:44px}@media(max-width:700px){.personal-detail-ai>.student-panel-head{align-items:flex-start;gap:12px;flex-direction:column}.personal-detail-ai .personal-ai-options>.student-primary{width:100%}.personal-detail-ai .personal-ai-provider select{font-size:16px}}

/* Keep question search visible; secondary filters and batch actions expand when needed. */
.personal-filters{display:block;margin:18px 0 10px}
.personal-search-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}
.personal-filters input,.personal-filters select{min-height:44px;min-width:0}
.personal-filters select{appearance:none;-webkit-appearance:none;height:44px;padding-right:34px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%23526179' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat}
.personal-filter-details{margin-top:8px}
.personal-filter-details>summary{cursor:pointer;min-height:44px;padding:11px 0;color:#345780;font-size:13px}
.personal-filter-details>summary>span{margin-left:10px;color:#627087;font-size:12px}
.personal-filter-options{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:8px 0 14px}
.personal-filter-options>label{display:grid;gap:6px;min-width:0;color:#526179;font-size:12px}
.personal-filter-options>.personal-filter-tag{grid-column:1/-1}
.personal-filter-options>.student-button{grid-column:1/-1;justify-self:end;min-height:44px}
.personal-selection.is-empty{padding:0 0 10px;font-size:12px;line-height:1.6}
@media(max-width:700px){.personal-filters input,.personal-filters select{font-size:16px}.personal-search-row>.student-button{padding:9px 13px;min-height:44px}.personal-filter-options>.student-button{width:100%;justify-self:stretch}.personal-selection.is-empty{margin-top:0}.personal-selection.is-empty>span{white-space:normal}}
/* Keep the analysis choice and recommendation readable beside the editor copy. */
.personal-editor-ai>div:first-child{min-width:0;flex:1}.personal-editor-ai .personal-ai-controls{min-width:0;width:320px;max-width:100%;flex:0 1 320px}.personal-ai-options>[data-n-analysis-tier-controls]{margin:16px 0}.personal-ai-controls [data-n-analysis-tier-controls]{min-width:0}
@media(max-width:700px){.personal-editor-ai .personal-ai-controls{width:100%;flex:auto}}
.personal-ai-provider select{appearance:none;-webkit-appearance:none;padding-right:34px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23566782' stroke-width='1.5'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat}

/* Teacher archives remain separate from the current shared answer. */
.personal-teacher-archives{margin:24px 0;border:1px solid var(--line,#d9dfeb);border-radius:14px;padding:16px;min-width:0}.personal-teacher-archives>summary,.personal-teacher-archive>summary{min-height:44px;cursor:pointer;line-height:1.6}.personal-teacher-archive{border-top:1px solid var(--line,#d9dfeb);padding:12px 0}.personal-teacher-archive>summary{display:flex;gap:12px;justify-content:space-between;align-items:start}.personal-teacher-archive small{display:block;font-size:12px;color:var(--muted,#66748b)}.personal-teacher-archive strong{font-size:12px;white-space:nowrap}.personal-teacher-archive h4{margin:20px 0 8px}.personal-teacher-archive .student-rich{overflow-wrap:anywhere;min-width:0}[data-n-conflict] .student-button{margin:6px 8px 6px 0}[data-n-conflict] details{margin:12px 0}[data-n-conflict] img{max-width:100%;max-height:240px;object-fit:contain}

/* A quiet reading surface for collecting questions and understanding them. */
@media screen {
  .student-study-page { --blue:#3157d5; --muted:#65748a; --line:#dfe5ef; background:#f4f7fb; color:#1d2b42; }
  .student-study-shell.student-shell { max-width:1080px; padding:0 32px 40px; }
  .student-study-shell .student-header { height:72px; margin-bottom:20px; border-color:#dfe5ef; }
  .student-study-shell .student-brand { font-size:25px; font-weight:700; letter-spacing:-.035em; color:#1d2b42; }
  .student-study-shell .student-brand svg { width:26px; height:26px; color:#3157d5; }
