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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Working surfaces share the same readable type and spacing. */
.view-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}.view-controls .segmented button{font-size:14px;min-width:76px;padding:9px 16px}.collection-panel{padding:26px 30px;margin-bottom:24px}.collection-head{display:flex;justify-content:space-between;gap:20px;align-items:center}.collection-head p,.section-description{font-size:14px;color:var(--muted);margin:7px 0 0;line-height:1.8}.count-pill{font-size:13px;margin-left:8px;padding:3px 9px;background:#edf2ff;color:var(--blue);border-radius:6px;font-weight:500}.empty-state{text-align:center;padding:55px 20px 35px;color:#7c8ba3}.empty-state>svg{width:44px;height:44px;color:#a3b4d1;margin-bottom:15px}.empty-state h3{font-size:18px;color:#586c8a;margin-bottom:10px}.empty-state p{font-size:14px;max-width:430px;margin:0 auto 23px;line-height:1.9}.empty-state.compact{padding:25px 20px}.question-list{margin-top:20px}.question-list-row{display:flex;align-items:center;gap:15px;padding:18px 0;border-top:1px solid var(--line)}.question-list-row>div{min-width:0;flex:1}.question-list-row strong{display:block;font-size:15px}.question-list-row small{display:block;font-size:12px;color:var(--muted);margin-top:5px}.due-date{font-size:12px;color:var(--muted);text-align:right}.question-list-row .bookmark{padding:8px;margin-left:5px}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-bottom:24px}.metric{padding:24px 28px}.metric>span{font-size:14px;color:#6c7c94}.metric>strong{display:block;font-size:42px;line-height:1.5;color:var(--blue);margin-top:10px;font-weight:650}.metric>strong small{font-size:17px;color:#8593aa;font-weight:400}.metric p{font-size:12px;color:#8896aa;margin:5px 0 0}.stats-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.chart-panel{padding:26px 28px}.week-chart{display:flex;gap:12px;align-items:flex-end;margin-top:35px}.chart-column{display:flex;flex-direction:column;align-items:center;gap:9px;flex:1;min-width:0}.chart-column>strong{font-size:14px;font-weight:500;color:#6581b5}.chart-column>span{font-size:12px;color:var(--muted)}.bar-slot{height:150px;width:100%;max-width:38px;display:flex;align-items:flex-end}.chart-bar{width:100%;display:block;background:#9eb6ee;border-radius:5px 5px 1px 1px;min-height:3px}.chart-column:last-child .chart-bar{background:var(--blue)}.chart-bar.zero,.chart-column:last-child .chart-bar.zero{background:#e2e8f3}.category-stat{margin-top:20px}.category-stat>div:first-child{display:flex;justify-content:space-between;align-items:center;font-size:14px;gap:10px}.category-stat strong{font-size:13px;color:#6d80a1}.category-stat small{display:block;text-align:right;font-size:12px;color:#97a3b5;margin-top:5px}.mini-track{height:6px;border-radius:6px;background:#edf1f7;overflow:hidden;margin-top:9px}.mini-track>span{display:block;height:100%;background:#7999e0;border-radius:6px}.settings-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,1fr);gap:24px}.settings-panel{padding:28px 30px;margin-bottom:24px}.setting-title{display:flex;align-items:center;gap:12px;margin-bottom:22px}.setting-title>svg{color:#829aca}.setting-facts{margin:18px 0}.setting-facts>div{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid #eff2f7;font-size:14px}.setting-facts span{color:var(--muted)}.setting-facts strong{font-size:14px;font-weight:600}.setting-section{margin-top:26px;padding-top:23px;border-top:1px solid var(--line)}.setting-section h3{font-size:16px;margin-bottom:10px}.setting-section p,.danger-panel p{font-size:14px;line-height:1.9;color:var(--muted)}.setting-section .button{margin-top:6px}.danger-panel h2{font-size:16px}.danger-panel p{margin:14px 0}.button.danger{color:var(--red);border-color:#e9c9cb;background:#fffafb}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}.diagram-zoom{display:block;border:0;background:transparent;width:100%;padding:0;cursor:zoom-in}.diagram-zoom .question-diagram{margin-bottom:0}.zoom-label{display:block;font-size:12px;text-align:right;margin:6px 0 20px;color:var(--muted)}dialog:has(.question-diagram){width:min(900px,calc(100% - 30px))}dialog .question-diagram{margin-bottom:20px}.question-text{white-space:pre-line}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.brand small,.sidebar-bottom,.sidebar-bottom strong,.eyebrow,.page-footer,.subject-copy small,.start-area .muted,.source-note,.question-number,.question-diagram figcaption{font-size:12px}.subject-copy span,.mode-card small,.today-row>span,.review-card p,.learning-note p,.confidence,.next-row>span,.source-row .field-label,.segmented button,.text-link{font-size:14px}.device-label{font-size:12px}.mode-card strong{font-size:15px}.field-label span,.learning-note strong{font-size:14px}.date-label{font-size:14px}.subject-grid,.