/* Original CTCSOL learning module; inherited brand variables, no third-party UI. */
.learn-shell{padding-top:48px;padding-bottom:72px}
.learn-eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:12px;font-weight:700;color:var(--blue);margin-bottom:12px}
.learn-intro{max-width:780px;font-size:19px;color:var(--muted)}
.learn-heading{max-width:920px;margin-bottom:32px}
.learn-heading h1{font-size:clamp(34px,4vw,54px);margin-bottom:20px}
.learn-meta{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:var(--muted);margin:24px 0}
.learn-beta{border-left:3px solid var(--gold);padding:12px 18px;background:#faf7f0;color:var(--ink);font-size:14px;line-height:1.65}
.learn-beta p:last-child{margin-bottom:0}
.learn-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin:36px 0}
.learn-group{border-top:2px solid var(--ink);padding:24px 0;min-width:0}
.learn-number{font:30px var(--serif);color:var(--gold);margin-bottom:16px;display:block}
.learn-group h2{font-size:30px;margin-bottom:14px}
.learn-group p{color:var(--muted)}
.learn-group .actions{margin-top:24px}
.learn-section{margin-top:48px}
.learn-section h2{font-size:28px}
.learn-topics{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px}
.learn-topics li{padding:16px 0;border-bottom:1px solid var(--line);min-width:0}
.learn-topics a{font-weight:600}
.learn-topics small{display:block;color:var(--muted);margin-top:5px}
.learn-note{font-size:14px;color:var(--muted);line-height:1.65}
.learn-block{display:block}
.learn-spaced{margin-top:24px}
.learn-lesson{display:grid;grid-template-columns:minmax(0,740px) minmax(220px,1fr);gap:56px;margin-top:28px}
.learn-example{background:var(--paper);border-left:3px solid var(--blue);padding:24px 28px;margin:28px 0}
.learn-han{font-size:clamp(23px,2.7vw,30px);line-height:1.65;color:var(--ink);font-family:var(--sans);margin-bottom:8px}
.learn-pinyin{color:var(--blue);font-size:16px;margin-bottom:6px}
.learn-lesson aside{border-left:1px solid var(--line);padding-left:28px}
.learn-lesson aside h2{font-size:23px}
.learn-quiz{max-width:920px;margin:0 auto}
.learn-quiz h1{font-size:clamp(29px,3vw,42px)}
.learn-toolbar{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:24px}
.learn-toolbar p{margin:0;color:var(--muted);font-size:14px}
.learn-progress{width:100%;height:7px;border:0;display:block;background:var(--line);accent-color:var(--blue);margin:12px 0 26px}
.learn-progress::-webkit-progress-bar{background:var(--line);border-radius:10px}
.learn-progress::-webkit-progress-value{background:var(--blue);border-radius:10px}
.learn-question{margin:0;padding:0;border:0;min-width:0}
.learn-question legend{font-size:17px;color:var(--muted);padding:0;margin-bottom:10px;width:100%}
.learn-question-stem{font-size:clamp(23px,3vw,32px);line-height:1.7;margin:10px 0 26px}
.learn-choices{display:grid;gap:12px}
.learn-choice{display:flex;align-items:flex-start;gap:14px;padding:16px 20px;border:1px solid var(--line);border-radius:6px;cursor:pointer;background:#fff;min-height:58px;transition:border-color .15s,background-color .15s}
.learn-choice:hover{border-color:#8da5a8}
.learn-choice:has(input:focus-visible){outline:2px solid var(--blue);outline-offset:3px}
.learn-choice:has(input:checked){border-color:var(--blue);background:#eaf3f1;box-shadow:inset 3px 0 var(--blue)}
.learn-choice input{margin:7px 0 0;accent-color:var(--blue);width:18px;height:18px;flex:none}
.learn-choice span{font-size:20px;line-height:1.5;overflow-wrap:anywhere}
.learn-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:28px}
.learn-actions button,.learn-actions a{min-height:46px}
.learn-link-button{border:0;background:transparent;color:var(--blue);text-decoration:underline;text-underline-offset:4px;padding:10px 4px;min-height:44px}
.learn-link-button:disabled{color:var(--muted);text-decoration:none;cursor:default;opacity:.6}
.learn-error{color:#9e3828;background:#fff4f0;padding:12px 16px;border-left:3px solid #9e3828;margin-top:18px}