  .student-study-shell .student-main-nav { margin:0 0 28px; gap:26px; border-color:#dfe5ef; }
  .student-study-shell .student-main-nav button { min-height:44px; padding:10px 0; font-size:13px; color:#65748a; }
  .student-study-shell .student-main-nav button[aria-current=page] { color:#3157d5; border-color:#3157d5; font-weight:600; }
  .personal-workspace { --blue:#3157d5; --muted:#65748a; --line:#dfe5ef; color:#1d2b42; }
  .personal-workspace .personal-heading { margin:0 0 22px; gap:20px; align-items:center; }
  .personal-workspace .personal-heading h1 { font-size:30px; line-height:1.3; font-weight:650; letter-spacing:-.035em; }
  .personal-workspace .personal-heading p { margin-top:8px; font-size:13px; color:#65748a; }
  .personal-workspace .personal-heading>.student-task-actions { width:auto; display:flex; flex-shrink:0; }
  .personal-workspace .student-primary,.personal-workspace .student-button { min-height:44px; border-radius:10px; padding:10px 16px; font-size:13px; }
  .personal-workspace .student-primary { background:#3157d5; border-color:#3157d5; font-weight:600; color:#fff; }
  .personal-workspace .student-primary:hover { background:#2749bd; border-color:#2749bd; }
  .personal-workspace .student-button { background:#fff; border-color:#dfe5ef; color:#34465f; }
  .personal-workspace .student-button:hover:not(:disabled) { background:#f4f7fb; border-color:#c6d2e5; }
  .personal-workspace .personal-tabs { position:relative; display:flex; align-items:flex-start; flex-wrap:wrap; gap:8px; background:none; border-radius:0; padding:0; margin:0 0 20px; border-bottom:1px solid #dfe5ef; }
  .personal-workspace .personal-tabs>button,.personal-workspace .personal-more-tools>summary { padding:10px 12px; min-height:44px; font-size:13px; border-radius:8px 8px 0 0; color:#65748a; }
  .personal-workspace .personal-tabs>button[aria-current=page] { color:#3157d5; background:transparent; box-shadow:inset 0 -2px #3157d5; font-weight:600; }
  .personal-workspace .personal-more-tools { margin-left:auto; position:relative; }
  .personal-workspace .personal-more-tools>summary { cursor:pointer; list-style:none; display:flex; align-items:center; gap:8px; }
  .personal-workspace .personal-more-tools>summary::-webkit-details-marker { display:none; }
  .personal-workspace .personal-more-tools>summary::after { content:''; width:6px; height:6px; border-right:1.5px solid currentColor; border-bottom:1.5px solid currentColor; transform:rotate(45deg); margin-top:-3px; }
  .personal-workspace .personal-more-tools[open]>summary::after { transform:rotate(225deg); margin-top:3px; }
  .personal-workspace .personal-more-tools>div { position:absolute; right:0; top:48px; min-width:156px; z-index:5; display:grid; padding:6px; background:#fff; border:1px solid #dfe5ef; border-radius:12px; box-shadow:0 8px 24px #1d2b4212; }
  .personal-workspace .personal-more-tools>div>button { text-align:left; min-height:44px; padding:10px 12px; color:#34465f; }
  .personal-workspace .personal-more-tools>div>button[aria-current=page] { background:#edf2ff; color:#3157d5; }
  .personal-workspace .student-panel { padding:26px; border:1px solid #dfe5ef; border-radius:16px; box-shadow:none; }
  .personal-workspace .student-panel-head { align-items:center; gap:16px; margin-bottom:18px; }
  .personal-workspace .student-panel-head h2 { font-size:20px; line-height:1.4; letter-spacing:-.02em; color:#1d2b42; }
  .personal-workspace .student-panel-head p { margin-top:5px; }
  .personal-workspace .student-muted { color:#65748a; line-height:1.75; }
  .personal-workspace .personal-library>.student-panel-head { margin-bottom:12px; }
  .personal-workspace .personal-library>.student-panel-head h2 { font-size:14px; font-weight:600; color:#52647e; }
  .personal-workspace .personal-library>.student-panel-head>.student-button { border-color:transparent; background:transparent; padding:8px 0 8px 12px; color:#65748a; }