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.subject-copy{min-width:0}.subject-card{gap:10px}.subject-card .radio-dot{position:absolute;right:12px;top:12px}.today-card{padding:23px}.today-row{align-items:baseline}.page-footer{font-size:12px}.topbar{height:68px}main{padding-top:30px}.page-heading{margin-bottom:23px}.study-panel{padding-top:23px;padding-bottom:23px}.section-head{padding-bottom:18px}.form-block{margin-top:20px}.subject-card{min-height:102px}.mode-card{padding-top:13px;padding-bottom:13px}.source-row{margin-top:21px;padding-bottom:21px}.start-area{padding-top:21px}.start-area .muted{font-size:12px}.study-panel .section-head .muted{font-size:12px}
@media(max-width:1200px){.study-layout{grid-template-columns:minmax(0,1fr) 250px}.study-panel{padding:22px}.subject-numeral{display:none}.subject-copy{padding-right:12px}.brand small{font-size:10px}.metric{padding:20px}.metric>strong{font-size:35px}}
@media(max-width:980px){.study-layout{grid-template-columns:1fr}.subject-numeral{display:block}.stats-layout,.settings-layout{grid-template-columns:1fr}.metric-grid{gap:12px}.metric{padding:18px}.metric>span{font-size:13px}.metric>strong{font-size:31px}.metric>strong small{font-size:14px}.collection-panel{padding:25px}.subject-copy span{font-size:14px}.mode-card small{font-size:13px}.brand small{font-size:9px}.topbar>span:first-child{font-size:12px}.topbar{gap:12px}}
@media(max-width:700px){.brand small{font-size:12px}.sidebar{padding-top:12px}.sidebar nav{margin-top:12px}.nav-item{flex-direction:column;font-size:14px;gap:3px;padding:8px 3px}.nav-count{position:absolute;right:7px;top:2px}.topbar{height:46px;padding:0 20px;gap:12px}.topbar>span:first-child{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%}.device-label{font-size:12px}.page-heading h1{font-size:24px}.page-heading p{font-size:14px}.eyebrow{font-size:12px}.study-panel{padding:22px 20px}.subject-copy small{font-size:12px}.mode-card small{font-size:12px}.mode-card strong{font-size:14px}.subject-grid{grid-template-columns:1fr}.subject-card{min-height:88px;padding:16px 20px;gap:20px}.subject-copy span{font-size:14px}.subject-numeral{width:30px;font-size:35px}.radio-dot{right:18px!important;top:18px!important}.source-row .field-label,.segmented button{font-size:14px}.segmented button{padding:7px 10px}.start-area>div{align-items:flex-start}.start-area strong span{font-size:14px}.start-area .muted{font-size:12px;max-width:140px}.review-card h2,.today-card h2{font-size:15px}.review-card p,.today-row>span,.text-link,.learning-note p{font-size:13px}.today-card,.review-card{padding:20px}.review-card .button{font-size:14px}.learning-note strong{font-size:14px}.page-footer{font-size:12px;flex-wrap:wrap}.question-text{font-size:18px}.answer{font-size:16px}.confidence,.bookmark,.next-row>span{font-size:13px}.source-note{font-size:12px}.view-controls{gap:12px}.view-controls .segmented button{padding:8px 13px;min-width:65px}.collection-panel{padding:22px 20px}.collection-head{align-items:flex-start;flex-direction:column}.collection-head h2{font-size:17px}.question-list-row{gap:10px;flex-wrap:wrap}.question-list-row>div{flex-basis:65%}.question-list-row .due-date{font-size:12px}.question-list-row .bookmark{margin-left:auto}.question-list-row strong{font-size:14px}.upcoming .question-list-row>div{flex-basis:55%}.metric-grid{grid-template-columns:1fr;gap:12px}.metric{padding:19px 22px;display:grid;grid-template-columns:1fr auto;gap:5px}.metric>strong{grid-row:1 / 3;grid-column:2;margin:0;font-size:32px}.metric>span{font-size:14px}.metric p{font-size:12px}.chart-panel,.settings-panel{padding:23px}.stats-layout{gap:18px}.week-chart{gap:8px}.chart-column>span{font-size:12px}.settings-layout{gap:0}.setting-facts{font-size:14px}.history-panel .question-list-row>div{flex-basis:55%}.result-panel>p{font-size:14px}}
