/* Reading layout shared by all Aprender activities. */
.activity-screen{height:100dvh;overflow:hidden;background:#eff8ff}
.activity-screen>.site-header,.activity-screen>.site-footer-art,.activity-screen .learn-breadcrumb,.activity-screen .activity-heading,.activity-screen .activity-note{display:none}
.activity-screen .number-activity{width:100%;max-width:none;margin:0;padding:8px;height:100dvh;box-sizing:border-box}
.activity-screen .book-viewer{box-sizing:border-box;position:relative;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto auto;gap:6px;width:100%;height:100%;max-width:1600px;margin:auto;padding:12px;border-radius:20px;overflow:hidden}
.reader-toolbar{display:flex;align-items:center;gap:14px;min-height:36px;font-size:13px}
.reader-toolbar a{color:#244988;font-weight:700;text-decoration:none}.reader-toolbar .choose-back{margin:0}.reader-toolbar button{margin-left:auto;border:1px solid #c4dcfa;border-radius:18px;background:#edf7ff;color:#244988;padding:8px 14px;font:inherit;cursor:pointer}
.activity-screen .page-count{margin:0;font-size:13px}.reader-stage{display:flex;gap:12px;min-height:0;overflow:hidden}.reader-frame{display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;flex:1;background:#f5faff;border-radius:16px;overflow:hidden}
.activity-screen .book-page{flex:none;border-radius:10px;max-width:100%;max-height:100%}.activity-screen #activity-image{width:100%;height:100%;object-fit:contain}.activity-screen .corner-repair{width:100%;height:100%}
.activity-screen .quiz-area{display:flex!important;flex-direction:column;justify-content:center;gap:8px;flex:0 0 320px;margin:0;padding:2px;overflow:auto}.activity-screen .quiz-area[hidden]{display:none!important}
.activity-screen .quiz-card{padding:10px;gap:7px;flex:none}.activity-screen .quiz-content{min-width:0}.activity-screen .quiz-card h3{font-size:13px;line-height:1.35;margin:0 0 6px}.activity-screen .quiz-number{width:26px;height:26px;min-width:26px;font-size:13px}.activity-screen .quiz-options{gap:5px}.activity-screen .quiz-options button{min-height:36px;padding:6px 9px;font-size:12px}.activity-screen .quiz-result{font-size:12px;margin:4px 0 0;min-height:16px}.activity-screen .activity-feedback{font-size:12px;min-height:18px;margin:0}.activity-screen .activity-controls{margin:0;gap:12px}.activity-screen .activity-controls button{min-height:44px;padding:10px 20px}.activity-screen #image-error{position:absolute;top:90px;left:20px;background:#fff0ed;padding:12px;z-index:3}.activity-screen .finish-panel{position:absolute;inset:25% 10%;z-index:4;background:#effbe4;border:3px solid #75bd39;box-shadow:0 10px 50px #2346;overflow:auto;align-content:center}
.reader-zoom{width:95vw;height:94dvh;max-width:none;max-height:none;padding:10px;border:0;border-radius:16px;overflow:auto}.reader-zoom::backdrop{background:#142957bb}.reader-zoom button{position:sticky;top:0;display:block;margin:0 0 10px auto;padding:12px;background:#2465d8;color:white;border:0;border-radius:12px;font-weight:700}.reader-zoom img{display:block;width:max(100%,900px);max-width:none;height:auto}
@media(max-width:720px){.activity-screen .number-activity{padding:4px}.activity-screen .book-viewer{padding:8px;gap:4px}.reader-toolbar{gap:8px;font-size:11px;flex-wrap:wrap}.reader-toolbar button{padding:7px}.activity-screen .page-count{font-size:10px;gap:8px}.reader-stage{flex-direction:column;gap:5px}.reader-stage.with-quiz .reader-frame{flex:1;min-height:80px}.activity-screen .quiz-area{flex:0 1 auto;max-height:49%;display:grid!important;grid-template-columns:1fr 1fr;align-content:start;gap:5px;justify-content:normal}.activity-screen .quiz-area[hidden]{display:none!important}.activity-screen .quiz-card{padding:5px;gap:4px}.activity-screen .quiz-card h3{font-size:10px;margin-bottom:4px}.activity-screen .quiz-number{min-width:19px;width:19px;height:19px;font-size:10px}.activity-screen .quiz-options button{font-size:10px;min-height:32px;padding:4px 6px}.activity-screen .quiz-result{font-size:10px;min-height:12px;margin-top:2px}.activity-screen .activity-feedback{font-size:10px;min-height:15px}.activity-screen .activity-controls button{font-size:13px;padding:8px 12px}.activity-screen .progress-track{min-width:20px}}
@media(max-height:480px) and (min-width:721px){.activity-screen .quiz-area{flex-basis:380px}.activity-screen .quiz-card{padding:4px}.activity-screen .quiz-result{min-height:0;margin:0}.activity-screen .quiz-options button{min-height:30px}}
.activity-screen .quiz-number{flex-basis:26px}.activity-screen .quiz-options button{min-width:0}.activity-screen .activity-controls{padding:4px 2px}.activity-screen .page-count{padding-bottom:4px}
@media(max-width:720px){.activity-screen .quiz-number{flex-basis:19px}.activity-screen .page-count{flex-direction:row}.activity-screen .quiz-area:has(.quiz-card:nth-child(4)){grid-template-columns:1fr 1fr}}