  .personal-workspace .personal-filters { margin:0 0 10px; }
  .personal-workspace .personal-search-row { gap:8px; }
  .personal-workspace .personal-search-row>input { background:#f7f9fc; border-color:#dfe5ef; border-radius:10px; font-size:14px; padding:12px 14px; }
  .personal-workspace .personal-filter-details { margin-top:2px; }
  .personal-workspace .personal-filter-details>summary { min-height:44px; padding:10px 0; color:#4d607c; font-size:13px; }
  .personal-workspace .personal-filter-details>summary>span { color:#65748a; }
  .personal-workspace .personal-selection.is-empty { padding:0 0 12px; color:#65748a; font-size:12px; }
  .personal-workspace .personal-question-row { align-items:start; padding:22px 0; gap:14px; }
  .personal-workspace .personal-question-row:first-child { padding-top:18px; border-top:1px solid #dfe5ef; }
  .personal-workspace .personal-question-row h3 { font-size:17px; line-height:1.55; font-weight:600; color:#1d2b42; letter-spacing:-.01em; }
  .personal-workspace .personal-question-row p { margin-top:6px; font-size:12px; color:#65748a; }
  .personal-workspace .personal-question-row>.student-task-actions { padding-top:2px; }
  .personal-workspace .personal-question-row>.student-task-actions>.student-button { color:#3157d5; background:#f1f5ff; border-color:transparent; }
  .personal-workspace .personal-pick { min-width:30px; min-height:44px; padding:4px 5px 0 0; }
  .personal-workspace .personal-pick input { accent-color:#3157d5; }
  .personal-workspace .personal-chips { margin-top:10px; gap:6px; }
  .personal-workspace .personal-chips:empty { display:none; }
  .personal-workspace .personal-chips>button,.personal-workspace .personal-chips>span { background:#f0f4fa; color:#586d8b; border-radius:6px; font-size:11px; padding:5px 8px; }
  .personal-workspace .personal-chips>button { min-height:36px; }
  .personal-workspace .student-pagination { margin-top:20px; padding-top:18px; border-color:#dfe5ef; }
  .personal-workspace .personal-library-help { border-top:1px solid #edf0f5; margin-top:20px; padding-top:6px; }
  .personal-workspace .personal-library-help>summary,.personal-workspace .personal-sync-note>summary,.personal-workspace .personal-upload-help>summary { cursor:pointer; min-height:44px; padding:11px 0; color:#65748a; font-size:12px; }
  .personal-workspace .personal-library-help>p,.personal-workspace .personal-sync-note>p { padding:0 0 10px; max-width:70ch; }
  .personal-workspace[data-notebook-view=detail]>.personal-heading,.personal-workspace[data-notebook-view=editor]>.personal-heading { display:none; }
  .personal-workspace[data-notebook-view=detail]>.student-button,.personal-workspace[data-notebook-view=editor]>.student-button { background:none; border-color:transparent; color:#65748a; padding-left:0; margin:0 0 12px; }
  .personal-workspace .personal-question-detail>.student-panel-head { align-items:start; }
  .personal-workspace .personal-question-detail>.student-panel-head>div:first-child { flex:1; min-width:0; }
  .personal-workspace .personal-question-detail>.student-panel-head h2 { font-size:25px; line-height:1.45; }
  .personal-workspace .personal-detail-tools { width:auto; gap:8px; }
  .personal-workspace .personal-detail-tools>.student-button { background:none; border-color:transparent; color:#65748a; padding:8px 10px; }
  .personal-workspace .personal-explain-entry { display:flex; align-items:center; justify-content:space-between; gap:18px; background:#f1f5ff; border-radius:12px; padding:18px 20px; margin:0 0 22px; }
  .personal-workspace .personal-explain-entry strong { display:block; font-size:15px; font-weight:600; color:#253f75; }
  .personal-workspace .personal-explain-entry p { font-size:12px; line-height:1.7; color:#607394; margin-top:5px; }
  .personal-workspace .personal-explain-entry>.student-primary { flex-shrink:0; }
  .personal-workspace .personal-sync-note { margin:-8px 0 14px; }