@media(max-width:380px){.study-aside{grid-template-columns:1fr}.start-area>div{flex-wrap:wrap}.start-area .muted{max-width:none;text-align:left}.mode-grid{grid-template-columns:1fr}.mode-card small{font-size:13px}.source-row{flex-direction:column;align-items:flex-start}.question-meta{flex-wrap:wrap}.answer-status{display:none}}
:root{--muted:#60718b}.brand small{font-size:12px}.eyebrow,.field-label,.nav-caption,.subject-copy small,.question-number,.source-note,.page-footer,.date-label,.metric p,.category-stat small,.sidebar-bottom{color:#697991}.subject-copy span,.bookmark,.references summary{color:#62728c}.bookmark.marked{color:var(--blue)}.sidebar-bottom .edition{color:#c0cadc}.question-diagram svg{font-family:inherit}.subject-picker button{min-height:44px}
dialog .question-diagram{overflow-x:auto;text-align:left}dialog .question-diagram svg{display:block;min-width:540px;margin-inline:auto}dialog .question-diagram figcaption{min-width:540px;text-align:center}.zoom-help{font-size:14px;color:var(--muted);line-height:1.8}
.past-question{margin:0 0 24px;min-width:0}.past-zoom{display:block;width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:zoom-in}.past-zoom img{display:block;width:100%;height:auto}.past-question figcaption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:8px}.image-answers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.image-answers .answer{justify-content:center;padding:12px;flex-wrap:wrap}.image-answers .answer-status{margin:0}.past-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.past-dialog-head h2{font-size:16px;margin:0}.past-dialog-head .button{flex-shrink:0}.past-scroll{overflow:auto;max-height:65vh;border:1px solid var(--line);background:white}.past-scroll img{display:block;max-width:none;min-width:800px;width:auto;height:auto;margin:auto}dialog:has(.past-scroll){width:min(1000px,calc(100% - 24px));padding:20px;max-height:94vh}.image-answers .answer-letter{font-size:17px}.past-zoom:focus-visible,.past-scroll:focus-visible{outline:3px solid var(--blue);outline-offset:3px}@media(max-width:700px){.past-zoom{padding:4px}.image-answers{gap:6px}.image-answers .answer{padding:10px 5px}.past-dialog-head{gap:8px}.past-dialog-head h2{font-size:14px}.past-scroll{max-height:62vh}}

/* Afternoon written-answer practice */
.pm-section-tabs{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0}.pm-section-tabs .chip{min-height:44px}.pm-section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-top:22px}.pm-section-heading h3{margin:0;font-size:17px}.pm-section-heading h3:focus{outline:none}.pm-show-prompt{margin:12px 0 0}.pm-answer-field.pm-response{margin:20px 0}.pm-response input,.pm-response select,.pm-legacy textarea{display:block;width:100%;min-width:0;border:1px solid #cdd6e5;border-radius:8px;padding:11px 12px;background:#fcfdff;color:var(--ink);font:inherit;font-size:16px;min-height:46px}.pm-response input:focus-visible,.pm-response select:focus-visible,.pm-legacy textarea:focus-visible{outline:3px solid #78a0ff;outline-offset:2px}.pm-answer-field.pm-response textarea{min-height:72px;font-size:16px}.pm-field-help{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-top:6px;font-size:12px;color:var(--muted)}.pm-field-help>span:last-child{flex-shrink:0}.pm-over-limit{color:var(--red);font-weight:700}.pm-count-help{line-height:1.8}.pm-legacy{margin-top:18px;padding:12px;background:#fff8eb;border:1px solid #eeddb9;border-radius:8px}.pm-legacy summary{font-size:13px;font-weight:600;cursor:pointer}.pm-legacy p{margin:10px 0}.pm-legacy textarea{resize:vertical;font-size:14px}.pm-response-fields{min-width:0}.pm-answer-panel .pm-notice{margin-top:16px;font-size:12px}.pm-reader{scroll-margin-top:16px}
.pm-home-link{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;margin-top:24px}.pm-home-link strong,.pm-home-link div span{display:block}.pm-home-link strong{color:var(--ink);font-size:16px}.pm-home-link div span{color:var(--muted);font-size:12px;margin-top:4px}.pm-home-link>span{font-size:13px;white-space:nowrap}
