.student-notebook{border:1px solid #2c3e5033;border-radius:12px;width:100%;max-width:920px;padding-bottom:60px;position:relative}.notebook-paper{min-height:100%;position:relative;transform:translate(-130px)}.greek-ld{--mm:3.78px;--cm:37.8px;--vline-height:calc(3*var(--cm));--top-offset:calc(3*var(--mm));--line-x:460px;--gap:calc(3*var(--mm));--left-x:calc(var(--line-x) - var(--gap));--right-x:calc(var(--line-x) + var(--gap));--underline-width:calc((1.5 + 2)*var(--cm));--ink:#2c3e50;--mono:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}.greek-ld .vline{left:var(--line-x);top:var(--top-offset);width:2px;height:var(--vline-height);background:#2c3e50a6;border-radius:2px;position:absolute}.greek-ld .dividend{right:calc(100% - var(--line-x) + var(--gap));top:var(--top-offset);font-family:var(--mono);letter-spacing:1px;color:var(--ink);white-space:nowrap;font-size:22px;position:absolute}.greek-ld .divisor{left:var(--right-x);top:var(--top-offset);font-family:var(--mono);letter-spacing:1px;color:var(--ink);font-size:22px;position:absolute}.greek-ld .divisor-underline{left:var(--line-x);top:calc(var(--top-offset) + 30px);width:calc(var(--underline-width) + var(--gap));background:#2c3e50a6;border-radius:2px;height:2px;position:absolute}.greek-ld .right-work{left:var(--right-x);top:calc(var(--top-offset) + 44px);width:calc(100% - var(--right-x) - 20px);font-family:var(--mono);color:var(--ink);position:absolute}.greek-ld .right-line.emph{font-weight:700}.greek-ld .right-line.muted{opacity:.65}.greek-ld .left-work{left:var(--left-x);top:calc(var(--top-offset) + 44px);width:calc(var(--line-x) - var(--left-x) - 14px);font-family:var(--mono);color:var(--ink);position:absolute}.greek-ld .left-line{letter-spacing:1px;white-space:pre;justify-content:flex-end;margin:6px 0;font-size:20px;display:flex}.greek-ld .left-line.emph{font-weight:700}.greek-ld .left-line.muted{opacity:.65}.greek-ld .left-rule{background:#2c3e50a6;border-radius:2px;height:2px;margin:10px 0}.step-explanation{background:#00000005;border:1px solid #00000014;border-radius:10px;margin-top:18px;padding:12px}.step-title{margin-bottom:6px;font-weight:700}.writing-hand{pointer-events:none;-webkit-user-select:none;user-select:none;font-size:26px;transition:left .35s linear,top .35s linear,opacity .2s linear;position:absolute;transform:translate(-50%,-50%)}.ink-dot{vertical-align:middle;background:#2c3e5099;border-radius:50%;width:6px;height:6px;margin-left:6px;display:inline-block}.greek-ld .ld-number{color:#c0392b;font-weight:700}.greek-ld .left-line,.greek-ld .left-line.emph{font-size:15px}.greek-ld .left-line.bring-down{opacity:.75;font-size:12px}.greek-ld .quotient-digit{display:inline-block;position:relative}.greek-ld .quotient-digit:before{content:"↗";color:#2c3e50cc;content:"↗";font-size:.75em;position:absolute;top:-.75em;left:calc(2mm - .25em)}.notebook-paper{min-height:100%}.pre-decimal,.decimal-digit,.decimal-step,.greek-ld .ld-number.decimal-digit{color:#1a7f37}.greek-ld .right-line.emph{opacity:.75;font-size:12px;display:block}.greek-ld .right-line.emph .quotient-label{margin-bottom:4px;display:block}.greek-ld .right-line.emph .ld-number{white-space:nowrap;opacity:1;font-size:20px;display:inline-block}@media (max-width:768px){.greek-ld .right-work{white-space:nowrap;width:calc(100% - var(--right-x) + 60px);overflow-x:auto}}