  .personal-workspace .personal-original-question { padding:2px 0 8px; }
  .personal-workspace .personal-original-question>.student-muted { margin-bottom:12px; }
  .personal-workspace .student-rich { font-size:16px; line-height:1.95; color:#1d2b42; }
  .personal-workspace .personal-review { margin-top:20px; padding-top:20px; border-color:#dfe5ef; }
  .personal-workspace .personal-review h3 { font-size:17px; font-weight:600; margin-bottom:12px; }
  .personal-workspace .personal-review details { background:#f7f9fc; border:1px solid #e8edf5; padding:12px 16px; border-radius:10px; margin-top:12px; }
  .personal-workspace .personal-review details>summary { min-height:44px; display:flex; align-items:center; font-size:14px; color:#3157d5; }
  .personal-workspace .personal-review details[open]>summary { margin-bottom:10px; }
  .personal-workspace .personal-review h4 { font-size:14px; font-weight:600; margin:20px 0 8px; }
  .personal-workspace .personal-study-records,.personal-workspace .personal-question-tools { margin-top:20px; border-top:1px solid #dfe5ef; padding-top:8px; }
  .personal-workspace .personal-study-records>summary,.personal-workspace .personal-question-tools>summary { cursor:pointer; min-height:44px; padding:10px 0; font-size:13px; color:#52647e; }
  .personal-workspace .personal-study-records>summary>small { font-size:11px; color:#7b879a; margin-left:8px; }
  .personal-workspace .personal-record-fields { padding:6px 0 2px; }
  .personal-workspace .personal-record-fields>label { display:grid; gap:8px; font-size:12px; color:#52647e; margin:16px 0; }
  .personal-workspace .personal-record-fields textarea { min-height:100px; background:#fafbfd; }
  .personal-workspace .personal-question-tools>.student-submit-bar { border:0; padding:8px 0 4px; margin:0; justify-content:flex-start; flex-wrap:wrap; gap:8px; }
  .personal-workspace .personal-question-tools [data-n-action=delete] { color:#a2454d; }
  .personal-workspace .personal-history { margin-top:16px; }
  .personal-workspace .personal-editor>.student-panel-head { align-items:start; }
  .personal-workspace .personal-photo-context { margin:20px 0 16px; }
  .personal-workspace .personal-photo-context h3 { font-size:15px; font-weight:600; margin-bottom:12px; }
  .personal-workspace .personal-photo-upload { background:#f6f9ff; border:1px dashed #c5d3e9; border-radius:12px; padding:20px; }
  .personal-workspace .personal-photo-upload .student-file-button { border-radius:10px; border-color:#3157d5; background:white; color:#3157d5; font-size:14px; min-height:46px; padding:10px 18px; font-weight:600; }
  .personal-workspace .personal-photo-upload>.student-muted { margin-top:10px; }
  .personal-workspace .personal-upload-help>summary { padding:9px 0; }
  .personal-workspace .personal-upload-help>p { margin:0 0 10px; }
  .personal-workspace .personal-photo-upload .personal-quota { padding-top:10px; border-top:1px solid #e1e8f5; font-size:11px; }
  .personal-workspace .personal-editor input,.personal-workspace .personal-editor select,.personal-workspace .personal-editor textarea { border-color:#dfe5ef; border-radius:9px; }
  .personal-workspace .personal-editor-ai { background:#f7f9fd; border-color:#dfe5ef; border-radius:12px; }
  .personal-workspace .personal-save-bar { align-items:center; }
  .student-study-shell .student-footer { color:#7b879a; margin-top:24px; }
}
@media screen and (max-width:700px) {
  .student-study-shell.student-shell { padding:0 16px 28px; }
  .student-study-shell .student-header { height:64px; margin-bottom:10px; }
  .student-study-shell .student-brand { font-size:23px; }
  .student-study-shell .student-brand small { display:none; }
  .student-study-shell .student-main-nav { margin-bottom:22px; gap:24px; }
  .personal-workspace .personal-heading { flex-direction:row; align-items:center; gap:12px; margin-bottom:18px; }
  .personal-workspace .personal-heading h1 { font-size:25px; }
