:root{--purple:#8050d7;--page:#f7faf9;--ink:#303335;--font:18px}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font-family:'Nunito Sans',Arial,sans-serif;font-size:var(--font);line-height:1.65}button,a,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #18776f;outline-offset:4px}header{height:84px;background:#fff;border-bottom:1px solid #e2e8e5;display:flex;align-items:center;gap:25px;padding:10px 34px;position:sticky;top:0;z-index:5}#brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:#476560;font-size:14px;line-height:1.1;min-width:148px}.mark{font-size:44px;color:#4ca59a}#subjectTitle{font-size:19px;font-weight:800;line-height:1.3;flex:1}.tools{display:flex;gap:8px}.tools button{height:38px;width:40px;border:0;border-radius:7px;background:#f0eafa;color:var(--purple);font-weight:800}#settings{position:fixed;right:28px;top:92px;z-index:10;border:1px solid #e5e2ec;border-radius:12px;background:white;padding:20px;box-shadow:0 12px 32px #34304418}#settings button{margin:3px;border:1px solid #cfcbd9;border-radius:5px;padding:8px}.swatch{height:32px;width:32px}.shell{max-width:1130px;margin:45px auto;padding:0 32px}.intro{max-width:760px;margin-bottom:35px}h1{font-size:34px;line-height:1.25;margin:10px 0 18px}h2{font-size:24px;line-height:1.4}h3{font-size:19px}.eyebrow{font-size:13px;color:#81778e;font-weight:800;letter-spacing:1.6px;text-transform:uppercase}.muted{color:#6f7476;font-size:15px}.notice{border-left:3px solid #9c7cd0;background:#f0edf6;padding:14px 20px;font-size:15px;border-radius:0 8px 8px 0}.subjects{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.subject-card{background:white;border:1px solid #e3e7e5;border-radius:15px;padding:26px}.subject-top{display:flex;align-items:center;gap:16px}.icon{color:#719b93;background:#edf7f3;width:56px;height:56px;border-radius:12px;text-align:center;font-size:28px;padding:6px}.subject-top h2{font-size:18px;margin:0;text-transform:uppercase}.subject-card p{font-size:15px;margin:14px 0 22px;color:#697275}.paper-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-top:1px solid #edf0ef;font-size:16px}.paper-row button,.primary{background:var(--purple);color:white;border:none;border-radius:8px;padding:10px 22px;font-weight:700}.paper-row button{font-size:14px;padding:8px 17px}.badge{font-size:12px;color:#5e8177}.footer{margin:30px 0;color:#6b7371;font-size:13px}.footer a{color:#69509a}.instruction{max-width:800px;margin:35px auto;padding:30px 38px;background:white;border:1px solid #e2e7e4;border-radius:14px}.instruction h1{text-align:center;font-size:24px}.instruction li{margin:12px 0}.choice-line{display:flex;flex-wrap:wrap;gap:16px;padding:18px 0;align-items:center}.choice-line label{font-size:16px}select{padding:7px;border:1px solid #ddd;border-radius:6px;background:white}.session-bar{max-width:1020px;margin:25px auto 0;padding:0 30px;display:flex;justify-content:space-between;gap:15px;font-size:14px;color:#81788b}.timer{font-variant-numeric:tabular-nums;color:#55416e;font-weight:800}.exam{max-width:1020px;margin:26px auto 50px;padding:0 30px}.exam-label{text-align:center;color:#968c9e;font-size:16px;font-weight:800;margin-bottom:35px}.question-card{background:white;border:1px solid #e2e7e4;border-radius:14px;padding:30px;min-height:135px;margin-bottom:28px}.question-card p:first-child{margin-top:0}.question-card p:last-child{margin-bottom:0}.answers{display:grid;grid-template-columns:1fr;gap:12px;max-width:700px;margin:0 auto}.answer{background:white;border:2px solid #e5e7ec;border-radius:13px;min-height:65px;padding:14px 21px;text-align:left;color:var(--ink);display:flex;align-items:center;gap:16px;transition:border-color .15s}.answer:hover{border-color:#bc9bea}.answer.selected{border-color:var(--purple);background:#f1eafa}.letter{height:27px;min-width:27px;border:1px solid #e5e1eb;border-radius:50%;color:#8d839b;font-size:13px;display:grid;place-items:center}.selected .letter{background:var(--purple);color:white;border-color:var(--purple)}.actions{display:flex;justify-content:flex-end;margin:28px auto 0;max-width:700px;gap:15px}.secondary{border:1px solid #ddd7e5;background:white;color:#665877;border-radius:8px;padding:10px 20px}.reading{display:grid;grid-template-columns:1.1fr 1fr;gap:25px}.passage{background:#fff;border:1px solid #e2e7e4;border-radius:14px;padding:25px;max-height:65vh;overflow:auto}.passage h2{margin-top:0}.paragraph{display:flex;gap:14px;margin:20px 0;font-size:1em}.paragraph b{color:#91948f}.reading .question-card{padding:24px}.diagram{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:center;margin:20px 0}.shape{width:104px;height:104px;display:block}.answers.visual{grid-template-columns:repeat(5,1fr);max-width:100%}.visual .answer{padding:10px 6px;flex-direction:column;gap:5px}.visual svg{width:100%;max-width:105px;height:auto}.net{width:220px;height:210px}.score{font-size:56px;color:var(--purple);font-weight:800;line-height:1.2}.results{max-width:960px}.result-top{background:white;border:1px solid #e2e7e4;border-radius:14px;padding:35px;margin:25px 0}.review{background:white;border:1px solid #e2e7e4;border-radius:12px;margin:14px 0;padding:22px}.review summary{cursor:pointer;display:flex;gap:16px;align-items:center}.correct{color:#397e62}.wrong{color:#b54b4b}.review .diagram{justify-content:flex-start}.review .shape{width:85px;height:85px}dialog{border:1px solid #dfd8e8;border-radius:14px;max-width:560px;padding:28px;background:#fff;color:var(--ink)}dialog::backdrop{background:#25233366}.history{margin-top:35px}.history div{padding:10px 0;border-bottom:1px solid #e1e6e4;font-size:15px}.progress{height:3px;background:#e4deed}.progress span{display:block;height:100%;background:#a88ad8}a{color:#6b49a0}#app{min-height:80vh}.large{font-size:1.05em}body[data-overlay="on"] .question-card,body[data-overlay="on"] .passage,body[data-overlay="on"] .answer{background:var(--page)}@media(min-width:1000px){.exam:not(.has-reading) .question-card{max-width:700px;margin-left:auto;margin-right:auto}}@media(max-width:650px){header{height:74px;padding:10px 15px;gap:10px}#brand{min-width:100px;font-size:11px}.mark{font-size:32px}#subjectTitle{font-size:13px}.tools{gap:3px}.tools button{width:30px;height:32px}.shell{margin:28px auto;padding:0 20px}h1{font-size:28px}.subjects{grid-template-columns:1fr}.instruction{padding:25px;margin:20px}.reading{grid-template-columns:1fr}.passage{max-height:42vh}.exam{padding:0 18px}.question-card{padding:23px}.answers.visual{gap:5px}.visual .answer{border-radius:8px}.visual .letter{height:23px;min-width:23px}.session-bar{padding:0 20px;font-size:12px}.shape{width:75px;height:75px}.exam-label{margin-bottom:20px}.actions{flex-wrap:wrap}.paper-row{gap:7px}.result-top{padding:24px}}

#subjectTitle{min-width:0}@media(max-width:380px){#brand{min-width:32px}#brand span:last-child{display:none}.tools button{width:28px}#subjectTitle{font-size:12px}}

.matrix{display:grid;grid-template-columns:repeat(3,80px);gap:8px;justify-content:center;margin:20px 0}.matrix svg{width:80px;height:80px}.data-table{margin:25px auto;border-collapse:collapse}.data-table td,.data-table th{border:1px solid #9d979f;padding:10px 18px}.about-link{background:none;border:0;color:#6b49a0;text-decoration:underline;padding:0;font-size:inherit}.level-chart{display:flex;flex-wrap:wrap;gap:5px;margin:15px 0}.level-step{background:#ebe3f6;padding:4px 8px;border-radius:5px;font-size:13px}@media(max-width:650px){.matrix{grid-template-columns:repeat(3,65px)}.matrix svg{width:65px;height:65px}.data-table td,.data-table th{padding:8px}}
/* Plain-language navigation and subject illustrations */
