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var(--crt-border);flex:1;height:6px}.coach__bar-fill{background:var(--crt-green);height:100%;transition:width .2s}.coach__steps{color:var(--crt-dim);margin:8px 0 0;padding:0;font-size:12px;list-style:none}.coach__steps .is-done{color:var(--crt-green)}.coach__steps .is-current{color:var(--crt-amber);font-weight:700}.coach__teaches{color:var(--crt-dim);margin-top:14px;font-size:11px}.coach__teaches .coach__label{margin-right:6px;display:inline}.coach__lessons{margin:10px 0 0;padding:0;list-style:none}.coach__lesson-link{color:var(--crt-white);font:inherit;cursor:pointer;text-align:left;background:0 0;border:0;padding:3px 0}.coach__lesson-link:hover{color:var(--crt-amber)}.coach__lesson-num{color:var(--crt-cyan)}.coach__done{color:var(--crt-green);font-size:11px}.explain{background:var(--crt-bezel);border-left:1px solid var(--crt-border);z-index:40;width:min(460px,100vw);font-family:var(--font-mono);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;right:0;box-shadow:-20px 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