  .personal-workspace .personal-heading p { font-size:12px; line-height:1.7; max-width:22ch; margin-top:6px; }
  .personal-workspace .personal-heading>.student-task-actions { display:flex; width:auto; min-width:auto; flex:0 0 auto; }
  .personal-workspace .personal-heading>.student-task-actions>.student-primary { padding:10px 12px; min-height:44px; font-size:12px; white-space:nowrap; }
  .personal-workspace .personal-tabs { display:flex; flex-wrap:nowrap; gap:0; margin-bottom:16px; }
  .personal-workspace .personal-tabs>button,.personal-workspace .personal-more-tools>summary { padding:10px; min-height:44px; font-size:12px; white-space:nowrap; }
  .personal-workspace .student-panel { border-radius:14px; padding:20px 16px; }
  .personal-workspace .student-panel-head { margin-bottom:16px; gap:10px; }
  .personal-workspace .student-panel-head h2 { font-size:18px; }
  .personal-workspace .personal-library>.student-panel-head { flex-wrap:nowrap; }
  .personal-workspace .personal-search-row>input { font-size:16px; padding:11px 12px; }
  .personal-workspace .personal-search-row>.student-button { padding:10px 12px; }
  .personal-workspace .personal-filter-options input,.personal-workspace .personal-filter-options select { font-size:16px; }
  .personal-workspace .personal-question-row { grid-template-columns:24px minmax(0,1fr) 68px; gap:8px 10px; padding:18px 0; }
  .personal-workspace .personal-question-row h3 { font-size:16px; }
  .personal-workspace .personal-question-row>.student-task-actions { grid-column:3; grid-row:1; align-self:start; justify-content:flex-end; width:auto; padding:0; }
  .personal-workspace .personal-question-row>.student-task-actions>.student-button { width:68px; font-size:12px; padding:8px 7px; }
  .personal-workspace .personal-question-row:not(:has(.personal-pick)) { grid-template-columns:minmax(0,1fr) 68px; }
  .personal-workspace .personal-question-row:not(:has(.personal-pick))>.student-task-actions { grid-column:2; }
  .personal-workspace .personal-pick { min-width:26px; padding-right:0; }
  .personal-workspace .personal-chips>button { min-height:36px; }
  .personal-workspace .student-pagination { gap:6px; }
  .personal-workspace .student-pagination>.student-button { padding:8px 10px; font-size:12px; }
  .personal-workspace .student-pagination>span { font-size:11px; white-space:nowrap; }
  .personal-workspace .personal-question-detail>.student-panel-head { flex-direction:column; gap:8px; }
  .personal-workspace .personal-question-detail>.student-panel-head h2 { font-size:23px; }
  .personal-workspace .personal-detail-tools { justify-content:flex-start; width:auto; gap:4px; }
  .personal-workspace .personal-detail-tools>.student-button { padding-left:0; padding-right:18px; min-height:44px; font-size:12px; }
  .personal-workspace .personal-explain-entry { align-items:center; flex-direction:row; gap:12px; padding:16px; margin-bottom:18px; }
  .personal-workspace .personal-explain-entry>.student-primary { width:auto; min-height:46px; padding:10px 12px; font-size:12px; }
  .personal-workspace .personal-original-question .student-rich { font-size:16px; line-height:1.9; }
  .personal-workspace .personal-review details { padding:10px 12px; }
  .personal-workspace .personal-question-tools>.student-submit-bar { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; }
  .personal-workspace .personal-question-tools>.student-submit-bar>.student-button { min-width:0; width:100%; padding:9px 7px; font-size:12px; }
  .personal-workspace .personal-question-tools>.student-submit-bar>.student-muted { grid-column:1/-1; }
  .personal-workspace .personal-record-fields textarea { font-size:16px; }
  .personal-workspace .personal-photo-upload { padding:16px; }
  .personal-workspace .personal-photo-upload .student-file-button { width:100%; }
  .personal-workspace .personal-editor>.student-panel-head>.student-button { padding:8px 10px; font-size:12px; }
  .personal-workspace .personal-save-bar { align-items:stretch; }