.pm-summary{display:flex;gap:36px;margin:0 0 24px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.pm-summary strong{font-size:28px;color:var(--ink);margin-right:4px}.pm-filters{padding:24px;display:flex;flex-wrap:wrap;gap:20px 32px}.pm-filters .field-label{margin-bottom:8px}.pm-chips{display:flex;gap:7px;flex-wrap:wrap}.pm-chips .chip{margin:0}.pm-instructions{margin:22px 0}.pm-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.pm-question-card{padding:23px;display:flex;flex-direction:column;color:var(--ink);transition:border-color .15s}.pm-question-card:hover{border-color:#8ea8ef;box-shadow:0 5px 18px #1b315510}.pm-card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;font-size:12px;color:var(--muted)}.pm-question-card h2{margin:5px 0 10px;font-size:18px}.pm-question-card p{font-size:12px;color:var(--muted);margin-bottom:20px}.pm-card-start{margin-top:auto;font-size:13px;color:var(--blue)}.pm-status{font-size:11px;padding:3px 9px;border-radius:5px;background:var(--soft);color:#6c7a91;white-space:nowrap}.pm-status.done{background:#eaf6ef;color:var(--green)}.pm-status.review{background:#fff2db;color:#8f631b}.pm-status.draft{background:#eef2ff;color:var(--blue)}
.pm-workspace{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:22px;align-items:start}.pm-reader{overflow:hidden}.pm-reader-head{padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line)}.pm-reader-head a,.pm-solutions a{font-size:12px}.pm-pagination{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 12px;background:#fafbfe;font-size:12px}.pm-pagination small{display:block;text-align:center;color:var(--muted);font-size:10px}.pm-pagination .button{font-size:12px;padding:6px 10px}.pm-page-image{display:block;border:0;background:white;padding:0;width:100%;cursor:zoom-in}.pm-page-image img{display:block;width:100%;height:auto}.pm-image-help{font-size:11px;color:var(--muted);padding:10px 18px;margin:0;text-align:center}.pm-page-numbers{display:flex;gap:6px;flex-wrap:wrap;padding:14px 18px;border-top:1px solid var(--line)}.pm-page-numbers .chip{padding:4px 10px;min-width:34px;margin:0}.pm-answer-panel{padding:22px;position:sticky;top:16px;max-height:calc(100vh - 32px);overflow-y:auto}.pm-answer-panel .section-head{padding-bottom:14px;align-items:flex-start}.pm-answer-panel .section-head span{font-size:10px}.pm-answer-panel .section-description{margin-top:15px;font-size:12px}.pm-answer-field{margin:20px 0}.pm-answer-field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.pm-answer-field small{font-size:11px;font-weight:400}.pm-answer-field textarea{width:100%;display:block;resize:vertical;border:1px solid #cdd6e5;border-radius:8px;background:#fcfdff;padding:12px;font:inherit;font-size:14px;line-height:1.8;color:var(--ink);min-height:100px}.pm-answer-field textarea:focus-visible{outline:3px solid #78a0ff;outline-offset:2px}.pm-answer-panel>.button{width:100%}.pm-answer-panel>.muted{font-size:11px;margin:12px 0 0}.pm-solutions{padding:26px;margin-top:26px;scroll-margin-top:18px}.pm-solutions .section-head p{margin:7px 0 0}.pm-answer-images{max-width:860px;margin:20px auto}.pm-commentary{border-top:1px solid var(--line);padding-top:24px}.pm-commentary h3{font-size:16px}.pm-commentary p{font-size:14px;line-height:2;overflow-wrap:anywhere}.pm-grade{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}.pm-grade>span{font-size:13px;margin-right:auto}.pm-notice p{margin:6px 0 0;font-size:13px}.pm-notice{background:#fff8eb;border-color:#eeddb9}.pm-solutions .pm-page-image+.pm-page-image{border-top:1px solid var(--line)}
@media(max-width:1100px){.pm-workspace{grid-template-columns:minmax(0,1fr)}.pm-answer-panel{position:static;max-height:none}.pm-card-meta{flex-wrap:wrap}.pm-answer-panel .section-head span{font-size:12px}}
@media(max-width:650px){.pm-card-grid{grid-template-columns:1fr}.pm-filters{padding:18px;gap:18px}.pm-summary{gap:16px}.pm-summary strong{font-size:24px}.pm-summary>span{font-size:11px}.pm-question-card{padding:20px}.pm-home-link{align-items:flex-start;flex-direction:column;padding:20px;gap:10px}.pm-solutions{padding:16px}.pm-answer-panel{padding:18px}.pm-grade{align-items:stretch}.pm-grade>span{width:100%}.pm-grade .button{flex:1}.pm-pagination{padding:12px 8px}.pm-reader-head{padding:15px}.sidebar nav{gap:0}.nav-item{padding-left:7px;padding-right:7px}.nav-item span{font-size:11px}}