[hidden]{display:none!important}button:disabled{opacity:.5;cursor:default}button,input,textarea,select{font:inherit}input,textarea,select{border:1px solid var(--line,#d8ddd7);border-radius:9px;padding:10px;background:var(--paper,#fff);color:inherit}label{display:grid;gap:7px}form{display:grid;gap:14px}.auth{max-width:470px;margin:8vh auto;padding:28px}.auth form{margin:24px 0}.auth small{display:block;margin-top:24px;color:#68756a}.authMessage{min-height:24px}#authMessage{white-space:pre-wrap}.reading-controls{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:28px;font-size:13px}.reading-controls button{border:1px solid #cdd7ce;background:transparent;color:inherit;border-radius:7px;padding:6px 10px}.reading-controls #userName{margin-right:auto}#saveStatus{font-weight:600}.question-text,.explanation{font-size:var(--reading-font,18px);line-height:var(--reading-spacing,1.7);white-space:pre-wrap}.question-text{margin:24px 0}.explanation{border-top:1px solid #d7dfd7;margin-top:24px;padding-top:24px}.choices button{color:inherit}.text-choice{text-align:left;display:flex;gap:14px;align-items:flex-start;width:100%;padding:16px;border:1px solid #cad7ce;border-radius:10px;background:transparent;margin:8px 0;line-height:1.6}.correct{border-color:#26996a!important;background:#e3f5ec!important;color:#123c29!important}.incorrect{border-color:#c66!important;background:#faeaea!important;color:#702020!important}.choice-letter{font-weight:700;min-width:24px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.round-label,.muted{color:#69786b;font-size:14px}.stat-note{font-size:13px;color:#69786b}.history-table{width:100%;border-collapse:collapse;margin:18px 0}.history-table td,.history-table th{padding:12px 10px;border-bottom:1px solid #d5ded6;text-align:left;vertical-align:top}.table-scroll{overflow-x:auto}.history-table th{font-size:12px;text-transform:uppercase;letter-spacing:.06em}.history-table button{margin:3px}.status-chip{font-size:12px;border-radius:20px;background:#e8eee8;padding:5px 9px;white-space:nowrap}.list-card,.panel{padding:24px;border:1px solid #d3ded4;border-radius:15px;margin:14px 0;background:var(--paper,#fff)}.list-card h3{margin-top:0}.tile-bottom{gap:10px}.question-grid{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px}.question-grid button{border:1px solid #c9d3ca;border-radius:6px;min-width:32px;padding:5px;background:transparent;color:inherit}.question-grid .current{outline:2px solid #40664c}dialog{width:min(1100px,92vw);max-height:90vh;border:1px solid #bac9bd;border-radius:16px;padding:20px;background:var(--paper,#fff);color:inherit}dialog::backdrop{background:#12261dcc}dialog iframe{display:block;width:100%;height:70vh;border:0;margin-top:16px}dialog pre{white-space:pre-wrap;word-wrap:break-word;font-size:13px}textarea{width:100%;min-height:130px}.bar-row{display:grid;grid-template-columns:minmax(200px,1fr) 100px;gap:8px;margin:24px 0}.bar-row progress{width:100%;height:10px;grid-column:1/-1;accent-color:#426f4e}.small{font-size:13px}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}.badge{display:inline-block;padding:4px 10px;background:#e4eee4;border-radius:20px;font-size:12px}.error{color:#a53939}.source-crop canvas{max-width:100%;height:auto;display:block;margin:14px 0}body[data-theme=dark]{--paper:#17221d;--line:#344b3d;background:#101b15;color:#e1eee5}body[data-theme=dark] .shell,body[data-theme=dark] main{background:#101b15}body[data-theme=dark] header,body[data-theme=dark] aside,body[data-theme=dark] .chapter-tile,body[data-theme=dark] .question-card,body[data-theme=dark] .stats{background:#17271e;color:#e1eee5}body[data-theme=dark] h1,body[data-theme=dark] h2,body[data-theme=dark] h3,body[data-theme=dark] .brand,body[data-theme=dark] .breadcrumb b,body[data-theme=dark] .stats b{color:#e1eee5}body[data-theme=dark] .nav-main,body[data-theme=dark] #chapters button{color:#d1e1d5}body[data-theme=dark] .secondary{color:#e1eee5;background:#24382a}body[data-theme=dark] .muted,body[data-theme=dark] .round-label,body[data-theme=dark] .stat-note{color:#a9bfad}body[data-theme=dark] .status-chip,body[data-theme=dark] .badge{background:#294734;color:#dcecdf}@media(max-width:760px){.two-columns{grid-template-columns:1fr}.auth{margin-top:3vh}.history-table{font-size:13px}.reading-controls{margin-top:15px}header{flex-wrap:wrap;height:auto;min-height:76px}.search{max-width:100%}.bar-row{grid-template-columns:1fr 70px}h1{font-size:42px}}
[aria-hidden="true"].brand-icon{user-select:none}
.choices .text-choice{font-size:var(--reading-font,18px);line-height:var(--reading-spacing,1.7)}
.question-text,.explanation,.choice-text{user-select:text;overflow-wrap:anywhere}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px}
.result-grid b{display:block;font-size:27px}.result-grid span{font-size:13px}
.preview-notice{padding:14px 18px;border:1px solid #b9cebf;border-radius:10px;background:#e8f2e8;color:#254b31;font-size:13px}
.question-media{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));gap:18px;margin:20px 0 26px}.question-media figure{margin:0;padding:14px;border:1px solid #cad7ce;border-radius:12px;background:#f7faf7}.question-media img{display:block;width:auto;max-width:100%;height:auto;max-height:560px;margin:auto;border-radius:8px}.question-media figcaption{margin-top:9px;color:#69786b;font-size:12px;text-align:center}.media-status{color:#69786b}body[data-theme=dark] .question-media figure{background:#101b15;border-color:#344b3d}body[data-theme=dark] .question-media figcaption{color:#a9bfad}