.icon{display:grid;place-items:center;flex:0 0 56px;padding:12px}.icon svg{width:32px;height:34px}.mark{display:flex}.mark svg{width:35px;height:38px}.tools button{width:auto;min-width:40px;padding:0 12px;font-size:13px;white-space:nowrap}.view-nav{background:white;border-bottom:1px solid #e2e8e5;padding:12px 34px;display:flex;gap:12px}.view-nav[hidden]{display:none}.view-nav button{background:white;border:1px solid #d9e0dd;border-radius:8px;padding:9px 18px;color:#415c55;font-weight:700}.view-nav button[aria-current="page"]{background:#eef5f2;border-color:#7fa398}.view-nav button span{font-weight:400;font-size:12px;margin-left:5px}.start-guide{background:#fff;border:1px solid #e2e8e5;border-radius:14px;padding:20px 24px;margin-bottom:24px}.start-guide h2{font-size:21px;margin:0 0 10px}.start-guide p{font-size:15px;margin:8px 0}.start-guide button{margin-top:8px}.subject-shortcuts{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 22px}.subject-shortcuts a{display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid #dce4e0;border-radius:8px;background:#fff;text-decoration:none;color:#476560;font-size:14px}.subject-shortcuts svg{width:18px;height:20px}.subject-card{scroll-margin-top:100px}.back-link{background:none;border:0;padding:0;color:#6b49a0;text-decoration:underline;margin-bottom:20px;font-size:15px}.library-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;background:#fff;border:1px solid #e2e8e5;border-radius:14px;padding:24px;margin-top:24px}.library-filters label{display:flex;flex-direction:column;gap:5px;font-size:15px;font-weight:700}.library-filters select,.library-filters input{width:100%;min-width:0;min-height:44px;padding:9px 12px;font-weight:400;color:#303335;border:1px solid #cfdad4;border-radius:7px;background:white}.library-filters .search-label{grid-column:1/-1}.library-filters>button{justify-self:start}.library-count{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:25px 0 12px}.library-count h2{font-size:22px;margin:0}.library-count>span{font-size:14px;color:#697275}#libraryResults{scroll-margin-top:100px}.library-question{background:white;border:1px solid #dce5df;border-radius:12px;margin:12px 0}.library-question>summary{padding:20px 24px;cursor:pointer;list-style:none}.library-question>summary::-webkit-details-marker{display:none}.question-meta{font-size:13px;color:#64796f;margin-bottom:6px}.question-preview{font-size:17px;line-height:1.5}.open-cue{display:inline-block;color:#6b49a0;text-decoration:underline;font-size:14px;margin-top:10px}.library-question[open] .open-cue{display:none}.library-question-content{padding:0 24px 24px}.library-question .passage{max-height:none;margin-bottom:20px}.library-options{display:grid;gap:8px}.library-options>div{border:1px solid #e3e7e5;border-radius:8px;padding:12px 16px}.library-visual{grid-template-columns:repeat(5,minmax(0,1fr))}.library-visual>div{display:flex;align-items:center;flex-direction:column;padding:8px}.library-visual svg{width:100%;max-width:105px;height:auto}.solution{border-left:3px solid #719b93;background:#edf7f3;padding:14px 18px;margin-top:18px}.solution summary{cursor:pointer;font-size:15px;font-weight:700}.solution svg{max-width:120px}.library-pages{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:25px 0}.library-pages span{font-size:14px}.subject-top>div{min-width:0}.subject-top h2{overflow-wrap:anywhere}.result-top button{margin:5px}.data-table{max-width:100%}.library-question-content{overflow-x:auto}
@media(max-width:650px){header{flex-wrap:wrap;height:auto;min-height:80px;padding:12px 15px;gap:10px}#subjectTitle{font-size:12px}.tools{width:100%;justify-content:flex-end}.tools button{height:32px;padding:0 10px}.view-nav{padding:10px 15px;gap:8px}.view-nav button{font-size:14px;padding:8px 12px}.view-nav button span{display:block;margin:0}.start-guide{padding:20px}.subject-card{padding:22px}.library-filters{grid-template-columns:1fr;padding:18px}.library-question>summary{padding:18px}.library-question-content{padding:0 18px 18px}.library-visual{grid-template-columns:repeat(3,minmax(0,1fr))}.library-pages{flex-wrap:wrap}.paper-row button{white-space:nowrap}.actions .secondary,.actions .primary{font-size:14px;padding:9px 13px}}