.learn-storage{display:flex;gap:12px;align-items:flex-start;font-size:15px;margin:24px 0}
.learn-storage input{width:18px;height:18px;flex:none;margin-top:5px}
.learn-saved{padding:22px 24px;border:1px solid var(--line);background:var(--paper);margin-bottom:32px}
.learn-saved h2{font-size:23px;margin-bottom:12px}
.learn-result-lead{font-size:20px;line-height:1.65}
.learn-result-counts{display:flex;gap:24px;flex-wrap:wrap;padding:18px 0;margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.learn-result-counts strong{font-size:27px;display:block;color:var(--ink);font-weight:600}
.learn-result-counts span{color:var(--muted);font-size:14px}
.learn-result-row{border-bottom:1px solid var(--line);padding:20px 0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:start}
.learn-result-row h3{font-size:20px;margin-bottom:8px}
.learn-result-row p{font-size:14px;color:var(--muted);margin-bottom:6px}
.learn-status{font-size:13px;font-weight:600;display:inline-block;padding:3px 9px;border-radius:3px;background:var(--paper);color:var(--ink);margin-bottom:7px}
.learn-status.review{color:#8c392a;background:#fff0e9}
.learn-status.mixed{color:#785419;background:#fbf3df}
.learn-status.consistent{color:#25594a;background:#eaf4ef}
.learn-result-detail{border-bottom:1px solid var(--line);padding:14px 0}
.learn-result-detail summary{cursor:pointer;min-height:44px;font-weight:600;line-height:1.65}
.learn-completed{margin-top:18px;border-top:1px solid var(--line)}
.learn-completed>summary{padding:16px 0;min-height:48px;cursor:pointer;color:var(--blue);font-weight:600}
.learn-result-detail .learn-example{font-size:16px;margin:14px 0}
.learn-result-detail p{margin-bottom:10px}
.learn-inline-entry{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:28px;padding-top:28px;padding-bottom:28px;margin-top:12px;margin-bottom:36px}
.learn-inline-entry h2{font-size:28px;margin-bottom:8px}
.learn-inline-entry p{margin:0;color:var(--muted)}
.learn-loading{padding:40px 0;color:var(--muted)}
[data-learn-app] [hidden]{display:none!important}
@media(min-width:761px){
 .learn-shell:has(.learn-quiz){padding-top:28px}
 .learn-quiz .learn-toolbar{margin-bottom:16px}
 .learn-quiz .learn-progress{margin-bottom:18px}
 .learn-quiz h1{margin-bottom:16px}
 .learn-quiz .learn-question-stem{margin:6px 0 18px}
 .learn-quiz .learn-choices{gap:10px}
 .learn-quiz .learn-choice{padding:14px 18px;min-height:54px}
 .learn-quiz .learn-actions{margin-top:20px}
}
@media(max-width:760px){
 .learn-shell{padding-top:30px;padding-bottom:46px}.learn-groups{grid-template-columns:1fr;gap:4px;margin-top:28px}
 .learn-group{padding:22px 0}.learn-number{float:right;font-size:25px}.learn-group h2{font-size:28px}
 .learn-topics{grid-template-columns:1fr}.learn-lesson{grid-template-columns:1fr;gap:30px}.learn-lesson aside{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}
 .learn-example{padding:20px}.learn-choice{padding:14px}.learn-choice span{font-size:19px}
 .learn-result-row{grid-template-columns:1fr;gap:8px}.learn-result-counts{gap:20px}.learn-inline-entry{align-items:flex-start;flex-direction:column}
 .learn-toolbar{align-items:flex-start}.learn-question-stem{font-size:25px}.learn-actions .button{max-width:100%}
}
@media(prefers-reduced-motion:reduce){.learn-choice{transition:none}}
@media print{
 header,footer,.learn-no-print,#ctcsol-consent-panel,.ctcsol-consent-footer{display:none!important}
 .learn-shell{padding:0}.learn-quiz{max-width:none}.learn-result-detail{break-inside:avoid}
 .learn-result-row{break-inside:avoid}.learn-example{background:transparent;border:1px solid #aaa}
 .learn-note{color:#333}a{color:#123047}
 .learn-quiz h1,.learn-quiz h2,.learn-quiz h3{break-after:avoid}
}

/* Keep multi-line translated question instructions compact and readable. */
.learn-quiz .learn-question>h2{font-family:var(--sans);font-size:clamp(20px,2.1vw,25px);font-weight:600;line-height:1.5;margin-bottom:16px}
.learn-result-detail>a{display:inline-flex;align-items:center;min-height:44px}