}
@media screen {
  .personal-workspace .personal-field-extras { margin:20px 0; border-top:1px solid #dfe5ef; border-bottom:1px solid #dfe5ef; padding:6px 0; }
  .personal-workspace .personal-field-extras>summary,.personal-workspace .personal-analysis-settings>summary { cursor:pointer; min-height:44px; padding:11px 0; font-size:13px; color:#52647e; }
  .personal-workspace .personal-field-extras>summary>span { color:#7b879a; margin-left:8px; font-size:11px; }
  .personal-workspace .personal-field-extras>.student-form-grid { margin:12px 0 20px; }
  .personal-workspace .personal-field-extras [data-n-tags] { margin:20px 0 12px; }
  .personal-workspace .personal-analysis-settings[open] { padding-bottom:12px; }
  .personal-workspace .personal-analysis-settings>summary { text-align:right; color:#3157d5; }
  .personal-workspace .personal-analysis-settings[open]>summary { margin-bottom:10px; }
  .personal-workspace .personal-editor .personal-ai-controls { flex-basis:240px; width:240px; }
  .personal-workspace .personal-editor .personal-ai-controls:has(.personal-analysis-settings[open]) { flex-basis:320px; width:320px; }
  .personal-workspace .personal-editor .student-form-grid select { appearance:none; -webkit-appearance:none; min-height:44px; padding:10px 34px 10px 12px; background-color:#fff; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%2365748a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-position:right 12px center; background-repeat:no-repeat; }
}
@media screen and (max-width:700px) {
  .personal-workspace .personal-editor .personal-ai-controls,.personal-workspace .personal-editor .personal-ai-controls:has(.personal-analysis-settings[open]) { width:100%; flex-basis:auto; }
  .personal-workspace .personal-editor-ai { gap:12px; }
  .personal-workspace .personal-editor .student-form-grid select { font-size:16px; }
}

@media screen and (max-width:359px) {
  .personal-workspace .personal-question-row { grid-template-columns:24px minmax(0,1fr); }
  .personal-workspace .personal-question-row>.student-task-actions { grid-column:2; grid-row:auto; justify-content:flex-start; }
  .personal-workspace .personal-question-row:not(:has(.personal-pick)) { grid-template-columns:minmax(0,1fr); }
  .personal-workspace .personal-question-row:not(:has(.personal-pick))>.student-task-actions { grid-column:1; }
  .personal-workspace .personal-explain-entry { padding:12px; gap:8px; }
  .personal-workspace .personal-explain-entry p { display:none; }
  .personal-workspace .personal-explain-entry strong { font-size:14px; }
}

/* Notebook is the default destination; classroom history remains a secondary route. */
.student-study-shell .student-main-nav { justify-content:space-between; align-items:stretch; }
.student-space-more { position:relative; align-self:center; z-index:4; }
.student-space-more>summary { min-height:44px; display:flex; align-items:center; gap:8px; padding:10px 4px 10px 14px; color:#65748a; cursor:pointer; list-style:none; font-size:13px; }
.student-space-more>summary::-webkit-details-marker { display:none; }
.student-space-more>summary::after { content:""; width:6px; height:6px; border:solid currentColor; border-width:0 1.5px 1.5px 0; transform:translateY(-2px) rotate(45deg); }
.student-space-more>summary:focus-visible { outline:3px solid #80bfff; outline-offset:3px; border-radius:6px; }
.student-space-more>div { position:absolute; right:0; top:100%; width:208px; max-width:calc(100vw - 32px); padding:6px; border:1px solid #dfe5ef; border-radius:12px; background:#fff; box-shadow:0 8px 24px #1d2b4214; }
.student-study-shell .student-space-more>div>button { display:block; width:100%; min-height:44px; padding:10px 12px; border:0; border-radius:7px; text-align:left; color:#1d2b42; }
.student-space-more>div>button:hover { background:#f3f6fb; }
.student-space-more>div>button>span { display:block; font-size:11px; font-weight:400; color:#65748a; margin-top:2px; }