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minmax(0,1fr);gap:2rem;margin-block:1.5rem;display:grid}.practice-editor>*{min-width:0}.practice-items{flex-direction:column;gap:.5rem;margin-bottom:1rem;display:flex}.practice-items button{text-align:start;white-space:normal}.practice-items [aria-current=true]{outline:2px solid var(--accent);outline-offset:2px}@media (width<=700px){.practice-editor{grid-template-columns:minmax(0,1fr)}.practice-items{max-height:15rem;overflow:auto}}.course-browser{margin-block:1.5rem 2rem}.course-navigation{flex-direction:column;align-items:flex-start;gap:1rem;display:flex}.course-navigation section{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.course-navigation h2{margin:0;font-size:1.15rem}.course-navigation [aria-current=page]{background:var(--accent);color:var(--on-accent)}.unit-heading{margin-block:2rem 1rem}@media (width<=700px){.course-navigation section{flex-direction:column;align-items:flex-start;gap:.75rem}}