:root{--ink:var(--lx-text);--muted:var(--lx-muted);--line:var(--lx-rule);--blue:var(--lx-accent);--sky:var(--lx-accent);--violet:var(--lx-accent);--bg:var(--lx-canvas);--side:var(--lx-canvas)}*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--lx-font-histology);font-size:var(--lx-font-size);line-height:var(--lx-histology-line-height)}a{color:var(--blue);text-underline-offset:3px}button{font:inherit;cursor:pointer}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--lx-accent);outline-offset:4px}.shell{display:grid;grid-template-columns:245px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--side);color:var(--lx-canvas);padding:32px 22px;display:flex;flex-direction:column;overflow:auto}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--lx-on-accent);font-size:24px;font-weight:650;line-height:1.15}.brand small{font-size:12px;letter-spacing:3px;font-weight:500;color:var(--lx-muted)}.brandmark{font-size:45px;color:var(--sky)}.exam{margin:30px 0 25px;font-size:14px;color:var(--lx-muted);line-height:1.8}.exam strong{color:var(--lx-canvas);font-size:14px;font-weight:500}.sidebar nav a{display:flex;justify-content:space-between;align-items:center;gap:10px;color:var(--lx-muted);text-decoration:none;padding:12px 14px;border-radius:6px;margin:3px 0;line-height:1.45}.sidebar nav a:hover{background:var(--lx-canvas);color:var(--lx-on-accent)}.sidebar nav a.active{background:var(--lx-canvas);color:var(--lx-on-accent);border-left:1px solid var(--sky)}.sidebar .count{font-size:12px;opacity:.75}.navlabel{font-size:12px;letter-spacing:2px;color:var(--lx-muted);margin:24px 14px 8px}.sidefoot{margin-top:auto;padding-top:36px;font-size:12px;color:var(--lx-muted)}.workspace{min-width:0;padding:34px 44px 18px;max-width:1600px;width:100%;margin:auto} .page-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:25px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--blue)}h1{font-size:26px;line-height:1.4;margin:4px 0;font-weight:650}h2{font-size:26px;line-height:1.4;margin:0 0 12px}h3{font-size:20px;line-height:1.5;margin:0 0 10px}p{margin:0 0 14px}.quiet{background:transparent;border:1px solid var(--lx-control-line);padding:7px 15px;border-radius:5px;color:var(--ink);font-size:14px}.tabs{display:flex;gap:26px;border-bottom:1px solid var(--lx-rule);margin-bottom:28px;flex-wrap:wrap}.tabs a{font-size:15px;text-decoration:none;color:var(--muted);padding:10px 0;border-bottom:1px solid transparent}.tabs a.active{color:var(--blue);border-color:var(--blue);font-weight:650}.lead{border-left:1px solid var(--blue);padding:0 0 0 20px;margin-bottom:24px}.lead p{color:var(--muted);max-width:850px}.kicker{font-size:13px;letter-spacing:1px;color:var(--violet);font-weight:650}.guide{background:var(--lx-canvas);border:1px solid var(--lx-rule);padding:20px 24px;margin-bottom:26px;border-radius:7px}.guide strong{color:var(--blue)}.guide ol{margin:8px 0 0;padding-left:24px}.index{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 28px}.index a{display:block;border:1px solid var(--line);background:var(--lx-surface);font-size:14px;padding:6px 12px;text-decoration:none;border-radius:4px}.card{scroll-margin-top:20px;background:var(--lx-surface);border:1px solid var(--line);border-radius:8px;box-shadow:none;margin:0 0 26px;overflow:hidden}.cardhead{padding:22px 26px 14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:start;gap:16px}.cardhead h3{font-size:21px;font-weight:650}.tag{font-size:12px;background:var(--lx-canvas);color:var(--lx-muted);padding:3px 9px;border-radius:4px;white-space:nowrap}.answer{color:var(--blue);font-weight:650;font-size:20px;line-height:1.4;overflow-wrap:anywhere}.zh{font-size:15px;color:var(--muted);margin-top:3px}.cardbody{display:grid;grid-template-columns:minmax(240px,.95fr) minmax(280px,1.1fr)}.visual{background:var(--lx-surface);border-right:1px solid var(--line);padding:20px}.imagebutton{display:block;width:100%;border:0;padding:0;background:#fff;border-radius:4px;overflow:hidden}.imagebutton img{display:block;width:100%;height:320px;object-fit:contain;background:#fff}.caption{font-size:13px;color:var(--muted);line-height:1.65;margin:12px 