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var(--line);border-radius:12px;box-shadow:var(--shadow)}.reader-expanded .reader-viewport{height:auto;flex:1;min-height:0}.pdf-text-layer{position:absolute;inset:0;overflow:clip;line-height:1;text-align:initial;letter-spacing:normal;word-spacing:normal;text-size-adjust:none;transform-origin:0 0;--min-font-size: 1;--text-scale-factor: calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv: calc(1 / var(--min-font-size))}.pdf-text-layer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0 0;-webkit-user-select:text;user-select:text}.pdf-text-layer>:not(.markedContent),.pdf-text-layer .markedContent span:not(.markedContent){z-index:1;--font-height: 0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x: 1;--rotate: 0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}.pdf-text-layer .markedContent{display:contents}.pdf-text-layer ::selection{background:#2985dc55}@media(max-width:600px){.student-lesson{scroll-margin-top:160px}.document-heading>button{width:100%}.reader-toolbar{gap:10px}.reader-zoom{flex:1}.reader-expand{margin-left:0}.reader-pages{width:100%;justify-content:center}.reader-viewport{padding:10px}.reader-expanded{inset:0!important;border-radius:0!important}.lesson-kind{font-size:10px}.document-upload>button{width:100%;margin:8px 0 0!important}}