0 0}.caption a{overflow-wrap:anywhere}.relatedimage{font-size:13px;padding:8px 10px;background:var(--lx-canvas);color:var(--lx-accent);margin-top:8px}.evidence{padding:20px 26px}.evidence dl{margin:0}.evidence dt{font-size:13px;letter-spacing:1px;color:var(--blue);font-weight:650;margin:14px 0 4px}.evidence dt:first-child{margin-top:0}.evidence dd{margin:0}.evidence ul{margin:5px 0;padding-left:20px}.evidence li{margin-bottom:5px}.warning{padding:12px 16px;background:var(--lx-warning-surface);border-left:1px solid var(--lx-warning);margin-top:16px;font-size:14px;color:var(--lx-warning)}.note{padding:12px 16px;background:var(--lx-canvas);border-left:1px solid var(--lx-accent);margin-top:12px;font-size:14px}.reference{font-size:12px;color:var(--muted);margin-top:14px}.textcard .cardbody{grid-template-columns:1fr}.textcard .evidence{max-width:980px}.noimage{padding:12px;font-size:14px;color:var(--muted)}.tablewrap{overflow:auto;background:var(--lx-surface);border:1px solid var(--line);border-radius:7px;margin-bottom:26px}table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.65}th{background:var(--lx-canvas);color:var(--lx-text);text-align:left;padding:14px 18px;font-size:14px}td{padding:14px 18px;vertical-align:top;border-top:1px solid var(--line)}td:first-child{font-weight:600;min-width:150px}.compareblock{margin-bottom:32px}.compareblock h3{margin-bottom:12px}.glossary td:nth-child(2){color:var(--blue);font-weight:600;min-width:220px;overflow-wrap:anywhere}.glossary td:nth-child(3){font-size:14px}.callout{padding:18px 22px;background:var(--lx-surface);border:1px solid var(--line);border-radius:6px;margin-bottom:20px}.courselist{display:grid;gap:24px;grid-template-columns:1fr 1fr}.coursecard{background:var(--lx-surface);border:1px solid var(--line);border-radius:7px;padding:20px;min-width:0}.coursecard img{width:100%;height:290px;object-fit:contain}.coursecard details{border-top:1px solid var(--line);padding-top:12px;margin-top:14px}.coursecard summary{cursor:pointer;color:var(--blue);font-weight:600}.coursecard .answer{margin:12px 0 8px}.sourceslist{background:var(--lx-surface);padding:24px;border:1px solid var(--line);border-radius:6px}.sourceslist li{margin-bottom:10px}footer{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding:20px 0;margin-top:38px}.skip{position:absolute;top:-80px;left:10px;background:var(--lx-surface);padding:12px;z-index:100}.skip:focus{top:10px}dialog{max-width:94vw;max-height:94vh;width:1100px;border:1px solid var(--lx-control-line);border-radius:9px;padding:20px;background:var(--lx-surface);color:var(--ink)}dialog::backdrop{background:rgb(45 43 37 / 78%)}dialog img{width:100%;max-height:78vh;object-fit:contain}dialog p{font-size:14px;margin:5px 0 0}.close{float:right;border:1px solid var(--line);background:var(--lx-surface);border-radius:4px;padding:4px 12px}.badge{display:inline-block;font-size:12px;color:var(--lx-warning);background:var(--lx-warning-surface);border:1px solid var(--lx-warning-surface);border-radius:3px;padding:2px 8px;margin-bottom:10px}.sourcegrid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.vocabgroup{margin-bottom:36px}.microterm{font-weight:650;color:var(--violet)}.small{font-size:14px;color:var(--muted)}.flow{display:flex;gap:10px;flex-wrap:wrap;counter-reset:steps;margin:12px 0}.flow span{background:var(--lx-surface);border:1px solid var(--lx-rule);border-radius:5px;padding:8px 14px}.flow span:before{counter-increment:steps;content:counter(steps) ' ';font-weight:700;color:var(--blue);margin-right:6px}@media(min-width:1550px){.workspace{padding-left:55px;padding-right:55px}.imagebutton img{height:380px}}@media(max-width:1050px){.shell{grid-template-columns:205px minmax(0,1fr)}.sidebar{padding:25px 14px}.workspace{padding:28px 25px}.cardbody{grid-template-columns:1fr}.visual{border-right:0;border-bottom:1px solid var(--line)}.imagebutton img{height:350px}.courselist{grid-template-columns:1fr}.sourcegrid{grid-template-columns:1fr}}@media(max-width:700px){.shell{display:block}.sidebar{position:static;height:auto;padding:16px 18px;display:block}.brand{font-size:20px}.brandmark{font-size:34px}.exam{margin:12px 0;font-size:13px}.sidebar nav{display:flex;gap:6px;overflow-x:auto}.sidebar nav a{flex-shrink:0;padding:8px 12px;font-size:14px}.navlabel,.sidefoot,.count{display:none}.workspace{padding:24px 16px}.tabs{gap:20px;margin-bottom:22px}.tabs a{font-size:14px}h1{font-size:22px}h2{font-size:23px}.quiet{padding:6px 9px}.cardhead{padding:18px 18px 12px}.cardhead .tag{display:none}.cardhead h3{font-size:19px}.answer{font-size:19px}.evidence{padding:18px}.visual{padding:14px}.imagebutton img{height:280px}.guide{padding:16px}.lead{padding-left:16px}.coursecard{padding:16px}th,td{padding:12px}.glossary table{min-width:590px}.sourcegrid{display:block}.sourcegrid>*{margin-bottom:20px}}@media print{.sidebar,header,.tabs,footer,.quiet,.index{display:none}.shell{display:block}.workspace{padding:0;max-width:none}.card{break-inside:avoid;box-shadow:none}.cardbody{grid-template-columns:40% 60%}.imagebutton img{height:220px}.reference,.caption{font-size:10px}.cardhead{padding:10px}.evidence{padding:10px}body{font-size:12px;background:var(--lx-surface)}.answer{font-size:17px}h2{font-size:22px}a{color:inherit}.coursecard details{display:block}dialog{display:none}}
:root{color-scheme:light}figure{margin:0}figure+figure{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.quickfind{margin:0 0 28px}.quickfind label{display:block;color:var(--ink);font-size:14px;margin-bottom:7px}.quickfind label span{color:var(--muted);margin-left:10px;font-size:12px}.quickfind input{font:inherit;font-size:15px;width:100%;max-width:680px;background:var(--lx-surface);color:var(--ink);border:1px solid var(--lx-control-line);border-radius:5px;padding:10px 14px;min-height:44px}.quickfind input:focus{outline:2px solid var(--blue);outline-offset:2px}#find-results{background:var(--lx-surface);border:1px solid var(--line);border-radius:6px;padding:14px;margin-top:10px;max-height:360px;overflow:auto}#find-results>div{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}#find-results a{padding:8px 12px;border:1px solid var(--line);border-radius:4px;text-decoration:none}#find-results small{display:block;color:var(--muted);font-size:12px}@media print{.quickfind{display:none}}
@media(max-width:700px){.cardhead{flex-direction:column;gap:8px}.cardhead .tag{display:inline-block}.tabs{gap:12px}.tabs a{font-size:13px}.sidebar nav::before{content:'左右滑動選章節';font-size:11px;align-self:center;color:var(--lx-muted);min-width:48px;flex-shrink:0;line-height:1.5}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.spell-panel{max-width:880px;background:var(--lx-surface);border:1px solid var(--line);border-radius:8px;padding:24px 28px}.spell-settings{display:flex;gap:16px;align-items:end}.spell-settings>div{flex:1;max-width:480px}.spell-panel label{display:block;font-size:14px;color:var(--ink);font-weight:600;margin-bottom:6px}.spell-panel select,.spell-panel input{width:100%;min-height:46px;font:inherit;color:var(--ink);border:1px solid var(--lx-control-line);border-radius:5px;background:var(--lx-surface);padding:9px 12px}.spell-panel input{font-family:var(--lx-font-histology);font-size:18px}.spell-panel input:focus,.spell-panel select:focus{outline:2px solid var(--blue);outline-offset:2px}.spell-panel input[readonly]{background:var(--lx-canvas)}.spell-panel input[aria-invalid=true]{border-color:var(--lx-error)}.spell-panel button:disabled,.spell-panel select:disabled{opacity:.5;cursor:default}.spell-primary{background:var(--blue);color:var(--lx-on-accent);border:1px solid var(--blue);border-radius:5px;min-height:44px;padding:9px 18px;font-size:15px}.spell-primary:hover:enabled{background:var(--lx-text)}.spell-scope-hint{margin:6px 0 0}.spell-score{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--muted);padding-top:20px;border-top:1px solid var(--line);margin-top:22px}.spell-question{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0}.spell-question h3{font-size:28px;line-height:1.5;margin:5px 0 0}.spell-clock{min-width:88px;text-align:center;background:var(--lx-canvas);color:var(--blue);border-radius:6px;padding:8px 14px;line-height:1.1}.spell-clock strong{display:block;font-variant-numeric:tabular-nums;font-size:42px}.spell-clock span{font-size:14px}.spell-clock.urgent{color:var(--lx-error);background:var(--lx-error-surface)}.spell-meter{height:5px;background:var(--lx-canvas);border-radius:3px;margin-bottom:24px;overflow:hidden}.spell-meter>div{height:100%;background:var(--blue);width:100%;transition:width .1s linear}.spell-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.spell-feedback{margin-top:24px;padding:18px 20px;border-radius:6px;border-left:1px solid var(--blue);background:var(--lx-canvas)}.spell-feedback.correct{border-color:var(--lx-success);background:var(--lx-success-surface)}.spell-feedback.incorrect{border-color:var(--lx-error);background:var(--lx-error-surface)}.spell-feedback h4{font-size:20px;margin:0 0 8px}.spell-feedback dl{margin:12px 0}.spell-feedback dt{font-size:14px;color:var(--muted);margin-top:12px}.spell-feedback dd{margin:2px 0 0;overflow-wrap:anywhere}.spell-standard{font-size:21px;font-weight:650;color:var(--blue)}.spell-typed{font-family:var(--lx-font-histology);font-size:16px}.spell-rules{margin:22px 0 0;padding-top:18px;border-top:1px solid var(--line)}.spell-misses{display:grid;gap:10px}.spell-misses>div{display:flex;flex-direction:column;padding:14px 16px;border:1px solid var(--line);border-radius:5px}.spell-misses span{color:var(--blue);font-weight:600;overflow-wrap:anywhere}.spell-misses small{color:var(--muted);font-size:14px}.spell-panel #spell-review:empty{display:none}.spell-panel #spell-review{margin-top:22px}@media(max-width:700px){.spell-panel{padding:20px 16px}.spell-settings{align-items:stretch;flex-direction:column;gap:10px}.spell-settings>div{max-width:none}.spell-question{gap:12px}.spell-question h3{font-size:25px}.spell-clock{min-width:70px;padding:8px 10px}.spell-clock strong{font-size:36px}.spell-feedback{padding:16px}.spell-panel input{font-size:16px}.spell-standard{font-size:19px}}[hidden]{display:none!important}
.spell-score{scroll-margin-top:20px}
/* Course-image simulation: original photography and independently aligned targets. */
.mock-panel{background:var(--lx-surface);border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:32px}.mock-panel fieldset{border:0;padding:0;margin:0}.mock-panel legend{font-size:1.2rem;font-weight:750;margin-bottom:14px}.mock-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mock-topic-option{display:flex;align-items:center;gap:12px;padding:16px;border:1px solid var(--lx-control-line);border-radius:10px;cursor:pointer;background:var(--lx-canvas)}.mock-topic-option:has(input:checked){border-color:var(--lx-accent);background:var(--lx-canvas)}.mock-topic-option input{width:20px;height:20px;accent-color:var(--lx-accent);flex-shrink:0}.mock-topic-option strong,.mock-topic-option small{display:block}.mock-topic-option small{color:var(--lx-muted);margin-top:4px;font-size:.82rem}.mock-selection-actions{display:flex;gap:8px;margin-top:12px}.mock-settings-bottom{display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:20px;margin-top:24px}.mock-settings-bottom label{display:block;font-size:.88rem;margin-bottom:6px}.mock-settings-bottom select{width:100%;padding:10px;border:1px solid var(--lx-control-line);border-radius:8px;background:var(--lx-surface);font:inherit}.mock-settings-bottom p{margin:5px 0 0}.mock-bank-note{margin:22px 0 0;border-top:1px solid var(--lx-rule);padding-top:16px}.mock-run-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px}.mock-question-head{display:flex;gap:20px;justify-content:space-between;align-items:flex-start;margin:20px 0 14px}.mock-question-head h3{font-size:1.18rem;line-height:1.6;margin:8px 0 0}.mock-level{display:inline-block;margin-top:6px;padding:5px 10px;border-radius:6px;background:var(--lx-canvas);color:var(--lx-text);font-size:.8rem;font-weight:700;letter-spacing:.04em}.mock-image-button{display:flex;justify-content:center;align-items:center;width:100%;border:1px solid var(--lx-rule);border-radius:12px;overflow:hidden;padding:12px;background:#fff;cursor:zoom-in}.mock-photo{display:block;position:relative;max-width:100%;width:auto;overflow:hidden;line-height:0}.mock-photo img{display:block;width:100%;height:100%;object-fit:contain}.mock-image-button .mock-photo{height:auto;max-height:480px;width:min(100%,calc(480px * var(--mock-ratio,1.3333)))}.mock-marker{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.mock-photo-hint{text-align:right;margin:6px 0 14px}#mock-form label{display:block;font-weight:650;margin-bottom:7px}#mock-answer{width:100%;padding:14px 16px;border:1px solid var(--lx-control-line);border-radius:10px;font-size:1.12rem;background:var(--lx-surface)}#mock-answer:focus{outline:3px solid var(--lx-accent);border-color:var(--lx-accent)}#mock-answer[aria-invalid="true"]{border-color:var(--lx-error)}#mock-answer:disabled{background:var(--lx-canvas)}#mock-feedback details{padding:8px 0}#mock-feedback summary{cursor:pointer;font-weight:600}.mock-misses article{display:grid;grid-template-columns:180px 1fr;gap:20px;border-top:1px solid var(--lx-rule);padding:20px 0}.mock-misses h4{font-size:1.14rem;margin:5px 0}.mock-misses p{margin:6px 0}.mock-review-image{border:1px solid var(--lx-rule);border-radius:8px;padding:6px;background:#fff;align-self:start;cursor:zoom-in;width:180px}.mock-zoom{width:min(96vw,1300px);max-width:96vw;padding:18px}.mock-zoom-content{display:flex;justify-content:center;overflow:auto}.mock-zoom .mock-photo{width:auto;max-height:none}.mock-zoom img{max-height:none;width:100%;height:auto;max-width:none}.mock-zoom p{margin:12px 0 0;line-height:1.6}.mock-zoom .close{float:none;position:static;display:block;margin:0 0 14px auto}.mock-panel .spell-rules{margin-bottom:0}.mock-question-head .spell-clock{flex-shrink:0}#mock-load:empty{display:none}.mock-panel button:disabled{opacity:.5;cursor:default}.mock-panel .mock-image-button:disabled{opacity:1}
@media(max-width:700px){.mock-panel{padding:16px}.mock-topic-grid{grid-template-columns:1fr}.mock-topic-option{padding:12px}.mock-settings-bottom{grid-template-columns:1fr;gap:14px}.mock-settings-bottom select{max-width:200px}.mock-settings-bottom .spell-primary{width:100%}.mock-run-top{align-items:flex-start}.mock-run-top .quiet{font-size:.8rem;flex-shrink:0}.mock-question-head{gap:10px}.mock-question-head h3{font-size:1.03rem}.mock-image-button{padding:6px}.mock-image-button .mock-photo{max-height:420px;width:min(100%,calc(420px * var(--mock-ratio,1.3333)))}.mock-misses article{grid-template-columns:1fr;gap:10px}.mock-review-image{width:min(260px,100%)}.mock-zoom{padding:10px}.mock-photo-hint{font-size:.76rem}}

.mock-stage{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,1fr);gap:22px;align-items:start}.mock-answer-column{min-width:0}.mock-stage .spell-actions{flex-wrap:wrap}.mock-stage .spell-feedback{margin-top:16px}.mock-stage:has(#mock-form[hidden]){display:none}@media(max-width:1100px){.mock-stage{grid-template-columns:1fr}.mock-image-button .mock-photo{max-height:370px;width:min(100%,calc(370px * var(--mock-ratio,1.3333)))}}@media(max-width:700px){.mock-image-button .mock-photo{max-height:310px;width:min(100%,calc(310px * var(--mock-ratio,1.3333)))}}

.mock-zoom-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.mock-zoom-toolbar .close{margin:0}.mock-zoom-content{display:block;max-height:72vh;overflow:auto}.mock-zoom-content .mock-photo{width:100%;max-width:none}.mock-zoom-content.zoomed .mock-photo{width:200%}.mock-zoom-content img{display:block}

/* Course images retain their native aspect ratio, including target overlays. */
.atlas-photo{display:block;position:relative}.imagebutton .course-photo{width:min(100%,calc(320px * var(--atlas-ratio)));margin:auto}.imagebutton .course-photo img{width:100%;height:auto;max-height:none}.atlas-marker{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.reader-course-badge{display:inline-block;background:var(--lx-canvas);border:1px solid var(--lx-rule);color:var(--lx-accent);padding:1px 7px;border-radius:4px;font-size:11px;margin:0 8px 6px 0}.reader-image-label{display:block;color:var(--blue);font-size:14px;line-height:1.5;margin-bottom:6px}.reader-source,.reader-target-note{display:block;margin-top:5px;overflow-wrap:anywhere}.reader-target-note{font-size:11px;color:var(--lx-muted)}.imagebutton{cursor:zoom-in}.reader-zoom-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}#zoom .close{float:none}.reader-zoom-content{position:relative;display:block;overflow:auto;max-height:65vh}.reader-zoom-content .atlas-photo{width:min(100%,calc(65vh * var(--atlas-ratio)));margin:auto}.reader-zoom-content img{display:block;width:100%;height:auto;max-height:none;object-fit:contain}.reader-zoom-content.zoomed .atlas-photo{width:min(200%,calc(130vh * var(--atlas-ratio)));max-width:none}.reader-zoom-caption{margin-top:12px}#zoom{width:min(94vw,1300px)}@media(max-width:700px){.imagebutton .course-photo{width:min(100%,calc(300px * var(--atlas-ratio)))}#zoom{padding:12px}.reader-zoom-content{max-height:56vh}.reader-zoom-content .atlas-photo{width:min(100%,calc(56vh * var(--atlas-ratio)))}.reader-zoom-content.zoomed .atlas-photo{width:min(200%,calc(112vh * var(--atlas-ratio)))}}@media print{.imagebutton .course-photo{width:min(100%,calc(200px * var(--atlas-ratio)))}}

/* Spelling chapter selection uses the same options as image practice. */
.spell-panel fieldset{border:0;padding:0;margin:0}.spell-panel legend{font-size:1.2rem;font-weight:750;margin-bottom:14px}.spell-panel .mock-topic-option{display:flex;margin:0;font-weight:400}.spell-panel .mock-topic-option input{width:20px;height:20px;min-height:20px;padding:0}.spell-panel .spell-settings{margin-top:24px}.spell-panel #spell-session>.mock-run-top{margin-bottom:0}.spell-panel .spell-score{scroll-margin-top:20px}

/* Shared image feedback for reading figures and simulation questions. */
.report-link{margin-top:.65rem;font-size:.83rem;text-align:left}.image-report{width:min(720px,calc(100vw - 28px));max-height:90dvh;border:1px solid var(--lx-control-line);border-radius:14px;padding:1.3rem;color:var(--ink,var(--lx-text));background:var(--lx-surface);overflow:auto}.image-report::backdrop{background:rgba(12,22,38,.72)}.report-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:.6rem}.report-toolbar h2{font-size:1.25rem;margin:.2rem 0}.image-report form>label,.image-report section>label{display:block;font-weight:600;margin-top:.9rem;margin-bottom:.35rem}.image-report textarea,.image-report select,.image-report input{width:100%;box-sizing:border-box;font:inherit;padding:.6rem;border:1px solid var(--lx-control-line);border-radius:6px;background:var(--lx-surface);color:var(--lx-text)}.image-report textarea{resize:vertical}.report-image{position:relative;display:block;width:100%;cursor:crosshair;overflow:hidden;background:#fff}.report-image img{display:block;width:100%;height:auto}.report-image .atlas-marker{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.report-proposed{position:absolute;transform:translate(-50%,-50%);width:22px;height:22px;border:3px solid #00e7ed;border-radius:50%;box-shadow:0 0 0 2px #152438;pointer-events:none}.report-proposed[hidden]{display:none}.report-coordinate-inputs{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin:.5rem 0}.report-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}#report-status{min-height:1.4em;color:var(--lx-error)}#report-id{font-size:.85rem}.report-image-hint{margin:.6rem 0}.report-coordinates{margin:.6rem 0}.image-report button:disabled{opacity:.5;cursor:wait}@media(max-width:480px){.image-report{padding:.9rem}.report-toolbar h2{font-size:1.1rem}.report-toolbar .quiet{white-space:nowrap}.report-actions button{flex:1}.report-coordinate-inputs{font-size:.8rem}}@media print{.report-link,.image-report{display:none!important}}

.lesson-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.15rem}.lesson-actions a{display:inline-flex;align-items:center;padding:.65rem .9rem;border:1px solid var(--lx-control-line);border-radius:8px;background:var(--lx-canvas);color:var(--lx-text);text-decoration:none;font-weight:700}.lesson-actions a:hover,.lesson-actions a:focus-visible{background:var(--lx-canvas);outline:2px solid var(--lx-accent);outline-offset:2px}